Climatological Report (Monthly)
Issued by NWS Marquette, MI

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000
CXUS53 KMQT 240204 AAD
CLMMQT

CLIMATE REPORT...FINAL
NATIONAL WEATHER SERVICE MARQUETTE MI
1004 PM EDT THU APR 23 2015

...................................

...THE MARQUETTE MI CLIMATE SUMMARY FOR THE MONTH OF MARCH 2015...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1961 TO 2015

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH              81   03/21/2012
 LOW              -30   03/03/2003
HIGHEST            58   03/10        33      25       50  03/10
LOWEST            -17   03/05        14     -31      -19  03/03
AVG. MAXIMUM     35.0              34.7     0.3     27.5
AVG. MINIMUM     14.0              13.8     0.2      3.8
MEAN             24.5              24.2     0.3     15.6
DAYS MAX >= 90      0               0.0     0.0        0
DAYS MAX <= 32     14              12.8     1.2       21
DAYS MIN <= 32     29              29.2    -0.2       31
DAYS MIN <= 0       4               4.4    -0.4       14

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         6.08   1979
 MINIMUM         0.28   2010
TOTALS           1.26              3.03   -1.77     1.96
DAILY AVG.       0.04              0.10   -0.06     0.06
DAYS >= .01        11              14.5    -3.5       16
DAYS >= .10         4               7.2    -3.2        8
DAYS >= .50         0               1.4    -1.4        1
DAYS >= 1.00        0               0.6    -0.6        0
GREATEST
 24 HR. TOTAL    0.43   03/25 TO 03/25

SNOWFALL (INCHES)
RECORDS
 TOTAL           83.1   2002
TOTALS           11.3              34.9   -23.6     30.0
SINCE 7/1       165.3             187.3   -22.0    159.5
SNOWDEPTH AVG.     24                21       3       34
DAYS >= 1.0         3               7.2    -4.2        9
GREATEST
 SNOW DEPTH        33   03/09                         41  03/28
                        03/08
                        03/07
 24 HR TOTAL      4.5   03/25 TO 03/25

DEGREE_DAYS
HEATING TOTAL    1249              1263     -14     1523
 SINCE 7/1       8560              7887     673     8845
COOLING TOTAL       0                 0       0        0
 SINCE 1/1          0                 0       0        0
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              MM
HIGHEST WIND SPEED/DIRECTION    MM        DATE   MM
HIGHEST GUST SPEED/DIRECTION    37/270    DATE  03/17

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER             MM
NUMBER OF DAYS FAIR          MM
NUMBER OF DAYS PC            MM
NUMBER OF DAYS CLOUDY        MM

AVERAGE RH (PERCENT)     MM

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       0
LIGHT RAIN                5     FREEZING RAIN              0
LT FREEZING RAIN          1     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW               18     SLEET                      1
FOG                       1     FOG W/VIS <= 1/4 MILE      0
HAZE                      0

-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.

&&

...MARCH 2015 MONTHLY CLIMATE SUMMARY FOR UPPER MICHIGAN...
/THIS DISCUSSION DOES NOT INCLUDE CHIPPEWA AND MACKINAC COUNTIES/

...PRECIPITATION AND SNOWFALL GENERALLY WELL BELOW NORMAL...
...TENTH DRIEST MARCH AT MANISTIQUE...

...NEAR NORMAL MEAN MONTHLY TEMPERATURE EXCEPT COLDER THAN NORMAL
OVER THE EAST...

MARCH CLIMATE STATISTICS FOR THE MARQUETTE NWS IN NEGAUNEE
 TOWNSHIP

                                    NORMAL   DEPARTURE
AVERAGE TEMPERATURE         24.5     24.2   PLUS    0.3
AVERAGE HIGH TEMPERATURE    35.0     34.7   PLUS    0.3
AVERAGE LOW TEMPERATURE     14.0     13.8   PLUS    0.2
HEATING DEGREE DAYS         1249     1263  MINUS     14
COOLING DEGREE DAYS            0        0             0
TOTAL PRECIPITATION         1.26     3.03  MINUS   1.77
TOTAL SNOWFALL              11.3     34.9  MINUS   23.6

HIGHEST TEMPERATURE:                    58 ON 3/10
LOWEST TEMPERATURE:                    -17 ON 3/5
GREATEST CALENDAR DAY PRECIPITATION:  0.43 ON 3/25
GREATEST 24 HOUR PRECIPITATION:       0.43 ON 3/25
GREATEST CALENDAR DAY SNOWFALL:        4.5 ON 3/25
GREATEST 24 HOUR SNOWFALL:             4.5 ON 3/25
PEAK WIND SPEED:      37 MPH FROM THE WEST ON 3/17

DAILY RECORD LOW MINIMUM TEMPERATURE TIED ON 3/5...-17 /OLD RECORD
                                                        -17...2003/
DAILY RECORD HIGH MINIMUM TEMPERATURE ON 3/10...35 /30...1966/
DAILY RECORD HIGH MAXIMUM TEMPERATURE ON 3/10...58 /55...1977&1990/
DAILY RECORD LOW MAXIMUM TEMPERATURE TIED ON 3/27...20 /20...1965/
---------------------------------------------------------------------
GREAT LAKES WATER LEVELS (FEET/METERS ABOVE MEAN SEA LEVEL)

                            LAKE SUPERIOR  LAKE MICHIGAN-HURON
03/01/15 DAILY MEAN         601.80/183.43     579.03/176.49
03/31/15 DAILY MEAN         601.76/183.42     579.02/176.48
AVG FEB 2015 DAILY MEAN     601.93/183.47     579.06/176.50
AVG MAR 2014 DAILY MEAN     601.15/183.23     577.26/175.95
LONG TERM MAR DAILY MEAN    601.12/183.22     578.38/176.29
MAXIMUM MAR DAILY MEAN      602.40/183.61     581.10/177.12
                                (1986)           (1986)
MINIMUM MAR DAILY MEAN      599.54/182.74     576.05/175.58
                                (1926)           (1964)

...GREAT LAKES WATER LEVELS WELL ABOVE NORMAL AGAIN IN MARCH...

GREAT LAKES WATER LEVELS HELD NEARLY STEADY IN MARCH 2015 AS
EXTENSIVE ICE COVER AND COLD WATER WHICH LIMITED EVAPORATION OFFSET
RECENT DRYNESS AND A LACK OF SIGNIFICANT RUNOFF. AT THE END OF
MARCH...WATER LEVELS ON ALL THREE OF THE WESTERN GREAT LAKES WERE 7
TO 8 INCHES ABOVE NORMAL. ON LAKES MICHIGAN AND HURON...THE LEVEL ON
3/31 THIS YEAR WAS ABOUT 21 INCHES HIGHER THAN IN MARCH 2014. AS FOR
LAKE SUPERIOR...THE 3/31 LEVEL OF THAT BODY OF WATER WAS OVER 7
INCHES HIGHER THAN OBSERVED IN MARCH A YEAR AGO.

DUE TO THE INTENSE CHILL THAT PREVAILED DURING FEBRUARY AND EARLY
MARCH...LAKE SUPERIOR...NORTHERN LAKE MICHIGAN AND THE BAY OF
GREEN BAY WERE ALMOST 100 PERCENT ICE COVERED AT THE BEGINNING OF
MARCH. BUT THE ARRIVAL OF WARMER WEATHER AND STRONG WINDS AT
TIMES CAUSED THE ICE COVER TO DIMINISH AFTER THE FIRST WEEK. BY
THE END OF MARCH...MOST OF WESTERN LAKE SUPERIOR WAS ICE FREE...
WITH THE BULK OF THE LINGERING ICE COVER OVER THE NORTHEAST HALF OF
THAT LAKE. THE ONLY ICE THAT REMAINED ON LAKE MICHIGAN AT THE END OF
THE MONTH WAS OVER THE FAR NORTHEAST CORNER. ALTHOUGH EXTENSIVE ICE
REMAINED ON THE SOUTH HALF OF THE GREEN BAY...THE ICE OVER THE NORTH
HALF WAS FRAGMENTED.

OBTAIN GREAT LAKES WATER LEVEL DATA AS REPORTED BY THE U.S. ARMY
CORPS OF ENGINEERS AT

HTTP://WWW.LRE.USACE.ARMY.MIL/MISSIONS/GREATLAKESINFORMATION/
       GREATLAKESWATERLEVELS/CURRENTCONDITIONS.ASPX (ALL LOWER CASE).
---------------------------------------------------------------------
                        MARCH CLIMATE HIGHLIGHTS

HIGHEST REPORTED TEMPERATURE...66 AT BIG BAY IN MARQUETTE COUNTY AND
                                PELKIE IN BARAGA COUNTY ON 3/10

LOWEST REPORTED TEMPERATURE...-33 AT STAMBAUGH IN IRON COUNTY ON 3/5

HIGHEST AVERAGE TEMPERATURE...29.0 DEGREES AT HARVEY IN MARQUETTE
                               COUNTY

LOWEST AVERAGE TEMPERATURE...20.9 DEGREES AT STAMBAUGH IN IRON COUNTY
                              CLARKSBURG/CHAMPION IN MARQUETTE COUNTY
                              AND HERMAN IN BARAGA COUNTY

HIGHEST MONTHLY PRECIPITATION...1.97 INCHES AT HERMAN

LOWEST MONTHLY PRECIPITATION...0.60 INCH AT MENOMINEE

HIGHEST MONTHLY SNOWFALL...24.4 INCHES AT HERMAN

LOWEST MONTHLY SNOWFALL...4.7 INCHES AT MENOMINEE AND MARQUETTE CITY

GREATEST SNOW DEPTH...47 INCHES NEAR GRAND MARAIS IN ALGER COUNTY ON 3/4

ALTHOUGH THE DEEP UPPER TROUGH OVER EASTERN NORTH AMERICA THAT
DOMINATED IN FEBRUARY AND BROUGHT SOME RECORD COLD TO UPPER MICHIGAN
LINGERED THE FIRST WEEK OF MARCH...THE WEATHER PATTERN TURNED MUCH
MORE CHANGEABLE AFTER 3/7 AND ALLOWED WARMER CONDITIONS TO PREVAIL
AT TIMES. SINCE THESE WARMER STRETCHES TENDED TO BALANCE THE COLDER
TIMES OVER AT LEAST THE WEST HALF OF UPPER MICHIGAN...THE MARCH 2015
MEAN TEMPERATURE IN THAT AREA ENDED UP CLOSE TO NORMAL. BECAUSE THE
EAST HALF OF LAKE SUPERIOR AND NORTHEAST LAKE MICHIGAN WERE COVERED
BY MORE EXTENSIVE ICE THROUGH MARCH...COLDER WEATHER TENDED TO
PREVAIL ACROSS THE AREA EAST OF A LINE FROM MARQUETTE TO ESCANABA...
LOWERING THE MEAN MONTHLY TEMPERATURE IN THIS REGION TO 2 TO 4
DEGREES BELOW AVERAGE. MARCH MEAN TEMPERATURES RANGING BETWEEN 21
AND 29 DEGREES WERE ABOUT 18 TO 23 DEGREES HIGHER THAN REPORTED IN
FEBRUARY.

ALTHOUGH THE UPPER AIR PATTERN TENDED TO VARY AFTER THE FIRST
WEEK...RELATIVELY FEW LARGER SCALE LOW PRESSURE SYSTEMS IMPACTED
THE UPPER GREAT LAKES DURING THE MONTH. SO...MONTHLY PRECIPITATION
AND SNOWFALL WERE BELOW NORMAL EVERYWHERE IN MARCH. AS IS OFTEN THE
CASE...THE SOUTH CENTRAL WAS DRIEST. MOST PLACES IN THIS AREA SAW
LESS THAN AN INCH OF WATER EQUIVALENT PRECIPITATION...ABOUT 25 TO 50
PERCENT OF NORMAL...AND NO MORE THAN 6 TO 8 INCHES OF SNOW...AROUND
50 PERCENT OF THE MONTHLY AVERAGE. OVER THE NORTHERN TIER...THE
MARCH LIQUID EQUIVALENT PRECIPITATION AND SNOWFALL WERE GENERALLY 1
TO 2 INCHES AND 10 TO 20 INCHES RESPECTIVELY...25 TO 75 PERCENT OF
THE MARCH NORMALS. HERMAN OVER THE HIGHER TERRAIN OF THE HURON
MOUNTAINS IN BARAGA COUNTY LOGGED THE MOST SNOW AND PRECIPITATION
WITH ABOUT 2 FEET AND 2 INCHES RESPECTIVELY.

ONE OF THE MORE SIGNIFICANT LOW PRESSURE SYSTEMS TO IMPACT UPPER
MICHIGAN IN MARCH TRACKED THROUGH THE NORTH CENTRAL GREAT LAKES ON
3/3 WITHIN THE DEEP UPPER TROUGH THAT PREVAILED AT THE TIME OVER
CENTRAL AND EASTERN NORTH AMERICA. THERE WAS A PERIOD OF SNOW ON
3/3...DURING WHICH MOST PLACES PICKED UP 2 TO 5 INCHES OF THE WHITE
STUFF BEFORE THE PRECIPITATION DIMINISHED IN THE AFTERNOON ON 3/3.
AFTER THIS LOW MOVED TO THE NORTHEAST LATER ON 3/3...NORTHWEST WINDS
GUSTING AS HIGH AS 40 TO 45 MPH DURING THE NIGHT OF 3/3-3/4 ADVECTED
A BITTERLY COLD ARCTIC AIRMASS INTO THE AREA. MEAN DAILY
TEMPERATURES ON 3/4 AND 3/5 AVERAGED AS MUCH AS 15 TO 25 DEGREES
BELOW NORMAL. THE THERMOMETER FAILED TO RISE ABOVE 10 DEGREES AT THE
COLDER POINTS ON 3/4. AS ARCTIC HIGH PRESSURE MOVED OVERHEAD THE
FOLLOWING NIGHT AND WINDS BECAME NEAR CALM UNDER A MOSTLY CLEAR
SKY...READINGS DIPPED TO -20 OR LOWER AT MANY PLACES EARLY ON 3/5
AND AS LOW AS -33 AT STAMBAUGH IN IRON COUNTY.

AFTER THE UPPER TROUGH WEAKENED AND GAVE WAY TO A MORE WEST-TO-EAST
FLOW OF PACIFIC AIR...WELL ABOVE NORMAL TEMPERATURES PREVAILED
DURING THE WEEK FROM 3/9 THROUGH 3/16. MEAN DAILY TEMPERATURES ROSE
TO 20 TO 25 DEGREES ABOVE AVERAGE ON 3/10 AND 3/13...THE WARMEST
DAYS IN THIS STRETCH. THE MERCURY SOARED INTO THE 50S AND EVEN THE
60S DURING THOSE AFTERNOONS AWAY FROM THE MODERATING INFLUENCE OF
THE LAKES THAT WAS MAXIMIZED OVER THE EAST HALF...SETTING SOME NEW
DAILY RECORD HIGH MAXIMUMS. BIG BAY IN MARQUETTE COUNTY AND PELKIE
IN BARAGA COUNTY REPORTED THE MONTHLY HIGHEST TEMPERATURE OF 66 ON
3/10. MINIMUM TEMPERATURES ON 3/10...3/13 AND 3/14 DID NOT FALL
BELOW 32 AT A NUMBER OF LOCATIONS. AT MANY PLACES ESPECIALLY ACROSS
THE SOUTH CENTRAL...THE LINGERING SNOW MELTED AWAY AND GAVE WAY TO
BARE GROUND DURING THIS WARM PERIOD.

ANOTHER DEEPER LOW PRESSURE SYSTEM TRACKED THROUGH THE NORTH CENTRAL
GREAT LAKES ON 3/25...BRINGING A PERIOD OF WET...HEAVY SNOW TO THE
U.P. SNOW TOTALS WERE GENERALLY 3 TO 5 INCHES. WEST WINDS GUSTED AS
HIGH AS 49 MPH OVER THE KEWEENAW DURING THE NIGHT ON 3/25-3/26 IN
THE WAKE OF THIS LOW. A COLD AIR OUTBREAK FOLLOWED THE DEPARTURE OF
THIS STORM SYSTEM. MEAN DAILY TEMPERATURES ON 3/27 AND 3/28 FELL TO
15 TO 25 DEGREES BELOW NORMAL. STAMBAUGH REPORTED A MINIMUM
TEMPERATURE OF -20 ON 3/27...AND A FEW COLD SPOTS OVER THE INTERIOR
EAST HAD A MINIMUM AS LOW AS -19 ON 3/28.

A BAND OF SNOW...MIXED WITH SOME SLEET AND FREEZING RAIN AT THE
ONSET...MARCHED ACROSS THE UPPER PENINSULA ON 3/29 IN ADVANCE OF
A LOW PRESSURE SYSTEM SLIDING SOUTHEAST FROM SOUTH CENTRAL CANADA
INTO THE GREAT LAKES. THE SNOW FELL HEAVY AT TIMES AND ACCUMULATED
2 TO 5 INCHES AT MOST PLACES...WITH AS MUCH AS 6 INCHES NEAR GRAND
MARAIS IN ALGER COUNTY. GUSTY SOUTH WINDS UNDER THIS BAND OF
PRECIPITATION REACHED 40 TO 50 MPH AT SOME PLACES.
---------------------------------------------------------------------
SOME OTHER TEMPERATURE AND PRECIPITATION OBSERVATIONS ACROSS UPPER
MICHIGAN IN MARCH 2015 INCLUDE:

IRONWOOD...AVERAGE TEMPERATURE 25.9 (0.8 DEGREE ABOVE NORMAL)
           PRECIPITATION 1.23 INCHES (0.75 INCH BELOW NORMAL)
           SNOWFALL 11.8 INCHES (13.1 INCHES BELOW NORMAL)

WATERSMEET (GOGEBIC COUNTY)...PRECIPITATION 0.90 INCH
                              SNOWFALL 8.3 INCHES

GREENLAND (ONTONAGON COUNTY)...AVERAGE TEMPERATURE 27.4 DEGREES
                               PRECIPITATION 1.44 INCHES
                               SNOWFALL 12.5 INCHES

BERGLAND DAM (ONTONAGON COUNTY)...SNOWFALL 13.1 INCHES

HOUGHTON COUNTY...AVERAGE TEMPERATURE 24.7 (0.5 DEGREE BELOW NORMAL)
 AIRPORT          PRECIPITATION 1.02 INCHES (0.54 INCH BELOW NORMAL)
                  SNOWFALL 11.4 INCHES (7.8 INCHES BELOW NORMAL)

ATLANTIC MINE (HOUGHTON COUNTY)...PRECIPITATION 1.48 INCHES
                                  SNOWFALL 18.0 INCHES

PAINESDALE (HOUGHTON COUNTY)...SNOWFALL 20.7 INCHES

COPPER HARBOR...AVERAGE TEMPERATURE 26.2 DEGREES
                PRECIPITATION 1.14 INCHES

JACOBSVILLE (HOUGHTON COUNTY)...AVERAGE TEMPERATURE 23.5 DEGREES
                                PRECIPITATION 0.97 INCH
                                SNOWFALL 7.8 INCHES

BARAGA...AVERAGE TEMPERATURE 26.7 DEGREES
         PRECIPITATION 0.88 INCH
         SNOWFALL 8.1 INCHES

WATTON (BARAGA COUNTY)...AVERAGE TEMPERATURE 24.8 DEGREES
                         PRECIPITATION 1.51 INCHES
                         SNOWFALL 9.9 INCHES

HERMAN (BARAGA COUNTY)...AVERAGE TEMPERATURE 20.9 DEGREES
                         PRECIPITATION 1.97 INCHES
                         SNOWFALL 24.4 INCHES

CLARKSBURG (MARQUETTE COUNTY)...AVERAGE TEMPERATURE 20.9 DEGREES
                                PRECIPITATION 1.38 INCHES
                                SNOWFALL 13.7 INCHES

BIG BAY (MARQUETTE COUNTY)...AVERAGE TEMPERATURE 26.2 DEGREES
                             PRECIPITATION 1.29 INCHES
                             SNOWFALL 9.6 INCHES

MARQUETTE CITY...AVERAGE TEMPERATURE 27.0 (2.0 DEGREES BELOW NORMAL)
                 PRECIPITATION 0.86 INCH (1.14 INCHES BELOW NORMAL)
                 SNOWFALL 4.7 INCHES (17.0 INCHES BELOW NORMAL)

HARVEY (MARQUETTE COUNTY)...AVERAGE TEMPERATURE 29.0 DEGREES
                            PRECIPITATION 1.22 INCHES
                            SNOWFALL 9.1 INCHES

CHATHAM (ALGER COUNTY)...AVERAGE TEMPERATURE 23.3 DEGREES
                         PRECIPITATION 1.12 INCHES
                         SNOWFALL 11.3 INCHES

MUNISING...AVERAGE TEMPERATURE 24.2 (3.5 DEGREES BELOW NORMAL)
           PRECIPITATION 1.26 INCHES (0.83 INCH BELOW NORMAL)
           SNOWFALL 11.9 INCHES (6.9 INCHES BELOW NORMAL)

GRAND MARAIS...PRECIPITATION 1.55 INCHES
(10 MILES SOUTH) SNOWFALL 15.7 INCHES

NEWBERRY...AVERAGE TEMPERATURE 23.1 (3.7 DEGREES BELOW NORMAL)
           PRECIPITATION 1.52 INCHES (0.75 INCH BELOW NORMAL)
           SNOWFALL 17.3 INCHES (0.6 INCH BELOW NORMAL)

STAMBAUGH (IRON COUNTY)...AVERAGE TEMPERATURE 20.9 DEGREES
                          PRECIPITATION 0.87 INCH
                          SNOWFALL 6.7 INCHES

AMASA (IRON COUNTY)...AVERAGE TEMPERATURE 22.8 DEGREES
                      PRECIPITATION 1.07 INCHES
                      SNOWFALL 7.4 INCHES

IRON MOUNTAIN...AVERAGE TEMPERATURE 27.3 (0.6 DEGREE BELOW NORMAL)
                PRECIPITATION 0.63 INCH (1.02 INCHES BELOW NORMAL)
                SNOWFALL 5.1 INCHES (5.5 INCHES BELOW NORMAL)

NORWAY (DICKINSON COUNTY)...PRECIPITATION 0.95 INCH
                            SNOWFALL 5.3 INCHES

MENOMINEE...PRECIPITATION 0.60 INCH
            SNOWFALL 4.7 INCHES

ESCANABA...PRECIPITATION 0.86 INCH
           SNOWFALL 7.6 INCHES

GLADSTONE (DELTA COUNTY)...PRECIPITATION 1.22 INCHES
                           SNOWFALL 6.9 INCHES

GARDEN CORNERS (DELTA COUNTY)...AVERAGE TEMPERATURE 22.5 DEGREES
                                PRECIPITATION 1.15 INCHES
                                SNOWFALL 6.4 INCHES

COOKS (SCHOOLCRAFT COUNTY)...SNOWFALL 6.3 INCHES

MANISTIQUE...AVERAGE TEMPERATURE 23.9 (3.2 DEGREES BELOW NORMAL)
             PRECIPITATION 0.89 INCH (0.90 INCH BELOW NORMAL)
             SNOWFALL 7.1 INCHES (3.7 INCHES BELOW NORMAL)

                         MARCH WEATHER SUMMARY

A PAIR OF UPPER DISTURBANCES CROSSED UPPER MICHIGAN ON 3/1 INTO
3/2...BRINGING SOME LIGHT LAKES EFFECT SNOWS THAT WERE LIMITED BY
EXTENSIVE ICE COVER ACROSS LAKE SUPERIOR. THE ARRIVAL OF A HIGH
PRESSURE RIDGE BROUGHT A RETURN OF MORE SUNSHINE FOR 3/2. MEAN DAILY
TEMPERATURES ON 3/1 AND 3/2 AVERAGED FROM NEAR NORMAL TO UP TO 5
DEGREES BELOW NORMAL.

CLOUDS THICKENED EARLY ON 3/3 IN ADVANCE OF A PAIR OF LOW PRESSURE
SYSTEMS...ONE MOVING EAST THROUGH ONTARIO AND ANOTHER MOVING
NORTHEAST INTO THE UPPER MIDWEST. A PERIOD OF SNOW ASSOCIATED WITH
THESE DISTURBANCES DROPPED 2 TO 5 INCHES OF SNOW AT MOST PLACES IN
THE U.P. BEFORE THE PRECIPITATION DIMINISHED DURING THE AFTERNOON ON
3/3.  AFTER THIS LOW MOVED TO THE NORTHEAST LATER ON 3/3...A STRONG
COLD FRONT SWEPT THROUGH THE AREA. NORTHWEST WINDS GUSTING AS HIGH
AS 40 TO 45 MPH DURING THE NIGHT OF 3/3-3/4 BEHIND THIS FRONT
ADVECTED A BITTERLY COLD ARCTIC AIRMASS INTO THE AREA AND DROPPED
WIND CHILLS AS LOW AS 25 BELOW OVER THE WEST IN THE MORNING ON 3/4.
THE THERMOMETER FAILED TO RISE ABOVE 10 DEGREES AT SOME OF THE
COLDER LOCATIONS OVER THE WEST AND NORTH CENTRAL DURING THE DAY ON
3/4. AS ARCTIC HIGH PRESSURE MOVED OVERHEAD THE FOLLOWING NIGHT AND
WINDS BECAME NEAR CALM UNDER A MOSTLY CLEAR SKY...READINGS DIPPED TO
-20 OR LOWER AT MANY PLACES EARLY ON 3/5 AND AS LOW AS A FRIGID -33
AT STAMBAUGH IN IRON COUNTY. MEAN DAILY TEMPERATURES ON 3/4 AND 3/5
AVERAGED AS MUCH AS 15 TO 25 DEGREES BELOW NORMAL.

A SERIES OF RELATIVELY WEAK ALBERTA CLIPPER TYPE DISTURBANCES
EMBEDDED IN THE NORTHWEST FLOW ALOFT ON THE SOUTHWEST FLANK OF THE
SLOWLY RETREATING UPPER TROUGH IN EASTERN CANADA MOVED THROUGH THE
UPPER GREAT LAKES ON 3/6 THROUGH 3/8. SINCE THESE DISTURBANCES WERE
DEPRIVED OF ANY SIGNIFICANT MOISTURE...ONLY SOME LIGHT SNOW AND
FLURRIES ACCOMPANIED THE PASSAGE OF THESE DISTURBANCES. SINCE THE
UPPER TROUGH WAS WEAKENING DURING THIS PERIOD...THE COLD EASED...
ALLOWING MEAN DAILY TEMPERATURES TO REBOUND TO AROUND 5 DEGREES
BELOW NORMAL ON 3/6 AND TO NEAR NORMAL ON 3/7 AND 3/8...WHEN SOME
PLACES NEAR THE WISCONSIN BORDER SAW THE THERMOMETER RISE CLOSE TO
40.

A SOUTHWEST FLOW AROUND HIGH PRESSURE MOVING INTO THE MID ATLANTIC
STATES BLEW MUCH WARMER AIR INTO THE UPPER GREAT LAKES ON 3/9 AND
3/10. AT SOME PLACES OVER THE WEST ON 3/9 AWAY FROM LAKE
MODERATION...THE THERMOMETER PEAKED IN THE 50S UNDER A GOOD DEAL OF
SUNSHINE. READINGS DID NOT FALL BELOW FREEZING DURING THE FOLLOWING
NIGHT AT THE WARMER SPOTS. DAILY RECORD WARMTH WAS THE RULE OVER
MUCH OF THE WEST HALF AWAY FROM THE MODERATING INFLUENCE OF LAKE
MICHIGAN ON 3/10 AS THE STRENGTHENING SOUTHWEST WIND PREVENTED MUCH
COOLING OFF LAKE SUPERIOR UNDER PARTLY TO MOSTLY SUNNY SKIES.
TEMPERATURES REACHED THE BALMY 60S AT SOME PLACES...INCLUDING THE
MONTHLY HIGHEST TEMPERATURE OF 66 AT BIG BAY IN MARQUETTE COUNTY AND
PELKIE IN BARAGA COUNTY. AFTERNOON TEMPERATURES DOWNWIND OF LAKE
MICHIGAN WERE IN THE MUCH COOLER 40S...WITH A HIGH OF ONLY 39 AT
MANISTIQUE ON 3/10. MEAN DAILY TEMPERATURES ON 3/9 WERE GENERALLY 5
TO 10 DEGREES ABOVE NORMAL BUT THEN UP TO 25 TO 30 DEGREES ABOVE
AVERAGE OVER THE WEST ON 3/10.

A DRY COLD FRONT PASSED IN THE EARLY MORNING HOURS ON 3/11...BUT
ONLY MODERATELY CHILLY AIR FOLLOWED INTO THE UPPER GREAT LAKES. MEAN
DAILY TEMPERATURES ON 3/11 AND 3/12 REMAINED ABOUT 10 DEGREES ABOVE
NORMAL. A GOOD DEAL OF CLOUDS AND SOME LIGHT RAIN SHOWERS
ACCOMPANIED THE PASSAGE OF A WARM FRONT EARLY ON 3/13 AS THE MERCURY
HELD ABOVE 32 AT MOST LOCATIONS...SETTING THE STAGE FOR ANOTHER VERY
WARM DAY WITH HIGH TEMPERATURES IN THE 50S AWAY FROM THE COOLING
INFLUENCE OF LAKE MICHIGAN...WHERE THE MAXIMUM AT MANISTIQUE WAS
ONLY 37. THE MEAN DAILY TEMPERATURE ON 3/13 WAS AS MUCH AS 20 TO 25
DEGREES ABOVE NORMAL OVER THE WEST HALF. THE WARMTH BETWEEN 3/10 AND
3/13 CAUSED THE WINTER SNOW COVER TO DISAPPEAR AT MANY PLACES...
MAINLY OVER THE SOUTH CENTRAL.

A COLD FRONT SWUNG ACROSS UPPER MICHIGAN DURING THE NIGHT ON 3/13-
3/14. NORTHWEST WINDS BEHIND THIS BOUNDARY GUSTED AS HIGH AS 35 TO
40 MPH INTO THE MORNING ON 3/14 AND DROVE SOME COLDER CANADIAN AIR
OVER THE UPPER PENINSULA. BUT SINCE THE AIRMASS WAS RATHER DRY...
ACCOMPANYING WEATHER WAS RESTRICTED TO JUST SOME CLOUDS AND
SPRINKLES OR LIGHT SNOW SHOWERS. ALTHOUGH THE TRAILING AIRMASS WAS
COLDER...THE THERMOMETER STILL AVERAGED 5 TO 10 DEGREES ABOVE
AVERAGE ON 3/14. SINCE THE HIGH PRESSURE BEHIND THE FRONT SHIFTED
QUICKLY TOWARD THE OHIO RIVER VALLEY ON 3/15...A GUSTY SOUTHWEST
FLOW ON ITS NORTHERN FLANK BROUGHT A QUICK RETURN OF MILDER AIR...
LIFTING THE HIGH TEMPERATURE AS HIGH AS 60 AT PELKIE. THE MEAN DAILY
TEMPERATURE ON 3/15 REBOUNDED TO 10 TO 15 DEGREES ABOVE NORMAL.
LOCATIONS DOWNWIND OF LAKE MICHIGAN WERE COOLER...WITH HIGH
TEMPERATURES NO HIGHER THAN 36 AT MANISTIQUE.

A WEAK COLD FRONT MOVED ACROSS THE UPPER GREAT LAKES DURING THE
NIGHT ON 3/15-3/16 BUT STALLED JUST TO THE SOUTH. A DISTURBANCE
RUNNING ALONG THIS FRONT BROUGHT SOME SHOWERS TO THE UPPER
PENINSULA...DROPPING ABOUT 0.25 TO 0.50 INCH OF RAIN ON THE AREA ON
3/16. ONCE THE DISTURBANCE PASSED TO THE EAST...COLDER AIR IN
ADVANCE OF HIGH PRESSURE BUILDING THROUGH SOUTH CENTRAL CANADA
PUSHED INTO THE UPPER GREAT LAKES AND LEADING TO CLEARING SKIES
DURING THE NIGHT ON 3/16-3/17. ALTHOUGH THE INCOMING AIRMASS WAS
ONLY SEASONABLY CHILLY...NORTHWEST WINDS GUSTS UP TO 35 TO 40 MPH ON
ST PATRICK`S DAY MADE THE AIR FEEL COLDER. MOSTLY CLEAR SKIES AND
DIMINISHING WINDS WERE THEN THE RULE ON 3/17-3/18 INTO 3/19 AS THE
HIGH PRESSURE RIDGE PASSED OVERHEAD. THE MERCURY AVERAGED 10 TO 15
DEGREES ABOVE AVERAGE ON 3/16...BUT READINGS THEN DIPPED TO WITHIN A
FEW DEGREES OF NORMAL ON 3/17 THROUGH 3/19.

ONCE THE HIGH PRESSURE SYSTEM PASSED TO THE EAST...A MILDER
SOUTHWEST FLOW LIFTED THE MEAN DAILY TEMPERATURE TO 10 TO 15 DEGREES
ABOVE NORMAL ON 3/20. THIS WARMUP WAS SHORT-LIVED AS ANOTHER COLD
FRONT SURGED ACROSS THE UPPER GREAT LAKES DURING THE NIGHT ON 3/20-
3/21. THERE WERE SOME SHOWERS ACCOMPANYING THIS FRONTAL PASSAGE THAT
CHANGED TO SNOW...BUT NO MORE THAN 0.05 TO 0.25 INCH OF WATER
EQUIVALENT PRECIPITATION AND AN INCH OF SNOW FELL DURING THIS EVENT.
EXPECT FOR A FEW LAKE EFFECT SNOW SHOWERS NEAR LAKE SUPERIOR...DRY
AND CHILLY WEATHER THEN PREVAILED ACROSS THE UPPER PENINSULA ON 3/21
THROUGH 3/23 ON THE SOUTHERN FLANK OF HIGH PRESSURE CROSSING
ONTARIO. THE MEAN DAILY TEMPERATURE ON THESE THREE DAYS RAN BETWEEN
ABOUT 5 AND 10 DEGREES BELOW NORMAL. THE SOUTHERLY FLOW ON THE
WESTERN FLANK OF THE HIGH DRIFTING TOWARD NEW ENGLAND BOOSTED THE
MEAN DAILY TEMPERATURE CLOSE TO NORMAL ON 3/24.

A STRONG LOW PRESSURE SYSTEM TRACKED EAST ACROSS THE UPPER GREAT
LAKES ON 3/25...BRINGING A PERIOD OF WET...HEAVY SNOW TO THE U.P. BY
THE TIME THIS PRECIPITATION DIMINISHED TO SOME LIGHTER SNOW AND RAIN
SHOWERS IN THE AFTERNOON...3 TO 5 INCHES OF WET SNOW HAD ACCUMULATED
AT MOST LOCATIONS. BEHIND THE DEPARTING LOW AND FOLLOWING A
REINFORCING COLD FRONTAL PASSAGE...WEST WINDS GUSTED AS HIGH AS 49
MPH OVER THE KEWEENAW DURING THE NIGHT ON 3/25-3/26...CAUSING SOME
BLOWING SNOW. THESE STRONG WINDS AHEAD OF ARCTIC HIGH PRESSURE
MOVING ACROSS SOUTH CENTRAL CANADA BLEW SOME VERY COLD AIR INTO THE
GREAT LAKES. NEAR NORMAL TEMPERATURES ON 3/25 FELL OFF TO ABOUT 5
DEGREES BELOW AVERAGE ON 3/26 AND THEN TO 15 TO 25 DEGREES BELOW
NORMAL ON 3/27 AND 3/28 AS THE CORE OF THE ARCTIC AIR MOVED
OVERHEAD. STAMBAUGH IN IRON COUNTY REPORTED A MINIMUM TEMPERATURE OF
-20 ON 3/27. THE THERMOMETER REBOUNDED NO HIGHER THAN 13 AT NEWBERRY
THAT AFTERNOON IN THE NORTHWEST FLOW OFF OF ICE COVERED EASTERN LAKE
SUPERIOR. A FEW COLD SPOTS OVER THE INTERIOR EAST THEN HAD A MINIMUM
AS LOW AS -19 EARLY ON 3/28. THE STRENGTHENING LATE MARCH SUN AND A
WIND SHIFT TO THE SOUTH IN THE WAKE OF THE HIGH SHIFTING TO THE EAST
ALLOWED DAYTIME TEMPERATURES ON 3/28 TO RECOVER SHARPLY.

A BAND OF SNOW...MIXED WITH SOME SLEET AND FREEZING RAIN AT THE
ONSET...MARCHED ACROSS THE UPPER PENINSULA ON 3/29 IN ADVANCE OF
A LOW PRESSURE SYSTEM AND ITS ATTENDANT COLD FRONT SLIDING SOUTHEAST
FROM SOUTH CENTRAL CANADA INTO THE GREAT LAKES AND ITS ATTENDANT
COLD FRONT. THE SNOW FELL HEAVY AT TIMES AND ACCUMULATED 2 TO 5
INCHES AT MOST PLACES...WITH AS MUCH AS 6 INCHES NEAR GRAND MARAIS
IN ALGER COUNTY. GUSTY SOUTH WINDS UNDER THIS BAND OF PRECIPITATION
REACHED 40 TO 50 MPH AT SOME PLACES...WITH THE HIGHEST GUST REPORTED
AT GERMFASK IN SCHOOLCRAFT COUNTY. THE STRONG COLD FRONT CROSSED
UPPER MICHIGAN DURING THE LATE AFTERNOON AND EVENING ON 3/29 AND WAS
FOLLOWED BY WEST WIND GUSTS UP TO 30 TO 35 MPH AND SOME CLEARING.
MOSTLY SUNNY WEATHER THEN WAS THE RULE ON 3/30. TEMPERATURES ON BOTH
3/29 AND 3/30 WERE NEAR SEASONABLE LEVELS.

AN UPPER DISTURBANCE AND ASSOCIATED LOW PRESSURE SYSTEM DROPPING
SOUTHEAST THROUGH THE UPPER GREAT LAKES CAUSED NUMEROUS SNOW SHOWERS
MIXED WITH RAIN ON 3/31. AS MUCH AS 2 TO 4 INCHES OF WET SNOW
ACCUMULATED OVER THE COLDER EASTERN PORTION OF UPPER MICHIGAN. SOME
PATCHY FOG DEVELOPED AFTER THE SNOW SHOWERS ENDED IN THE EVENING.
THE MEAN DAILY TEMPERATURE ON 3/31 AVERAGED A FEW DEGREES BELOW
NORMAL.

                            MAY FORECAST

THE CLIMATE PREDICTION CENTER (CPC) IS FORECASTING AN EQUAL CHANCE
OF AN ABOVE AND BELOW NORMAL MONTHLY MEAN TEMPERATURE IN MAY 2015
OVER ALL BUT FAR EASTERN UPPER MICHIGAN...WHERE THE CPC INDICATES A
GREATER CHANCE FOR A BELOW NORMAL MONTHLY AVERAGE TEMPERATURE. THE
CPC EXPECTS A GREATER THAN CLIMATOLOGICAL CHANCE OF BELOW NORMAL
PRECIPITATION OVER ALL OF UPPER MICHIGAN IN MAY.

                           MAY CLIMATOLOGY

MAY BRINGS A CONTINUED MODERATION IN TEMPERATURE AS DAYLIGHT
CONTINUES TO LENGTHEN. POSSIBLE SUNSHINE INCREASES FROM 863 MINUTES
ON 5/1 TO 932 MINUTES ON 5/31. THE AVERAGE TEMPERATURE IN MAY IS 12
TO 13 DEGREES HIGHER THAN IN APRIL. ALTHOUGH AVERAGE HIGH
TEMPERATURES REACH AROUND 70 BY MEMORIAL DAY OVER INLAND AREAS...
THE RELATIVELY COLD WATERS OF THE GREAT LAKES OFTEN KEEP SHORE
COMMUNITIES UP TO 20 DEGREES COOLER IN THE AFTERNOON. MORNING
TEMPERATURES FREQUENTLY SLIP BELOW FREEZING AT THE BEGINNING OF
MAY...BUT AVERAGE LOW TEMPERATURES RISE ABOVE 40 AFTER MID MONTH.

THE INCREASE IN AVERAGE TEMPERATURE RESULTS IN A GREATER THREAT OF
SHOWERS AND THUNDERSTORMS. AVERAGE PRECIPITATION IS 10 TO 40 PERCENT
HIGHER THAN IN APRIL...WITH THE GREATEST AMOUNTS MOST LIKELY NEAR
THE WISCONSIN BORDER WHERE THE STABILIZING INFLUENCE OF THE GREAT
LAKES IS LESS.

MAY IS GENERALLY A TEMPERATE MONTH...BUT WINTER CHILL IS STILL
POSSIBLE. ALTHOUGH AVERAGE TEMPERATURES RISE SHARPLY...FROST OFTEN
OCCURS AT THE END OF MAY AS RECORD LOW TEMPERATURES REMAIN BELOW
FREEZING THE ENTIRE MONTH AT MANY LOCATIONS. NEWBERRY SAW THE
MERCURY PLUNGE ALL THE WAY TO 19 AS LATE AS 5/24...IN 1925. MAY 1997
GOES DOWN IN THE RECORD BOOKS AS ONE OF THE COLDEST EVER AT ALL
REPORTING STATIONS WITH MONTHLY TEMPERATURES AS MUCH AS SEVEN TO
EIGHT DEGREES BELOW NORMAL. IN FACT...THIS MONTH IS THE COLDEST
FIFTH MONTH EVER AT MANISTIQUE (AVERAGE TEMPERATURE 44.4)...IRON
MOUNTAIN (45.9) AND ONTONAGON (46.6) AS WELL AS IN THE TOP TEN
COLDEST AT MOST OTHER UPPER MICHIGAN LOCATIONS. EVEN MORE
RECENTLY...MAY 2002 LANDED IN THE LIST OF TOP TEN COLDEST. MONTHLY
TEMPERATURES IN MAY 2002 AVERAGED 5 TO 7 DEGREES BELOW NORMAL AT
MOST SITES. AT MUNISING...THE MERCURY AVERAGED 9 DEGREES BELOW
NORMAL (41.5) AND THE MONTH GOES DOWN IN THE RECORD BOOKS AS THE
COLDEST MAY EVER. AT STATIONS WITH A LONGER TERM RECORD...MAY 1954
STANDS OUT AS VERY CHILLY...IN FACT THE COLDEST EVER AT THE HOUGHTON
COUNTY AIRPORT (41.8)...WHEN MONTHLY TEMPERATURES FELL OVER EIGHT
DEGREES BELOW NORMAL.

SNOW CAN STILL PLAGUE UPPER MICHIGAN DURING MAY. A LATE SEASON
SNOWSTORM OCCURRED IN CENTRAL UPPER MICHIGAN ON 5/9-5/10/90...WHEN
AN IMPRESSIVE 22.4 INCHES OF HEAVY WET SNOW FELL AT THE MARQUETTE
NWS...11 INCHES BLANKETED IRON MOUNTAIN...AND 7 INCHES FELL ON
MUNISING. DURING THE CHILLY MAY 1997...13 INCHES OF THE WHITE STUFF
ACCUMULATED AT ONTONAGON ON 5/12 AND 11.3 INCHES SMOTHERED IRONWOOD.
NEWBERRY WAS STRUCK BY AN EVEN LATER MAY SNOWSTORM...10 INCHES
ACCUMULATED THERE ON 5/23 AND 5/24 BACK IN 1917. MEASURABLE SNOW AS
LATE AS MEMORIAL DAY IS NOT UNPRECEDENTED...IRONWOOD RECORDED 3.7
INCHES OF SNOW ON 5/28/65.

ALTHOUGH SNOW CAN STILL FALL IN MAY...SPRING HEAT WAVES CAN ALSO
BRING MID SUMMER HEAT TO UPPER MICHIGAN. ON 5/31 IN 1934...BOTH IRON
MOUNTAIN AND IRONWOOD RECORDED MONTHLY RECORD 100 DEGREE HIGH
TEMPERATURES. RECORD HIGH TEMPERATURES ARE IN THE 90S EVERYWHERE BY
MONTHS` END...EXCEPT AT MANISTIQUE WHERE A SOUTHERLY FLOW OFF LAKE
MICHIGAN OFTEN KEEPS AFTERNOON MAXIMUM TEMPERATURES FROM GETTING AS
HIGH AS FARTHER INLAND. MAY 1977 AND 1998 ARE THE WARMEST MAYS IN
RECENT MEMORY. MAY 1977 IS THE WARMEST ON RECORD AT IRON MOUNTAIN
(62.4)...THE MARQUETTE NWS (59.4)...THE HOUGHTON COUNTY AIRPORT
(58.1) AND MUNISING (57.5). MAY 1998 GOES DOWN IN THE RECORD BOOKS
AS THE WARMEST ON RECORD AT NEWBERRY (59.1) AND IN THE TOP FIVE
WARMEST AT MANY OTHER PLACES. MAY 2000 SAW A VERY SUMMERLIKE WEEK IN
THE EARLY PART OF THE MONTH...AND TEMPERATURES AVERAGED 20 DEGREES
ABOVE NORMAL AT MANY LOCATIONS BETWEEN 5/3 AND 5/8. BARAGA SAW THE
MERCURY REACH 90 ON 5/5/2000...AND THE MARQUETTE NWS BROKE FOUR
DAILY RECORD HIGH TEMPERATURES DURING THAT 6-DAY STRETCH. IN FACT...
THE WEEK BETWEEN 5/3/00 AND 5/8/00 IS THE WARMEST 6-DAY PERIOD ON
RECORD IN EARLY MAY AT THE MARQUETTE NWS. MORE RECENTLY...MAY 2010
FEATURED A MEAN MONTHLY AVERAGE TEMPERATURE 3 TO 5 DEGREES ABOVE
NORMAL.

                       OUTLOOK FOR SUMMER

THE CLIMATE PREDICTION CENTER (CPC) IS FORECASTING AN EQUAL CHANCE
OF AN ABOVE AND BELOW NORMAL 3-MONTH AVERAGE TEMPERATURE AND ABOVE
AND BELOW AVERAGE 3-MONTH PRECIPITATION OVER ALL OF UPPER MICHIGAN
IN JUNE THROUGH AUGUST 2015.

GO TO HTTP://WWW.WEATHER.GOV/CLIMATE/L3MTO.PHP TO ACCESS DETAILED
LOCAL THREE-MONTH AVERAGE TEMPERATURE OUTLOOKS FOR A NUMBER OF SITES
IN UPPER MICHIGAN.

CHECK OUT HTTP://WWW.CPC.NCEP.NOAA.GOV FOR MORE INFORMATION ABOUT
THE CLIMATE PREDICTION CENTER AND MORE LONG RANGE PREDICTIONS.

NOTE THAT STATISTICS FOR THE NATIONAL WEATHER SERVICE OFFICE IN
NEGAUNEE TOWNSHIP ARE BASED ON RECORDS WHICH BEGAN IN OCTOBER 1961.
THIRTY YEAR NORMALS USED ARE FOR THE PERIOD OF 1981 THROUGH 2010.
NOTE ALL TEMPERATURES ARE IN FAHRENHEIT AND PRECIPITATION IS IN
INCHES. ALL CLIMATE DATA LISTED IN THIS PRODUCT ARE UNOFFICIAL. FOR
OFFICIAL DATA...PLEASE REFER TO THE NATIONAL CLIMATIC DATA CENTER.
ALSO NOTE THIS DISCUSSION DOES NOT INCLUDE DATA FROM CHIPPEWA AND
MACKINAC COUNTIES.

NWS MARQUETTE WEB PAGE IS AT HTTP://WWW.WEATHER.GOV/MQT (ALL LOWER
CASE). CONTACT THE NATIONAL CLIMATIC DATA CENTER AT (828) 271-4800
OR WWW.NCDC.NOAA.GOV.

$$

KC


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