Spring 2009 Recap

                                  ...ABOUT ON PAR FOR SPRING...

OVERALL...THE NORTHERN MICHIGAN SPRING CAME OUT TO ABOUT WHAT IS
EXPECTED...WITH BOTH TEMPERATURES AND PRECIPITATION RUNNING JUST A
BIT ABOVE (BELOW) AVERAGE...DEPENDING ON THE SITE. A CLOSER
INSPECTION OF THE NUMBERS...HOWEVER...REVEALS THAT A "RELATIVELY
WARM" MARCH AND APRIL WERE AT LEAST PARTIALLY NEGATED BY A COLDER
THAN NORMAL MAY. AS IS EXPECTED IN SPRING...PRECIPITATION WAS HIGHLY
VARIABLE...WITH PROLONGED RELATIVELY DRY PERIODS PARTIALLY OFFSET BY
BOUTS OF HEAVY RAIN. HOWEVER...ONE COULD ARGUE THE SPRING IN A WHOLE
WAS A RELATIVELY DRY ONE...AS MEANINGFUL PRECIPITATION EPISODES WERE
TOO FEW AND FAR APART. THE CULPRIT BEHIND THE TEMPERATURE AND
PRECIPITATION PATTERN WAS PERSISTENT MAINTENANCE OF COOL...AND
RELATIVELY DRY...NORTHWEST FLOW OUT OF CANADA (A PATTERN MORE
TYPICAL FOR THE WINTER AND EARLY SPRING PERIOD). UNFORTUNATELY...
EVEN IN MAY...THE PATTERN REFUSED TO BREAK DOWN...PREVENTING ANY
SUSTAINED PERIOD OF WARM WEATHER USUALLY ASSOCIATED WITH THE WANING
DAYS OF SPRING.

THE ONE DEPARTMENT WHICH DID SHOW A NOTEWORTHY TREND WAS SNOWFALL...
WITH ALL SITES (EXCEPT TRAVERSE CITY) REPORTING BELOW...TO WELL
BELOW...NORMAL TOTALS. THIS WAS TIED TO BOTH THE AFOREMENTIONED DRY
NORTHWESTERLY FLOW...AND EXTENSIVE NORTHERN LAKES ICE COVER TO START
THE SPRING SEASON...PREVENTING THE ALL-TO-TYPICAL LAKE EFFECT SNOW
SHOWERS FROM BECOMING SIGNIFICANT OR WIDESPREAD.

HERE IS A LOOK AT HOW A FEW LOCATIONS FARED DURING THE SPRING OF
2009 WITH RESPECT TO TEMPERATURES: (NOTE: VALUES REPRESENT
DEPARTURE FROM NORMAL MAXIMUM... MEAN...AND MINIMUM TEMPERATURES FOR
MARCH...APRIL...AND MAY. NORMAL VALUES ARE CALCULATED FROM
THE 30 YEAR PERIOD OF 1971-2000)

                                      SSM     HTL     APN     TVC     GLR*     ALL

MAR MAX                     +0.1    +1.8      +1.0     +2.3      -1.3     +0.8
MAR MEAN                  +0.9    +1.2      +0.3     +1.5      -0.9     +0.6
MAR MIN                      +1.8    +0.6       -0.4     +0.8      -0.4     +0.5

APR MAX                      +0.1    +0.6      +1.0      -0.3      -2.8     -0.3
APR MEAN                   +1.7    +1.0      +0.9     +0.1      -0.7    +0.6
APR MIN                       +3.4    +1.4      +0.8     +0.5     +1.6    +1.5

MAY MAX                       -4.1      -2.0      +0.4      -2.3      -5.0     -2.6
MAY MEAN                    -3.0      -0.8       -1.0      -1.9      -3.3     -2.0
MAY MIN                        -1.8     +0.3       -2.4      -1.3      -1.7     -1.4

SPRING MAX                -1.3     +0.1      +0.8      -0.1      -3.0     -0.7
SPRING MEAN             -0.1    +0.5       +0.1      -0.1      -1.6     -0.3
SPRING MIN                +1.1    +0.8        -0.7        0.0      -0.2    +0.2

*UNOFFICIAL DATA (OBSERVED TEMPERATURE DATA IS FROM AUTOMATED
SURFACE OBSERVING SYSTEM (ASOS) AND NORMAL DATA IS COMPILED FROM
COOPERATIVE OBSERVER SITES IN VICINITY OF ASOS SITES)
_____________________________________________________________________

HERE IS A LOOK AT HOW A FEW LOCATIONS FARED WITH RESPECT TO LIQUID
PRECIPITATION DURING THE SPRING OF 2009: (NOTE: PRECIPITATION
INFORMATION IS FOR THE MONTHS OF MARCH...APRIL...AND MAY. NORMAL
VALUES USED TO CALCULATE DEPARTURES ARE FROM THE 30 YEAR PERIOD OF
1971-2000)

                                                          SSM     HTL     APN       TVC*    GLR**

MAR PRECIPITATION                   0.83    1.81     1.78       2.05      1.35
MAR DEPARTURE                       -1.58   -0.24    -0.35     +0.07    -1.18

APR PRECIPITATION                   1.31     4.25     2.95       2.12      2.43
APR DEPARTURE                       -1.26   +1.96   +0.64     -0.60     -0.03

MAY PRECIPITATION                   3.49      2.64     2.90      3.00       3.09
MAY DEPARTURE                      +0.99    +0.07   +0.29   +0.70     +0.26

TOTAL PRECIPITATION(IN)        5.63      8.70     7.63      7.17       6.87
DEPARTURE FROM NORMAL  -1.85    +1.79   +0.58   +0.17      -0.95

*UNOFFICIAL DATA (OBSERVED PRECIPITATION IS FROM THE COOPERATIVE
OBSERVER SITE IN THE VICINITY OF THE ASOS SITE AND NORMAL
PRECIPITATION DATA IS COMPILED FROM THE ASOS SITE)

**UNOFFICIAL DATA (OBSERVED AND NORMAL PRECIPITATION IS FROM THE
COOPERATIVE OBSERVER IN THE VICINITY OF THE ASOS SITE)
_____________________________________________________________________

HERE IS A LOOK AT HOW A FEW LOCATIONS FARED WITH RESPECT TO SNOWFALL
DURING THE SPRING OF 2009: (NOTE SNOWFALL INFORMATION IS FOR
THE MONTHS OF MARCH...APRIL...AND MAY. NORMAL VALUES USED
TO CALCULATE DEPARTURES ARE FROM THE 30 YEAR PERIOD OF 1971-2000)

                                                          SSM        HTL       APN      TVC*      GLR**

MAR SNOWFALL                             7.7          5.2        10.5      16.3        14.3
MAR DEPARTURE                         -7.3        -4.9         -2.4      +6.0         -4.1

APR SNOWFALL                              1.3         0.2           0.1       1.2           3.2
APR DEPARTURE                          -6.3       -4.1          -4.2      -1.6         -3.7

MAY SNOWFALL                               0.3        0.0              T        0.0           0.0
MAY DEPARTURE                          +0.1      -0.3           -0.3      -0.1         -1.0

TOTAL SNOWFALL                           9.3       5.4          10.6      17.5       17.5
DEPARTURE FROM NORMAL    -13.5      -9.3          -6.9      +4.3        -8.8

*UNOFFICIAL DATA (OBSERVED PRECIPITATION IS FROM THE COOPERATIVE
OBSERVER SITE IN THE VICINITY OF THE ASOS SITE AND NORMAL
PRECIPITATION DATA IS COMPILED FROM THE ASOS SITE)

**UNOFFICIAL DATA (OBSERVED AND NORMAL PRECIPITATION IS FROM THE
COOPERATIVE OBSERVER IN THE VICINITY OF THE ASOS SITE)
____________________________________________________________________

HERE ARE SEVERAL OF THE MORE NOTABLE WEATHER EVENTS DURING THE
SPRING OF 2009:

-ON MARCH 8TH AND 9TH...A QUICK HITTING WINTER STORM STRUCK NORTHERN
MICHIGAN. HEAVY WET SNOW FELL ACROSS MUCH OF NORTHERN MICHIGAN. THE
HIGHEST SNOWFALL TOTAL CAME FROM LAKE LEELANAU...WHERE AN INCREDIBLE
15.1 INCHES OF SNOW FELL. IN ADDITION...WINDS WERE GUSTING TO 30 TO
40 MPH CREATING DIFFICULT DRIVING CONDITIONS.

-ANOTHER WINTER STORM ON THE 29TH GENERATED A MIX OF RAIN AND SNOW
ACROSS THE REGION. HEAVY WET SNOW FELL ACROSS NORTHWEST LOWER AND
EASTERN UPPER MICHIGAN WHERE 2 TO 4 INCHES OF SNOW WERE COMMON. THIS
SNOW CREATED DIFFICULT DRIVING CONDITIONS FOR SUNDAY MORNING
SERVICES.

-ON APRIL 3RD...A LATE WINTER STORM BROUGHT A COUPLE INCHES OF HEAVY
WET SNOW TO NORTHERN MICHIGAN...ESPECIALLY ACROSS THE INTERIOR
HIGHLANDS. THE HIGHEST AMOUNT...3.6 INCHES...WAS RECORDED RIGHT HERE
AT THE OFFICE.

-ON APRIL 7TH...COLD AIR CROSSING THE INCREASINGLY ICE FREE GREAT
LAKES BROUGHT A ROUND OF LATE SEASON LAKE EFFECT SNOW TO PARTS OF
NORTHWEST LOWER MICHIGAN. THE SNOWFALL WAS CONCENTRATED JUST SOUTH
AND EAST OF TRAVERSE CITY...WHERE 1 TO 3 INCH TOTALS WERE FOUND.

-EASTER SUNDAY (APRIL 12TH)...A NEAR PERFECT EASTER ACROSS NORTHERN
MICHIGAN WITH ABUNDANT SUNSHINE AND TEMPERATURES WARMING WELL INTO
THE 40S AND LOWER 50S.

-APRIL 24TH...WARMEST AIR OF THE SPRING SEASON OVERSPREAD THE
NORTHERN LAKES ON SOUTHERLY WINDS. MOST AREAS REACHED WELL INTO THE
MID TO UPPER 70S...WITH EVEN THE FIRST 80 DEGREE READING OF THE
SEASON REPORTED AT TRAVERSE CITY...WHICH MADE IT ALL THE WAY TO 82
DEGREES.

-EARLY ON APRIL 25TH...AFTER THE WARM AIR OF THE 24TH...THE SEASONS
FIRST THUNDERSTORMS WERE OBSERVED ACROSS EASTERN UPPER AND NORTHWEST
LOWER MICHIGAN. SOME OF THE STORMS PRODUCED LOCALLY HEAVY RAIN...
WITH RADAR ESTIMATES SHOWING UP TO A HALF AN INCH OF MUCH NEEDED
RAINFALL IN SOME LOCATIONS.

-APRIL 25TH THRU THE 27TH...AFTER A EXCEEDINGLY DRY PERIOD TO START
THE MONTH (UNFORTUNATELY...IN A PERIOD KNOWN AS THE NORTHERN
MICHIGAN FIRE WEATHER SEASON)...MUCH NEEDED RAINFALL WAS OBSERVED
THROUGHOUT THIS PERIOD. THREE DAY RAINFALL TOTALS RANGED FROM A HALF
AN INCH TO NEARLY AN INCH AND THREE QUARTERS. THE GREATEST AMOUNT
WAS OBSERVED AT HOUGHTON LAKE...WHICH CAME IN WITH 1.78 INCHES FOR
THE PERIOD.

-MAY 8TH...LATE NIGHT STORMS BROUGHT SOME BRIEF HEAVY RAIN AND PEA
SIZE HAIL OVER PARTS OF NORTHERN LOWER MICHIGAN. UNFORTUNATELY...THE
STORMS EXITED FAIRLY QUICKLY OFF TO THE EAST...KEEPING PRECIPITATION
AMOUNTS LIGHT (A TENTH TO A THIRD OF AN INCH) WHERE RAIN WAS
REPORTED. HOWEVER...A LOCATION NEAR ATLANTA DID REPORT AROUND ONE
INCH OF RAIN.

-MAY 11TH...HIGH PRESSURE...DRY AIR...AND EXCEEDINGLY DRY GROUND SET
THE STAGE FOR VERY COLD TEMPERATURES DURING THE EARLY MORNING
HOURS...WITH MOST LOCATIONS AWAY FROM THE IMMEDIATE LAKE SHORES
DROPPING WELL INTO THE 20S. A FEW TEENS WERE ALSO REPORTED IN THE
TYPICAL COLDER LOCATIONS OF NORTHEAST LOWER MICHIGAN...WITH 18
DEGREES AT ATLANTA THE COLDEST TEMPERATURE REPORTED.

-MAY 13TH AND 14TH...FINALLY SOME MUCH NEEDED WIDESPREAD RAINFALL
ACROSS NORTHERN MICHIGAN OUT AHEAD OF A COLD FRONT CROSSING THROUGH
THE REGION. PER THE USUAL WITH SHOWERS AND THUNDERSTORMS...RAINFALL
AMOUNTS VARIED GREATLY WITH LOCATION...RANGING FROM ONE HALF INCH TO
NEARLY ONE AND A HALF INCHES. THE HEAVIEST RAIN GENERALLY FELL SOUTH
OF THE M-72 CORRIDOR...WITH THE HIGHEST AMOUNT OF 1.51 INCHES
REPORTED 6 MILES EAST OF CADILLAC.

-MAY 16TH...LAST SNOW OF THE SEASON (HOPEFULLY) WAS OBSERVED ACROSS
PORTIONS OF NORTHERN LOWER AND EASTERN UPPER MICHIGAN DURING THE
LATE AFTERNOON AND EVENING HOURS. WHILE MOST LOCATIONS SAW ONLY
FLURRIES...SAULT STE MARIE DID RECEIVE 0.3 INCHES OF SNOW...ENOUGH
TO PUT A FRESH COAT OF THE WHITE STUFF ACROSS THE LANDSCAPE.

-MAY 18TH...ANOTHER CLEAR AND COLD NIGHT AS DRY HIGH PRESSURE
SETTLED OVERHEAD. ONCE AGAIN...TEMPERATURES DROPPED WELL INTO THE
20S ACROSS MOST OF NORTHERN MICHIGAN. ATLANTA CAME IN THE COLDEST
(LIKE THATS A SURPRISE :))...DROPPING ALL THE WAY DOWN TO 20 DEGREES.

-MAY 20TH AND 21ST...FIRST WIDESPREAD 80S OF THE SEASON OVERSPREAD
THE NORTHWOODS ON THE HEELS OF GUSTY SOUTHWEST WINDS. THE WARMEST
TEMPERATURES WAS EXPERIENCED NEAR HARRISVILLE...WHICH REACHED 91
DEGREES DURING THE AFTERNOON OF THE 21ST. A COLD FRONT DROPPING
SOUTH ACROSS THE AREA BROUGHT AN ABRUPT END TO THE SUMMERTIME WARMTH
LATER ON THE 21ST...WITH TEMPERATURES DROPPING 15 TO 20 DEGREES
QUICKLY AFTER THE FRONTAL PASSAGE.

-MAY 27TH AND 28TH...A COMBINATION OF A REMNANT SUB-TROPICAL SYSTEM
MOVING NORTH FROM THE GULF OF MEXICO...AND A LOW PRESSURE
APPROACHING FROM THE NORTHERN PLAINS...BROUGHT NORTHERN MICHIGAN
SOME MUCH NEEDED RAINFALL. ALL IN ALL...MOST LOCATIONS SAW IN EXCESS
OF AN INCH...WITH SOME AREAS REPORTING 2 INCHES OR MORE. SOUTH
BOARDMAN REPORTED THE MOST...CHECKING IN WITH 2.21 INCHES.

-MAY 31ST...THE MONTH ENDED ON A COLD NOTE...WITH EARLY MORNING
READINGS DROPPING INTO THE 20S AND 30S. THE COLD LOCATION WAS NEAR
ATLANTA...WHICH DROPPED ALL THE WAY DOWN TO 22 DEGREES...WITH INDIAN
RIVER NOT TOO FAR BEHIND...DROPPING TO 24 DEGREES.
____________________________________________________________________

HERE ARE DAILY TEMPERATURE AND PRECIPITATION RECORDS THAT OCCURRED
DURING SPRING OF 2009:

-A RECORD DAILY PRECIPITATION OF 0.56 INCH WAS TIED AT HOUGHTON LAKE
ON MARCH 29TH. THE RECORD WAS ORIGINALLY SET IN 1988.

-A RECORD SNOWFALL OF 2.9 INCHES WAS SET AT HOUGHTON LAKE ON MARCH
8TH. THE OLD RECORD WAS 1.2 INCHES SET IN 1982.

-A RECORD DAILY PRECIPITATION OF 0.77 INCH WAS SET AT ALPENA ON
MARCH 29TH. THE RECORD WAS ORIGINALLY SET IN 1944.

-A RECORD RAINFALL OF 0.94 INCHES WAS SET AT ALPENA ON APRIL 3RD.
THIS BROKE THE OLD RECORD OF 0.85 INCHES SET IN 2006.

-A RECORD RAINFALL OF 0.90 INCHES WAS SET AT ALPENA ON APRIL 20TH.
THIS BROKE THE OLD RECORD OF 0.85 INCHES SET IN 1970.

-A RECORD LOW TEMPERATURE OF 25 DEGREES WAS SET AT GAYLORD ON MAY
11TH. THIS BROKE THE OLD RECORD OF 26 DEGREES SET IN 1983.

-A RECORD LOW TEMPERATURE OF 27 DEGREES WAS SET AT GAYLORD ON MAY
18TH. THIS BROKE THE OLD RECORD OF 30 DEGREES SET IN 2002.

-A RECORD LOW TEMPERATURE OF 31 DEGREES WAS SET AT SAULT STE MARIE
ON MAY 30TH. THIS TIED THE OLD RECORD OF 31 DEGREES LAST SET IN 1996.

-A RECORD LOW TEMPERATURE OF 29 DEGREES WAS SET AT ALPENA ON MAY
30TH. THIS TIED THE OLD RECORD OF 29 DEGREES SET IN 1964.

-A RECORD LOW TEMPERATURE OF 29 DEGREES WAS SET AT GAYLORD ON MAY
31ST. THIS BROKE THE OLD RECORD OF 30 DEGREES SET IN 2001.

-A RECORD LOW TEMPERATURE OF 32 DEGREES WAS SET AT HOUGHTON LAKE ON
MAY 31ST. THIS TIED THE OLD RECORD OF 32 DEGREES SET IN 1966 AND
2001.

                   **********************

FOR ADDITIONAL CLIMATE INFORMATION INCLUDING UP TO DATE LOCAL
CLIMATE GRAPHICS...SEASONAL OUTLOOKS...AND EL NINO INFORMATION...
PLEASE VISIT THE FOLLOWING WEBSITES:

GAYLORD NATIONAL WEATHER SERVICE
  WWW.CRH.NOAA.GOV/APX/CLIMATE.PHP

CLIMATE PREDICTION CENTER
  HTTP://WWW.CPC.NOAA.GOV/PRODUCTS/PREDICTIONS/

EL NINO AND LA NINA INFORMATION
  HTTP://WWW.CPC.NOAA.GOV/PRODUCTS/ANALYSIS_MONITORING/ENSO_ADVISORY/

FOR MORE INFORMATION...CONTACT THE GAYLORD NATIONAL WEATHER SERVICE
AT (989) 731-3384...EXTENSION 726 OR 766.

$$

MSB



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