May 2009 Recap

                           ...NOT BAD FOR APRIL (TOO BAD IT WAS MAY)...

ANOTHER COLD MAY ACROSS THE NORTHWOODS...COMPLIMENTS OF PERSISTENT
NORTHWEST FLOW DIRECTLY OUT OF THE ALWAYS-SLOW-TO-WARM CANADA
NORTHLAND. THE AVERAGE TEMPERATURES JUSTIFY AS SUCH...WITH OVERALL
TEMPERATURE AVERAGES BELOW NORMAL. IF NOT FOR A RATHER WARM PERIOD
CENTERED AROUND THE 21ST (WELL INTO THE 80S FOR HIGHS)...AVERAGE
TEMPERATURES WOULD HAVE BEEN EVEN COLDER. FOR THOSE OF YOU WHO HAVE
NOT PURGED THE MEMORY OF LAST SPRING OUT OF THE MIND...THIS MAY WAS
VERY SIMILAR TO LAST...WITH TEMPERATURES BELOW NORMAL ACROSS THE
BOARD.

MUCH LIKE THE TEMPERATURE READINGS...THE PRECIPITATION "DEPARTURE
FROM AVERAGES" DO NOT TRULY REFLECT THE ACTUAL CONDITIONS OBSERVED
DURING THE MONTH. WHEN STRICTLY LOOKING AT THE DAILY CONDITIONS...IT
WAS A RATHER DRY MONTH...WITH JUST LIGHT AMOUNTS OF RAINFALL
SCATTERED ABOUT EVERY COUPLE DAYS (COMPLIMENTS OF AFOREMENTIONED
COOL AND DRY NORTHWEST FLOW). HOWEVER...A COUPLE BOUTS OF HEAVIER
RAIN (ONE AROUND MID MONTH...WITH ANOTHER GOOD SOAKER ON THE 28TH)
...WERE ABLE TO PUSH MOST OF THE SITES TO ABOVE NORMAL PRECIPITATION.

FINALLY...WITH THE COLDER THAN NORMAL TEMPERATURES...WE DID SEE SOME
END OF THE SEASON (LETS HOPE) LIGHT SNOW AND FLURRIES ACROSS PARTS
OF THE AREA...WHICH ALL FELL ON THE 16TH. IN TYPICAL MAY
STANDARDS... SNOWFALL AMOUNTS WERE VERY LIGHT...WITH MOST LOCATIONS
SEEING ONLY FLURRIES. THE ONE EXCEPTION WAS ACROSS PORTIONS OF
EASTERN UPPER MICHIGAN...WHICH REPORTED SOME VERY LIGHT ACCUMULATION.

HERE IS A LOOK AT HOW SOME LOCATIONS FARED WITH RESPECT TO THEIR
AVERAGE TEMPERATURES DURING MAY 2009 (MAX...MIN...AND MEAN
VALUES REPRESENT AVERAGE VALUES DURING THE MONTH. NORMAL VALUES USED
TO CALCULATE DEPARTURES ARE FROM THE 30 YEAR PERIOD OF 1971-2000):

                                             SSM     HTL     APN     TVC     GLR*    ALL

MAY MAX 2009                   59.1    65.2     64.7     64.9     62.8     63.3
MAX DEPARTURE             -4.1     -2.0     +0.4      -2.3      -5.0      -2.6

MAY MEAN 2009                48.3    53.1    51.2     52.7      51.1     51.3
MEAN DEPARTURE           -3.0     -0.8    -1.0      -1.9       -3.3       -2.0

MAY MIN 2009                    37.5    41.0    37.6     40.6      39.3     39.2
MIN DEPARTURE              -1.8    +0.3     -2.4      -1.3       -1.7      -1.4

*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 SOME LOCATIONS FARED WITH RESPECT TO LIQUID
PRECIPITATION (RAIN AND MELTED FROZEN PRECIPITATION) DURING MAY 2009
(NORMAL VALUES USED TO CALCULATE DEPARTURES ARE FROM THE 30 YEAR
PERIOD OF 1971-2000):

                                                                     SSM      HTL     APN    TVC*    GLR**

TOTAL PRECIPITATION (IN)                  3.49     2.64      2.90    3.00      3.09
DEPARTURE FROM NORMAL            +0.99   +0.07   +0.29  +0.70    +0.26

*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 SOME LOCATIONS FARED WITH RESPECT TO SNOWFALL
DURING MAY 2009 (NORMAL VALUES USED TO CALCULATE DEPARTURES ARE
FROM THE 30 YEAR PERIOD OF 1971-2000):

                                                                SSM     HTL     APN    TVC*    GLR**

TOTAL SNOWFALL (IN)                       0.3       0.0         T        0.0         0.0
DEPARTURE FROM NORMAL         +0.1     -0.3      -0.3     -0.1        -1.0

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

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

HERE ARE SOME OF THE MORE NOTABLE WEATHER EVENTS DURING MAY
2009:

-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 OBSERVED.

-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
TEMPERATURE WAS REPORTED 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...PRECIPITATION...AND SNOWFALL RECORDS
THAT OCCURRED DURING MAY 2009:

-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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