RSS FeedsIssued by NWS Detroit/Pontiac, MI
000
CXUS53 KDTX 031528
CLMFNT
CLIMATE REPORT /REPEAT/
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
1130 AM EDT SUN MAY 3 2009
...................................
...THE FLINT CLIMATE SUMMARY FOR THE MONTH OF APRIL 2009...
CLIMATE NORMAL PERIOD 1971 TO 2000
CLIMATE RECORD PERIOD 1893 TO 2009
WEATHER OBSERVED NORMAL DEPART
VALUE DATE(S) VALUE FROM
NORMAL
................................................
TEMPERATURE (F)
RECORD
HIGH 89 04/06/1912
04/29/1895
LOW 3 04/03/1896
HIGHEST 81 04/24
LOWEST 22 04/12
AVG. MAXIMUM 57.1 56.2 0.9
AVG. MINIMUM 36.0 34.6 1.4
MEAN 46.5 45.4 1.1
DAYS MAX >= 90 0 0.0 0.0
DAYS MAX <= 32 0 0.4 -0.4
DAYS MIN <= 32 13 11.1 1.9
DAYS MIN <= 0 0 0.0 0.0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 5.90 1944
MINIMUM 0.62 1942
TOTALS 5.42 3.13 2.29
DAILY AVG. 0.18 0.10 0.08
DAYS >= .01 16
DAYS >= .10 12
DAYS >= .50 5
DAYS >= 1.00 1
GREATEST
24 HR. TOTAL 1.30 04/25 TO 04/26
SNOWFALL (INCHES)
RECORDS
TOTAL 17.3 1975
24 HR TOTAL 2.4
TOTALS 5.0 2.6 2.4
LIQUID EQUIV 0.50 0.30 0.20
SINCE 7/1 72.8 48.3 24.5
LIQUID 7/1 7.28
DAYS >= TRACE 5 2.4 2.6
DAYS >= 1.0 2 0.5 1.5
GREATEST
SNOW DEPTH 4 04/06
24 HR TOTAL 2.4
DEGREE_DAYS
HEATING TOTAL 550 577 -27
SINCE 7/1 6820 6672 148
COOLING TOTAL 6 5 1
SINCE 1/1 6 5 1
.................................................
WIND (MPH)
AVERAGE WIND SPEED 10.7
HIGHEST WIND SPEED/DIRECTION 32/310 DATE 04/03
HIGHEST GUST SPEED/DIRECTION 53/320 DATE 04/09
NUMBER OF DAYS FAIR 11
NUMBER OF DAYS PC 13
NUMBER OF DAYS CLOUDY 6
AVERAGE RH (PERCENT) 66
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 3 MIXED PRECIP 0
HEAVY RAIN 2 RAIN 7
LIGHT RAIN 16 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 0 SNOW 2
LIGHT SNOW 3 SLEET 2
FOG 16 FOG W/VIS <= 1/4 MILE 1
HAZE 5
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
&&
CLIMATE REPORT
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
1130 AM EDT SUN MAY 3 2009
...................................
...THE TRI CITIES CLIMATE SUMMARY FOR THE MONTH OF APRIL 2009...
CLIMATE NORMAL PERIOD 1971 TO 2000
CLIMATE RECORD PERIOD 1898 TO 2009
WEATHER OBSERVED NORMAL DEPART
VALUE DATE(S) VALUE FROM
NORMAL
................................................
TEMPERATURE (F)
RECORD
HIGH 89 04/29/1899
LOW 8 04/01/1923
HIGHEST 80 04/24
LOWEST 25 04/13
AVG. MAXIMUM 55.3 55.0 0.3
AVG. MINIMUM 35.5 35.9 -0.4
MEAN 45.4 45.5 -0.1
DAYS MAX >= 90 0 0.0 0.0
DAYS MAX <= 32 0 0.5 -0.5
DAYS MIN <= 32 11 10.3 0.7
DAYS MIN <= 0 0 0.0 0.0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 6.83 1967
MINIMUM 0.42 1940
TOTALS 5.61 2.82 2.79
DAILY AVG. 0.19 0.09 0.10
DAYS >= .01 12
DAYS >= .10 7
DAYS >= .50 5
DAYS >= 1.00 3
GREATEST
24 HR. TOTAL 2.32 04/25 TO 04/26
SNOWFALL (INCHES)
RECORDS
TOTAL 15.5 1909
TOTALS 2.5 2.2 0.3
LIQUID EQUIV 0.25 0.20 0.05
SINCE 7/1 79.4 44.5 34.9
LIQUID 7/1 7.94
DAYS >= TRACE 2 1.3 0.7
DAYS >= 1.0 1 0.8 0.2
GREATEST
SNOW DEPTH 1 04/06
24 HR TOTAL 2.3
DEGREE_DAYS
HEATING TOTAL 581 587 -6
SINCE 7/1 6850 6759 91
COOLING TOTAL 0 1 -1
SINCE 1/1 0 1 -1
.................................................
WIND (MPH)
AVERAGE WIND SPEED 11.4
HIGHEST WIND SPEED/DIRECTION 32/230 DATE 04/27
HIGHEST GUST SPEED/DIRECTION 41/250 DATE 04/25
NUMBER OF DAYS FAIR 16
NUMBER OF DAYS PC 7
NUMBER OF DAYS CLOUDY 7
AVERAGE RH (PERCENT) 63
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 0 MIXED PRECIP 0
HEAVY RAIN 4 RAIN 9
LIGHT RAIN 14 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 0 SNOW 0
LIGHT SNOW 2 SLEET 0
FOG 9 FOG W/VIS <= 1/4 MILE 1
HAZE 0
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$
=====================================================================
CLIMATOLOGICAL SUMMARY FOR FLINT/SAGINAW - APRIL 2009
...STORMY APRIL BRINGS HEAVY RAINS...SNOW...SEVERE WEATHER AND FLOODING...
...THE 4TH WETTEST APRIL ON RECORD AT BOTH FLINT AND SAGINAW...
...SNOWSTORM EARLY IN THE MONTH MAKES IT THE 11TH SNOWIEST AT FLINT...
***DOMINANT TEMPERATURE/RAIN TREND...NEAR NORMAL/ABOVE NORMAL***
IT WAS YET ANOTHER BUSY MONTH ACROSS SOUTHEAST LOWER MICHIGAN WITH
FREQUENT EPISODES OF RAIN...SNOW AND OUR FIRST BRUSH WITH SEVERE
WEATHER. AFTER A MILD OPENING...IT WAS DOWNHILL QUICKLY DURING THE
FIRST WEEK OF APRIL WITH THE MOST EVENTFUL WEATHER BEING THE SNOWSTORM ON
THE 5-6TH. TEMPERATURES DROPPED WELL BELOW NORMAL AFTER COLD AIR PUSHED
THROUGH THE REGION ON THE 5TH INTO THE 6TH. AFTER...HEAVY SNOW
DEVELOPED NORTH OF A STORM CENTER AS IT TRACKED THROUGH THE NORTHERN
OHIO VALLEY. HEAVIEST SNOW FELL FROM THE DETROIT REGION NORTH UP
THROUGH THE FLINT AND LAPEER AREAS WHERE MAINLY 4.0" TO 7.0" FELL.
FURTHER NORTH (AROUND SAGINAW AND THUMB REGION) SAW GENERALLY AROUND
2.0" TO 4.0" OF SNOW. SOME SNOW AMOUNTS INCLUDED 4.5" AT FLINT...ELBA
IN LAPEER COUNTY...7.0"...NORTH BRANCH 6.0" OF SNOW...DECKERVILLE
(CLOSER TO LAKE HURON) ALSO SAW 6.0"...SAGINAW AND BAD AXE HAD LESS
WITH 2.5" AND 1.5"..RESPECTIVELY. HERE AT THE NWS IN WHITE LAKE...THE MOST
SNOW WAS MEASURED WITH 7.8". THIS STORM PUSHED SNOWFALL TOTALS UP
ACROSS THE BOARD FOR THE MONTH AND SEASON (MORE ON THE SEASON SNOWFALL
AND UPDATED WINTER REVIEW IN EARLY MAY).
THE BELOW NORMAL TEMPERATURES PERSISTED INTO MID MONTH WHEN A STRONG
WARM UP PUSHED READINGS UP INTO THE 70S. ONE OF THE BEST DAYS OF THE
MONTH (AND SPRING) CAME ON THE 18TH...A SATURDAY WITH SUNNY SKIES...
LOW HUMIDITIES AND TEMPERATURES IN THE MID 70S...REMINISCENT OF ST
PATRICK`S DAY. IT DID NOT LAST...HOWEVER...AS A STRONG STORM CENTER
BROUGHT ANOTHER ROUND OF HEAVY RAIN ACROSS THE REGION FROM THE 19TH TO
20TH WHEN GENERALLY HALF INCH TO INCH FELL WITH FLINT RECEIVING JUST
UNDER AN INCH /0.95/.
A PATTERN REVERSAL CAME LATE IN THE MONTH WITH AN UPPER LEVEL RIDGE OF
HIGH PRESSURE BRINGING A STRONG WARMING TREND ACROSS THE EASTERN HALF OF
THE COUNTY. TEMPERATURES ROSE WELL UP INTO THE 80S ACROSS EXTREME
SOUTHEAST MICHIGAN BUT THE ADVANCEMENT OF THE SUMMER-LIKE AIR WAS
CHALLENGED MORE IN THE SAGINAW VALLEY AND THUMB REGION. COOL NORTHEAST
WINDS BUCKED THE WARMTH....ESPECIALLY ALONG AND DOWNWIND FROM LAKE
HURON. WHILE NO RECORD HIGHS WERE SEEN AT FLINT NOR SAGINAW...THESE
AREAS DID MANAGE TWO WARM DAYS AND THAT WAS ON THE 24-25TH WHEN
READINGS POPPED INTO THE MID 70S TO AROUND 80.
THE BIGGEST WEATHER MAKER OF THE MONTH CAME IN THE FORM OF A POTENT
SEVERE WEATHER OUTBREAK DURING THE WARMER WEATHER ON THE 25TH. SEVERE
THUNDERSTORMS ORGANIZED IN LINES AND SURGED ACROSS SOUTHEAST MICHIGAN
SATURDAY AFTERNOON. FOR THE FIRST OUTBREAK OF THE SEASON...THESE LINES
OF STORMS HAD A STRONG PUNCH. THIS WAS ALMOST EXCLUSIVELY A WIND EVENT
WITH NUMEROUS REPORTS OF 50 TO 70 MPH WIND GUSTS. STRONGEST STORMS
MOVED ACROSS CENTRAL AND NORTHERN OAKLAND...LAPEER...MACOMB AND ST
CLAIR COUNTIES. SOME OF THE SAME AREAS HIT WITH LAST JUNE 8TH`S DERECHO
WERE UNDER THE GUN THIS TIME TOO. THE STORMS ALSO BROUGHT HEAVY DRIVING
RAINS WHICH ONLY AGGRAVATED SOME OF THE ALREADY HIGH RIVERS AND
LOWLANDS WITH MORE FLOODING. GENERAL RAINFALLS OF 1.0" - 3.0" INSTIGATED
THEE RIVER FLOODING ON THE SAGINAW RIVER...HURON RIVER...CASS RIVER...
SHIAWASSEE RIVER AND TITTABAWASSEE RIVER. DURING THE LAST WEEK OF APRIL...
SAGINAW RECEIVED A WHOPPING 3.87" OF RAIN...WHILE FLINT MEASURED 2.60".
THIS HEAVY DOSE OF RAIN AT MONTH`S END MADE IT THE FOURTH WETTEST APRIL
AT BOTH FLINT AND SAGINAW. THE LAST TIME IT WAS THIS WET AT FLINT WAS IN
1976 /5.42/...WHILE AT SAGINAW IT WAS IN 1991 /5.61/. ON THE SNOW SIDE
OF THINGS...IT WAS THE 11TH SNOWIEST APRIL FOR FLINT WITH A 5.0" TOTAL.
THE LAST TIME IT WAS AS SNOWY OR MORE WAS A FEW YEARS EARLIER BACK IN
2005 WITH 8.0"...WHILE SAGINAW`S 2.5" OF SNOW WAS JUST ABOUT NORMAL.
DEEDLER
