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FGUS72 KMFL 201325
ESFMFL
FLZ063-066>075-230000-
HYDROLOGIC STATEMENT FOR SOUTH FLORIDA
NATIONAL WEATHER SERVICE MIAMI FL
920 AM EDT FRI APR 20 2007
...SEVERE DROUGHT CONDITIONS REMAIN ACROSS NORTHERN INTERIOR AREAS OF
SOUTH FLORIDA INCLUDING COUNTIES SURROUNDING LAKE OKEECHOBEE...
...MODERATE DROUGHT CONDITIONS REMAIN OVER THE REST OF SOUTH FLORIDA
EXCEPT FOR THE SOUTHERN HALVES OF MIAMI DADE AND MAINLAND MONROE
COUNTIES WHERE IT IS ABNORMALLY DRY...
SOUTH FLORIDA RECEIVED BETWEEN 1 TO 3 INCHES OF RAINFALL DURING THE
EARLY PART OF APRIL...EXCEPT FOR SOUTHEAST PORTIONS OF SOUTH FLORIDA
THAT RECEIVED 4 TO 6 INCHES OF RAINFALL. THIS REDUCED THE RAINFALL
DEFICITS SOMEWHAT ACROSS SOUTH FLORIDA. HOWEVER...THE DEFICITS HAVE
BEEN THE RESULT OF A LONG DRY PERIOD THAT BEGAN EARLY IN 2006 AND
THEREFORE LARGE RAINFALL DEFICITS CONTINUE ACROSS MOST OF SOUTH
FLORIDA.
HERE ARE SOME RAINFALL TOTALS...NORMALS...AND DEPARTURES FROM NORMAL
FOR SOUTH FLORIDA FOR THE DRY SEASON (WHICH NORMALLY EXTENDS FROM
NOVEMBER THROUGH MAY) OF 2006-2007 SO FAR AND FOR THE 15 MONTHS
PERIOD OF JANUARY 1, 2006 TO APRIL 19, 2007.
AIRPORTS DRY SEASON: DRY SEASON : 15 MONTH : 15 MONTH
TOTALS DEPARTURES TOTALS DEPARTURES
MIAMI INTERNATIONAL : 15.41 : 1.62 : 74.84 : 8.02
FORT LAUDERDALE INTERNATIONAL : 10.47 : -4.81 : 54.37 : -17.89
PALM BEACH INTERNATIONAL : 20.25 : 1.63 : 58.87 : -14.39
NAPLES MUNICIPAL AIRPORT : 3.69 : -7.05 : 53.01 : -6.11
SECONDARY OBSERVATION SITES
IMMOKALEE : 7.05 : -3.33 : 46.74 : -14.32
DEVILS GARDEN : 7.03 : -5.45 : 48.07 : -14.09
CLEWISTON : 5.28 : -6.79 : 40.13 : -18.81
BELLE GLADE : 5.09 : -6.89 : 39.09 : -19.93
FLAMINGO RANGER STATION : 8.10 : -4.14 : 49.48 : -10.53
MIAMI BEACH : 13.78 : 1.84 : 68.23 : 10.86
MIAMI INTERNATIONAL AIRPORT AND MIAMI BEACH WERE ABOVE NORMAL FOR
THESE PERIODS BECAUSE OF THE SHORT LIVED HEAVY RAINFALL EVENTS THAT
OCCURRED DURING SEPTEMBER 2006 AND AGAIN IN EARLY APRIL OF 2007.
MIAMI INTERNATIONAL AIRPORT RECEIVED 5.05 INCHES OF RAIN BETWEEN
APRIL 10 AND 12, AND MIAMI BEACH 4.97 INCHES OF RAIN. THE REASON
PALM BEACH INTERNATIONAL AIRPORT IS 1.63 INCHES ABOVE NORMAL FOR THE
DRY SEASON OF 2006-2007 SO FAR IS BECAUSE OF THE 8.22 INCHES OF RAIN
EVENT THAT OCCURRED ON DECEMBER 14 2006. SHORT LIVED RAIN EVENTS ARE
GENERALLY NOT CONDUCIVE TO MITIGATE LONG LIVED DRY PERIODS.
ALTHOUGH THE RECENT RAINFALL ACROSS SOUTH FLORIDA HAS HELPED TO
DECREASE THE KEETCH-BYRAM DROUGHT INDEX TO 550 TO 600 ACROSS
NORTHERN PORTIONS OF SOUTH FLORIDA AND 300 TO 500 OVER THE SOUTHERN
PORTIONS OF SOUTH FLORIDA...THE FIRE DANGER IS STILL IN THE HIGH
DANGER RANGE ACROSS MOST OF THE AREA.
WELLS ACROSS SOUTH FLORIDA ARE ALSO RUNNING BELOW 10 PERCENT OF
NORMAL LEVELS OVER MOST OF SOUTH FLORIDA...EXCEPT FOR THE SOUTHEAST
COAST AREAS WHERE THEY ARE A LITTLE ABOVE NORMAL LEVELS DUE TO THE
RECENT RAINFALL. UNDERGROUND RESERVOIRS ARE ALSO STILL AROUND
ADEQUATE LEVELS FOR THIS TIME OF THE YEAR. THE LEVEL OF LAKE
OKEECHOBEE HAS CONTINUED TO FALL AND IS NOW AROUND 9.9 FEET.
THIS IS ABOUT 4 FEET BELOW NORMAL FOR THIS TIME OF YEAR.
DUE TO THE PROLONGED DRY CONDITIONS ACROSS THE AREA...THE SOUTH
FLORIDA WATER MANAGEMENT DISTRICT HAS INCREASED THE WATER
RESTRICTION USAGE TO AROUND 50 PERCENT FOR THE LAKE OKEECHOBEE
AREA...WITH THE EAST AND WEST COAST METRO AREAS UNDER A 30 PERCENT
RESTRICTION USAGE.
AS A RESULT...THE NORTHERN INTERIOR AREAS AROUND LAKE OKEECHOBEE OF
SOUTH FLORIDA AND PALM BEACH COUNTY REMAIN IN SEVERE DROUGHT
CONDITIONS...WHILE THE REST OF SOUTH FLORIDA REMAINS IN A MODERATE
DROUGHT CONDITION STATUS. THE ONLY EXCEPTION IS OVER THE SOUTHERN
HALVES OF MIAMI DADE AND MAINLAND MONROE COUNTIES WHERE THEY HAVE
BEEN UPGRADED TO ABNORMALLY DRY CONDITION STATUS DUE TO THE RECENT
RAINFALL.
THE FORECAST FOR MAINLAND SOUTH FLORIDA INTO EARLY NEXT WEEK IS FOR
HIGH PRESSURE TO BUILD INTO THE AREA FROM THE NORTH. THIS WILL KEEP
SOUTH FLORIDA MAINLY DRY THROUGH THE PERIOD WITH ONLY A SLIGHT CHANCE
OF RAIN.
THE MAY PRECIPITATION OUTLOOK FROM THE CLIMATE PREDICTION CENTER IS
FOR AN EQUAL CHANCE OF ABOVE OR BELOW NORMAL CONDITIONS. THIS COULD
CONTINUE TO AGGRAVATE THE DRY CONDITIONS ACROSS THE AREA.
STAY TUNED TO NOAA WEATHER RADIO AND OTHER LOCAL MEDIA FOR FURTHER
DETAILS OR UPDATES.
$$
BAXTER
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