000
NOUS42 KMLB 031154
PNSMLB
FLZ041-044>047-053-054-058-059-064-141-144-147-040000-

PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
654 AM EST WED MAR 3 2010

...THE WINTER SEASON OF 2009-2010 FOR EAST CENTRAL FLORIDA WAS THE
COLDEST ON RECORD IN ALMOST 30 YEARS AND ALSO DISPLAYED WELL ABOVE
NORMAL RAINFALL...

THE CLIMATOLOGICAL WINTER SEASON (DECEMBER-FEBRUARY) OF 2009-2010
SAW THE PASSAGE OF SEVERAL STRONG COLD FRONTS ACROSS EAST CENTRAL
FLORIDA WHICH BROUGHT WELL NEEDED RAINFALL BUT ALSO CREATED EXTENDED
COLD PERIODS...ESPECIALLY DURING JANUARY AND FEBRUARY. THESE STRONG
AND LENGTHY COLD SPELLS GENERATED THE COLDEST WINTER SEASON ON
RECORD SINCE 1981.

THE WINTER SEASON STARTED OUT ON THE WARM SIDE OVERALL IN DECEMBER
WITH AVERAGE TEMPERATURES NEAR TO ABOVE NORMAL AND ONLY A FEW BRIEF
COLD SNAPS. HOWEVER CONDITIONS CHANGED QUICKLY IN THE NEW YEAR AS A
STRONG COLD FRONT ON THE 1ST USHERED IN WELL BELOW NORMAL
TEMPERATURES THAT WERE REINFORCED BY ADDITIONAL COLD AIRMASSES
THROUGH THE MIDDLE OF JANUARY. AVERAGE TEMPERATURE DEPARTURES FROM
THE 2ND THROUGH THE 13TH OF JANUARY WERE AROUND 15 TO 20 DEGREES
BELOW NORMAL WITH SEVERAL NIGHTS OF AT OR BELOW FREEZING
TEMPERATURES OBSERVED. THE WEATHER PATTERN CHANGED BY THE SECOND
HALF OF JANUARY AS TEMPERATURES WARMED TO NEAR TO SLIGHTLY ABOVE
NORMAL VALUES WHICH CONTINUED INTO EARLY FEBRUARY. UNSEASONABLY COLD
TEMPERATURES RETURNED FOR MUCH OF THE REST OF FEBRUARY WITH AVERAGE
TEMPERATURE DEPARTURES FALLING AS LOW AS 10 TO 15 DEGREES...EVEN
NEAR 20 DEGREES BELOW NORMAL IN SOME SPOTS FROM THE 7TH OF THE MONTH
ONWARD.

WINTER SEASON TEMPERATURE DEPARTURES RANGED FROM 3 TO 5 DEGREES
BELOW NORMAL. THIS RANKS THE 2009-2010 WINTER SEASON AS THE 5TH
COLDEST ON RECORD FOR ORLANDO...MELBOURNE AND VERO BEACH...WHILE
DAYTONA BEACH EXPERIENCED THEIR 7TH COLDEST WINTER. FOR ALL FOUR
CLIMATE SITES THE 1957-1958 WINTER STANDS FIRM AS THE COLDEST ON
RECORD FOR EAST CENTRAL FLORIDA. EVEN MORE REMARKABLE WAS THAT THE
COMBINED JANUARY/FEBRUARY AVERAGE TEMPERATURE DEPARTURES RANKED IN
THE TOP 5 COLDEST STARTS TO THE YEAR FOR ALL FOUR CLIMATE SITES AND
EVEN FOR SEVERAL CO-OPERATIVE STATIONS WITH LONG PERIODS OF RECORD
(SEE RANKINGS BELOW).

RANKINGS OF INTEREST DURING THIS PAST WINTER SEASON:

TOP 10 COLDEST WINTER (DECEMBER-FEBRUARY) AVERAGE TEMPERATURE
RANKINGS IN DEGREES FAHRENHEIT AND YEAR OF ENDING SEASON SET:

  DAYTONA           ORLANDO       MELBOURNE     VERO BEACH
 1. 53.3  1958   1. 54.9  1958  1. 57.2  1958  1. 58.1  1958
 2. 53.8  1940   2. 56.0  1977  2. 57.3  1970  2. 58.6  1970
 3. 54.8  1981   3. 57.2  1981  3. 57.5  1977  3. 58.7  1977
 4. 55.1  1977   4. 57.4  1970  4. 58.1  1981  4. 58.8  1981
 5. 55.7  1970   5. 57.6  2010  5. 58.5  2010  5. 59.9  2010
 6. 56.0  1964   6. 57.8  1964  6. 59.1  1969  6. 60.4  1964
 7. 56.4  2010   7. 57.9  1978  7. 59.7  1951  7. 60.6  1969
 8. 56.5  1969   8. 58.1  1963  8. 60.0  1964  8. 61.1  1951
 9. 56.6  1951   9. 58.8  1969  9. 60.3  1963  9. 61.3  2003
10. 56.8  2003  10. 59.0  2003 10. 60.6  1996 10. 61.4  1966

TOP 5 COLDEST JANUARY-FEBRUARY AVERAGE TEMPERATURE RANKINGS IN
DEGREES FAHRENHEIT AND YEAR SET:

  DAYTONA           ORLANDO       MELBOURNE     VERO BEACH
1. 51.4  1958   1. 52.6  1958  1. 55.4  2010* 1. 56.2  1958
2. 52.2  1940   2. 53.8  1977  2. 56.6  1970  2. 56.4  2010
3. 52.9  1977   3. 54.5  2010  3. 56.9  1981  3. 56.8  1978
4. 53.0  1978   4. 56.2  1981  4. 58.3  1968  4. 57.0  1977
5. 53.2  2010   5. 56.3  1978  5. 58.6  1980  5. 57.7  1981

*(NOTE: MELBOURNE 1. ALSO 1977, 1958)

DATA FROM CO-OPERATIVE STATIONS IN EAST CENTRAL FLORIDA:
            JANUARY/FEBRUARY            WINTER
CLERMONT    56.4 - 2ND COLDEST       56.4 - 5TH COLDEST
DELAND      51.3 - COLDEST           54.6 - 2ND
TITUSVILLE  54.2 - 3RD               57.8 - 5TH
SANFORD     54.0 - 4TH               57.1 - 4TH
KISSIMMEE   54.6 - 3RD               57.4 - COLDEST
OKEECHOBEE  55.8 - COLDEST           59.0 - 2ND
FT. PIERCE  57.2 - 2ND               60.5 - 7TH
STUART      56.9 - COLDEST           60.5 - 2ND


NUMBER OF DAYS DURING THE WINTER (DECEMBER-FEBRUARY) WHEN MAX
TEMPERATURE WAS LESS THAN OR EQUAL TO 60 DEGREES FAHRENHEIT:

SITE               DAYS (WINTER 09/10)   RECORD (YEAR OF END SEASON)

DAYTONA BEACH              31                   35 (1958)
ORLANDO                    25                   30 (1958)
MELBOURNE                  19*                  18 (1958 & 1981)
VERO BEACH                 15                   18 (1958 & 1978)

*BROKE OR TIED RECORD

NUMBER OF DAYS DURING THE WINTER (DECEMBER-FEBRUARY) WHEN MIN
TEMPERATURE WAS LESS THAN OR EQUAL TO 32 DEGREES FAHRENHEIT:

SITE               DAYS (WINTER 09/10)   RECORD (YEAR OF END SEASON)

DAYTONA BEACH               9                 20 (1958 & 1940)
ORLANDO                     6                 13 (1958)
MELBOURNE                   8*                 8 (1996 & 2001)
VERO BEACH                  8*                 7 (1981)

*BROKE OR TIED RECORD

AFTER WHAT HAD BECOME A RATHER DRY FALL FOR EAST CENTRAL
FLORIDA...BEGAN TO CHANGE BY DECEMBER. THE CONTINUATION OF EL NINO
CONDITIONS OVER THE EQUATORIAL PACIFIC WATERS WHICH BEGAN DURING THE
SUMMER OF 2009 HELPED EXTEND THE SUBTROPICAL JET STREAM OVER THE
SOUTHERN UNITED STATES. THIS TRANSPORTED SEVERAL FRONTAL SYSTEMS AND
BANDS OF PRECIPITATION ACROSS THE AREA THROUGH DECEMBER INTO
FEBRUARY WITH ABOVE NORMAL RAINFALL OBSERVED ACROSS MUCH OF THE
AREA. ONE OF THESE SYSTEMS COMBINED WITH NEAR FREEZING TEMPERATURES
TO BRING A MIX OF RAIN/SLEET TO SEVERAL LOCATIONS ACROSS THE REGION
ON THE 9TH OF JANUARY FROM THE EARLY MORNING AND INTO THE AFTERNOON.

FROM DECEMBER TO FEBRUARY OF 2009-2010 ORLANDO HAD THEIR 4TH WETTEST
WINTER ON RECORD WITH 13.27 INCHES AND DAYTONA BEACH HAD THEIR 6TH
WETTEST WINTER WITH 13.65 INCHES. THESE VALUES WERE SEVERAL INCHES
BELOW THEIR NUMBER ONE RECORDS OF 23.36 INCHES FOR ORLANDO AND 19.43
INCHES FOR DAYTONA BEACH BOTH SET DURING ANOTHER STRONG EL NINO IN
1997-1998.

BELOW IS A LIST OF OBSERVED PRECIPITATION TOTALS AND RAINFALL
STATISTICS FOR SELECT SITES ACROSS EAST CENTRAL FLORIDA FOR THE
WINTER (DECEMBER-FEBRUARY) OF 2009-2010:

STATION        WINTER 2010      30 YEAR   DEPARTURE     PERCENT OF
                 RAINFALL       NORMAL    FROM NORMAL     NORMAL

DAYTONA BEACH     13.65"         8.58"       5.07"         159%
(DAB)
ORLANDO           13.27"         7.09"       6.18"         187%
(MCO)
MELBOURNE          9.03"         7.28"       1.75"         124%
(MLB)
VERO BEACH         8.66"         7.53"       1.13"         115%
(VRB)
CLERMONT          11.38"         8.09"       3.29"         141%
(CLRF1)
DELAND            14.33"         8.96"       5.37"         160%
(DELF1)
SANFORD           12.41"         8.37"       4.04"         148%
(SFNF1)
TITUSVILLE        13.43"         7.79"       5.64"         172%
(TITF1)
FORT PIERCE        9.61"         7.97"       1.64"         121%
(FPCF1)
STUART            11.50"         9.04"       2.46"         127%
(STRF1)


$$

WEITLICH/DIETZMANN

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