364
FXUS62 KMLB 081903
AFDMLB
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MELBOURNE FL
303 PM EDT THU MAY 8 2025
..NEW KEY MESSAGES, DISCUSSION, MARINE
KEY MESSAGES
ISSUED AT 303 PM EDT THU MAY 8 2025
- THREAT FOR STRONG TO SEVERE STORMS HAS INCREASED FOR LATE THIS
AFTERNOON AND EVENING, WITH A SLIGHT RISK (LEVEL 2 OF 5) FOR
SEVERE WEATHER NORTH AND EAST OF ORLANDO, AND A MARGINAL RISK
(LEVEL 1 OF 5) COVERING MUCH OF THE REST OF EAST CENTRAL
FLORIDA.
- AN ACTIVE WEATHER PATTERN WILL CONTINUE OVER THE NEXT SEVERAL
DAYS, WITH AFTERNOON/EVENING SHOWER AND LIGHTNING STORM CHANCES
CONTINUING, AND SOME STORMS POTENTIALLY BECOMING STRONG TO
SEVERE.
- ABOVE NORMAL RAINFALL FORECAST THROUGH EARLY NEXT WEEK WILL
HELP ALLEVIATE ONGOING DROUGHT CONDITIONS, BUT WILL INCREASE THE
POTENTIAL OF LOCALIZED URBAN AND POOR DRAINAGE FLOODING,
ESPECIALLY ACROSS ANY AREAS THAT RECEIVE REPEATED ROUNDS OF
HEAVY RAINFALL.
DISCUSSION
ISSUED AT 303 PM EDT THU MAY 8 2025
CURRENTLY-TONIGHT...LATEST SATELLITE SHOWING LESS CU DEVELOPMENT
WHERE THE EAST COAST SEA BREEZE HAS FORMED, WITH MORE ALONG AND OUT
AHEAD OF THE WEST COAST BREEZE THROUGH NORTH CENTRAL FL THIS
AFTERNOON WHERE GOES-19 TPW IMAGERY SHOWERS GREATER MOISTURE (PW
VALUES 1.6-1.7"). INITIAL FORMATION OF SHOWERS AND STORMS IS
THEREFORE OCCURRING ACROSS AREAS ACROSS AND NW OF THE I-4
CORRIDOR, WITH GREATEST COVERAGE STILL FORECAST TO BE FOCUSED
ACROSS OR POSSIBLY JUST EAST OF THE I-4 CORRIDOR WHERE SEA
BREEZE/OUTFLOW BOUNDARY MERGERS ARE MORE LIKELY LATE THIS
AFTERNOON. WESTERLY STEERING FLOW WILL THEN TEND TO FOCUS
CONVECTION EASTWARD BACK TOWARD THE COAST OF VOLUSIA/BREVARD
COUNTIES AND OFFSHORE THROUGH THIS EVENING. THE THREAT FOR STRONG
TO SEVERE STORMS HAS INCREASED, AND SPC NOW HAS A SLIGHT RISK
(LEVEL 2 OF 5) FOR SEVERE WEATHER ACROSS AREAS GENERALLY NORTH
AND EAST OF ORLANDO, WITH A MARGINAL RISK (LEVEL 1 OF 5) EXTENDING
ACROSS MUCH OF THE REST OF EAST CENTRAL FL (EXCEPT SOUTHERN
TREASURE COAST). MAIN STORM THREATS WILL BE STRONG TO LOCALLY
DAMAGING WINDS OF 40-60 MPH, HAIL UP TO 1 INCH IN DIAMETER,
FREQUENT LIGHTNING AND LOCALLY HEAVY RAINFALL OF 1-3 INCHES WHICH
MAY LEAD TO BRIEF STANDING WATER ISSUES IN URBAN OR POOR DRAINAGE
AREAS. POPS STILL RANGE UP TO 60-70 PERCENT FROM OSCEOLA/BREVARD
NORTHWARD DECREASING TO 20 PERCENT ALONG THE SOUTHERN TREASURE
COAST.
CONVECTION WILL WIND DOWN AND SHIFT OFFSHORE THROUGH LATE EVENING,
WITH MOSTLY DRY CONDITIONS OVERNIGHT AND LOWS IN THE MID 60S TO LOW
70S.
FRIDAY-SATURDAY...ACTIVE WEATHER PATTERN CONTINUES, WITH SCATTERED
TO NUMEROUS SHOWERS AND STORMS CONTINUING TO DEVELOP EACH AFTERNOON
AND EVENING. GREATEST COVERAGE WILL CONTINUE TO FOCUS NORTH AND
INLAND OF THE TREASURE COAST EACH DAY, WITH RAIN CHANCES UP TO 60-70
PERCENT. W/SW STEERING FLOW WILL PERSIST AND ALSO INCREASE INTO
SATURDAY, INCREASING THE POTENTIAL FOR SHOWERS AND STORMS MOVING
BACK TOWARD THE COAST AND OFFSHORE EACH AFTERNOON/EVENING. THE
THREAT FOR STRONG TO MARGINALLY SEVERE STORMS WILL ALSO CONTINUE,
WITH CURRENTLY A MARGINAL RISK (LEVEL 1 OF 5) FOR SEVERE WEATHER
ACROSS MUCH OF THE AREA FRIDAY AND NORTH OF ORLANDO ON SATURDAY.
TEMPS WILL TEND TO COOL ALOFT TO -10 TO -11C AT 500MB ON FRIDAY TO
-11 TO -12C ON SATURDAY, WITH A SLIGHT INCREASE IN MID LEVEL WINDS
AND SUFFICIENT INSTABILITY TO PRODUCE A THREAT FOR STRONG TO LOCALLY
DAMAGING WINDS, LARGE HAIL AND FREQUENT LIGHTNING. LOCALLY HEAVY
RAINFALL WILL ALSO CONTINUE TO BE POSSIBLE, PRODUCING TOTALS OF 1-3
INCHES IN A SHORT PERIOD OF TIME, AND MINOR STANDING WATER IMPACTS
ACROSS URBAN AND POOR DRAINAGE AREAS. TEMPS REMAIN NEAR TO SLIGHTLY
ABOVE SEASONAL VALUES.
SUNDAY-WEDNESDAY...(MODIFIED PREVIOUS DISCUSSION) MID/UPPER LOW OVER
SOUTHERN LA AND THE NW GULF EARLY IN THE PERIOD WILL SLOWLY WEAKEN
AND LIFT NORTHWARD INTO THE TENNESSEE/OHIO VALLEYS THRU MIDDLE OF
NEXT WEEK. THIS WILL HELP MAINTAIN A SW FLOW ALOFT ACROSS THE REGION
AND PILING UP OF AFTERNOON/EVENING STORMS ACROSS THE EASTERN
PENINSULA EACH DAY. A PERSISTENT PATTERN WILL CONTINUE INTO AT LEAST
TUE WITH HIGH RAIN CHANCES FORECAST (UP TO 60-80%). STRONG TO
MARGINALLY SEVERE STORMS WILL REMAIN IN PLAY WITH AN INCREASING
EXCESSIVE RAINFALL (FLOODING) THREAT. ON WED, POTENTIAL POST-FRONTAL
CONDITIONS WILL DROP POPS (30-50PCT) AS DRIER AIR MOVES IN FROM THE
WEST. CLOUDS AND PRECIP MAY HELP TO LIMIT AFTERNOON HIGHS TO THE L-
U80S. LOWS GENERALLY IN THE 60S.
MARINE
ISSUED AT 303 PM EDT THU MAY 8 2025
TONIGHT-MONDAY...AN ACTIVE WEATHER PATTERN WILL CONTINUE, WITH SEA
BREEZE GENERATED SHOWERS AND STORMS DEVELOPING AND INCREASING IN
COVERAGE EACH AFTERNOON/EVENING, WITH SOME OF THIS ACTIVITY PUSHING
BACK TOWARD THE COAST AND OFFSHORE. SOME STORMS MAY POTENTIALLY
BECOME STRONG TO SEVERE, PRODUCING STRONG WIND GUSTS OF 30-50 KNOTS,
HAIL AND FREQUENT LIGHTNING STRIKES. OUTSIDE OF STORMS, S/SE WINDS
WILL LARGELY PERSIST WITH SPEEDS GENERALLY LESS THAN 15 KNOTS,
BUT MAY INCREASE TO AROUND 15 KNOTS AT TIMES OFFSHORE THIS WEEKEND
INTO EARLY NEXT WEEK. SEAS PRIMARILY 2-4 FT, POSSIBLY BUILDING TO
5 FT OFFSHORE SUNDAY NIGHT INTO MONDAY.
AVIATION
(18Z TAFS)
ISSUED AT 121 PM EDT THU MAY 8 2025
MCO IMPACT:
- 50-70% COVERAGE OF EVENING SHOWERS AND STORMS 21-01Z.
- 30-40% RISK FOR THUNDERSTORM GUSTS OF 35+KT.
ACTIVE EVENING OF SHOWERS AND STORMS APPEARS TO BE ON THE WAY.
HI-RES GUIDANCE CONTINUES TO INDICATE THE HIGHEST COVERAGE OVER
THE ORLANDO AND DAYTONA AREA TERMINALS. STRONG, ERRATIC WIND
GUSTS, COIN-SIZED HAIL, AND FREQUENT LIGHTNING WILL ACCOMPANY THE
STRONGEST STORMS. QUIETER OVERNIGHT, THEN ANOTHER ROUND OF STORMS
OVER SIMILAR AREAS LATE FRIDAY. FAIR WEATHER WINDS BECOMING ESE
ALONG THE IMMEDIATE COASTAL SITES IN THE AFTERNOONS, OTHERWISE SSW
5-12 KT.
PRELIMINARY POINT TEMPS/POPS
DAB 68 88 69 85 / 60 60 60 70
MCO 70 88 71 87 / 60 70 60 70
MLB 70 87 71 86 / 50 60 60 60
VRB 69 88 70 87 / 30 50 40 50
LEE 70 88 71 86 / 40 70 50 70
SFB 69 90 69 87 / 60 70 60 70
ORL 71 89 71 87 / 60 70 60 70
FPR 69 88 69 87 / 30 50 40 50
MLB WATCHES/WARNINGS/ADVISORIES
FL...NONE.
AM...NONE.
DISCUSSION...WEITLICH
AVIATION...HEIL
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