Alert archive / Florida / Severe Thunderstorm Warnings in 2010
Severe Thunderstorm Warning 5, NWS Miami, FL
NWS Miami, FL issued this severe thunderstorm warning at Feb 24, 2010, 10:46 AM EST for Palm Beach County, Florida. It was in force for 18 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Feb 24, 2010, 10:46 AM EST (15:46 UTC)
- Expired
- Feb 24, 2010, 11:04 AM EST
- In force
- 18 min
- Issued by
- NWS Miami, FL
- Area
- Storm-based polygon
County Palm Beach County, FL
The radar
The Miami radar (KAMX), 115 km from the middle of the area, began a volume at 15:49 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Miami, FL (KMFL), launched 12:00Z, 3.8 hours before the alert went out and 93 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 1030 J/kg
- Mixed-layer CIN
- -1 J/kg
- Mixed-layer LCL
- 511 m above ground
- 0-6 km bulk shear
- 50 kt
- 0-1 km storm-relative helicity
- 47 m²/s²
- 0-3 km storm-relative helicity
- 121 m²/s²
- Significant tornado parameter
- 0.5
- Supercell composite
- 3.8
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Miami, FL wrote its last area forecast discussion before this severe thunderstorm warning went out at Feb 24, 10:46 AM EST, 0 minutes earlier.
Area forecast discussion, Feb 24, 10:46 AM EST, 0 minutes before
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</html>Hazardous weather outlook, Feb 24, 9:00 AM EST, 1 hour 46 minutes before
HAZARDOUS WEATHER OUTLOOK FOR SOUTH FLORIDA NATIONAL WEATHER SERVICE MIAMI FL 900 AM EST WED FEB 24 2010 FLZ063-066>075-168-172>174-250030- GLADES-HENDRY-INLAND PALM BEACH-METRO PALM BEACH-COASTAL COLLIER- INLAND COLLIER-INLAND BROWARD-METRO BROWARD-INLAND MIAMI DADE- METRO MIAMI DADE-MAINLAND MONROE-COASTAL PALM BEACH- COASTAL BROWARD-COASTAL MIAMI DADE-FAR SOUTH MIAMI DADE- 900 AM EST WED FEB 24 2010 ...A FEW STRONG STORMS POSSIBLE THROUGH EARLY EVENING... ...FREEZE WATCH GLADES/HENDRY/INLAND PALM BEACH/INLAND COLLIER FRI MORNING... THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH FLORIDA. .DAY ONE...TODAY AND TONIGHT THUNDERSTORMS: NUMEROUS SHOWERS AND SCATTERED THUNDERSTORMS ARE EXPECTED TO DEVELOP TODAY AND LINGER AROUND INTO THE EARLY EVENING HOURS AS A FRONT SWEEPS ACROSS SOUTH FLORIDA. GUSTY WINDS, SMALL HAIL, BRIEF PERIODS OF HEAVY DOWNPOURS, AND OCCASIONAL LIGHTNING STRIKES ARE CONCERNS WITH THE STORMS TODAY. A FEW STORMS COULD PRODUCE WIND GUSTS OF 40 TO 50 MPH. THE MAIN AREA LIKELY TO BE AFFECTED BY THE STRONGEST ACTIVITY TODAY WILL BE AREAS ALONG AND SOUTH OF A LINE FROM WEST PALM BEACH TO NAPLES. WIND: THE STRONGEST STORMS TODAY COULD PRODUCE WIND GUSTS OF 40 TO 50 MPH. ALSO, WINDS WILL INCREASE ACROSS THE LOCAL WATERS BEHIND A COLD FRONT TONIGHT, WITH SUSTAINED WINDS OF AROUND 25 KNOTS EXPECTED ACROSS THE OFFSHORE GULF AND ATLANTIC WATERS. TORNADOES: THERE IS A REMOTE POSSIBILITY OF AN ISOLATED TORNADO OR WATERSPOUT ACROSS MAINLAND SOUTH FLORIDA AND THE ADJACENT COASTAL WATERS THROUGH THIS EVENING MAINLY ALONG AND SOUTH OF A LINE EXTENDING FROM WEST PALM BEACH TO NAPLES. FLOODING: THERE IS ALSO A SLIGHT RISK OF MINOR STREET FLOODING TODAY DUE TO HEAVY DOWNPOURS FROM SHOWERS OR THUNDERSTORMS. WAVES: SEAS WILL BUILD TO 7 FEET OR HIGHER ACROSS THE OFFSHORE GULF AND ATLANTIC WATERS TONIGHT. TEMPERATURES: MUCH COLDER AIR WILL PUSH INTO THE AREA TONIGHT WITH LOWS EXPECTED TO FALL INTO THE LOWER TO MID 40S OVER THE INTERIOR AND UPPER 40S TO LOWER 50S ELSEWHERE. WIND CHILL READINGS WILL BE IN THE 30S INTERIOR TO THE 40S TO NEAR 50 ELSEWHERE. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY COLD TEMPERATURES ARE EXPECTED THURSDAY NIGHT INTO FRIDAY MORNING. LOWS WILL FALL INTO THE 30S OVER THE INTERIOR TO THE 40S ALONG THE COASTS. FREEZING TEMPERATURES ARE POSSIBLE ACROSS GLADES, HENDRY, INLAND PALM BEACH, AND INLAND COLLIER COUNTIES. A FREEZE WATCH IS NOW IN EFFECT FOR THESE AREAS FRIDAY MORNING FOR THE POTENTIAL OF A FREEZE. POOR MARINE CONDITIONS ARE EXPECTED ON THURSDAY WITH RATHER STRONG NORTHWEST WINDS AND HAZARDOUS SEAS IN THE GULF STREAM AND OFFSHORE GULF WATERS. THERE ARE INDICATIONS THAT LOW PRESSURE MAY DEVELOP OVER THE GULF OF MEXICO ON MONDAY...TRACKING ACROSS NORTH OR CENTRAL FLORIDA MONDAY NIGHT OR TUESDAY WHILE RAPIDLY STRENGTHENING. SHOULD THIS OCCUR...SEVERE WEATHER WOULD BE A DISTINCT POSSIBILITY ACROSS THE LOCAL AREA MONDAY NIGHT OR TUESDAY. .SPOTTER INFORMATION STATEMENT... SPOTTERS ARE REQUESTED TO REPORT ANY STRONG WINDS GUSTS, HAIL OR HIGH RAINFALL AMOUNTS TO THE NATIONAL WEATHER SERVICE. FOR MORE INFORMATION...VISIT THE NATIONAL WEATHER SERVICE IN MIAMI WEBSITE AT WWW.WEATHER.GOV/MIAMI. PS
In the hours before
Special weather statement, Feb 24, 6:38 AM EST, 4 hours 8 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MIAMI FL
638 AM EST WED FEB 24 2010
FLZ075-241215-
MAINLAND MONROE FL-
638 AM EST WED FEB 24 2010
...STRONG THUNDERSTORM MOVING ACROSS CAPE SABLE...
AT 638 AM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 6 MILES EAST OF MIDDLE CAPE SABLE...MOVING
NORTHEAST AT 25 MPH.
THIS STORM WILL AFFECT...
RURAL SOUTHERN MAINLAND MONROE COUNTY
RURAL SOUTHEASTERN MAINLAND MONROE COUNTY
AND SURROUNDING COMMUNITIES.
THE PRIMARY IMPACT WILL BE GUSTY WINDS OF 40 MPH...WHICH CAN DOWN
SMALL TREE LIMBS AND BRANCHES...AND BLOW AROUND UNSECURED SMALL
OBJECTS. SEEK SHELTER IN A SAFE BUILDING UNTIL THE STORM PASSES.
ALSO...THIS STORM IS DEVELOPING IN AN ENVIRONMENT FAVORABLE FOR
TORNADOES.
STAY TUNED TO NOAA WEATHER RADIO AND OTHER LOCAL MEDIA FOR FURTHER
DETAILS OR UPDATES.
LAT...LON 2518 8115 2522 8117 2534 8110 2529 8107
2530 8105 2528 8105 2529 8100 2525 8100
2524 8096 2525 8095 2527 8098 2530 8096
2533 8097 2531 8100 2536 8109 2542 8106
2526 8086 2512 8100
TIME...MOT...LOC 1138Z 242DEG 21KT 2515 8105
GREGORIASpecial weather statement, Feb 24, 9:29 AM EST, 1 hour 17 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MIAMI FL 929 AM EST WED FEB 24 2010 FLZ071-072-241500- INLAND BROWARD COUNTY FL-METRO BROWARD COUNTY FL- 929 AM EST WED FEB 24 2010 ...STRONG THUNDERSTORM MOVING ACROSS ALLIGATOR ALLEY 10 TO 15 MILES WEST OF HIGHWAY 27... AT 927 AM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG THUNDERSTORM 3 MILES SOUTHWEST OF INTERSECTION ALLIGATOR ALLEY AND MIAMI CANAL...MOVING NORTHEAST AT 35 MPH. THIS STORM WILL AFFECT... INTERSECTION ALLIGATOR ALLEY AND MIAMI CANAL... MILE MARKER 30 ON ALLIGATOR ALLEY... EAST TOLL GATE ON ALLIGATOR ALLEY... AND SURROUNDING COMMUNITIES. THE PRIMARY IMPACTS WILL BE UP TO NICKEL SIZED HAIL AND GUSTY WINDS OF 40 TO 50 MPH...WHICH CAN DOWN SMALL TREE LIMBS AND BRANCHES...AND BLOW AROUND UNSECURED SMALL OBJECTS. SEEK SHELTER IN A SAFE BUILDING UNTIL THE STORM PASSES. STAY TUNED TO NOAA WEATHER RADIO AND OTHER LOCAL MEDIA FOR FURTHER DETAILS OR UPDATES. LAT...LON 2629 8061 2618 8037 2598 8066 2610 8080 TIME...MOT...LOC 1427Z 225DEG 29KT 2611 8065 GR
Special weather statement, Feb 24, 9:36 AM EST, 1 hour 10 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MIAMI FL 936 AM EST WED FEB 24 2010 FLZ071-241500- INLAND BROWARD COUNTY FL- 936 AM EST WED FEB 24 2010 ...STRONG THUNDERSTORM MOVING TOWARDS NORTH CENTRAL BROWARD COUNTY... AT 933 AM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG THUNDERSTORM NEAR INTERSECTION ALLIGATOR ALLEY AND MIAMI CANAL...MOVING NORTHEAST AT 30 MPH. THIS STORM WILL MOVE OVER THE NORTH SECTIONS OF HIGHWAY 27 IN BROWARD COUNTY. RADAR INDICATED A HIGH PROBABILITY OF THIS STORM PRODUCING NICKEL SIZE HAIL. THIS STORM WILL AFFECT... MILE MARKER 30 ON ALLIGATOR ALLEY... AND SURROUNDING COMMUNITIES. THE PRIMARY IMPACTS WILL BE UP TO NICKEL SIZED HAIL AND GUSTY WINDS OF 40 TO 50 MPH...WHICH CAN DOWN SMALL TREE LIMBS AND BRANCHES...AND BLOW AROUND UNSECURED SMALL OBJECTS. SEEK SHELTER IN A SAFE BUILDING UNTIL THE STORM PASSES. STAY TUNED TO NOAA WEATHER RADIO AND OTHER LOCAL MEDIA FOR FURTHER DETAILS OR UPDATES. LAT...LON 2633 8057 2632 8033 2610 8057 2619 8071 TIME...MOT...LOC 1434Z 226DEG 27KT 2618 8058 GR
Special weather statement, Feb 24, 9:52 AM EST, 54 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MIAMI FL
952 AM EST WED FEB 24 2010
FLZ067-068-071-072-168-241515-
INLAND PALM BEACH COUNTY FL-METRO PALM BEACH COUNTY FL-
COASTAL PALM BEACH COUNTY FL-INLAND BROWARD COUNTY FL-
METRO BROWARD COUNTY FL-
952 AM EST WED FEB 24 2010
...STRONG THUNDERSTORM MOVING ACROSS NORTH CENTRAL BROWARD COUNTY
AND INTO SOUTHEAST PALM BEACH COUNTY...
AT 949 AM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 11 MILES NORTH OF INTERSECTION I-75 AND U.S.
27...MOVING NORTHEAST AT 35 MPH.
THIS STORM WILL AFFECT...
PARKLAND...
SOUTH COUNTY REGIONAL PARK...
AND SURROUNDING COMMUNITIES.
THE PRIMARY IMPACTS WILL BE UP TO PEA TO NICKEL SIZED HAIL AND
GUSTY WINDS OF 40 TO 50 MPH...WHICH CAN DOWN SMALL TREE LIMBS AND
BRANCHES...AND BLOW AROUND UNSECURED SMALL OBJECTS. SEEK SHELTER IN
A SAFE BUILDING UNTIL THE STORM PASSES.
STAY TUNED TO NOAA WEATHER RADIO AND OTHER LOCAL MEDIA FOR FURTHER
DETAILS OR UPDATES.
LAT...LON 2673 8024 2659 8006 2636 8012 2618 8046
2630 8059
TIME...MOT...LOC 1451Z 220DEG 34KT 2632 8046
GRLocal storm report, Feb 24, 10:44 AM EST, 2 minutes before
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</html>The office that day
Everything else NWS Miami, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 24, 2:44 AM EST | Dense Fog Advisory | MFL | Broward, Collier, Glades, Hendry, Miami-Dade, Monroe and 1 more | 6 hr |
| Feb 24, 4:28 AM EST | Freeze Watch | MFL | Collier, Glades, Hendry, Palm Beach | 24 hr |
| Feb 24, 4:50 AM EST | Fire Weather Watch | MFL | Broward, Miami-Dade, Palm Beach | 11 hr |
| Feb 24, 6:38 AM EST | Special Weather Statement | MFL | Monroe | 37 min |
| Feb 24, 9:06 AM EST | Small Craft Advisory | MFL | 43 hr | |
| Feb 24, 9:29 AM EST | Special Weather Statement | MFL | Broward | 31 min |
| Feb 24, 9:36 AM EST | Special Weather Statement | MFL | Broward | 24 min |
| Feb 24, 9:52 AM EST | Special Weather Statement | MFL | Palm Beach | 23 min |
| Feb 24, 10:13 AM EST | Special Marine Warning | MFL | 62 min | |
| Feb 24, 10:19 AM EST | Severe Thunderstorm Warning | MFL | Palm Beach | 26 min |
| Feb 24, 10:26 AM EST | Special Marine Warning | MFL | 94 min | |
| Feb 24, 10:47 AM EST | Special Weather Statement | MFL | Hendry | 43 min |
| Feb 24, 11:10 AM EST | Special Marine Warning | MFL | 50 min | |
| Feb 24, 11:20 AM EST | Special Marine Warning | MFL | 55 min | |
| Feb 24, 11:21 AM EST | Special Weather Statement | MFL | Palm Beach | 39 min |
| Feb 24, 11:53 AM EST | Severe Thunderstorm Warning | MFL | Palm Beach | 24 min |
| Feb 24, 1:23 PM EST | Severe Thunderstorm Warning | MFL | Miami-Dade | 22 min |
| Feb 24, 1:24 PM EST | Special Weather Statement | MFL | Glades | 51 min |
| Feb 24, 1:50 PM EST | Special Weather Statement | MFL | Broward | 40 min |
| Feb 24, 1:56 PM EST | Special Marine Warning | MFL | 64 min | |
| Feb 24, 2:19 PM EST | Special Weather Statement | MFL | Broward | 26 min |
| Feb 24, 2:29 PM EST | Special Weather Statement | MFL | Palm Beach | 46 min |
| Feb 24, 2:36 PM EST | Special Marine Warning | MFL | 54 min | |
| Feb 24, 2:36 PM EST | Severe Thunderstorm Warning | MFL | Glades | 39 min |
| Feb 24, 3:04 PM EST | Special Weather Statement | MFL | Martin | 26 min |
| Feb 24, 3:06 PM EST | Special Marine Warning | MFL | 54 min | |
| Feb 24, 3:20 PM EST | Special Weather Statement | MFL | Palm Beach | 40 min |
| Feb 24, 4:07 PM EST | Red Flag Warning | MFL | Broward, Miami-Dade, Palm Beach | 27 hr |
| Feb 24, 5:11 PM EST | Special Weather Statement | MFL | Martin | 34 min |
| Feb 24, 5:20 PM EST | Special Weather Statement | MFL | Broward | 40 min |
| Feb 24, 5:23 PM EST | Severe Thunderstorm Warning | MFL | Broward, Palm Beach | 21 min |
| Feb 24, 5:30 PM EST | Special Marine Warning | MFL | 60 min | |
| Feb 24, 5:31 PM EST | Special Weather Statement | MFL | Palm Beach | 44 min |
Nearby
Severe Thunderstorm Warnings in Florida, 2010Every severe thunderstorm warning in 2010
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.