Alert archive / Florida / Severe Thunderstorm Warnings in 2010
Severe Thunderstorm Warning 29, NWS Tallahassee, FL
NWS Tallahassee, FL issued this severe thunderstorm warning at Apr 8, 2010, 6:29 PM EDT for Jefferson County, Madison County, Florida. It was in force for 46 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
- Apr 8, 2010, 6:29 PM EDT (22:29 UTC)
- Expired
- Apr 8, 2010, 7:15 PM EDT
- In force
- 46 min
- Issued by
- NWS Tallahassee, FL
- Area
- Storm-based polygon
Counties Jefferson County, FL, Madison County, FL
The radar
The Tallahassee radar (KTLH), 62 km from the middle of the area, began a volume at 22:29 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Apr 8, 6:01 PM EDT | Tornado Watch | SPC | 4 hr |
The nearest sounding before it
Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 10.5 hours before the alert went out and 59 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
- 130 J/kg
- Mixed-layer CIN
- -43 J/kg
- Mixed-layer LCL
- 1005 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 71 m²/s²
- 0-3 km storm-relative helicity
- 85 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.6
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 Tallahassee, FL wrote its last area forecast discussion before this severe thunderstorm warning went out at Apr 8, 3:30 PM EDT, 2 hours 59 minutes earlier.
Area forecast discussion, Apr 8, 3:30 PM EDT, 2 hours 59 minutes before
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</html>Hazardous weather outlook, Apr 8, 12:27 PM EDT, 6 hours 2 minutes before
HAZARDOUS WEATHER OUTLOOK...UPDATED NATIONAL WEATHER SERVICE TALLAHASSEE FL 1227 PM EDT THU APR 8 2010 ALZ065>069-FLZ007>019-026>029-034-108-112-114-115-118-127-128-134- GAZ120>131-142>148-155>161-GMZ730-750-755-765-770-775-091015- COFFEE-DALE-HENRY-GENEVA-HOUSTON-INLAND WALTON-CENTRAL WALTON- HOLMES-WASHINGTON-JACKSON-INLAND BAY-CALHOUN-INLAND GULF- INLAND FRANKLIN-GADSDEN-LEON-INLAND JEFFERSON-MADISON-LIBERTY- INLAND WAKULLA-INLAND TAYLOR-LAFAYETTE-INLAND DIXIE-SOUTH WALTON- COASTAL BAY-COASTAL GULF-COASTAL FRANKLIN-COASTAL JEFFERSON- COASTAL WAKULLA-COASTAL TAYLOR-COASTAL DIXIE-QUITMAN-CLAY- RANDOLPH-TERRELL-DOUGHERTY-LEE-WORTH-TURNER-TIFT-BEN HILL-IRWIN- EARLY-MILLER-BAKER-MITCHELL-COLQUITT-COOK-BERRIEN-SEMINOLE- DECATUR-GRADY-THOMAS-BROOKS-LOWNDES-LANIER- APALACHEE BAY OR COASTAL WATERS FROM KEATON BEACH TO OCHLOCKONEE RIVER FL OUT TO 20 NM- COASTAL WATERS FROM APALACHICOLA TO DESTIN FL OUT 20 NM- COASTAL WATERS FROM OCHLOCKONEE RIVER TO APALACHICOLA FL OUT TO 20 NM- COASTAL WATERS FROM SUWANNEE RIVER TO KEATON BEACH OUT 20 NM- WATERS FROM APALACHICOLA TO DESTIN FL FROM 20 TO 60 NM- WATERS FROM SUWANNEE RIVER TO APALACHICOLA FL FROM 20 TO 60 NM- 1227 PM EDT THU APR 8 2010 /1127 AM CDT THU APR 8 2010/ THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST ALABAMA... SOUTHWEST AND SOUTH CENTRAL GEORGIA...THE FLORIDA BIG BEND AND PANHANDLE...AND THE ADJACENT GULF COASTAL WATERS. SLIGHT RISK FOR SEVERE THUNDERSTORMS INTO TONIGHT .DAY ONE...REST OF TODAY AND TONIGHT... A LINE OF THUNDERSTORMS WILL CROSS THE AREA FROM WEST TO EAST DURING THIS AFTERNOON IN TO EVENING AHEAD OF A COLD FRONT. MOST OF THESE STORMS WILL BE CROSSING THE AREA BEFORE SUNDOWN...AND DURING PEAK HEATING WITH INSTABILITY AND SHEAR PROFILES SUPPORTIVE OF THE DEVELOPMENT OF SEVERE STORMS. THE STORMS WILL CROSS SOUTHEAST ALABAMA AND CENTRAL PORTIONS OF THE FLORIDA PANHANDLE UNTIL MID AFTERNOON...CROSS THE EASTERN PANHANDLE...WESTERN BIG BEND AND SOUTHWEST GEORGIA DURING THE AFTERNOON...AND THE EASTERN PORTIONS OF THE FORECAST AREA THIS EVENING. ALTHOUGH THE PRIMARY THREAT WITH THESE STORMS WILL BE DAMAGING WIND GUSTS...A FEW HAILERS AND ISOLATED TORNADOES REMAIN POSSIBLE. THE WEATHER SERVICE ALREADY WARNED FOR A TORNADO AND SEVERE THUNDERSTORM ACROSS SOUTHEAST ALABAMA AT THE LEADING EDGE OF THE CONVECTION AROUND 12 PM EDT. THE BEST WINDOW FOR SEVERE WEATHER WILL REMAIN IN THE AFTERNOON HOURS. THERE IS ALSO A HIGH RISK FOR RIP CURRENTS TODAY ALONG THE FLORIDA BIG BEND AND PANHANDLE BEACHES. ONSHORE WINDS WILL KICK UP TO 15 TO 20 KNOTS TODAY...SO MARINERS ARE ENCOURAGED TO EXERCISE CAUTION. WINDS WILL REMAIN ELEVATED TONIGHT AS WINDS SHIFT TO OFFSHORE BEHIND THE COLD FRONT. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY... A PROLONGED PERIOD OF DRY WEATHER IS ON TAP. OUTSIDE OF FIRE WEATHER ISSUES...THE ONLY WEATHER THREAT WILL BE NOCTURNAL SURGES ACROSS THE GULF WATERS. EAST OT NORTHEAST WINDS WILL KICK UP TO EXERCISE CAUTION RANGE EACH NIGHT AND THEN DROP OFF DURING EACH AFTERNOON. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS REQUESTED WITH THE ISSUANCE OF THE FIRST CONVECTIVE WATCH TODAY. FOR ADDITIONAL INFORMATION...VISIT THE NATIONAL WEATHER SERVICE WEBSITE ON THE INTERNET AT WEATHER.GOV...THEN CLICK ON YOUR AREA OF INTEREST ON THE NATIONAL MAP. 18-WOOL
In the hours before
Special weather statement, Apr 8, 4:40 PM EDT, 1 hour 49 minutes before
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</html>Local storm report, Apr 8, 4:45 PM EDT, 1 hour 44 minutes before
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</html>Local storm report, Apr 8, 4:49 PM EDT, 1 hour 40 minutes before
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</html>Special weather statement, Apr 8, 5:28 PM EDT, 1 hour 1 minute before
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</html>Special weather statement, Apr 8, 5:29 PM EDT, 1 hour before
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</html>Special weather statement, Apr 8, 5:54 PM EDT, 35 minutes before
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</html>The office that day
Everything else NWS Tallahassee, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 8, 2:35 PM EDT | Tornado Warning | TAE | Gadsden, Leon | 25 min |
| Apr 8, 7:10 PM EDT | Severe Thunderstorm Warning | TAE | Madison | 50 min |
| Apr 8, 7:20 PM EDT | Severe Thunderstorm Warning | TAE | Jefferson, Leon | 34 min |
| Apr 8, 2:58 PM EDT | Severe Thunderstorm Warning | TAE | Calhoun, Clay, Early | 47 min |
| Apr 8, 3:03 PM EDT | Tornado Warning | TAE | Calhoun, Clay, Early | 27 min |
| Apr 8, 3:31 PM EDT | Severe Thunderstorm Warning | TAE | Baker, Calhoun, Dougherty, Early | 29 min |
| Apr 8, 4:16 PM EDT | Severe Thunderstorm Warning | TAE | Dougherty, Lee | 29 min |
| Apr 8, 5:43 PM EDT | Severe Thunderstorm Warning | TAE | Brooks, Lanier, Lowndes | 32 min |
| Apr 8, 6:35 PM EDT | Severe Thunderstorm Warning | TAE | Ben Hill, Irwin, Tift | 40 min |
| Apr 8, 11:52 AM EDT | Tornado Warning | TAE | Dale, Houston | 23 min |
| Apr 8, 12:13 PM EDT | Severe Thunderstorm Warning | TAE | Dale, Henry | 47 min |
| Apr 8, 12:55 PM EDT | Tornado Warning | TAE | Coffee | 35 min |
| Apr 8, 1:26 PM EDT | Tornado Warning | TAE | Coffee, Dale | 34 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.