Alert archive / Florida / Severe Thunderstorm Warnings in 2007
Severe Thunderstorm Warning 180, NWS Tallahassee, FL
NWS Tallahassee, FL issued this severe thunderstorm warning at Dec 15, 2007, 9:58 PM EST for Franklin County, Wakulla County, Florida. It was in force for 47 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
- Dec 15, 2007, 9:58 PM EST (02:58 UTC)
- Expired
- Dec 15, 2007, 10:45 PM EST
- In force
- 47 min
- Issued by
- NWS Tallahassee, FL
- Area
- Storm-based polygon
Counties Franklin County, FL, Wakulla County, FL
The radar
The Tallahassee radar (KTLH), 53 km from the middle of the area, began a volume at 02:59 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
Tallahassee Rgnl, FL (KTLH), launched 00:00Z, 3.0 hours before the alert went out and 54 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
- 641 J/kg
- Mixed-layer CIN
- -8 J/kg
- Mixed-layer LCL
- 544 m above ground
- 0-6 km bulk shear
- 56 kt
- 0-1 km storm-relative helicity
- 306 m²/s²
- 0-3 km storm-relative helicity
- 344 m²/s²
- Significant tornado parameter
- 1.2
- Supercell composite
- 5.7
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 Dec 15, 9:15 PM EST, 43 minutes earlier.
Area forecast discussion, Dec 15, 9:15 PM EST, 43 minutes before
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</html>Hazardous weather outlook, Dec 15, 1:40 PM EST, 8 hours 18 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE TALLAHASSEE FL 140 PM EST SAT DEC 15 2007 ALZ065>069-FLZ007>019-026>029-034-GAZ120>131-142>148-155>161- GMZ730-750-755-765-770-775-161030- COFFEE-DALE-HENRY-GENEVA-HOUSTON-INLAND WALTON-COASTAL WALTON- HOLMES-WASHINGTON-JACKSON-BAY-CALHOUN-GULF-FRANKLIN-GADSDEN-LEON- JEFFERSON-MADISON-LIBERTY-WAKULLA-TAYLOR-LAFAYETTE-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- 140 PM EST SAT DEC 15 2007 /1240 PM CST SAT DEC 15 2007/ ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS THIS AFTERNOON AND EVENING ACROSS THE REGION... 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. .DAY ONE...TODAY AND TONIGHT... A WARM FRONT WILL MOVE THROUGH THE REGION FROM SOUTH TO NORTH EARLY THIS AFTERNOON USHERING IN A MORE MOIST AND UNSTABLE AIRMASS WHILE A STRONG COLD FRONT APPROACHES FROM THE WEST. THE COMBINATION OF THIS MOIST UNSTABLE AIRMASS AND THE STRONG COLD FRONT WILL LEAD TO THE POTENTIAL FOR STRONG TO SEVERE THUNDERSTORMS THIS AFTERNOON AND EVENING. THESE STORMS WILL BE CAPABLE OF PRODUCING DAMAGING STRAIGHT LINE WINDS AND EVEN AN ISOLATED TORNADO OR TWO...ESPECIALLY IN ANY STORMS THAT DEVELOP AHEAD OF THE MAIN SQUALL LINE. SOME STORMS MAY ALSO PRODUCE LOCALLY HEAVY RAINFALL. WINDS WILL INCREASE AND SEAS WILL GRADUALLY BUILD OVER THE COASTAL WATERS THIS AFTERNOON AHEAD OF THE COLD FRONT. WINDS WILL SHIFT TO OFFSHORE BEHIND THE COLD FRONT AND INCREASE SIGNIFICANTLY LATE TONIGHT. SMALL CRAFT ADVISORIES WILL LIKELY BE NEEDED FOR THE ENTIRE MARINE AREA BY TONIGHT. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY... THE FRONT WILL MOVE EAST OF THE REGION BY SUNDAY MORNING. GUSTY NORTHWEST WINDS WILL PERSIST THROUGH THE AFTERNOON AS A STRONG HIGH PRESSURE SYSTEM BUILDS IN BEHIND BRINGING A MUCH COOLER AND DRIER AIRMASS. FREEZING TEMPERATURES ARE EXPECTED ON MONDAY MORNING WITH THE POTENTIAL FOR A HARD FREEZE ON TUESDAY MORNING WITH TEMPERATURES BOTTOMING OUT IN THE MID 20S. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE NECESSARY THIS AFTERNOON AND TONIGHT. SPOTTERS SHOULD CONSIDER THEMSELVES ACTIVATED AT THE FIRST ISSUANCE OF A WATCH OR WARNING. EMERGENCY MANAGERS AND SPOTTERS SHOULD CLOSELY MONITOR THIS DEVELOPING WEATHER SITUATION AND FORWARD ANY SEVERE WEATHER REPORTS TO THE NATIONAL WEATHER SERVICE OFFICE IN TALLAHASSEE. 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. GODSEY
In the hours before
Special weather statement, Dec 15, 8:34 PM EST, 1 hour 24 minutes before
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</html>Special weather statement, Dec 15, 9:16 PM EST, 42 minutes before
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</html>Special weather statement, Dec 15, 9:41 PM EST, 17 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 |
|---|---|---|---|---|
| Dec 15, 7:20 PM EST | Special Marine Warning | TAE | 115 min | |
| Dec 15, 9:05 PM EST | Special Marine Warning | TAE | 115 min | |
| Dec 15, 9:56 PM EST | Special Marine Warning | TAE | 2 hr | |
| Dec 15, 10:26 PM EST | Special Marine Warning | TAE | 64 min | |
| Dec 15, 10:41 PM EST | Coastal Flood Statement | TAE | Dixie, Taylor | 7 hr |
| Dec 15, 10:42 PM EST | Flash Flood Watch | TAE | Dixie, Jefferson, Lafayette, Madison, Taylor | 7 hr |
| Dec 15, 10:44 PM EST | Special Marine Warning | TAE | 2 hr | |
| Dec 15, 11:09 PM EST | Severe Thunderstorm Warning | TAE | Taylor | 51 min |
| Dec 15, 11:57 PM EST | Lake Wind Advisory | TAE | Bay, Calhoun, Dixie, Franklin, Gadsden, Gulf and 10 more | 17 hr |
| Dec 16, 5:12 AM EST | Red Flag Warning | TAE | Bay, Calhoun, Dixie, Franklin, Gadsden, Gulf and 10 more | 38 hr |
| Dec 16, 3:44 PM EST | Freeze Watch | TAE | Bay, Calhoun, Dixie, Franklin, Gadsden, Gulf and 10 more | 23 hr |
| Dec 16, 3:44 PM EST | Freeze Warning | TAE | Bay, Calhoun, Dixie, Franklin, Gadsden, Gulf and 10 more | 17 hr |
| Dec 15, 7:31 PM EST | Severe Thunderstorm Warning | TAE | Early, Miller | 29 min |
| Dec 15, 7:58 PM EST | Severe Thunderstorm Warning | TAE | Baker, Calhoun, Dougherty, Early | 32 min |
| Dec 15, 9:01 PM EST | Severe Thunderstorm Warning | TAE | Turner, Worth | 29 min |
| Dec 15, 9:06 PM EST | Tornado Warning | TAE | Turner, Worth | 23 min |
Nearby
Severe Thunderstorm Warnings in Florida, 2007Every severe thunderstorm warning in 2007
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.