Alert archive / Florida / Severe Thunderstorm Warnings in 2007
Severe Thunderstorm Warning 253, NWS Jacksonville, FL
NWS Jacksonville, FL issued this severe thunderstorm warning at Dec 16, 2007, 12:14 AM EST for Hamilton County, Suwannee 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
- Dec 16, 2007, 12:14 AM EST (05:14 UTC)
- Expired
- Dec 16, 2007, 1:00 AM EST
- In force
- 46 min
- Issued by
- NWS Jacksonville, FL
- Area
- Storm-based polygon
Counties Hamilton County, FL, Suwannee County, FL
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Dec 15, 9:42 PM EST | Tornado Watch | SPC | 8 hr |
The nearest sounding before it
Jacksonville, FL (KJAX), launched 00:00Z, 5.2 hours before the alert went out and 123 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
- 884 J/kg
- Mixed-layer CIN
- -12 J/kg
- Mixed-layer LCL
- 1019 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 199 m²/s²
- 0-3 km storm-relative helicity
- 242 m²/s²
- Significant tornado parameter
- 0.8
- Supercell composite
- 5.4
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 Jacksonville, FL wrote its last area forecast discussion before this severe thunderstorm warning went out at Dec 15, 9:30 PM EST, 2 hours 44 minutes earlier.
Area forecast discussion, Dec 15, 9:30 PM EST, 2 hours 44 minutes before
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</html>Hazardous weather outlook, Dec 15, 10:05 PM EST, 2 hours 9 minutes before
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Special weather statement, Dec 15, 9:42 PM EST, 2 hours 32 minutes before
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</html>Special weather statement, Dec 15, 10:40 PM EST, 1 hour 34 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE JACKSONVILLE FL 1040 PM EST SAT DEC 15 2007 GAZ132>135-149-150-160430- APPLING-ATKINSON-BACON-COFFEE-JEFF DAVIS-WARE- 1040 PM EST SAT DEC 15 2007 ...A SIGNIFICANT WEATHER ALERT HAS BEEN ISSUED FOR EASTERN ATKINSON...NORTHWESTERN WARE...EASTERN COFFEE...APPLING...JEFF DAVIS AND BACON COUNTIES FOR STRONG WINDS VALID UNTIL 1130 PM EST... AT 1040 PM EST NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A LINE OF SHOWERS WITH EMBEDDED STRONG THUNDERSTORMS ALONG A LINE FROM HAZLEHURST TO DOUGLAS AND PEARSON...MOVING EAST AT 40 MPH. THIS STRONG THUNDERSTORM WILL ALSO AFFECT AREAS AROUND WEST GREEN...SNIPESVILLE...DENTON...NICHOLLS...AXSON...MILLWOOD AND BICKLEY THROUGH 1130 PM EST. GUSTY WINDS OF 45 TO 55 MPH CAN BE EXPECTED ALONG WITH POSSIBLE MINOR WIND DAMAGE. THE AREA REMAINS UNDER A TORNADO WATCH. REPORT DAMAGE TO THE NEAREST LAW ENFORCEMENT AGENCY OR YOUR COUNTY EMERGENCY MANAGEMENT. DEESE
Special weather statement, Dec 15, 11:42 PM EST, 32 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE JACKSONVILLE FL 1142 PM EST SAT DEC 15 2007 FLZ020-021-160530- HAMILTON-SUWANNEE- 1142 PM EST SAT DEC 15 2007 ...A SIGNIFICANT WEATHER ALERT HAS BEEN ISSUED FOR WESTERN SUWANNEE AND WESTERN HAMILTON COUNTIES FOR STRONG WINDS VALID UNTIL 1230 AM EST... AT 1142 PM EST NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG THUNDERSTORM CENTERED 21 MILES SOUTHWEST OF DOWLING PARK...OR 2 MILES EAST OF PERRY...MOVING NORTHEAST AT 45 MPH. THIS STRONG THUNDERSTORM WILL ALSO AFFECT AREAS AROUND DOWLING PARK...NEWBURN... BLUE SPRINGS AND SUWANNEE RIVER STATE PARK THROUGH 1230 AM EST. GUSTY WINDS OF 45 TO 55 MPH CAN BE EXPECTED ALONG WITH POSSIBLE MINOR WIND DAMAGE. THE AREA REMAINS UNDER A TORNADO WATCH. REPORT DAMAGE TO THE NEAREST LAW ENFORCEMENT AGENCY OR YOUR COUNTY EMERGENCY MANAGEMENT. PETERSON
Special weather statement, Dec 15, 11:56 PM EST, 18 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE JACKSONVILLE FL 1156 PM EST SAT DEC 15 2007 GAZ150-163-160530- CLINCH-WARE- 1156 PM EST SAT DEC 15 2007 ...A SIGNIFICANT WEATHER ALERT HAS BEEN ISSUED FOR CENTRAL CLINCH AND NORTHERN WARE COUNTIES FOR STRONG WINDS VALID UNTIL 1230 AM... AT 1156 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG THUNDERSTORM CENTERED 12 MILES SOUTHWEST OF ARGYLE...OR 8 MILES SOUTH OF HOMERVILLE...MOVING NORTHEAST AT 40 MPH. THIS STRONG THUNDERSTORM WILL AFFECT AREAS AROUND ARGYLE...MANOR...NEEDHAM... WAYCROSS...SUNNYSIDE AND DEENWOOD THROUGH 1230 AM. GUSTY WINDS OF 40 TO 50 MPH CAN BE EXPECTED ALONG WITH POSSIBLE MINOR WIND DAMAGE. THE AREA REMAINS UNDER A TORNADO WATCH. REPORT DAMAGE TO THE NEAREST LAW ENFORCEMENT AGENCY OR YOUR COUNTY EMERGENCY MANAGEMENT. CARROLL
The office that day
Everything else NWS Jacksonville, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 16, 1:45 AM EST | Freeze Watch | JAX | Baker, Bradford, Gilchrist, Nassau, Suwannee, Union | 25 hr |
| Dec 16, 1:45 AM EST | Freeze Warning | JAX | Baker, Bradford, Gilchrist, Nassau, Suwannee, Union | 31 hr |
| Dec 16, 1:45 AM EST | Lake Wind Advisory | JAX | Baker, Bradford, Flagler, Gilchrist, Nassau, Suwannee and 1 more | 16 hr |
| Dec 16, 2:00 AM EST | Severe Thunderstorm Warning | JAX | Gilchrist | 30 min |
| Dec 16, 2:12 AM EST | Severe Thunderstorm Warning | JAX | Alachua, Bradford, Columbia, Union | 33 min |
| Dec 16, 2:42 AM EST | Tornado Warning | JAX | Alachua, Bradford, Clay, Putnam, Union | 33 min |
| Dec 16, 2:56 AM EST | Severe Thunderstorm Warning | JAX | Alachua, Marion | 49 min |
| Dec 16, 3:10 AM EST | Special Marine Warning | JAX | 2 hr | |
| Dec 16, 3:15 AM EST | Severe Thunderstorm Warning | JAX | Clay, Duval | 45 min |
| Dec 16, 3:18 AM EST | Severe Thunderstorm Warning | JAX | Clay, Saint Johns | 42 min |
| Dec 16, 3:20 AM EST | Severe Thunderstorm Warning | JAX | Putnam, Saint Johns | 40 min |
| Dec 16, 3:28 AM EST | Special Marine Warning | JAX | 2 hr | |
| Dec 16, 4:11 AM EST | Severe Thunderstorm Warning | JAX | Marion | 49 min |
| Dec 16, 2:04 PM EST | Red Flag Warning | JAX | Baker, Bradford, Gilchrist, Nassau, Suwannee, Union | 27 hr |
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.