Alert archive / Florida / Severe Thunderstorm Warnings in 2009
Severe Thunderstorm Warning 27, NWS Jacksonville, FL
NWS Jacksonville, FL issued this severe thunderstorm warning at Apr 2, 2009, 7:35 PM EDT for Columbia County, Hamilton County, Suwannee County, Florida; Clinch County, Echols County, Georgia. It was in force for 55 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 2, 2009, 7:35 PM EDT (23:35 UTC)
- Expired
- Apr 2, 2009, 8:30 PM EDT
- In force
- 55 min
- Issued by
- NWS Jacksonville, FL
- Area
- Storm-based polygon
Counties Columbia County, FL, Hamilton County, FL, Suwannee County, FL, Clinch County, GA, Echols County, GA
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 2, 3:00 PM EDT | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Jacksonville, FL (KJAX), launched 12:00Z, 11.6 hours before the alert went out and 108 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
- 785 J/kg
- Mixed-layer CIN
- -33 J/kg
- Mixed-layer LCL
- 560 m above ground
- 0-6 km bulk shear
- 57 kt
- 0-1 km storm-relative helicity
- 139 m²/s²
- 0-3 km storm-relative helicity
- 411 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.8
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 Jacksonville, FL wrote its last area forecast discussion before this severe thunderstorm warning went out at Apr 2, 2:30 PM EDT, 5 hours 5 minutes earlier.
Area forecast discussion, Apr 2, 2:30 PM EDT, 5 hours 5 minutes before
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</html>Hazardous weather outlook, Apr 2, 3:37 PM EDT, 3 hours 58 minutes before
HAZARDOUS WEATHER OUTLOOK...UPDATED NATIONAL WEATHER SERVICE JACKSONVILLE FL 337 PM EDT THU APR 2 2009 FLZ020>025-030>033-035>038-040-GAZ132>136-149>154-162>166-031000- HAMILTON-SUWANNEE-COLUMBIA-BAKER-NASSAU-DUVAL-UNION-BRADFORD-CLAY- ST JOHNS-GILCHRIST-ALACHUA-PUTNAM-FLAGLER-MARION-COFFEE- JEFF DAVIS-BACON-APPLING-WAYNE-ATKINSON-WARE-PIERCE-BRANTLEY- INLAND GLYNN-COASTAL GLYNN-ECHOLS-CLINCH-CHARLTON-INLAND CAMDEN- COASTAL CAMDEN- 337 PM EDT THU APR 2 2009 THIS OUTLOOK IS FOR NORTHEAST FLORIDA AND SOUTHEAST GEORGIA. .DAY ONE...TONIGHT... ...TORNADO WATCH IN EFFECT UNTIL 10 PM FOR ALL OF SOUTHEAST GEORGIA AND MUCH OF NORTHEAST FLORIDA... ...FLOOD WATCH IN EFFECT FOR ALL OF SOUTHEAST GEORGIA AND MOST OF NORTHEAST FLORIDA INCLUDING THE ADJACENT COASTAL WATERS THROUGH FRIDAY MORNING... ...AREAL FLOOD WARNINGS IN EFFECT FOR MUCH OF SOUTHEAST GEORGIA AND UPPER SUWANNEE VALLEY REGION... A TORNADO WATCH IS IN EFFECT FOR ALL OF SOUTHEAST GEORGIA AND MOST OF NORTHEAST FLORIDA THROUGH 10 PM THIS EVENING. A VERY DANGEROUS SITUATION IS EXPECTED TO SET UP THIS EVENING WITH NUMEROUS SEVERE THUNDERSTORMS DEVELOPING ACROSS THE SUWANNEE RIVER VALLEY AND ACROSS SOUTHEAST GEORGIA. A SQUALL LINE MOVING THROUGH THE GULF COAST REGION WILL ALSO BE APPROACHING THE AREA THIS EVENING. DAMAGING WINDS AND LARGE HAIL ALONG WITH ISOLATED TORNADOES ARE EXPECTED WITH THE STORMS THIS EVENING. SEVERE THUNDERSTORMS WILL REMAIN POSSIBLE THROUGH THE OVERNIGHT HOURS BUT WILL LIKELY BECOME MORE ISOLATED TOWARD FRIDAY MORNING AS THE COLD FRONT SWEEPS TOWARD THE REGION. A FLOOD WATCH CONTINUES FOR MOST OF THE FORECAST AREA. A FRONTAL BOUNDARY REMAINS STALLED OVER THE AREA. NUMEROUS SHOWERS AND THUNDERSTORMS ARE EXPECTED TO PRODUCE AN ADDITIONAL 2 TO 4 INCHES OF RAIN POSSIBLE BY EARLY FRIDAY MORNING. THIS ADDITIONAL RAINFALL MAY CAUSE LOCALIZED FLOODING. MUCH OF SOUTHEAST GEORGIA AND THE UPPER SUWANNEE VALLEY REGION ARE UNDER AN AREAL FLOOD WARNING. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY... ...FLOOD WARNINGS FOR VARIOUS RIVERS ACROSS SOUTHEAST GEORGIA AND NORTHEAST FLORIDA... RECENT HEAVY RAINFALL OVER PORTIONS OF SOUTHEAST GEORGIA WILL RESULT IN SIGNIFICANT RISES TO AREA RIVERS. FLOOD WARNINGS ARE IN EFFECT FOR THE ALAPAHA RIVER AT STATENVILLE...ALTAMAHA RIVER AT CHARLOTTE... SATILLA RIVER AT ATKINSON...ALTAMAHA RIVER AT BAXLEY...SATILLA RIVER AT WAYCROSS...ST MARYS RIVER AT MACCLENNY. REFER TO THE FLOOD STATEMENT THAT HAS BEEN ISSUED. ANOTHER COLD FRONT WILL APPROACH THE AREA BRINGING A CHANCE OF SHOWERS AND THUNDERSTORMS SUNDAY INTO EARLY MONDAY. STAY TUNED TO THE NATIONAL WEATHER SERVICE FOR UPDATED STATEMENTS AND POSSIBLE ADDITIONAL WARNINGS. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS REQUESTED IN ALL AREAS UNDER THE TORNADO WATCH AND FLOOD WATCH. FOR ADDITIONAL INFORMATION...VISIT THE NATIONAL WEATHER SERVICE IN JACKSONVILLE WEBSITE ON THE INTERNET AT WEATHER.GOV/JAX. PP
In the hours before
Local storm report, Apr 2, 3:10 PM EDT, 4 hours 25 minutes before
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</html>Local storm report, Apr 2, 3:20 PM EDT, 4 hours 15 minutes before
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</html>Special weather statement, Apr 2, 3:20 PM EDT, 4 hours 15 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
320 PM EDT THU APR 2 2009
FLZ035-022000-
GILCHRIST-
320 PM EDT THU APR 2 2009
...A SIGNIFICANT WEATHER ALERT HAS BEEN ISSUED FOR GILCHRIST COUNTY
FOR STRONG WINDS VALID UNTIL 400 PM EDT...
AT 320 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED STRONG
THUNDERSTORMS CENTERED 4 MILES NORTHWEST OF BELL...MOVING EAST AT 40
MPH. THESE STRONG THUNDERSTORMS WILL ALSO AFFECT AREAS AROUND BELL
THROUGH 400 PM EDT. GUSTY WINDS OF 45 TO 55 MPH CAN BE EXPECTED ALONG
WITH POSSIBLE MINOR WIND DAMAGE.
REPORT DAMAGE TO THE NEAREST LAW ENFORCEMENT AGENCY OR YOUR COUNTY
EMERGENCY MANAGEMENT.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM EDT THURSDAY EVENING
FOR NORTHEASTERN FLORIDA AND SOUTHEAST GEORGIA.
LAT...LON 2983 8267 2962 8267 2964 8294 2976 8293
2989 8285
TIME...MOT...LOC 1920Z 263DEG 45KT 2981 8290
ZIBURASpecial weather statement, Apr 2, 3:53 PM EDT, 3 hours 42 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
353 PM EDT THU APR 2 2009
GAZ152>154-165-166-022100-
BRANTLEY-COASTAL CAMDEN-COASTAL GLYNN-INLAND CAMDEN-INLAND GLYNN-
353 PM EDT THU APR 2 2009
...A SIGNIFICANT WEATHER ALERT HAS BEEN ISSUED FOR EASTERN
BRANTLEY...NORTHERN CAMDEN AND GLYNN COUNTIES FOR FUNNEL CLOUDS
VALID UNTIL 500 PM EDT...
AT 353 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED STRONG
THUNDERSTORMS CENTERED ALONG A LINE EXTENDING FROM 4 MILES EAST OF
WAYNESVILLE TO 5 MILES WEST OF WAVERLY...MOVING EAST AT 20 MPH. THESE
STRONG THUNDERSTORMS WILL ALSO AFFECT AREAS AROUND WAYNESVILLE...
THALMANN...WAVERLY...DOCK JUNCTION...BOYS ESTATE...BRUNSWICK...
COUNTRY CLUB ESTATES...ST. SIMONS...SEA ISLAND AND LITTLE ST. SIMMONS
ISLAND THROUGH 500 PM EDT. GUSTY WINDS OF 35 TO 50 MPH CAN BE
EXPECTED ALONG WITH POSSIBLE MINOR DAMAGE. DOPPLER RADAR HAS
INDICATED WEAK ROTATION WITHIN THIS STORM. TORNADOES MAY DEVELOP WITH
LITTLE OR NO ADVANCE WARNING.
REPORT DAMAGE TO THE NEAREST LAW ENFORCEMENT AGENCY OR YOUR COUNTY
EMERGENCY MANAGEMENT.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM EDT THURSDAY EVENING
FOR NORTHEASTERN FLORIDA AND SOUTHEAST GEORGIA.
LAT...LON 3120 8129 3121 8131 3113 8137 3114 8143
3110 8147 3109 8145 3113 8141 3105 8140
3105 8141 3104 8187 3133 8176 3134 8146
3130 8140 3131 8139 3133 8136 3130 8128
3127 8126
TIME...MOT...LOC 1953Z 253DEG 19KT 3124 8172 3109 8179
ENYEDILocal storm report, Apr 2, 5:41 PM EDT, 1 hour 54 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
541 PM EDT THU APR 02 2009
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0445 PM FLOOD BLACKSHEAR 31.30N 82.24W
04/02/2009 PIERCE GA AMATEUR RADIO
AN AMATEUR RADIO OPERATOR REPORTED HEAVY RAIN IN
BLACKSHEAR WITH A NUMBER OF ROADS CLOSED DUE TO HIGH
WATER.
&&
PPSpecial weather statement, Apr 2, 7:18 PM EDT, 17 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
718 PM EDT THU APR 2 2009
FLZ020>022-GAZ162-163-030000-
CLINCH-COLUMBIA-ECHOLS-HAMILTON-SUWANNEE-
718 PM EDT THU APR 2 2009
...A SIGNIFICANT WEATHER ALERT HAS BEEN ISSUED FOR SUWANNEE...
COLUMBIA...HAMILTON...CLINCH AND ECHOLS COUNTIES FOR STRONG WINDS...
HAIL AND EXCESSIVE LIGHTNING VALID UNTIL 800 PM EDT...
AT 711 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED STRONG
THUNDERSTORMS IN A LINE FROM NEAR MOULTRIE GEORGIA SOUTH TO WESTERN
MADISON AND WESTERN TAYLOR COUNTIES. MOVEMENT IS TO THE EAST AT 50
MPH. DAMAGING WINDS ARE POSSIBLE WITH WINDS GUSTING UP TO 60
MPH...ALONG WITH HAIL AND EXCESSIVE LIGHTNING. WIND DAMAGE IS
POSSIBLE ALONG WITH HEAVY RAINFALL THAT WILL PRODUCE PONDING OF
WATER ON ROADWAYS AND MINOR FLOODING OF LOW-LYING AREAS.
SUWANNEE...COLUMBIA...HAMILTON...ECHOLS...AND CLINCH COUNTIES WILL
BE AFFECTED BETWEEN 730 AND 830 PM. SEVERE THUNDERSTORM WARNINGS WILL
LIKELY BE ISSUED SOON.
REPORT DAMAGE TO THE NEAREST LAW ENFORCEMENT AGENCY OR YOUR COUNTY
EMERGENCY MANAGEMENT.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM EDT THURSDAY EVENING
FOR NORTHEASTERN FLORIDA AND SOUTHEAST GEORGIA.
LAT...LON 3102 8262 3055 8249 2999 8258 2998 8285
3015 8320 3042 8317 3062 8325 3060 8313
3079 8312 3086 8296 3109 8295
TIME...MOT...LOC 2311Z 263DEG 45KT 3028 8322
ZIBURAThe office that day
Everything else NWS Jacksonville, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 1, 9:04 PM EDT | Areal Flood Advisory | JAX | Baker, Columbia, Hamilton, Suwannee | 116 min |
| Apr 1, 9:08 PM EDT | Special Weather Statement | JAX | Hamilton | 22 min |
| Apr 2, 5:01 AM EDT | Special Weather Statement | JAX | Hamilton | 44 min |
| Apr 2, 5:12 AM EDT | Small Craft Advisory | JAX | 31 hr | |
| Apr 2, 10:00 AM EDT | River Flood Warning | JAX | Baker, Nassau | 8 days |
| Apr 2, 3:02 PM EDT | Areal Flood Warning | JAX | Hamilton, Suwannee | 4 hr |
| Apr 2, 3:20 PM EDT | Special Weather Statement | JAX | Gilchrist | 40 min |
| Apr 2, 3:29 PM EDT | Areal Flood Warning | JAX | Baker, Columbia, Union | 4 hr |
| Apr 2, 7:16 PM EDT | Areal Flood Warning | JAX | Columbia, Hamilton, Suwannee | 15 hr |
| Apr 2, 7:18 PM EDT | Special Weather Statement | JAX | Columbia, Hamilton, Suwannee | 42 min |
| Apr 2, 7:58 PM EDT | Special Weather Statement | JAX | Baker, Union | 62 min |
| Apr 1, 10:45 PM EDT | Special Weather Statement | JAX | Camden | 30 min |
| Apr 2, 3:27 AM EDT | Special Weather Statement | JAX | Clinch, Echols | 48 min |
| Apr 2, 3:59 AM EDT | Areal Flood Advisory | JAX | Clinch, Echols, Ware | 2 hr |
| Apr 2, 10:33 AM EDT | Areal Flood Warning | JAX | Appling, Atkinson, Bacon, Coffee, Jeff Davis, Ware | 3 hr |
| Apr 2, 10:48 AM EDT | Severe Thunderstorm Warning | JAX | Coffee | 42 min |
| Apr 2, 10:57 AM EDT | Special Weather Statement | JAX | Atkinson | 48 min |
| Apr 2, 11:29 AM EDT | Special Weather Statement | JAX | Atkinson, Coffee, Jeff Davis | 46 min |
| Apr 2, 11:58 AM EDT | Areal Flood Warning | JAX | Pierce, Wayne | 92 min |
| Apr 2, 12:38 PM EDT | Special Weather Statement | JAX | Bacon | 52 min |
| Apr 2, 1:23 PM EDT | Areal Flood Warning | JAX | Appling, Atkinson, Bacon, Clinch, Coffee, Echols and 4 more | 6 hr |
| Apr 2, 3:48 PM EDT | Areal Flood Advisory | JAX | Camden, Glynn | 4 hr |
| Apr 2, 3:53 PM EDT | Special Weather Statement | JAX | Glynn | 67 min |
| Apr 2, 7:53 PM EDT | Special Weather Statement | JAX | Atkinson, Bacon, Coffee | 52 min |
Nearby
Severe Thunderstorm Warnings in Florida, 2009Severe Thunderstorm Warnings in Georgia, 2009Every severe thunderstorm warning in 2009
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.