Alert archive / Georgia / Tornado Warnings in 2011
Tornado Warning 15, NWS Jacksonville, FL
NWS Jacksonville, FL issued this tornado warning at Apr 28, 2011, 12:45 PM EDT for Clinch County, Echols County, Georgia; Columbia County, Hamilton County, Florida. It was in force for 30 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Apr 28, 2011, 12:45 PM EDT (16:45 UTC)
- Expired
- Apr 28, 2011, 1:15 PM EDT
- In force
- 30 min
- Issued by
- NWS Jacksonville, FL
- Area
- Storm-based polygon
Counties Columbia County, FL, Hamilton 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 28, 9:47 AM EDT | Severe Thunderstorm Watch | SPC | 9 hr |
The nearest sounding before it
Jacksonville, FL (KJAX), launched 12:00Z, 4.8 hours before the alert went out and 106 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
- 1394 J/kg
- Mixed-layer CIN
- -52 J/kg
- Mixed-layer LCL
- 817 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- 161 m²/s²
- 0-3 km storm-relative helicity
- 154 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 3.5
The text
As transmitted, in the capitals the NWS used until 2016.
447 WFUS52 KJAX 281645 TORJAX FLC023-047-GAC065-101-281715- /O.NEW.KJAX.TO.W.0015.110428T1645Z-110428T1715Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE JACKSONVILLE FL 1245 PM EDT THU APR 28 2011 THE NATIONAL WEATHER SERVICE IN JACKSONVILLE HAS ISSUED A * TORNADO WARNING FOR... SOUTHERN CLINCH COUNTY IN SOUTHEAST GEORGIA SOUTHEASTERN ECHOLS COUNTY IN SOUTHEAST GEORGIA EXTREME NORTHERN COLUMBIA COUNTY IN NORTHERN FLORIDA NORTHEASTERN HAMILTON COUNTY IN NORTHERN FLORIDA * UNTIL 115 PM EDT * AT 1245 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE TRACKING A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 14 MILES WEST OF NEEDMORE...OR 7 MILES NORTHEAST OF JASPER...MOVING EAST AT 15 MPH. * OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO NEEDMORE. PRECAUTIONARY/PREPAREDNESS ACTIONS... SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS. IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS. REPORT SEVERE WEATHER OR DAMAGE TO THE NEAREST LAW ENFORCEMENT AGENCY OR YOUR COUNTY EMERGENCY MANAGEMENT. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 500 PM EDT THURSDAY AFTERNOON FOR NORTHEASTERN FLORIDA AND SOUTHEAST GEORGIA. LAT...LON 3080 8270 3059 8261 3052 8295 3066 8301 TIME...MOT...LOC 1645Z 251DEG 15KT 3061 8288 $$ PRESNALL
1 follow-up statement
405 WWUS52 KJAX 281702 SVSJAX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE JACKSONVILLE FL 102 PM EDT THU APR 28 2011 FLC023-047-GAC065-101-281715- /O.CON.KJAX.TO.W.0015.000000T0000Z-110428T1715Z/ CLINCH GA-ECHOLS GA-COLUMBIA FL-HAMILTON FL- 102 PM EDT THU APR 28 2011 ...A TORNADO WARNING REMAINS IN EFFECT UNTIL 115 PM EDT FOR NORTHEASTERN HAMILTON...EXTREME NORTHERN COLUMBIA...SOUTHEASTERN ECHOLS AND SOUTHERN CLINCH COUNTIES... AT 101 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO TRACK A TORNADO. THIS TORNADO WAS LOCATED 10 MILES WEST OF NEEDMORE...OR 11 MILES NORTHEAST OF JASPER...MOVING EAST AT 15 MPH. OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO NEEDMORE. PRECAUTIONARY/PREPAREDNESS ACTIONS... IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING QUARTER SIZE HAIL AND DESTRUCTIVE STRAIGHT LINE WINDS. SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS. IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS. REPORT SEVERE WEATHER OR DAMAGE TO THE NEAREST LAW ENFORCEMENT AGENCY OR YOUR COUNTY EMERGENCY MANAGEMENT. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 500 PM EDT THURSDAY AFTERNOON FOR NORTHEASTERN FLORIDA AND SOUTHEAST GEORGIA. && LAT...LON 3053 8289 3069 8295 3080 8270 3059 8261 TIME...MOT...LOC 1701Z 251DEG 15KT 3063 8281 $$ PRESNALL
The office that day
Everything else NWS Jacksonville, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 28, 8:41 AM EDT | Special Weather Statement | JAX | Appling, Bacon | 49 min |
| Apr 28, 8:44 AM EDT | Special Weather Statement | JAX | Atkinson, Clinch | 46 min |
| Apr 28, 9:22 AM EDT | Special Weather Statement | JAX | Clinch, Pierce, Ware | 38 min |
| Apr 28, 9:32 AM EDT | Severe Thunderstorm Warning | JAX | Clinch, Echols | 58 min |
| Apr 28, 10:27 AM EDT | Special Weather Statement | JAX | Atkinson, Coffee, Jeff Davis | 48 min |
| Apr 28, 10:36 AM EDT | Special Weather Statement | JAX | Clinch, Ware | 39 min |
| Apr 28, 11:10 AM EDT | Special Weather Statement | JAX | Lanier | 65 min |
| Apr 28, 11:21 AM EDT | Severe Thunderstorm Warning | JAX | Atkinson, Bacon, Clinch, Coffee, Echols, Ware | 54 min |
| Apr 28, 11:29 AM EDT | Special Weather Statement | JAX | Appling, Jeff Davis | 61 min |
| Apr 28, 11:58 AM EDT | Severe Thunderstorm Warning | JAX | Echols | 32 min |
| Apr 28, 12:11 PM EDT | Severe Thunderstorm Warning | JAX | Clinch, Echols | 20 min |
| Apr 28, 12:14 PM EDT | Special Weather Statement | JAX | Atkinson, Coffee, Jeff Davis | 46 min |
| Apr 28, 12:20 PM EDT | Special Weather Statement | JAX | Appling | 40 min |
| Apr 28, 12:30 PM EDT | Severe Thunderstorm Warning | JAX | Clinch, Echols | 30 min |
| Apr 28, 12:38 PM EDT | Special Weather Statement | JAX | Appling | 37 min |
| Apr 28, 1:14 PM EDT | Severe Thunderstorm Warning | JAX | Charlton, Clinch, Echols, Ware | 46 min |
| Apr 28, 1:36 PM EDT | Special Weather Statement | JAX | Clinch, Ware | 39 min |
| Apr 28, 1:41 PM EDT | Special Weather Statement | JAX | Coffee | 34 min |
| Apr 28, 2:10 PM EDT | Special Weather Statement | JAX | Bacon | 35 min |
| Apr 28, 2:24 PM EDT | Special Weather Statement | JAX | Bacon, Coffee | 36 min |
| Apr 28, 3:07 PM EDT | Special Weather Statement | JAX | Ware | 38 min |
| Apr 28, 3:11 PM EDT | Special Weather Statement | JAX | Pierce, Wayne | 49 min |
| Apr 28, 3:18 PM EDT | Severe Thunderstorm Warning | JAX | Brantley, Camden, Charlton, Glynn, Ware, Wayne | 42 min |
| Apr 28, 3:25 PM EDT | Special Weather Statement | JAX | Atkinson, Bacon | 50 min |
| Apr 28, 3:37 PM EDT | Tornado Warning | JAX | Brantley, Camden, Charlton, Glynn, Ware, Wayne | 23 min |
| Apr 28, 3:56 PM EDT | Tornado Warning | JAX | Brantley, Camden, Glynn | 34 min |
| Apr 28, 4:06 PM EDT | Special Weather Statement | JAX | Pierce, Wayne | 39 min |
| Apr 28, 4:11 PM EDT | Severe Thunderstorm Warning | JAX | Glynn, Wayne | 19 min |
| Apr 28, 4:38 PM EDT | Special Weather Statement | JAX | Echols | 37 min |
| Apr 28, 5:42 PM EDT | Special Weather Statement | JAX | Ware | 48 min |
| Apr 28, 7:24 PM EDT | Special Weather Statement | JAX | Glynn | 36 min |
| Apr 28, 7:52 PM EDT | Special Weather Statement | JAX | Charlton | 38 min |
| Apr 28, 12:09 PM EDT | Special Weather Statement | JAX | Baker | 36 min |
| Apr 28, 12:40 PM EDT | Severe Thunderstorm Warning | JAX | Hamilton, Suwannee | 21 min |
| Apr 28, 12:54 PM EDT | Severe Thunderstorm Warning | JAX | Hamilton, Suwannee | 51 min |
| Apr 28, 1:42 PM EDT | Severe Thunderstorm Warning | JAX | Hamilton, Suwannee | 63 min |
| Apr 28, 2:48 PM EDT | Special Weather Statement | JAX | Baker, Columbia | 42 min |
| Apr 28, 3:06 PM EDT | Special Weather Statement | JAX | Flagler | 39 min |
| Apr 28, 3:09 PM EDT | Areal Flood Advisory | JAX | Suwannee | 106 min |
| Apr 28, 3:15 PM EDT | Severe Thunderstorm Warning | JAX | Flagler, Putnam | 45 min |
| Apr 28, 3:23 PM EDT | Special Marine Warning | JAX | 63 min | |
| Apr 28, 3:28 PM EDT | Special Weather Statement | JAX | Columbia, Hamilton, Suwannee | 62 min |
| Apr 28, 3:31 PM EDT | Special Marine Warning | JAX | 119 min | |
| Apr 28, 3:34 PM EDT | Areal Flood Advisory | JAX | Flagler, Putnam | 35 min |
| Apr 28, 3:43 PM EDT | Special Weather Statement | JAX | Flagler | 32 min |
| Apr 28, 4:34 PM EDT | Special Weather Statement | JAX | Suwannee | 41 min |
| Apr 28, 5:21 PM EDT | Special Weather Statement | JAX | Gilchrist | 39 min |
| Apr 28, 5:29 PM EDT | Special Weather Statement | JAX | Hamilton, Suwannee | 46 min |
| Apr 28, 5:58 PM EDT | Special Weather Statement | JAX | Columbia | 47 min |
| Apr 28, 6:27 PM EDT | Special Marine Warning | JAX | 2 hr | |
| Apr 28, 6:28 PM EDT | Special Weather Statement | JAX | Gilchrist | 47 min |
| Apr 28, 6:52 PM EDT | Special Weather Statement | JAX | Columbia | 53 min |
| Apr 28, 7:58 PM EDT | Special Weather Statement | JAX | Gilchrist | 32 min |
Nearby
Tornado Warnings in Georgia, 2011Tornado Warnings in Florida, 2011Every tornado warning in 2011Tornadoes in 2011
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.