Alert archive / Florida / Tornado Warnings in 2011
Tornado Warning 18, NWS Jacksonville, FL
NWS Jacksonville, FL issued this tornado warning at Sep 5, 2011, 5:41 PM EDT for Columbia County, Hamilton County, Suwannee County, Florida; Echols County, Georgia. It was in force for 34 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
- Sep 5, 2011, 5:41 PM EDT (21:41 UTC)
- Expired
- Sep 5, 2011, 6:15 PM EDT
- In force
- 34 min
- Issued by
- NWS Jacksonville, FL
- Area
- Storm-based polygon
Counties Columbia County, FL, Hamilton County, FL, Suwannee County, FL, Echols County, GA
The nearest sounding before it
Jacksonville, FL (KJAX), launched 12:00Z, 9.7 hours before the alert went out and 107 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
- 1299 J/kg
- Mixed-layer CIN
- -15 J/kg
- Mixed-layer LCL
- 777 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 52 m²/s²
- 0-3 km storm-relative helicity
- 58 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
624 WFUS52 KJAX 052141 TORJAX FLC023-047-121-GAC101-052215- /O.NEW.KJAX.TO.W.0018.110905T2141Z-110905T2215Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE JACKSONVILLE FL 541 PM EDT MON SEP 5 2011 THE NATIONAL WEATHER SERVICE IN JACKSONVILLE HAS ISSUED A * TORNADO WARNING FOR... SOUTHEASTERN ECHOLS COUNTY IN SOUTHEAST GEORGIA NORTHERN COLUMBIA COUNTY IN NORTHERN FLORIDA EASTERN HAMILTON COUNTY IN NORTHERN FLORIDA NORTHEASTERN SUWANNEE COUNTY IN NORTHERN FLORIDA * UNTIL 615 PM EDT * AT 541 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE TRACKING A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR SUWANNEE SPRINGS...MOVING NORTHEAST AT 35 MPH. * OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO BELMONT AND NEEDMORE. PRECAUTIONARY/PREPAREDNESS ACTIONS... WHEN A TORNADO WARNING IS ISSUED BASED ON DOPPLER RADAR...IT MEANS THAT STRONG ROTATION HAS BEEN DETECTED IN THE STORM. A TORNADO MAY ALREADY BE ON THE GROUND...OR IS EXPECTED TO DEVELOP SHORTLY. IF YOU ARE IN THE PATH OF THIS DANGEROUS STORM...MOVE INDOORS AND TO THE LOWEST LEVEL OF THE BUILDING. STAY AWAY FROM WINDOWS. IF DRIVING...DO NOT SEEK SHELTER UNDER A HIGHWAY OVERPASS. 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. && LAT...LON 3075 8282 3067 8259 3028 8282 3036 8300 TIME...MOT...LOC 2141Z 209DEG 30KT 3040 8285 $$ SHASHY
1 follow-up statement
675 WWUS52 KJAX 052155 SVSJAX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE JACKSONVILLE FL 555 PM EDT MON SEP 5 2011 FLC121-052205- /O.CAN.KJAX.TO.W.0018.000000T0000Z-110905T2215Z/ SUWANNEE FL- 555 PM EDT MON SEP 5 2011 ...THE TORNADO WARNING FOR NORTHEASTERN SUWANNEE COUNTY IS CANCELLED... REPORT SEVERE WEATHER OR DAMAGE TO THE NEAREST LAW ENFORCEMENT AGENCY OR YOUR COUNTY EMERGENCY MANAGEMENT. LAT...LON 3040 8277 3045 8288 3075 8282 3067 8259 TIME...MOT...LOC 2155Z 209DEG 30KT 3050 8278 $$ FLC023-047-GAC101-052215- /O.CON.KJAX.TO.W.0018.000000T0000Z-110905T2215Z/ ECHOLS GA-COLUMBIA FL-HAMILTON FL- 555 PM EDT MON SEP 5 2011 ...A TORNADO WARNING REMAINS IN EFFECT UNTIL 615 PM EDT FOR EASTERN HAMILTON...NORTHERN COLUMBIA AND SOUTHEASTERN ECHOLS COUNTIES... AT 555 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO TRACK A TORNADO. THIS TORNADO WAS LOCATED NEAR BELMONT...OR 9 MILES NORTHEAST OF SUWANNEE SPRINGS...MOVING NORTHEAST AT 35 MPH. OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO BELMONT AND 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. && LAT...LON 3040 8277 3045 8288 3075 8282 3067 8259 TIME...MOT...LOC 2155Z 209DEG 30KT 3050 8278 $$ SHASHY
The office that day
Everything else NWS Jacksonville, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 4, 10:14 PM EDT | Special Weather Statement | JAX | Gilchrist | 46 min |
| Sep 4, 11:03 PM EDT | Special Weather Statement | JAX | Columbia, Suwannee, Union | 27 min |
| Sep 5, 4:02 AM EDT | Lake Wind Advisory | JAX | Baker, Bradford, Flagler, Gilchrist, Nassau, Suwannee and 1 more | 16 hr |
| Sep 5, 3:13 PM EDT | Special Weather Statement | JAX | Duval | 27 min |
| Sep 5, 3:16 PM EDT | Special Marine Warning | JAX | 59 min | |
| Sep 5, 3:21 PM EDT | Special Weather Statement | JAX | Marion | 39 min |
| Sep 5, 3:30 PM EDT | Special Weather Statement | JAX | Saint Johns | 45 min |
| Sep 5, 4:00 PM EDT | Severe Thunderstorm Warning | JAX | Hamilton, Suwannee | 45 min |
| Sep 5, 4:16 PM EDT | Special Weather Statement | JAX | Putnam | 44 min |
| Sep 5, 4:18 PM EDT | Special Marine Warning | JAX | 27 min | |
| Sep 5, 4:38 PM EDT | Special Marine Warning | JAX | 82 min | |
| Sep 5, 4:52 PM EDT | Special Weather Statement | JAX | Alachua, Baker, Columbia, Union | 38 min |
| Sep 5, 5:17 PM EDT | Special Weather Statement | JAX | Columbia, Hamilton, Suwannee | 43 min |
| Sep 5, 5:27 PM EDT | Special Weather Statement | JAX | Baker | 48 min |
| Sep 5, 5:34 PM EDT | Severe Thunderstorm Warning | JAX | Columbia, Hamilton, Suwannee | 41 min |
| Sep 5, 5:58 PM EDT | Severe Thunderstorm Warning | JAX | Alachua, Bradford, Columbia, Gilchrist, Suwannee, Union | 47 min |
| Sep 5, 6:14 PM EDT | Tornado Warning | JAX | Columbia, Hamilton | 31 min |
| Sep 5, 6:20 PM EDT | Special Weather Statement | JAX | Baker | 40 min |
| Sep 5, 6:42 PM EDT | Severe Thunderstorm Warning | JAX | Alachua, Baker, Bradford, Columbia, Union | 32 min |
| Sep 5, 7:05 PM EDT | Special Weather Statement | JAX | Marion | 40 min |
| Sep 5, 7:59 PM EDT | Severe Thunderstorm Warning | JAX | Columbia, Hamilton, Suwannee | 46 min |
| Sep 5, 2:52 PM EDT | Special Weather Statement | JAX | Brantley | 53 min |
| Sep 5, 3:08 PM EDT | Special Weather Statement | JAX | Coffee, Jeff Davis | 67 min |
| Sep 5, 3:19 PM EDT | Special Weather Statement | JAX | Camden, Glynn | 26 min |
| Sep 5, 3:33 PM EDT | Special Weather Statement | JAX | Wayne | 42 min |
| Sep 5, 3:49 PM EDT | Special Weather Statement | JAX | Glynn | 26 min |
| Sep 5, 4:20 PM EDT | Special Weather Statement | JAX | Atkinson, Coffee | 40 min |
| Sep 5, 4:37 PM EDT | Severe Thunderstorm Warning | JAX | Atkinson, Clinch, Echols | 23 min |
| Sep 5, 4:59 PM EDT | Severe Thunderstorm Warning | JAX | Atkinson, Clinch, Ware | 31 min |
| Sep 5, 5:23 PM EDT | Severe Thunderstorm Warning | JAX | Appling, Atkinson, Bacon, Coffee, Jeff Davis, Ware | 52 min |
| Sep 5, 6:18 PM EDT | Special Weather Statement | JAX | Clinch | 27 min |
Nearby
Tornado Warnings in Florida, 2011Tornado Warnings in Georgia, 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.