Alert archive / Florida / Severe Thunderstorm Warnings in 2014
Severe Thunderstorm Warning 16, NWS Jacksonville, FL
NWS Jacksonville, FL issued this severe thunderstorm warning at Feb 21, 2014, 11:35 AM EST for Alachua County, Clay County, Putnam County, Florida. It was in force for 40 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
- Feb 21, 2014, 11:35 AM EST (16:35 UTC)
- Expired
- Feb 21, 2014, 12:15 PM EST
- In force
- 40 min
- Issued by
- NWS Jacksonville, FL
- Area
- Storm-based polygon
Counties Alachua County, FL, Clay County, FL, Putnam County, FL
The radar
The Jacksonville radar (KJAX), 86 km from the middle of the area, began a volume at 16:37 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Feb 21, 6:39 AM EST | Severe Thunderstorm Watch | SPC | 9 hr |
The nearest sounding before it
Jacksonville, FL (KJAX), launched 12:00Z, 4.6 hours before the alert went out and 87 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
- 968 J/kg
- Mixed-layer CIN
- -28 J/kg
- Mixed-layer LCL
- 609 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 137 m²/s²
- 0-3 km storm-relative helicity
- 150 m²/s²
- Significant tornado parameter
- 0.5
- Supercell composite
- 4.3
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 Feb 21, 10:08 AM EST, 1 hour 27 minutes earlier.
Area forecast discussion, Feb 21, 10:08 AM EST, 1 hour 27 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE JACKSONVILLE FL 1008 AM EST FRI FEB 21 2014 ...SEVERE STORMS ONGOING OVER SE GA... .UPDATE...A PRE-FRONTAL SQUALL LINE OF SEVERE STORMS WAS TREKKING RAPIDLY EASTWARD OVER SE GA WITH SPEEDS 40-50 MPH. BOWING LINE SEGMENTS HAVE PRODUCED WIND DAMAGE OVER COFFEE COUNTY. MODERATE ROTATION IN COUPLETS ALONG BOWING SEGMENTS WILL CONTINUE TO SUPPORT AN ISOLATED TORNADO THREAT. EXTENDED THE SEVERE TSTORM WATCH EASTWARD FOR ALL OF SE GA AND TO INCLUDE NASSAU COUNTY. WILL LIKELY NEED TO ADD MORE NE FL COUNTIES TO THE WATCH AS THE LINE MOVES FARTHER EAST. && .AVIATION... DETERIORATING CONDITIONS TO MVFR EXPECTED AT ALL SITES AS SQUALL LINE BLOWS THROUGH GENERALLY BETWEEN 17Z-21Z TODAY. STRONG LOW LEVEL JET OF 40-45 KTS FROM SW WILL CONTINUE BUMPY CONDITIONS IN THE LOWER LEVELS. CONTINUED TO SHOW GUSTS TO 40 KT POSSIBLE AS SQUALL LINE MOVES THROUGH. && .MARINE...A MARINE WEATHER STATEMENT WAS ISSUED TO ALERT MARINERS OF THE SQUALL LINE PUSHING OFFSHORE OF THE SE GA COAST BY MIDDAY AND THE FL COAST DURING THE EARLY AFTN HOURS. A SMALL CRAFT EXERCISE CAUTION CONTINUES FOR THE OFFSHORE WATERS DUE TO SOUTHERLY WINDS 15-20 KTS AND SEAS UP TO 6 FT IN THE GULF STREAM. RIP CURRENTS: LOW RISK TODAY AND SAT. && .PRELIMINARY POINT TEMPS/POPS... AMG 70 43 70 47 / 100 10 10 10 SSI 72 52 65 51 / 100 20 10 10 JAX 77 50 70 51 / 100 30 10 10 SGJ 77 56 66 56 / 100 40 20 10 GNV 76 54 73 53 / 100 40 20 10 OCF 79 57 75 56 / 100 40 20 10 && .JAX WATCHES/WARNINGS/ADVISORIES... FL...NONE. GA...NONE. AM...NONE. && ENYEDI/TRABERT/SHASHY/NELSON/SANDRIK/WALKER
Hazardous weather outlook, Feb 21, 6:42 AM EST, 4 hours 53 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE JACKSONVILLE FL 642 AM EST FRI FEB 21 2014 AMZ450-452-454-470-472-474-FLZ020>025-030>033-035>038-040- GAZ132>136-149>154-162>166-221100- ALTAMAHA SOUND GA TO FERNANDINA BEACH FL OUT 20 NM- FERNANDINA BEACH TO ST AUGUSTINE FL OUT 20 NM- ST AUGUSTINE TO FLAGLER BEACH FL OUT 20 NM- ALTAMAHA SOUND GA TO FERNANDINA BEACH FL 20 NM TO 60 NM OFFSHORE- FERNANDINA BEACH TO ST AUGUSTINE FL 20 NM TO 60 NM OFFSHORE- ST AUGUSTINE TO FLAGLER BEACH FL 20 NM TO 60 NM OFFSHORE-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- 642 AM EST FRI FEB 21 2014 ...SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 2 PM... THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST FLORIDA...SOUTHEAST GEORGIA AND THE ADJACENT COASTAL WATERS. .DAY ONE...TODAY AND TONIGHT... PATCHY DENSE FOG THIS MORNING...GENERALLY ALONG AND EAST OF A LINE FROM OCALA TO ST AUGUSTINE. A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR INLAND SOUTHEAST GEORGIA...AND THE SUWANNEE VALLEY OF NORTHEAST FLORIDA UNTIL 2 PM. A STRONG COLD FRONT WILL PUSH ACROSS THE REGION TODAY WITH WIDESPREAD SHOWERS AND SCATTERED THUNDERSTORMS. A FEW STORMS MAY BECOME STRONG TO SEVERE WITH DAMAGING WIND GUSTS POSSIBLE. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY... ISOLATED THUNDERSTORMS WILL BE POSSIBLE ON SUNDAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE REQUESTED AS WATCHES ARE ISSUED TODAY. FOR ADDITIONAL INFORMATION...VISIT THE NATIONAL WEATHER SERVICE IN JACKSONVILLE WEBSITE ON THE INTERNET AT WEATHER.GOV/JAX. THE NATIONAL WEATHER SERVICE IN JACKSONVILLE IS CONSIDERING THE DISCONTINUANCE...OR REDUCED ISSUANCE...OF THIS PRODUCT. PLEASE FORWARD COMMENTARY ON THE HAZARDOUS WEATHER OUTLOOK PRODUCT TO OUR METEOROLOGIST IN CHARGE...SCOTT CORDERO...AT SCOTT.CORDERO@NOAA.GOV. THIS WILL IN NO WAY AFFECT NOAA WEATHER RADIO...BUT ONLY PERTAINS TO THE HAZARDOUS WEATHER OUTLOOK PRODUCT WHICH SUMMARIZES ADVISORIES...WATCHES...AND WARNINGS WHICH ARE ALREADY IN EFFECT.
In the hours before
Local storm report, Feb 21, 11:15 AM EST, 20 minutes before
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</html>Local storm report, Feb 21, 11:29 AM EST, 6 minutes before
PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE JACKSONVILLE FL
1129 AM EST FRI FEB 21 2014
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1030 AM TSTM WND DMG 3 E ODUM 31.66N 81.97W
02/21/2014 WAYNE GA EMERGENCY MNGR
EMA SURVEYED DAMAGE WITH NOTED METAL SHED DAMAGED WITH 10
TO 12 TREES DOWN. DAMAGE AREA ABOUT 100 YARDS WIDE AND
100 YARDS LONG. LOCATED NEAR WILLIAMS ROAD AND TANK ROAD.
TIME ESTIMATED FROM RADAR.
&&
THIS IS AN UPDATE OF THE DAMAGE REPORTED IN CENTRAL WAYNE COUNTY.
ARSSpecial weather statement, Feb 21, 11:31 AM EST, 4 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
1131 AM EST FRI FEB 21 2014
FLZ022>025-030>032-035-036-GAZ165-166-211715-
ALACHUA-BAKER-BRADFORD-CLAY-COASTAL
CAMDEN-COLUMBIA-DUVAL-GILCHRIST-INLAND CAMDEN-NASSAU-UNION-
1131 AM EST FRI FEB 21 2014
...A SIGNIFICANT WEATHER ADVISORY HAS BEEN ISSUED FOR NORTHWESTERN
CLAY...BRADFORD...SOUTHERN BAKER...ALACHUA...SOUTHERN COLUMBIA...
GILCHRIST...UNION...SOUTHERN CAMDEN...DUVAL AND NASSAU COUNTIES FOR
STRONG WINDS AND FUNNEL CLOUDS VALID UNTIL 1215 PM EST...
AT 1131 AM EST NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
STRONG THUNDERSTORMS CENTERED ALONG A LINE EXTENDING FROM 8 MILES
NORTH OF KINGS FERRY TO 6 MILES NORTH OF MACCLENNY TO 17 MILES
NORTHWEST OF BELL...MOVING EAST AT 40 MPH. THESE STRONG THUNDERSTORMS
WILL ALSO AFFECT AREAS AROUND OLUSTEE...HILLIARD...SANDERSON...KINGS
FERRY...MACCLENNY...LULU...GLEN SAINT MARY...CALLAHAN...BRYCEVILLE
AND BELL THROUGH 1215 PM EST. GUSTY WINDS OF 45 TO 55 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. IF FURTHER INTENSIFICATION OCCURS A
WARNING MAY BE REQUIRED.
REPORT DAMAGE TO THE NEAREST LAW ENFORCEMENT AGENCY OR YOUR COUNTY
EMERGENCY MANAGEMENT.
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 200 PM EST FRIDAY
AFTERNOON FOR NORTHEASTERN FLORIDA AND SOUTHEAST GEORGIA.
LAT...LON 2952 8256 2958 8278 2958 8296 2982 8294
2991 8286 2997 8276 3002 8279 3033 8221
3037 8218 3037 8204 3056 8200 3063 8203
3090 8189 3095 8140 3075 8145 3070 8142
3051 8144 3038 8139
TIME...MOT...LOC 1631Z 273DEG 33KT 3089 8181 3036 8209
2989 8304
NELSONThe office that day
Everything else NWS Jacksonville, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 21, 9:26 AM EST | Severe Thunderstorm Warning | JAX | Hamilton, Suwannee | 49 min |
| Feb 21, 9:58 AM EST | Special Weather Statement | JAX | Columbia, Gilchrist, Suwannee | 47 min |
| Feb 21, 10:06 AM EST | Special Weather Statement | JAX | Bradford, Clay, Union | 39 min |
| Feb 21, 10:10 AM EST | Severe Thunderstorm Warning | JAX | Baker, Columbia, Hamilton, Suwannee | 50 min |
| Feb 21, 10:39 AM EST | Special Marine Warning | JAX | 2 hr | |
| Feb 21, 10:49 AM EST | Special Weather Statement | JAX | Columbia, Gilchrist, Suwannee, Union | 41 min |
| Feb 21, 10:51 AM EST | Special Weather Statement | JAX | Bradford, Duval, Nassau | 39 min |
| Feb 21, 10:58 AM EST | Special Marine Warning | JAX | 2 hr | |
| Feb 21, 10:59 AM EST | Special Weather Statement | JAX | Baker | 31 min |
| Feb 21, 11:21 AM EST | Special Weather Statement | JAX | Clay | 39 min |
| Feb 21, 11:31 AM EST | Special Weather Statement | JAX | Alachua, Bradford, Duval, Gilchrist, Nassau, Union | 44 min |
| Feb 21, 11:58 AM EST | Special Weather Statement | JAX | Duval | 47 min |
| Feb 21, 12:10 PM EST | Tornado Warning | JAX | Putnam | 35 min |
| Feb 21, 12:16 PM EST | Special Weather Statement | JAX | Clay | 44 min |
| Feb 21, 12:19 PM EST | Special Weather Statement | JAX | Alachua | 41 min |
| Feb 21, 12:29 PM EST | Special Marine Warning | JAX | 2 hr | |
| Feb 21, 12:43 PM EST | Severe Thunderstorm Warning | JAX | Saint Johns | 47 min |
| Feb 21, 12:48 PM EST | Special Weather Statement | JAX | Clay | 42 min |
| Feb 21, 1:02 PM EST | Special Weather Statement | JAX | Alachua, Clay, Putnam | 43 min |
| Feb 21, 1:28 PM EST | Severe Thunderstorm Warning | JAX | Saint Johns | 17 min |
| Feb 21, 1:34 PM EST | Special Weather Statement | JAX | Flagler | 41 min |
| Feb 21, 1:44 PM EST | Special Weather Statement | JAX | Putnam, Saint Johns | 46 min |
| Feb 21, 2:01 PM EST | Special Weather Statement | JAX | Citrus | 44 min |
| Feb 21, 2:13 PM EST | Severe Thunderstorm Warning | JAX | Flagler, Saint Johns | 47 min |
| Feb 21, 2:21 PM EST | Special Marine Warning | JAX | 54 min | |
| Feb 21, 2:33 PM EST | Special Weather Statement | JAX | Marion | 42 min |
| Feb 21, 3:15 PM EST | Special Weather Statement | JAX | Marion | 45 min |
| Feb 21, 4:02 PM EST | Special Weather Statement | JAX | Marion | 43 min |
| Feb 21, 8:46 AM EST | Severe Thunderstorm Warning | JAX | Bacon, Coffee, Jeff Davis | 44 min |
| Feb 21, 9:05 AM EST | Severe Thunderstorm Warning | JAX | Atkinson, Coffee, Ware | 40 min |
| Feb 21, 9:28 AM EST | Severe Thunderstorm Warning | JAX | Appling, Bacon, Coffee, Jeff Davis, Pierce, Ware and 1 more | 47 min |
| Feb 21, 9:40 AM EST | Special Weather Statement | JAX | Jeff Davis | 35 min |
| Feb 21, 9:45 AM EST | Special Weather Statement | JAX | Pierce | 30 min |
| Feb 21, 10:07 AM EST | Severe Thunderstorm Warning | JAX | Appling, Bacon, Brantley, Glynn, Pierce, Ware and 1 more | 38 min |
| Feb 21, 10:19 AM EST | Tornado Warning | JAX | Charlton, Clinch, Ware | 26 min |
| Feb 21, 10:46 AM EST | Special Weather Statement | JAX | Brantley, Glynn | 44 min |
| Feb 21, 10:56 AM EST | Severe Thunderstorm Warning | JAX | Brantley, Camden, Charlton | 49 min |
| Feb 21, 11:28 AM EST | Special Weather Statement | JAX | Glynn | 32 min |
| Feb 21, 11:47 AM EST | Special Weather Statement | JAX | Glynn | 28 min |
Nearby
Severe Thunderstorm Warnings in Florida, 2014Every severe thunderstorm warning in 2014
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.