Alert archive / Florida / Severe Thunderstorm Warnings in 2014
Severe Thunderstorm Warning 20, NWS Jacksonville, FL
NWS Jacksonville, FL issued this severe thunderstorm warning at Feb 23, 2014, 2:15 PM EST for Flagler County, Putnam 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 counties it named.
The facts
- Issued
- Feb 23, 2014, 2:15 PM EST (19:15 UTC)
- Expired
- Feb 23, 2014, 2:45 PM EST
- In force
- 30 min
- Issued by
- NWS Jacksonville, FL
- Area
- Storm-based polygon
Counties Flagler County, FL, Putnam County, FL
The radar
The Jacksonville radar (KJAX), 107 km from the middle of the area, began a volume at 19:18 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 nearest sounding before it
Cape Canaveral, FL (KXMR), launched 12:00Z, 7.3 hours before the alert went out and 155 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
- 9 J/kg
- Mixed-layer CIN
- -162 J/kg
- Mixed-layer LCL
- 1113 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- 40 m²/s²
- 0-3 km storm-relative helicity
- 73 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 23, 1:40 PM EST, 35 minutes earlier.
Area forecast discussion, Feb 23, 1:40 PM EST, 35 minutes before
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</html>Hazardous weather outlook, Feb 23, 10:05 AM EST, 4 hours 10 minutes before
HAZARDOUS WEATHER OUTLOOK...UPDATED NATIONAL WEATHER SERVICE JACKSONVILLE FL 1005 AM EST SUN FEB 23 2014 AMZ450-452-454-470-472-474-FLZ020>025-030>033-035>038-040- GAZ132>136-149>154-162>166-241100- 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- 1005 AM EST SUN FEB 23 2014 ...ISOLATED STRONG THUNDERSTORMS WITH HAIL POSSIBLE LATE MORNING THROUGH THE AFTERNOON FOR NORTHEAST FLORIDA... THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST FLORIDA...SOUTHEAST GEORGIA AND THE ADJACENT COASTAL WATERS. .DAY ONE...TODAY AND TONIGHT... SCATTERED THUNDERSTORMS EMBEDDED IN THE WIDESPREAD SHOWER ACTIVITY WILL SPREAD OVER THE AREA AS AN UPPER LEVEL DISTURBANCE MOVES EAST. A FEW OF THE STORMS MAY CONTAIN HAIL ALONG WITH LOCALLY HEAVY DOWNPOURS...WITH THE GREATEST IMPACT EXPECTED ACROSS THE SUWANNEE RIVER VALLEY OF NORTHEAST FLORIDA LATE THIS MORNING THROUGH THE EARLY AFTERNOON. AREAS OF FOG WILL DEVELOP TONIGHT...AND MAY BECOME LOCALLY DENSE AFTER MIDNIGHT. THE FOG WILL IMPACT THE ENTIRE AREA INCLUDING THE NEARSHORE COASTAL WATERS. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY... STRONG COLD FRONTAL PASSAGE ON WEDNESDAY WILL PRODUCE WINDY CONDITIONS WITH SMALL CRAFT ADVISORIES LIKELY ON THE COASTAL WATERS AND POSSIBLE GALE FORCE WIND GUSTS. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT REQUESTED AT THIS TIME. 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
Special weather statement, Feb 23, 11:31 AM EST, 2 hours 44 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
1131 AM EST SUN FEB 23 2014
FLZ035-231700-
GILCHRIST-
1131 AM EST SUN FEB 23 2014
...A SIGNIFICANT WEATHER ADVISORY HAS BEEN ISSUED FOR GILCHRIST
COUNTY FOR SMALL HAIL AND EXCESSIVE LIGHTNING VALID UNTIL NOON EST...
AT 1131 AM EST NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM CENTERED OVER TRENTON...MOVING EAST AT 35 MPH.
THIS STRONG THUNDERSTORM WILL ALSO AFFECT AREAS AROUND TRENTON AND
BELL THROUGH NOON EST. HAIL UP TO THREE QUARTER INCH IN DIAMETER CAN
BE EXPECTED ALONG WITH POSSIBLE MINOR DAMAGE. HEAVY RAINFALL WILL
PRODUCE PONDING OF WATER ON ROADWAYS AND MINOR FLOODING OF LOW-LYING
AREAS.
REPORT DAMAGE TO THE NEAREST LAW ENFORCEMENT AGENCY OR YOUR COUNTY
EMERGENCY MANAGEMENT.
LAT...LON 2984 8284 2983 8267 2957 8266 2959 8279
2960 8291
TIME...MOT...LOC 1631Z 260DEG 29KT 2960 8282
ZIBURASpecial weather statement, Feb 23, 11:55 AM EST, 2 hours 20 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE JACKSONVILLE FL 1155 AM EST SUN FEB 23 2014 FLZ036-231730- ALACHUA- 1155 AM EST SUN FEB 23 2014 ...A SIGNIFICANT WEATHER ADVISORY HAS BEEN ISSUED FOR WESTERN ALACHUA COUNTY FOR SMALL HAIL AND EXCESSIVE LIGHTNING VALID UNTIL 1230 PM EST... AT 1155 AM EST NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG THUNDERSTORM CENTERED 6 MILES SOUTHWEST OF NEWBERRY...MOVING EAST AT 35 MPH. THIS STRONG THUNDERSTORM WILL ALSO AFFECT AREAS AROUND NEWBERRY THROUGH 1230 PM EST. HAIL UP TO THREE QUARTER INCH IN DIAMETER CAN BE EXPECTED ALONG WITH POSSIBLE MINOR DAMAGE. HEAVY RAINFALL WILL PRODUCE PONDING OF WATER ON ROADWAYS AND MINOR FLOODING OF LOW-LYING AREAS. REPORT DAMAGE TO THE NEAREST LAW ENFORCEMENT AGENCY OR YOUR COUNTY EMERGENCY MANAGEMENT. LAT...LON 2975 8244 2956 8243 2955 8265 2976 8266 TIME...MOT...LOC 1655Z 263DEG 31KT 2959 8266 ZIBURA
Special weather statement, Feb 23, 12:50 PM EST, 1 hour 25 minutes before
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</html>Local storm report, Feb 23, 1:04 PM EST, 1 hour 11 minutes before
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</html>Special weather statement, Feb 23, 1:37 PM EST, 38 minutes before
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</html>Special weather statement, Feb 23, 2:02 PM EST, 13 minutes before
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</html>The office that day
Everything else NWS Jacksonville, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 23, 10:29 AM EST | Special Weather Statement | JAX | Gilchrist | 31 min |
| Feb 23, 10:56 AM EST | Special Weather Statement | JAX | Gilchrist | 34 min |
| Feb 23, 11:31 AM EST | Special Weather Statement | JAX | Gilchrist | 29 min |
| Feb 23, 11:41 AM EST | Areal Flood Advisory | JAX | Alachua, Baker, Bradford, Columbia, Gilchrist, Hamilton and 3 more | 77 days |
| Feb 23, 11:55 AM EST | Special Weather Statement | JAX | Alachua | 35 min |
| Feb 23, 12:50 PM EST | Special Weather Statement | JAX | Alachua | 25 min |
| Feb 23, 1:37 PM EST | Special Weather Statement | JAX | Putnam | 23 min |
| Feb 23, 1:57 PM EST | Special Marine Warning | JAX | 2 hr | |
| Feb 23, 2:02 PM EST | Special Weather Statement | JAX | Flagler, Marion, Putnam | 43 min |
| Feb 23, 2:17 PM EST | Severe Thunderstorm Warning | JAX | Marion | 28 min |
| Feb 23, 2:32 PM EST | Tornado Warning | JAX | Flagler | 28 min |
| Feb 23, 2:47 PM EST | Special Weather Statement | JAX | Putnam | 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.