Alert archive / Georgia / Severe Thunderstorm Warnings in 2015
Severe Thunderstorm Warning 231, NWS Jacksonville, FL
NWS Jacksonville, FL issued this severe thunderstorm warning at Jul 14, 2015, 5:30 PM EDT for 4 counties in Georgia. It was in force for 45 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
- Jul 14, 2015, 5:30 PM EDT (21:30 UTC)
- Expired
- Jul 14, 2015, 6:15 PM EDT
- In force
- 45 min
- Issued by
- NWS Jacksonville, FL
- Area
- Storm-based polygon
Counties Brantley County, GA, Camden County, GA, Charlton County, GA, Glynn County, GA
The radar
The Jacksonville radar (KJAX), 61 km from the middle of the area, began a volume at 21:32 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
Jacksonville, FL (KJAX), launched 12:00Z, 9.5 hours before the alert went out and 60 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
- 2282 J/kg
- Mixed-layer CIN
- -44 J/kg
- Mixed-layer LCL
- 942 m above ground
- 0-6 km bulk shear
- 12 kt
- 0-1 km storm-relative helicity
- -29 m²/s²
- 0-3 km storm-relative helicity
- -24 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -1.5
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 Jul 14, 4:13 PM EDT, 1 hour 17 minutes earlier.
Area forecast discussion, Jul 14, 4:13 PM EDT, 1 hour 17 minutes before
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</html>Hazardous weather outlook, Jul 14, 9:20 AM EDT, 8 hours 10 minutes before
HAZARDOUS WEATHER OUTLOOK...UPDATED NATIONAL WEATHER SERVICE JACKSONVILLE FL 920 AM EDT TUE JUL 14 2015 AMZ450-452-454-470-472-474-FLZ020>025-030>033-035>038-040-124-125- GAZ132>136-149>154-162>166-151330- COASTAL WATERS FROM ALTAMAHA SOUND TO FERNANDINA BEACH FL OUT 20 NM- COASTAL WATERS FROM FERNANDINA BEACH TO ST. AUGUSTINE FL OUT 20 NM- COASTAL WATERS FROM ST. AUGUSTINE TO FLAGLER BEACH FL OUT 20 NM- WATERS FROM ALTAMAHA SOUND GA TO FERNANDINA BEACH FL FROM 20 TO 60 NM- WATERS FROM FERNANDINA BEACH TO ST. AUGUSTINE FL FROM 20 TO 60 NM- WATERS FROM ST. AUGUSTINE TO FLAGLER BEACH FL FROM 20 TO 60 NM- HAMILTON-SUWANNEE-COLUMBIA-BAKER-INLAND NASSAU-INLAND DUVAL-UNION- BRADFORD-CLAY-ST. JOHNS-GILCHRIST-ALACHUA-PUTNAM-FLAGLER-MARION- COASTAL NASSAU-COASTAL DUVAL-COFFEE-JEFF DAVIS-BACON-APPLING- WAYNE-ATKINSON-WARE-PIERCE-BRANTLEY-INLAND GLYNN-COASTAL GLYNN- ECHOLS-CLINCH-CHARLTON-INLAND CAMDEN-COASTAL CAMDEN- 920 AM EDT TUE JUL 14 2015 ...ISOLATED SEVERE STORMS EXPECTED THIS AFTERNOON AND EVENING... ...HOT AND HUMID CONDITIONS WILL CONTINUE THIS WEEK WITH AFTERNOON HEAT INDICES AROUND 104 TO 108 DEGREES... THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST FLORIDA... SOUTHEAST GEORGIA AND THE ADJACENT COASTAL WATERS. .DAY ONE...TODAY AND TONIGHT... SCATTERED STORMS ARE EXPECTED THIS AFTERNOON AND EVENING. THE EARLY AFTERNOON WILL SEE THE BEST CHANCE OF STRONG TO SEVERE THUNDERSTORMS OVER NORTH FLORIDA MOVING FROM THE WEST-SOUTHWEST TO THE EAST-NORTHEAST AT 15 TO 20 MPH. LATER THIS AFTERNOON AND THIS EVENING...A BAND OF STORMS IS EXPECTED TO MOVE INTO SOUTHEAST GEORGIA AND NORTH FLORIDA FROM THE NORTHWEST AND INTERSECT WITH THE EAST COAST SEA BREEZE FRONT. A BETTER CHANCE OF SEVERE THUNDERSTORMS WILL EXIST WITH THIS BAND AND THE SEA BREEZE FRONT INTERACTION ESPECIALLY OVER SOUTHEAST GEORGIA AND FLORIDA EAST COAST COUNTIES/SAINT JOHNS RIVER AREA. THE MEAN MOVEMENT ON THESE STORMS SHOULD BE FROM NORTHWEST TO SOUTHEAST AROUND 15 MPH. PULSE SEVERE THUNDERSTORMS ARE EXPECTED TODAY WITH DAMAGING WINDS...HAIL...FREQUENT LIGHTNING AND LOCALIZED FLOODING FROM HEAVY RAINFALL. HIGHS IN THE MID TO UPPER 90S OVER INLAND AREAS AND LOWER 90S ALONG THE COAST WILL SUPPORT HEAT INDICES AROUND 104 TO 108 DEGREES DURING THE AFTERNOON HOURS. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY... SCATTERED THUNDERSTORMS STORMS ARE EXPECTED EACH DAY. STORM MOVEMENT WILL MAINLY BE TOWARDS THE SOUTHEAST. STRONG TO SEVERE THUNDERSTORMS ARE POSSIBLE EACH AFTERNOON...WITH DAMAGING WINDS UP TO 60 MPH...SMALL HAIL...FREQUENT LIGHTNING AND MINOR FLOODING FROM LOCALIZED HEAVY RAINFALL. HIGHS IN THE MID TO UPPER 90S WILL CONTINUE THROUGH THURSDAY WITH HEAT INDICES AROUND 105 DEGREES DURING THE AFTERNOON HOURS. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED. SPOTTERS ARE REQUESTED TO SELF-ACTIVATE IF WARNINGS ARE ISSUED IN THEIR AREA. FOR ADDITIONAL INFORMATION...VISIT THE NATIONAL WEATHER SERVICE IN JACKSONVILLE WEBSITE ON THE INTERNET AT WEATHER.GOV/JAX. SANDRIK
In the hours before
Special weather statement, Jul 14, 5:08 PM EDT, 22 minutes before
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</html>Special weather statement, Jul 14, 5:21 PM EDT, 9 minutes before
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</html>Local storm report, Jul 14, 5:27 PM EDT, 3 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 |
|---|---|---|---|---|
| Jul 14, 1:16 PM EDT | Special Weather Statement | JAX | Putnam | 29 min |
| Jul 14, 4:43 PM EDT | Special Weather Statement | JAX | Baker | 47 min |
| Jul 14, 4:48 PM EDT | Special Marine Warning | JAX | 117 min | |
| Jul 14, 5:11 PM EDT | Special Weather Statement | JAX | Nassau | 49 min |
| Jul 14, 5:16 PM EDT | Special Weather Statement | JAX | Columbia | 44 min |
| Jul 14, 5:21 PM EDT | Special Marine Warning | JAX | 114 min | |
| Jul 14, 5:25 PM EDT | Severe Thunderstorm Warning | JAX | Nassau | 50 min |
| Jul 14, 6:24 PM EDT | Special Weather Statement | JAX | Duval | 36 min |
| Jul 14, 6:38 PM EDT | Special Marine Warning | JAX | 67 min | |
| Jul 14, 7:11 PM EDT | Special Marine Warning | JAX | 64 min | |
| Jul 13, 8:52 PM EDT | Special Weather Statement | JAX | Wayne | 38 min |
| Jul 14, 2:39 PM EDT | Special Weather Statement | JAX | Jeff Davis | 51 min |
| Jul 14, 3:18 PM EDT | Severe Thunderstorm Warning | JAX | Appling, Coffee, Jeff Davis | 27 min |
| Jul 14, 3:35 PM EDT | Special Weather Statement | JAX | Clinch | 40 min |
| Jul 14, 3:45 PM EDT | Severe Thunderstorm Warning | JAX | Appling, Bacon, Coffee, Jeff Davis | 30 min |
| Jul 14, 3:53 PM EDT | Severe Thunderstorm Warning | JAX | Atkinson, Coffee | 52 min |
| Jul 14, 3:57 PM EDT | Severe Thunderstorm Warning | JAX | Charlton, Clinch, Ware | 48 min |
| Jul 14, 4:21 PM EDT | Special Weather Statement | JAX | Camden | 39 min |
| Jul 14, 4:41 PM EDT | Special Weather Statement | JAX | Charlton | 49 min |
| Jul 14, 4:49 PM EDT | Special Weather Statement | JAX | Pierce, Ware | 41 min |
| Jul 14, 5:08 PM EDT | Special Weather Statement | JAX | Brantley, Camden, Glynn | 52 min |
| Jul 14, 5:21 PM EDT | Special Weather Statement | JAX | Clinch, Ware | 39 min |
Nearby
Severe Thunderstorm Warnings in Georgia, 2015Every severe thunderstorm warning in 2015
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.