Alert archive / Georgia / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 280, NWS Jacksonville, FL

August 17, 20154 counties in Georgia

NWS Jacksonville, FL issued this severe thunderstorm warning at Aug 17, 2015, 3:50 PM EDT for 4 counties in Georgia. It was in force for 25 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
Aug 17, 2015, 3:50 PM EDT (19:50 UTC)
Expired
Aug 17, 2015, 4:15 PM EDT
In force
25 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 19:51 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.

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 Aug 17, 3:11 PM EDT, 39 minutes earlier.

Area forecast discussion, Aug 17, 3:11 PM EDT, 39 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE JACKSONVILLE FL
311 PM EDT MON AUG 17 2015

...WET PATTERN THROUGH THE END OF THE WEEK...

.NEAR TERM...THROUGH TONIGHT...

NUMEROUS SHOWERS AND T-STORMS WILL CONTINUE I-95 TO I-75
CORRIDORS INTO EARLY EVENING...DECREASING DURING THE EVENING.
LOCALLY HEAVY RAINFALL WITH POTENTIAL FOR MINOR FLOODING DUE TO
VERY SLOW STORM MOTION GIVEN WEAK FLOW ALOFT. LOW TEMP FORECAST
TONIGHT LOOKS GOOD WITH LOW-MID 70S EXPECTED.

&&

.SHORT TERM /TUESDAY THROUGH THURSDAY/...

WET PATTERN WILL CONTINUE THROUGH THE WEEK. RIDGING WILL
GENERALLY REMAIN DOMINANT BUT ACTIVE SEABREEZE BOUNDARIES WILL
COINCIDE WITH HIGH MOISTURE CONTENT AND PLENTIFUL DIURNAL
INSTABILITY TO KEEP THE THUNDERSTORM PATTERN ACTIVE THE REST OF
THE WEEK. DEEP LAYER MOISTURE WITH PWATS IN EXCESS OF 2 INCHES
WILL MAINTAIN A FOOTHOLD OVER THE AREA. STEERING FLOW WILL BE
MAINLY OUT OF THE SOUTH BUT IT WILL REMAIN WEAK ENOUGH FOR
BOTH SEABREEZES TO PUSH INLAND AND SPARK CONVECTION EACH DAY.
ACTIVITY WILL LIKELY GET STARTED BY NOON AND THEN BUILD THROUGH
THE AFTERNOON BEFORE WINDING DOWN EACH EVENING. UPPER RIDGE OVER
THE AREA WILL RESULT IN WARM CONDITIONS. ALTHOUGH THE ACTIVE
CONVECTIVE PATTERN WILL HELP MODERATE TEMPS A BIT...MOST INLAND
AREAS WILL STILL REACH 90 WITH EVEN SOME MID 90S EXPECTED OVER
THE INTERIOR COUNTIES MID WEEK.

.LONG TERM /FRIDAY THROUGH MONDAY/...

A SURFACE TROUGH SHOULD BEGIN TO NOSE INTO AT LEAST OUR SE GA
COUNTIES BY THE END OF THE WEEK BUT THERE IS STILL SOME
UNCERTAINTY WITH REGARDS TO TIMING. SCATTERED TO NUMEROUS DAILY
THUNDERSTORMS WILL CONTINUE THROUGH SATURDAY. BEYOND
SATURDAY...MUCH UNCERTAINTY EXISTS WITH REGARDS TO THE PATTERN
EVOLUTION. THE LATEST GFS IS MUCH FASTER TO RETROGRADE THE UPPER
HIGH WESTWARD AND ALLOW FOR MID LEVEL TROUGHING TO BECOME
ESTABLISHED OVER THE EASTERN CONUS. THIS PATTERN WOULD ALLOW FOR
SOME DRIER AIR ALOFT TO MOVE INTO THE AREA...AT LEAST INITIALLY.
THIS WOULD GIVE US AT LEAST A TEMPORARY BREAK FROM THE ACTIVE
THUNDERSTORM PATTERN FROM LATE IN THE WEEKEND INTO EARLY NEXT
WEEK...BUT CONFIDENCE IN THIS PATTERN IS RATHER LOW AT THIS TIME.

&&

.AVIATION...VFR CONDITIONS EXPECTED...EXCEPT LOWER IN
SCATTERED/NUMEROUS SHRA/TSRA THROUGH EARLY EVENING. LOCALLY
STRONG/GUSTY WINDS IN TSRA.

&&

.MARINE...
HIGH PRESSURE EAST OF THE AREA WILL MAINTAIN A SOUTHERLY FLOW
THROUGH THE END OF THE WEEK. PREVAILING WIND SPEEDS OUTSIDE OF
THUNDERSTORM ACTIVITY WILL BE GENERALLY 15 KNOTS OR LESS. THE
THUNDERSTORM PATTERN WILL REMAIN ACTIVE WITH AT LEAST SCATTERED
SHOWERS AND STORMS POSSIBLE THROUGH THE PERIOD.

RIP CURRENTS: LOW RISK.

&&

.PRELIMINARY POINT TEMPS/POPS...
AMG  73  91  75  93 /  50  70  30  60
SSI  76  88  77  86 /  20  50  30  40
JAX  74  91  76  91 /  30  60  20  50
SGJ  75  89  75  88 /  20  50  20  40
GNV  72  91  73  90 /  50  60  20  60
OCF  73  92  74  90 /  50  60  20  60

&&

.JAX WATCHES/WARNINGS/ADVISORIES...
FL...NONE.
GA...NONE.
AM...NONE.
&&

WOLF/SHULER/COMBS
Hazardous weather outlook, Aug 17, 3:08 AM EDT, 12 hours 42 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE JACKSONVILLE FL
308 AM EDT MON AUG 17 2015

AMZ450-452-454-470-472-474-FLZ020>025-030>033-035>038-040-124-125-
GAZ132>136-149>154-162>166-180715-
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-
308 AM EDT MON AUG 17 2015

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST FLORIDA...
SOUTHEAST GEORGIA AND THE ADJACENT COASTAL WATERS.

.DAY ONE...TODAY AND TONIGHT...

THUNDERSTORMS WILL DEVELOP LATE THIS MORNING...AND BECOME MORE
NUMEROUS THIS AFTERNOON. A FEW STRONG TO SEVERE STORMS WILL BE
POSSIBLE...WITH LOCALLY HEAVY RAINFALL.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY...

MAINLY AFTERNOON AND EVENING THUNDERSTORMS WILL BE EXPECTED EACH
DAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED.

FOR ADDITIONAL INFORMATION...VISIT THE NATIONAL WEATHER SERVICE
IN JACKSONVILLE WEBSITE ON THE INTERNET AT WEATHER.GOV/JAX.

In the hours before

Special weather statement, Aug 17, 3:18 PM EDT, 32 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
318 PM EDT MON AUG 17 2015

FLZ024-GAZ164>166-172000-
INLAND NASSAU FL-CHARLTON GA-INLAND CAMDEN GA-COASTAL CAMDEN GA-
318 PM EDT MON AUG 17 2015

...SIGNIFICANT WEATHER ADVISORY FOR NORTH CENTRAL NASSAU...
NORTHEASTERN CHARLTON AND CAMDEN COUNTIES UNTIL 400 PM EDT...

AT 317 PM EDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR
KINGS FERRY...OR 7 MILES WEST OF KINGSLAND...MOVING NORTHEAST AT 15
MPH.

GUSTY WINDS OF 45 TO 55 MPH CAN BE EXPECTED ALONG WITH POSSIBLE MINOR
WIND DAMAGE.

LOCATIONS IMPACTED INCLUDE...
ST. MARYS...KINGSLAND...FOLKSTON...WOODBINE...KINGS BAY BASE...KINGS
FERRY...COLESBURG...TARBORO AND HARRIETTS BLUFF.

PRECAUTIONARY/PREPAREDNESS ACTIONS...
REPORT DAMAGE TO THE NEAREST LAW ENFORCEMENT AGENCY OR YOUR COUNTY
EMERGENCY MANAGEMENT.

TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY LEAD
TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.

&&

LAT...LON 3089 8147 3085 8152 3087 8155 3085 8155
      3084 8152 3084 8154 3080 8156 3074 8164
      3074 8166 3070 8168 3064 8174 3092 8204
      3110 8190 3110 8184 3092 8152 3091 8152
      3091 8151
TIME...MOT...LOC 1917Z 225DEG 11KT 3083 8178

SHULER
Special weather statement, Aug 17, 3:26 PM EDT, 24 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
326 PM EDT MON AUG 17 2015

GAZ150-152-164-172015-
CHARLTON GA-BRANTLEY GA-WARE GA-
326 PM EDT MON AUG 17 2015

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN BRANTLEY...EAST
CENTRAL WARE AND NORTHERN CHARLTON COUNTIES UNTIL 415 PM EDT...

AT 326 PM EDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR
BRAGANZA...OR 12 MILES SOUTHEAST OF WAYCROSS...MOVING EAST AT 15 MPH.

GUSTY WINDS OF 45 TO 55 MPH CAN BE EXPECTED ALONG WITH POSSIBLE MINOR
WIND DAMAGE.

LOCATIONS IMPACTED INCLUDE...
NAHUNTA...RACE POND...HICKOX...FORT MUDGE...BRAGANZA AND WINOKUR.

PRECAUTIONARY/PREPAREDNESS ACTIONS...
REPORT DAMAGE TO THE NEAREST LAW ENFORCEMENT AGENCY OR YOUR COUNTY
EMERGENCY MANAGEMENT.

TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY LEAD
TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.

&&

LAT...LON 3110 8191 3109 8192 3106 8193 3106 8194
      3105 8193 3093 8198 3096 8242 3113 8241
      3126 8198 3119 8187
TIME...MOT...LOC 1926Z 255DEG 13KT 3107 8224

SHULER
Special weather statement, Aug 17, 3:37 PM EDT, 13 minutes before
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The office that day

Everything else NWS Jacksonville, FL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 17, 3:29 PM EDTSevere Thunderstorm WarningJAXAlachua46 min
Aug 17, 3:37 PM EDTSpecial Weather StatementJAXSuwannee38 min
Aug 17, 3:58 PM EDTSpecial Weather StatementJAXUnion32 min
Aug 17, 4:14 PM EDTSpecial Weather StatementJAXColumbia46 min
Aug 17, 4:17 PM EDTSevere Thunderstorm WarningJAXBaker, Columbia, Union28 min
Aug 17, 4:20 PM EDTAreal Flood AdvisoryJAXBaker, Union55 min
Aug 17, 4:23 PM EDTSpecial Weather StatementJAXDuval52 min
Aug 17, 4:33 PM EDTSevere Thunderstorm WarningJAXBaker, Bradford, Union42 min
Aug 17, 4:48 PM EDTAreal Flood AdvisoryJAXClay, Duval57 min
Aug 17, 4:58 PM EDTSpecial Weather StatementJAXHamilton47 min
Aug 17, 5:12 PM EDTAreal Flood AdvisoryJAXBaker, Columbia63 min
Aug 17, 3:18 PM EDTSpecial Weather StatementJAXCamden42 min
Aug 17, 3:26 PM EDTSpecial Weather StatementJAXBrantley49 min
Aug 17, 3:48 PM EDTAreal Flood AdvisoryJAXBrantley, Camden, Charlton57 min
Aug 17, 4:20 PM EDTSpecial Weather StatementJAXPierce40 min
Aug 17, 5:27 PM EDTSpecial Weather StatementJAXClinch, Echols48 min
Aug 17, 6:03 PM EDTAreal Flood AdvisoryJAXClinch87 min
Aug 17, 6:17 PM EDTSpecial Weather StatementJAXAtkinson, Clinch43 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; radar from the NEXRAD Level II archive.