Alert archive / Georgia / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 314, NWS Jacksonville, FL

November 16, 20114 counties in Georgia

NWS Jacksonville, FL issued this severe thunderstorm warning at Nov 16, 2011, 11:51 PM EST for 4 counties in Georgia. It was in force for 39 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: Nov 16, 2011, 11:51 PM EST (04:51 UTC)
Expired: Nov 17, 2011, 12:30 AM EST
In force: 39 min
Issued by: NWS Jacksonville, FL
Area: Storm-based polygon

Counties Brantley County, GA, Glynn County, GA, Pierce County, GA, Wayne County, GA

The radar

The Jacksonville radar (KJAX), 96 km from the middle of the area, began a volume at 04:51 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.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Nov 16, 8:14 PM EST	Tornado Watch	SPC	4 hr

The nearest sounding before it

Jacksonville, FL (KJAX), launched 00:00Z, 4.9 hours before the alert went out and 94 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 769 J/kg
Mixed-layer CIN: -18 J/kg
Mixed-layer LCL: 991 m above ground
0-6 km bulk shear: 52 kt
0-1 km storm-relative helicity: 123 m²/s²
0-3 km storm-relative helicity: 139 m²/s²
Significant tornado parameter: 0.6
Supercell composite: 2.4

Open this sounding in Storm Lab

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 Nov 16, 9:11 PM EST, 2 hours 40 minutes earlier.

Area forecast discussion, Nov 16, 9:11 PM EST, 2 hours 40 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE JACKSONVILLE FL
911 PM EST WED NOV 16 2011

.UPDATE...

A NORTHEAST TO SOUTHWEST ORIENTED LINE OF STORMS JUST AHEAD OF
A SURFACE COLD FRONT IS MOVING EAST ACROSS SOUTHEAST GA AT THE
MOMENT. THE SOUTHERN END OF THIS LINE IS EXPECTED TO WEAKEN OVER
NORTHEAST FLORIDA...LEAVING FOCUS FOR STRONGER STORMS OVER
SOUTHEAST GEORGIA. THE SURFACE COLD FRONT ITSELF WILL CROSS THE
FORECAST AREA EARLY THURSDAY.

&&

.AVIATION...

SHOWERS AND STORMS CAN BE EXPECTED AT AREA TERMINALS
TONIGHT...AHEAD OF AN APPROACHING COLD FRONT. A FEW OF THESE
STORMS COULD PRODUCE A STRONG TO SEVERE STORM. AND AN ISOLATED
TORNADO IS POSSIBLE IN SOUTHEAST GA. RESTRICTIONS CAN BE EXPECTED
THROUGH THE OVERNIGHT PERIOD AT AREA TAF SITES. THE FRONT ITSELF
WILL THEN CROSS AREA TERMINALS EARLY THURSDAY MORNING. WINDS WILL
BE BECOME GUSTY FOLLOWING THE FRONTAL PASSAGE. CONDITIONS WILL
GRADUALLY IMPROVE TO VFR DURING THE AFTERNOON HOURS.

&&

.MARINE...

LINE OF GUSTY STORMS WILL MOVE ACROSS AREA WATERS TONIGHT...AHEAD
OF APPROACHING COLD FRONT. THE FRONT ITSELF WILL CROSS AREA WATERS
LATE THURSDAY MORNING.

RIP CURRENTS: AN ELEVATED RISK OF RIP CURRENTS IS EXPECTED TO
CONTINUE THROUGH THE WEEKEND.

&&

.PRELIMINARY POINT TEMPS/POPS...
AMG  63  72  39  62 /  90  20   0   0
SSI  66  75  50  62 /  50  40  10  10
JAX  67  77  46  64 /  50  50  10  10
SGJ  68  78  55  67 /  40  50  10  20
GNV  66  78  46  68 /  50  50   0  10
OCF  66  80  47  71 /  50  50  10  10

&&

.JAX WATCHES/WARNINGS/ADVISORIES...
FL...NONE.
GA...NONE.
AM...SMALL CRAFT ADVISORY FROM 3 PM THURSDAY TO 6 AM EST SATURDAY FOR
     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.

     SMALL CRAFT ADVISORY FROM 7 PM THURSDAY TO 1 AM EST SATURDAY FOR
     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.

&&

STRUBLE/SANDRIK

Hazardous weather outlook, Nov 16, 8:15 PM EST, 3 hours 36 minutes before

HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE JACKSONVILLE FL
815 PM EST WED NOV 16 2011

FLZ020>025-030>033-035>038-040-GAZ132>136-149>154-162>166-170930-
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-
815 PM EST WED NOV 16 2011

THIS OUTLOOK IS FOR NORTHEAST FLORIDA AND SOUTHEAST GEORGIA.

...A TORNADO WATCH IS IN EFFECT FOR SOUTHEASTERN GEORGIA UNTIL 200
AM...

.DAY ONE...TONIGHT...

A COLD FRONT WILL APPROACH THE AREA TONIGHT BRINGING A LINE OF
THUNDERSTORMS ACROSS THE AREA. SOME STORMS MAY BE SEVERE ACROSS
SOUTHEAST GEORGIA AND THE SUWANNEE VALLEY AND MAY BE CAPABLE OF
PRODUCING GUSTY WINDS UP TO 70 MPH AND HAIL UP TO 2 INCHES IN
DIAMETER. ISOLATED TORNADOES ARE ALSO BE POSSIBLE IN AND NEAR THE
WATCH AREA.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY...

AN ELEVATED RISK OF RIP CURRENTS IS EXPECTED THROUGH THE WEEKEND.

.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.

SANDRIK

In the hours before

Local storm report, Nov 16, 8:55 PM EST, 2 hours 56 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
855 PM EST WED NOV 16 2011

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0815 PM     TSTM WND DMG     4 NNW HOMERVILLE        31.09N 82.79W
11/16/2011                   CLINCH             GA   911 CALL CENTER

            THE 911 CENTER REPORTED A TREE BLOWN DOWN ON A POWERLINE
            JUST OFF OF 441 NORTH NEAR HOMERVILLE. THE TIME GIVEN WAS
            BASED ON RADAR.

&&

PP

Local storm report, Nov 16, 9:08 PM EST, 2 hours 43 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
908 PM EST WED NOV 16 2011

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0855 PM     TSTM WND GST     4 NW WAYCROSS           31.25N 82.40W
11/16/2011  M41 MPH          WARE               GA   AWOS

            WAYCROSS AWOS REPORTED A WIND GUST OF 41 MPH.

&&

SEP

Special weather statement, Nov 16, 9:32 PM EST, 2 hours 19 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
932 PM EST WED NOV 16 2011

GAZ136-152>154-170330-
BRANTLEY-GLYNN (COASTAL)-GLYNN (INLAND)-WAYNE-
932 PM EST WED NOV 16 2011

...A SIGNIFICANT WEATHER ADVISORY HAS BEEN ISSUED FOR WAYNE...
BRANTLEY AND GLYNN COUNTIES FOR STRONG WINDS AND FREQUENT
LIGHTNING VALID UNTIL 1030 PM EDT...

A LINE OF STRONG TO POSSIBLY SEVERE THUNDERSTORMS WILL MOVE INTO THE
EASTERN WAYNE AND BRANTLEY COUNTY AREAS THROUGH 1000 PM AND INTO
GLYNN COUNTY BETWEEN 1000 AND 1030 PM THIS EVENING. BRIEF
DOWNPOURS...GUSTY WINDS OF 45 TO 55 MPH...HAIL AND FREQUENT CLOUD TO
GROUND LIGHTNING CAN BE EXPECTED AS THE LINE MOVES EAST ACROSS THESE
COUNTIES.

TORNADO WATCH 892 IS IN EFFECT UNTIL 200 AM BE ALERT FOR POSSIBLE
WARNINGS AS THE STORMS APPROACH YOUR AREA. REMEMBER TORNADOES ARE
POSSIBLE IN AND NEAR THE WATCH AREA.

SANDRIK

Local storm report, Nov 16, 9:42 PM EST, 2 hours 9 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
942 PM EST WED NOV 16 2011

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0839 PM     TSTM WND DMG     5 S DIXIE UNION         31.27N 82.47W
11/16/2011                   WARE               GA   911 CALL CENTER

            THE 911 CALL CENTER REPORTED TREES DOWN ALONG LOVETT ROAD
            IN WARESBORO. TIME IS ESTIMATED FROM RADAR.

0845 PM     TSTM WND DMG     5 NW WAYCROSS           31.27N 82.41W
11/16/2011                   WARE               GA   911 CALL CENTER

            THE 911 CALL CENTER REPORTED TREES DOWN ALONG US-1 NEAR
            WAYCROSS. TIME IS ESTIMATED FROM RADAR.

0845 PM     TSTM WND DMG     4 SSE DIXIE UNION       31.28N 82.43W
11/16/2011                   WARE               GA   911 CALL CENTER

            THE 911 CALL CENTER REPORTED DAMAGE TO ROOFS IN THE
            PALMETTO SUBDIVISION NEAR CAMERON LANE AND US-1. TIME IS
            ESTIMATED FROM RADAR.

&&

SEP

Special weather statement, Nov 16, 10:02 PM EST, 1 hour 49 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
1002 PM EST WED NOV 16 2011

FLZ020>022-170400-
COLUMBIA-HAMILTON-SUWANNEE-
1002 PM EST WED NOV 16 2011

...A SIGNIFICANT WEATHER ADVISORY HAS BEEN ISSUED FOR COLUMBIA...
HAMILTON AND SUWANNEE COUNTIES FOR STRONG WINDS AND FREQUENT
LIGHTNING VALID UNTIL 1100 PM EDT...

A LINE OF STRONG TO POSSIBLY SEVERE THUNDERSTORMS WILL MOVE INTO THE
HAMILTON AND SUWANNEE COUNTY AREAS THROUGH 1030 PM AND INTO COLUMBIA
COUNTY BETWEEN 1030 AND 1100 PM THIS EVENING. BRIEF DOWNPOURS...
GUSTY WINDS OF 45 TO 55 MPH...HAIL AND FREQUENT CLOUD TO GROUND
LIGHTNING CAN BE EXPECTED AS THE LINE MOVES EAST ACROSS THESE
COUNTIES.

TORNADO WATCH 892 IS IN EFFECT ACROSS SOUTHEAST GEORGIA UNTIL 200 AM
REMEMBER TORNADOES ARE POSSIBLE IN AND NEAR THE WATCH AREA.

SANDRIK

Special weather statement, Nov 16, 10:11 PM EST, 1 hour 40 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
1011 PM EST WED NOV 16 2011

GAZ149-150-163-170400-
ATKINSON-CLINCH-WARE-
1011 PM EST WED NOV 16 2011

...A SIGNIFICANT WEATHER ADVISORY HAS BEEN ISSUED FOR ATKINSON...
CLINCH AND WARE COUNTIES FOR STRONG WINDS AND FREQUENT LIGHTNING
VALID UNTIL 1100 PM EDT...

A LINE OF STRONG THUNDERSTORMS WILL MOVE ACROSS CLINCH COUNTY AND
INTO ATKINSON AND WARE COUNTIES THROUGH 1100 PM THIS EVENING. BRIEF
DOWNPOURS...GUSTY WINDS OF 45 TO 55 MPH AND FREQUENT CLOUD TO GROUND
LIGHTNING CAN BE EXPECTED AS THE LINE MOVES EAST ACROSS THESE
COUNTIES.

TORNADO WATCH 892 IS IN EFFECT ACROSS SOUTHEAST GEORGIA UNTIL 200 AM.
REMEMBER TORNADOES ARE POSSIBLE IN AND NEAR THE WATCH AREA.

PRESNALL

The office that day

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

Issued	Product	Office	Counties	Lasted
Nov 17, 12:07 AM EST	Special Weather Statement	JAX	Columbia, Hamilton, Suwannee	38 min
Nov 17, 12:31 AM EST	Severe Thunderstorm Warning	JAX	Baker, Columbia, Hamilton, Suwannee	29 min
Nov 17, 1:00 AM EST	Severe Thunderstorm Warning	JAX	Baker, Columbia, Nassau	30 min
Nov 17, 1:14 AM EST	Special Weather Statement	JAX	Baker, Union	31 min
Nov 17, 1:31 AM EST	Severe Thunderstorm Warning	JAX	Baker, Duval, Nassau	44 min
Nov 17, 2:30 AM EST	Special Weather Statement	JAX	Gilchrist, Union	60 min
Nov 17, 3:14 AM EST	Special Weather Statement	JAX	Bradford, Duval	46 min
Nov 17, 4:46 AM EST	Special Weather Statement	JAX	Clay	44 min
Nov 17, 4:52 AM EST	Special Weather Statement	JAX	Putnam	53 min
Nov 17, 5:24 AM EST	Special Weather Statement	JAX	Saint Johns	66 min
Nov 17, 5:28 AM EST	Special Weather Statement	JAX	Flagler, Marion, Putnam	62 min
Nov 17, 6:21 AM EST	Special Marine Warning	JAX		39 min
Nov 17, 6:31 AM EST	Special Weather Statement	JAX	Flagler, Marion, Putnam	59 min
Nov 17, 7:29 AM EST	Special Weather Statement	JAX	Marion	46 min
Nov 17, 7:31 AM EST	Special Weather Statement	JAX	Flagler	29 min
Nov 17, 8:02 AM EST	Special Weather Statement	JAX	Flagler	43 min
Nov 16, 7:32 PM EST	Severe Thunderstorm Warning	JAX	Appling, Bacon, Coffee, Jeff Davis	43 min
Nov 16, 7:55 PM EST	Severe Thunderstorm Warning	JAX	Atkinson, Clinch	39 min
Nov 16, 8:30 PM EST	Severe Thunderstorm Warning	JAX	Atkinson, Bacon, Clinch, Pierce, Ware	45 min
Nov 16, 8:53 PM EST	Tornado Warning	JAX	Brantley, Pierce, Wayne	37 min
Nov 16, 9:03 PM EST	Severe Thunderstorm Warning	JAX	Clinch	42 min
Nov 16, 10:58 PM EST	Severe Thunderstorm Warning	JAX	Brantley, Pierce, Ware, Wayne	47 min
Nov 16, 11:59 PM EST	Special Weather Statement	JAX	Echols	46 min
Nov 17, 12:29 AM EST	Special Weather Statement	JAX	Glynn	31 min
Nov 17, 12:52 AM EST	Special Weather Statement	JAX	Camden	53 min
Nov 17, 10:23 AM EST	Lake Wind Advisory	JAX	Appling, Atkinson, Bacon, Coffee, Jeff Davis, Pierce and 1 more	6 hr

Nearby

Severe Thunderstorm Warnings in Georgia, 2011 Every severe thunderstorm warning 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; radar from the NEXRAD Level II archive.