Alert archive / Georgia / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 99, NWS Jacksonville, FL

May 11, 2008Wayne County, Georgia

NWS Jacksonville, FL issued this severe thunderstorm warning at May 11, 2008, 1:43 PM EDT for Wayne County, Georgia. It was in force for 32 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: May 11, 2008, 1:43 PM EDT (17:43 UTC)
Expired: May 11, 2008, 2:15 PM EDT
In force: 32 min
Issued by: NWS Jacksonville, FL
Area: Storm-based polygon

County Wayne County, GA

The radar

The Jacksonville radar (KJAX), 120 km from the middle of the area, began a volume at 17:45 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
May 11, 5:52 AM EDT	Tornado Watch	SPC	8 hr

The nearest sounding before it

Jacksonville, FL (KJAX), launched 12:00Z, 5.7 hours before the alert went out and 119 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: 1555 J/kg
Mixed-layer CIN: -68 J/kg
Mixed-layer LCL: 722 m above ground
0-6 km bulk shear: 60 kt
0-1 km storm-relative helicity: 248 m²/s²
0-3 km storm-relative helicity: 267 m²/s²
Significant tornado parameter: 2.0
Supercell composite: 8.9

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 May 11, 9:06 AM EDT, 4 hours 37 minutes earlier.

Area forecast discussion, May 11, 9:06 AM EDT, 4 hours 37 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE JACKSONVILLE FL
906 AM EDT SUN MAY 11 2008

.UPDATE...TOR WATCH CONTINUES UNTIL 17Z. A STRONG MCS IS RACING
ACROSS THE NRN PORTION OF OUR GA COUNTIES AND AREA RADARS HAVE
DEPICTED NUM ROTATIONAL SIGNATURES ALOFT. A LAKE WIND ADV CONT
ACRS THE REGION WITH SWLY WINDS ALREADY GUSTING TO ARND 30 MPH IN
SE GA AND INCREASING RAPIDLY ELSEWHERE AS THE PRES GRADIENT
STRENGTHENS WITH THE APPROACHING FRONT. IN ADDITION TO THE MCS A
SHORTWAVE IS NOTED ALONG THE CTRL GULF COAST WITH CONVECTION
FIRING OVER SRN LA. NAM BRINGS THE SHORTWAVE INTO N FL DURING THE
AFTN BUT BY THEN THE DEEP MOISTURE WILL HAVE EXITED. HAVE MADE
MINOR TWEAKS TO THE GRIDS ONLY AND NO UPDATE IS PLANNED UNTIL
WATCHES EXPIRE OR ARE EXPANDED.

&&

.AVIATION...OVERCAST MID/HI CLOUDS BLANKET THE AREA. TS ARE FAST
APPROACHING SSI AND EXPECT TS IN THE AFTN AT OTHER TAF SITES. LOW
CIGS ARE UPSTREAM OF SSI AND WILL KEEP MVFR GOING.

&&

.MARINE...NO CHANGES THIS MORNING.

&&

.PRELIMINARY POINT TEMPS/POPS...
AMG  85  56  81  50 /  60  10   0   0
SSI  86  61  80  57 /  50  10   0   0
JAX  89  58  82  54 /  30  10   0   0
SGJ  90  62  81  58 /  20  20   0   0
GNV  90  61  84  53 /  20  20   0   0
OCF  90  61  84  52 /  20  20   0   0

&&

.JAX WATCHES/WARNINGS/ADVISORIES...
FL...LAKE WIND ADVISORY UNTIL 11 PM EDT THIS EVENING FOR ALACHUA-
     BAKER-BRADFORD-CLAY-COLUMBIA-DUVAL-FLAGLER-GILCHRIST-
     HAMILTON-MARION-NASSAU-PUTNAM-ST JOHNS-SUWANNEE-UNION.

     RED FLAG WARNING FROM 12 PM TO 7 PM EDT MONDAY FOR ALACHUA-BAKER-
     BRADFORD-CLAY-COLUMBIA-DUVAL-FLAGLER-GILCHRIST-HAMILTON-
     MARION-NASSAU-PUTNAM-ST JOHNS-SUWANNEE-UNION.

GA...LAKE WIND ADVISORY UNTIL 11 PM EDT THIS EVENING FOR APPLING-
     ATKINSON-BACON-BRANTLEY-CHARLTON-CLINCH-COASTAL CAMDEN-
     COASTAL GLYNN-COFFEE-ECHOLS-INLAND CAMDEN-INLAND GLYNN-JEFF
     DAVIS-PIERCE-WARE-WAYNE.

     FIRE WEATHER WATCH FROM MONDAY AFTERNOON THROUGH MONDAY EVENING
     FOR APPLING-ATKINSON-BACON-BRANTLEY-CHARLTON-CLINCH-COASTAL
     CAMDEN-COASTAL GLYNN-COFFEE-ECHOLS-INLAND CAMDEN-INLAND
     GLYNN-JEFF DAVIS-PIERCE-WARE-WAYNE.

AM...SMALL CRAFT ADVISORY UNTIL 5 AM EDT TUESDAY 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 UNTIL 4 PM EDT MONDAY 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.

&&

MKT/ABE/RK/JTD/ACS

Hazardous weather outlook, May 11, 1:00 PM EDT, 43 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE JACKSONVILLE FL
100 PM EDT SUN MAY 11 2008

FLZ020>025-030>033-035>038-040-GAZ132>136-149>154-162>166-120830-
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-
100 PM EDT SUN MAY 11 2008

THIS OUTLOOK IS FOR NORTHEAST FLORIDA AND SOUTHEAST GEORGIA.

.DAY ONE...THIS AFTERNOON AND TONIGHT...

...TORNADO WATCH IN EFFECT UNTIL 2 PM EDT TODAY ACROSS SOUTHEAST
GEORGIA...
...SEVERE THUNDERSTORMS ARE POSSIBLE TODAY...

SCATTERED SHOWERS AND THUNDERSTORMS ARE EXPECTED ALONG AND AHEAD OF
A COLD FRONT THAT WILL CONTINUE TO MOVE ACROSS THE AREA TODAY. A FEW
OF THE STORMS MAY BECOME SEVERE...AND PRODUCE LARGE HAIL AND DAMAGING
WINDS. THUNDERSTORM COVERAGE...AND THE THREAT FOR SEVERE
THUNDERSTORMS...WILL BE GREATEST ACROSS SOUTH-CENTRAL AND SOUTHEAST
GEORGIA...WITH ONLY ISOLATED THUNDERSTORMS EXPECTED ACROSS NORTH
CENTRAL FLORIDA.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY...

THUNDERSTORMS WILL BE POSSIBLE LATE FRIDAY THROUGH SATURDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS REQUESTED ACROSS SOUTHEAST GEORGIA THIS
AFTERNOON.

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

ENYEDI

In the hours before

Local storm report, May 11, 12:19 PM EDT, 1 hour 24 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
1219 PM EDT SUN MAY 11 2008

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

1218 PM     LIGHTNING        BLACKSHEAR              31.30N 82.24W
05/11/2008                   PIERCE             GA   FIRE DEPT/RESCUE

            A LIGHTNING STRIKE CAUSED A BRUSH FIRE OFF OF SATILLA
            ROAD. FORESTRY CREWS WERE DISPATCHED AND THE BLAZE IS
            CONTAINED. THE TIME OF IGNITION IS UNKNOWN.

&&

AENYEDI

Local storm report, May 11, 12:24 PM EDT, 1 hour 19 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
1224 PM EDT SUN MAY 11 2008

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

0945 AM     HAIL             ALMA                    31.54N 82.48W
05/11/2008  E0.75 INCH       BACON              GA   TRAINED SPOTTER

            PENNY SIZE HAIL REPORTED IN ALMA. TREE DOWN ALONG HIGHWAY
            32 EAST OF ALMA.

&&

JHESS

Local storm report, May 11, 12:29 PM EDT, 1 hour 14 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
1229 PM EDT SUN MAY 11 2008

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

0935 AM     TSTM WND DMG     JESUP                   31.60N 81.89W
05/11/2008                   WAYNE              GA   TRAINED SPOTTER

            TREES DOWN ALONG LARRY POPPEL ROAD.

&&

JHESS

Special weather statement, May 11, 12:32 PM EDT, 1 hour 11 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
1232 PM EDT SUN MAY 11 2008

GAZ132>135-111700-
APPLING-BACON-COFFEE-JEFF DAVIS-
1232 PM EDT SUN MAY 11 2008

...A SIGNIFICANT WEATHER ALERT HAS BEEN ISSUED FOR NORTHERN COFFEE...
WESTERN APPLING...SOUTHWESTERN JEFF DAVIS AND WESTERN BACON COUNTIES
FOR STRONG WINDS AND SMALL HAIL VALID UNTIL 100 PM EDT...

AT 1232 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM CENTERED 4 MILES WEST OF BROXTON...MOVING EAST AT
45 MPH. THIS STRONG THUNDERSTORM WILL ALSO AFFECT AREAS AROUND
PRIDGEN...BROXTON...WEST GREEN...NICHOLLS...NEW LACY AND ALMA THROUGH
100 PM EDT. HAIL UP TO ONE HALF INCH IN DIAMETER AND GUSTY WINDS OF
45 TO 55 MPH CAN BE EXPECTED ALONG WITH POSSIBLE MINOR DAMAGE.

THE AREA REMAINS UNDER A TORNADO WATCH.

REPORT DAMAGE TO THE NEAREST LAW ENFORCEMENT AGENCY OR YOUR COUNTY
EMERGENCY MANAGEMENT.

PETERSON

Special weather statement, May 11, 1:02 PM EDT, 41 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
102 PM EDT SUN MAY 11 2008

GAZ154-166-111730-
COASTAL CAMDEN-COASTAL GLYNN-
102 PM EDT SUN MAY 11 2008

...A SIGNIFICANT WEATHER ALERT HAS BEEN ISSUED FOR EASTERN CAMDEN AND
SOUTHERN GLYNN COUNTIES FOR STRONG WINDS AND SMALL HAIL VALID UNTIL
130 PM EDT...

AT 102 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED STRONG
THUNDERSTORMS CENTERED 4 MILES NORTH OF HIGH POINT...MOVING EAST AT
45 MPH. THESE STRONG THUNDERSTORMS WILL ALSO AFFECT AREAS AROUND
JEKYLL ISLAND...HIGH POINT AND BRUNSWICK THROUGH 130 PM EDT. HAIL UP
TO ONE HALF INCH IN DIAMETER AND GUSTY WINDS UP TO 50 MPH 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.

ZIBURA

Local storm report, May 11, 1:25 PM EDT, 18 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
125 PM EDT SUN MAY 11 2008

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

0815 AM     TSTM WND DMG     AMBROSE                 31.59N 83.01W
05/11/2008                   COFFEE             GA   LAW ENFORCEMENT

            TREES DOWN IN THE AMBROSE VICINITY AS REPORTED BY 911
            DISPATCH.

&&

JHESS

The office that day

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

Issued	Product	Office	Counties	Lasted
May 11, 2:43 AM EDT	Red Flag Warning	JAX	Baker, Bradford, Flagler, Gilchrist, Nassau, Suwannee and 1 more	40 hr
May 11, 3:35 AM EDT	Lake Wind Advisory	JAX	Baker, Bradford, Flagler, Gilchrist, Nassau, Suwannee and 1 more	40 hr
May 11, 9:22 AM EDT	Special Marine Warning	JAX		113 min
May 11, 11:08 AM EDT	Special Marine Warning	JAX		97 min
May 11, 12:44 PM EDT	Special Marine Warning	JAX		91 min
May 11, 1:20 PM EDT	Wind Advisory	JAX	Baker, Bradford, Flagler, Gilchrist, Nassau, Suwannee and 1 more	7 hr
May 11, 2:30 PM EDT	Special Marine Warning	JAX		2 hr
May 11, 3:15 PM EDT	Fire Weather Watch	JAX	Baker, Bradford, Gilchrist, Nassau, Suwannee, Union	37 hr
May 11, 4:33 PM EDT	Special Marine Warning	JAX		67 min
May 11, 6:10 PM EDT	Special Marine Warning	JAX		50 min
May 10, 10:42 PM EDT	Severe Thunderstorm Warning	JAX	Wayne	48 min
May 11, 12:29 AM EDT	Severe Thunderstorm Warning	JAX	Wayne	31 min
May 11, 2:43 AM EDT	Fire Weather Watch	JAX	Appling, Atkinson, Bacon, Brantley, Camden, Clinch and 6 more	13 hr
May 11, 7:34 AM EDT	Severe Thunderstorm Warning	JAX	Appling, Jeff Davis	36 min
May 11, 7:57 AM EDT	Tornado Warning	JAX	Bacon, Coffee, Jeff Davis	48 min
May 11, 8:02 AM EDT	Severe Thunderstorm Warning	JAX	Appling, Atkinson, Bacon, Coffee, Jeff Davis, Ware	43 min
May 11, 8:07 AM EDT	Tornado Warning	JAX	Appling, Bacon, Jeff Davis, Wayne	38 min
May 11, 8:34 AM EDT	Severe Thunderstorm Warning	JAX	Appling, Pierce, Wayne	41 min
May 11, 8:46 AM EDT	Severe Thunderstorm Warning	JAX	Appling, Bacon, Coffee, Jeff Davis, Ware, Wayne	44 min
May 11, 9:04 AM EDT	Tornado Warning	JAX	Coffee, Jeff Davis	41 min
May 11, 9:09 AM EDT	Tornado Warning	JAX	Wayne	26 min
May 11, 9:14 AM EDT	Severe Thunderstorm Warning	JAX	Appling, Bacon, Brantley, Camden, Glynn, Pierce and 2 more	46 min
May 11, 9:26 AM EDT	Areal Flood Advisory	JAX	Appling, Bacon, Brantley, Coffee, Glynn, Jeff Davis and 2 more	2 hr
May 11, 9:31 AM EDT	Severe Thunderstorm Warning	JAX	Appling, Bacon, Coffee, Jeff Davis, Ware, Wayne	29 min
May 11, 9:53 AM EDT	Severe Thunderstorm Warning	JAX	Brantley, Camden, Glynn, Wayne	52 min
May 11, 9:57 AM EDT	Severe Thunderstorm Warning	JAX	Appling, Bacon, Brantley, Coffee, Pierce, Ware and 1 more	27 min
May 11, 9:59 AM EDT	Severe Thunderstorm Warning	JAX	Bacon, Coffee, Jeff Davis	31 min
May 11, 10:16 AM EDT	Tornado Warning	JAX	Wayne	29 min
May 11, 10:23 AM EDT	Tornado Warning	JAX	Brantley, Pierce	23 min
May 11, 10:45 AM EDT	Tornado Warning	JAX	Brantley, Camden, Glynn, Wayne	30 min
May 11, 11:10 AM EDT	Tornado Warning	JAX	Glynn	35 min
May 11, 11:34 AM EDT	Areal Flood Advisory	JAX	Brantley, Glynn, Wayne	86 min
May 11, 12:51 PM EDT	Severe Thunderstorm Warning	JAX	Appling, Bacon, Coffee, Jeff Davis	24 min
May 11, 1:18 PM EDT	Severe Thunderstorm Warning	JAX	Appling, Bacon, Pierce, Wayne	27 min
May 11, 2:07 PM EDT	Severe Thunderstorm Warning	JAX	Glynn, Wayne	23 min
May 11, 2:08 PM EDT	Severe Thunderstorm Warning	JAX	Appling, Coffee, Jeff Davis	37 min
May 11, 2:14 PM EDT	Tornado Warning	JAX	Glynn, Wayne	31 min
May 11, 2:19 PM EDT	Tornado Warning	JAX	Appling, Jeff Davis	26 min
May 11, 2:34 PM EDT	Tornado Warning	JAX	Glynn	26 min
May 11, 2:45 PM EDT	Severe Thunderstorm Warning	JAX	Appling, Wayne	30 min
May 11, 2:52 PM EDT	Severe Thunderstorm Warning	JAX	Atkinson, Bacon, Coffee, Ware	38 min
May 11, 3:20 PM EDT	Severe Thunderstorm Warning	JAX	Brantley, Pierce, Wayne	30 min
May 11, 3:51 PM EDT	Severe Thunderstorm Warning	JAX	Glynn, Wayne	24 min
May 11, 4:24 PM EDT	Severe Thunderstorm Warning	JAX	Glynn, Pierce, Wayne	36 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2008 Every severe thunderstorm warning in 2008

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.