Alert archive / Georgia / Severe Thunderstorm Warnings in 2009

Severe Thunderstorm Warning 14, NWS Jacksonville, FL

March 28, 2009Coffee County, Jeff Davis County, Georgia

NWS Jacksonville, FL issued this severe thunderstorm warning at Mar 28, 2009, 2:01 PM EDT for Coffee County, Jeff Davis County, Georgia. It was in force for 44 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
Mar 28, 2009, 2:01 PM EDT (18:01 UTC)
Expired
Mar 28, 2009, 2:45 PM EDT
In force
44 min
Issued by
NWS Jacksonville, FL
Area
Storm-based polygon

Counties Coffee County, GA, Jeff Davis County, GA

The watch it was issued in

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

IssuedProductOfficeLasted
Mar 28, 12:47 PM EDTTornado WatchSPC7 hr

The nearest sounding before it

Jacksonville, FL (KJAX), launched 12:00Z, 6.0 hours before the alert went out and 164 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-pSkew-T log-p diagram, Jacksonville, FL at 12:00Z on 2009-03-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 443 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Jacksonville, FL at 12:00Z on 2009-03-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 237 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
443 J/kg
Mixed-layer CIN
-133 J/kg
Mixed-layer LCL
606 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
237 m²/s²
0-3 km storm-relative helicity
129 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.1

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 Mar 28, 9:52 AM EDT, 4 hours 9 minutes earlier.

Area forecast discussion, Mar 28, 9:52 AM EDT, 4 hours 9 minutes before
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Hazardous weather outlook, Mar 28, 12:58 PM EDT, 1 hour 3 minutes before
HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE JACKSONVILLE FL
1258 PM EDT SAT MAR 28 2009

FLZ020>025-030>033-035>038-040-GAZ132>136-149>154-162>166-290000-
ALACHUA-APPLING-ATKINSON-BACON-BAKER-BRADFORD-BRANTLEY-
CAMDEN (COASTAL)-CAMDEN (INLAND)-CHARLTON-CLAY-CLINCH-COFFEE-
COLUMBIA-DUVAL-ECHOLS-FLAGLER-GILCHRIST-GLYNN (COASTAL)-
GLYNN (INLAND)-HAMILTON-JEFF DAVIS-MARION-NASSAU-PIERCE-PUTNAM-
ST JOHNS-SUWANNEE-UNION-WARE-WAYNE-
1258 PM EDT SAT MAR 28 2009

THIS OUTLOOK IS FOR NORTHEAST FLORIDA AND SOUTHEAST GEORGIA.

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

...TORNADO WATCH 90 IN EFFECT FOR SOUTHEAST GEORGIA AND THE
ADJACENT COASTAL WATERS THROUGH 8 PM EDT...
...SEVERE STORMS POSSIBLE THIS AFTERNOON AND TONIGHT...
...HIGH RIP CURRENT RISK AT AREA BEACHES...

THE TORNADO WATCH 90 INCLUDES THE FOLLOWING COUNTIES IN SOUTHEAST
GEORGIA...
APPLING...ATKINSON...BACON...BRANTLEY...CAMDEN...CHARLTON...CLINCH...
COFFEE...ECHOLS...GLYNN...JEFF DAVIS...PIERCE...WARE...WAYNE.

THIS WATCH INCLUDES THE FOLLOWING ADJACENT COASTAL WATERS...
ALTAMAHA SOUND GA TO FERNANDINA BEACH FL OUT 20 NM.

LAW ENFORCEMENT AGENCIES...EMERGENCY MANAGEMENT OFFICIALS...STORM
SPOTTER GROUPS...AND OTHER INTERESTED CONCERNS SHOULD MONITOR THIS
SITUATION AND TAKE APPROPRIATE ACTION SHOULD SEVERE WEATHER APPROACH
YOUR AREA.

THIS AFTERNOON AND TONIGHT...A LINE OF THUNDERSTORMS PRECEDING A
STRONG FRONT WILL MOVE INTO THE AREA. THE LINE WILL INITIALLY MOVE
INTO SOUTHEAST GEORGIA AS AS WELL AS THE SUWANNEE VALLEY OF
NORTHEAST FLORIDA AFTER 5 PM...THEN WILL MOVE ACROSS THE BALANCE OF
NORTHEAST FLORIDA AND SOUTHEAST GEORGIA THROUGH THE OVERNIGHT.
AHEAD OF THIS LINE...SCATTERED THUNDERSTORMS WILL WILL BE POSSIBLE
ACROSS SOUTHEAST GEORGIA THIS AFTERNOON AS A STRONG WEATHER WEATHER
DISTURBANCE MOVES THROUGH THIS AREA.

SOME STORMS MAY BE SEVERE AND PRODUCE DAMAGING WINDS...HAIL...HEAVY
RAINFALL AND POSSIBLE TORNADOES. THE LINE OF STORMS WILL WEAKEN
TOWARD EARLY MORNING ON SUNDAY AND MOVE OFF THE COAST.

DUE TO LONG PERIOD OCEAN SWELLS...THE RIP CURRENT RISK WILL BE IN
THE HIGH CATEGORY AT AREA BEACHES. REFER TO THE SURF ZONE
FORECAST FOR ADDITIONAL INFORMATION.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY...

THERE WILL BE A HIGH FIRE DANGER OVER SECTIONS OF NORTHEAST FLORIDA
ON SUNDAY AFTERNOON DUE TO LOW RELATIVE HUMIDITY AND WINDY
CONDITIONS.

ANOTHER LOW PRESSURE AREA AND A FRONTAL BOUNDARY MAY PRODUCE A
ROUND OF SHOWERS AND THUNDERSTORMS TUESDAY NIGHT AND WEDNESDAY AND
POSSIBLY AGAIN ON THURSDAY.

.SPOTTER INFORMATION STATEMENT...

STORM SPOTTER ACTIVATION IS REQUESTED. PLEASE RELAY ANY REPORTS OF
SEVERE WEATHER OR FLOODING TO THE NATIONAL WEATHER SERVICE AND LOCAL
COUNTY EMERGENCY MANAGEMENT.

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

ECZ

In the hours before

Special weather statement, Mar 28, 1:33 PM EDT, 28 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
133 PM EDT SAT MAR 28 2009

GAZ132-281815-
COFFEE-
133 PM EDT SAT MAR 28 2009

...A SIGNIFICANT WEATHER ALERT HAS BEEN ISSUED FOR NORTHWESTERN
COFFEE COUNTY FOR STRONG WINDS...SMALL HAIL AND EXCESSIVE LIGHTNING
VALID UNTIL 215 PM EDT...

AT 133 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CENTERED 27 MILES WEST OF AMBROSE...OR 14 MILES
WEST OF OCILLA...MOVING EAST AT 50 MPH. THIS THUNDERSTORM WILL ALSO
AFFECT AREAS AROUND AMBROSE...BROXTON AND PRIDGEN THROUGH 215 PM
EDT. AT A MINIMUM...HAIL UP TO ONE HALF INCH IN DIAMETER...EXCESSIVE
CLOUD-TO-GROUND LIGHTNING AND GUSTY WINDS OF 45 TO 55 MPH CAN BE
EXPECTED ALONG WITH POSSIBLE DAMAGE. IF THIS THUNDERSTORM MAINTAINS
SEVERE LIMITS...A WARNING WILL BE REQUIRED.

REPORT DAMAGE TO THE NEAREST LAW ENFORCEMENT AGENCY OR YOUR COUNTY
EMERGENCY MANAGEMENT...OR YOU CAN CALL THE NATIONAL WEATHER SERVICE
IN JACKSONVILLE DIRECTLY AT 1-800-499-1594.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 800 PM EDT SATURDAY EVENING
FOR SOUTHEAST GEORGIA.

LAT...LON 3170 8284 3167 8283 3164 8284 3162 8283
      3156 8306 3160 8307 3167 8300 3177 8301
      3180 8297 3179 8287 3180 8284
TIME...MOT...LOC 1733Z 253DEG 42KT 3158 8334

ZAPPE

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 28, 4:20 AM EDTLake Wind AdvisoryJAXBaker, Bradford, Flagler, Gilchrist, Nassau, Suwannee and 1 more17 hr
Mar 28, 4:36 AM EDTFire Weather WatchJAXBaker, Bradford, Gilchrist, Nassau, Suwannee, Union23 hr
Mar 28, 5:37 AM EDTCoastal Flood StatementJAXFlagler, Nassau12 hr
Mar 28, 1:33 PM EDTSpecial Weather StatementJAXCoffee42 min
Mar 28, 2:47 PM EDTSpecial Weather StatementJAXAppling, Jeff Davis58 min
Mar 28, 3:25 PM EDTSpecial Weather StatementJAXCoffee, Jeff Davis50 min
Mar 28, 3:32 PM EDTSevere Thunderstorm WarningJAXCoffee, Jeff Davis43 min
Mar 28, 3:47 PM EDTAreal Flood AdvisoryJAXAppling, Bacon, Coffee, Jeff Davis3 hr
Mar 28, 4:12 PM EDTSevere Thunderstorm WarningJAXAppling, Bacon, Coffee, Jeff Davis, Wayne48 min
Mar 28, 4:29 PM EDTSpecial Weather StatementJAXBacon, Pierce, Wayne46 min
Mar 28, 4:35 PM EDTAreal Flood AdvisoryJAXAppling, Atkinson, Bacon, Brantley, Clinch, Coffee and 4 more2 hr
Mar 28, 4:51 PM EDTSevere Thunderstorm WarningJAXAppling, Bacon, Pierce, Wayne39 min
Mar 28, 5:37 PM EDTSpecial Weather StatementJAXAppling, Pierce, Wayne38 min
Mar 28, 5:47 PM EDTSevere Thunderstorm WarningJAXAtkinson, Clinch, Coffee, Jeff Davis, Ware43 min
Mar 28, 6:35 PM EDTSpecial Weather StatementJAXPierce, Wayne40 min
Mar 28, 6:44 PM EDTSpecial Weather StatementJAXBrantley46 min
Mar 28, 6:52 PM EDTAreal Flood AdvisoryJAXAppling, Atkinson, Bacon, Brantley, Camden, Charlton and 7 more3 hr
Mar 28, 7:33 PM EDTSpecial Weather StatementJAXCoffee42 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2009Every severe thunderstorm warning in 2009

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.