Alert archive / Georgia / Severe Thunderstorm Warnings in 1991

Severe Thunderstorm Warning 13, NWS Jacksonville, FL

March 3, 1991Camden County, Georgia; Nassau County, Florida

NWS Jacksonville, FL issued this severe thunderstorm warning at Mar 3, 1991, 7:12 AM EST for Camden County, Georgia; Nassau County, Florida. It was in force for 48 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: Mar 3, 1991, 7:12 AM EST (12:12 UTC)
Expired: Mar 3, 1991, 8:00 AM EST
In force: 48 min
Issued by: NWS Jacksonville, FL
Area: Whole counties

Counties Nassau County, FL, Camden County, GA

What was reported inside it

Time	Report	Where	Remark
Mar 3, 7:30 AM EST	Thunderstorm Wind 0	Nassau, FL

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.

The nearest sounding before it

Jacksonville, FL (KAYS), launched 12:00Z, 0.2 hours before the alert went out and 30 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: NaN m above ground
0-6 km bulk shear: 54 kt
0-1 km storm-relative helicity: 90 m²/s²
0-3 km storm-relative helicity: 265 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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.

In the hours before

Special weather statement, Mar 3, 2:20 AM EST, 4 hours 52 minutes before

FLZ008-007-009-GAZ013-015-030915-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
220 AM EST SUN MAR 3 1991

...TORNADO WATCH #26 IS IN EFFECT FOR NORTHEAST FLORIDA AND SOUTHEAST
GEORGIA UNTIL 500 AM...
...A FLOOD WATCH IS IN EFFECT FOR DIXIE...LEVY...TAYLOR...GILCHRIST...
ALACHUA...UNION...LAFAYETTE...AND THE SOUTHERN HALF OF SUWANNEE AND
COLUMBIA COUNTIES...
...A GALE WARNING IS IN EFFECT FOR THE ATLANTIC COASTAL WATERS FROM
SAVANNAH SOUTH TO ST AUGUSTINE AND THE GULF COASTAL WATERS FROM
VENICE NORTH TO APPALACHICOLA...
...A LAKE WIND ADVISORY IS IN EFFECT FOR AREA LAKES...
...A HIGH WIND WATCH IS IN EFFECT FOR NORTHEAST FLORIDA...

AT 220 AM EST NATIONAL WEATHER SERVICE RADARS INDICATED A LARGE AREA
OF RAIN ACROSS THE SOUTHERN HALF OF GEORGIA AND ACROSS NORTH FLORIDA
FROM THE SUWANNEE RIVER WEST INTO THE PANHANDLE. A FEW SHOWERS HAVE
DEVELOPED IN SUWANNEE AND COLUMBIA COUNTIES AND MOVED INTO THE
OKEFENOKEE SWAMP AND NORTHWEST NASSAU COUNTY.

THUNDERSTORMS CONTAINING VERY HEAVY RAIN AND STRONG GUSTY WINDS
WERE LOCATED IN SOUTH GEORGIA...MAINLY BETWEEN ALMA AND VALDOSTA.
IN FLORIDA THE STRONGEST THUNDERSTORMS WERE LOCATED FROM MADISON
WEST TO TALLAHASSEE AND PANAMA CITY AND INTO THE NORTHERN GULF OF
MEXICO.

AS THUNDERSTORMS MOVE INTO NORTHEAST FLORIDA LATER THIS MORNING THEY
WILL HAVE THE POTENTIAL TO PRODUCE SEVERE WEATHER...INCLUDING
TORNADOES. LATER IN THE DAY WINDS WILL PICK UP ACROSS NORTHEAST
FLORIDA...POSSIBLY CAUSING DAMAGE FROM WEAKENED TREES.

RESIDENTS OF NORTHEAST FLORIDA ARE URGED TO REMAIN ALERT TO THIS
SITUATION AND PLAN ACCORDINGLY. BE PREPARED TO SEEK SAFE SHELTER
IF SEVERE WEATHER IS SIGHTED OR HEARD...OR IF A WANRNING IS ISSUED
FOR YOUR AREA. TUNE TO NOAA WEATHER RADIO FOR THE LATEST INFORMATION.

Special weather statement, Mar 3, 4:15 AM EST, 2 hours 57 minutes before

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Special weather statement, Mar 3, 5:43 AM EST, 1 hour 29 minutes before

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Special weather statement, Mar 3, 6:37 AM EST, 35 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 3, 3:11 AM EST	Severe Thunderstorm Warning	JAX	Coffee	49 min
Mar 3, 3:43 AM EST	Tornado Warning	JAX	Appling, Tattnall	47 min
Mar 3, 4:22 AM EST	Severe Thunderstorm Warning	JAX	Bulloch, Evans	53 min
Mar 3, 5:47 AM EST	Flash Flood Warning	JAX	Lowndes	58 min
Mar 3, 5:47 AM EST	Severe Thunderstorm Warning	JAX	Lowndes	58 min
Mar 3, 6:07 AM EST	Severe Thunderstorm Warning	JAX	Bacon, Brantley, Pierce, Ware	68 min
Mar 3, 7:05 AM EST	Severe Thunderstorm Warning	JAX	Long, McIntosh, Wayne	55 min
Mar 3, 7:05 AM EST	Severe Thunderstorm Warning	JAX	Glynn	55 min
Mar 3, 7:27 AM EST	Severe Thunderstorm Warning	JAX	Bryan, Liberty	48 min
Mar 3, 7:27 AM EST	Severe Thunderstorm Warning	JAX	Chatham	48 min
Mar 3, 1:17 PM EST	Severe Thunderstorm Warning	JAX	Long, Wayne	43 min
Mar 3, 1:32 PM EST	Severe Thunderstorm Warning	JAX	Bryan, Liberty	43 min
Mar 3, 2:05 PM EST	Severe Thunderstorm Warning	JAX	Chatham, Effingham	40 min
Mar 3, 9:30 AM EST	Severe Thunderstorm Warning	JAX	Putnam	60 min
Mar 3, 10:08 AM EST	Severe Thunderstorm Warning	JAX	Saint Johns	67 min
Mar 3, 10:27 AM EST	Tornado Warning	JAX	Putnam	33 min

Nearby

Severe Thunderstorm Warnings in Georgia, 1991 Severe Thunderstorm Warnings in Florida, 1991 Every severe thunderstorm warning in 1991

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.