Alert archive / Florida / Severe Thunderstorm Warnings in 1993

Severe Thunderstorm Warning 2, NWS Jacksonville, FL

January 8, 1993Bradford County, Clay County, Florida

NWS Jacksonville, FL issued this severe thunderstorm warning at Jan 8, 1993, 11:24 AM EST for Bradford County, Clay County, Florida. It was in force for 66 min.

The area

The counties it named.

The facts

Issued: Jan 8, 1993, 11:24 AM EST (16:24 UTC)
Expired: Jan 8, 1993, 12:30 PM EST
In force: 66 min
Issued by: NWS Jacksonville, FL
Area: Whole counties

Counties Bradford County, FL, Clay County, FL

The nearest sounding before it

Jacksonville, FL (KAYS), launched 12:00Z, 4.4 hours before the alert went out and 67 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: 621 m above ground
0-6 km bulk shear: 53 kt
0-1 km storm-relative helicity: -137 m²/s²
0-3 km storm-relative helicity: 71 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, Jan 8, 5:34 AM EST, 5 hours 50 minutes before

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Special weather statement, Jan 8, 10:30 AM EST, 54 minutes before

FLZ008-007-009-081830-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
1026 AM EST FRI JAN 8 1993

AT 1025 AM EST NATIONAL WEATHER SERVICE RADARS SHOW A LARGE AREA OF RAIN
WITH INBEDED THUNDERSTORMS COVERS A LARGE AREA OF NORTHEAST FLORIDA AND
SOUTHEAST GEORGIA AND EXTENDS INTO THE GULF OF MEXICO FOR SEVERVAL
HUNDRED MILES SOUTH OF CEDAR KEY.

OF PARTICULAR INTEREST IS CLUSTERS OF THUNDERSTORMS ALONG THE LEADING
EDGE THE RAIN AREA. THE CLUSTERS ARE LOCATED OVER WESTERN NASSAU..DUVAL
COUNTIES AND SOUTHWEST ACROSS BAKER
..COLUMBIA..SUWANNEE..UNION..GILCHRIST AND LAFAYETTE COUNTIES. THE
THUNDERSTORMS ARE MOVING NORTHEAST AT SPEEDS NEAR 25 MPH AND MAY CONTAIN
STRONG GUSTY WINDS..HAIL AND LOCALLY HEAVY RAINS.

THE STORMS HAVE PRODUCED 3 TO 4 INCH RAINS IN THE PANHANDLE EARLIER THIS
MORNING. DRIVE WITH CAUTION WHEN TRAVELING OVER LOW LYING BRIDGES..AND
TRIBUTARIES..DRAINAGE DITCHES.

The office that day

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

Issued	Product	Office	Counties	Lasted
Jan 8, 11:24 AM EST	Severe Thunderstorm Warning	JAX	Duval	66 min
Jan 8, 11:36 AM EST	Tornado Warning	JAX	Clay, Duval	69 min
Jan 8, 11:36 AM EST	Tornado Warning	JAX	Bradford	69 min
Jan 8, 2:09 PM EST	Severe Thunderstorm Warning	JAX	Clay, Putnam, Saint Johns	66 min
Jan 8, 4:45 AM EST	Severe Thunderstorm Warning	JAX	Toombs	60 min

Nearby

Severe Thunderstorm Warnings in Florida, 1993 Every severe thunderstorm warning in 1993

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.