Alert archive / Florida / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 279, NWS Jacksonville, FL

August 25, 2000Flagler County, Florida

NWS Jacksonville, FL issued this severe thunderstorm warning at Aug 25, 2000, 6:59 PM EDT for Flagler County, Florida. It was in force for 46 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: Aug 25, 2000, 6:59 PM EDT (22:59 UTC)
Expired: Aug 25, 2000, 7:45 PM EDT
In force: 46 min
Issued by: NWS Jacksonville, FL
Area: Whole counties

County Flagler County, FL

The radar

The Jacksonville radar (KJAX), 119 km from the middle of the area, began a volume at 22:58 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.

What was reported inside it

Time	Report	Where	Remark
Aug 25, 7:15 PM EDT	Thunderstorm Wind	Espanola, FL	Large trees and power lines were blown down.

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.

The watch it was issued in

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

Issued	Product	Office	Lasted
Aug 25, 2:15 PM EDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Jacksonville, FL (KJAX), launched 12:00Z, 11.0 hours before the alert went out and 121 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: 3819 J/kg
Mixed-layer CIN: -57 J/kg
Mixed-layer LCL: 1017 m above ground
0-6 km bulk shear: 12 kt
0-1 km storm-relative helicity: 41 m²/s²
0-3 km storm-relative helicity: 61 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.

NWS Jacksonville, FL wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 25, 6:10 PM EDT, 49 minutes earlier.

Area forecast discussion, Aug 25, 6:10 PM EDT, 49 minutes before

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In the hours before

Special weather statement, Aug 25, 1:45 PM EDT, 5 hours 14 minutes before

FLZ020>025-030>033-035>038-040-GAZ132>136-149>154-162>166-260000-

NORTHEAST FLORIDA/SOUTHEAST GEORGIA HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE JACKSONVILLE FL
145 PM EDT FRI AUG 25 2000

SCATTERED SHOWERS AND THUNDERSTORMS WILL INCREASE IN COVERAGE AND
INTENSITY THIS AFTERNOON AND EVENING DUE TO DAYTIME HEATING AND
ATMOSPHERIC INSTABILITY.  IN ADDITION...THE STORMS WILL BE ENHANCED
LATE THIS AFTERNOON BY AN UPPER LEVEL WEATHER DISTURBANCE MOVING
INTO THE REGION.  THESE STORMS MAY BECOME SEVERE AND WILL BE CAPABLE
OF PRODUCING LARGE HAIL...DAMAGING GUSTY WINDS...AND FREQUENT
LIGHTNING.  STORM SPOTTER ACTIVATION IS REQUESTED.

FOR ADDITIONAL INFORMATION...VISIT T-HE NATIONAL WEATHER SERVICE IN
JACKSONVILLE WEBSITE ON THE INTERNET AT WWW.SRH.NOAA.GOV/JAX.

DANIEL

Special weather statement, Aug 25, 2:15 PM EDT, 4 hours 44 minutes before

FLZ020>025-030>033-035>038-040-GAZ132>136-149>154-162>166-260000-

NORTHEAST FLORIDA/SOUTHEAST GEORGIA HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE JACKSONVILLE FL
215 PM EDT FRI AUG 25 2000

...SEVERE THUNDERSTORM WATCH FOR THE EXTREME SOUTHEAST GEORGIA
COUNTIES OF CAMDEN...CLINCH...CHARLTON...ECHOLS...GLYNN...AND WARE
UNTIL 8 PM.

...SEVERE THUNDERSTORM WATCH FOR THE NORTHEAST FLORIDA COUNTIES OF
ALACHUA...BAKER...BRADFORD...CLAY...COLUMBIA...DUVAL...FLAGLER...
GILCHRIST...HAMILTON...MARION...NASSAU...PUTNAM...ST. JOHNS...
SUWANNEE...AND UNION UNTIL 8 PM.

SCATTERED SHOWERS AND THUNDERSTORMS WILL INCREASE IN COVERAGE AND
INTENSITY THIS AFTERNOON AND EVENING DUE TO DAYTIME HEATING AND
ATMOSPHERIC INSTABILITY.  IN ADDITION...THE STORMS WILL BE ENHANCED
LATE THIS AFTERNOON BY AN UPPER LEVEL WEATHER DISTURBANCE MOVING
INTO THE REGION.  THESE STORMS MAY BECOME SEVERE AND WILL BE CAPABLE
OF PRODUCING LARGE HAIL...DAMAGING GUSTY WINDS...AND FREQUENT
LIGHTNING.  STORM SPOTTER ACTIVATION IS REQUESTED.

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

DANIEL

Local storm report, Aug 25, 3:32 PM EDT, 3 hours 27 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSONVILLE, FL
332 PM EDT FRI AUG 25 2000

TIME(EDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0355 PM    2 1/2 NE GLYNCO AIRPORT   GA   60 MPH TSTM WIND GUST
08/25/00   GLYNN                          SKYWARN SPOTTER REPORTED
                                          LARGE LIMBS WERE BLOWN
                                          DOWN.

0215 PM    5 W BURNSWICK             GA   WIND DAMAGE
08/25/00   GLYNN                          UTILITY COMPANY REPORTED
                                          LARGE TREES AND POWER LINES
                                          WER"E BLOWN DOWN

FRJ

Special weather statement, Aug 25, 5:22 PM EDT, 1 hour 37 minutes before

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Special weather statement, Aug 25, 6:13 PM EDT, 46 minutes before

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Local storm report, Aug 25, 6:47 PM EDT, 12 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
Aug 25, 3:30 PM EDT	Severe Thunderstorm Warning	JAX	Duval	60 min
Aug 25, 4:43 PM EDT	Severe Thunderstorm Warning	JAX	Suwannee	62 min
Aug 25, 4:49 PM EDT	Severe Thunderstorm Warning	JAX	Saint Johns	41 min
Aug 25, 4:59 PM EDT	Severe Thunderstorm Warning	JAX	Columbia	61 min
Aug 25, 5:15 PM EDT	Severe Thunderstorm Warning	JAX	Union	45 min
Aug 25, 5:21 PM EDT	Severe Thunderstorm Warning	JAX	Clay	54 min
Aug 25, 5:50 PM EDT	Severe Thunderstorm Warning	JAX	Putnam	55 min
Aug 25, 1:50 PM EDT	Severe Thunderstorm Warning	JAX	Camden, Glynn	60 min
Aug 25, 2:29 PM EDT	Severe Thunderstorm Warning	JAX	Clinch, Echols, Ware	61 min
Aug 25, 3:05 PM EDT	Severe Thunderstorm Warning	JAX	Charlton	55 min

Nearby

Severe Thunderstorm Warnings in Florida, 2000 Every severe thunderstorm warning in 2000

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; radar from the NEXRAD Level II archive.