Alert archive / Florida / Severe Thunderstorm Warnings in 2007
Severe Thunderstorm Warning 192, NWS Jacksonville, FL
NWS Jacksonville, FL issued this severe thunderstorm warning at Jul 31, 2007, 2:40 PM EDT for Flagler County, Florida. It was in force for 50 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
- Jul 31, 2007, 2:40 PM EDT (18:40 UTC)
- Expired
- Jul 31, 2007, 3:30 PM EDT
- In force
- 50 min
- Issued by
- NWS Jacksonville, FL
- Area
- Counties, with a storm outline in the text
County Flagler County, FL
The radar
The Jacksonville radar (KJAX), 119 km from the middle of the area, began a volume at 18:40 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 nearest sounding before it
Cape Canaveral, FL (KXMR), launched 12:00Z, 6.7 hours before the alert went out and 135 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.
- Mixed-layer CAPE
- 2127 J/kg
- Mixed-layer CIN
- -2 J/kg
- Mixed-layer LCL
- 540 m above ground
- 0-6 km bulk shear
- 12 kt
- 0-1 km storm-relative helicity
- 18 m²/s²
- 0-3 km storm-relative helicity
- 15 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 Jul 31, 2:40 PM EDT, 0 minutes earlier.
Area forecast discussion, Jul 31, 2:40 PM EDT, 0 minutes before
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HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE JACKSONVILLE FL 1055 AM EDT TUE JUL 31 2007 FLZ020>025-030>033-035>038-040-GAZ132>136-149>154-162>166-010948- 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- 1055 AM EDT TUE JUL 31 2007 THIS OUTLOOK IS FOR NORTHEAST FLORIDA AND SOUTHEAST GEORGIA. .DAY ONE...TODAY AND TONIGHT... ...A FEW STRONG THUNDERSTORMS EXPECTED THIS AFTERNOON AND EVENING... ...LOCALLY HEAVY RAINFALL IN THUNDERSTORMS... A FEW STRONG THUNDERSTORMS ARE EXPECTED OVER SOUTHEAST GEORGIA AND NORTHEAST FLORIDA THIS AFTERNOON AND EVENING. GUSTY WINDS TO 45 MPH...SMALL HAIL AND FREQUENT LIGHTNING ARE EXPECTED IN THE STRONGER STORMS. IN ADDITION...LOCALLY HEAVY RAINFALL FROM SLOW- MOVING STORMS WILL CAUSE FLOODING OF POOR DRAINAGE AREAS. SCATTERED STORMS WILL FORM BY EARLY AFTERNOON INLAND AND BECOME MORE NUMEROUS THROUGHOUT THE AFTERNOON WHILE MOVING SOUTH AT 10 MPH. BE ALERT TO CHANGING WEATHER CONDITIONS AND BE PREPARED TO SEEK SHELTER IF HAZARDOUS WEATHER APPROACHES YOUR LOCATION. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY... SCATTERED TO NUMEROUS THUNDERSTORMS ARE EXPECTED THROUGH THE PERIOD. ISOLATED SEVERE STORMS WITH WET MICRO-BURSTS WILL BE POSSIBLE AS A SERIES OF UPPER LEVEL DISTURBANCES MOVE THROUGH THE REGION. LOCALLY HEAVY RAINFALL AND POOR DRAINAGE FLOODING WILL ALSO BE POSSIBLE THROUGH THE WEEKEND. .SPOTTER INFORMATION STATEMENT... SPOTTERS ARE REQUESTED TO SELF-ACTIVATE IF WARNINGS ARE ISSUED OR IF FLOODING IS OBSERVED. FOR ADDITIONAL INFORMATION...VISIT THE NATIONAL WEATHER SERVICE IN JACKSONVILLE WEBSITE ON THE INTERNET AT WEATHER.GOV/JAX. MKT/ARS
In the hours before
Local storm report, Jul 31, 11:51 AM EDT, 2 hours 49 minutes before
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</html>Local storm report, Jul 31, 11:55 AM EDT, 2 hours 45 minutes before
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</html>Special weather statement, Jul 31, 12:09 PM EDT, 2 hours 31 minutes before
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</html>Special weather statement, Jul 31, 12:41 PM EDT, 1 hour 59 minutes before
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</html>Special weather statement, Jul 31, 1:29 PM EDT, 1 hour 11 minutes before
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</html>Special weather statement, Jul 31, 2:22 PM EDT, 18 minutes before
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</html>The office that day
Everything else NWS Jacksonville, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 31, 3:06 PM EDT | Severe Thunderstorm Warning | JAX | Clay | 39 min |
| Jul 31, 3:32 PM EDT | Severe Thunderstorm Warning | JAX | Putnam | 43 min |
| Jul 31, 4:12 PM EDT | Severe Thunderstorm Warning | JAX | Putnam | 48 min |
| Jul 31, 4:26 PM EDT | Special Marine Warning | JAX | 64 min |
Nearby
Severe Thunderstorm Warnings in Florida, 2007Every severe thunderstorm warning in 2007
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.