Alert archive / Florida / Severe Thunderstorm Warnings in 2007
Severe Thunderstorm Warning 76, NWS Jacksonville, FL
NWS Jacksonville, FL issued this severe thunderstorm warning at Jun 11, 2007, 3:43 PM EDT for Duval County, Nassau County, Florida. It was in force for 47 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
- Jun 11, 2007, 3:43 PM EDT (19:43 UTC)
- Expired
- Jun 11, 2007, 4:30 PM EDT
- In force
- 47 min
- Issued by
- NWS Jacksonville, FL
- Area
- Counties, with a storm outline in the text
Counties Duval County, FL, Nassau County, FL
The radar
The Jacksonville radar (KJAX), 1 km from the middle of the area, began a volume at 19:44 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
Jacksonville, FL (KJAX), launched 12:00Z, 7.7 hours before the alert went out and 3 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
- 1949 J/kg
- Mixed-layer CIN
- -73 J/kg
- Mixed-layer LCL
- 818 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- 8 m²/s²
- 0-3 km storm-relative helicity
- 49 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 Jun 11, 2:58 PM EDT, 45 minutes earlier.
Area forecast discussion, Jun 11, 2:58 PM EDT, 45 minutes before
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</html>Hazardous weather outlook, Jun 11, 2:04 PM EDT, 1 hour 39 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE JACKSONVILLE FL 204 PM EDT MON JUN 11 2007 FLZ020>025-030>033-035>038-040-GAZ132>136-149>154-162>166-120200- 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- 204 PM EDT MON JUN 11 2007 THIS OUTLOOK IS FOR NORTHEAST FLORIDA AND SOUTHEAST GEORGIA. .DAY ONE...REST OF TODAY AND TONIGHT... .HEADLINES... ...SEVERE THUNDERSTORM WATCH 380 IN EFFECT UNTIL 10 PM EDT THIS EVENING FOR SOUTHEAST GEORGIA AND THE ADJACENT COASTAL WATERS... ...HIGH FIRE DANGER DUE TO LOW RELATIVE HUMIDITY... A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 10 PM EDT THIS EVENING FOR SOUTHEAST GEORGIA AND THE ADJACENT COASTAL WATERS. A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE FAVORABLE FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE WARNINGS. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES. OUTSIDE OF THE CURRENT WATCH...THERE IS A SLIGHT RISK OF SEVERE WEATHER FOR NORTHEAST FLORIDA. THIS MEANS THE POSSIBILITY EXISTS FOR SEVERE THUNDERSTORM DEVELOPMENT. THROUGHOUT SOUTHEAST GEORGIA AND NORTHEAST FLORIDA THE PRIMARY CONCERNS WILL BE LARGE HAIL AND DAMAGING WINDS. LOCALLY HEAVY RAINFALL IS ALSO POSSIBLE. HIGH TEMPERATURES WILL BE IN THE MID TO UPPER 90S AND HEAT INDICES WILL APPROACH 100 LATER THIS AFTERNOON. THE COMBINATION OF HOT TEMPERATURES AND LOW RELATIVE HUMIDITY WILL CREATE A HIGH FIRE DANGER ESPECIALLY OVER THE SUWANNEE VALLEY OF NORTHEAST FLORIDA. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY... AN UPPER LEVEL DISTURBANCE IS FORECAST TO MOVE SOUTHWARD THROUGH THE MID ATLANTIC STATES LATE TODAY AND INFLUENCE OUR AREA TUESDAY AND WEDNESDAY. THIS FEATURE WILL PROVIDE THE NECESSARY INGREDIENTS FOR INCREASED THUNDERSTORM ACTIVITY ACROSS NORTHEAST FLORIDA AND SOUTHEAST GEORGIA. THERE WILL BE A SLIGHT RISK OF SEVERE THUNDERSTORMS AGAIN ON TUESDAY AFTERNOON AND EVENING. .SPOTTER INFORMATION STATEMENT... SPOTTERS SHOULD SELF ACTIVATE IF SEVERE WEATHER THREATENS THEIR AREA. FOR ADDITIONAL INFORMATION...VISIT THE NATIONAL WEATHER SERVICE IN JACKSONVILLE WEBSITE ON THE INTERNET AT WWW.SRH.NOAA.GOV/JAX. SANDRIK/ZAPPE
In the hours before
Special weather statement, Jun 11, 2:34 PM EDT, 1 hour 9 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE JACKSONVILLE FL 234 PM EDT MON JUN 11 2007 FLZ024-111915- NASSAU- 234 PM EDT MON JUN 11 2007 ...A SIGNIFICANT WEATHER ALERT HAS BEEN ISSUED FOR NORTHWEST NASSAU COUNTY FOR STRONG WINDS VALID UNTIL 315 PM EDT... AT 234 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG THUNDERSTORM CENTERED 8 MILES NORTHWEST OF HILLIARD...OR 7 MILES SOUTH OF FOLKSTON...MOVING SOUTHEAST AT 5 TO 10 MPH. THIS STRONG THUNDERSTORM WILL ALSO AFFECT AREAS AROUND HILLIARD AND BOULOGNE THROUGH 315 PM EDT. GUSTY WINDS OF 40 TO 50 MPH CAN BE EXPECTED ALONG WITH POSSIBLE MINOR WIND DAMAGE. REPORT DAMAGE TO THE NEAREST LAW ENFORCEMENT AGENCY OR YOUR COUNTY EMERGENCY MANAGEMENT. SHASHY
Special weather statement, Jun 11, 2:39 PM EDT, 1 hour 4 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE JACKSONVILLE FL 239 PM EDT MON JUN 11 2007 GAZ135-111945- APPLING- 239 PM EDT MON JUN 11 2007 ...A SIGNIFICANT WEATHER ALERT HAS BEEN ISSUED FOR APPLING COUNTY FOR STRONG WINDS...SMALL HAIL AND EXCESSIVE LIGHTNING VALID UNTIL 345 PM EDT... AT 239 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG THUNDERSTORM CENTERED 10 MILES NORTH OF SURRENCY...OR OVER THE ALTAMAHA RIVER...MOVING SOUTH AT 10 MPH. THIS STRONG THUNDERSTORM WILL AFFECT MAINLY RURAL AREAS EAST OF BAXLEY AND NORTH OF SURRENCY THROUGH 345 PM EDT. 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 MINOR DAMAGE. IF FURTHER INTENSIFICATION OCCURS A WARNING MAY BE REQUIRED. THE AREA REMAINS UNDER A SEVERE THUNDERSTORM WATCH. REPORT DAMAGE TO THE NEAREST LAW ENFORCEMENT AGENCY OR YOUR COUNTY EMERGENCY MANAGEMENT. ZAPPE
Special weather statement, Jun 11, 2:48 PM EDT, 55 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE JACKSONVILLE FL 248 PM EDT MON JUN 11 2007 GAZ136-111945- WAYNE- 248 PM EDT MON JUN 11 2007 ...A SIGNIFICANT WEATHER ALERT HAS BEEN ISSUED FOR NORTHWEST WAYNE COUNTY FOR STRONG WINDS...SMALL HAIL AND EXCESSIVE LIGHTNING VALID UNTIL 345 PM EDT... AT 248 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED STRONG THUNDERSTORMS NEAR THE ALTAMAHA RIVER FROM EXTREME NORTHEAST APPLING COUNTY TO EXTREME SOUTHERN LONG COUNTY...MOVING SOUTHEAST AT 5 MPH. THESE STRONG THUNDERSTORMS WILL AFFECT MAINLY RURAL AREAS NORTHWEST OF ODUM THROUGH 345 PM EDT...AS WELL AS IMPACTING STATE ROAD 169. 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 MINOR DAMAGE. IF FURTHER INTENSIFICATION OCCURS A WARNING MAY BE REQUIRED. THE AREA REMAINS UNDER A SEVERE THUNDERSTORM WATCH. REPORT DAMAGE TO THE NEAREST LAW ENFORCEMENT AGENCY OR YOUR COUNTY EMERGENCY MANAGEMENT. ZAPPE
Special weather statement, Jun 11, 2:57 PM EDT, 46 minutes before
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</html>Special weather statement, Jun 11, 3:02 PM EDT, 41 minutes before
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</html>Special weather statement, Jun 11, 3:13 PM EDT, 30 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 |
|---|---|---|---|---|
| Jun 11, 4:17 AM EDT | Red Flag Warning | JAX | Baker, Suwannee, Union | 14 hr |
| Jun 11, 3:13 PM EDT | Severe Thunderstorm Warning | JAX | Flagler | 35 min |
| Jun 11, 2:25 PM EDT | Severe Thunderstorm Warning | JAX | Charlton | 50 min |
| Jun 11, 2:54 PM EDT | Severe Thunderstorm Warning | JAX | Appling, Wayne | 66 min |
| Jun 11, 3:25 PM EDT | Severe Thunderstorm Warning | JAX | Brantley | 50 min |
| Jun 11, 3:56 PM EDT | Severe Thunderstorm Warning | JAX | Appling, Pierce, Wayne | 49 min |
| Jun 11, 4:45 PM EDT | Severe Thunderstorm Warning | JAX | Pierce | 30 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.