Alert archive / Georgia / Severe Thunderstorm Warnings in 2009
Severe Thunderstorm Warning 151, NWS Jacksonville, FL
NWS Jacksonville, FL issued this severe thunderstorm warning at Jun 18, 2009, 9:14 PM EDT for Brantley County, Pierce County, Wayne County, Georgia. It was in force for 22 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 18, 2009, 9:14 PM EDT (01:14 UTC)
- Expired
- Jun 18, 2009, 9:36 PM EDT
- In force
- 22 min
- Issued by
- NWS Jacksonville, FL
- Area
- Storm-based polygon
Counties Brantley County, GA, Pierce County, GA, Wayne County, GA
The radar
The Jacksonville radar (KJAX), 103 km from the middle of the area, began a volume at 01:17 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jun 18, 6:22 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Jacksonville, FL (KJAX), launched 00:00Z, 1.2 hours before the alert went out and 102 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
- 1973 J/kg
- Mixed-layer CIN
- -43 J/kg
- Mixed-layer LCL
- 1130 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 40 m²/s²
- 0-3 km storm-relative helicity
- 120 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 18, 2:55 PM EDT, 6 hours 19 minutes earlier.
Area forecast discussion, Jun 18, 2:55 PM EDT, 6 hours 19 minutes before
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</html>Hazardous weather outlook, Jun 18, 6:34 PM EDT, 2 hours 40 minutes before
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Special weather statement, Jun 18, 6:42 PM EDT, 2 hours 32 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 18, 8:08 PM EDT | Special Weather Statement | JAX | Hamilton | 52 min |
| Jun 18, 9:00 PM EDT | Special Weather Statement | JAX | Hamilton, Suwannee | 45 min |
| Jun 18, 9:04 PM EDT | Special Marine Warning | JAX | 116 min | |
| Jun 18, 9:06 PM EDT | Severe Thunderstorm Warning | JAX | Hamilton, Suwannee | 39 min |
| Jun 18, 9:11 PM EDT | Areal Flood Advisory | JAX | Hamilton, Suwannee | 2 hr |
| Jun 18, 10:34 PM EDT | Severe Thunderstorm Warning | JAX | Baker, Columbia, Hamilton, Suwannee | 56 min |
| Jun 18, 10:50 PM EDT | Severe Thunderstorm Warning | JAX | Duval, Nassau | 55 min |
| Jun 18, 11:04 PM EDT | Severe Thunderstorm Warning | JAX | Nassau | 32 min |
| Jun 18, 11:11 PM EDT | Special Weather Statement | JAX | Columbia, Gilchrist, Suwannee | 49 min |
| Jun 18, 11:28 PM EDT | Special Weather Statement | JAX | Nassau | 47 min |
| Jun 18, 11:32 PM EDT | Special Weather Statement | JAX | Alachua, Bradford | 43 min |
| Jun 18, 11:47 PM EDT | Special Weather Statement | JAX | Clay | 43 min |
| Jun 19, 1:29 PM EDT | Heat Advisory | JAX | Baker, Bradford, Flagler, Gilchrist, Nassau, Suwannee and 1 more | 55 hr |
| Jun 18, 8:06 PM EDT | Special Weather Statement | JAX | Atkinson | 24 min |
| Jun 18, 8:11 PM EDT | Severe Thunderstorm Warning | JAX | Clinch, Echols | 49 min |
| Jun 18, 8:19 PM EDT | Severe Thunderstorm Warning | JAX | Appling, Jeff Davis, Wayne | 41 min |
| Jun 18, 8:46 PM EDT | Severe Thunderstorm Warning | JAX | Appling, Bacon, Coffee, Jeff Davis, Wayne | 44 min |
| Jun 18, 8:57 PM EDT | Severe Thunderstorm Warning | JAX | Appling, Atkinson, Bacon, Coffee, Pierce, Ware | 48 min |
| Jun 18, 9:08 PM EDT | Special Weather Statement | JAX | Coffee | 52 min |
| Jun 18, 9:19 PM EDT | Severe Thunderstorm Warning | JAX | Glynn | 56 min |
| Jun 18, 9:37 PM EDT | Severe Thunderstorm Warning | JAX | Atkinson, Clinch, Coffee, Pierce, Ware | 25 min |
| Jun 18, 9:53 PM EDT | Special Weather Statement | JAX | Ware | 67 min |
| Jun 18, 9:57 PM EDT | Severe Thunderstorm Warning | JAX | Camden | 63 min |
| Jun 18, 10:00 PM EDT | Severe Thunderstorm Warning | JAX | Atkinson, Brantley, Charlton, Clinch, Echols, Pierce and 1 more | 45 min |
Nearby
Severe Thunderstorm Warnings in Georgia, 2009Every severe thunderstorm warning in 2009
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.