Alert archive / Florida / Severe Thunderstorm Warnings in 2013
Severe Thunderstorm Warning 190, NWS Tallahassee, FL
NWS Tallahassee, FL issued this severe thunderstorm warning at Sep 1, 2013, 5:34 PM CDT for Walton County, Florida; Geneva County, Alabama. It was in force for 41 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
- Sep 1, 2013, 5:34 PM CDT (22:34 UTC)
- Expired
- Sep 1, 2013, 6:15 PM CDT
- In force
- 41 min
- Issued by
- NWS Tallahassee, FL
- Area
- Storm-based polygon
Counties Geneva County, AL, Walton County, FL
The radar
The Eglin Afb radar (KEVX), 33 km from the middle of the area, began a volume at 22:34 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
Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 10.6 hours before the alert went out and 171 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
- 1673 J/kg
- Mixed-layer CIN
- -1 J/kg
- Mixed-layer LCL
- 610 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- -48 m²/s²
- 0-3 km storm-relative helicity
- -5 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 Tallahassee, FL wrote its last area forecast discussion before this severe thunderstorm warning went out at Sep 1, 2:55 PM CDT, 2 hours 39 minutes earlier.
Area forecast discussion, Sep 1, 2:55 PM CDT, 2 hours 39 minutes before
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Special weather statement, Sep 1, 3:08 PM CDT, 2 hours 26 minutes before
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</html>The office that day
Everything else NWS Tallahassee, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 1, 6:09 PM CDT | Special Weather Statement | TAE | Holmes | 36 min |
| Sep 1, 3:08 PM CDT | Special Weather Statement | TAE | Thomas | 37 min |
| Sep 1, 3:26 PM CDT | Areal Flood Advisory | TAE | Henry | 3 hr |
Nearby
Severe Thunderstorm Warnings in Florida, 2013Severe Thunderstorm Warnings in Alabama, 2013Every severe thunderstorm warning in 2013
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.