Alert archive / Florida / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 107, NWS Tampa Bay, FL

September 9, 2008Charlotte County, Sarasota County, Florida

NWS Tampa Bay, FL issued this severe thunderstorm warning at Sep 9, 2008, 4:40 PM EDT for Charlotte County, Sarasota 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
Sep 9, 2008, 4:40 PM EDT (20:40 UTC)
Expired
Sep 9, 2008, 5:30 PM EDT
In force
50 min
Issued by
NWS Tampa Bay, FL
Area
Storm-based polygon

Counties Charlotte County, FL, Sarasota County, FL

The radar

The Tampa radar (KTBW), 78 km from the middle of the area, began a volume at 20:41 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

Miami, FL (KMFL), launched 12:00Z, 8.7 hours before the alert went out and 230 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-pSkew-T log-p diagram, Miami, FL at 12:00Z on 2008-09-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2105 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Miami, FL at 12:00Z on 2008-09-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 167 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
2105 J/kg
Mixed-layer CIN
-3 J/kg
Mixed-layer LCL
782 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
167 m²/s²
0-3 km storm-relative helicity
205 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The office that day

Everything else NWS Tampa Bay, FL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Sep 9, 9:05 AM EDTLake Wind AdvisoryTBWDeSoto, Hardee, Highlands10 hr
Sep 9, 10:48 AM EDTSpecial Marine WarningTBW42 min
Sep 9, 3:53 PM EDTSpecial Weather StatementTBWSarasota37 min
Sep 9, 4:24 PM EDTSpecial Marine WarningTBW51 min
Sep 9, 4:30 PM EDTSpecial Marine WarningTBW90 min
Sep 9, 4:48 PM EDTSevere Thunderstorm WarningTBWPinellas42 min
Sep 9, 5:14 PM EDTSevere Thunderstorm WarningTBWSarasota31 min
Sep 9, 5:18 PM EDTSpecial Marine WarningTBW42 min
Sep 9, 6:11 PM EDTSpecial Marine WarningTBW94 min

Nearby

Severe Thunderstorm Warnings in Florida, 2008Every severe thunderstorm warning in 2008

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.