Alert archive / Florida / Flash Flood Warnings in 1991

Flash Flood Warning 9, NWS Tallahassee, FL

March 6, 1991Leon County, Florida

NWS Tallahassee, FL issued this flash flood warning at Mar 6, 1991, 9:45 PM EST for Leon County, Florida. It was in force for 12 hr.

The area

The counties it named.

The facts

Issued
Mar 6, 1991, 9:45 PM EST (02:45 UTC)
Expired
Mar 7, 1991, 9:30 AM EST
In force
12 hr
Issued by
NWS Tallahassee, FL
Area
Whole counties

County Leon County, FL

The nearest sounding before it

Apalachicola Mun, FL (KAQQ), launched 00:00Z, 2.8 hours before the alert went out and 107 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, Apalachicola Mun, FL at 00:00Z on 1991-03-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 26 joules per kilogram.LCLEL10008507005003002001001 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, Apalachicola Mun, FL at 00:00Z on 1991-03-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 248 square meters per square second.1939587897Sfc1 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
26 J/kg
Mixed-layer CIN
-4 J/kg
Mixed-layer LCL
601 m above ground
0-6 km bulk shear
61 kt
0-1 km storm-relative helicity
248 m²/s²
0-3 km storm-relative helicity
282 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

Nearby

Flash Flood Warnings in Florida, 1991Every flash flood warning in 1991

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.