Alert archive / Florida / Flash Flood Warnings in 1991

Flash Flood Warning 5, NWS Tallahassee, FL

March 3, 1991Calhoun County, Florida

NWS Tallahassee, FL issued this flash flood warning at Mar 3, 1991, 12:00 AM CST for Calhoun County, Florida. It was in force for 4 hr.

The area

The counties it named.

The facts

Issued: Mar 3, 1991, 12:00 AM CST (06:00 UTC)
Expired: Mar 3, 1991, 4:00 AM CST
In force: 4 hr
Issued by: NWS Tallahassee, FL
Area: Whole counties

County Calhoun County, FL

The nearest sounding before it

Apalachicola Mun, FL (KAQQ), launched 00:00Z, 6.0 hours before the alert went out and 78 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1156 J/kg
Mixed-layer CIN: -38 J/kg
Mixed-layer LCL: 536 m above ground
0-6 km bulk shear: 66 kt
0-1 km storm-relative helicity: 52 m²/s²
0-3 km storm-relative helicity: 159 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 4.2

Open this sounding in Storm Lab

The text

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

What forecasters said that day

The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Special weather statement, Mar 2, 8:19 PM CST, 3 hours 41 minutes before

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Special weather statement, Mar 2, 8:24 PM CST, 3 hours 36 minutes before

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Special weather statement, Mar 2, 8:49 PM CST, 3 hours 11 minutes before

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Special weather statement, Mar 2, 10:49 PM CST, 1 hour 11 minutes before

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Special weather statement, Mar 2, 11:48 PM CST, 12 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 3, 10:44 AM CST	Tornado Warning	TAE	Sumter	46 min
Mar 2, 7:21 PM CST	Flash Flood Warning	TAE	Calhoun	4 hr
Mar 3, 12:54 AM CST	Severe Thunderstorm Warning	TAE	Franklin	51 min
Mar 3, 3:46 AM CST	Severe Thunderstorm Warning	TAE	Taylor	59 min
Mar 3, 5:16 AM CST	Flash Flood Warning	TAE	Calhoun, Jackson	4 hr

Nearby

Flash Flood Warnings in Florida, 1991 Every 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.