Alert archive / Kentucky / Flash Flood Warnings in 1991

Flash Flood Warning 12, NWS Wilmington, OH

July 8, 1991Gallatin County, Kentucky; Switzerland County, Indiana

NWS Wilmington, OH issued this flash flood warning at Jul 8, 1991, 4:17 PM EDT for Gallatin County, Kentucky; Switzerland County, Indiana. It was in force for 118 min.

The area

The counties it named.

The facts

Issued
Jul 8, 1991, 4:17 PM EDT (20:17 UTC)
Expired
Jul 8, 1991, 6:15 PM EDT
In force
118 min
Issued by
NWS Wilmington, OH
Area
Whole counties

Counties Switzerland County, IN, Gallatin County, KY

The nearest sounding before it

Huntington/Tri S, WV (KHTS), launched 12:00Z, 8.3 hours before the alert went out and 218 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, Huntington/Tri S, WV at 12:00Z on 1991-07-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1405 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Huntington/Tri S, WV at 12:00Z on 1991-07-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 69 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
1405 J/kg
Mixed-layer CIN
-30 J/kg
Mixed-layer LCL
769 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
69 m²/s²
0-3 km storm-relative helicity
92 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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, Jul 8, 12:25 PM EDT, 3 hours 52 minutes before
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Special weather statement, Jul 8, 1:00 PM EDT, 3 hours 17 minutes before
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Special weather statement, Jul 8, 1:49 PM EDT, 2 hours 28 minutes before
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Special weather statement, Jul 8, 2:47 PM EDT, 1 hour 30 minutes before
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Special weather statement, Jul 8, 3:32 PM EDT, 45 minutes before
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Special weather statement, Jul 8, 3:55 PM EDT, 22 minutes before
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The office that day

Everything else NWS Wilmington, OH issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 7, 10:50 PM EDTSevere Thunderstorm WarningILNKnox40 min
Jul 8, 2:06 AM EDTSevere Thunderstorm WarningILNMercer, Van Wert54 min
Jul 8, 2:41 AM EDTSevere Thunderstorm WarningILNAllen64 min
Jul 8, 3:04 AM EDTSevere Thunderstorm WarningILNAuglaize56 min
Jul 8, 3:12 AM EDTSevere Thunderstorm WarningILNMercer63 min
Jul 8, 3:58 AM EDTSevere Thunderstorm WarningILNMiami62 min
Jul 8, 4:16 AM EDTTornado WarningILNGreene29 min
Jul 8, 4:19 AM EDTTornado WarningILNMiami26 min
Jul 8, 5:54 AM EDTSevere Thunderstorm WarningILNButler66 min
Jul 8, 9:31 AM EDTSevere Thunderstorm WarningILNButler, Hamilton59 min
Jul 8, 9:31 AM EDTSevere Thunderstorm WarningILNClermont59 min
Jul 8, 4:17 PM EDTFlash Flood WarningILNBoone53 min

Nearby

Flash Flood Warnings in Kentucky, 1991Flash Flood Warnings in Indiana, 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.