Alert archive / Ohio / Flash Flood Warnings in 1991

Flash Flood Warning 7, NWS Wilmington, OH

May 31, 1991Van Wert County, Ohio

NWS Wilmington, OH issued this flash flood warning at May 31, 1991, 6:25 AM EDT for Van Wert County, Ohio. It was in force for 2 hr.

The area

The counties it named.

The facts

Issued
May 31, 1991, 6:25 AM EDT (10:25 UTC)
Expired
May 31, 1991, 8:30 AM EDT
In force
2 hr
Issued by
NWS Wilmington, OH
Area
Whole counties

County Van Wert County, OH

The nearest sounding before it

Dayton/James M C, OH (KDAY), launched 00:00Z, 10.4 hours before the alert went out and 111 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, Dayton/James M C, OH at 00:00Z on 1991-05-31Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2324 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, Dayton/James M C, OH at 00:00Z on 1991-05-31The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 72 square meters per square second.19395878Sfc1 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
2324 J/kg
Mixed-layer CIN
-1 J/kg
Mixed-layer LCL
1089 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
72 m²/s²
0-3 km storm-relative helicity
85 m²/s²
Significant tornado parameter
0.6
Supercell composite
3.5

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, May 31, 12:29 AM EDT, 5 hours 56 minutes before
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Special weather statement, May 31, 12:29 AM EDT, 5 hours 56 minutes before
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Local storm report, May 31, 12:33 AM EDT, 5 hours 52 minutes before
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Special weather statement, May 31, 1:10 AM EDT, 5 hours 15 minutes before
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Special weather statement, May 31, 3:29 AM EDT, 2 hours 56 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
May 30, 10:10 PM EDTSevere Thunderstorm WarningILNRichland65 min
May 30, 10:27 PM EDTSevere Thunderstorm WarningILNAshland48 min
May 30, 10:30 PM EDTTornado WarningILNAshland, Richland60 min
May 30, 11:10 PM EDTFlash Flood WarningILNVan Wert3 hr
May 31, 1:24 AM EDTFlash Flood WarningILNAuglaize, Mercer4 hr
May 31, 1:24 AM EDTFlash Flood WarningILNAllen4 hr
May 31, 2:10 AM EDTFlash Flood WarningILNVan Wert4 hr

Nearby

Flash Flood Warnings in Ohio, 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.