Alert archive / Kentucky / Flash Flood Warnings in 1991

Flash Flood Warning 15, NWS Indianapolis, IN

June 21, 1991Hopkins County, Kentucky

NWS Indianapolis, IN issued this flash flood warning at Jun 21, 1991, 9:44 AM CDT for Hopkins County, Kentucky. It was in force for 4 hr.

The area

The counties it named.

The facts

Issued
Jun 21, 1991, 9:44 AM CDT (14:44 UTC)
Expired
Jun 21, 1991, 1:45 PM CDT
In force
4 hr
Issued by
NWS Indianapolis, IN
Area
Whole counties

County Hopkins County, KY

The nearest sounding before it

Paducah/Barkley, KY (KPAH), launched 12:00Z, 2.7 hours before the alert went out and 106 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, Paducah/Barkley, KY at 12:00Z on 1991-06-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 935 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, Paducah/Barkley, KY at 12:00Z on 1991-06-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -12 square meters per square second.1939Sfc1 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
935 J/kg
Mixed-layer CIN
-67 J/kg
Mixed-layer LCL
966 m above ground
0-6 km bulk shear
11 kt
0-1 km storm-relative helicity
-12 m²/s²
0-3 km storm-relative helicity
2 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, Jun 21, 9:04 AM CDT, 40 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
900 AM EST FRI JUN 21 1991

THUNDERSTORMS WERE DUMPING VERY HEAVY RAIN ON PARTS OF SOUTHWEST
INDIANA JUST BEFORE 9AM EST.

THUNDERSTORMS WITH VERY HEAVY DOWNPOURS WERE OCCURRING FROM SWITZ CITY
AND BLOOMFIELD...DOWN TO NEWBERRY...ELNORA...ODON AND LOOGOOTEE.
THUNDERSTORMS WITH VERY HEAVY RAIN WERE ALSO OVER CRANE NAVAL WEAPONS
SUPPORT CENTER. OTHER STORMS WITH VERY HEAVY DOWNPOURS WERE SCATTERED
FROM AROUND WASHINGTON...DOWN TO JASPER.

THE STORMS WERE DRIFTING VERY SLOWLY NORTHEAST OR EAST...AND ARE
CAPABLE OF DUMPING UP TO AN INCH OF RAIN ON ANY GIVEN SPOT IN A SHORT
PERIOD OF TIME. LOCAL STREET FLOODING CAN OCCUR AND WATxER WILL BE
PONDING ON ROADS.

GRAY

The office that day

Everything else NWS Indianapolis, IN issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 21, 10:34 AM CDTFlash Flood WarningINDUnion, Webster4 hr

Nearby

Flash Flood Warnings in Kentucky, 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.