Alert archive / Illinois / Flash Flood Warnings in 1993

Flash Flood Warning 21, NWS Lincoln, IL

July 11, 1993Hancock County, Illinois

NWS Lincoln, IL issued this flash flood warning at Jul 11, 1993, 6:47 PM CDT for Hancock County, Illinois. It was in force for 58 min.

The area

The counties it named.

The facts

Issued
Jul 11, 1993, 6:47 PM CDT (23:47 UTC)
Expired
Jul 11, 1993, 7:45 PM CDT
In force
58 min
Issued by
NWS Lincoln, IL
Area
Whole counties

County Hancock County, IL

The nearest sounding before it

Paducah/Barkley, KY (KPAH), launched 12:00Z, 11.8 hours before the alert went out and 428 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 1993-07-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1481 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 1993-07-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 10 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
1481 J/kg
Mixed-layer CIN
-28 J/kg
Mixed-layer LCL
811 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
10 m²/s²
0-3 km storm-relative helicity
38 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.

The office that day

Everything else NWS Lincoln, IL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 10, 7:25 PM CDTSevere Thunderstorm WarningILXTazewell25 min
Jul 10, 7:40 PM CDTSevere Thunderstorm WarningILXBureau35 min
Jul 10, 8:07 PM CDTFlash Flood WarningILXFulton, Hancock, McDonough4 hr
Jul 10, 8:39 PM CDTTornado WarningILXTazewell36 min
Jul 11, 2:48 PM CDTSevere Thunderstorm WarningILXMorgan42 min
Jul 11, 3:45 PM CDTSevere Thunderstorm WarningILXSangamon45 min
Jul 11, 4:08 PM CDTSevere Thunderstorm WarningILXColes, Cumberland52 min
Jul 11, 4:42 PM CDTSevere Thunderstorm WarningILXMacon37 min
Jul 11, 6:47 PM CDTTornado WarningILXHancock58 min

Nearby

Flash Flood Warnings in Illinois, 1993Every flash flood warning in 1993

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.