Alert archive / Arkansas / Flash Flood Warnings in 1991

Flash Flood Warning 18, NWS Tulsa, OK

November 19, 1991Polk County, Arkansas

NWS Tulsa, OK issued this flash flood warning at Nov 19, 1991, 2:41 PM CST for Polk County, Arkansas. It was in force for 2 hr.

The area

The counties it named.

The facts

Issued
Nov 19, 1991, 2:41 PM CST (20:41 UTC)
Expired
Nov 19, 1991, 4:41 PM CST
In force
2 hr
Issued by
NWS Tulsa, OK
Area
Whole counties

County Polk County, AR

The nearest sounding before it

Longview/Gregg, TX (KGGG), launched 12:00Z, 8.7 hours before the alert went out and 240 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, Longview/Gregg, TX at 12:00Z on 1991-11-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1241 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, Longview/Gregg, TX at 12:00Z on 1991-11-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 169 square meters per square second.1939587897Sfc1 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
1241 J/kg
Mixed-layer CIN
-3 J/kg
Mixed-layer LCL
556 m above ground
0-6 km bulk shear
46 kt
0-1 km storm-relative helicity
169 m²/s²
0-3 km storm-relative helicity
171 m²/s²
Significant tornado parameter
1.1
Supercell composite
5.9

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The text

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

Nearby

Flash Flood Warnings in Arkansas, 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.