Alert archive / Arkansas / Flash Flood Warnings in 1998

Flash Flood Warning 20, NWS Little Rock, AR

July 12, 1998Izard County, Arkansas

NWS Little Rock, AR issued this flash flood warning at Jul 12, 1998, 7:13 AM CDT for Izard County, Arkansas. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jul 12, 1998, 7:13 AM CDT (12:13 UTC)
Expired
Jul 12, 1998, 10:15 AM CDT
In force
3 hr
Issued by
NWS Little Rock, AR
Area
Whole counties

County Izard County, AR

The nearest sounding before it

Springfield, MO (KSGF), launched 12:00Z, 0.2 hours before the alert went out and 191 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, Springfield, MO at 12:00Z on 1998-07-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 942 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, Springfield, MO at 12:00Z on 1998-07-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 24 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
942 J/kg
Mixed-layer CIN
-15 J/kg
Mixed-layer LCL
628 m above ground
0-6 km bulk shear
10 kt
0-1 km storm-relative helicity
24 m²/s²
0-3 km storm-relative helicity
61 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 Little Rock, AR issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 11, 7:05 PM CDTSevere Thunderstorm WarningLZKHot Spring50 min
Jul 12, 2:45 AM CDTFlash Flood WarningLZKMarion3 hr
Jul 12, 3:18 AM CDTFlash Flood WarningLZKMarion4 hr
Jul 12, 5:19 AM CDTFlash Flood WarningLZKIndependence3 hr
Jul 12, 5:22 PM CDTSevere Thunderstorm WarningLZKPolk33 min

Nearby

Flash Flood Warnings in Arkansas, 1998Every flash flood warning in 1998

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.