Alert archive / Arkansas / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 72, NWS Little Rock, AR

May 21, 1990Pulaski County, Arkansas

NWS Little Rock, AR issued this severe thunderstorm warning at May 21, 1990, 5:27 AM CDT for Pulaski County, Arkansas. It was in force for 63 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
May 21, 1990, 5:27 AM CDT (10:27 UTC)
Expired
May 21, 1990, 6:30 AM CDT
In force
63 min
Issued by
NWS Little Rock, AR
Area
Whole counties

County Pulaski County, AR

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

What was reported inside it

TimeReportWhereRemark
May 21, 5:30 AM CDTThunderstorm Wind 0Pulaski, AR

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.

The nearest sounding before it

Little Rock, AR (KLZK), launched 00:00Z, 10.5 hours before the alert went out and 216 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, Little Rock, AR at 00:00Z on 1990-05-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Little Rock, AR at 00:00Z on 1990-05-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 20 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
3596 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
20 m²/s²
0-3 km storm-relative helicity
81 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 severe thunderstorm 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 21, 12:10 AM CDT, 5 hours 17 minutes before
ARZ001>011-015-210700-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LITTLE ROCK AR
1209 AM CDT MON MAY 21 1990

...THUNDERSTORMS CONTINUE TO DEVELOP IN ARKANSAS...

A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 400 AM CDT FOR MOST OF
CENTRAL AND WESTERN ARKANSAS.

AT MIDNIGHT...THUNDERSTORMS WERE OCCURRING OVER SEVERAL PARTS OF THE
STATE. MOST OF THESE STORMS DEVELOPED DURING THE PAST COUPLE OF HOURS.

A LARGE AREA OF THUNDERSTORMS WAS LOCATED ALONG THE ARKANSAS-MISSOURI
BORDER FROM NEAR GRAVETTE EASTWARD TO BULL SHOALS LAKE. THE STRONGEST
STORM IN ARKANSAS WAS NEAR OMAHA...BUT STRONGER STORMS WERE JUST NORTH
OF THE BORDER IN MISSOURI.

IN NORTHEAST ARKANSAS...THUNDERSTORMS HAD DEVELOPED RAPIDLY FROM
MAMMOTH SPRING TO WALNUT RIDGE.

IN THE CENTRAL PART OF THE STATE...THUNDERSTORMS WERE OCCURRING FROM
LITTLE ROCK TO 10 MILES NORTH OF PINE BLUFF...AND FROM BENTON
ACROSS THE LITTLE ROCK AREA TO BEEBE.

SCATTERED THUNDERSTOARMS WERE ALSO OCCURRING FROM TEXARKANA TO
15 MILES SOUTH OF SHERIDAN.

FINALLY...THUNDERSTORMS WERE MOVING FROM EASTERN OKLAHOMA INTO
SCOTT AND POLK COUNTIES IN WESTERN ARKANSAS.

28
Special weather statement, May 21, 5:03 AM CDT, 24 minutes before
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The office that day

Everything else NWS Little Rock, AR issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 21, 12:32 AM CDTSevere Thunderstorm WarningLZKRandolph43 min
May 21, 1:11 AM CDTSevere Thunderstorm WarningLZKMontgomery59 min
May 21, 1:24 AM CDTTornado WarningLZKMontgomery66 min
May 21, 2:22 AM CDTSevere Thunderstorm WarningLZKGarland, Hot Spring38 min
May 21, 2:29 AM CDTSevere Thunderstorm WarningLZKSaline61 min
May 21, 2:44 AM CDTSevere Thunderstorm WarningLZKPulaski61 min
May 21, 2:52 AM CDTSevere Thunderstorm WarningLZKGrant53 min
May 21, 3:52 AM CDTSevere Thunderstorm WarningLZKNewton38 min
May 21, 5:37 AM CDTSevere Thunderstorm WarningLZKLonoke68 min
May 21, 6:18 AM CDTSevere Thunderstorm WarningLZKJefferson42 min
May 21, 6:21 AM CDTSevere Thunderstorm WarningLZKArkansas69 min
May 21, 6:32 AM CDTSevere Thunderstorm WarningLZKCleveland, Lincoln58 min
May 21, 7:03 AM CDTSevere Thunderstorm WarningLZKDesha, Drew42 min
May 21, 8:50 AM CDTSevere Thunderstorm WarningLZKUnion40 min

Nearby

Severe Thunderstorm Warnings in Arkansas, 1990Every severe thunderstorm warning in 1990

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.