Alert archive / Arkansas / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 47, NWS Tulsa, OK

April 16, 1990Crawford County, Washington County, Arkansas

NWS Tulsa, OK issued this severe thunderstorm warning at Apr 16, 1990, 10:00 PM CDT for Crawford County, Washington County, Arkansas. It was in force for 60 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: Apr 16, 1990, 10:00 PM CDT (03:00 UTC)
Expired: Apr 16, 1990, 11:00 PM CDT
In force: 60 min
Issued by: NWS Tulsa, OK
Area: Whole counties

Counties Crawford County, AR, Washington 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

Time	Report	Where	Remark
Apr 16, 10:05 PM CDT	Hail 0.75	Washington, 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

Springfield, MO (KUMN), launched 00:00Z, 3.0 hours before the alert went out and 130 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 993 J/kg
Mixed-layer CIN: -14 J/kg
Mixed-layer LCL: 1295 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: 29 m²/s²
0-3 km storm-relative helicity: 94 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 1.7

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KFSM 170301
SVRFSM
ARC143-033-170400-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE FORT SMITH AR
1000 PM CDT MON APR 16 1990
 
THE NATIONAL WEATHER SERVICE IN FORT SMITH HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1100 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN NORTHWEST ARKANSAS
 
   ...SOUTHERN WASHINGTON COUNTY
 
IN WEST ARKANSAS
 
   ...NORTHERN CRAWFORD COUNTY
 
AT 955 PM WEATHER SERVICE RADAR INDICATES A LINE OF SEVERE
THUNDERSTORMS ALONG THE CRAWFORD - WASHINGTON COUNTY LINE IN ARKANSAS.
THE STORMS HAVE SHOWN LITTLE MOVEMENT IN THE PAST HALF HOUR.
 
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55
MPH...DESTRUCThIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR
OF YOUR HOME OR BUSINESS.  HEAVY RAINS FLOOD ROADS QUICKLY SO
DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.

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

Local storm report, Apr 16, 4:58 PM CDT, 5 hours 2 minutes before

STORM REPORT DELAYED
NATIONAL WEATHER SERVICE TULSA, OK
457 PM CDT MON APR 16 1990

DELAYED STORM REPORT FROM APRIL 15...

 TIME/CDT COUNTY      EVENT
 725 PM   LATIMER     DIME SIZE HAIL FELL 7 MILES NORTH OF WILBURTON
                      ON HIGHWAY 2.

The office that day

Everything else NWS Tulsa, OK issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 16, 7:07 PM CDT	Severe Thunderstorm Warning	TSA	Benton	68 min
Apr 16, 7:31 PM CDT	Severe Thunderstorm Warning	TSA	Washington	59 min
Apr 16, 7:54 PM CDT	Tornado Warning	TSA	Benton	24 min
Apr 16, 7:58 PM CDT	Severe Thunderstorm Warning	TSA	Scott	62 min
Apr 16, 8:04 PM CDT	Severe Thunderstorm Warning	TSA	Madison	56 min
Apr 16, 8:30 PM CDT	Severe Thunderstorm Warning	TSA	Washington	30 min
Apr 16, 8:47 PM CDT	Tornado Warning	TSA	Benton, Washington	28 min
Apr 16, 9:00 PM CDT	Severe Thunderstorm Warning	TSA	Crawford, Madison, Washington	60 min
Apr 16, 9:25 PM CDT	Severe Thunderstorm Warning	TSA	Benton	35 min
Apr 16, 11:41 PM CDT	Severe Thunderstorm Warning	TSA	Johnson	64 min

Nearby

Severe Thunderstorm Warnings in Arkansas, 1990 Every 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.