Alert archive / Arkansas / Tornado Warnings in 1990

Tornado Warning 7, NWS Shreveport, LA

April 5, 1990Columbia County, Nevada County, Arkansas

NWS Shreveport, LA issued this tornado warning at Apr 5, 1990, 6:50 PM CDT for Columbia County, Nevada County, Arkansas. It was in force for 55 min. 2 reports 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 5, 1990, 6:50 PM CDT (23:50 UTC)
Expired: Apr 5, 1990, 7:45 PM CDT
In force: 55 min
Issued by: NWS Shreveport, LA
Area: Whole counties

Counties Columbia County, AR, Nevada 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 5, 7:20 PM CDT	Hail 1	Columbia, AR
Apr 5, 7:25 PM CDT	Hail 1.75	Nevada, 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

Longview/Gregg, TX (KGGG), launched 12:00Z, 11.8 hours before the alert went out and 174 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: 137 J/kg
Mixed-layer CIN: -202 J/kg
Mixed-layer LCL: 1007 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: 95 m²/s²
0-3 km storm-relative helicity: 105 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.4

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KSHV 052354
TORSHV
ARC099-073-060045-
 
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE SHREVEPORT LA
650 PM CDT THU APR 5 1990
 
THE NATIONAL WEATHER SERVICE IN SHREVEPORT HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL  745 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS..
 
IN SOUTHWEST ARKANSAS
   ...NORTH COLUMBIA
   ...SOUTHWEST NEVADA COUNTY
 
AT 650 PM CDT WEATHER SERVICE RADAR IN SHREVEPORT SHOWED A POSSIBLE
TORNADO ABOUT 10 MILS NORTH NORTHEAST OF STAMPS ARKANSAS OR NEAR
FALCON ARKANSAS IN SOUTH NEVADA COUNTY ARKANSAS. THE SEVERE
THUNDERSTORM THAT THE TORNADO WAS IN WAS MOVING TO THE SOUTHEAST
AT 20 MPH.
 
 
THIS IS A DANGEROUS STORM SITUATION.  ACT QUICKLY.  IF YOU ARE
IN THE PATH OF THIS TORNADO MOVE TO A SHELTER BELOW GROUND IF
AVAILABLE.  OTHERWISE...GO TO A SMALL INTERIOR ROOM ON THE LOWEST
FLOOR POSSIBLE.  AVOID WINDOWS.  ABANDON CARS AND MOBILE HOMES
FOR A REINFORCED BUILDING OR GET INTO A DITCH OR CULVERT.

1 follow-up statement

000 
TTAA00 KSHV 060000 RRA
TORSHV
ARC099-027-060045-

BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING..COR
NATIONAL WEATHER SERVICE SHREVEPORT LA
650 PM CDT THU APR 5 1990

THE NATIONAL WEATHER SERVICE IN SHREVEPORT HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL  745 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS..

IN SOUTHWEST ARKANSAS
   ...NORTH COLUMBIA
   ...SOUTHWEST NEVADA COUNTY

AT 650 PM CDT WEATHER SERVICE RADAR IN SHREVEPORT SHOWED A POSSIBLE
TORNADO ABOUT 10 MILS NORTH NORTHEAST OF STAMPS ARKANSAS OR NEAR
FALCON ARKANSAS IN SOUTH NEVADA COUNTY ARKANSAS. THE SEVERE
THUNDERSTORM THAT THE TORNADO WAS IN WAS MOVING TO THE SOUTHEAST
AT 20 MPH.
...NOTE THE CORRECTION IN HEADING   FOR NEVADA AND COLUMBIA...

THIS IS A DANGEROUS STORM SITUATION.  ACT QUICKLY.  IF YOU ARE
IN THE PATH OF THIS TORNADO MOVE TO A SHELTER BELOW GROUND IF
AVAILABLE.  OTHERWISE...GO TO A SMALL INTERIOR ROOM ON THE LOWEST
FLOOR POSSIBLE.  AVOID WINDOWS.  ABANDON CARS AND MOBILE HOMES
FOR A REINFORCED BUILDING OR GET INTO A DITCH OR CULVERT.

The office that day

Everything else NWS Shreveport, LA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 5, 4:11 PM CDT	Severe Thunderstorm Warning	SHV	Little River	64 min
Apr 5, 5:16 PM CDT	Severe Thunderstorm Warning	SHV	Hempstead, Miller	59 min
Apr 5, 6:02 PM CDT	Severe Thunderstorm Warning	SHV	Columbia, Lafayette, Nevada	88 min

Nearby

Tornado Warnings in Arkansas, 1990 Every tornado warning in 1990 Tornadoes 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.