Alert archive / Texas / Flash Flood Warnings in 1990

Flash Flood Warning 41, NWS Shreveport, LA

May 16, 1990Bowie County, Cass County, Texas; Miller County, Arkansas

NWS Shreveport, LA issued this flash flood warning at May 16, 1990, 10:03 PM CDT for Bowie County, Cass County, Texas; Miller County, Arkansas. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued: May 16, 1990, 10:03 PM CDT (03:03 UTC)
Expired: May 17, 1990, 1:00 AM CDT
In force: 3 hr
Issued by: NWS Shreveport, LA
Area: Whole counties

Counties Miller County, AR, Bowie County, TX, Cass County, TX

The radar

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

The nearest sounding before it

Longview/Gregg, TX (KGGG), launched 00:00Z, 3.1 hours before the alert went out and 109 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: 2570 J/kg
Mixed-layer CIN: -8 J/kg
Mixed-layer LCL: 1057 m above ground
0-6 km bulk shear: 48 kt
0-1 km storm-relative helicity: 169 m²/s²
0-3 km storm-relative helicity: 303 m²/s²
Significant tornado parameter: 4.1
Supercell composite: 18.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KSHV 170305
FFWSHV
ARC027-073-091-TXC037-067-170600-
 
BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SHREVEPORT LA
1003 PM CDT WED MAY 16 1990
 
THE NATIONAL WEATHER SERVICE IN SHREVEPORT HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL  100 AM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS..
 
IN SOUTHWEST ARKANSAS
 
   ...COLUMBIA COUNTY...LAFAYETTE COUNTY...MILLER COUNTY
 
 
IN NORTHEAST TEXAS
 
   ...BOWIE COUNTY...CASS COUNTY
 
AT 1000 PM CDT THE NATIONAL WEATHER SERVICE RADAR IN SHREVEPORT
SHOWED A 40 MILE WIDE BAND OF SHOWERS AND THUNDERSTORMS THAT EXTENDED
FROM NEAR PINE BLUFF ARKANSAS ACROSS TEXARKANA TO NEAR ATHENS TEXAS.
WITHIN THE BAND THUNDERSTORMS THAT WERE PRODUCING HAIL...HIGH WINDS
NEAR 50 MPH AND HEAVY RAINFALL NEAR TWO INCHES WERE LOCATED NORTH
OF STAMPS ARKANSAS AND 15 MILES SOUTHWEST OF TEXARKANA.
 
THESE STORMS WERE MOVING OVER AN AREA THAT EARLIER RECEIVED TWO
TO FOUR INCHES OF RAIN. THE STREAMS WERE RUNNING HIGH AND FLOODING
WILL DEVELOP.
 
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE
THE DANGERS OF FLOODS AND FLASH FLOODS.  IF FLASH FLOODING IS
OBSERVED...ACT QUICKLY.  MOVE UP TO ESCAPE FLOOD WATERS.  DO
NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

The office that day

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

Issued	Product	Office	Counties	Lasted
May 16, 8:45 PM CDT	Severe Thunderstorm Warning	SHV	Bowie, Cass	90 min
May 16, 10:11 PM CDT	Severe Thunderstorm Warning	SHV	Gregg, Harrison, Rusk	94 min
May 16, 10:11 PM CDT	Severe Thunderstorm Warning	SHV	Cass, Marion	94 min
May 16, 8:06 PM CDT	Severe Thunderstorm Warning	SHV	Howard, Little River, Sevier	99 min
May 16, 8:06 PM CDT	Severe Thunderstorm Warning	SHV	Pike	99 min
May 16, 8:45 PM CDT	Severe Thunderstorm Warning	SHV	Hempstead, Nevada	90 min
May 16, 10:03 PM CDT	Flash Flood Warning	SHV	Columbia, Lafayette	3 hr
May 16, 10:11 PM CDT	Severe Thunderstorm Warning	SHV	Lafayette	94 min
May 16, 10:11 PM CDT	Severe Thunderstorm Warning	SHV	Columbia	94 min

Nearby

Flash Flood Warnings in Texas, 1990 Flash Flood Warnings in Arkansas, 1990 Every flash flood 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; the sounding from the Mesonet's radiosonde archive.