Alert archive / Texas / Flash Flood Warnings in 1997

Flash Flood Warning 9, NWS Norman, OK

May 8, 1997Archer County, Clay County, Wichita County, Texas

NWS Norman, OK issued this flash flood warning at May 8, 1997, 11:09 PM CDT for Archer County, Clay County, Wichita County, Texas. 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: May 8, 1997, 11:09 PM CDT (04:09 UTC)
Expired: May 9, 1997, 2:00 AM CDT
In force: 3 hr
Issued by: NWS Norman, OK
Area: Whole counties

Counties Archer County, TX, Clay County, TX, Wichita County, TX

The nearest sounding before it

Fort Worth, TX (KFWD), launched 00:00Z, 4.2 hours before the alert went out and 158 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: 1444 J/kg
Mixed-layer CIN: -31 J/kg
Mixed-layer LCL: 916 m above ground
0-6 km bulk shear: 27 kt
0-1 km storm-relative helicity: 26 m²/s²
0-3 km storm-relative helicity: 10 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 1.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KOKC 090408
FFWOKC
TXC009-077-485-090700-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE NORMAN OK
1109 PM CDT THU MAY 08 1997

THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A FLASH FLOOD
WARNING EFFECTIVE UNTIL 200 AM CDT FOR PEOPLE IN THE FOLLOWING
COUNTIES

IN NORTHERN TEXAS
     ARCHER...CLAY AND WICHITA

INCLUDING THE FOLLOWING LOCATIONS
     ARCHER CITY...BLUEGROVE...HENRIETTA...HOLLIDAY...IOWA PARK
     ...JOY...LAKE ARROWHEAD...LAKE KICKAPOO...LAKE WICHITA...
     SHEPPARD AFB...VASHTI...WICHITA FALLS AND WINDTHORST

AT 1109 PM CDT RADAR CONTINUED TO SHOW MODERATE TO BRIEFLY HEAVY
RAINFALL OCCURING ACROSS PARTS OF WESTERN NORTH TEXAS. RADAR DERIVED
RAINFALL ESTIMATES INDICATE WIDESPEAD TWO TO FOUR INCH TOTALS HAVE
FALLEN THIS EVENING FROM SOUTHWEST PARTS OF WICHITA
FALLS...SOUTHEASTWARD ACROSS MUCH OF NORTHEAST ARCHER AND SOUTHERN CLAY
COUNTIES. THE ADDITIONAL RAINFALL WILL RESULT IN CONTINUING LIKELIHOOD
OF LOCAL FLASH FLOODING.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE
THE DANGERS OF FLASH FLOODS.  DO NOT STAY IN AREAS SUBJECT TO
FLOODING WHEN WATER BEGINS RISING.  IT IS VERY DIFFUCULT AT
NIGHT TO TELL HOW MUCH WATER ISD ON ROADS.  MOTORISTS SHOULD NOT
DRIVE THROUGH WATER OF UNKNOWN DEPTH.


MLB/CB

The office that day

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

Issued	Product	Office	Counties	Lasted
May 8, 7:08 PM CDT	Severe Thunderstorm Warning	OUN	Archer, Clay	52 min
May 8, 7:15 PM CDT	Severe Thunderstorm Warning	OUN	Baylor, Wichita, Wilbarger	45 min
May 8, 7:15 PM CDT	Severe Thunderstorm Warning	OUN	Foard, Knox	45 min
May 8, 7:55 PM CDT	Severe Thunderstorm Warning	OUN	Archer, Clay, Wichita	50 min
May 8, 7:55 PM CDT	Severe Thunderstorm Warning	OUN	Baylor, Knox	50 min
May 8, 8:00 PM CDT	Tornado Warning	OUN	Clay	45 min
May 8, 8:28 PM CDT	Flash Flood Warning	OUN	Wichita	3 hr
May 8, 8:34 PM CDT	Flash Flood Warning	OUN	Archer, Clay	3 hr
May 8, 8:41 PM CDT	Tornado Warning	OUN	Clay	34 min
May 8, 9:24 PM CDT	Flash Flood Warning	OUN	Baylor, Knox	4 hr

Nearby

Flash Flood Warnings in Texas, 1997 Every flash flood warning in 1997

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.