Alert archive / Arkansas / Flash Flood Warnings in 1997
Flash Flood Warning 74, NWS Shreveport, LA
NWS Shreveport, LA issued this flash flood warning at Aug 10, 1997, 11:27 AM CDT for Union County, Arkansas. 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
- Aug 10, 1997, 11:27 AM CDT (16:27 UTC)
- Expired
- Aug 10, 1997, 2:30 PM CDT
- In force
- 3 hr
- Issued by
- NWS Shreveport, LA
- Area
- Whole counties
County Union County, AR
The radar
The Shreveport radar (KSHV), 141 km from the middle of the area, began a volume at 16:31 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Shreveport, LA (KSHV), launched 12:00Z, 4.5 hours before the alert went out and 132 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.
- Mixed-layer CAPE
- 1674 J/kg
- Mixed-layer CIN
- -67 J/kg
- Mixed-layer LCL
- 716 m above ground
- 0-6 km bulk shear
- 14 kt
- 0-1 km storm-relative helicity
- 28 m²/s²
- 0-3 km storm-relative helicity
- 49 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KSHV 101631 COR FFWSHV ARC139-101930- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING...CORRECTED NATIONAL WEATHER SERVICE SHREVEPORT LA 1127 AM CDT SUN AUG 10 1997 THE NATIONAL WEATHER SERVICE IN SHREVEPORT HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 230 PM CDT FOR THE FOLLOWING AREA... IN SOUTH ARKANSAS ...UNION COUNTY AT 1125 AM CDT...DOPPLER RADAR IN SHREVEPORT ESTIMATED OVER 4 INCHES OF RAIN HAD FALLEN ACROSS PARTS OF SOUTHERN UNION COUNTY DURING IN THE LAST THREE HOURS. THE THUNDERSTORMS THAT PRODUCED THIS HEAVY RAINFALL CONTINUE TO REDEVELOP AND MOVE SLOWLY TO THE EAST SOUTHEAST ALONG A WEAK SURFACE TROUGH OF LOW PRESSURE. THIS REDEVELOPMENT SHOULD CONTINUE INTO THE EARLY AFTERNOON HOURS WITH AN ADDITIONAL 2 TO 3 INCHES OF RAIN POSSIBLE ACROSS SOUTHERN UNION COUNTY. WITH THIS ADDITIONAL HEAVY RAINFALL EXPECTED ACROSS THE COUNTY FLOODING OF LOW WATER CROSSINGS ALONG AREA ROADWAYS IS LIKELY. SMALL STREAMS AND BAYOUS WILL LIKELY OVERFLOW THEIR BANKS TODAY AS WELL. THE RUNOFF FROM THESE HEAVY RAINS WILL PROGRESS SLOWLY AFTER THE RAINFALL ENDS BUT SHOULD BE COMPLETED BY 300 PM. MOTORISTS ARE ADVISED TO USE EXTREME CAUTION WHEN TRAVELLING THIS AFTERNOON ACROSS THE COUNTY. DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED IMMEDIATELY. CAMPERS ALONG RIVERS...STREAMS...OR CREEKS SHOULD MOVE TO HIGHER GROUND IMMEDIATELY. FLASH FLOODING IS IMMINENT. 18
What forecasters said that day
The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Shreveport, LA wrote its last area forecast discussion before this flash flood warning went out at Aug 10, 9:30 AM CDT, 1 hour 57 minutes earlier.
Area forecast discussion, Aug 10, 9:30 AM CDT, 1 hour 57 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE SHREVEPORT LA 930 AM CDT SUN AUG 10 1997 SHWRS AND TSTMS CONT ACRS PARTS OF SRN AR AND NRN LA THIS MRNG IN VICINITY OF BEST SFC MSTR CONV AS NOTED IN ADAP GRAPHICS. WUD EXPECT THIS ACTIVITY TO CONT DVLPG AND MOVG SLOWLY TO THE E AS UPR LVL S/WV NOT MOVG MUCH DRNG THE DAY. 09Z RUC CONTD TO INDICATE S/WV AXIS OVR THE AREA THRU LATE AFTN. WITH LESS CLDNS ACRS SRN SECTIONS ATMOSPHERE SHUD BECOME VERY UNSTABLE BY AFTN WITH SHWRS AND TSTMS DVLPG ACRS THE AREA. ONLY SIG CHANGES TO MAKE THIS MRNG WUD BE TO LOWER MAX TEMPS A LITTLE ACRS PARTS OF SRN AR WHERE PCPN AND CLDS WILL LINGER LONGER THAN OTHER SECTIONS. 18
In the hours before
Local storm report, Aug 10, 8:52 AM CDT, 2 hours 35 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
853 AM CDT SUN AUG 10 1997
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....PARISH/COUNTY LOCATION....
0200 PM CENTER TX FLOODING
08/09/97 SHELBY REPORTS OF PEOPLE RESCUED
FROM TREES AND CAR TOPS
THROUGHOUT SHELBY COUNTY
DUE TO THE FLASH FLOODING.
0700 AM CENTER TX FLOODING
08/10/97 SHELBY US 96 REMAINS FLOODED WITH
ONLY ONE LANNE USABLE.
SEVERAL FARM TO MARKET
ROADS THROUGHOUT THE
COUNTY REMAIN FLOODED.
.
VIIILocal storm report, Aug 10, 8:53 AM CDT, 2 hours 34 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
853 AM CDT SUN AUG 10 1997
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....PARISH/COUNTY LOCATION....
0200 PM CENTER TX FLOODING
08/09/97 SHELBY REPORTS OF PEOPLE RESCUED
FROM TREES AND CAR TOPS
THROUGHOUT SHELBY COUNTY
DUE TO THE FLASH FLOODING.
0700 AM CENTER TX FLOODING
08/10/97 SHELBY US 96 REMAINS FLOODED WITH
ONLY ONE LANE USABLE.
SEVERAL FARM TO MARKET
ROADS THROUGHOUT THE
COUNTY REMAIN FLOODED.
.
VIIISpecial weather statement, Aug 10, 9:49 AM CDT, 1 hour 38 minutes before
ARZ050-051-059>061-070>073-LAZ001>006-010>014-017>022-OKZ077-TXZ096- 097-108>112-124>126-136>138-149>153-165>167-101600- THUNDERSTORM OUTLOOK NATIONAL WEATHER SERVICE SHREVEPORT LA 1000 AM CDT SUN AUG 10 1997 A SLOW MOVING UPPER LEVEL DISTURBANCE OVER SOUTHERN ARKANSAS AND NORTHEAST TEXAS WILL COMBINE WITH TROUGH OFLOW PRESSURE AT THE SURFACE AND A VERY MOIST AND UNSTABLE AIRMASS TO CAUSE SCATTERED SHOWERS AND THUNDERSTORMS TO CONTINUE DEVELOPING ACROSS THE FOUR STATE REGION TODAY. WHILE THE AIRMASS IS VERY UNSTABLE...LIGHT WINDS ALOFT WILL LIMIT THE CHANCES FOR THE DEVELOPMENT OF SEVERE WEATHER. HOWEVER... THESE LIGHT WINDS WILL CAUSE THUNDERSTORMS THAT DEVELOP TO MOVE VERY SLOWLY...PRODUCING LOCALLY HEAVY RAINS. THESE LOCALLY HEAVY RAINS COULD LEAD TO FLOODING ACROSS AREAS OF EAST TEXAS AND WESTERN LOUISIANA THAT RECEIVED HEAVY RAINS YESTERDAY. ACTIVATION OF EMERGENCY MANAGEMENT PERSONNEL DUE TO LOCALLIZED FLOODING MAY BE NEEDED ACROSS PARTS OF THE FOUR STATE REGION TODAY. STORM SPOTTERS AND COOPERATIVE OBSERVERS ARE REMINDED TO PASS RAINFALL AND FLOODING REPORTS TO THE NATIONAL WEATHER SERVICE OR LOCAL LAW ENFORCEMENT OFFICIALS. 18
Special weather statement, Aug 10, 10:00 AM CDT, 1 hour 27 minutes before
ARZ050-051-059>061-070>073-LAZ001>006-010>014-017>022-OKZ077-TXZ096- 097-108>112-124>126-136>138-149>153-165>167-101600- THUNDERSTORM OUTLOOK NATIONAL WEATHER SERVICE SHREVEPORT LA 1000 AM CDT SUN AUG 10 1997 A SLOW MOVING UPPER LEVEL DISTURBANCE OVER SOUTHERN ARKANSAS AND NORTHEAST TEXAS WILL COMBINE WITH TROUGH OFLOW PRESSURE AT THE SURFACE AND A VERY MOIST AND UNSTABLE AIRMASS TO CAUSE SCATTERED SHOWERS AND THUNDERSTORMS TO CONTINUE DEVELOPING ACROSS THE FOUR STATE REGION TODAY. WHILE THE AIRMASS IS VERY UNSTABLE...LIGHT WINDS ALOFT WILL LIMIT THE CHANCES FOR THE DEVELOPMENT OF SEVERE WEATHER. HOWEVER... THESE LIGHT WINDS WILL CAUSE THUNDERSTORMS THAT DEVELOP TO MOVE VERY SLOWLY...PRODUCING LOCALLY HEAVY RAINS. THESE LOCALLY HEAVY RAINS COULD LEAD TO FLOODING ACROSS AREAS OF EAST TEXAS AND WESTERN LOUISIANA THAT RECEIVED HEAVY RAINS YESTERDAY. ACTIVATION OF EMERGENCY MANAGEMENT PERSONNEL DUE TO LOCALLIZED FLOODING MAY BE NEEDED ACROSS PARTS OF THE FOUR STATE REGION TODAY. STORM SPOTTERS AND COOPERATIVE OBSERVERS ARE REMINDED TO PASS RAINFALL AND FLOODING REPORTS TO THE NATIONAL WEATHER SERVICE OR LOCAL LAW ENFORCEMENT OFFICIALS. 18
Nearby
Flash Flood Warnings in Arkansas, 1997Every 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; radar from the NEXRAD Level II archive.