Alert archive / Louisiana / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 161, NWS Shreveport, LA
NWS Shreveport, LA issued this severe thunderstorm warning at May 2, 1997, 2:25 PM CDT for Webster Parish, Louisiana. It was in force for 50 min. 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 2, 1997, 2:25 PM CDT (19:25 UTC)
- Expired
- May 2, 1997, 3:15 PM CDT
- In force
- 50 min
- Issued by
- NWS Shreveport, LA
- Area
- Whole counties
County Webster Parish, LA
The radar
The Shreveport radar (KSHV), 56 km from the middle of the area, began a volume at 19:25 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, 7.4 hours before the alert went out and 47 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
- 1449 J/kg
- Mixed-layer CIN
- -140 J/kg
- Mixed-layer LCL
- 561 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 249 m²/s²
- 0-3 km storm-relative helicity
- 371 m²/s²
- Significant tornado parameter
- 0.7
- Supercell composite
- 2.6
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
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.
NWS Shreveport, LA wrote its last area forecast discussion before this severe thunderstorm warning went out at May 2, 9:19 AM CDT, 5 hours 6 minutes earlier.
Area forecast discussion, May 2, 9:19 AM CDT, 5 hours 6 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE SHREVEPORT LA 915 AM CDT FRI MAY 2 1997 ADAP GRAPHICS/RADAR TRENDS ALL POINT TO INCREASED ACTIVITY ACRS NW LA AND NE TX THIS MRNG AS OUTFLOW BOUNDARY FROM LAST NIGHTS ACTIVITY IN OK INTERACTS WITH CONDITIONALLY UNSTABLE AIR OVER THE AREA THIS MRNG. ADAP GRAPHICS INDICATE BEST MSTR CONVERGENCE S OF A LINE FROM MLU TO JUST S OF SHV TO JUST N OF LFK. THIS IS ALSO IN AN AREA OF LITTLE CAP AND LIS IN THE -5 TO -7 RANGE. GOING FCSTS LOK GUD IN WRT POPS...EXCEPT SE OK WHERE POPS MAY NEED TO BE UPPED FOR ACTIVITY WITH FRONT LATER TODAY AND MENTIN OF SEVERE ADDED. TEMPS ACRS NE TX AND NW LA MAY NEED TO ADJUSTED DOWN. IF CLDS DO NOT CLEAR OUT SIGNIF:ICANTLY BEFORE EARLY AFTERNOON DONT THINK LOW TO MID 80S LIKELY. 18
In the hours before
Local storm report, May 2, 12:21 PM CDT, 2 hours 4 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
1219 PM CDT FRI MAY 02 1997
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
1000 AM SHREVEPORT LA FLOODING
05/02/97 CADDO PART OF I-20 WITH 2 FEET
OF WATER OVER AT ONE
POINT. COMMON STREET
UNDERPASS UNDER WATER.
1015 AM BOSSIER CITY LA FLOODING
05/02/97 BOSSIER NUMEROUS STREES IN BOSSIER
CITY WITH WATER OVER THEM.
CARS STALLING OUT AS THEY
RIDE THROUGH THE WATER.
1015 AM 4 S CARTHAGE TX NON QUALIFIED EVENT
05/02/97 PANOLA COOPERATIVE OBSERVER
REPORTS 5 INCHES OF RAIN
SINCE 8 AM.
1050 AM KEITHVILLE LA FLOODING
05/02/97 CADDO WATER OVER SEVERAL ROADS
IN KEITHVILLE.
1100 AM SHREVEPORT LA FLOODING
05/02/97 CADDO FLOODING AT NORTH COMMON
STREET...HEARN
AVENUE...AND THE
INTERSECTION OF LA
538...US 71 AND LA 1.
1100 AM BOSSIER CITY LA FLOODING
05/02/97 BOSSIER AIRLINE DRIVE AND OLD
MINDEN ROAD WITH WATER
OVER THEM.
1100 AM FAIRPLAY TX FLOODING
05/02/97 PANOLA WATER OVER FM 124.
1100 AM GARY TX FLOODING
05/02/97 PANOLA WATER OVER FM 10.
1100 AM TX FLOODING
05/02/97 PANOLA `FLOODING OF SEVERAL COUNTY
ROADS.
10Local storm report, May 2, 12:57 PM CDT, 1 hour 28 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
1257 PM CDT FRI MAY 02 1997
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
1230 PM GRAND CANE LA FLOODING
05/02/97 DE SOTO HIGH WATER OVER BOTH LANES
OF US 171. CARS STALLING
IN WATER.
10Local storm report, May 2, 1:10 PM CDT, 1 hour 15 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
110 PM CDT THU MAY 02 1997
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0105 PM 10 S MANSFIELD LA TORNADO
05/02/97 DE SOTO REPORTED BY DE SOTO PARISH
SHERIFF OFFICE.
10Local storm report, May 2, 1:13 PM CDT, 1 hour 12 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
110 PM CDT THU MAY 02 1997
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0105 P`M 10 S MANSFIELD LA TORNADO
05/02/97 DE SOTO REPORTED BY DE SOTO PARISH
SHERIFF OFFICE.
10Special weather statement, May 2, 1:45 PM CDT, 40 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>167-022030- THUNDERSTORM OUTLOOK NATIONAL WEATHER SERVICE SHREVEPORT LA 145 PM CDT FRI MAY 2 1997 THERE IS A MODERATE RISK OF SEVERE THUNDERSTORMS OVER NORTHEAST TEXAS... SOUTHEAST OKLAHOMA... SOUTHWEST ARKANSAS... AND NORTHERN LOUISIANA FOR THE REMAINDER OF THIS AFTERNOON AND THIS EVENING. A VERY UNSTABLE AIR MASS IS IN PLACE OVER THE FOUR STATE AREA THIS AFTERNOON. THUNDERSTORMS HAVE ALREADY MOVED THROUGH NORTHERN LOUISIANA AND EXTREME SOUTHERN ARKANSAS DURING THE EARLY AFTERNOON HOURS. STRONG TO SEVERE THUNDERSTORMS ARE EXPECTED TO REFORM OVER NORTHEAST TEXAS AND SOUTHWEST ARKANSAS DURING THE MID TO LATE AFTERNOON HOURS. THESE THUNDERSTORMS WILL MOVE EAST AND NORTHEAST INTO NORTHERN LOUISIANA AND ACROSS SOUTHERN ARKANSAS DURING THE LATE AFTERNOON AND EVENING. SOME OF THESE THUNDERSTORMS WILL LIKELY BE SEVERE WITH LARGE HAIL AND DAMAGING WINDS. TORNADOES ARE ALSO POSSIBLE DURING THE MID AFTERNOON THROUGH EVENING HOURS. STORM SPOTTERS MAY BE ACTIVATED LATE THIS AFTERNOON AND EVENING IN NORTHEAST TEXAS... SOUTHWEST ARKANSAS... AND NORTHERN LOUISIANA. 3
Special weather statement, May 2, 1:49 PM CDT, 36 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>167-022030- THUNDERSTORM OUTLOOK NATIONAL WEATHER SERVICE SHREVEPORT LA 145 PM CDT FRI MAY 2 1997 THERE IS A MODERATE RISK OF SEVERE THUNDERSTORMS OVER NORTHEAST TEXAS... SOUTHEAST OKLAHOMA... SOUTHWEST ARKANSAS... AND NORTHERN LOUISIANA FOR THE REMAINDER OF THIS AFTERNOON AND THIS EVENING. A VERY UNSTABLE AIR MASS IS IN PLACE OVER THE FOUR STATE AREA THIS AFTERNOON. THUNDERSTORMS HAVE ALREADY MOVED THROUGH NORTHERN LOUISIANA AND EXTREME SOUTHERN ARKANSAS DURING THE EARLY AFTERNOON HOURS. STRONG TO SEVERE THUNDERSTORMS ARE EXPECTED TO REFORM OVER NORTHEAST TEXAS AND SOUTHWEST ARKANSAS DURING THE MID TO LATE AFTERNOON HOURS. THESE THUNDERSTORMS WILL MOVE EAST AND NORTHEAST INTO NORTHERN LOUISIANA AND ACROSS SOUTHERN ARKANSAS DURING THE LATE AFTERNOON AND EVENING. SOME OF THESE THUNDERSTORMS WILL LIKELY BE SEVERE WITH LARGE* HAIL AND DAMAGING WINDS. TORNADOES ARE ALSO POSSIBLE DURING THE MID AFTERNOON THROUGH EVENING HOURS. STORM SPOTTERS MAY BE ACTIVATED LATE THIS AFTERNOON AND EVENING IN NORTHEAST TEXAS... SOUTHWEST ARKANSAS... AND NORTHERN LOUISIANA. 3
The office that day
Everything else NWS Shreveport, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 2, 9:52 AM CDT | Flash Flood Warning | SHV | Panola | 4 hr |
| May 2, 4:49 PM CDT | Severe Thunderstorm Warning | SHV | Shelby | 26 min |
| May 2, 5:16 PM CDT | Severe Thunderstorm Warning | SHV | Angelina | 44 min |
| May 2, 5:51 PM CDT | Severe Thunderstorm Warning | SHV | Nacogdoches, San Augustine | 54 min |
| May 2, 11:18 AM CDT | Flash Flood Warning | SHV | Bienville, Red River | 4 hr |
| May 2, 11:18 AM CDT | Flash Flood Warning | SHV | De Soto | 4 hr |
| May 2, 12:36 PM CDT | Severe Thunderstorm Warning | SHV | De Soto | 54 min |
| May 2, 12:53 PM CDT | Flash Flood Warning | SHV | Ouachita | 4 hr |
| May 2, 1:00 PM CDT | Tornado Warning | SHV | De Soto | 45 min |
| May 2, 3:18 PM CDT | Flash Flood Warning | SHV | Webster | 117 min |
| May 2, 3:33 PM CDT | Severe Thunderstorm Warning | SHV | Claiborne | 57 min |
| May 2, 3:57 PM CDT | Tornado Warning | SHV | Union | 33 min |
| May 2, 4:03 PM CDT | Tornado Warning | SHV | Ouachita | 42 min |
| May 2, 5:01 PM CDT | Severe Thunderstorm Warning | SHV | Union | 44 min |
| May 2, 5:10 PM CDT | Severe Thunderstorm Warning | SHV | Sabine | 50 min |
| May 2, 5:46 PM CDT | Tornado Warning | SHV | Sabine | 29 min |
| May 2, 5:59 PM CDT | Tornado Warning | SHV | Natchitoches | 31 min |
| May 2, 6:31 PM CDT | Severe Thunderstorm Warning | SHV | Natchitoches, Winn | 29 min |
| May 2, 5:44 PM CDT | Severe Thunderstorm Warning | SHV | Union | 46 min |
| May 2, 6:29 PM CDT | Severe Thunderstorm Warning | SHV | Union | 46 min |
Nearby
Severe Thunderstorm Warnings in Louisiana, 1997Every severe thunderstorm 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.