Alert archive / Texas / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 230, NWS Shreveport, LA
NWS Shreveport, LA issued this severe thunderstorm warning at Jun 12, 1997, 4:04 PM CDT for Franklin County, Texas. It was in force for 56 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
- Jun 12, 1997, 4:04 PM CDT (21:04 UTC)
- Expired
- Jun 12, 1997, 5:00 PM CDT
- In force
- 56 min
- Issued by
- NWS Shreveport, LA
- Area
- Whole counties
County Franklin County, TX
The radar
The Shreveport radar (KSHV), 152 km from the middle of the area, began a volume at 21:05 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, 9.1 hours before the alert went out and 157 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
- 833 J/kg
- Mixed-layer CIN
- -44 J/kg
- Mixed-layer LCL
- 902 m above ground
- 0-6 km bulk shear
- 12 kt
- 0-1 km storm-relative helicity
- 77 m²/s²
- 0-3 km storm-relative helicity
- 118 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 Jun 12, 3:15 PM CDT, 49 minutes earlier.
Area forecast discussion, Jun 12, 3:15 PM CDT, 49 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE SHREVEPORT LA 315 PM CDT THU JUN 12 1997 BAND OF STG TSTMS SLIDING SOUTH THRU NORTH LA BEHIND OUTFLOW BNDRY. WITH SPEED OF MVMNT AND AMOUNT OF STABILITY IN WAKE...WILL NOT EXPECT REDEVELOPMENT THRU EVE. MODELS DIFFER ON TIMING OF LARGE SHORT WAVE PASSING JUST NORTH OF AREA...WITH NGM THE FASTEST AND AVN THE SLOWEST. GENERAL SOLN IS FOR MAIN ENERGY IN NORTH CWA WITH HIGHEST INSTABILITY EAST TX. MEDIATING ETA CENTERS ACTIVITY AROUND MIDDAY FRI WITH CLRG FRI EVE AS LOW MOVES INTO WEST TN. ACTIVITY FORMING TO NORTH ON FRI IN NW FLOW WILL ALSO LIKELY TO CLIP AT LEAST NE CWA. FWC AND FAN AGREE ON LOW TEMPS WHICH LOOK GOOD WITH CURRENT DEWPOINT FIELDS. HOWEVER... WILL GO WITH COOLER FAN HIGHS DUE TO CLD CVR ON FRI AND RENEWED NW FLOW ON SAT. SHV 70/86/70/87 2522 MLU 70/88/71/87 1341 VII
In the hours before
Special weather statement, Jun 12, 10:04 AM CDT, 6 hours before
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</html>Special weather statement, Jun 12, 10:06 AM CDT, 5 hours 58 minutes before
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</html>Special weather statement, Jun 12, 1:10 PM CDT, 2 hours 54 minutes before
ARZ070>073-LAZ001>006-010>014-017>022-TXZ096-097-108>112-124>126-136> 138-149>153-165>167-121915- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SHREVEPORT LA 110 PM CDT THU JUN 12 1997 STRONG THUNDERSTORMS CONTINUED TO INCREASE IN INTENSITY THIS AFTERNOON ALONG A GUST FRONT LOCATED FROM NEAR FARMERVILLE LOUISIANA WEST TO 15 MILES NORTH OF SHREVEPORT TO NEAR GILMER TEXAS. THIS GUST FRONT WAS MOVING SOUTH AT 30 MPH. THE STRONGEST THUNDERSTORMS AT 110 PM WERE OVER NORTHWEST CADDO AND NORTH BOSSIER PARISHES IN LOUISIANA. THESE THUNDERSTORMS WERE CAPABLE OF PRODUCING HAIL AND GUSTY WINDS. OTHER THUNDERSTORMS WERE SCATTERED OVER MUCH OF EXTREME NORTHERN LOUISIANA...EXTREME NORTHEAST TEXAS... AND OVER SOUTHWEST ARKANSAS BETWEEN TEXARKANA AND MAGNOLIA. THE THUNDERSTORMS WERE BUILDING SOUTH AS THE GUST FRONT MOVED SOUTH. THE THUNDERSTORMS WERE MOVING INTO MOIST AND UNSTABLE AIR SO A FEW OF THEM COULD BECOME SEVERE WITH LARGE HAIL OR DAMAGING WINDS. 3
Special weather statement, Jun 12, 1:16 PM CDT, 2 hours 48 minutes before
ARZ070>073-LAZ001>006-010>014-017>022-TXZ096-097-108>112-124>126-136> 138-149>153-165>167-121915- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SHREVEPORT LA 110 PM CDT THU JUN 12 1997 STRONG THUNDERSTORMS CONTINUED TO INCREASE IN INTENSITY THIS AFTERNOON ALONG A GUST FRONT LOCATED FROM NEAR FARMERVILLE LOUISIANA WEST TO 15 MILES NORTH OF SHREVEPORT TO NEAR GILMER TEXAS. THIS GUST FRONT WAS MOVING SOUTH AT 30 MPH. THE STRONGEST THUNDERSTORMS AT 110 PM WERE OVER NORTHWEST CADDO AND NORTH BOSSIER PARISHES IN LOUISIANA. THESE THUNDERSTORMS WERE CAPABLE OF PRODUCING HAIL AND GUSTY WINDS. OTHER THUNDERSTORMS WERE SCATTERED OVER MUCH OF EXTREME NORTHERN LOUISIANA...EXTREME NORTHEAST TEXAS... AND OVER SOUTHWEST ARKANSAS BETWEEN TEXARKANA AND MAGNOLIA. THE THUNDERSTORMS WERE BUILDING SOUTH AS THE GUST FRONT MOVED SOUTH. THE THUNDERSTORMS WERE MOVING INTO MOIST AND UNSTABLE AIR SO A FEW OF THEM COULD BECOME SEVERE WITH LARGE HAIL OR *DAMAGING WINDS. 3
The office that day
Everything else NWS Shreveport, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 12, 5:43 PM CDT | Severe Thunderstorm Warning | SHV | LaSalle | 32 min |
Nearby
Severe Thunderstorm Warnings in Texas, 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.