Alert archive / Texas / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 45, NWS Shreveport, LA
NWS Shreveport, LA issued this severe thunderstorm warning at Apr 15, 2001, 1:53 PM CDT for Shelby County, Texas. It was in force for 37 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
- Apr 15, 2001, 1:53 PM CDT (18:53 UTC)
- Expired
- Apr 15, 2001, 2:30 PM CDT
- In force
- 37 min
- Issued by
- NWS Shreveport, LA
- Area
- Whole counties
County Shelby County, TX
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Apr 15, 1:00 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Shreveport, LA (KSHV), launched 12:00Z, 6.9 hours before the alert went out and 85 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
- 651 J/kg
- Mixed-layer CIN
- -316 J/kg
- Mixed-layer LCL
- 1027 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 252 m²/s²
- 0-3 km storm-relative helicity
- 291 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
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 Apr 15, 11:10 AM CDT, 2 hours 43 minutes earlier.
Area forecast discussion, Apr 15, 11:10 AM CDT, 2 hours 43 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE SHREVEPORT LA 1110 AM CDT SUN APR 15 2001 UPDATED TO REMOVE POPS NORTH...INCREASE THEM FOR MONROE. MAX TEMPS WERE ADJUSTED ACCORDING TO CURRENT TEMPS AND CLOUD COVER. RAISED FAR NW...LOWERED SOME OTHERS. ON THE WHOLE...FORECAST SHAPING UP WELL AS BAND OF SHWRS AND TSTMS MOVE SEWD. 17 .SHV...NONE.
In the hours before
Special weather statement, Apr 15, 10:30 AM CDT, 3 hours 23 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>167-151630- THUNDERSTORM OUTLOOK NATIONAL WEATHER SERVICE SHREVEPORT LA 1030 AM CDT SUN APR 15 2001 A SOUTHWARD MOVING FRONTAL BOUNDARY WILL BE ACCOMPANIED BY SHOWERS AND THUNDERSTORMS TODAY AND EARLY THIS EVENING. THE THREAT OF THUNDERSTORMS HAS ALREADY ENDED FOR IDABEL...NEW BOSTON...AND HOPE. MOST OF THE REMAINING ACTIVITY WILL OCCUR OVER LOUISIANA...WITH SCATTERED STORMS ALSO POSSIBLE OVER NORTHEAST TEXAS. ALTHOUGH UPPER LEVEL INSTABILITY IS GREAT...WARM TEMPERATURES IN THE LOWEST TWO MILES OF THE ATMOSPHERE WILL TEND TO INHIBIT THE POSSIBILITY OF A SEVERE WEATHER OUTBREAK. THERE REMAINS...HOWEVER...A SLIGHT CHANCE OF SEVERE THUNDERSTORMS FOR TODAY AND THIS EVENING FOR MUCH OF LOUISIANA...AS WELL AS FOR THOSE PORTIONS OF NORTHEAST TEXAS ALONG AND SOUTH OF THE INTERSTATE 20 CORRIDOR. IF SEVERE THUMNDERSTORMS DO DEVELOP...THE PRIMARY THREAT POSED WILL BE LARGE HAIL AND DAMAGING WIND GUSTS. THE ACTIVATION OF STORM SPOTTERS...EMERGENCY MANAGERS...AND SKYWARN NETWORKS...IS NOT YET ANTICIPATED FOR THIS AFTERNOON AND TONIGHT.
The office that day
Everything else NWS Shreveport, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 15, 12:04 PM CDT | Severe Thunderstorm Warning | SHV | Panola | 26 min |
Nearby
Severe Thunderstorm Warnings in Texas, 2001Every severe thunderstorm warning in 2001
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.