Alert archive / Texas / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 175, NWS Lubbock, TX
NWS Lubbock, TX issued this severe thunderstorm warning at Sep 18, 2001, 7:06 PM CDT for Lamb County, Texas. It was in force for 24 min. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Sep 18, 2001, 7:06 PM CDT (00:06 UTC)
- Expired
- Sep 18, 2001, 7:30 PM CDT
- In force
- 24 min
- Issued by
- NWS Lubbock, TX
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Lamb County, TX
The radar
The Lubbock radar (KLBB), 68 km from the middle of the area, began a volume at 00:07 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Sep 18, 7:15 PM CDT | Hail 1.5 | Hart Camp, TX |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.
The nearest sounding before it
Midland Regional, TX (KMAF), launched 00:00Z, 0.1 hours before the alert went out and 236 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
- 538 J/kg
- Mixed-layer CIN
- -2 J/kg
- Mixed-layer LCL
- 2646 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- -10 m²/s²
- 0-3 km storm-relative helicity
- 52 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 Lubbock, TX wrote its last area forecast discussion before this severe thunderstorm warning went out at Sep 18, 2:45 PM CDT, 4 hours 21 minutes earlier.
Area forecast discussion, Sep 18, 2:45 PM CDT, 4 hours 21 minutes before
SOUTH PLAINS AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE LUBBOCK TX 245 PM CDT TUE SEP 18 2001 THE 12Z UA ANALYSIS REVEALS AN UPPER LEVEL TROUGH OVER THE CENTRAL PLAINS...EAST OF CWFA...AND A LOW AMPLITUDE UPPER RIDGE OVER THE WESTERN CONUS. UPPER FLOW ACROSS WEST TEXAS WAS ZONAL. AT 18Z A SURFACE COLD FRONT HAS PUSHED SOUTH OF THE ENTIRE CWFA. NORTH OF THE FRONT LOW CLOUDS AND A FEW ISOLATED SHOWERS AND THUNDERSTORMS WERE LOCATED ACROSS THE EASTERN 1/2 OF THE CWFA. SKIES SHOULD CLEAR ACROSS THE NORTHERN AND WESTERN SECTION OF THE CWFA LATER THIS AFTERNOON AND EVENING. THUNDERSTORMS THAT DEVELOP OVER THE MOUNTAINS OF NM LATER THIS AFTERNOON SHOULD DISSIPATE ONCE THEY MOVE EAST ONTO THE LOWER TERRAIN. I WILL GO WITH MOSTLY CLOUDY SKIES AND ISOLATED SHOWERS AND THUNDERSTORMS OVER THE SOUTHEAST COUNTIES DUE TO WEAK ISENTROPIC LIFT NORTH OF THE THE SFC BNDRY. THE SURFACE FRONT WILL WASH OUT TOMORROW AFTERNOON AS A LEE SFC TROUGH FORMS OVER EASTER NM. WITH DEEPER MOISTURE ADVERTING WESTWARD ONTO THE HIGHER TERRAIN OF EASTERN NM TOMORROW AFTERNOON...A FEW THUNDERSTORMS WILL PROBABLY FORM ONCE CONVECTIVE TEMPERATURES ARE REACHED. SOME OF THESE STORMS WILL MOVE SOUTHEAST ACROSS THE CWFA WEDNESDAY NIGHT. THE ETA MODEL SHOWS WEST TO NORTHWEST FLOW ALOFT ACROSS WEST TX THROUGH 60 HOURS. A SFC LEE TROUGH WILL MOVE EAST ACROSS THE CWFA ON THU WITH A CHANCE FOR AFTERNOON THUNDERSTORMS DEVELOPING ALONG AND EAST OF THE SFC TROUGH AXIS. ATTM THE BEST CHANCES FOR RAIN ON THURSDAY WILL BE OVER THE EASTERN COUNTIES. HIGH TEMPERATURES WILL SLOWLY WARM ACROSS THE CWFA DURING THE NEXT COUPLE OF AFTERNOONS. EXTENDED FORECAST: THE LONG RANGE MODELS SHOW THE UPPER LEVEL RIDGE OVER THE WESTERN CONUS SLOWLY DRIFTING EAST THROUGH THE EXTENDED PERIOD. WEST TO NORTHWEST FLOW ALOFT WILL CONTINUE ACROSS THE CWFA. WITH DEEPER MOISTURE IN PLACE THERE WILL BE A SLIGHT CHANCE OF THUNDERSTORMS. EXPECT WARM AFTERNOON HIGHS. PRELIMINARY: FRI 58/82/59/85 0122 TUL 57/83/58/86 0122 CDS 63/86/64/91 --22 BNF 61/86/64/89 0122 LUB 60/85/63/88 0122 ASP 64/88/65/92 2-22 .LUB...NONE. 20
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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.