Alert archive / Texas / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 121, NWS Amarillo, TX
NWS Amarillo, TX issued this severe thunderstorm warning at May 30, 2001, 6:24 PM CDT for Deaf Smith County, Oldham County, Texas. It was in force for 51 min. 2 reports came from inside the area while it was in force.
The area
The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties, with what was reported inside it.
The facts
- Issued
- May 30, 2001, 6:24 PM CDT (23:24 UTC)
- Expired
- May 30, 2001, 7:15 PM CDT
- In force
- 51 min
- Issued by
- NWS Amarillo, TX
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
Counties Deaf Smith County, TX, Oldham County, TX
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| May 30, 6:44 PM CDT | Hail 2.75 | Glenrio Station, TX | |
| May 30, 6:49 PM CDT | Hail 2.75 | Adrian, 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| May 30, 3:00 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Amarillo Airport, TX (KAMA), launched 12:00Z, 11.4 hours before the alert went out and 123 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
- 148 J/kg
- Mixed-layer CIN
- -411 J/kg
- Mixed-layer LCL
- 2031 m above ground
- 0-6 km bulk shear
- 18 kt
- 0-1 km storm-relative helicity
- -56 m²/s²
- 0-3 km storm-relative helicity
- -33 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS54 KAMA 302326 SVRAMA TXC117-359-310015- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE AMARILLO TX 624 PM CDT WED MAY 30 2001 THE NATIONAL WEATHER SERVICE HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTHWESTERN DEAF SMITH COUNTY IN THE TEXAS PANHANDLE SOUTHWESTERN OLDHAM COUNTY IN THE TEXAS PANHANDLE * UNTIL 715 PM CDT * AT 624 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 10 MILES NORTHWEST OF GLENRIO...OR ABOUT 38 MILES WEST OF VEGA...MOVING SOUTHEAST AT 30 MPH. * SOME LOCATIONS AFFECTED BY THE STORM INCLUDE... GLENRIO LARGE HAIL...DAMAGING WINDS...AND TORRENTIAL RAINS ARE EXPECTED WITH THIS STORM. VERY SMALL...BRIEF...BUT DANGEROUS TORNADOES ARE POSSIBLE WITH THIS STORM. TAKE COVER IN A SUBSTANTIAL SHELTER. LAT...LON 3548 10313 3537 10330 3501 10297 3515 10275
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 Amarillo, TX wrote its last area forecast discussion before this severe thunderstorm warning went out at May 30, 3:20 PM CDT, 3 hours 4 minutes earlier.
Area forecast discussion, May 30, 3:20 PM CDT, 3 hours 4 minutes before
TEXAS/OKLAHOMA PANHANDLES FORECAST DISCUSSION...CORRECTED NATIONAL WEATHER SERVICE AMARILLO TX 320 PM CDT WED MAY 30 2001 CONVECTION DEVELOPING OVER NORTHEAST NEW MEXICO THIS AFTERNOON WITH NORTHWEST FLOW SHORTWAVE BACK OVER COLORADO. HIGH PLAINS PROFILERS SHOWS GOOD WESTERLY COMPONENT TO STEERING LEVEL WINDS SUGGEST A DECENT PROBABILITY THESE STORMS WILL AT LEAST MOVE OVER WESTERN ZONES AND PERHAPS CENTRAL ZONES AS WELL. SURFACE WINDS HAVE BACKED AT KTCC AND KCVN AND ARE IN THE PROCESS OF BACKING AT KDHT SUGGESTING SOME FAVORABLE VERTICAL PROFILES AS 55 KT MID LEVEL SPEED MAX OVER THE CENTRAL ROCKIES APPROACHES THE PANHANDLES. LOWER TO MID 50S DEW POINTS IN PLACE SO SUFFICIENT MSTR/INSTABILITY FOR SOME SEVERE STORMS. WILL HOLD ON TO SLIGHT CHANCE POPS FOR FRIDAY AS AIRMASS WILL REMAIN WEAKLY CAPPED WHILE MOISTURE LEVELS REMAIN RATHER HIGH. EASTERN ZONES WILL BE A FAVORED LOCATION...ESPECIALLY FRIDAY NIGHT. NEXT FRONT PROGED TO ARRIVE ON SUNDAY NIGHT...WILL NEED TO INTRODUCE POPS FOR THE SUNDAY AND MONDAY TIME FRAME WITH SLIGHTLY COOLER TEMPS ON MONDAY. .AMA... TX...NONE. OK...NONE. SLATTERY
In the hours before
Special weather statement, May 30, 12:55 PM CDT, 5 hours 29 minutes before
OKZ001>003-TXZ001>020-310500- TEXAS/OKLAHOMA PANHANDLES THUNDERSTORM OUTLOOK NATIONAL WEATHER SERVICE AMARILLO TX 1255 PM CDT WED MAY 30 2001 THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS TODAY AND TONIGHT OVER THE EXTREME SOUTHERN PORTIONS OF THE TEXAS PANHANDLE. THIS AREA INCLUDES THOSE SOUTH OF A VEGA TO WELLINGTON LINE. A STRONG UPPER LEVEL DISTURBANCE OVER WEST-CENTRAL COLORADO WILL MOVE SOUTHEAST INTO THE TEXAS PANHANDLE TONIGHT. AT THE SURFACE... A WEAK COLD FRONT WILL REMAIN OVER THE SOUTHERN TEXAS PANHANDLE. THE ATMOSPHERE WILL REMAIN MOIST AND UNSTABLE OVER THE AREA THROUGH THIS EVENING. THE COMBINATION OF THIS UPPER LEVEL DISTURBANCE...A SURFACE COLD FRONT AND LOW LEVEL MOISTURE WILL PRODUCE SCATTERED THUNDERSTORMS. THE MAIN SEVERE WEATHER THREAT WILL BE DAMAGING WINDS AND LARGE HAIL. HEAVY RAIN AND LOCALIZED FLOODING WILL ALSO BE A CONCERN. SPOTTER GROUPS AND EMERGENCY MANAGEMENT PERSONNEL IN THE SLIGHT RISK AREA SHOULD MONITOR WEATHER DEVELOPMENTS AND BE READY FOR POSSIBLE ACTIVATION THIS AFTERNOON. PLATT
The office that day
Everything else NWS Amarillo, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 29, 7:07 PM CDT | Severe Thunderstorm Warning | AMA | Sherman | 38 min |
| May 29, 7:10 PM CDT | Severe Thunderstorm Warning | AMA | Hutchinson | 65 min |
| May 29, 7:14 PM CDT | Tornado Warning | AMA | Carson | 61 min |
| May 29, 7:45 PM CDT | Tornado Warning | AMA | Gray | 60 min |
| May 29, 7:52 PM CDT | Severe Thunderstorm Warning | AMA | Hansford | 38 min |
| May 29, 8:10 PM CDT | Severe Thunderstorm Warning | AMA | Roberts | 50 min |
| May 29, 8:52 PM CDT | Severe Thunderstorm Warning | AMA | Wheeler | 38 min |
| May 29, 10:08 PM CDT | Severe Thunderstorm Warning | AMA | Gray, Roberts | 52 min |
| May 29, 11:44 PM CDT | Severe Thunderstorm Warning | AMA | Collingsworth | 46 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.