Alert archive / Texas / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 102, NWS Amarillo, TX
NWS Amarillo, TX issued this severe thunderstorm warning at May 29, 2001, 6:15 AM CDT for Sherman County, Texas. It was in force for 60 min. 1 report 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 29, 2001, 6:15 AM CDT (11:15 UTC)
- Expired
- May 29, 2001, 7:15 AM CDT
- In force
- 60 min
- Issued by
- NWS Amarillo, TX
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Sherman County, TX
The radar
The Amarillo radar (KAMA), 122 km from the middle of the area, began a volume at 11:19 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 |
|---|---|---|---|
| May 29, 6:25 AM CDT | Hail 1 | Stratford, 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
Amarillo Airport, TX (KAMA), launched 00:00Z, 11.3 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
- 1376 J/kg
- Mixed-layer CIN
- -207 J/kg
- Mixed-layer LCL
- 719 m above ground
- 0-6 km bulk shear
- 46 kt
- 0-1 km storm-relative helicity
- 56 m²/s²
- 0-3 km storm-relative helicity
- 65 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 291115 SVRAMA TXC421-291215- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE AMARILLO TX 615 AM CDT TUE MAY 29 2001 THE NATIONAL WEATHER SERVICE HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SHERMAN COUNTY IN THE TEXAS PANHANDLE * UNTIL 715 AM CDT * AT 615 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 9 MILES WEST OF STRATFORD...MOVING EAST AT 45 MPH. * SOME LOCATIONS AFFECTED BY THE STORM INCLUDE... STRATFORD LARGE HAIL...DAMAGING WINDS...AND TORRENTIAL RAINS ARE EXPECTED WITH THIS STORM. TAKE COVER IN A SUBSTANTIAL SHELTER. LAT...LON 3648 10215 3607 10215 3607 10163 3649 10163
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 29, 3:24 AM CDT, 2 hours 51 minutes earlier.
Area forecast discussion, May 29, 3:24 AM CDT, 2 hours 51 minutes before
TEXAS/OKLAHOMA PANHANDLES FORECAST DISCUSSION NATIONAL WEATHER SERVICE AMARILLO TX 324 AM CDT TUE MAY 29 2001 WIDESPREAD CONVECTION HAS MOVED OVER THE WESTERN AND SOUTHERN TEXAS PANHANDLE SINCE ABOUT 07Z THIS MORNING. NO SEVERE REPORTS SO FAR BUT RECENT TRENDS FROM AMARILLO 88D SUGGEST SCATTERED STRONG STORMS OVER RANDALL COUNTY WITH OTHER NUMEROUS/INTENSE CELLS BETWEEN DALHART AND HEREFORD. STORMS WILL QUICKLY TRACK ACROSS CENTRAL AND EASTERN ZONES THROUGH THE EARLY MORNING HOURS BEFORE EXITING THE EASTERN ZONES BY MID MORNING. APPEARS STRONG WINDS ARE THE PRIMARY CONCERN WITH THESE STORMS. AMARILLO VAD WIND PROFILER SHOWS LOW LEVEL JET OF 25 KTS HAS BACKED WITH GOOD VEERING THROUGH 6KM. MID/UPPER LEVEL LOW MOVING OVER CENTRAL NM EXPECTED TO DRAMATICALLY WEAKEN CAPPING INVERSION THAT WAS SO PREVALENT YESTERDAY. DRYLINE CURRENTLY ALONG THE ROCKY MOUNTAIN FOOT HILLS OF NM EXPECTED TO MIX EASTWARD LATER THIS AFTERNOON. EFFECT OF MORNING CONVECTION OVER PANHANDLES ON DRYLINE LOCATION LATER TODAY IS UNCERTAIN AND CONFIDENCE THAT THE DRYLINE WILL REACH THE WESTERN TEXAS PANHANDLE IS CONSIDERABLY LOW. UPPER TROUGH OVER NEW MEXICO AND ASSOCIATED 50KT 5H SPEED MAX SHOULD ALLOW FOR DECENT VERTICAL PROFILES LATER TODAY TO KEEP THE SEVERE THREAT GOING WHEN AIRMASS RECOVERS LATE THIS AFTERNOON IN RELATIVELY UNCAPPED ATMOSPHERE. SATELLITE IMAGERY SUGGESTS A GOOD BIT OF SUNSHINE/WARMING ONCE MORNING CONVECTION ENDS. AS UPPER TROUGH EXITS WEDNESDAY HIGH PLAINS COOL FRONT EXPECTED TO REACH NORTHWEST ZONES LATER TONIGHT WITH SURFACE HIGH PRESSURE SPREADING OVER THE PANAHNADLES ON WEDNESDAY. REASONS TO MAINTAIN POPS INCLUDE LITTLE CAP...STRONG INSOLATION AND MODERATE INSTABILTY. FLOW ALOFT ALSO EXPECTED TO MAKE A SOUTHWEST TO NORTHWEST TRANSITION AS WELL. NO CHANGES PLANNED TO EXTENDED. PRELIM CCF... AMA TB 86/59 79/55 80 342 DHT TB 85/55 77/52 77 462 .AMA... TX...NONE. OK...NONE. SLATTERY
In the hours before
Special weather statement, May 29, 5:19 AM CDT, 56 minutes before
OKZ001>003-TXZ001>020-291800- TEXAS/OKLAHOMA PANHANDLES THUNDERSTORM OUTLOOK...UPDATED NATIONAL WEATHER SERVICE AMARILLO TX 519 AM CDT TUE MAY 29 2001 THERE IS A MODERATE RISK OF SEVERE THUNDERSTORMS TODAY AND TONIGHT OVER ALL OF THE TEXAS AND OKLAHOMA PANHANDLES. A STRONG UPPER LEVEL DISTURBANCE OVER NEW MEXICO WILL MOVE NORTHEAST TODAY. RICH MOISTURE AND HIGH INSTABILITY LEVELS OVER THE PANHANDLES WILL CONTRIBUTE TO THE SEVERE THUNDERSTORM POTENTIAL. THESE FEATURES WILL ALLOW MODERATE INSTABILITY TO CONTINUE OVER THE PANHANDLES THROUGH TONIGHT. A DRYLINE IS ALSO EXPECTED TO DEVELOP OVER EASTERN NEW MEXICO AND APPROACH THE WESTERN PANHANDLES LATER THIS AFTERNOON. A COOL FRONT WILL MOVE SOUTHWARD OVER THE CENTRAL HIGH PLAINS AND REACH THE NORTHWEST PANHANDLES LATE TONIGHT. THE MAIN SEVERE WEATHER THREAT WILL BE LARGE HAIL...DAMAGING WINDS AND ISOLATED TORNADOES. POWERFUL UPDRAFTS WITHIN THE STORMS MAY CAUSE THE HAIL TO BE VERY LARGE AND DAMAGING. HEAVY RAINS WILL ALSO POSE A THREAT. SPOTTER GROUPS AND EMERGENCY MANAGEMENT PERSONNEL ACROSS THE TEXAS AND OKLAHOMA PANHANDLES SHOULD REMAIN ALERT FOR POSSIBLE ACTIVATION TODAY AND TONIGHT. SLATTERY
Special weather statement, May 29, 5:19 AM CDT, 56 minutes before
OKZ001>003-TXZ001>020-291800- TEXAS/OKLAHOMA PANHANDLES THUNDERSTORM OUTLOOK NATIONAL WEATHER SERVICE AMARILLO TX 519 AM CDT TUE MAY 29 2001 THERE IS A MODERATE RISK OF SEVERE THUNDERSTORMS TODAY AND TONIGHT OVER MOST OF THE TEXAS AND OKLAHOMA PANHANDLES. THE MODERATE RISK AREA IS GENERALLY SOUTH OF A LINE FROM BOISE CITY TO PERRYTON TO WHEELER. SURROUNDING THE MODERATE RISK AREA THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS OVER THE REMAINDER OF THE TEXAS AND OKLAHOMA PANHANDLES. A STRONG UPPER LEVEL DISTURBANCE OVER NEW MEXICO WILL MOVE NORTHEAST TODAY. RICH MOISTURE AND HIGH INSTABILITY LEVELS OVER THE PANHANDLES WILL CONTRIBUTE TO THE SEVERE THUNDERSTORM POTENTIAL. THESE FEATURES WILL ALLOW MODERATE INSTABILITY TO CONTINUE OVER THE PANHANDLES THROUGH TONIGHT. A DRYLINE IS ALSO EXPECTED TO DEVELOP OVER EASTERN NEW MEXICO AND APPROACH THE WESTERN PANHANDLES LATER THIS AFTERNOON. A COOL FRONT WILL MOVE SOUTHWARD OVER THE CENTRAL HIGH PLAINS AND REACH THE NORTHWEST PANHANDLES LATE TONIGHT. THE MAIN SEVERE WEATHER THREAT WILL BE LARGE HAIL...DAMAGING WINDS AND ISOLATED TORNADOES. POWERFUL UPDRAFTS WITHIN THE STORMS MAY CAUSE THE HAIL TO BE VERY LARGE AND DAMAGING. HEAVY RAINS WILL ALSO POSE A THREAT. SPOTTER GROUPS AND EMERGENCY MANAGEMENT PERSONNEL ACROSS THE TEXAS AND OKLAHOMA PANHANDLES SHOULD REMAIN ALERT FOR POSSIBLE ACTIVATION TODAY AND TONIGHT. SLATTERY
The office that day
Everything else NWS Amarillo, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 29, 3:28 AM CDT | Severe Thunderstorm Warning | AMA | Hartley | 47 min |
| May 29, 3:40 AM CDT | Severe Thunderstorm Warning | AMA | Hutchinson | 50 min |
| May 29, 5:12 AM CDT | Severe Thunderstorm Warning | AMA | Dallam, Hartley | 63 min |
| May 29, 10:53 AM CDT | Severe Thunderstorm Warning | AMA | Dallam | 22 min |
| May 29, 4:43 PM CDT | Severe Thunderstorm Warning | AMA | Potter | 47 min |
| May 29, 5:14 PM CDT | Severe Thunderstorm Warning | AMA | Hutchinson | 46 min |
| May 29, 5:21 PM CDT | Severe Thunderstorm Warning | AMA | Randall | 39 min |
| May 29, 5:29 PM CDT | Severe Thunderstorm Warning | AMA | Potter | 61 min |
| May 29, 5:38 PM CDT | Tornado Warning | AMA | Potter | 52 min |
| May 29, 5:44 PM CDT | Tornado Warning | AMA | Randall | 46 min |
| May 29, 5:58 PM CDT | Severe Thunderstorm Warning | AMA | Hutchinson | 47 min |
| May 29, 6:06 PM CDT | Severe Thunderstorm Warning | AMA | Carson | 54 min |
| May 29, 6:27 PM CDT | Severe Thunderstorm Warning | AMA | Potter | 48 min |
| May 29, 6:45 PM CDT | Tornado Warning | AMA | Carson | 45 min |
| May 29, 6:58 PM CDT | Severe Thunderstorm Warning | AMA | Carson | 62 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; radar from the NEXRAD Level II archive.