Alert archive / Texas / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 61, NWS Amarillo, TX
NWS Amarillo, TX issued this severe thunderstorm warning at May 17, 2001, 8:42 PM CDT for Oldham County, Texas. It was in force for 48 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 17, 2001, 8:42 PM CDT (01:42 UTC)
- Expired
- May 17, 2001, 9:30 PM CDT
- In force
- 48 min
- Issued by
- NWS Amarillo, TX
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Oldham County, TX
The radar
The Amarillo radar (KAMA), 67 km from the middle of the area, began a volume at 01:42 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 17, 9:05 PM CDT | Hail 1 | Boys Ranch, 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, 1.7 hours before the alert went out and 68 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
- 1564 J/kg
- Mixed-layer CIN
- -85 J/kg
- Mixed-layer LCL
- 1673 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- -2 m²/s²
- 0-3 km storm-relative helicity
- 103 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.6
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS54 KAMA 180145 SVRAMA TXC359-180230- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE AMARILLO TX 842 PM CDT THU MAY 17 2001 THE NATIONAL WEATHER SERVICE HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTHEASTERN OLDHAM COUNTY IN THE TEXAS PANHANDLE * UNTIL 930 PM CDT * AT 842 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 11 MILES NORTHWEST OF BOYS RANCH...OR ABOUT 23 MILES NORTH OF VEGA...MOVING EAST AT 15 MPH. * SOME LOCATIONS AFFECTED BY THE STORM INCLUDE... BOYS RANCH AND HIGHWAY 385 DESTRUCTIVE HAIL CAN BE EXPECTED WITH THIS STORM-TAKE COVER NOW. GO TO THE LOWEST FLOOR OF A STURDY BUILDI<NG AND AVOID WINDOWS! LAT...LON 3563 10246 3542 10249 3538 10216 3563 10216
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 17, 3:15 PM CDT, 5 hours 27 minutes earlier.
Area forecast discussion, May 17, 3:15 PM CDT, 5 hours 27 minutes before
TEXAS/OKLAHOMA PANHANDLES FORECAST DISCUSSION NATIONAL WEATHER SERVICE AMARILLO TX 315 PM CDT THU MAY 17 2001 TEMPS IN MID 70S TO MID 80S DEG F ACRS PNHDLS HAVE ALLOWED AMS TO BCM VERY UNSTABLE. AMA 12Z SOUNDING ADJUSTED FOR MID 80S YEILDS LI OF -11. CDFNT LIES ACRS SERN AND SRN ZNS. DIFFUSE OUTFLOW BNDRY LIES ACRS NRN ZNS. ELY COMPONENT TO SFC AND LOW-LVL WNDS ON N SIDE OF CDFNT WL PVL THIS EVE AND TNGT...ASSISTING IN DVLPMT OF TSTMS. H5 VOT MAX AND JET STREAK WL MOV INTO AREA FM W THIS EVE AND TNGT... WHICH WL HELP INSTBY BE RELEASED. WL MENTION PSBL SVR AND LOCALLY HVY RNFL PSBL ALL SXNS TNGT. SFC WNDS BCM SELY ON FRI OVR WRN ZNS ...AND WITH CNVGNC ALG RETREATING FNT OVR THIS AREA WILL KEEP HIST CHC POPS FRI AND FRI NGT OVR WRN AND CNTRL ZNS. SAME SITUATION FOR SAT...I.E. AXIS OF INSTBY ALG CNVGNC ZONE OVR WRN AND SRN ZNS. AVN BRINGS CDFNT INTO NRN ZNS SAT EVE. THUS...CHC POPS SAT NGT AS WELL. STGR CDFNT TO ARRIVE LATE SUN/ERY MON...SO WL KEEP CHC/SLGT CHC TSTMS IN THIS TIME FRAME AS WELL. WITH CONSIDERABLE UNCERTAINTY IN LATER PDS...WL LEAVE SLGT CHC POPS IN FOR WED...WITH GRDL WMG TREND TUE THRU THU. 03 .AMA... TX...NONE. OK...NONE0. COCKRELL
The office that day
Everything else NWS Amarillo, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 17, 8:27 PM CDT | Severe Thunderstorm Warning | AMA | Hartley | 48 min |
| May 17, 9:10 PM CDT | Severe Thunderstorm Warning | AMA | Hansford | 50 min |
| May 17, 9:15 PM CDT | Severe Thunderstorm Warning | AMA | Hutchinson | 45 min |
| May 17, 9:19 PM CDT | Severe Thunderstorm Warning | AMA | Potter | 56 min |
| May 17, 9:51 PM CDT | Severe Thunderstorm Warning | AMA | Randall | 54 min |
| May 17, 9:55 PM CDT | Severe Thunderstorm Warning | AMA | Carson | 65 min |
| May 17, 10:12 PM CDT | Severe Thunderstorm Warning | AMA | Potter | 48 min |
| May 17, 10:16 PM CDT | Severe Thunderstorm Warning | AMA | Deaf Smith | 59 min |
| May 17, 10:34 PM CDT | Severe Thunderstorm Warning | AMA | Gray, Roberts | 26 min |
| May 17, 10:44 PM CDT | Severe Thunderstorm Warning | AMA | Randall | 46 min |
| May 17, 10:48 PM CDT | Severe Thunderstorm Warning | AMA | Armstrong | 42 min |
| May 17, 10:59 PM CDT | Severe Thunderstorm Warning | AMA | Carson | 31 min |
| May 17, 11:00 PM CDT | Severe Thunderstorm Warning | AMA | Donley, Gray | 60 min |
| May 17, 11:00 PM CDT | Severe Thunderstorm Warning | AMA | Roberts | 60 min |
| May 17, 11:25 PM CDT | Severe Thunderstorm Warning | AMA | Collingsworth, Wheeler | 65 min |
| May 17, 11:54 PM CDT | Severe Thunderstorm Warning | AMA | Donley | 51 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.