Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 161, NWS Amarillo, TX
NWS Amarillo, TX issued this severe thunderstorm warning at Aug 23, 2001, 7:18 PM CDT for Texas County, Oklahoma; Hansford County, Texas. It was in force for 42 min. No storm report in the archive falls 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.
The facts
- Issued
- Aug 23, 2001, 7:18 PM CDT (00:18 UTC)
- Expired
- Aug 23, 2001, 8:00 PM CDT
- In force
- 42 min
- Issued by
- NWS Amarillo, TX
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
Counties Texas County, OK, Hansford County, TX
The radar
The Amarillo radar (KAMA), 164 km from the middle of the area, began a volume at 00:20 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.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Aug 23, 3:30 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Amarillo Airport, TX (KAMA), launched 00:00Z, 0.3 hours before the alert went out and 164 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
- 961 J/kg
- Mixed-layer CIN
- -115 J/kg
- Mixed-layer LCL
- 2135 m above ground
- 0-6 km bulk shear
- 48 kt
- 0-1 km storm-relative helicity
- 20 m²/s²
- 0-3 km storm-relative helicity
- 142 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.1
The text
As transmitted, in the capitals the NWS used until 2016.
847
WUUS54 KAMA 240021
SVRAMA
OKC139-TXC195-240100-
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE AMARILLO TX
718 PM CDT THU AUG 23 2001
THE NATIONAL WEATHER SERVICE HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
EASTERN TEXAS COUNTY IN THE OKLAHOMA PANHANDLE
NORTHERN HANSFORD COUNTY IN THE TEXAS PANHANDLE
* UNTIL 800 PM CDT
* AT 718 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM 5 MILES SOUTHEAST OF GUYMON...MOVING SOUTHEAST
AT 15 MPH.
* SOME LOCATIONS AFFECTED BY THE STORM INCLUDE...
ADAMS...BAKER...HARDESTY...HOOKER AND OPTIMA
NICKEL SIZE HAIL...DAMAGING WINDS...AND TORRENTIAL RAINS ARE EXPECTED WITH
THIS STORM. TAKE COVER IN A SUBSTANTIAL SHELTER.
LAT...LON 3669 10143 3647 10148 3634 10126 3656 10107
3662 10096 3690 10102 3695 10122What 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 Aug 23, 1:45 PM CDT, 5 hours 33 minutes earlier.
Area forecast discussion, Aug 23, 1:45 PM CDT, 5 hours 33 minutes before
TEXAS/OKLAHOMA PANHANDLES FORECAST DISCUSSION NATIONAL WEATHER SERVICE AMARILLO TX 145 PM CDT THU AUG 23 2001 SURFACE ANALYSIS SHOWED A BROAD AREA OF SURFACE LOW PRESSURE FROM SOUTHERN KANSAS EXTENDING SOUTHWEST ACROSS THE PANHANDLES. AT UPPER- LEVELS...A FAIRLY VIGOROUS SHORTWAVE IN EASTERN COLORADO WAS MOVING INTO THE PLAINS THIS AFTERNOON. INSTABILITY AND JET ENERGY ASSOCIATED WITH THIS FEATURE POINTED TO PROBABLE STORM INITIATION LATE THIS AFTERNOON IN THE NORTHEASTERN TEXAS PANHANDLE. EXPECT SOME OF THESE STORMS TO BECOME SEVERE MOVING TOWARD AND INTO NORTHWESTERN OKLAHOMA EARLY THIS EVENING. THE MODELS DIFFER AS TO STORM DEVELOPMENT FURTHER WEST. THE ETA AND RUC DEVELOP CONVECTION AGGRESSIVELY IN THE WESTERN AND CENTRAL PANHANDLE LATER THIS EVENING WITH THE AVN DRY. FAVOR THE ETA/RUC SOLUTION (PER COORDINATION WITH SPC) WITH SCATTERED STORMS DEVELOPING AND PERSISTING THROUGH MUCH OF THE NIGHT ASSOCIATED WITH A SECOND VORT MAX IN NORTHEASTERN NEW MEXICO. THIS PIECE OF ENERGY SHOULD PUSH SOUTHEAST OF THE AREA FRIDAY AS NORTHWEST FLOW STRENGTHENS. HOWEVER...WITH DEEP LOW-LEVEL MOISTURE IN PLACE...STORMS COULD ONCE AGAIN FIRE UP ESPECIALLY IN THE EAST PERSISTING INTO FRIDAY NIGHT. A COLD FRONT PUSHING INTO THE NORTHERN ZONES AND ACROSS THE FORECAST AREA FRIDAY NIGHT AND SATURDAY WILL AGGRAVATE THE SITUATION CONTINUING TO HELP FOCUS CONVECTIVE DEVELOPMENT. FOR THE EXTENDED PERIOD...PERSISTENT NORTHWEST FLOW DEVELOPS WITH EMBEDDED SHORTWAVES SATURDAY NIGHT...SUNDAY NIGHT AND MONDAY NIGHT. WILL UPGRADE TO A CHANCE OF STORMS IN THE EAST ON FRIDAY NIGHT AND IN THE WEST ON SATURDAY NIGHT AND SUNDAY NIGHT WITH THE NEW AVN DEPICTING MORE DETAIL IN THE SHORTWAVE PATTERN. TEMPERATURES SHOULD BE A BIT COOLER THAN NORMAL AS HIGH PRESSURE SETTLES IN EARLY IN THE WEEK. A LEE TROUGH SHOULD DEVELOP BY MID WEEK WITH TEMPERATURES WARMING AND A BIT DRIER CONDITIONS POSSIBLE AS AN UPPER-LEVEL RIDGE STRENGTHENS ACROSS THE SOUTHWESTERN STATES. AMA 67/93 65/90 63 423 DHT 62/89 61/87 61 422 .AMA... TX...NONE. OK...NONE. CB
In the hours before
Special weather statement, Aug 23, 5:40 PM CDT, 1 hour 38 minutes before
OKZ003-TXZ002>020-232300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AMARILLO TX 540 PM CDT THU AUG 23 2001 THE NATIONAL WEATHER SERVICE OFFICE IN AMARILLO HAS CLEARED THE FOLLOWING COUNTIES FROM SEVERE THUNDERSTORM WATCH NUMBER 690... IN THE OKLAHOMA PANHANDLE...BEAVER...IN THE TEXAS PANHANDLE... HANSFORD...HARTLEY...MOORE...OCHILTREE...OLDHAM...AND SHERMAN. THE THREAT OF SEVERE WEATHER HAS DIMINISHED IN THESE LOCATIONS. SEVERE THUNDERSTORM WATCH NUMBER 690 REMAINS IN EFFECT UNYIL 9 PM FOR THE FOLLOWING COUNTIES IN THE TEXAS PANHANDLE...ARMSTRONG... CARSON...COLLINGSWORTH...DEAF SMITH...DONLEY...GRAY...HEMPHILL... HUTCHINSON...LIPSCOMB...POTTER...RANDALL...ROBERTS...AND WHEELER. ANDRADE
Special weather statement, Aug 23, 6:29 PM CDT, 49 minutes before
TXZ005-008>010-012>020-240000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AMARILLO TX 629 PM CDT THU AUG 23 2001 THE NATIONAL WEATHER SERVICE IN AMARILLO HAS CLEARED A PORTION OF SEVERE THUNDERSTORM WATCH 690. COUNTIES CLEARED INCLUDE: IN THE TEXAS PANHANDLE: POTTER...LIPSCOMB...HUTCHINSON...ROBERTS...HEMPHILL... CARSON...GRAY...DEAF SMITH...RANDALL... THIS INCLUDES THE CITIES OF...AMARILLO...BOOKER...BORGER... CANADIAN...CANYON...HEREFORD...MIAMI...PAMPA...AND PANHANDLE... SEVERE THUNDERSTORM WATCH 690 REMAINS VALID UNTIL 900 PM CDT THURSDAY FOR THE FOLLOWING COUNTIES: IN THE TEXAS PANHANDLE: WHEELER...ARMSTRONG...DONLEY...COLLINGSWORTH... THIS INCLUDES THE CITIES OF...CLARENDON...CLAUDE...SHAMROCK... AND WELLINGTON...
The office that day
Everything else NWS Amarillo, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 23, 7:58 PM CDT | Severe Thunderstorm Warning | AMA | Beaver | 47 min |
| Aug 24, 5:20 PM CDT | Severe Thunderstorm Warning | AMA | Donley | 55 min |
| Aug 24, 6:05 PM CDT | Severe Thunderstorm Warning | AMA | Lipscomb | 55 min |
Nearby
Severe Thunderstorm Warnings in Oklahoma, 2001Severe 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; radar from the NEXRAD Level II archive.