Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 162, NWS Amarillo, TX
NWS Amarillo, TX issued this severe thunderstorm warning at Aug 23, 2001, 7:58 PM CDT for Beaver County, Oklahoma. It was in force for 47 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
- Aug 23, 2001, 7:58 PM CDT (00:58 UTC)
- Expired
- Aug 23, 2001, 8:45 PM CDT
- In force
- 47 min
- Issued by
- NWS Amarillo, TX
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Beaver County, OK
The radar
The Dodge City radar (KDDC), 123 km from the middle of the area, began a volume at 01:00 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 |
|---|---|---|---|
| Aug 23, 8:03 PM CDT | Hail 0.75 | Beaver, OK |
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 |
|---|---|---|---|
| Aug 23, 3:30 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Dodge City, (KDDC), launched 00:00Z, 1.0 hours before the alert went out and 126 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
- 1476 J/kg
- Mixed-layer CIN
- -44 J/kg
- Mixed-layer LCL
- 2129 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 15 m²/s²
- 0-3 km storm-relative helicity
- 43 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.4
The text
As transmitted, in the capitals the NWS used until 2016.
788 WUUS54 KAMA 240058 SVRAMA OKC007-240145- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE AMARILLO TX 758 PM CDT THU AUG 23 2001 THE NATIONAL WEATHER SERVICE HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... BEAVER COUNTY IN THE OKLAHOMA PANHANDLE * UNTIL 845 PM CDT * AT 758 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM OVER BEAVER...MOVING EAST AT 20 MPH. * SOME LOCATIONS AFFECTED BY THE STORM INCLUDE... BEAVER...BALKO...BOYD...BRYANS CORNER...ELMWOOD...FLORIS... FORGAN...KNOWLES...MOCANE AND SLAPOUT NICKEL SIZE HAIL...DAMAGING WINDS...AND TORRENTIAL RAINS ARE EXPECTED WITH THIS STORM. TAKE COVER IN A SUBSTANTIAL SHELTER. LAT...LON 3685 10090 3657 10082 3660 10007 3698 10019 SLATTERY
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 Aug 23, 1:45 PM CDT, 6 hours 13 minutes earlier.
Area forecast discussion, Aug 23, 1:45 PM CDT, 6 hours 13 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, 2 hours 18 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, 1 hour 29 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...
Local storm report, Aug 23, 7:36 PM CDT, 22 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AMARILLO TX
736 PM CDT THU AUG 23 2001
TIME(CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0328 PM JERICHO TX .88 INCH HAIL
08/23/01 DONLEY REPORTED BY COUNTY EOC
0341 PM 7 N AMARILLO TX 1.75 INCH HAIL
08/23/01 POTTER REPORTED BY ARES SPOTTER
0345 PM 6 N AMARILLO TX 1.75 INCH HAIL
08/23/01 POTTER REPORTED BY LOCAL MEDIA
0357 PM 6 N AMARILLO TX 1.75 INCH HAIL
08/23/01 POTTER REPORTED BY NWS EMPLOYEE
0405 PM 5 NNE AMARILLO TX 1.75 INCH HAIL
08/23/01 POTTER REPORTED BY PUBLIC
0410 PM 15 W CONWAY TX 65 MPH TSTM WIND GUST
08/23/01 CARSON REPORTED BY PUBLIC
0428 PM ASHTOLA TX .75 INCH HAIL
08/23/01 DONLEY REPORTED BY S.O.
0429 PM JERICHO TX WIND DAMAGE
08/23/01 DONLEY CATTLE TRUCK BLOWN OVER.
REPORTED BY STORM SPOTTER
0434 PM 2 E CLARENDON TX TORNADO
08/23/01 DONLEY BRIEF TOUCHDOWN. REPORTED
BY S.O.
0450 PM LELIA LAKE TX .88 INCH HAIL
08/23/01 DONLEY REPORTED BY S.O.
0505 PM LELIA LAKE TX .88 INCH HAIL
08/23/01 DONLEY REPORTED BY ARES SPOTTERS
0510 PM LELIA LAKE TX .88 INCH HAIL
08/23/01 DONLEY REPORTED BY NWS SPOTTER
0515 PM GOODNIGHT TX .88 INCH HAIL
08/23/01 ARMSTRONG REPORTED BY ARES SPOTTER
0517 PM GOODNIGHT TX .88 INCH HAIL
08/23/01 ARMSTRONG REPORTED BY NWS SPOTTER
0537 PM HEDLEY TX .88 INCH HAIL
08/23/01 DONLEY REPORTED BY ARES SPOTTER
0545 PM 0.5 S HEDLEY TX WIND DAMAGE
08/23/01 DONLEY 2 INCH DIAMETER TREE LIMBS
BLOWN DOWN. REPORTED BY NWS
SPOTTER
JW/LGThe office that day
Everything else NWS Amarillo, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 23, 7:18 PM CDT | Severe Thunderstorm Warning | AMA | Texas | 42 min |
Nearby
Severe Thunderstorm Warnings in Oklahoma, 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.