Alert archive / Texas / Severe Thunderstorm Warnings in 2000
Severe Thunderstorm Warning 121, NWS Amarillo, TX
NWS Amarillo, TX issued this severe thunderstorm warning at Jun 20, 2000, 8:43 PM CDT for Donley County, Texas. It was in force for 62 min. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Jun 20, 2000, 8:43 PM CDT (01:43 UTC)
- Expired
- Jun 20, 2000, 9:45 PM CDT
- In force
- 62 min
- Issued by
- NWS Amarillo, TX
- Area
- Whole counties
County Donley County, TX
The radar
The Amarillo radar (KAMA), 87 km from the middle of the area, began a volume at 01:43 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 |
|---|---|---|---|
| Jun 20, 9:00 PM CDT | Thunderstorm Wind 52 E | Clarendon, 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 |
|---|---|---|---|
| Jun 20, 7:30 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Amarillo Airport, TX (KAMA), launched 00:00Z, 1.7 hours before the alert went out and 86 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
- 337 J/kg
- Mixed-layer CIN
- -10 J/kg
- Mixed-layer LCL
- 3019 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- -31 m²/s²
- 0-3 km storm-relative helicity
- 8 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.5
The text
As transmitted, in the capitals the NWS used until 2016.
005 WUUS54 KAMA 210143 SVRAMA TXC129-210245- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE AMARILLO TX 843 PM CDT TUE JUN 20 2000 THE NATIONAL WEATHER SERVICE IN AMARILLO HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... DONLEY COUNTY IN THE TEXAS PANHANDLE * UNTIL 945 PM CDT * AT 843 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 13 MILES WEST OF CLARENDON...MOVING EAST AT 20 MPH. * SOME LOCATIONS AFFECTED BY THE STORM INCLUDE... CLARENDON...HEDLEY AND LELIA LAKE LARGE HAIL...DAMAGING WINDS...AND TORRENTIAL RAINS ARE EXPECTED WITH THIS STORM. TAKE COVER IN A SUBSTANTIAL SHELTER.
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 Jun 20, 6:40 PM CDT, 2 hours 3 minutes earlier.
Area forecast discussion, Jun 20, 6:40 PM CDT, 2 hours 3 minutes before
TEXAS/OKLAHOMA PANHANDLES FORECAST DISCUSSION NATIONAL WEATHER SERVICE AMARILLO TX 640 PM CDT TUE JUN 20 2000 UPDATED ZNS TO GO WITH SCATTERED POPS W AND S. CONVECTION FIRED IN SW ZNS WHERE TEMPS GOT INTO UPPER 90S THIS AFTN. PLETHORA OF BOUNDARIES ON AMA 88D. MAIN SYNOPTIC SCALE BOUNDARY STRETCHING FM PRATT KS SW TO SLAPOUT THEN N AMA AND LOOPING BACK W INTO NE NM. N/S BOUNDARY OFF CAPROCK W PAMPA HELPING IGNITE STRONGEST STORMS ATTM WHERE CAPE VALUES IN EXCESS OF 3500 J/KG. EXPECT STORMS TO CONTINUE TO BUILD W ALONG MAIN BOUNDARY INTO OK PNHDL/NE ZNS THIS EVE AS WAA DEVELOPS WITH LLVL JET. ADDED LIFT FM UPPER LEVEL JET STREAK AND DIFFLUENT THCKNS MAY ALSO BRING BOUT OF HEAVY RAIN IN NE WITH TRAINING CELLS...THOUGH EXPECT BULK OF HEAVY RAIN TO BE E IN OK. ALSO TWEAKED WINDS TO MORE ERLY DIRECTION ACROSS NW ZNS BEHIND FNT. .AMA... TX...NONE. OK...NONE. COBB
In the hours before
Special weather statement, Jun 20, 7:51 PM CDT, 52 minutes before
OKZ002-003-TXZ002>005-007>015-017>020-210600- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AMARILLO TX 751 PM CDT TUE JUN 20 2000 THE NATIONAL WEATHER SERVICE IN AMARILLO HAS CLEARED A PORTION OF SEVERE THUNDERSTORM WATCH 472. COUNTIES CLEARED INCLUDE: IN THE TEXAS PANHANDLE: OLDHAM... OLDHAM COUNTY WAS NOT INTENDED TO BE INCLUDED IN THE WATCH. SEVERE THUNDERSTORM WATCH 472 REMAINS VALID UNTIL 100 AM CDT WEDNESDAY FOR THE FOLLOWING COUNTIES: IN THE OKLAHOMA PANHANDLE: TEXAS...BEAVER... IN THE TEXAS PANHANDLE: SHERMAN...HANSFORD...OCHILTREE...POTTER...LIPSCOMB...MOORE... HUTCHINSON...ROBERTS...HEMPHILL...CARSON...GRAY...WHEELER... RANDALL...ARMSTRONG...DONLEY...COLLINGSWORTH... SC
The office that day
Everything else NWS Amarillo, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 20, 11:16 PM CDT | Severe Thunderstorm Warning | AMA | Dallam | 59 min |
| Jun 21, 1:46 AM CDT | Severe Thunderstorm Warning | AMA | Ochiltree | 29 min |
| Jun 21, 2:06 AM CDT | Severe Thunderstorm Warning | AMA | Lipscomb | 39 min |
Nearby
Severe Thunderstorm Warnings in Texas, 2000Every severe thunderstorm warning in 2000
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.