Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2000
Severe Thunderstorm Warning 160, NWS Amarillo, TX
NWS Amarillo, TX issued this severe thunderstorm warning at Jul 22, 2000, 12:50 AM CDT for Beaver County, Oklahoma. It was in force for 55 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
- Jul 22, 2000, 12:50 AM CDT (05:50 UTC)
- Expired
- Jul 22, 2000, 1:45 AM CDT
- In force
- 55 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), 99 km from the middle of the area, began a volume at 05:51 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 |
|---|---|---|---|
| Jul 22, 1:10 AM CDT | Thunderstorm Wind 52 M | 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 nearest sounding before it
Dodge City, (KDDC), launched 00:00Z, 5.8 hours before the alert went out and 103 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
- 905 J/kg
- Mixed-layer CIN
- -227 J/kg
- Mixed-layer LCL
- 1395 m above ground
- 0-6 km bulk shear
- 49 kt
- 0-1 km storm-relative helicity
- -1 m²/s²
- 0-3 km storm-relative helicity
- 265 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.9
The text
As transmitted, in the capitals the NWS used until 2016.
852 WUUS54 KAMA 220552 SVRAMA OKC007-220645- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE AMARILLO TX 1250 AM CDT SAT JUL 22 2000 THE NATIONAL WEATHER SERVICE IN AMARILLO HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... BEAVER COUNTY IN THE OKLAHOMA PANHANDLE * UNTIL 145 AM CDT * AT 1250 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS FROM 31 MILES NORTH OF KNOWLES TO 15 MILES NORTH OF TURPIN...MOVING SOUTHEAST AT 50 MPH. * SOME LOCATIONS AFFECTED BY THESE STORMS INCLUDE... BEAVER...BALKO...BOYD...BRYANS CORNER...ELMWOOD...FLORIS... FORGAN...GATE...GRAY...KNOWLES...MOCANE...SLAPOUT AND TURPIN DESTRUCTIVE WINDS CAN BE EXPECTED. IF YOU CANNOT GET UNDERGROUND...GO TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A STURDY BUILDING. AVOID WINDOWS THIS STORM HAS A HISTORY OF PRODUCING DAMAGING WINDS. GO INSIDE A STURDY BUILDING AND STAY AWAY FROM WINDOWS. LAT...LON 3726 10001 3714 10097 3650 10095 3650 9999
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 Jul 21, 7:45 PM CDT, 5 hours 5 minutes earlier.
Area forecast discussion, Jul 21, 7:45 PM CDT, 5 hours 5 minutes before
TEXAS/OKLAHOMA PANHANDLES FORECAST DISCUSSION NATIONAL WEATHER SERVICE AMARILLO TX 745 PM CDT FRI JUL 21 2000 ISSUED UPDT TO NWRN ZNS...CALLING FOR CATEGORICAL RAIN AND TSTMS IN WRN OK PNHDL...AND CALLING FOR NUMEROUS AREAL COVERAGE TERMS IN NWRN TX PNHDL. ECHOES SEEN ON 88D CONT MOVG SEWD...TWD AREA OF MAXIMUM SFC MSTR FLUX CNVGNC AND SFC WAA...BOTH INVOF SFC BNDRY EXTDG SEWD ACRS FCST AREA. NO CHANGES TO LATER PDS. 03 .AMA... TX...NONE. OK...NONE. COCKRELL/SLATTERY
Nearby
Severe Thunderstorm Warnings in Oklahoma, 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.