Alert archive / Texas / Severe Thunderstorm Warnings in 2000
Severe Thunderstorm Warning 133, NWS Amarillo, TX
NWS Amarillo, TX issued this severe thunderstorm warning at Jun 23, 2000, 9:43 PM CDT for Hansford County, Texas. 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
- Jun 23, 2000, 9:43 PM CDT (02:43 UTC)
- Expired
- Jun 23, 2000, 10:30 PM CDT
- In force
- 47 min
- Issued by
- NWS Amarillo, TX
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Hansford County, TX
The radar
The Amarillo radar (KAMA), 127 km from the middle of the area, began a volume at 02:45 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 23, 10:00 PM CDT | Thunderstorm Wind 52 E | Gruver, 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, 2.7 hours before the alert went out and 127 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
- 375 J/kg
- Mixed-layer CIN
- -47 J/kg
- Mixed-layer LCL
- 2319 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 7 m²/s²
- 0-3 km storm-relative helicity
- 111 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.6
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS54 KAMA 240243 SVRAMA TXC195-240330- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE AMARILLO TX 943 PM CDT FRI JUN 23 2000 THE NATIONAL WEATHER SERVICE IN AMARILLO HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... HANSFORD COUNTY IN THE TEXAS PANHANDLE * UNTIL 1030 PM CDT * AT 943 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 9 MILES NORTHEAST OF GRUVER...OR ABOUT 12 MILES NORTHWEST OF SPEARMAN...MOVING SOUTHEAST AT 20 MPH. * SOME LOCATIONS AFFECTED BY THE STORM INCLUDE... SPEARMAN LARGE HAIL...DAMAGING WINDS...AND TORRENTIAL RAINS ARE EXPECTED WITH THIS STORM. TAKE COVER IN A SUBSTANTIAL SHELTrER. LAT...LON 3646 10135 3612 10147 3610 10112 3647 10109
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 23, 3:14 PM CDT, 6 hours 29 minutes earlier.
Area forecast discussion, Jun 23, 3:14 PM CDT, 6 hours 29 minutes before
TEXAS/OKLAHOMA PANHANDLES FORECAST DISCUSSION NATIONAL WEATHER SERVICE AMARILLO TX 314 PM CDT FRI JUN 23 2000 SATL/RADAR DEPICTS WEAK CONVERGENCE AXIS FM BEAVER-BGD-AMA WITH HIGHEST CAPE VALUES E OF THERE. CONVECTION BECOMING BETTER ORGANIZED ATTM TO S OF FA ON EDGE OF MOIST PLUME ADVECTING N FM TROPICS. TRADITIONAL DEVELOPMENT ALSO OCCURRING ACROSS NE NM ALONG OUTFLOW BOUNDARIES FM PREVIOUS CONVECTION. DECIDED TO INCREASE POPS FIRST PERIOD NRN ZNS WITH PROSPECTS OF LARGE CONVECTIVE CLUSTER MOVING E ACROSS THAT REGION WITH LESSER POPS THOUGH AT LEAST SCT ACROSS SRN ZNS. PROFILERS INDICATING SPEED MAX MOVING THROUGH CENTRAL NM MAY AID DEVELOPMENT N (SEE LATEST SWOMCD). AM CONCERNED MODELS NOT HANDLING MID/UPPER LEVEL MOISTURE ADVECTION ALL THAT WELL. WITH PROSPECTS OF MOISTURE PLUME BOWING N WITH TIME... CONTINUED TREND OF HIGHER THAN MOS POPS ESP NIGHTTIME. WILL PLACE HIGHEST POPS NRN ZNS THROUGH MON AS MODELS INDICATE WIND SHIFT ENTERING NRN ZNS ON SAT WITH COOLER AIR SETTLING INTO FA ON SUN. SHRTWV TROUGH OVER AZ ALSO FCST TO SHEAR EWD ON SAT GIVING SOME UPPER SUPPORT. AS TEMPS FCST TO WARM ALOFT...PRECIP MAY TAKE LONGER TO DEVELOP EXCEPT IN ERN ZNS WHERE SFC TROUGH WILL HELP REACH CONVECTIVE TEMPS. IN EXTENDED... UPSLOPE FLOW CONTINUES ON MON AS SFC HIGH BUILDS S INTO PLAINS. FLATTENED RIDGE ACROSS CNTRL TX WL FCST TO BUILD W WITH TIME THOUGH IN NO BIG HURRY. SMALL DISTURBANCES IN FLOW AROUND HIGH COUPLED WITH ABUNDANT MID/HIGH LEVEL MOISTURE ARGUES FOR CONTINUED CHC OF LATE AFTN/NIGHTTIME CONVECTION UNTIL PATTERN CHANGES. .AMA... TX...NONE. OK...NONE. COBB
The office that day
Everything else NWS Amarillo, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 23, 9:15 PM CDT | Severe Thunderstorm Warning | AMA | Hansford | 30 min |
| Jun 23, 9:48 PM CDT | Severe Thunderstorm Warning | AMA | Ochiltree | 57 min |
| Jun 23, 11:24 PM CDT | Severe Thunderstorm Warning | AMA | Hansford | 66 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.