Alert archive / Texas / Severe Thunderstorm Warnings in 2000
Severe Thunderstorm Warning 41, NWS Amarillo, TX
NWS Amarillo, TX issued this severe thunderstorm warning at Apr 24, 2000, 9:49 PM CDT for Hemphill County, Roberts County, Texas. It was in force for 56 min. 2 reports 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
- Apr 24, 2000, 9:49 PM CDT (02:49 UTC)
- Expired
- Apr 24, 2000, 10:45 PM CDT
- In force
- 56 min
- Issued by
- NWS Amarillo, TX
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
Counties Hemphill County, TX, Roberts County, TX
The radar
The Amarillo radar (KAMA), 130 km from the middle of the area, began a volume at 02:48 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 |
|---|---|---|---|
| Apr 24, 9:50 PM CDT | Hail 1.25 | Mendota, TX | |
| Apr 24, 9:50 PM CDT | Hail 0.75 | Miami, 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 |
|---|---|---|---|
| Apr 24, 5:00 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Amarillo Airport, TX (KAMA), launched 00:00Z, 2.8 hours before the alert went out and 130 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
- 251 J/kg
- Mixed-layer CIN
- -62 J/kg
- Mixed-layer LCL
- 2253 m above ground
- 0-6 km bulk shear
- 50 kt
- 0-1 km storm-relative helicity
- 34 m²/s²
- 0-3 km storm-relative helicity
- 115 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.2
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS54 KAMA 250250 SVRAMA TXC211-393-250345- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE AMARILLO TX 949 PM CDT MON APR 24 2000 THE NATIONAL WEATHER SERVICE IN AMARILLO HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... HEMPHILL COUNTY IN THE TEXAS PANHANDLE EASTERN ROBERTS COUNTY IN THE TEXAS PANHANDLE * UNTIL 1045 PM CDT * AT 949 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 11 MILES WEST OF CANADIAN...MOVING SOUTHEAST AT 40 MPH. * SOME LOCATIONS AFFECTED BY THE STORM INCLUDE... CANADIAN...MIAMI...CODMAN...GLAZIER...LAKE MARVIN AND LORA LARGE HAIL...DAMAGING WINDS...AND TORRENTIAL RAINS AoRE EXPECTED WITH THIS STORM. TAKE COVER IN A SUBSTANTIAL SHELTER. LAT...LON 3605 10085 3564 10086 3564 10000 3605 10001
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 Apr 24, 3:15 PM CDT, 6 hours 34 minutes earlier.
Area forecast discussion, Apr 24, 3:15 PM CDT, 6 hours 34 minutes before
TEXAS/OKLAHOMA PANHANDLES FORECAST DISCUSSION NATIONAL WEATHER SERVICE AMARILLO TX 315 PM CDT MON APR 24 2000 GOES SOUNDER DATA CONT TO INDC AXIS OF INSTBY OVR NERN NM...WRN KS... AND NWRN TX PNHDL/WRN OK PNHDL. VSBL SATELLITE INDCG CU DVLPG OVR SAME AREA. WL CONT WITH IDEA OF ERYR UPDT...CALLING FOR SCT TRW OVR NWRN...N-CNTRL...AND WRN ZNS THIS EVE. WL KEEP HIST AREAL COVERAGE NUMBERS OVR NWRN ZNS. WL ALSO MENTION PSBLY SVR OVR NWR ZNS IN AGREEMENT WITH NEW AC. STEEP LAPSE RATES ACMPYG PAC CDFNT... WITH GOOD SHEAR PROFILE ANTICIPATED. H5 AND H7 VOT MAXIMA WL TRAVERSE MAINLY NRN ZNS. WL LOWER 1ST PD POPS OVR SERN ZNS TO SLGT CHC HOWEVER...DUE TO MORE STABLE AMS THIS AREA. CDFNT WL MOV INTO NWRN ZNS ARND MIDNIGHT...AND WL BE MOVG OUT OF SERN ZNS BFR SR. NELY-NLY SFC WNDS BHND CDNFT AOB 20 MPH EXPCD FOR TUE. THUS...SOME CAA EXPCD...SO WL LOWER MAX TEMPS FOR TUE. AMS SHOULD BE TOO DRY TUE FOR PCPN...SO WL REMOVE POPS FM ALL BUT SERN ZNS...WHERE WL LEAVE 20 PCT IN CASE LIFT AND CNVGNC WITH H8 CDFNT RESULTS IN MRNG PCPN. NO SGFNT CLDS OR WX EXPCD TUE NGT THRU FRI AS H5 RDG DOMINATES S-CNTRL CONUS. DVLPG H5 TROF DEEPENS OVR WRN CONUS...WITH ASSOCD CDF~NT EXPCD IN PNHDLS ON SAT...SO CHC TRW ALL ZNS ON DAY 5. 03 .AMA... TX...NONE. OK...NONE. COCKRELL
The office that day
Everything else NWS Amarillo, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 24, 8:25 PM CDT | Severe Thunderstorm Warning | AMA | Hansford, Ochiltree | 65 min |
| Apr 24, 9:32 PM CDT | Severe Thunderstorm Warning | AMA | Hansford | 58 min |
| Apr 24, 10:17 PM CDT | Severe Thunderstorm Warning | AMA | Wheeler | 58 min |
| Apr 24, 10:31 PM CDT | Severe Thunderstorm Warning | AMA | Hutchinson | 59 min |
| Apr 24, 10:54 PM CDT | Severe Thunderstorm Warning | AMA | Gray, Roberts | 66 min |
| Apr 24, 11:29 PM CDT | Severe Thunderstorm Warning | AMA | Wheeler | 61 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.