Alert archive / Texas / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 54, NWS Amarillo, TX
NWS Amarillo, TX issued this severe thunderstorm warning at May 9, 2001, 7:18 PM CDT for Dallam County, Hartley County, Texas. It was in force for 42 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- May 9, 2001, 7:18 PM CDT (00:18 UTC)
- Expired
- May 9, 2001, 8:00 PM CDT
- In force
- 42 min
- Issued by
- NWS Amarillo, TX
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
Counties Dallam County, TX, Hartley County, TX
The radar
The Amarillo radar (KAMA), 122 km from the middle of the area, began a volume at 00:17 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.
The nearest sounding before it
Amarillo Airport, TX (KAMA), launched 00:00Z, 0.3 hours before the alert went out and 123 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
- 1245 J/kg
- Mixed-layer CIN
- -9 J/kg
- Mixed-layer LCL
- 2294 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 4 m²/s²
- 0-3 km storm-relative helicity
- 96 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.0
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
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 May 9, 6:29 PM CDT, 49 minutes earlier.
Area forecast discussion, May 9, 6:29 PM CDT, 49 minutes before
TEXAS/OKLAHOMA PANHANDLES FORECAST DISCUSSION NATIONAL WEATHER SERVICE AMARILLO TX 629 PM CDT WED MAY 9 2001 UPDATED ZNS TO INCREASE POPS TO AREAL COVERAGE TERMS IN NE ZNS. LINE OF STORMS ACROSS OK PNHDL STEADILY MOVING E INTO THAT AREA. LATEST HAND/OBJ ANLYS SHOWS SECONDARY N/S CONVERGENCE LINE ACROSS ERN ZNS WITH HIGHEST SFC BASED INSTABILITY TO THE E IN WRN OK. EXPECT STORMS TO MAINTAIN INTENSITY OR STRENGTHEN AS THEY MOVE E INTO BEAVER CO. SO FAR ONLY GUSTY WINDS AND SMALL HAIL HV BEEN REPORTED. OTHER MORE SCT STORMS ACROSS ERN NM MOVING E INTO WRN ZNS...CURRENT POP COVERAGE IN W LOOKS GOOD. .AMA... TX...NONE. OK...NONE. COBB
In the hours before
Special weather statement, May 9, 3:23 PM CDT, 3 hours 55 minutes before
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</html>The office that day
Everything else NWS Amarillo, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 9, 10:56 PM CDT | Severe Thunderstorm Warning | AMA | Hemphill | 44 min |
Nearby
Severe Thunderstorm Warnings in Texas, 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.