Alert archive / Texas / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 174, NWS Amarillo, TX
NWS Amarillo, TX issued this severe thunderstorm warning at Sep 3, 2001, 5:26 PM CDT for Potter County, Texas. It was in force for 64 min. No storm report in the archive falls 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.
The facts
- Issued
- Sep 3, 2001, 5:26 PM CDT (22:26 UTC)
- Expired
- Sep 3, 2001, 6:30 PM CDT
- In force
- 64 min
- Issued by
- NWS Amarillo, TX
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Potter County, TX
The nearest sounding before it
Amarillo Airport, TX (KAMA), launched 12:00Z, 10.4 hours before the alert went out and 36 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
- 641 J/kg
- Mixed-layer CIN
- -261 J/kg
- Mixed-layer LCL
- 1483 m above ground
- 0-6 km bulk shear
- 10 kt
- 0-1 km storm-relative helicity
- 4 m²/s²
- 0-3 km storm-relative helicity
- 93 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.6
The text
As transmitted, in the capitals the NWS used until 2016.
129 WUUS54 KAMA 032227 SVRAMA TXC375-032330- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE AMARILLO TX 526 PM CDT MON SEP 3 2001 THE NATIONAL WEATHER SERVICE HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... WESTERN POTTER COUNTY IN TEXAS * UNTIL 630 PM CDT * AT 526 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM OVER WEST CENTRAL POTTER COUNTY...OR ABOUT 19 MILES NORTHWEST OF AMARILLO...MOVING SOUTHWEST AT 15 MPH. LARGE HAIL...DAMAGING WINDS...AND TORRENTIAL RAINS ARE EXPECTED WITH THIS STORM. TAKE COVER IN A SUBSTANTIAL SHELTER. LAT...LON 3562 10183 3561 10213 3520 10217 3519 10197
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 Sep 3, 2:53 PM CDT, 2 hours 33 minutes earlier.
Area forecast discussion, Sep 3, 2:53 PM CDT, 2 hours 33 minutes before
TEXAS/OKLAHOMA PANHANDLES FORECAST DISCUSSION NATIONAL WEATHER SERVICE AMARILLO TX 253 PM CDT MON SEP 3 2001 PRIMARY FEATURE THIS EVENING WILL BE EVOLUTION OF VORT MAX CURRENTLY CHURNING SOUTHWESTWARD OVER NORTHWEST OKLAHOMA. IN THE LOW LEVELS... AMPLE MOISTURE AND MODERATE INSTABILITY CONTINUES PRIMARILY OVER THE CENTRAL AND EASTERN PANHANDLES WITH SURFACE BASED CAPE VALUES IN THE 1000-1500 J/KG RANGE. MAIN INSTABILITY AXIS IS EAST OF A LINE FROM EASTERN TEXAS COUNTY TO BORGER TO PALO DURO CANYON WITH LI/S AS LOW AS MINUS 7 OVER COLLINGSWORTH COUNTY. THUNDERSTORMS CURRENTLY DEVELOPING PER VISIBLE SATELLITE IMAGERY OVER NORTHEAST ZONES. EXPECT STORMS TO DEVELOP SOUTH/SOUTHWEST OVER CENTRAL AND POSSIBLY WESTERN COUNTIES BEFORE VORT MAX MOVES SOUTH OF THE PANHANDLES TUESDAY. RAIN CHANCES SHOULD BE CONSIDERABLY LESS ON TUESDAY BUT NOT ALTOGETHER ZERO. WILL KEEP SLIGHT POPS GOING MAINLY DUE TO PROXIMITY OF UPPER LOW SOUTH OF THE PANHANDLES. BY WEDNESDAY UPPER HIGH OVER CENTRAL PLAINS SHOULD BECOME OUR PRIMARY WEATHER FEATURE. WILL KEEP FORECAST DRY BASED ON 12Z AVN AND EXPECTED SUBSIDENCE ASSOCIATED WITH UPPER HIGH. MID LEVEL RIDGE IS PROGED TO BUILD LATE IN THE WEEK OVER SOUTHERN ROCKIES PER MEDIUM RANGE MODELS. PRIMARY CHALLENGE WILL BE TIMING SHORT WAVE ENERGY. MID LEVEL PATTERN MAY FAVOR MOUNTAIN CONVECTION PUSHING OVER THE PLAINS WITH TWO STRONG WEATHER SYSTEMS OVER THE EASTERN PACIFIC. AMA BU 59/85 60/90 61 4-2 DHT BU 58/84 58/86 57 3-2 .AMA... TX...NONE. OK...NONE. SLATTERY
The office that day
Everything else NWS Amarillo, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 2, 7:29 PM CDT | Severe Thunderstorm Warning | AMA | Carson | 46 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.