Alert archive / Texas / Severe Thunderstorm Warnings in 2002
Severe Thunderstorm Warning 201, NWS Amarillo, TX
NWS Amarillo, TX issued this severe thunderstorm warning at Sep 13, 2002, 5:24 PM CDT for Sherman County, Texas. It was in force for 66 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Sep 13, 2002, 5:24 PM CDT (22:24 UTC)
- Expired
- Sep 13, 2002, 6:30 PM CDT
- In force
- 66 min
- Issued by
- NWS Amarillo, TX
- Area
- Counties, with a storm outline in the text
County Sherman County, TX
The radar
The Amarillo radar (KAMA), 125 km from the middle of the area, began a volume at 22:27 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.
Did it verify
Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.
Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.
The nearest sounding before it
Amarillo Airport, TX (KAMA), launched 12:00Z, 10.4 hours before the alert went out and 126 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1768 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 35 m²/s²
- 0-3 km storm-relative helicity
- -29 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
260
WUUS54 KAMA 132224
SVRAMA
TXC421-132330-
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE AMARILLO TX
522 PM CDT FRI SEP 13 2002
THE NATIONAL WEATHER SERVICE IN AMARILLO HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
SHERMAN COUNTY IN THE TEXAS PANHANDLE
THIS INCLUDES THE CITY OF STRATFORD
* UNTIL 630 PM CDT
* AT 522 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM 13 MILES NORTHWEST OF STRATFORD...MOVING EAST
AT 20 MPH.
IF SEVERE WEATHER APPROACHES YOUR AREA...GO INSIDE A STURDY SHELTER
AWAY FROM CREEK BEDS AND OTHER FLOOD-PRONE AREAS. THIS STORM CAN
PRODUCE QUARTER TO GOLF BALL SIZE HAIL...DAMAGING WINDS IN EXCESS OF
55 MPH...DEADLY LIGHTNING...AND VERY HEAVY RAIN.
REPORT SEVERE WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY. THEY
WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST
OFFICE IN AMARILLO.
LAT...LON 3648 10214 3631 10215 3619 10191 3612 10165
3647 10168What 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 13, 3:25 PM CDT, 1 hour 59 minutes earlier.
Area forecast discussion, Sep 13, 3:25 PM CDT, 1 hour 59 minutes before
AREA FORECAST DISCUSSION...CORRECTED NATIONAL WEATHER SERVICE AMARILLO TX 235 PM CDT FRI 13 SEP 2002 LATEST ANALYSIS SHOWS SFC TROF ORGANIZING ALONG TX/NM STATE LINE IN ADVANCE OF A COLD FRONT PROGGED TO AFFECT THE AREA DURG NEXT 24 TO 36 HRS. TSTMS ALREADY DVLPG OVR HIGHER TERRAIN OF NRN NM AND SERN CO AS POTENT SHORTWAVE TRAVERSING SRN ROCKIES INTERACTS WITH MOISTURE... HEATING...AND ATTENDANT INSTABILITY. ISOLATED STORMS COULD BECOME SEVERE AND WILL RETAIN SUCH WORDING IN ZONES FOR TNGT. WILL ALSO HOLD ON TO AREAL QUALIFIERS BASED ON RADAR TRENDS. SOME SORT OF WIND SHIFT WILL OCCUR THIS EVENING AND TNGT AHEAD OF MAIN PUSH OF COOL AIR VIA A SURFACE HIGH WHICH IS SLATED TO BUILD INTO THE AREA LATE SAT AND SAT NIGHT. MAIN UPPER TROF AXIS SHOULD BE E OF FCST AREA BY LATE SATURDAY...AND WILL LEAVE POPS OUT FOR SAT NIGHT AT THIS TIME. SHORT RANGE MODELS ARE IN REASONABLE AGREEMENT THRU 72 HRS WITH SOME DIFFERENCES IN DETAILS AS IS TO BE EXPECTED WITH TIMING OF FRONTS AND COOL AIR SURGES. IT APPEARS WX DURG LATE WEEKEND INTO NEXT FRIDAY WILL BE FAIRLY QUIET. BUT THIS IS SAID WITH CAUTION. LATEST MEDIUM RANGE MODELS ARE NOT IN VERY GOOD AGREEMENT WITH UPPER AIR PATTERN DURG MIDDLE AND LATTER PART OF NEXT WEEK SO CONFIDENCE IS LOW. REFER TO PMDEPD FOR MORE DETAILS. FOR NOW...WILL MAINTAIN A DRY FCST WITH TEMPS NEAR CLIMATOLOGY...WHICH IS WHAT PREVIOUS PCKG HAD. PRELIM VALUES FOLLOW. FCSTID = 02 AMARILLO 58 76 54 74 / 50 20 00 00 BEAVER 60 76 53 74 / 60 20 00 00 BOISE CITY 54 73 50 72 / 50 20 00 00 BORGER 59 75 54 74 / 60 20 00 00 BOYS RANCH 57 75 53 75 / 50 20 00 00 CANYON 58 75 54 74 / 50 20 00 00 CLARENDON 64 77 57 76 / 50 20 00 00 DALHART 56 74 52 73 / 50 20 00 00 GUYMON 59 75 53 73 / 60 20 00 00 HEREFORD 57 75 54 74 / 50 20 00 00 LIPSCOMB 60 76 54 74 / 60 20 00 00 SHAMROCK 64 78 59 76 / 50 20 00 00 WELLINGTON 64 78 59 76 / 50 20 00 00 .AMA... TX...NONE. OK...NONE. ANDRADE
In the hours before
Special weather statement, Sep 13, 1:00 PM CDT, 4 hours 24 minutes before
OKZ001>003-TXZ001>020-132200- TEXAS/OKLAHOMA PANHANDLES HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE AMARILLO TX 100 PM CDT FRI SEP 13 2002 THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS OVER THE ENTIRE TEXAS AND OKLAHOMA PANHANDLES LATER THIS AFTERNOON AND TONIGHT. THIS AFTERNOON...A SURFACE LOW PRESSURE CENTER IS LOCATED OVER SOUTHWEST KANSAS BETWEEN GARDEN CITY AND LIBERAL. A PACIFIC COOL FRONT EXTENDS SOUTH OF THE LOW TO NEAR CLAUDE TEXAS. A MUCH STRONGER COOL FRONT IS EXPECTED TO MOVE ACROSS THE PANHANDLES ON SATURDAY. SCATTERED SHOWERS AND THUNDERSTORMS WILL DEVELOP IN THE MOIST AND UNSTABLE CONDITIONS OVER THE PANHANDLES THIS AFTERNOON AND TONIGHT. THE NORTHERN AND EASTERN PANHANDLES APPEAR TO HAVE THE BEST CHANCE FOR STORMS. STORMS INITIALLY WILL MOVE TOWARDS THE EAST BUT LATER TONIGHT STORMS WILL MOVE IN A SOUTHEASTLY DIRECTION. THE MAIN THREAT FROM THESE STORMS WILL BE LARGE HAIL AND DAMAGING DOWNBURST WINDS. LOCALLY HEAVY RAINFALL AND DANGEROUS LIGHTNING IS ALSO EXPECTED. SPOTTER GROUPS AND EMERGENCY MANAGEMENT PERSONNEL SHOULD REMAIN ALERT AND BE READY FOR POSSIBLE ACTIVATION LATER THIS AFTERNOON AND TONIGHT. SLATTERY
The office that day
Everything else NWS Amarillo, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 13, 4:42 PM CDT | Severe Thunderstorm Warning | AMA | Dallam | 48 min |
Nearby
Severe Thunderstorm Warnings in Texas, 2002Every severe thunderstorm warning in 2002
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.