Alert archive / Texas / Severe Thunderstorm Warnings in 1993
Severe Thunderstorm Warning 21, NWS Amarillo, TX
NWS Amarillo, TX issued this severe thunderstorm warning at Apr 30, 1993, 4:49 PM CDT for Gray County, Texas. It was in force for 56 min.
The area
The counties it named.
The facts
- Issued
- Apr 30, 1993, 4:49 PM CDT (21:49 UTC)
- Expired
- Apr 30, 1993, 5:45 PM CDT
- In force
- 56 min
- Issued by
- NWS Amarillo, TX
- Area
- Whole counties
County Gray County, TX
The nearest sounding before it
Amarillo Airport, TX (KAMA), launched 12:00Z, 9.8 hours before the alert went out and 83 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
- 30 J/kg
- Mixed-layer CIN
- -294 J/kg
- Mixed-layer LCL
- 927 m above ground
- 0-6 km bulk shear
- 11 kt
- 0-1 km storm-relative helicity
- 193 m²/s²
- 0-3 km storm-relative helicity
- 285 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KAMA 302149 SVRAMA TXC179-302245- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE AMARILLO TX 449 PM CDT FRI APR 30 1993 THE NATIONAL WEATHER SERVICE IN AMARILLO HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 545 PM CDT FOR THE PEOPLE IN THE FOLLOWING LOCATION... IN THE TEXAS PANHANDLE ...NORTHERN GRAY COUNTY DOPPLER RADARR INDICATE A STRONG THUNDERSTORM MOVING INTO THE NORTHER HALF OF GRAY COUNTY. THIS STORM WAS MOVING TO THE NORTHEAST AT 15 MPH AND WILL MOVE INTO THE PAMPA AREA BY 5PM. A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA. REMEMBER... SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES WITH LITTLE ORp NO ADVANCE WARNING. MOVE INDOORS AND AWAY FROM AREAS WHERE LOOSE ITEMS COULD BECOME FLYING DEBRIS. REMAIN CALM BUT BE ALERT TO RAPIDLY CHANGING WEATHER CONDITIONS.
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.
In the hours before
Special weather statement, Apr 30, 12:59 PM CDT, 3 hours 50 minutes before
TXZ001>009-NMZ005-009-013-OKZ001>003-011200- TEXAS/OKLAHOMA PANHANDLES THUNDERSTORM OUTLOOK NATIONAL WEATHER SERVICE AMARILLO TX 100 PM CDT FRI APR 30 1993 THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS THIS AFTERNOON AND EVENING ACROSS ALL OF THE TEXAS AND OKLAHOMA PANHANDLES. SURFACE LOW PRESSURE WAS IN FAR WESTERN KANSAS EARLY THIS AFTERNOON. THIS SYSTEM WAS PRODUCING BRISK SOUTH TO SOUTHWEST WINDS IN THE PANHANDLES WITH DEWPOINTS IN THE MIDDLE AND UPPER 50S AHEAD OF THE DRYLINE WHICH WAS NEAR DALHART. WITH TEMPERATURES IN THE LOWER 70S AND THE ABUNDANT LOW LEVEL MOISTURE...THE ATMOSPHERE WAS ALREADY MODERATELY UNSTABLE. BY LATE AFTERNOON...A SURFACE TROUGH OF LOW PRESSURE WILL STRETCH FROM NORTHWEST KANSAS INTO NORTHEAST NEW MEXICO. AN UPPER LEVEL WEATHER DISTURBANCE NEAR THE AREA WILL COMBINE WITH DAYTIME HEATING TO INITIATE THUNDERSTORM DEVELOPMENT ALONG AND JUST AHEAD OF THE SURFACE TROUGH DURING THE LATE AFTERNOON HOURS. THE THUNDERSTORMS WILL MOVE MAINLY NORTHEAST AT 15 TO 25 MPH ACROSS THE PANHANDLES. BECAUSE OF MODERATE INSTABILITY AND A FAVORABLE WIND PROFILE IN THE ATMOSPHERE...A FEW OF THE STORMS MAY BECOME SEVERE. THE MAIN THREATS FROM ANY SEVERE THUNDERST ORMS WILL BE LARGE HAIL AND DAMAGING WINDS. SPOTTER GROUPS AND EMERGENCY MANAGEMENT OFFICIALS ACROSS BOTH OF THE PANHANDLES SHOULD BE READY FOR POSSIBLE ACTIVATION THIS AFTERNOON OR EVENING. SAR
The office that day
Everything else NWS Amarillo, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 30, 4:12 PM CDT | Severe Thunderstorm Warning | AMA | Donley | 63 min |
| Apr 30, 4:28 PM CDT | Severe Thunderstorm Warning | AMA | Carson | 62 min |
| Apr 30, 6:03 PM CDT | Severe Thunderstorm Warning | AMA | Lipscomb | 27 min |
Nearby
Severe Thunderstorm Warnings in Texas, 1993Every severe thunderstorm warning in 1993
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.