Alert archive / Texas / Severe Thunderstorm Warnings in 1991
Severe Thunderstorm Warning 13, NWS Amarillo, TX
NWS Amarillo, TX issued this severe thunderstorm warning at May 10, 1991, 6:50 PM CDT for Dallam County, Hartley County, Oldham County, Texas. It was in force for 55 min. 3 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- May 10, 1991, 6:50 PM CDT (23:50 UTC)
- Expired
- May 10, 1991, 7:45 PM CDT
- In force
- 55 min
- Issued by
- NWS Amarillo, TX
- Area
- Whole counties
Counties Dallam County, TX, Hartley County, TX, Oldham County, TX
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| May 10, 7:20 PM CDT | Hail 2.25 | Oldham, TX | |
| May 10, 7:33 PM CDT | Hail 1.75 | Hartley, TX | |
| May 10, 7:38 PM CDT | Hail 1.25 | Dallam, 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. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.
The nearest sounding before it
Amarillo Airport, TX (KAMA), launched 12:00Z, 11.8 hours before the alert went out and 106 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
- -488 J/kg
- Mixed-layer LCL
- 1229 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- 32 m²/s²
- 0-3 km storm-relative helicity
- 18 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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.
In the hours before
Special weather statement, May 10, 1:04 PM CDT, 5 hours 46 minutes before
TXZ001>009-NMZ005-009-013-OKZ001>003-110600- TEXAS/OKLAHOMA PANHANDLES THUNDERSTORM OUTLOOK NATIONAL WEATHER SERVICE AMARILLO TX 100 PM CDT FRI MAY 10 1991 THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS THIS AFTERNOON AND EVENING OVER THE WESTERN TWO THIRDS OF THE PANHANDLES. AN ABUNDANCE OF LOW LEVEL MOISTURE REMAINS IN PLACE ACROSS THE REGION THIS AFTERNOON. DEW POINT TEMPERATURES HAVE CLIMBED INTO THE 60S OVER NEARLY ALL OF THE AREA. THE DRY LINE...SEPARATING VERY MOIST AIR FROM VERY DRY AIR...WAS FOUND TODAY INTO EASTERN NEW MEXICO. THE AIRMASS OVER THE PANHANDLES IS MODERATELY UNSTABLE AND ALL THAT IS LACKING IS A TRIGGERING MECHANISM FOR THUNDERSTORMS TO BEGIN TO DEVELOP. AFTERNOON HEATING...ONCE THE CLOUDINESS OVER THE REGION DECREASES... IS EXPECTED TO HELP TRIGGER THUNDERSTORM DEVELOPMENT. A MORE FAVORABLE AREA FOR DEVELOPMENT WILL LIKELY BE IN EASTERN NEW MEXICO NEAR THE DRY LINE. A WEAK UPPER LEVEL DISTURBANCE MAY MOVE ACROSS THE REGION TONIGHT...WHICH WOULD SIGNIFICANTLY INCREASE THE POSSIBILITY OF THUNDERSTORMS. SPOTTER GROUPS AND EMERGENCY MANAGEMENT OFFICIALS OVER THE WESTERN TWO THIRDS OF THE PANHANDLES SHOULD REMAIN ALERT AND BE READY FOR ACTIVATION TODAY IF NECESSARY.
Special weather statement, May 10, 4:09 PM CDT, 2 hours 41 minutes before
TXZ001>009-NMZ005-009-013-OKZ001>003-110300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AMARILLO TX 415 PM CDT FRI MAY 10 1991 A TORNADO WATCH IS IN EFFECT UNTIL 10 PM CDT FRIDAY EVENING FOR EXTREME EASTERN NEW MEXICO...THE WESTERN TWO THIRDS OF THE OKLAHOMA PANHANDLE...AND THE WESTERN TWO THIRDS OF THE TEXAS PANHANDLE. THE TORNADO WATCH INCLUDES CIMARRON AND TEXAS COUNTIES OF THE OKLAHOMA PANHANDLE...AND THE FOLLOWING COUNTIES OF THE TEXAS PANHANDLE...DALLAM..HARTLEY..OLDHAM..DEAF SMITH..SHERMAN..MOORE.. POTTER..RANDALL..HANSFORD..HUTCHINSON..CARSON..AND ARMSTRONG. TORNADOES...LARGE HAIL...DANGEROUS LIGHTNING AND DAMAGING THUNDERSTORM WINDS ARE POSSIBLE IN THESE AREAS. REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR TORNADOES AND SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA. PERSONS IN THE WATCH AREA SHOULD BE ON THE LOOKOUT FOR THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE WARNINGS.
Special weather statement, May 10, 4:47 PM CDT, 2 hours 3 minutes before
TXZ001>009-NMZ005-009-013-OKZ001>003-110300- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE AMARILLO TX 445 PM CDT FRI MAY 10 1991 A TORNADO WATCH IS IN EFFECT UNTIL 10 PM CDT FRIDAY EVENING FOR EXTREME EASTERN NEW MEXICO...THE WESTERN TWO THIRDS OF THE OKLAHOMA PANHANDLE...AND THE WESTERN TWO THIRDS OF THE TEXAS PANHANDLE. AT 435 PM CDT SCATTERED SHOWERS AND A FEW THUNDERSTORMS HAD DEVELOPED ACROSS THE EXTREME NORTHWEST CORNER OF THE TEXAS PANHANDLE AND THE NORTHEAST CORNER OF NEW MEXICO. THE HEAVIEST PRECIPITATION WAS JUST SOUTHWEST OF MIDDLE WATER IN HARTLEY COUNTY. ELSEWHERE SCATTERED SHOWERS AND A FEW THUNDERSTORMS WERE INDICATED ACREOSS THE SOUTHEAST TEXAS SOUTH PLAINS NEAR JAYTON. NO MOVEMENT NOTED AT THIS TIME.
Special weather statement, May 10, 5:20 PM CDT, 1 hour 30 minutes before
TXZ001>009-NMZ005-009-013-OKZ001>003-102300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AMARILLO TX 520 PM CDT FRI MAY 10 1991 ...TORNADO WATCH IS IN EFFECT FOR THE WESTERN TWO-THIRDS OF THE TEXAS AND OKLAHOMA PANHANDLE UNTIL 10 PM CDT... AT 515 PM CDT...RADAR INDICATED A DEVELOPING LINE OF THUNDERSTORMS IN THE WESTERN TEXAS AND OKLAHOMA PANHANDLES. THE STRONGEST STORMS IN THE LINE WERE LOCATED NORTH OF 8 MILES NORTH OF ADRIAN IN OLDHAM COUNTY AND 10 MILES SOUTH OF DALHART IN HARTLEY COUNTY. THE LINE WAS MOVING NORTH AT 30 MPH. BRIEF HEAVY RAIN...HAIL AND STRONG WIND ARE POSSIBLE WITH THESE THUNDERSTORMS AS THEY GAIN STRENGTH AND MOVE ACROSS THE WESTERN TEXAS AND OKLAHOMA PANZHANDLES. A TORNADO WATCH IS IN EFFECT FOR THE WESTERN TWO-THIRDS OF THE PANHANDLES UNTIL 10 PM CDT. PLEASE REMAIN ALERT AND STAY TUNED TO THIS STATION FOR LATER STATEMENTS AND POSSIBLE WARNINGS. PLISCHKE
Special weather statement, May 10, 5:22 PM CDT, 1 hour 28 minutes before
TXZ001>009-NMZ005-009-013-OKZ001>003-102300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AMARILLO TX 520 PM CDT FRI MAY 10 1991 ...TORNADO WATCH IS IN EFFECT FOR THE WESTERN TWO-THIRDS OF THE TEXAS AND OKLAHOMA PANHANDLES UNTIL 10 PM CDT... AT 515 PM CDT...RADAR INDICATED A DEVELOPING LINE OF THUNDERSTORMS IN THE WESTERN TEXAS AND OKLAHOMA PANHANDLES. THE STRONGEST STORMS IN THE LINE WERE LOCATED 8 MILES NORTH OF ADRIAN IN OLDHAM COUNTY AND 10 MILES SOUTH OF DALHART IN HARTLEY COUNTY. THE LINE WAS MOVING NORTH AT 30 MPH. BRIEF HEAVY RAIN...HAIL AND STRONG WIND ARE POSSIBLE WITH THESE THUNDERSTORMS AS THEY GAIN STRENGTH AND MOVE ACROSS THE WESTERN TEXAS AND OKLAHOMA PANHANDLES. A TORNADO WATCH IS IN EFFECT FOR THE WESTERN TWO-THIRDS OF THE PANHANDLES UNTIL 10 PM CDT. PLEASE REMAIN ALERT AND STAY TUNED TO THIS STATION FOR LATER STATEMENTS AND POSSIBLE WARNINGS. PLISCHKE
The office that day
Everything else NWS Amarillo, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 10, 5:41 PM CDT | Severe Thunderstorm Warning | AMA | Dallam, Hartley | 64 min |
| May 10, 5:49 PM CDT | Severe Thunderstorm Warning | AMA | Hartley, Oldham | 56 min |
| May 10, 6:25 PM CDT | Severe Thunderstorm Warning | AMA | Castro, Parmer | 65 min |
| May 10, 6:39 PM CDT | Tornado Warning | AMA | Castro, Parmer | 36 min |
| May 10, 6:05 PM CDT | Severe Thunderstorm Warning | AMA | Cimarron | 55 min |
Nearby
Severe Thunderstorm Warnings in Texas, 1991Every severe thunderstorm warning in 1991
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.