Alert archive / Texas / Flash Flood Warnings in 1991
Flash Flood Warning 2, NWS Amarillo, TX
NWS Amarillo, TX issued this flash flood warning at May 11, 1991, 10:19 PM CDT for Briscoe County, Texas. It was in force for 116 min.
The area
The counties it named.
The facts
- Issued
- May 11, 1991, 10:19 PM CDT (03:19 UTC)
- Expired
- May 12, 1991, 12:15 AM CDT
- In force
- 116 min
- Issued by
- NWS Amarillo, TX
- Area
- Whole counties
County Briscoe County, TX
The nearest sounding before it
Amarillo Airport, TX (KAMA), launched 00:00Z, 3.3 hours before the alert went out and 90 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
- 2372 J/kg
- Mixed-layer CIN
- -21 J/kg
- Mixed-layer LCL
- 1498 m above ground
- 0-6 km bulk shear
- 18 kt
- 0-1 km storm-relative helicity
- 65 m²/s²
- 0-3 km storm-relative helicity
- 155 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 flash flood 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 11, 4:39 PM CDT, 5 hours 40 minutes before
TXZ001>009-NMZ005-009-013-OKZ001>003-122245- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE AMARILLO TX 440 PM CDT SAT MAY 11 1991 ...TORNADO WATCH #315 IS IN EFFECT UNTIL 11PM CDT SATURDAY FOR THE OKLAHOMA PANHANDLE..AND THE WESTERN THREE FOURTHS OF THE TEXAS PANHANDLE... AT 425 PM CDT...RADAR INDICATED A SMALL CLUSTER OF STRONG THUNDERSTORMS FROM WESTERN HARTLEY COUNTY NORTH INTO WESTERN DALLAM COUNTY. THE STRONGEST STORM WAS DETECTED BETWEEN TEXLINE AND DALHART. THESE THUNDERSTORMS MAY PRODUCE SMALL HAIL AND VERY HEAVY RAINS AS THEY MOVE NORTH AT 25 MILES AN HOUR. REMEMBER A TORNADO WATCH IS IN EFFECT FOR MOST OF THE PANHANDLES UNTIL 11 PM CDT SATURDAY. R_EMAIN ALERT FOR THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE WARNINGS.
Special weather statement, May 11, 5:41 PM CDT, 4 hours 38 minutes before
TXZ001>009-NMZ005-009-013-OKZ001>003-112345- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE AMARILLO TX 538 PM CDT SAT MAY 11 1991 ...TORNADO WATCH #315 IS IN EFFECT UNTIL 11PM CDT SATURDAY FOR THE OKLAHOMA PANHANDLE..AND THE WESTERN THREE FOURTHS OF THE TEXAS PANHANDLE... AT 525 PM CDT...RADAR INDICATED A LINE OF SCATTERED THUNDERSTORMS FROM THE WEST PART OF DALLAM COUNTY NORTH ACROSS EXTREME WESTERN CIMARRON COUNTY INTO THE SOUTHEAST TIP OF COLORADO. THE STRONGEST STORMS WITH VERY HEAVY RAINS WERE SHOWN 10 MILES EAST AND SOUTHEAST OF TEXLINE IN DALLAM COUNTY. THESE STORMS WILL BE MOVING INTO CIMARRON COUNTY SOUTH OF BOISE CITY DURING THE NEXT HOUR...AS THEY MOVE NORTHEAST AT 15 MILES AN HOUR. AN ISOLATED THUNDERSTORM HAD DEVELOPED DURING THE PAST HOUR IN THE SOUTH PLAINS 15 MILES NORTHWEST OF LUBBOCK. REMEMBER A TORNADO WATCH IS IN EFFECT UNTIL 11PM CDT FOR MOST OF THE AREA. REMAIN ALERT FOR THREATENING WEATHER CONDITIONS AND STAY TUNED FOR LATER STATEMENTS AND POSSIBLE WARNINGS.
Special weather statement, May 11, 6:44 PM CDT, 3 hours 35 minutes before
TXZ001>009-NMZ005-009-013-OKZ001>003-120045- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE AMARILLO TX 640 PM CDT SAT MAY 11 1991 ...TORNADO WATCH #315 IS IN EFFECT UNTIL 11PM CDT SATURDAY FOR THE OKLAHOMA PANHANDLE..AND THE WESTERN THREE FOURTHS OF THE TEXAS PANHANDLE... AT 625 PM CDT...RADAR INDICATED SCATTERED STRONG THUNDERSTORMS INCREASING OVER THE SOUTH PLAINS FROM JUST NORTH OF ABERNATHY NORTH TO AROUND PLAINVIEW AND INTO WESTERN SWISHER COUNTY TO NEAR HAPPY. THESE STORMS ARE CAPABLE OF PRODUCING LARGE HAIL AND VERY HEAVY RAINS AS THEY MOVE NORTH AT 15 MILES AN HOUR. THE STRONGEST STORMS WERE INDICATED NORTHWEST OF PLAINVIEW AND WEST OF KRESS...AND WILL BE MOVING INTO SOUTHWESTERN SWISHER COUNTY DURING THE NEXT HALF HOUR. ANOTHER ISOLATED STRONG THUNDERSTORM WAS SHOWN IN THE NORTHWEST PANHANDLES BETWEEN TEXLINE AND BOISE CITY. THIS STORM MAY PRODUCE SMALL HAIL AND VERY HEAVY RAINS AS IT MOVES NORTH AT 15 MILES AN HOUR INTO CIMARRON COUNTY DURING THE NEXT HALF HOUR. REMEMBER A TORNADO WATCH IS IN EFFECT FOR MOST OF THE AREA UNTIL 11PM CDT. TORNADOES..LARGE HAIL AND DAMAGING THUNDERSTORM WINDS ARE POSSIBLE IN THE WATCH AREA. REMAIN ALERT FOR THREATENING WEATHER CONDITIONS...AND BE PREPARED TO SEEK IMMEDIATE SHELTER. ASK YOUR LOCAL LAW ENFORECEMENT AGENCY TO FOREWARD YOUR SEVERE WEATHER REPORTS TO THE NATIONAL WEATHER SERVICE.
Local storm report, May 11, 7:05 PM CDT, 3 hours 14 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE AMARILLO, TX
705 PM CDT SAT MAY 11 1991
FOR AFTERNOON AND EVENING OF MAY 11 1991
700 PM CDT...GOLFBALL SIZE HAIL IN NAZARETH (ERN CASTRO CNTY)...REPORTED
BY DPS
701 PM CDT...GOLFBALL SIZE HAIL IN HART (SOUTHEAST CASTRO CNTY)...REPORTED
BY CASTRO CNTY SO
SCThe office that day
Everything else NWS Amarillo, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 11, 7:04 PM CDT | Severe Thunderstorm Warning | AMA | Castro | 56 min |
| May 11, 7:24 PM CDT | Tornado Warning | AMA | Swisher | 36 min |
| May 11, 7:44 PM CDT | Tornado Warning | AMA | Randall | 31 min |
| May 11, 7:47 PM CDT | Tornado Warning | AMA | Castro | 28 min |
| May 11, 8:06 PM CDT | Severe Thunderstorm Warning | AMA | Potter, Randall | 44 min |
| May 11, 8:15 PM CDT | Severe Thunderstorm Warning | AMA | Castro, Swisher | 60 min |
| May 11, 8:23 PM CDT | Tornado Warning | AMA | Swisher | 37 min |
| May 11, 9:06 PM CDT | Tornado Warning | AMA | Swisher | 39 min |
| May 11, 9:13 PM CDT | Flash Flood Warning | AMA | Castro, Swisher | 3 hr |
| May 11, 9:17 PM CDT | Severe Thunderstorm Warning | AMA | Castro, Swisher | 58 min |
| May 11, 7:20 PM CDT | Severe Thunderstorm Warning | AMA | Cimarron | 55 min |
Nearby
Flash Flood Warnings in Texas, 1991Every flash flood 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; the sounding from the Mesonet's radiosonde archive.