A severe thunderstorm developed during the late morning hours and produced some hail across the extreme southwestern Texas Panhandle. There were no reports of damage or injuries.
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The episode as NWS AMA wrote it up.
A severe thunderstorm developed during the late morning hours and produced some hail across the extreme southwestern Texas Panhandle. There were no reports of damage or injuries.
The local office's own words before the first event, 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 the first event at Nov 21, 6:01 AM CST, 4 hours 45 minutes earlier.
AREA FORECAST DISCUSSION...UPDATED NATIONAL WEATHER SERVICE AMARILLO TX 601 AM CST MON NOV 21 2011 .AVIATION... 12Z TAFS...FLYING CONDITIONS WILL DETERIORATE FROM SOUTH TO NORTH TODAY AHEAD OF AN APPROACHING UPPER-LEVEL LOW PRESSURE SYSTEM. AS LOW-LEVEL MOISTURE CONTINUES TO ADVECT NORTHWARD INTO THE AREA THIS MORNING...LOW CIGS AND FOG WILL FIRST DEVELOP AT KAMA. EXPECTING IFR TO LIFR CIGS AND MVFR VSBYS AT KAMA...ALTHOUGH THERE IS THE POTENTIAL FOR VSBYS TO DROP LOWER THAN THIS. MVFR TO IFR CIGS THEN EXPECTED TO DEVELOP/MOVE INTO KDHT AND KGUY AROUND MIDDAY...WITH FOG POTENTIAL SOMEWHAT LESS AT THESE TWO TERMINALS. AS LIFT INCREASES AHEAD OF THE APPROACHING UPPER-LEVEL LOW...PRECIPITATION IN THE FORM OF -DZ OR -SHRA IS EXPECTED TO DEVELOP AT KAMA MID TO LATE MORNING. THE PRECIPITATION WILL THEN LIKELY TRANSITION TO THUNDERSTORMS AND BECOME HEAVIER THIS AFTERNOON...AND EXPAND NORTHWARD INTO THE KGUY AREA. KDHT WILL BE ON THE EDGE OF BETTER RAIN CHANCES...SO WILL ONLY CARRY VCSH REMARKS ATTM. IFR/LIFR CIGS TO PERSIST AT KAMA THIS AFTERNOON...WITH MVFR/IFR CIGS EXPECTED AT KDHT AND KGUY...ALONG WITH REDUCED VSBYS IN RAIN. THE BULK OF THE PRECIPITATION WILL SLIDE EAST OF THE TERMINALS BY EARLY EVENING...WITH KGUY SEEING THE BEST CHANCE OF ANY LINGERING RAIN DURING THE MID TO LATE EVENING HOURS. LOW CLOUDS WILL SCATTER OUT THIS EVENING /POSSIBLY NOT TILL OVERNIGHT AT KGUY/...HOWEVER SOME FOG WILL BE POSSIBLE THIS EVENING AND EARLY OVERNIGHT UNTIL A COLD FRONT PUSHES THROUGH...SWITCHING WINDS TO THE NORTHWEST AND ADVECTING IN DRIER AIR. KB && .PREV DISCUSSION... /ISSUED 318 AM CST MON NOV 21 2011/ DISCUSSION... SURFACE RIDGE OF HIGH PRESSURE HAS NOSED INTO THE TEXAS AND OKLAHOMA PANHANDLES EARLY THIS MORNING. THIS SURFACE RIDGE WILL GIVE WAY TO AN INTENSIFYING LOW PRESSURE TROUGH IN EASTERN NEW MEXICO TODAY. THIS IS ALREADY SHOWING SIGNS OF HAPPENING AS LOW CLOUDS AND FOG CONTINUE TO WORK THEIR WAY NORTHWARD ACROSS THE SOUTHERN TEXAS PANHANDLE IN A WAA AND MOISTURE ADVECTION PATTERN JUST ABOVE THE SURFACE. MOISTURE AND WARM AIR ADVECTION WILL CONTINUE TODAY AHEAD OF A SHARP SHORT WAVE TROUGH THAT WILL SWING FROM SOUTHERN CALIFORNIA INTO THE PANHANDLES BY TONIGHT. THE INCREASING MOISTURE ALONG WITH INCREASING INSTABILITY AND LIFT FROM THE APPROACHING STORM SYSTEM WILL HELP TO PRODUCE SHOWERS AND THUNDERSTORMS ACROSS THE AREA TODAY AND TONIGHT. THE BEST CHANCE OF RAIN LOOKS TO BE ACROSS THE SOUTHEAST TEXAS PANHANDLE CLOSER TO THE DEEPER MOISTURE. A THUNDERSTORM OR TWO MAY BECOME SEVERE ACROSS THE SOUTHERN TEXAS PANHANDLE WITH LARGE HAIL BEING THE MAIN HAZARD. SEE THE LATEST SWODY1 FOR MORE DETAILS. THE UPPER LEVEL SHORT WAVE TROUGH OVER THE PANHANDLES TONIGHT WILL SWING OFF TO THE EAST BY EARLY TUESDAY MORNING. A COLD FRONT WILL MOVE SOUTH ACROSS THE PANHANDLES EARLY TUESDAY MORNING BEHIND THIS SYSTEM. SOME FOG MAY AGAIN DEVELOP TONIGHT AHEAD OF THIS COLD FRONT...ESPECIALLY IF WE HAVE LOCALLY HEAVY RAIN IN THE SOUTHEAST TEXAS PANHANDLE. TEMPERATURES WILL ACTUALLY BE WARMER ON TUESDAY OVER TODAY/S READINGS BEHIND THE FRONT AS ADDED SUNSHINE COMBINES WITH DRIER AIR. ANOTHER FAST MOVING UPPER LEVEL OPEN SHORT WAVE TROUGH MOVES ACROSS THE SOUTHERN ROCKIES AND SOUTHERN HIGH PLAINS LATE IN THE WEEK. RIGHT NOW THE MODELS ARE SHOWING SOME PRECIPITATION WITH THIS SYSTEM...BUT THEY DO NOT AGREE ON THE TIMING NOR THE STRENGTH OF THIS NEXT SYSTEM. FOR NOW WILL KEEP THE FORECAST DRY AND WAIT FOR THE MODELS TO COME INTO BETTER AGREEMENT. UPPER HEIGHTS START TO RISE AGAIN BEHIND THIS SYSTEM FOR NEXT WEEKEND...SO WE CAN EXPECT WARMER TEMPERATURES ALONG WITH DRY WEATHER. FIRE WEATHER... SHOWER AND THUNDERSTORM CHANCES INCREASE TODAY AND TONIGHT ACROSS THE PANHANDLES...WITH THE BEST CHANCE OF HEAVIER RAIN ACROSS THE SOUTHEAST TEXAS PANHANDLE. DRIER AIR MOVES SOUTHEAST ACROSS THE REGION BEHIND A COLD FRONT ON TUESDAY...BUT LOWEST AFTERNOON RELATIVE HUMIDITIES ARE EXPECTED TO STAY ABOVE 20 PERCENT. SOUTHWEST WINDS WILL PICK UP INTO THE 15 TO 30 MPH RANGE AND THE RELATIVE HUMIDITY MAY DROP TO NEAR 20 PERCENT IN THE WESTERN OKLAHOMA PANHANDLE AND THE NORTHWEST TEXAS PANHANDLE BY THANKSGIVING. && .AMA WATCHES/WARNINGS/ADVISORIES... TX...NONE. OK...NONE. && 08/15
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE AMARILLO TX 337 AM CST MON NOV 21 2011 OKZ001>003-TXZ001>020-212145- CIMARRON-TEXAS-BEAVER-DALLAM-SHERMAN-HANSFORD-OCHILTREE-LIPSCOMB- HARTLEY-MOORE-HUTCHINSON-ROBERTS-HEMPHILL-OLDHAM-POTTER-CARSON- GRAY-WHEELER-DEAF SMITH-RANDALL-ARMSTRONG-DONLEY-COLLINGSWORTH- 337 AM CST MON NOV 21 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE TEXAS AND OKLAHOMA PANHANDLES. .DAY ONE...TODAY AND TONIGHT. THUNDERSTORMS WILL BE POSSIBLE ACROSS THE PANHANDLES. ONE OR TWO STORMS MAY BECOME SEVERE ACROSS THE SOUTHERN TEXAS PANHANDLE WITH LARGE HAIL BEING THE MAIN HAZARD. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY. ELEVATED FIRE WEATHER CONDITIONS WILL BE POSSIBLE ACROSS THE WESTERN OKLAHOMA PANHANDLE AND THE NORTHWEST TEXAS PANHANDLE ON THURSDAY AFTERNOON DUE TO LOW RELATIVE HUMIDITY VALUES AND BREEZY SOUTHWEST WINDS. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE NEEDED IN ISOLATED SPOTS ACROSS THE SOUTHERN TEXAS PANHANDLE THIS AFTERNOON AND EVENING. AREA FIRE MANAGERS AND EMERGENCY OFFICIALS SHOULD BE ALERT FOR ELEVATED FIRE WEATHER CONDITIONS THURSDAY. GOEHRING
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AMARILLO TX 1031 AM CST MON NOV 21 2011 TXZ011-012-016-017-211730- DEAF SMITH TX-OLDHAM TX-POTTER TX-RANDALL TX- 1031 AM CST MON NOV 21 2011 ...SIGNIFICANT WEATHER ADVISORY... THE NATIONAL WEATHER SERVICE IN AMARILLO HAS ISSUED A SIGNIFICANT WEATHER ADVISORY EFFECTIVE UNTIL 1130 AM CST FOR RANDALL...POTTER... OLDHAM AND DEAF SMITH COUNTIES. AT 1030 AM CST...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE MONITORING A STRONG THUNDERSTORM 6 MILES WEST OF BOOTLEG...OR ABOUT 29 MILES WEST OF HEREFORD...MOVING NORTHEAST AT 35 MPH. ONE HALF INCH HAIL AND WINDS AROUND 50 MPH ARE POSSIBLE. PERSONS IN THE PATH OF THESE STORMS SHOULD CLOSELY MONITOR WEATHER RADIO OR OTHER MEDIA FOR OTHER UPDATES AND POSSIBLE WARNINGS. BE PREPARED TO TAKE ACTION IF A WARNING IS ISSUED. KS
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AMARILLO TX
1046 AM CST MON NOV 21 2011
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1046 AM HAIL BOOTLEG 34.83N 102.81W
11/21/2011 E1.00 INCH DEAF SMITH TX FIRE DEPT/RESCUE
PEA TO QUARTER SIZE HAIL COVERING THE GROUND.
&&
EVENT NUMBER AMA1100473
JACKSONThe Cannon AFB radar (KFDX), 77 km away, was scanning. The volume nearest the first event began at 16:45 UTC.
1 hail. Local standard time, as filed.
The Bootleg Fire Department reported pea to quarter size hail covering the ground in the town of Bootleg Texas. There were no reports of damage or injuries.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Texas in 2011Every state in 2011This day in weather historyWarnings in Texas, November 2011
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 353156.