Alert archive / Texas / Wind Chill Advisories in 2009
Wind Chill Advisory 1, NWS Amarillo, TX
NWS Amarillo, TX issued this wind chill advisory at Dec 8, 2009, 4:48 AM CST for 17 counties in Texas; Beaver County, Cimarron County, Texas County, Oklahoma. It took effect at Dec 8, 2009, 6:00 PM CST. It was in force for 15 hr.
The area
The counties it named.
The facts
- Issued
- Dec 8, 2009, 4:48 AM CST (10:48 UTC)
- In effect from
- Dec 8, 2009, 6:00 PM CST
- Expired
- Dec 9, 2009, 9:00 AM CST
- In force
- 15 hr
- Issued by
- NWS Amarillo, TX
Counties Beaver County, OK, Cimarron County, OK, Texas County, OK, Armstrong County, TX, Carson County, TX, Dallam County, TX, Deaf Smith County, TX, Gray County, TX, Hansford County, TX, Hartley County, TX, Hemphill County, TX, Hutchinson County, TX, Lipscomb County, TX, Moore County, TX, Ochiltree County, TX, Oldham County, TX, Potter County, TX, Randall County, TX, Roberts County, TX, Sherman County, TX
The radar
The Amarillo radar (KAMA), 72 km from the middle of the area, began a volume at 10:51 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.
The nearest sounding before it
Amarillo Airport, TX (KAMA), launched 00:00Z, 10.8 hours before the alert went out and 72 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
- 718 m above ground
- 0-6 km bulk shear
- 80 kt
- 0-1 km storm-relative helicity
- 210 m²/s²
- 0-3 km storm-relative helicity
- 282 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this wind chill advisory 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 wind chill advisory went out at Dec 8, 3:59 AM CST, 49 minutes earlier.
Area forecast discussion, Dec 8, 3:59 AM CST, 49 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE AMARILLO TX
359 AM CST TUE DEC 8 2009
.DISCUSSION...
VERY BUSY FORECAST PACKAGE WITH THE POTENTIAL FOR WINTRY PRECIP THIS
MORNING...HIGH WINDS THIS AFTERNOON...AND LOW WIND CHILLS TONIGHT.
UPPER SYSTEM TRACKING EAST FROM THE FOUR CORNERS REGION AND SHOULD
APPROACH THE PANHANDLES BY 18Z TODAY. CANNOT RULE OUT SOME WINTRY
PRECIP THIS MORNING...THEREFORE WILL LEAVE POPS AND WINTER WEATHER
ADVISORY IN EFFECT UNTIL 18Z TODAY FOR ALL OF THE FORECAST AREA.
CONFIDENCE NOT AS HIGH ON PRECIP AFTER 18Z...HOWEVER STRONG UPPER
LEVEL DYNAMICS AND COLD AIR ALOFT MAY ALLOW FOR PRECIP TO DEVELOP
ACROSS THE NORTHERN SECTIONS. WILL ALSO LEAVE POPS FROM 18Z TODAY TO
00Z WEDNESDAY ALONE. OTHERWISE...THE BIG STORY WITH THIS MID AND
UPPER SYSTEM WILL BE THE VERY STRONG WINDS ACROSS THE SOUTHWEST AND
SOUTH CENTRAL TX PANHANDLE. UPGRADED THE HIGH WIND WATCH TO A HIGH
WIND WARNING FOR THIS AREA FROM 16Z TODAY TO 00Z WEDNESDAY. THE
STRONGEST WINDS AND TIGHTEST PRESSURE GRADIENT EXPECTED TO BE ON THE
CAPROCK WITH A QUICK DROP OFF ON WIND SPEEDS OFF THE CAPROCK TODAY.
SURROUNDING THE HIGH WIND WARNING CRITERIA WINDS TODAY WILL BE WIND
ADVISORY CRITERIA WIND SPEEDS. EXPECT PRESSURE GRADIENT TO LESSEN BY
THIS EVENING AS THE MID LEVEL CIRCULATION TRACKS AWAY FROM THE
PANHANDLES ACROSS NORTHERN KS INTO THE MIDWESTERN STATES. WINDS WILL
SUBSIDE FROM WEST TO EAST TONIGHT WITH THE EASTERN SECTIONS OF THE
PANHANDLES THE LAST TO DIMINISH BY LATE TONIGHT. ALSO... A STRONG COLD
FRONT WILL PUSH SOUTH ACROSS THE PANHANDLES THIS EVENING. STRONG AND
GUSTY WINDS FOLLOWING THE PASSAGE OF THE FRONT WILL KEEP THE
NORTHERLY WINDS FROM DECREASING TOO EARLY TONIGHT. WITH THE VERY COLD
AIR ADVECTION AND GUSTY WINDS EXPECTED TONIGHT MAINLY ACROSS THE OK
AND NORTHERN HALF OF THE TX PANHANDLES TONIGHT...WILL ALSO ISSUE A
WIND CHILL ADVISORY FROM 03Z TO 15Z WEDNESDAY.
IN ADDITION TO THE STRONG WINDS TODAY...AREA OF BLOWING DUST POSSIBLE
MAINLY ACROSS THE SOUTHERN HALF OF THE TX PANHANDLE. GRADUALLY
MODERATING TEMPS AND DRY FROM MID WEEK THROUGH THE WEEKEND.
SCHNEIDER
&&
.FIRE WEATHER...
WITH THE STRONG TO VERY STRONG WINDS EXPECTED TODAY ACROSS MUCH OF THE
WESTERN AND SOUTHERN SECTIONS OF THE FORECAST AREA MAINLY WEST OF THE
CAPROCK OR WEST OF A CLARENDON TO PAMPA LINE...ELEVATED FIRE WEATHER
CONDITIONS POSSIBLE. DUE TO RH VALUES EXPECTED TO REMAIN AT OR ABOVE
30 PERCENT TODAY...RED FLAG WARNING CRITERIA NOT EXPECTED TO BE MET.
NO FURTHER FIRE WEATHER CONCERNS EXPECTED AT THIS TIME WEDNESDAY
THROUGH THE WEEKEND.
SCHNEIDER
&&
.PRELIMINARY POINT TEMPS/POPS...
AMARILLO TX 48 10 34 15 40 / 50 5 0 0 0
BEAVER OK 33 5 21 4 29 / 60 5 0 0 0
BOISE CITY OK 35 3 26 7 33 / 60 5 0 0 0
BORGER TX 41 10 32 14 40 / 60 5 0 0 0
BOYS RANCH TX 45 9 34 13 39 / 50 5 0 0 0
CANYON TX 53 11 37 15 42 / 50 5 0 0 0
CLARENDON TX 52 15 34 17 38 / 50 5 0 0 0
DALHART TX 41 7 31 9 35 / 60 5 0 0 0
GUYMON OK 40 4 25 4 32 / 60 5 0 0 0
HEREFORD TX 51 11 40 15 44 / 50 5 0 0 0
LIPSCOMB TX 34 7 25 10 33 / 60 5 0 0 0
PAMPA TX 40 13 32 14 39 / 50 5 0 0 0
SHAMROCK TX 43 13 33 16 36 / 50 5 0 0 0
WELLINGTON TX 52 14 33 15 36 / 50 5 0 0 0
&&
.AMA WATCHES/WARNINGS/ADVISORIES...
TX...WINTER WEATHER ADVISORY UNTIL NOON CST TODAY FOR THE FOLLOWING
ZONES: ARMSTRONG...CARSON...COLLINGSWORTH...DALLAM...DEAF
SMITH...DONLEY...GRAY...HANSFORD...HARTLEY...HEMPHILL...
HUTCHINSON...LIPSCOMB...MOORE...OCHILTREE...OLDHAM...
POTTER...RANDALL...ROBERTS...SHERMAN...WHEELER.
WIND CHILL ADVISORY FROM 9 PM THIS EVENING TO 9 AM CST WEDNESDAY
FOR THE FOLLOWING ZONES: DALLAM...HANSFORD...HARTLEY...
HEMPHILL...HUTCHINSON...LIPSCOMB...MOORE...OCHILTREE...
ROBERTS...SHERMAN.
WIND ADVISORY FROM 10 AM THIS MORNING TO 6 PM CST THIS EVENING
FOR THE FOLLOWING ZONES: CARSON...DALLAM...DONLEY...GRAY...
HARTLEY...MOORE.
HIGH WIND WARNING FROM 10 AM THIS MORNING TO 6 PM CST THIS
EVENING FOR THE FOLLOWING ZONES: ARMSTRONG...DEAF SMITH...
OLDHAM...POTTER...RANDALL.
OK...WINTER WEATHER ADVISORY UNTIL NOON CST TODAY FOR THE FOLLOWING
ZONES: BEAVER...CIMARRON...TEXAS.
WIND CHILL ADVISORY FROM 9 PM THIS EVENING TO 9 AM CST WEDNESDAY
FOR THE FOLLOWING ZONES: BEAVER...CIMARRON...TEXAS.
&&
16/11Hazardous weather outlook, Dec 7, 4:33 PM CST, 12 hours 15 minutes before
TEXAS/OKLAHOMA PANHANDLES HAZARDOUS WEATHER OUTLOOK...UPDATED NATIONAL WEATHER SERVICE AMARILLO TX 433 PM CST MON DEC 7 2009 OKZ001>003-TXZ001>020-081200- ARMSTRONG-BEAVER-CARSON-CIMARRON-COLLINGSWORTH-DALLAM-DEAF SMITH- DONLEY-GRAY-HANSFORD-HARTLEY-HEMPHILL-HUTCHINSON-LIPSCOMB-MOORE- OCHILTREE-OLDHAM-POTTER-RANDALL-ROBERTS-SHERMAN-TEXAS-WHEELER- 433 PM CST MON DEC 7 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE TEXAS AND OKLAHOMA PANHANDLES. .DAY ONE... FREEZING DRIZZLE AND FREEZING RAIN WILL PREVAIL ACROSS THE PANHANDLES THROUGH TONIGHT. A LIGHT ICE ACCUMULATION IS EXPECTED. A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL NOON TUESDAY FOR THE OKLAHOMA AND TEXAS PANHANDLES. .DAYS TWO THROUGH SEVEN... A WINTER WEATHER ADVISORY CONTINUES UNTIL NOON TUESDAY FOR THE OKLAHOMA AND TEXAS PANHANDLES FOR LIGHT ICE ACCUMULATIONS. A VERY INTENSE LOW PRESSURE SYSTEM WILL BRING VERY STRONG SOUTHWESTERLY WINDS TO THE REGION ON TUESDAY. A HIGH WIND WATCH HAS BEEN ISSUED FOR THE SOUTHWESTERN AND SOUTH CENTRAL PARTS OF THE TEXAS PANHANDLE WHERE WINDS ARE LIKELY REACH SPEEDS UP TO 40 MPH WITH HIGHER GUSTS POSSIBLE. ACROSS THE REST OF THE PANHANDLES...WINDS WILL BE 25 TO 35 MPH. THEREFORE...A WIND ADVISORY MAY BE ISSUED FOR THE REMAINDER OF THE PANHANDLE REGION. ALSO...THE STRONG WINDS MAY PRODUCE LOCALIZED AREAS OF BLOWING DUST ESPECIALLY ACROSS THE SOUTHERN TEXAS PANHANDLE. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS AND PARTNERS ARE ENCOURAGED TO RELAY REPORTS OF WINTER WEATHER CONDITIONS AND WIND RELATED DAMAGE TO THE NATIONAL WEATHER SERVICE. GOEHRING
The office that day
Everything else NWS Amarillo, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 8, 4:20 AM CST | High Wind Warning | AMA | Armstrong, Deaf Smith, Oldham, Potter, Randall | 14 hr |
| Dec 8, 4:20 AM CST | Wind Advisory | AMA | Carson, Dallam, Donley, Gray, Hartley, Moore | 14 hr |
Nearby
Wind Chill Advisories in Texas, 2009Wind Chill Advisories in Oklahoma, 2009Every wind chill advisory in 2009
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.