Alert archive / Texas / Winter Storm Warnings in 2018

Winter Storm Warning 1, NWS Amarillo, TX

November 11, 2018Beaver County, Oklahoma; 14 counties in Texas

NWS Amarillo, TX issued this winter storm warning at Nov 11, 2018, 3:14 AM CST for Beaver County, Oklahoma; 14 counties in Texas. It took effect at Nov 11, 2018, 6:00 PM CST. It was in force for 18 hr. 60 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
Nov 11, 2018, 3:14 AM CST (09:14 UTC)
In effect from
Nov 11, 2018, 6:00 PM CST
Expired
Nov 12, 2018, 12:00 PM CST
In force
18 hr
Issued by
NWS Amarillo, TX

Counties Beaver County, OK, Carson County, TX, Dallam County, TX, Deaf Smith County, TX, Hansford County, TX, Hartley 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), 68 km from the middle of the area, began a volume at 09:12 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.

What was reported inside it

TimeReportWhereRemark
Nov 11, 9:07 PM CSTSNOW 4Dumas, TX4 INCHES OF NEW SNOW WAS MEASURE IN DUMAS. ESTIMATES SUGGEST THAT THE SNOW FELL OVER THE COURSE OF ABOUT 4 HOURS. MODERATE SNOW STILL BEING REPORTED AT THE DUMAS SITE.
Nov 11, 9:15 PM CSTSNOW 0Stinnett, TXHIGHWAY 152 FROM STINNETT TO DUMAS IS UNDER WHITE OUT CONDITIONS.
Nov 11, 9:40 PM CSTSNOW 0Dawn, TXREPORT OF ZERO VISIBILITY IN DAWN ON HWY 60.
Nov 11, 9:40 PM CSTSNOW 1Hereford, TXDEPUTY SAID THERE IS AT LEAST 1 OF SNOW ON THE GROUND WITH MODERATE SNOW FALLING. ROADS ARE ALREADY BAD WITH TRAFFIC HAVING TO DRIVE 20 MPH OR LESS AND SOME VEHICLES HAVE ALREADY ENDED UP IN DITCHES.
Nov 11, 9:50 PM CSTSNOW 04 Ssw Amarillo, TXWHITE OUT CONDITIONS OCCURING, NWS EMPLOYEE CAN'T SEE ACROSS THE STREET.
Nov 11, 11:00 PM CSTSNOW 04 Sse Channing, TXBLACK ICE, MULTIPLE VEHICLES OFF ROAD, ONE VEHICLE HIT A SNOW PLOW.
Nov 11, 11:00 PM CSTSNOW 2Dalhart, TX
Nov 11, 11:05 PM CSTSNOW 2.5Canyon, TXHUNSLEY HILLS
Nov 11, 11:15 PM CSTSNOW 2.512 E Hartley, TXDEPUTY ESTIMATED 2 TO 3 INCHES OF NEW SNOW HAD FALLEN IN EASTERN HARTLEY COUNTY.
Nov 11, 11:15 PM CSTSNOW 5Channing, TXOFFICER ESTIMATED 5 INCHES OF NEW SNOW, AND SNOW DRIFTS NEAR 1 FOOT.
Nov 11, 11:23 PM CSTSNOW 13 E Borger, TXSNOW PACKED ROADS, 1 INCH OF SNOW ON ROADS, HIGHER AMOUNTS ELSE WHERE. DEPUTY WAS ON HWY 152 EAST OF BORGER.
Nov 11, 11:27 PM CSTSNOW 2.53 W Vega, TXS.O. REPORTS THAT 2 TO 3 INCHES OF SNOW ARE BEING REPORTED FROM AREAS MAINLY WEST OF VEGA. SNOW IS NOW BEGINNING TO STICK IN VEGA WITH VISIBILITIES 1/2 TO 1 MILE.
Nov 11, 11:32 PM CSTSNOW 2.55 Sse Hereford, TXDEPUTY ESTIMATES 2 TO 3 INCHES OF SNOW FALLEN AROUND THE HEREFORD AREA WITH DRIFTS MUCH HIGHER. CARS HAD SLID OFF THE ROAD ON HWY 385 BETWEEN HEREFORD AND DIMMITT. SAME ISSUE BETWEEN HEREFORD AND DAWN ALONG HIGHWAY 60.
Nov 11, 11:35 PM CSTSNOW 5Dumas, TXDISPATCH WAS ESTIMATING THAT THEY HAVE GOTTEN AT LEAST 5 INCHES AT THE STATION. DEPUTIES ARE ON HWY 287 SOUTH OF DUMAS, WITH AT LEAST 2 SEMIS THAT HAVE JACKED KNIFED AND ARE BLOCKING TRAFFIC.
Nov 11, 11:35 PM CSTSNOW 5Dumas, TXDISPATCH WAS ESTIMATING THAT THEY HAVE GOTTEN AT LEAST 5 INCHES AT THE STATION. DEPUTIES ARE ON HWY 287 WITH AT LEAST 2 SEMIS THAT HAVE JACKED KNIFED AND ARE BLOCKING TRAFFIC.
Nov 12, 12:00 AM CSTSNOW 2Perryton, TXDEPUTY ESTIMATED 2 INCHES OF NEW SNOW IN THE PERRYTON AREA.
Nov 12, 12:00 AM CSTSNOW 2.54 Wsw Amarillo, TXNWS VOLUNTEER MEASURED 2.5 INCHES OF SNOW ON THE GROUND.
Nov 12, 12:00 AM CSTSNOW 37 Ene Amarillo, TX3 INCHES MEASURED NEW SNOW AT THE NATIONAL WEATHER SERVICE.
Nov 12, 12:00 AM CSTSNOW 42 S Amarillo, TXSECOND HAND REPORT FORM LOCAL MEDIA'S SOCIAL MEDIA ACCOUNT HAD A REPORT OF 4 INCHES AT LAMAR ELEMENTARY SCHOOL IN AMARILLO.
Nov 12, 12:00 AM CSTSNOW 43 W Timbercreek Canyon, TXSECOND HAND REPORT FROM LOCAL MEDIA'S SOCIAL MEDIA ACCOUNT HAD A REPORT OF 4 INCHES IN MESCALERO PARK.
Nov 12, 12:00 AM CSTSNOW 4.5Fritch, TXSECOND HAND REPORT FROM LOCAL MEDIA'S SOCIAL MEDIA ACCOUNT HAD A REPORT OF 4.5 INCHES IN FRITCH.
Nov 12, 12:00 AM CSTSNOW 54 Wsw Amarillo, TXSECOND HAND REPORT FROM LOCAL MEDIA'S SOCIAL MEDIA ACCOUNT HAD A REPORT OF 5 INCHES AT I-40 AND WESTERN.
Nov 12, 12:00 AM CSTSNOW 5Stinnett, TXSECOND HAND REPORT FROM LOCAL MEDIA'S SOCIAL MEDIA ACCOUNT HAD A REPORT OF 5 INCHES IN STINNETT.
Nov 12, 12:00 AM CSTHEAVY SNOW 7Adrian, TXSECOND HAND REPORT FROM LOCAL MEDIA'S SOCIAL MEDIA ACCOUNT HAD A REPORT OF 7 INCHES NEAR ADRIAN.
Nov 12, 12:00 AM CSTHEAVY SNOW 7Dumas, TXSECOND HAND REPORT FROM LOCAL MEDIA'S SOCIAL MEDIA ACCOUNT HAD A REPORT OF 7 INCHES IN DUMAS.
Nov 12, 12:00 AM CSTHEAVY SNOW 7Panhandle, TXSECONDHAND REPORT OF 7 INCHES IN PANHANDLE.
Nov 12, 12:00 AM CSTHEAVY SNOW 7Panhandle, TXSECOND HAND REPORT FROM LOCAL MEDIA'S SOCIAL MEDIA ACCOUNT HAD A REPRT OF 7 INCHES IN PANHANDLE.
Nov 12, 12:25 AM CSTSNOW 36 Wsw Amarillo, TXSECOND HAND REPORT FROM LOCAL MEDIA'S SOCIAL MEDIA ACCOUNT HAD A REPORT OF 3 INCHES AT 45TH AND COULTER IN AMARILLO.
Nov 12, 1:21 AM CSTSNOW 3Dalhart, TXSHERIFFS OFFICE ESTIMATES THEY ARE UP TO 3 INCHES NOW IN DALHART.
Nov 12, 1:30 AM CSTSNOW 2Gruver, TXGAS STATION IN GRUVER ESTIMATED THAT 2 INCHES OF SNOW HAD FALLEN, AND IT WAS STILL SNOWING AT THE TIME OF REPORT.
Nov 12, 1:31 AM CSTSNOW 4Spearman, TXGAS STATION IN SPEARMAN REPORTED AN ESTIMATED 4 INCHES OF SNOW HAD FALLEN AND IT WAS STILL SNOWING AT THE TIME OF REPORT.
Nov 12, 1:32 AM CSTHEAVY SNOW 6Channing, TXDEPUTY MEASURED 6 INCHES OF SNOW IN THE TOWN OF CHANNING.
Nov 12, 1:41 AM CSTSNOW 2.5Stratford, TXSHERIFFS OFFICE ESTIMATES ABOUT 2 TO 3 INCHES OF NEW SNOW HAS FALLEN IN STRATFORD.
Nov 12, 1:55 AM CSTSNOW 4Lipscomb, TXSHERIFFS OFFICE IN LIPSCOMB ESTIMATED ABOUT 4 INCHES OF NEW SNOW ON THE GROUND.
Nov 12, 1:59 AM CSTSNOW 4Hereford, TX4, BUT SOME SNOW MAY HAVE ALREADY MELTED
Nov 12, 2:13 AM CSTSNOW 5Perryton, TXSHERIFFS OFFICE ESTIMATES ABOUT 5 INCHES OF NEW SNOW HAS FALLEN.
Nov 12, 3:00 AM CSTSNOW 45 Sw Amarillo, TXBROADCAST MEDIA
Nov 12, 3:15 AM CSTSNOW 12 E Elmwood, OKEMERGENCY MANAGER ESTIMATED ABOUT 1 TO 1.5 INCHES OF SNOW HAD FALLEN.
Nov 12, 3:26 AM CSTHEAVY SNOW 6Vega, TXSHERIFFS OFFICE REPORTS 5 TO 6 INCHES IN THE TOWN OF VEGA WITH HIGER AMOUNTS TO THE WEST.
Nov 12, 5:24 AM CSTSNOW 7Borger, TX6 TO 8 INCHES OF SNOW IN AND AROUND BORGER, WITH HEAVIEST AMOUNTS ON WEST SIDE OF TOWN.
Nov 12, 6:30 AM CSTSNOW 4.51 N Hereford, TXCOCORAHS STATION TX-DS-5, 1 NNW HEREFORD.
Nov 12, 7:00 AM CSTSNOW 1.8Texline, TXCOCORAHS STATION TX-DL-1, TEXLINE.
Nov 12, 7:00 AM CSTSNOW 2.3Stratford, TXCOCORAHS STATION TX-SR-1, STRATFORD.
Nov 12, 7:00 AM CSTSNOW 2.58 N Floris, OKCOCORAHS STATION OK-BV-5, 8 N FLORIS.
Nov 12, 7:00 AM CSTSNOW 3.52 Ene Hereford, TXCOCORAHS STATION TX-DS-4, 2 ENE HEREFORD.
Nov 12, 7:00 AM CSTSNOW 5.55 Wsw Amarillo, TXCOCORAHS STATION TX-RD-25, 4 WSW AMARILLO.
Nov 12, 7:00 AM CSTSNOW 6.55 E Fritch, TXCOCORAHS STATION TX-HTH-7, FRITCH 5.1 E.
Nov 12, 7:15 AM CSTSNOW 4Dawn, TXOBSERVER REPORT 4
Nov 12, 7:15 AM CSTSNOW 4Dawn, TXOBSERVER REPORT 4.
Nov 12, 8:00 AM CSTSNOW 42 Ssw Hereford, TXCOCORAHS STATION TX-DS-6, 2 SSW HEREFORD.
Nov 12, 8:00 AM CSTHEAVY SNOW 65 Se Slapout, OK
Nov 12, 8:08 AM CSTSNOW 821 Se Spearman, TX25 MILES NW OF MIAMI
Nov 12, 8:08 AM CSTSNOW 821 Se Spearman, TX25 MILES NW OF MIAMI.
Nov 12, 8:20 AM CSTHEAVY SNOW 7Morse, TXSOCIAL MEDIA REPORT WITH PICTURE
Nov 12, 8:20 AM CSTHEAVY SNOW 7Morse, TXSOCIAL MEDIA REPORT WITH PICTURE.
Nov 12, 8:33 AM CSTSNOW 4.55 Sw Amarillo, TX
Nov 12, 8:58 AM CSTSNOW 53 Nw Vega, TX
Nov 12, 8:59 AM CSTSNOW 1.7Texline, TX
Nov 12, 8:59 AM CSTSNOW 51 Ne Gruver, TX
Nov 12, 9:00 AM CSTSNOW 2.51 W Canyon, TX

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Amarillo Airport, TX (KAMA), launched 00:00Z, 9.2 hours before the alert went out and 68 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.

Skew-T log-pSkew-T log-p diagram, Amarillo Airport, TX at 00:00Z on 2018-11-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Amarillo Airport, TX at 00:00Z on 2018-11-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 217 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1637 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
217 m²/s²
0-3 km storm-relative helicity
259 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

982 
WWUS44 KAMA 110914
WSWAMA

URGENT - WINTER WEATHER MESSAGE
National Weather Service Amarillo TX
314 AM CST Sun Nov 11 2018

TXZ006-007-011-012-016-017-317-112200-
/O.UPG.KAMA.WS.A.0001.181111T1800Z-181112T1800Z/
/O.NEW.KAMA.WS.W.0001.181112T0000Z-181112T1800Z/
Hartley-Moore-Oldham-Potter-Deaf Smith-Randall-Palo Duro Canyon-
Including the cities of Hartley, Channing, Dumas, Vega, Amarillo,
Hereford, Canyon, and Palo Duro Canyon
314 AM CST Sun Nov 11 2018

...WINTER STORM WARNING IN EFFECT FROM 6 PM THIS EVENING TO NOON
CST MONDAY FOR THE SOUTHWESTERN AND WEST CENTRAL TEXAS PANHANDLE...

* WHAT...Moderate to Heavy snow expected. Plan on difficult travel
  conditions. Total snow accumulations of 4 to 7 inches are 
  expected.

* WHERE...The southwestern and west central Texas Panhandle.

* WHEN...From 6 PM this evening to noon CST Monday.

* ADDITIONAL DETAILS...Winds gusting as high as 35 mph will cause
  patchy blowing and drifting snow. Visibility may be reduced
  below 1 mile at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions are expected. If you must travel, keep an extra
flashlight, food and water in your vehicle in case of an
emergency. The latest road conditions for the state you are
calling from can be obtained by calling 5 1 1.

$$

OKZ001>003-TXZ005-010-015-020-112200-
/O.CON.KAMA.WW.Y.0006.181111T1800Z-181112T1800Z/
Cimarron-Texas-Beaver-Lipscomb-Hemphill-Wheeler-Collingsworth-
Including the cities of Boise City, Keyes, Guymon, Beaver, 
Forgan, Booker, Higgins, Follett, Canadian, Shamrock, Wheeler, 
and Wellington
314 AM CST Sun Nov 11 2018

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO
NOON CST MONDAY FOR THE OKLAHOMA PANHANDLE AND EASTERN TEXAS
PANHANDLE...

* WHAT...Snow expected. Plan on hazardous road conditions,
  including during the Monday morning commute. In addition, some 
  reductions to visibility are expected. Total snow accumulations 
  of 2 to 4 inches are expected.

* WHERE...Oklahoma Panhandle and the Eastern Texas Panhandle.

* WHEN...From noon today to noon CST Monday.

* ADDITIONAL DETAILS...Winds gusting as high as 30 mph will 
  cause patchy blowing and drifting snow.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Be prepared for snow covered
roads and limited visibilities, and use caution while driving.
The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

$$

TXZ001>004-008-009-013-014-018-019-112200-
/O.EXT.KAMA.WS.A.0001.181112T0000Z-181112T1800Z/
Dallam-Sherman-Hansford-Ochiltree-Hutchinson-Roberts-Carson-Gray-
Armstrong-Donley-
Including the cities of Dalhart, Stratford, Spearman, Gruver, 
Perryton, Borger, Miami, Panhandle, White Deer, Pampa, Claude, 
and Clarendon
314 AM CST Sun Nov 11 2018

...WINTER STORM WATCH NOW IN EFFECT FROM 6 PM THIS EVENING 
THROUGH MONDAY MORNING FOR THE NORTHERN AND CENTRAL TEXAS 
PANHANDLE...

* WHAT...Heavy snow possible. Plan on difficult travel conditions,
  including during the Monday morning commute. Total snow 
  accumulations of 3 to 5 inches, with localized amounts up to 7 
  inches, are possible.

* WHERE...Northern and central Texas Panhandle.

* WHEN...From 6 PM this evening to noon CST Monday.

* ADDITIONAL DETAILS...Winds gusting as high as 35 mph will cause
  patchy blowing and drifting snow. Visibility may be reduced
  below 1 miles at times. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Watch means there is potential for significant
snow, sleet or ice accumulations that may impact travel. Continue
to monitor the latest forecasts.

$$

Ward
5 follow-up statements
345 
WWUS44 KAMA 111751
WSWAMA

URGENT - WINTER WEATHER MESSAGE
National Weather Service Amarillo TX
1151 AM CST Sun Nov 11 2018

TXZ002-003-008-013-120200-
/O.UPG.KAMA.WS.A.0001.181112T0000Z-181112T1800Z/
/O.EXA.KAMA.WS.W.0001.181112T0000Z-181112T1800Z/
Sherman-Hansford-Hutchinson-Carson-
Including the cities of Stratford, Spearman, Gruver, Borger, 
Panhandle, and White Deer
1151 AM CST Sun Nov 11 2018

...WINTER STORM WARNING IN EFFECT FROM 6 PM THIS EVENING TO NOON
CST MONDAY...

* WHAT...Moderate to heavy snow expected. Plan on difficult travel
  conditions, including during the morning commute on Monday.
  Total snow accumulations of 4 to 8 inches are expected.

* WHERE...Sherman, Hansford, Hutchinson and Carson Counties.

* WHEN...From 6 PM this evening to noon CST Monday.

* ADDITIONAL DETAILS...Winds gusting as high as 35 mph will cause
  patchy blowing and drifting snow. Visibility may be reduced
  below 1 mile at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions are expected. If you must travel, keep an extra
flashlight, food and water in your vehicle in case of an
emergency. The latest road conditions for the state you are
calling from can be obtained by calling 5 1 1.

$$

TXZ006-007-011-012-016-017-317-120200-
/O.CON.KAMA.WS.W.0001.181112T0000Z-181112T1800Z/
Hartley-Moore-Oldham-Potter-Deaf Smith-Randall-Palo Duro Canyon-
Including the cities of Hartley, Channing, Dumas, Vega, Amarillo,
Hereford, Canyon, and Palo Duro Canyon
1151 AM CST Sun Nov 11 2018

...WINTER STORM WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING
TO NOON CST MONDAY...

* WHAT...Moderate to heavy snow expected. Plan on difficult travel
  conditions, including during the Monday morning commute. Total 
  snow accumulations of 4 to 8 inches are expected.

* WHERE...Portions of and panhandle Texas.

* WHEN...From 6 PM this evening to noon CST Monday.

* ADDITIONAL DETAILS...Winds gusting as high as 40 mph will cause
  patchy blowing and drifting snow. Visibility may be reduced
  below 1 mile at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions are expected. If you must travel, keep an extra
flashlight, food and water in your vehicle in case of an
emergency. The latest road conditions for the state you are
calling from can be obtained by calling 5 1 1.

$$

TXZ001-004-009-014-018-019-120200-
/O.UPG.KAMA.WS.A.0001.181112T0000Z-181112T1800Z/
/O.EXA.KAMA.WW.Y.0006.181111T1800Z-181112T1800Z/
Dallam-Ochiltree-Roberts-Gray-Armstrong-Donley-
Including the cities of Dalhart, Perryton, Miami, Pampa, Claude, 
and Clarendon
1151 AM CST Sun Nov 11 2018

...WINTER WEATHER ADVISORY IN EFFECT UNTIL NOON CST MONDAY...

* WHAT...Snow expected. Plan on slippery road conditions,
  including during the morning commute on Monday. In addition,
  some reductions to visibility are expected. Total snow
  accumulations of 2 to 4 inches are expected.

* WHERE...Portions of Texas.

* WHEN...Until noon CST Monday.

* ADDITIONAL DETAILS...Winds gusting as high as 40 mph will 
  cause patchy blowing and drifting snow.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Be prepared for snow covered
roads and limited visibilities, and use caution while driving.
The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

$$

OKZ001>003-TXZ005-010-015-020-120200-
/O.CON.KAMA.WW.Y.0006.181111T1800Z-181112T1800Z/
Cimarron-Texas-Beaver-Lipscomb-Hemphill-Wheeler-Collingsworth-
Including the cities of Boise City, Keyes, Guymon, Beaver, 
Forgan, Booker, Higgins, Follett, Canadian, Shamrock, Wheeler, 
and Wellington
1151 AM CST Sun Nov 11 2018

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON CST
MONDAY...

* WHAT...Snow expected. Plan on slippery road conditions, 
  including during the morning commute on Monday. In addition, 
  some reductions to visibility are expected. Total snow 
  accumulations of 2 to 4 inches are expected.

* WHERE...Portions of Oklahoma and Texas.

* WHEN...Until noon CST Monday.

* ADDITIONAL DETAILS...Winds gusting as high as 35 mph will 
  cause patchy blowing and drifting snow.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Be prepared for snow covered
roads and limited visibilities, and use caution while driving.
The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

$$

APF
786 
WWUS44 KAMA 111943
WSWAMA

URGENT - WINTER WEATHER MESSAGE
National Weather Service Amarillo TX
143 PM CST Sun Nov 11 2018

OKZ003-TXZ004-005-009-120345-
/O.UPG.KAMA.WW.Y.0006.000000T0000Z-181112T1800Z/
/O.EXA.KAMA.WS.W.0001.181112T0000Z-181112T1800Z/
Beaver-Ochiltree-Lipscomb-Roberts-
Including the cities of Beaver, Forgan, Perryton, Booker, 
Higgins, Follett, and Miami
143 PM CST Sun Nov 11 2018

...WINTER STORM WARNING IN EFFECT FROM 6 PM THIS EVENING TO NOON
CST MONDAY...

* WHAT...Moderate snow expected. Plan on difficult travel
  conditions, including during the morning commute on Monday.
  Total snow accumulations of 3 to 7 inches are expected.

* WHERE...In Oklahoma, Beaver County. In Texas, Ochiltree, 
  Lipscomb and Roberts Counties.

* WHEN...From 6 PM this evening to noon CST Monday.

* ADDITIONAL DETAILS...Winds gusting as high as 35 mph will cause
  patchy blowing and drifting snow. Visibility may be reduced
  below 1 mile at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions are expected. If you must travel, keep an extra
flashlight, food and water in your vehicle in case of an
emergency. The latest road conditions for the state you are
calling from can be obtained by calling 5 1 1.

$$

TXZ002-003-006>008-011>013-016-017-317-120345-
/O.CON.KAMA.WS.W.0001.181112T0000Z-181112T1800Z/
Sherman-Hansford-Hartley-Moore-Hutchinson-Oldham-Potter-Carson-
Deaf Smith-Randall-Palo Duro Canyon-
Including the cities of Stratford, Spearman, Gruver, Hartley, 
Channing, Dumas, Borger, Vega, Amarillo, Panhandle, White Deer, 
Hereford, Canyon, and Palo Duro Canyon
143 PM CST Sun Nov 11 2018

...WINTER STORM WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING
TO NOON CST MONDAY...

* WHAT...Heavy snow expected. Plan on difficult travel conditions,
  including during the morning commute on Monday. Total snow
  accumulations of 4 to 8 inches are expected.

* WHERE...Portions of and panhandle Texas.

* WHEN...From 6 PM this evening to noon CST Monday.

* ADDITIONAL DETAILS...Winds gusting as high as 35 mph will cause
  patchy blowing and drifting snow. Visibility may be reduced
  below 1 mile at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions are expected. If you must travel, keep an extra
flashlight, food and water in your vehicle in case of an
emergency. The latest road conditions for the state you are
calling from can be obtained by calling 5 1 1.

$$

OKZ001-002-TXZ001-010-014-015-018>020-120345-
/O.CON.KAMA.WW.Y.0006.000000T0000Z-181112T1800Z/
Cimarron-Texas-Dallam-Hemphill-Gray-Wheeler-Armstrong-Donley-
Collingsworth-
Including the cities of Boise City, Keyes, Guymon, Dalhart, 
Canadian, Pampa, Shamrock, Wheeler, Claude, Clarendon, 
and Wellington
143 PM CST Sun Nov 11 2018

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON CST
MONDAY...

* WHAT...Snow occurring. Plan on slippery road conditions,
  including during the morning commute on Monday. In addition,
  some reductions to visibility are expected. Total snow 
  accumulations of 2 to 4 inches, with localized amounts up to 5 
  inches, are expected.

* WHERE...Portions of Oklahoma and Texas.

* WHEN...Until noon CST Monday.

* ADDITIONAL DETAILS...Winds gusting as high as 40 mph will cause
  patchy blowing and drifting snow. Visibility may be reduced
  below 1 mile at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Be prepared for snow covered
roads and limited visibilities, and use caution while driving.
The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

$$

APF
428 
WWUS44 KAMA 112030
WSWAMA

URGENT - WINTER WEATHER MESSAGE
National Weather Service Amarillo TX
230 PM CST Sun Nov 11 2018

TXZ001-120430-
/O.UPG.KAMA.WW.Y.0006.000000T0000Z-181112T1800Z/
/O.EXA.KAMA.WS.W.0001.181112T0000Z-181112T1800Z/
Dallam-
Including the city of Dalhart
230 PM CST Sun Nov 11 2018

...WINTER STORM WARNING IN EFFECT FROM 6 PM THIS EVENING TO NOON
CST MONDAY...

* WHAT...Moderate to heavy snow expected. Plan on difficult 
  travel conditions, including during the morning commute on 
  Monday. Total snow accumulations of 4 to 8 inches are expected.

* WHERE...Dallam County.

* WHEN...From 6 PM this evening to noon CST Monday.

* ADDITIONAL DETAILS...Winds gusting as high as 35 mph will cause
  patchy blowing and drifting snow. Visibility may be reduced
  below 1 mile at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions are expected. If you must travel, keep an extra
flashlight, food and water in your vehicle in case of an
emergency. The latest road conditions for the state you are
calling from can be obtained by calling 5 1 1.

$$

OKZ003-TXZ002>009-011>013-016-017-317-120430-
/O.CON.KAMA.WS.W.0001.181112T0000Z-181112T1800Z/
Beaver-Sherman-Hansford-Ochiltree-Lipscomb-Hartley-Moore-
Hutchinson-Roberts-Oldham-Potter-Carson-Deaf Smith-Randall-
Palo Duro Canyon-
Including the cities of Beaver, Forgan, Stratford, Spearman, 
Gruver, Perryton, Booker, Higgins, Follett, Hartley, Channing, 
Dumas, Borger, Miami, Vega, Amarillo, Panhandle, White Deer, 
Hereford, Canyon, and Palo Duro Canyon
230 PM CST Sun Nov 11 2018

...WINTER STORM WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING
TO NOON CST MONDAY...

* WHAT...Moderate to heavy snow expected. Plan on difficult 
  travel conditions, including during the morning commute on 
  Monday. Total snow accumulations of 4 to 8 inches are expected.

* WHERE...Portions of Oklahoma and and panhandle Texas.

* WHEN...From 6 PM this evening to noon CST Monday.

* ADDITIONAL DETAILS...Winds gusting as high as 35 mph will cause
  patchy blowing and drifting snow. Visibility may be reduced
  below 1 mile at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions are expected. If you must travel, keep an extra
flashlight, food and water in your vehicle in case of an
emergency. The latest road conditions for the state you are
calling from can be obtained by calling 5 1 1.

$$

OKZ001-002-TXZ010-014-015-018>020-120430-
/O.CON.KAMA.WW.Y.0006.000000T0000Z-181112T1800Z/
Cimarron-Texas-Hemphill-Gray-Wheeler-Armstrong-Donley-
Collingsworth-
Including the cities of Boise City, Keyes, Guymon, Canadian, 
Pampa, Shamrock, Wheeler, Claude, Clarendon, and Wellington
230 PM CST Sun Nov 11 2018

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON CST
MONDAY...

* WHAT...Snow expected. Plan on slippery road conditions,
  including during the morning commute on Monday. In addition,
  some reductions to visibility are expected. Total snow 
  accumulations of 2 to 4 inches, with localized amounts up to 6 
  inches, are expected.

* WHERE...Portions of Oklahoma and Texas.

* WHEN...Until noon CST Monday.

* ADDITIONAL DETAILS...Winds gusting as high as 40 mph will cause
  patchy blowing and drifting snow. Visibility may be reduced
  below 1 mile at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Be prepared for snow covered
roads and limited visibilities, and use caution while driving.
The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

$$

APF
913 
WWUS44 KAMA 120945
WSWAMA

URGENT - WINTER WEATHER MESSAGE
National Weather Service Amarillo TX
345 AM CST Mon Nov 12 2018

OKZ003-TXZ001>009-011>013-016-017-317-121800-
/O.CON.KAMA.WS.W.0001.000000T0000Z-181112T1800Z/
Beaver-Dallam-Sherman-Hansford-Ochiltree-Lipscomb-Hartley-Moore-
Hutchinson-Roberts-Oldham-Potter-Carson-Deaf Smith-Randall-
Palo Duro Canyon-
Including the cities of Beaver, Forgan, Dalhart, Stratford, 
Spearman, Gruver, Perryton, Booker, Higgins, Follett, Hartley, 
Channing, Dumas, Borger, Miami, Vega, Amarillo, Panhandle, 
White Deer, Hereford, Canyon, and Palo Duro Canyon
345 AM CST Mon Nov 12 2018

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON CST TODAY...

* WHAT...Heavy snow occurring. Plan on difficult travel
  conditions, including during the morning commute. Additional
  snow accumulations of 1 to 3 inches are expected.

* WHERE...Eastern Oklahoma Panhandle and most of the Texas
  Panhandle. 

* WHEN...Until noon CST today.

* ADDITIONAL DETAILS...Winds gusting as high as 35 mph will 
  cause patchy blowing and drifting snow.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions are occurring. If you must travel, keep an extra
flashlight, food and water in your vehicle in case of an
emergency. The latest road conditions for the state you are
calling from can be obtained by calling 5 1 1.

$$

OKZ001-002-TXZ010-014-015-018>020-121800-
/O.CON.KAMA.WW.Y.0006.000000T0000Z-181112T1800Z/
Cimarron-Texas-Hemphill-Gray-Wheeler-Armstrong-Donley-
Collingsworth-
Including the cities of Boise City, Keyes, Guymon, Canadian, 
Pampa, Shamrock, Wheeler, Claude, Clarendon, and Wellington
345 AM CST Mon Nov 12 2018

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON CST
TODAY...

* WHAT...Snow occurring. Plan on slippery road conditions,
  including during the morning commute. In addition, some
  reductions to visibility are expected. Additional snow
  accumulations of 1 to 2inches are expected.

* WHERE...Western two-thirds of the Oklahoma Panhandle as well as  
  the southeast and east-central Texas Panhandle.

* WHEN...Until noon CST today.

* ADDITIONAL DETAILS...Winds gusting as high as 35mph will cause 
  patchy blowing and drifting snow.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Be prepared for snow covered
roads and limited visibilities, and use caution while driving.
The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

$$

Cockrell
977 
WWUS44 KAMA 121756
WSWAMA

URGENT - WINTER WEATHER MESSAGE
National Weather Service Amarillo TX
1156 AM CST Mon Nov 12 2018

OKZ003-TXZ001>009-011>013-016-017-317-121900-
/O.EXP.KAMA.WS.W.0001.000000T0000Z-181112T1800Z/
Beaver-Dallam-Sherman-Hansford-Ochiltree-Lipscomb-Hartley-Moore-
Hutchinson-Roberts-Oldham-Potter-Carson-Deaf Smith-Randall-
Palo Duro Canyon-
Including the cities of Beaver, Forgan, Dalhart, Stratford, 
Spearman, Gruver, Perryton, Booker, Higgins, Follett, Hartley, 
Channing, Dumas, Borger, Miami, Vega, Amarillo, Panhandle, 
White Deer, Hereford, Canyon, and Palo Duro Canyon
1156 AM CST Mon Nov 12 2018

...WINTER STORM WARNING WILL EXPIRE AT NOON CST TODAY...

While occasional flurries and drifting snow are possible through
this afternoon, additional snow accumulations are not expected.

$$

OKZ001-002-TXZ010-014-015-018>020-121900-
/O.EXP.KAMA.WW.Y.0006.000000T0000Z-181112T1800Z/
Cimarron-Texas-Hemphill-Gray-Wheeler-Armstrong-Donley-
Collingsworth-
Including the cities of Boise City, Keyes, Guymon, Canadian, 
Pampa, Shamrock, Wheeler, Claude, Clarendon, and Wellington
1156 AM CST Mon Nov 12 2018

...WINTER WEATHER ADVISORY WILL EXPIRE AT NOON CST TODAY...

While occasional flurries and drifting snow are possible through
this afternoon, additional snow accumulations are not expected.

$$

APF

What forecasters said that day

The local office's own words before this winter storm warning 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 winter storm warning went out at Nov 10, 10:53 PM CST, 4 hours 21 minutes earlier.

Area forecast discussion, Nov 10, 10:53 PM CST, 4 hours 21 minutes before
Area Forecast Discussion...UPDATED
National Weather Service Amarillo TX
1053 PM CST Sat Nov 10 2018

.UPDATE...
Updated to expand the Winter Storm Watch and to not Winter Weather
Advisories that are now in effect. The Oklahoma Panhandle and
eastern Texas Panhandle are under a Winter Weather Advisory, where
we expect 2 to 5 inches to occur, and the rest of the Texas
Panhandle is under a Winter Storm Watch. The Start time of the
products has been pulled back to Noon on Sunday, however the heavy
snowfall is still expected to be after sunset Sunday through
sunrise Monday. Snow amounts in the watch area will be around 4 to
7 inches.

Latest models are focusing in on the heavy snow band tomorrow
night. There is a trend to move the heavier snow band from Deaf
Smith/Oldham County across Dumas, Fritch, Borger, and into
Perryton. However, there is still good agreement that the I-40
corridor could see at least 4 to 7 inches. Given the wide range of
heavy snowfall potential, felt it was necessary to expand the
watch area. Will not rule out some areas getting snow amounts in
the 10 inch to possibly 1 ft range when this is all over. It's
just too difficult to pinpoint at this time, but would most likely
occur somewhere in the watch area.

Weber

&&

.AVIATION...06Z TAFS...
VFR conditions will prevail over the next 06-12 hours as we await
the next weather system. IFR/LIFR conditions possible thereafter
as low clouds and breezy north winds will move in with the front
early Sunday morning, and the snow will start to come in mid to
late afternoon for the northern TAF sites, DHT and GUY. Snow
should be light at first and become more moderate to heavy closer
to 00z. Light to moderate snow expected at KAMA close to 00z.
Moderate snow and blowing snow is expected at all TAF sites after
00z and thusly low visibilities down to 1/2 mile are noted in the
TAFs. This may start earlier at KDHT.

Weber

&&

.PREV DISCUSSION... /Issued 316 PM CST Sat Nov 10 2018/

SHORT TERM...Tonight through Monday...

Active weather forecast for Sunday and Monday. Surface cold front
will push through early Sunday leading to widespread temperatures
around 30 by evening. Wave currently swinging southeastward into the
Intermountain West will swing across and deepen over New Mexico by
Sunday evening. As ascent occurs ahead of this wave, the column
looks to saturate. With temperatures in the lowest 600mb of the
atmosphere being below freezing as saturation occurs, expect
precipitation to begin outright as snow, save for our far
southeastern zones. As the wave approaches, the 700mb front looks to
tighten with accordant enhanced ascent at and above this level in
the vicinity of the elevated front. Additionally, progged
700-500mb EPV* values are near or below zero in the vicinity of
this frontogenetic zone, suggesting snow may have a convective
element to it. Furthermore, temperatures in this layer are progged
to be within the favored dendritic growth zone. Healthy snowfall
rates and perhaps a rumble of thunder or two will result with the
highest snowfall amounts likely being focused over a relatively
narrow area.

Banded snowfall events like this one are always a bear to forecast
with sometimes as little as 20 miles making the difference between
high snowfall amounts and 1-2 inches or less. This event looks to be
no exception. Guidance is in pretty good agreement on the evolution
described in the above paragraph but there are slight differences in
timing and occasionally dramatic differences in placement. The first
runs of the NMM and ARW to cover this event illustrate the issue -
the ARW places the band over a Portales-PVW-CDS axis while the NMM
focuses on a TCC-BGD axis, similar to its NAM cousin which hammers a
TCC-DUX-PYX axis. Only about a 150 mile discrepancy. The good news
is looking at available GEFS members and trends between runs of the
operational models is that this ARW run is an outlier. Operational
GFS/NAM have taken a noticeable jog northward but most GEFS members
and the EC remain in the current Watch area. With all guidance
having initialized the wave well, will lean on persistence and not
bite too hard on the operational GFS/NAM shift. Tendency is thus to
place heaviest snowfall in the Oldham-Carson and Deaf Smith-
Armstrong county rows with a slight trend toward the northern row.
Have kept the Winter Storm Watch for these counties going.
Uncertainty given the banded nature of this event precludes
conversion to advisory and - if necessary - warning products at this
time.

Ferguson

LONG TERM...Monday Night through Saturday...

The upper level trof will continue its east and southeast movement
away from the forecast area Monday evening, leading to clearing
skies with lows falling into the teens to around 20 degrees across
the fcst area.

Weather pattern becomes fairly benign from Tuesday through Saturday
with predominantly dry upper level northwest flow. Temperatures will
slowly rebound through Thursday. The next dry cold front is then
slated to move across the srn high plains Thursday night, leading to
minor cooling on Friday.

02

&&

.PRELIMINARY POINT TEMPS/POPS...
Amarillo TX                33  33  25  29  17 /   0  20 100  50   0
Beaver OK                  31  34  25  35  18 /   0  60 100  40   0
Boise City OK              30  31  22  31  16 /   0  50  90  40   0
Borger TX                  33  34  26  31  19 /   0  30 100  50   0
Boys Ranch TX              34  35  26  32  15 /   0  20 100  50   0
Canyon TX                  33  34  26  28  16 /   0  20 100  50   0
Clarendon TX               34  38  28  30  20 /   0  20 100  50   0
Dalhart TX                 33  33  23  31  14 /   0  30 100  40   0
Guymon OK                  31  34  24  34  18 /   0  50 100  40   0
Hereford TX                32  34  25  29  15 /   0  20 100  50   0
Lipscomb TX                33  36  28  33  19 /   0  50 100  40   0
Pampa TX                   31  34  25  28  18 /   0  30 100  50   0
Shamrock TX                34  41  29  31  21 /   0  20 100  50   0
Wellington TX              35  47  29  34  22 /   0  20 100  50   0

&&

.AMA Watches/Warnings/Advisories...
TX...Winter Storm Watch from Sunday afternoon through Monday morning
     for the following zones: Armstrong...Carson...Dallam...Deaf
     Smith...Donley...Gray...Hansford...Hartley...Hutchinson...
     Moore...Ochiltree...Oldham...Palo Duro Canyon...Potter...
     Randall...Roberts...Sherman.

     Winter Weather Advisory from noon Sunday to noon CST Monday for
     the following zones: Collingsworth...Hemphill...Lipscomb...
     Wheeler.

OK...Winter Weather Advisory from noon Sunday to noon CST Monday for
     the following zones: Beaver...Cimarron...Texas.

&&

89/89/77/02
Hazardous weather outlook, Nov 10, 10:44 PM CST, 4 hours 30 minutes before
Hazardous Weather Outlook
National Weather Service Amarillo TX
1044 PM CST Sat Nov 10 2018

OKZ001>003-TXZ001>020-317-111645-
Cimarron-Texas-Beaver-Dallam-Sherman-Hansford-Ochiltree-Lipscomb-
Hartley-Moore-Hutchinson-Roberts-Hemphill-Oldham-Potter-Carson-
Gray-Wheeler-Deaf Smith-Randall-Armstrong-Donley-Collingsworth-
Palo Duro Canyon-
1044 PM CST Sat Nov 10 2018

This Hazardous Weather Outlook is for the Texas and Oklahoma
Panhandles.

.DAY ONE...Tonight.

Hazardous weather is not expected.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Accumulating snowfall is expected for all of the Texas and
Oklahoma Panhandles Sunday through Monday morning. The heaviest
snow is expected across the western and central Texas Panhandle
where 4 to 7 inches of snow is expect with locally higher amounts
possible. Elsewhere, 2 to 4 inches of snow is expected, mainly the
Oklahoma Panhandle and far eastern parts of the Texas Panhandle.
Visibility may also be reduced to one mile or less at times when
breezy winds are combined with periods of moderate to heavy snow.
A Winter Storm Watch is in effect from Sunday evening through
Monday morning for western and central parts of the Texas
Panhandle, and a Winter Weather Advisory is in effect for the
Oklahoma Panhandle and far eastern parts of the Texas Panhandle.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated at this time. Spotters and
observers are encouraged to review snow measuring procedures and
to be prepared to relay their snow reports to the National Weather
Service in Amarillo.

The office that day

Everything else NWS Amarillo, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Nov 10, 9:06 PM CSTWinter Weather AdvisoryAMABeaver, Cimarron, Texas39 hr

Nearby

Winter Storm Warnings in Texas, 2018Winter Storm Warnings in Oklahoma, 2018Every winter storm warning in 2018

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.