Alert archive / Texas / Winter Storm Warnings in 2007

Winter Storm Warning 5, NWS Amarillo, TX

December 9, 200720 counties in Texas; Beaver County, Cimarron County, Texas County, Oklahoma

NWS Amarillo, TX issued this winter storm warning at Dec 9, 2007, 3:33 PM CST for 20 counties in Texas; Beaver County, Cimarron County, Texas County, Oklahoma. It took effect at Dec 10, 2007, 12:00 AM CST. It was in force for 35 hr. 12 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
Dec 9, 2007, 3:33 PM CST (21:33 UTC)
In effect from
Dec 10, 2007, 12:00 AM CST
Expired
Dec 11, 2007, 10:35 AM CST
In force
35 hr
Issued by
NWS Amarillo, TX
All 23 counties

Beaver County, OK, Cimarron County, OK, Texas County, OK, Armstrong County, TX, Carson County, TX, Collingsworth County, TX, Dallam County, TX, Deaf Smith County, TX, Donley 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, Wheeler County, TX

The radar

The Amarillo radar (KAMA), 66 km from the middle of the area, began a volume at 21:33 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
Dec 11, 12:00 AM CSTFREEZING RAIN 0.05Clarendon, TXREPORTED LIGHT ICE ACCRUAL ON VEHICLES BUT NOT ON ROADS
Dec 11, 1:28 AM CSTFREEZING RAIN 0.25Groom, TXREPORTED AT LEAST ONE QUARTER INCH OF ICE ON LIMBS
Dec 11, 4:00 AM CSTFREEZING RAIN 0.2522 Ene Canadian, TX
Dec 11, 4:00 AM CSTFREEZING RAIN 0.253 Nw Booker, TX
Dec 11, 4:00 AM CSTFREEZING RAIN 0.25Texline, TX
Dec 11, 4:00 AM CSTFREEZING RAIN 0.5Follett, TX
Dec 11, 4:00 AM CSTFREEZING RAIN 0.5Knowles, OK
Dec 11, 4:00 AM CSTFREEZING RAIN 0.5Miami, TX
Dec 11, 5:00 AM CSTFREEZING RAIN 0.5Beaver, OK
Dec 11, 10:00 AM CSTFREEZING RAIN 0.12Tyrone, OK
Dec 11, 10:00 AM CSTSNOW 1Boise City, OK
Dec 11, 10:00 AM CSTSNOW 1Kenton, OK

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 12:00Z, 9.6 hours before the alert went out and 66 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 12:00Z on 2007-12-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 22 joules per kilogram.LCLEL10008507005003002001001 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 12:00Z on 2007-12-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 236 square meters per square second.1939587897117136Sfc1 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
22 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
374 m above ground
0-6 km bulk shear
72 kt
0-1 km storm-relative helicity
236 m²/s²
0-3 km storm-relative helicity
294 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WWUS44 KAMA 092133
WSWAMA

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE AMARILLO TX
333 PM CST SUN DEC 9 2007

...WINTER STORM WARNING IN EFFECT LATE TONIGHT THROUGH MONDAY
NIGHT...

.A SHALLOW DOME OF COLD AIR WILL REMAIN IN PLACE OVER THE
PANHANDLES THROUGH MONDAY...WITH A REINFORCING SHOT OF COLD AIR
EXPECTED TO ARRIVE ON TUESDAY. A STRONG STORM SYSTEM OVER THE DESERT
SOUTHWEST WILL SLOWLY APPROACH THE PANHANDLES THROUGH MID WEEK.
SEVERAL DISTURBANCES ARE EXPECTED TO MOVE ACROSS THE AREA AHEAD OF
THE MAIN SYSTEM...ENHANCING CHANCES FOR FREEZING PRECIPITATION ON
MONDAY AND TUESDAY.

OKZ001>003-TXZ001>020-100400-
/O.NEW.KAMA.WS.W.0005.071210T0600Z-071211T1200Z/
/O.EXT.KAMA.WS.A.0004.071211T1200Z-071212T0000Z/
CIMARRON-TEXAS-BEAVER-DALLAM-SHERMAN-HANSFORD-OCHILTREE-LIPSCOMB-
HARTLEY-MOORE-HUTCHINSON-ROBERTS-HEMPHILL-OLDHAM-POTTER-CARSON-
GRAY-WHEELER-DEAF SMITH-RANDALL-ARMSTRONG-DONLEY-COLLINGSWORTH-
INCLUDING THE CITIES OF...BOISE CITY...KEYES...GUYMON...BEAVER...
FORGAN...DALHART...STRATFORD...SPEARMAN...GRUVER...PERRYTON...
BOOKER...HIGGINS...FOLLETT...HARTLEY...CHANNING...DUMAS...
BORGER...MIAMI...CANADIAN...VEGA...AMARILLO...PANHANDLE...
WHITE DEER...PAMPA...SHAMROCK...WHEELER...HEREFORD...CANYON...
CLAUDE...CLARENDON...WELLINGTON
333 PM CST SUN DEC 9 2007

...WINTER STORM WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 6 AM
CST TUESDAY...
...WINTER STORM WATCH NOW IN EFFECT FROM TUESDAY MORNING THROUGH
TUESDAY AFTERNOON...

THE NATIONAL WEATHER SERVICE IN AMARILLO HAS ISSUED A WINTER
STORM WARNING FOR ALL OF THE TEXAS AND OKLAHOMA PANHANDLES...WHICH IS
IN EFFECT FROM MIDNIGHT TONIGHT TO 6 AM CST TUESDAY. THE WINTER
STORM WATCH IS NOW IN EFFECT FROM TUESDAY MORNING THROUGH TUESDAY
AFTERNOON FOR THE TEXAS AND OKLAHOMA PANHANDLES.

FREEZING RAIN AND FREEZING DRIZZLE ARE EXPECTED TO DEVELOP ACROSS THE
SOUTHERN TEXAS PANHANDLE TONIGHT...SPREADING ACROSS THE AREA ON
MONDAY. SLEET AND SNOW MAY OCCASIONALLY BECOME MIXED IN WITH THE
FREEZING RAIN...ESPECIALLY ACROSS THE OKLAHOMA PANHANDLE AND NORTHERN
PORTIONS OF THE TEXAS PANHANDLE. SIGNIFICANT ACCUMULATIONS OF ICE ARE
POSSIBLE ACROSS THE AREA...ESPECIALLY ACROSS THE CENTRAL AND EASTERN
PORTIONS OF THE TEXAS AND OKLAHOMA PANHANDLES. ACCUMULATIONS OF ICE
IN EXCESS OF ONE HALF INCH ARE POSSIBLE THROUGH TUESDAY MORNING. THE
PRECIPITATION WILL THEN TRANSITION TO MOSTLY SNOW WITH SOME SLEET
MIXED ON TUESDAY. THIS MAY RESULT IN WIDESPREAD TRAVEL PROBLEMS AS
WELL AS DOWNED POWER LINES.

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW...
SLEET...AND ICE ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO
POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE.

A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR SIGNIFICANT
SNOW...SLEET...OR ICE ACCUMULATIONS THAT MAY IMPACT TRAVEL.
CONTINUE TO MONITOR THE LATEST FORECASTS.

$$

JOHNSON
7 follow-up statements
000 
WWUS44 KAMA 100351
WSWAMA

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE AMARILLO TX
951 PM CST SUN DEC 9 2007

...WINTER STORM WARNING IN EFFECT LATE TONIGHT THROUGH MONDAY
NIGHT...

.A SHALLOW DOME OF COLD AIR WILL REMAIN IN PLACE OVER THE
PANHANDLES THROUGH MONDAY...WITH A REINFORCING SHOT OF COLD AIR
EXPECTED TO ARRIVE ON TUESDAY. A STRONG STORM SYSTEM OVER THE
DESERT SOUTHWEST WILL SLOWLY APPROACH THE PANHANDLES THROUGH MID
WEEK. SEVERAL DISTURBANCES ARE EXPECTED TO MOVE ACROSS THE AREA
AHEAD OF THE MAIN SYSTEM...ENHANCING CHANCES FOR FREEZING
PRECIPITATION STARTING LATE MONDAY MORNING AND CONTINUING THROUGH
TUESDAY. THE WINTER STORM WATCH ALSO REMAINS IN PLACE AS THE STORM 
SYSTEM COULD BE SLOW TO EXIT...POSSIBLY RESULTING IN THE WINTER
WEATHER BEING PROLONGED THROUGH TUESDAY AFTERNOON.

OKZ001>003-TXZ001>020-101200-
/O.CON.KAMA.WS.W.0005.071210T0600Z-071211T1200Z/
/O.CON.KAMA.WS.A.0004.071211T1200Z-071212T0000Z/
CIMARRON-TEXAS-BEAVER-DALLAM-SHERMAN-HANSFORD-OCHILTREE-LIPSCOMB-
HARTLEY-MOORE-HUTCHINSON-ROBERTS-HEMPHILL-OLDHAM-POTTER-CARSON-
GRAY-WHEELER-DEAF SMITH-RANDALL-ARMSTRONG-DONLEY-COLLINGSWORTH-
INCLUDING THE CITIES OF...BOISE CITY...KEYES...GUYMON...BEAVER...
FORGAN...DALHART...STRATFORD...SPEARMAN...GRUVER...PERRYTON...
BOOKER...HIGGINS...FOLLETT...HARTLEY...CHANNING...DUMAS...
BORGER...MIAMI...CANADIAN...VEGA...AMARILLO...PANHANDLE...
WHITE DEER...PAMPA...SHAMROCK...WHEELER...HEREFORD...CANYON...
CLAUDE...CLARENDON...WELLINGTON
951 PM CST SUN DEC 9 2007

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM CST
TUESDAY...
...WINTER STORM WATCH REMAINS IN EFFECT FROM TUESDAY MORNING
THROUGH TUESDAY AFTERNOON...

FREEZING RAIN AND FREEZING DRIZZLE ARE EXPECTED TO DEVELOP ACROSS
THE SOUTHERN TEXAS PANHANDLE LATE TONIGHT INTO EARLY MONDAY MORNING
AND THEN SPREAD AREAWIDE DURING THE DAY MONDAY. SLEET AND SNOW MAY
OCCASIONALLY BECOME MIXED IN WITH THE FREEZING RAIN...ESPECIALLY
ACROSS THE OKLAHOMA PANHANDLE AND NORTHERN PORTIONS OF THE TEXAS
PANHANDLE. SIGNIFICANT ACCUMULATIONS OF ICE ARE POSSIBLE ACROSS THE
AREA...ESPECIALLY ACROSS THE CENTRAL AND EASTERN PORTIONS OF THE
TEXAS AND OKLAHOMA PANHANDLES. ACCUMULATIONS OF ICE IN EXCESS OF ONE
HALF INCH ARE POSSIBLE THROUGH TUESDAY MORNING...RESULTING IN
HAZARDOUS DRIVING CONDITIONS AND THE POSSIBILITY OF DOWNED POWER
LINES AND TREE LIMBS. THE PRECIPITATION WILL THEN TRANSITION TO
MOSTLY SNOW MIXED WITH SOME SLEET EARLY TUESDAY MORNING.

A WINTER STORM WARNING MEANS THAT A MIX OF SNOW...SLEET...AND ICE ARE
EXPECTED OR OCCURRING AND WILL RESULT IN SIGNIFICANT ACCUMULATIONS BY
THE END OF THE EVENT.

AS THE MAIN UPPER LEVEL STORM SYSTEM PUSHES ACROSS THE REGION...A
SECONDARY SURGE OF COLD AIR WILL PUSH ACROSS THE PANHANDLES ON
TUESDAY. PRECIPITATION WILL TRANSITION TO ALL SNOW WHICH WILL
ACCUMULATE ON TOP OF ANY FROZEN PRECIPITATION ALREADY ON THE GROUND.
BECAUSE OF THE UNCERTAINTY IN THE AMOUNT AND TIMING...A WINTER STORM
WATCH REMAINS IN EFFECT FROM TUESDAY MORNING THROUGH TUESDAY AFTERNOON.

A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR ADDITIONAL SIGNIFICANT
SNOW...SLEET...OR ICE ACCUMULATIONS THAT MAY PROLONG HAZARDOUS CONDITIONS
ACROSS THE TEXAS AND OKLAHOMA PANHANDLES THROUGH TUESDAY NIGHT.

PERSONS LIVING OR TRAVELING THROUGH THE REGION ARE ENCOURAGED TO MONITOR
THE LATEST FORECASTS THROUGH NOAA WEATHER RADIO...THE INTERNET...OR
YOUR LOCAL MEDIA OUTLETS. 

$$

JORDAN
000 
WWUS44 KAMA 101125
WSWAMA

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE AMARILLO TX
525 AM CST MON DEC 10 2007

...WINTER STORM WARNING IN EFFECT TODAY AND TONIGHT...

.A SHALLOW DOME OF COLD AIR WILL REMAIN IN PLACE OVER THE
PANHANDLES TODAY AND TONIGHT...WITH A REINFORCING SURGE OF COLD AIR
EXPECTED TO ARRIVE ON TUESDAY. A STRONG STORM SYSTEM OVER THE
DESERT SOUTHWEST WILL SLOWLY APPROACH THE PANHANDLES THROUGH MID
WEEK. SEVERAL DISTURBANCES ARE EXPECTED TO MOVE ACROSS THE AREA
AHEAD OF THE MAIN SYSTEM...ENHANCING CHANCES FOR FREEZING OR FROZEN
PRECIPITATION STARTING LATE THIS MORNING AND CONTINUING THROUGH
TUESDAY. THE WINTER STORM WATCH ALSO REMAINS IN PLACE AS THE
STORM SYSTEM COULD BE SLOW TO EXIT...POSSIBLY RESULTING IN THE
WINTER WEATHER BEING PROLONGED THROUGH TUESDAY AFTERNOON.

OKZ001>003-TXZ001>020-101930-
/O.CON.KAMA.WS.W.0005.000000T0000Z-071211T1200Z/
/O.CON.KAMA.WS.A.0004.071211T1200Z-071212T0000Z/
CIMARRON-TEXAS-BEAVER-DALLAM-SHERMAN-HANSFORD-OCHILTREE-LIPSCOMB-
HARTLEY-MOORE-HUTCHINSON-ROBERTS-HEMPHILL-OLDHAM-POTTER-CARSON-
GRAY-WHEELER-DEAF SMITH-RANDALL-ARMSTRONG-DONLEY-COLLINGSWORTH-
INCLUDING THE CITIES OF...BOISE CITY...KEYES...GUYMON...BEAVER...
FORGAN...DALHART...STRATFORD...SPEARMAN...GRUVER...PERRYTON...
BOOKER...HIGGINS...FOLLETT...HARTLEY...CHANNING...DUMAS...
BORGER...MIAMI...CANADIAN...VEGA...AMARILLO...PANHANDLE...
WHITE DEER...PAMPA...SHAMROCK...WHEELER...HEREFORD...CANYON...
CLAUDE...CLARENDON...WELLINGTON
525 AM CST MON DEC 10 2007

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM CST
TUESDAY...
...WINTER STORM WATCH REMAINS IN EFFECT FROM TUESDAY MORNING
THROUGH TUESDAY AFTERNOON...

A WINTER STORM WARNING MEANS THAT A MIX OF FREEZING RAIN...SLEET...AND
SNOW ARE EXPECTED OR OCCURRING...AND WILL RESULT IN SIGNIFICANT
ACCUMULATIONS BY THE END OF THE EVENT.

AS THE MAIN UPPER-LEVEL STORM SYSTEM PUSHES ACROSS THE REGION...A
SECONDARY SURGE OF COLD AIR WILL PUSH ACROSS THE PANHANDLES ON
TUESDAY. PRECIPITATION WILL TRANSITION TO ALL SNOW WHICH WILL
ACCUMULATE ON TOP OF ANY FROZEN PRECIPITATION ALREADY ON THE GROUND
AND ELEVATED SURFACES. BECAUSE OF THE UNCERTAINTY IN THE AMOUNT AND
TIMING...A WINTER STORM WATCH REMAINS IN EFFECT FROM TUESDAY MORNING
THROUGH TUESDAY AFTERNOON.

A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR ADDITIONAL
SIGNIFICANT SNOW...SLEET...OR ICE ACCUMULATIONS THAT MAY PROLONG
HAZARDOUS CONDITIONS ACROSS THE TEXAS AND OKLAHOMA PANHANDLES
THROUGH TUESDAY NIGHT.

PERSONS LIVING OR TRAVELING THROUGH THE REGION ARE ENCOURAGED TO
MONITOR THE LATEST FORECASTS THROUGH NOAA WEATHER RADIO...THE
INTERNET...OR YOUR LOCAL MEDIA OUTLETS.

$$

JC
000 
WWUS44 KAMA 101836
WSWAMA

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE AMARILLO TX
1236 PM CST MON DEC 10 2007

...WINTER STORM WARNING IN EFFECT TODAY AND TONIGHT...

.A SHALLOW DOME OF COLD AIR WILL REMAIN IN PLACE OVER THE PANHANDLES
TODAY AND TONIGHT...WITH A REINFORCING SURGE OF COLD AIR EXPECTED TO
ARRIVE TOMORROW. A STRONG STORM SYSTEM OVER THE DESERT SOUTHWEST
WILL SLOWLY APPROACH THE PANHANDLES THROUGH MID WEEK. THE WINTER
STORM WATCH ALSO REMAINS IN PLACE AS THE STORM SYSTEM COULD BE SLOW
TO EXIT...POSSIBLY RESULTING IN THE WINTER WEATHER CONTINUING THROUGH
TOMORROW AFTERNOON.

OKZ001>003-TXZ001>020-110100-
/O.CON.KAMA.WS.W.0005.000000T0000Z-071211T1200Z/
/O.CON.KAMA.WS.A.0004.071211T1200Z-071212T0000Z/
CIMARRON-TEXAS-BEAVER-DALLAM-SHERMAN-HANSFORD-OCHILTREE-LIPSCOMB-
HARTLEY-MOORE-HUTCHINSON-ROBERTS-HEMPHILL-OLDHAM-POTTER-CARSON-
GRAY-WHEELER-DEAF SMITH-RANDALL-ARMSTRONG-DONLEY-COLLINGSWORTH-
INCLUDING THE CITIES OF...BOISE CITY...KEYES...GUYMON...BEAVER...
FORGAN...DALHART...STRATFORD...SPEARMAN...GRUVER...PERRYTON...
BOOKER...HIGGINS...FOLLETT...HARTLEY...CHANNING...DUMAS...
BORGER...MIAMI...CANADIAN...VEGA...AMARILLO...PANHANDLE...
WHITE DEER...PAMPA...SHAMROCK...WHEELER...HEREFORD...CANYON...
CLAUDE...CLARENDON...WELLINGTON
1236 PM CST MON DEC 10 2007

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM CST
TUESDAY...
...WINTER STORM WATCH REMAINS IN EFFECT FROM TUESDAY MORNING
THROUGH TUESDAY AFTERNOON...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM CST TUESDAY FOR
ALL OF THE TEXAS AND OKLAHOMA PANHANDLES. A WINTER STORM WATCH
ALSO REMAINS IN EFFECT ON TUESDAY.

A LARGE AREA OF RAIN AND FREEZING RAIN WILL AFFECT THE PANHANDLES THIS
AFTERNOON AND TONIGHT AS A STRONG UPPER LEVEL SYSTEM APPROACHES THE
AREA. TEMPERATURES IN THE WESTERN AND CENTRAL PORTIONS OF THE TEXAS
AND OKLAHOMA PANHANDLES HAVE WARMED ABOVE THE FREEZING MARK...WHILE
LOCATIONS IN THE EASTERN PANHANDLES ARE EXPECTED TO REMAIN BELOW
FREEZING. THEREFORE...THE MAIN IMPACTS THROUGH EARLY THIS EVENING
WILL LIKELY BE CONFINED TO THE EASTERN PANHANDLES WITH A COLD RAIN
ACROSS THE WEST. HOWEVER...AS TEMPERATURES FALL TONIGHT...THE
FREEZING RAIN POTENTIAL WILL SPREAD ACROSS THE PANHANDLES. TOTAL ICE
ACCUMULATIONS IN EXCESS OF ONE QUARTER OF AN INCH ARE EXPECTED ACROSS
MUCH OF THE AREA...WITH THE GREATEST ACCUMULATIONS ANTICIPATED OFF
THE CAPROCK. BECAUSE OF THE UNCERTAINTY IN THE AMOUNT AND TIMING...A
WINTER STORM WATCH REMAINS IN EFFECT FROM TUESDAY MORNING THROUGH
TUESDAY AFTERNOON.

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF
SNOW...SLEET...AND ICE ARE EXPECTED OR OCCURRING. STRONG WINDS ARE
ALSO POSSIBLE.  THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE.

A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR ADDITIONAL
SIGNIFICANT SNOW...SLEET...OR ICE ACCUMULATIONS THAT MAY PROLONG
HAZARDOUS CONDITIONS ACROSS THE TEXAS AND OKLAHOMA PANHANDLES
THROUGH TUESDAY NIGHT.

PERSONS LIVING OR TRAVELING THROUGH THE REGION ARE ENCOURAGED TO
MONITOR THE LATEST FORECASTS THROUGH NOAA WEATHER RADIO...THE
INTERNET...OR YOUR LOCAL MEDIA OUTLETS.

$$

JOHNSON
000 
WWUS44 KAMA 110118
WSWAMA

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE AMARILLO TX
718 PM CST MON DEC 10 2007

...WINTER STORM WARNING IN EFFECT TODAY AND TONIGHT...

.A SHALLOW DOME OF COLD AIR WILL REMAIN IN PLACE OVER THE PANHANDLES
TONIGHT...WITH A REINFORCING SURGE OF COLD AIR EXPECTED TO ARRIVE
TUESDAY. A STRONG STORM SYSTEM OVER THE DESERT SOUTHWEST WILL SLOWLY
APPROACH THE PANHANDLES THROUGH MID WEEK. THE WINTER STORM WATCH ALSO
REMAINS IN PLACE AS THE STORM SYSTEM COULD BE SLOW TO EXIT...POSSIBLY
RESULTING IN THE WINTER WEATHER CONTINUING THROUGH TUESDAY AFTERNOON.

OKZ001>003-TXZ001>020-110930-
/O.CON.KAMA.WS.W.0005.000000T0000Z-071211T1200Z/
/O.CON.KAMA.WS.A.0004.071211T1200Z-071212T0000Z/
CIMARRON-TEXAS-BEAVER-DALLAM-SHERMAN-HANSFORD-OCHILTREE-LIPSCOMB-
HARTLEY-MOORE-HUTCHINSON-ROBERTS-HEMPHILL-OLDHAM-POTTER-CARSON-
GRAY-WHEELER-DEAF SMITH-RANDALL-ARMSTRONG-DONLEY-COLLINGSWORTH-
INCLUDING THE CITIES OF...BOISE CITY...KEYES...GUYMON...BEAVER...
FORGAN...DALHART...STRATFORD...SPEARMAN...GRUVER...PERRYTON...
BOOKER...HIGGINS...FOLLETT...HARTLEY...CHANNING...DUMAS...
BORGER...MIAMI...CANADIAN...VEGA...AMARILLO...PANHANDLE...
WHITE DEER...PAMPA...SHAMROCK...WHEELER...HEREFORD...CANYON...
CLAUDE...CLARENDON...WELLINGTON
718 PM CST MON DEC 10 2007

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM CST
TUESDAY...
...WINTER STORM WATCH REMAINS IN EFFECT FROM 6 AM CST TUESDAY
THROUGH TUESDAY AFTERNOON...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM CST TUESDAY.
A WINTER STORM WATCH REMAINS IN EFFECT FROM 6 AM CST TUESDAY
THROUGH TUESDAY AFTERNOON. 

ANOTHER ROUND OF PRECIPITATION WAS LOCATED OVER NEW MEXICO THIS
EVENING AS THE UPPER LEVEL DISTURBANCE LIFTS TOWARDS TEXAS.
TEMPERATURES IN THE WESTERN AND CENTRAL PORTIONS OF THE TEXAS AND
OKLAHOMA PANHANDLES HAVE WARMED ABOVE THE FREEZING MARK...WHILE
LOCATIONS IN THE EASTERN PANHANDLES ARE NEAR FREEZING. AS TEMPERATURES
FALL TONIGHT...THE FREEZING RAIN POTENTIAL WILL SPREAD ACROSS THE
PANHANDLES. TOTAL ICE ACCUMULATIONS IN EXCESS OF ONE QUARTER OF AN
INCH ARE EXPECTED ACROSS MUCH OF THE AREA... WITH THE GREATEST
ACCUMULATIONS ANTICIPATED OFF THE CAPROCK. 

ON TUESDAY...ANOTHER SURGE OF COLD AIR WILL PRESS SOUTH ACROSS THE
PANHANDLES. BECAUSE OF THE UNCERTAINTY IN THE AMOUNT...TIMING AND
PRECIPITATION TYPE...A WINTER STORM WATCH REMAINS IN EFFECT FROM
TUESDAY MORNING THROUGH TUESDAY AFTERNOON.

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF ICE...
SLEET...AND SNOW ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO
POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE.

A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR ADDITIONAL
SIGNIFICANT SNOW...SLEET...OR ICE ACCUMULATIONS THAT MAY PROLONG
HAZARDOUS CONDITIONS ACROSS THE TEXAS AND OKLAHOMA PANHANDLES
THROUGH TUESDAY NIGHT.

PERSONS LIVING OR TRAVELING THROUGH THE REGION ARE ENCOURAGED TO
MONITOR THE LATEST FORECASTS THROUGH NOAA WEATHER RADIO...THE
INTERNET...OR YOUR LOCAL MEDIA OUTLETS.

$$

NUNEZ
000 
WWUS44 KAMA 110530
WSWAMA

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE AMARILLO TX
1130 PM CST MON DEC 10 2007

...FREEZING RAIN WILL INCREASE OVER THE PANHANDLES OVERNIGHT...

.AN UPPER LEVEL LOW PRESSURE SYSTEM...LOCATED OVER THE SOUTHWEST
UNITED STATES...WAS LIFTING SLOWLY NORTHEAST LATE THIS EVENING. AHEAD
OF THIS MAIN SYSTEM...A WEATHER DISTURBANCE WAS PUSHING TOWARDS THE
PANHANDLES...PRODUCING A LARGE AREA OF WINTRY PRECIPITATION. A
MIXTURE OF RAIN AND FREEZING RAIN SHOULD PREVAIL EARLY. HOWEVER...
SURFACE TEMPERATURES ARE EXPECTED TO DROP BELOW THE FREEZING
MARK...SPREADING FREEZING RAIN AREAWIDE.

MEANWHILE...A COLD FRONT LOCATED OVER THE CENTRAL PLAINS IS SCHEDULED
TO PUSH THROUGH THE OKLAHOMA AND TEXAS PANHANDLES...BRINGING A DEEPER
LAYER OF COLD AIR. AS A RESULT...FREEZING RAIN SHOULD CHANGE OVER TO
SLEET THEN SNOW BEHIND THE FRONTAL PASSAGE. LATEST MODELS SHOW THE
POTENTIAL OF ACCUMULATING SNOW THOUGH AMOUNTS ARE STILL IN QUESTION.
THEREFORE...A WINTER STORM REMAINS IN EFFECT FOR TUESDAY WHILE THE
UPPER LOW PRESSURE SYSTEM SLIDES TOWARDS THE CENTRAL UNITED STATES.

OKZ001>003-TXZ001>020-111200-
/O.CON.KAMA.WS.W.0005.000000T0000Z-071211T1200Z/
/O.CON.KAMA.WS.A.0004.071211T1200Z-071212T0000Z/
CIMARRON-TEXAS-BEAVER-DALLAM-SHERMAN-HANSFORD-OCHILTREE-LIPSCOMB-
HARTLEY-MOORE-HUTCHINSON-ROBERTS-HEMPHILL-OLDHAM-POTTER-CARSON-
GRAY-WHEELER-DEAF SMITH-RANDALL-ARMSTRONG-DONLEY-COLLINGSWORTH-
INCLUDING THE CITIES OF...BOISE CITY...KEYES...GUYMON...BEAVER...
FORGAN...DALHART...STRATFORD...SPEARMAN...GRUVER...PERRYTON...
BOOKER...HIGGINS...FOLLETT...HARTLEY...CHANNING...DUMAS...
BORGER...MIAMI...CANADIAN...VEGA...AMARILLO...PANHANDLE...
WHITE DEER...PAMPA...SHAMROCK...WHEELER...HEREFORD...CANYON...
CLAUDE...CLARENDON...WELLINGTON
1130 PM CST MON DEC 10 2007

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM CST
TUESDAY...
...WINTER STORM WATCH REMAINS IN EFFECT FROM 6 AM CST TUESDAY
THROUGH TUESDAY AFTERNOON...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM CST TUESDAY FOR
THE TEXAS AND OKLAHOMA PANHANDLES. A WINTER STORM WATCH REMAINS IN
EFFECT FROM 6 AM CST TUESDAY THROUGH TUESDAY AFTERNOON FOR THE
TEXAS AND OKLAHOMA PANHANDLES.

ANOTHER ROUND OF PRECIPITATION WAS ADVANCING INTO THE PANHANDLES AS
AN UPPER LEVEL DISTURBANCE LIFTS TOWARDS THE TEXAS AND OKLAHOMA
PANHANDLES. AS TEMPERATURES HOVER NEAR OR SLIGHTLY ABOVE THE
FREEZING MARK...A MIXTURE OF RAIN AND FREEZING RAIN IS EXPECTED
DURING THE EARLY PART OF NIGHT. AS READINGS FALL BELOW 32 DEGREES
HOWEVER...THE PRECIPITATION TYPE SHOULD BECOME PREDOMINANTLY FREEZING
RAIN BY LATE TONIGHT. TOTAL ICE ACCUMULATIONS IN EXCESS OF ONE
QUARTER OF AN INCH ARE EXPECTED WITH AS MUCH AS ONE HALF OF AN INCH
OR MORE EAST OF THE CAPROCK.

ON TUESDAY...ANOTHER SURGE OF COLD AIR WILL PRESS SOUTH ACROSS
THE PANHANDLES. BECAUSE OF THE UNCERTAINTY IN THE AMOUNT...TIMING
AND PRECIPITATION TYPE...A WINTER STORM WATCH REMAINS IN EFFECT
FROM TUESDAY MORNING THROUGH TUESDAY AFTERNOON.

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF ICE...
SLEET...AND SNOW ARE EXPECTED OR OCCURRING. THIS WILL MAKE TRAVEL
VERY HAZARDOUS OR IMPOSSIBLE.

A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR ADDITIONAL
SIGNIFICANT SNOW...SLEET...OR ICE ACCUMULATIONS THAT MAY PROLONG
HAZARDOUS CONDITIONS ACROSS THE TEXAS AND OKLAHOMA PANHANDLES
THROUGH TUESDAY NIGHT.

PERSONS LIVING OR TRAVELING THROUGH THE REGION ARE ENCOURAGED TO
MONITOR THE LATEST FORECASTS THROUGH NOAA WEATHER RADIO...THE
INTERNET...OR YOUR LOCAL MEDIA OUTLETS.

$$

NUNEZ
000 
WWUS44 KAMA 111028
WSWAMA

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE AMARILLO TX
428 AM CST TUE DEC 11 2007

...FREEZING RAIN WILL TRANSITION TO SNOW TODAY...

.AN UPPER LEVEL LOW PRESSURE SYSTEM...LOCATED OVER THE SOUTHWEST
UNITED STATES...WILL CONTINUE LIFTING SLOWLY NORTHEAST TODAY. AHEAD
OF THIS MAIN SYSTEM...A SERIES OF WEATHER DISTURBANCES WILL CONTINUE
MOVING TOWARDS THE PANHANDLES...PRODUCING A LARGE AREA OF WINTRY
PRECIPITATION. A MIXTURE OF RAIN AND FREEZING RAIN SHOULD PREVAIL
EARLY. HOWEVER... SURFACE TEMPERATURES ARE EXPECTED TO DROP BELOW THE
FREEZING MARK...SPREADING FREEZING RAIN AREAWIDE.

ALSO...A COLD FRONT WILL MOVE INTO THE PANHANDLES...BRINGING A
DEEPER LAYER OF COLD AIR. AS A RESULT...FREEZING RAIN SHOULD CHANGE
OVER TO SLEET AND THEN SNOW BEHIND THE FRONTAL PASSAGE. 

OKZ001-002-TXZ001>003-006>008-011>013-016>018-111830-
/O.CAN.KAMA.WS.W.0005.000000T0000Z-071211T1200Z/
/O.UPG.KAMA.WS.A.0004.071211T1200Z-071212T0000Z/
/O.NEW.KAMA.WW.Y.0004.071211T1028Z-071212T0000Z/
CIMARRON-TEXAS-DALLAM-SHERMAN-HANSFORD-HARTLEY-MOORE-HUTCHINSON-
OLDHAM-POTTER-CARSON-DEAF SMITH-RANDALL-ARMSTRONG-
INCLUDING THE CITIES OF...BOISE CITY...KEYES...GUYMON...DALHART...
STRATFORD...SPEARMAN...GRUVER...HARTLEY...CHANNING...DUMAS...
BORGER...VEGA...AMARILLO...PANHANDLE...WHITE DEER...HEREFORD...
CANYON...CLAUDE
428 AM CST TUE DEC 11 2007

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 6 PM CST THIS
AFTERNOON...
...WINTER STORM WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN AMARILLO HAS ISSUED A WINTER
WEATHER ADVISORY FOR THE WESTERN TWO THIRDS OF THE TEXAS AND OKLAHOMA
PANHANDLES...WHICH IS IN EFFECT UNTIL 6 PM CST THIS AFTERNOON. THE
WINTER STORM WARNING HAS BEEN CANCELLED FOR THE WESTERN TWO THIRDS OF
THE PANHANDLES. THE WINTER STORM WATCH IS NO LONGER IN EFFECT.

RAIN AND FREEZING RAIN WILL GRADUALLY BECOME MIXED WITH SLEET AND
SNOW AS COLDER AIR MOVES INTO THE AREA. TOTAL ICE ACCUMULATIONS LESS
THAN OF ONE QUARTER OF AN INCH ARE EXPECTED OVER THE WESTERN TWO
THIRDS OF THE PANHANDLES. ONE TO TWO INCHES OF SNOW WILL BE POSSIBLE.

PERSONS LIVING OR TRAVELING THROUGH THE REGION ARE ENCOURAGED TO
MONITOR THE LATEST FORECASTS THROUGH NOAA WEATHER RADIO...THE
INTERNET...OR YOUR LOCAL MEDIA OUTLETS.

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...SLEET...OR
FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR
SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE
DRIVING.

$$

OKZ003-TXZ004-005-009-010-014-015-019-020-111830-
/O.UPG.KAMA.WS.A.0004.071211T1200Z-071212T0000Z/
/O.EXT.KAMA.WS.W.0005.000000T0000Z-071212T0000Z/
BEAVER-OCHILTREE-LIPSCOMB-ROBERTS-HEMPHILL-GRAY-WHEELER-DONLEY-
COLLINGSWORTH-
INCLUDING THE CITIES OF...BEAVER...FORGAN...PERRYTON...BOOKER...
HIGGINS...FOLLETT...MIAMI...CANADIAN...PAMPA...SHAMROCK...
WHEELER...CLARENDON...WELLINGTON
428 AM CST TUE DEC 11 2007

...WINTER STORM WARNING NOW IN EFFECT UNTIL 6 PM CST THIS
AFTERNOON...

THE WINTER STORM WARNING IS NOW IN EFFECT UNTIL 6 PM CST THIS
AFTERNOON FOR THE EASTERN ONE THIRD OF THE TEXAS AND OKLAHOMA 
PANHANDLES. THE WINTER STORM WATCH IS NO LONGER IN EFFECT.

FREEZING RAIN TODAY WILL ACCUMULATE TO AMOUNTS AROUND ONE QUARTER
INCH. TOTAL ICE ACCUMULATIONS IN EXCESS OF ONE QUARTER OF AN INCH
ARE EXPECTED WITH AS MUCH AS ONE HALF OF AN INCH OR MORE EAST OF THE
CAPROCK. A GRADUAL TRANSITION TO SLEET AND SNOW IS EXPECTED THIS
AFTERNOON. LITTLE OR NO ACCUMULATIONS OF SLEET AND SNOW ARE EXPECTED
ACROSS THE EASTERN ONE THIRD OF THE PANHANDLES.

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF ICE...
SLEET...AND SNOW ARE EXPECTED OR OCCURRING. THIS WILL MAKE TRAVEL
VERY HAZARDOUS OR IMPOSSIBLE.

PERSONS LIVING OR TRAVELING THROUGH THE REGION ARE ENCOURAGED TO
MONITOR THE LATEST FORECASTS THROUGH NOAA WEATHER RADIO...THE
INTERNET...OR YOUR LOCAL MEDIA OUTLETS.

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW...
SLEET...AND ICE ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO
POSSIBLE.  THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE.

$$

JC
000 
WWUS44 KAMA 111635
WSWAMA

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE AMARILLO TX
1035 AM CST TUE DEC 11 2007

...LIGHT FREEZING RAIN WILL TRANSITION TO SNOW TODAY...

.AN UPPER LEVEL LOW PRESSURE SYSTEM...LOCATED OVER NORTHERN NEW
MEXICO WILL MOVE NORTHEAST TODAY. PATCHY DRIZZLE AND FREEZING DRIZZLE
THIS MORNING WILL TRANSITION TO SNOW...OCCASIONALLY BECOMING MIXED
WITH SLEET.

OKZ003-TXZ004-005-009-010-014-015-019-020-120000-
/O.CAN.KAMA.WS.W.0005.000000T0000Z-071212T0000Z/
/O.EXA.KAMA.WW.Y.0004.000000T0000Z-071212T0000Z/
BEAVER-OCHILTREE-LIPSCOMB-ROBERTS-HEMPHILL-GRAY-WHEELER-DONLEY-
COLLINGSWORTH-
INCLUDING THE CITIES OF...BEAVER...FORGAN...PERRYTON...BOOKER...
HIGGINS...FOLLETT...MIAMI...CANADIAN...PAMPA...SHAMROCK...
WHEELER...CLARENDON...WELLINGTON
1035 AM CST TUE DEC 11 2007

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 6 PM CST THIS
AFTERNOON...
...WINTER STORM WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN AMARILLO HAS ISSUED A WINTER
WEATHER ADVISORY FOR THE EASTERN ONE THIRD OF THE TEXAS AND OKLAHOMA
PANHANDLES...WHICH IS IN EFFECT UNTIL 6 PM CST THIS AFTERNOON. THE
WINTER STORM WARNING HAS BEEN CANCELLED.

DRIZZLE AND FREEZING DRIZZLE WILL GRADUALLY TRANSITION TO SLEET AND
SNOW AS COLDER AIR MOVES INTO THE AREA. ADDITIONAL ICE ACCUMULATIONS
ARE EXPECTED TO BE MINIMAL...WHILE SNOW ACCUMULATIONS OF ONE TO TWO
INCHES ARE POSSIBLE...ESPECIALLY ACROSS THE OKLAHOMA PANHANDLE AND
NORTHERN TEXAS PANHANDLE.

PERSONS LIVING OR TRAVELING THROUGH THE REGION ARE ENCOURAGED TO
MONITOR THE LATEST FORECASTS THROUGH NOAA WEATHER RADIO...THE
INTERNET...OR YOUR LOCAL MEDIA OUTLETS.

$$

OKZ001-002-TXZ001>003-006>008-011>013-016>018-120000-
/O.CON.KAMA.WW.Y.0004.000000T0000Z-071212T0000Z/
CIMARRON-TEXAS-DALLAM-SHERMAN-HANSFORD-HARTLEY-MOORE-HUTCHINSON-
OLDHAM-POTTER-CARSON-DEAF SMITH-RANDALL-ARMSTRONG-
INCLUDING THE CITIES OF...BOISE CITY...KEYES...GUYMON...DALHART...
STRATFORD...SPEARMAN...GRUVER...HARTLEY...CHANNING...DUMAS...
BORGER...VEGA...AMARILLO...PANHANDLE...WHITE DEER...HEREFORD...
CANYON...CLAUDE
1035 AM CST TUE DEC 11 2007

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM CST THIS
AFTERNOON...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM CST THIS
AFTERNOON FOR THE WESTERN TWO THIRDS OF THE TEXAS AND OKLAHOMA
PANHANDLES. 

LIGHT SNOW IS EXPECTED TO DEVELOP ACROSS THE TEXAS AND OKLAHOMA
PANHANDLES TODAY...OCCASIONALLY BECOMING MIXED WITH LIGHT SLEET. ONE
TO TWO INCHES OF SNOW WILL BE POSSIBLE...ESPECIALLY ACROSS THE
OKLAHOMA PANHANDLE AND NORTHERN TEXAS PANHANDLE.

PERSONS LIVING OR TRAVELING THROUGH THE REGION ARE ENCOURAGED TO
MONITOR THE LATEST FORECASTS THROUGH NOAA WEATHER RADIO...THE
INTERNET...OR YOUR LOCAL MEDIA OUTLETS.

$$

JOHNSON

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 Dec 9, 3:03 PM CST, 30 minutes earlier.

Area forecast discussion, Dec 9, 3:03 PM CST, 30 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE AMARILLO TX
303 PM CST SUN DEC 9 2007

.DISCUSSION...
VERY TRICKY FORECAST THIS PACKAGE AS FAR AS TEMPS AND PRECIP ARE
CONCERNED. MODELS FORECASTING WARM AIR ADVECTION INTO THE PANHANDLES
MONDAY AND MONDAY NIGHT WITH PRECIP CHANGING OVER TO LIQUID BY MONDAY
AFTERNOON. SHALLOW MODIFIED CANADIAN AIRMASS IN PLACE AT THE SURFACE
BELOW 850 MBS ACROSS THE FORECAST AREA WITH DEEP LAYER OF WARM AND
MOIST AIR BETWEEN 850 AND 700 MBS. ALL INDICATIONS POINT TO A
FREEZING RAIN AND/OR SLEET EPISODE WITH LITTLE IN THE WAY OF SNOW
EXCEPT FOR SOME FLURRIES MIXED IN. IF THE MODELS ARE CORRECT...THE
PANHANDLES WILL SEE A BRIEF WINDOW OF FREEZING RAIN AND SLEET LATE
TONIGHT AND MONDAY MORNING BEFORE CHANGING TO LIQUID AS THE COLD
AIRMASS ERODES FROM WEST TO EAST MONDAY AFTERNOON INTO TUESDAY AS
TEMPS RISE ABOVE FREEZING. A REINFORCING SHOT OF COLDER AIR IS
FORECASTED TO ARRIVE IN THE FORECAST AREA BY LATE MONDAY NIGHT INTO
TUESDAY. HOWEVER...MODELS KEEPING TEMPS ABOVE FREEZING DURING THIS
TIME AND THEN DROPS TEMPS BELOW FREEZING BY TUESDAY NIGHT AFTER MOST
OF THE MOISTURE HAS BEEN SCOURED OUT TO THE EAST. A LOT TO
CONSIDER...ALTHOUGH GOING WITH THE SOLUTION THAT THE MODELS NOT
HANDLING THE SHALLOWNESS OF THE COLD AIR DUE TO VERTICAL RESOLUTION
AND DECIDED TO UNDERCUT NUMERICAL MOS GUIDANCE AT LEAST THROUGH
TUESDAY. WITH THIS IN MIND...WILL CALL FOR MAINLY A FREEZING RAIN AND
SLEET EVENT THROUGH MONDAY NIGHT WITH THE PRECIP THEN TRANSITIONING
TO SNOW TUESDAY AND TUESDAY NIGHT AS THE REINFORCING COLD AIRMASS
PUSHES INTO THE FORECAST AREA AND COLD LAYER AT THE SURFACE DEEPENS.

WITH THE WARM LAYER ABOVE 850 MBS EXPERIENCING SOUTHERLY
WINDS...MODELS FORECASTING SOUTHERLY WINDS AT THE SURFACE TONIGHT
THROUGH TUESDAY AHEAD OF THE NEXT SHOT OF COLDER AIR. FEEL THAT WINDS
WILL REMAIN IN AN UPSLOPE COMPONENT BETWEEN NORTHEAST AND SOUTHEAST
AT THE SURFACE AND HAVE DISREGARDED THE MODEL WIND FORECAST.
CONFIDENCE INCREASING ABOUT A MIX OF FREEZING AND FROZEN PRECIP
MONDAY AND MONDAY NIGHT...SO DECIDED TO UPGRADE THE WINTER STORM
WATCH TO A WARNING FOR THE ENTIRE FORECAST AREA. DUE TO LACK OF
CONFIDENCE IN THE TUESDAY PERIOD...DECIDED TO LEAVE WINTER STORM
WATCH ALONE FOR NOW. CONCERNED ABOUT FREEZING AND FROZEN PRECIP
CAUSING PROBLEMS AFTER 06Z MONDAY AND...WITH TOMORROW BEING A WEEKDAY
AND OUR CUSTOMERS GOING BACK TO WORK AND SCHOOL...DECIDED TO BEGIN
THE WARNING AS EARLY AS 06Z MONDAY TO COVER ANY ICING PROBLEMS THAT
MAY OCCUR TONIGHT. STILL FEEL THAT THE BULK OF THE PRECIP WILL BE
MONDAY AND MONDAY NIGHT AS THE SOUTHERN STREAM SYSTEM LIFTS NORTH AND
EAST TOWARDS THE PANHANDLES.

WILL ALSO CALL FOR AREAS OF FOG TONIGHT AS EVAPORATIONAL COOLING
TAKES PLACE AND TEMPS FALL INTO THE TEENS AND LOWER 20S. MEDIUM RANGE
MODELS NOW BACKING OFF ON SLOWER TIMING OF THE UPPER SYSTEM PUSHING
OUT OF THE PANHANDLES. WILL HOLD ON TO SOME LINGERING PRECIP EARLY
WEDNESDAY IN THE SOUTHEAST SECTIONS...HOWEVER SHOULD SEE DRIER AIR
AND DECREASING CLOUDINESS WORKING FROM WEST TO EAST BY WEDNESDAY
AFTERNOON. DRIER WEDNESDAY NIGHT INTO THURSDAY NIGHT BEFORE A
NORTHERN STREAM UPPER TROUGH DROPS SOUTHEAST OUT OF THE ROCKIES AND
APPROACHES THE PANHANDLES FRIDAY. ANOTHER COLD FRONT PROGGED TO PUSH
ACROSS THE FORECAST AREA WEDNESDAY NIGHT AND THURSDAY HELPING TO
REINFORCE THE COLD AIR ALREADY IN PLACE. INCREASING CLOUDINESS LATE
THURSDAY INTO FRIDAY AS THE UPPER TROUGH APPROACHES FROM THE
NORTHWEST. DECIDED TO INTRODUCE SOME LOW END SLIGHT CHANCE POPS
FRIDAY IN THE EXTREME WESTERN TX PANHANDLE NEAR THE STATE LINE AS
SOME STRONG VORT ENERGY TRACKS SOUTH AND EAST FROM THE SOUTHERN AND
CENTRAL ROCKIES. DEPENDING ON AVAILABLE LOW AND MID LEVEL MOISTURE IN
PLACE/ASSOCIATED WITH THIS SYSTEM OR LACK THEREOF...LATER SHIFTS MAY
NEED TO ADJUST POPS LATE THIS WEEK. ADJUSTED TEMPS AND SKY COVER IN
THE LATER PERIODS...OTHERWISE TRIED TO MAINTAIN CONSISTENCY AND
CONTINUITY WITH PREVIOUS FORECAST AND GRIDS.

SCHNEIDER

&&

.PRELIMINARY POINT TEMPS/POPS...
AMARILLO TX                21  29  24  32  23 /  20  90  80  50  10
BEAVER OK                  14  28  25  32  20 /  20  80  80  60  20
BOISE CITY OK              17  32  22  32  19 /  20  80  80  50  20
BORGER TX                  23  28  26  33  24 /  20  80  80  50  20
BOYS RANCH TX              22  31  25  33  25 /  20  80  80  50  10
CANYON TX                  20  30  23  33  25 /  30  90  80  50  10
CLARENDON TX               22  30  26  33  24 /  30  80  80  60  10
DALHART TX                 19  31  23  33  20 /  20  80  80  50  20
GUYMON OK                  18  27  24  33  21 /  20  80  90  50  20
HEREFORD TX                21  29  24  35  25 /  30  90  80  50  10
LIPSCOMB TX                22  28  26  33  24 /  20  80  80  60  20
PAMPA TX                   23  27  26  32  22 /  20  80  80  60  20
SHAMROCK TX                23  30  27  32  25 /  40  80  80  60  20
WELLINGTON TX              25  31  29  33  27 /  40  80  80  60  20

&&

.AMA WATCHES/WARNINGS/ADVISORIES...
TX...WINTER STORM WARNING FROM MIDNIGHT TONIGHT TO 6 AM CST TUESDAY
     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.

     WINTER STORM WATCH FROM TUESDAY MORNING THROUGH TUESDAY
     AFTERNOON 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.

OK...WINTER STORM WARNING FROM MIDNIGHT TONIGHT TO 6 AM CST TUESDAY
     FOR THE FOLLOWING ZONES: BEAVER...CIMARRON...TEXAS.

     WINTER STORM WATCH FROM TUESDAY MORNING THROUGH TUESDAY
     AFTERNOON FOR THE FOLLOWING ZONES: BEAVER...CIMARRON...
     TEXAS.

&&

11/24
Hazardous weather outlook, Dec 9, 3:33 PM CST, 0 minutes before
TEXAS/OKLAHOMA PANHANDLES HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE AMARILLO TX
333 PM CST SUN DEC 9 2007

OKZ001>003-TXZ001>020-101200-
ARMSTRONG-BEAVER-CARSON-CIMARRON-COLLINGSWORTH-DALLAM-DEAF SMITH-
DONLEY-GRAY-HANSFORD-HARTLEY-HEMPHILL-HUTCHINSON-LIPSCOMB-MOORE-
OCHILTREE-OLDHAM-POTTER-RANDALL-ROBERTS-SHERMAN-TEXAS-WHEELER-
333 PM CST SUN DEC 9 2007

THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE TEXAS AND OKLAHOMA
PANHANDLES.

.DAY ONE...

LIGHT FREEZING RAIN IS EXPECTED TO DEVELOP TONIGHT ACROSS THE
SOUTHERN ONE HALF OF THE TEXAS PANHANDLE...SPREADING AREAWIDE LATE.
A WINTER STORM WARNING IS IN EFFECT BEGINNING AT MIDNIGHT.  ICE
ACCUMULATIONS ARE EXPECTED TO REMAIN LIGHT THROUGH TONIGHT.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY...

A WINTER STORM WARNING IS IN EFFECT UNTIL 6 AM TUESDAY MORNING...
FOLLOWED BY A WINTER STORM WATCH ON TUESDAY. FREEZING RAIN...
OCCASIONALLY MIXED WITH SLEET AND SNOW...IS EXPECTED MONDAY AND
MONDAY NIGHT. IT APPEARS THAT THERE COULD BE SIGNIFICANT ICE
ACCUMULATIONS OF GREATER THAN ONE QUARTER OF AN INCH MONDAY AND
MONDAY NIGHT...FOLLOWED BY SNOW BECOMING MORE PREVALENT ON TUESDAY.
THIS SNOW MAY LINGER INTO WEDNESDAY ACROSS THE EAST. THIS COULD
RESULT IN HAZARDOUS DRIVING CONDITIONS AND DOWNED POWER LINES.

.SPOTTER INFORMATION STATEMENT...

SPOTTERS ARE REQUESTED IN REPORT ICE ACCUMULATIONS TO THE NATIONAL
WEATHER SERVICE IN AMARILLO.

JOHNSON

In the hours before

Local storm report, Dec 9, 9:53 AM CST, 5 hours 40 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AMARILLO TX
953 AM CST SUN DEC 09 2007

..TIME..    ...EVENT...     ...CITY LOCATION...      ...LAT.LON...
..DATE..    ....MAG....     ..COUNTY LOCATION.. ST.. ...SOURCE....
            ..REMARKS..

0950 AM     FREEZING RAIN    2 NW CANYON             35.00N 101.95W
12/09/2007  M0.04 INCH       RANDALL            TX   NWS EMPLOYEE

&&

EVENT NUMBER 00095

KJS
Local storm report, Dec 9, 10:01 AM CST, 5 hours 32 minutes before
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE AMARILLO TX
1001 AM CST SUN DEC 09 2007

..TIME..    ...EVENT...     ...CITY LOCATION...      ...LAT.LON...
..DATE..    ....MAG....     ..COUNTY LOCATION.. ST.. ...SOURCE....
            ..REMARKS..

0930 PM     FREEZING RAIN    DALHART                 36.06N 102.52W
12/08/2007  E0.13 INCH       DALLAM             TX   COUNTY OFFICIAL

            FREEZING RAIN AND SLEET REPORTED ACROSS DALHART

0930 PM     FREEZING RAIN    1 S DALHART             36.05N 102.52W
12/08/2007  E0.13 INCH       HARTLEY            TX   COUNTY OFFICIAL

            FREEZING RAIN AND SLEET REPROTED ACROSS DALHART

1230 AM     FREEZING RAIN    VEGA                    35.25N 102.43W
12/09/2007  E0.13 INCH       OLDHAM             TX   LAW ENFORCEMENT

            ROADS ARE QUITE ICY. ACCUMULATIONS OF ICE ON MOST
            SURFACES. I 40 SHUT DOWN DUE TO ACCIDENTS.

0130 AM     FREEZING RAIN    HEREFORD                34.82N 102.40W
12/09/2007  E0.05 INCH       DEAF SMITH         TX   LAW ENFORCEMENT

            WINDSHIELDS AND ELEVATED SURFACES HAD A MODEST COAT OF
            ICE AND ROADS WERE PRETTY SLICK

0219 AM     FREEZING RAIN    AMARILLO                35.20N 101.82W
12/09/2007  E0.20 INCH       POTTER             TX   NWS EMPLOYEE

            NWS EMPLOYEE IN DOWNTOWN AMARILLO REPORTED FREEZING
            RAIN...SLEET AND LIGHT SNOW FALLING. INDICATED THERE WAS
            ALMOST ONE QUARTER INCH OF ICE AND SLEET ON CAR...WITH
            ANOTHER ONE QUARTER INCH OF SNOW.

0230 AM     FREEZING RAIN    6 SW AMARILLO           35.14N 101.89W
12/09/2007  E0.10 INCH       RANDALL            TX   NWS EMPLOYEE

            THIN COATING OF ICE ON ROAD SURFACE AND TREES.

0300 AM     FREEZING RAIN    8 E AMARILLO            35.20N 101.68W
12/09/2007  M0.20 INCH       POTTER             TX   NWS OFFICE

            MEASURED ICE ACCUMULATION ON A FEW SURFACES AND FOUND
            THE MAX ICE ACCUMULATION TO BE TWO TENTHS OF AN INCH.

0300 AM     FREEZING RAIN    GUYMON                  36.69N 101.48W
12/09/2007  E0.05 INCH       TEXAS              OK   LAW ENFORCEMENT

            SOME ICY ROADS BUT ICE WAS MAINLY ON ELEVATED SURFACES

0300 AM     FREEZING RAIN    PAMPA                   35.55N 100.96W
12/09/2007  E0.10 INCH       GRAY               TX   LAW ENFORCEMENT

            ICE ACCUMULATIONS ON ROADS AND ELEVATED SURFACES

0330 AM     FREEZING RAIN    BEAVER                  36.81N 100.52W
12/09/2007  E0.10 INCH       BEAVER             OK   LAW ENFORCEMENT

            ICE ACCUMULATIONS TREES AND OTHER ELEVATED SURFACES

0330 AM     FREEZING RAIN    5 E CLARENDON           34.94N 100.80W
12/09/2007  E0.10 INCH       DONLEY             TX   LAW ENFORCEMENT

            ROADS SLICK EAST OF CLARENDON

0400 AM     FREEZING RAIN    BOISE CITY              36.73N 102.51W
12/09/2007  E0.05 INCH       CIMARRON           OK   LAW ENFORCEMENT

            ICING WAS MAINLY CONFINED TO TREES AND ELEVATED
            SURFACES

0545 AM     FREEZING RAIN    CLAUDE                  35.11N 101.36W
12/09/2007  E0.05 INCH       ARMSTRONG          TX   LAW ENFORCEMENT

0615 AM     FREEZING RAIN    STRATFORD               36.34N 102.07W
12/09/2007  E0.05 INCH       SHERMAN            TX   LAW ENFORCEMENT

            MINOR ICE ACCUMULATIONS ON ALL SURFACES. DUSTING OF
            SNOW ON TOP.

0615 AM     FREEZING RAIN    DUMAS                   35.86N 101.97W
12/09/2007  E0.05 INCH       MOORE              TX   LAW ENFORCEMENT

            MINOR ICE ACCUMULATIONS

0705 AM     FREEZING RAIN    PERRYTON                36.39N 100.80W
12/09/2007  E0.20 INCH       OCHILTREE          TX   LAW ENFORCEMENT

            SLIGHTLY LESS THAN ONE QUARTER OF AN INCH OF FREEZING
            RAIN

0710 AM     FREEZING RAIN    SPEARMAN                36.20N 101.19W
12/09/2007  E0.05 INCH       HANSFORD           TX   LAW ENFORCEMENT

0845 AM     SLEET            LIPSCOMB                36.23N 100.27W
12/09/2007  E0.50 INCH       LIPSCOMB           TX   LAW ENFORCEMENT

0845 AM     FREEZING RAIN    WELLINGTON              34.85N 100.21W
12/09/2007  E0.05 INCH       COLLINGSWORTH      TX   LAW ENFORCEMENT

            ELEVATED SURFACES ARE ICY

0858 AM     FREEZING RAIN    WHEELER                 35.44N 100.28W
12/09/2007  E0.05 INCH       WHEELER            TX   LAW ENFORCEMENT

            ICE ON ROADS OF UNKNOWN DEPTH

0950 AM     FREEZING RAIN    2 NW CANYON             35.00N 101.95W
12/09/2007  M0.04 INCH       RANDALL            TX   NWS EMPLOYEE

&&

EVENT NUMBER 00096 00097 00098 00099 00100 00101 00102 00103 00104
00105 00106 00107 00108 00109 00110 00111 00112 00113 00114 00115
00095

KJS

Nearby

Winter Storm Warnings in Texas, 2007Winter Storm Warnings in Oklahoma, 2007Every winter storm warning in 2007

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.