Alert archive / Colorado / Winter Storm Watches in 2011

Winter Storm Watch 21, NWS Pueblo, CO

December 20, 201111 counties in Colorado

NWS Pueblo, CO issued this winter storm watch at Dec 20, 2011, 2:58 PM MST for 11 counties in Colorado. It took effect at Dec 21, 2011, 5:00 PM MST. It was in force for .

The area

The counties it named.

The facts

Issued
Dec 20, 2011, 2:58 PM MST (21:58 UTC)
In effect from
Dec 21, 2011, 5:00 PM MST
Expired
Dec 21, 2011, 3:44 AM MST
In force
Issued by
NWS Pueblo, CO

Counties Alamosa County, CO, Chaffee County, CO, Costilla County, CO, Custer County, CO, El Paso County, CO, Fremont County, CO, Huerfano County, CO, Las Animas County, CO, Pueblo County, CO, Saguache County, CO, Teller County, CO

The radar

The Pueblo radar (KPUX), 101 km from the middle of the area, began a volume at 21:58 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

Denver, CO (KDNR), launched 12:00Z, 10.0 hours before the alert went out and 262 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, Denver, CO at 12:00Z on 2011-12-20Temperature 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 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Denver, CO at 12:00Z on 2011-12-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 3 square meters per square second.193958Sfc1 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
782 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
3 m²/s²
0-3 km storm-relative helicity
85 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.

983 
WWUS45 KPUB 202158
WSWPUB

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE PUEBLO CO
258 PM MST TUE DEC 20 2011

COZ081-082-084-210400-
/O.NEW.KPUB.WS.A.0021.111222T0000Z-111223T0000Z/
TELLER COUNTY/RAMPART RANGE ABOVE 7500 FT/PIKES PEAK BETWEEN
7500 AND 11000 FT-PIKES PEAK ABOVE 11000 FT-
NORTHERN EL PASO COUNTY/MONUMENT RIDGE/RAMPART RANGE BELOW
7500 FT-
INCLUDING...WOODLAND PARK...PIKES PEAK...BLACK FOREST...
AIR FORCE ACADEMY
258 PM MST TUE DEC 20 2011

...WINTER STORM WATCH IN EFFECT FROM WEDNESDAY AFTERNOON THROUGH
THURSDAY AFTERNOON...

THE NATIONAL WEATHER SERVICE IN PUEBLO HAS ISSUED A WINTER STORM
WATCH...WHICH IS IN EFFECT FROM WEDNESDAY AFTERNOON THROUGH
THURSDAY AFTERNOON. 

* LOCATION...TELLER COUNTY AND NORTHERN EL PASO COUNTY. 

* CAUSE AND TIMING...A WINTER STORM SYSTEM WILL MOVE ACROSS THE
  ROCKIES WEDNESDAY NIGHT AND THURSDAY...AS ANOTHER COLD FRONT
  MOVES ACROSS THE EASTERN PLAINS. THE COMBINATION OF THESE TWO
  SYSTEMS WILL BRING LIGHT TO MODERATE SNOWFALL TO THE EASTERN
  MOUNTAINS AND IMMEDIATE ADJACENT PLAINS THROUGH THURSDAY
  AFERNOON. 

* SNOW ACCUMULATION...ACCUMULATIONS OF 6 TO 10 INCHES WILL BE
  POSSIBLE ACROSS TELLER COUNTY...WITH 4 TO 8 INCHES POSSIBLE
  ACROSS NORTHERN EL PASO COUNTY.

* WIND...NORTH WINDS 15 TO 30 MPH. 

* IMPACT...TRAVEL MAY BECOME HAZARDOUS WITH SNOW PACKED AND ICY
  ROADS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WATCH IS ISSUED WHEN THERE IS THE POTENTIAL FOR
SEVERE WINTER WEATHER CONDITIONS TO DEVELOP.

WINTER STORMS MAY HAVE STRONG WINDS AND REDUCED VISIBILITY DUE TO
HEAVY SNOWFALL AND BLOWING SNOW. SNOW ACCUMULATIONS OF OVER
6 INCHES ACROSS THE PLAINS AND HIGH VALLEYS OR OVER 8 INCHES IN
THE MOUNTAINS MAY OCCUR. IF YOU ARE PLANNING TO TRAVEL IN THE
WATCH AREA DURING THE TIME OF THE WATCH...LISTEN TO THE LATEST
WEATHER FORECAST AND CONSIDER TRAVELING AT ANOTHER TIME OR BY
ANOTHER ROUTE. IF YOU MUST TRAVEL IN OR THROUGH THE WATCH AREA
DURING THE TIME OF THE WATCH...TAKE ALONG A WINTER SURVIVAL KIT.

&&

$$

COZ072>075-078>080-087-088-210400-
/O.NEW.KPUB.WS.A.0021.111222T0400Z-111223T0500Z/
NORTHERN SANGRE DE CRISTO MOUNTAINS BETWEEN 8500 AND 11000 FT-
NORTHERN SANGRE DE CRISTO MOUNTAINS ABOVE 11000 FEET-
SOUTHERN SANGRE DE CRISTO MOUNTAINS BETWEEN 7500 AND 11000 FT-
SOUTHERN SANGRE DE CRISTO MOUNTAINS ABOVE 11000 FT-
WET MOUNTAIN VALLEY BELOW 8500 FEET-
WET MOUNTAINS BETWEEN 6300 AND 10000 FT-
WET MOUNTAINS ABOVE 10000 FT-
WALSENBURG VICINITY/UPPER HUERFANO RIVER BASIN BELOW 7500 FT-
TRINIDAD VICINITY/WESTERN LAS ANIMAS COUNTY BELOW 7500 FT-
INCLUDING...LA VETA PASS...PONCHA PASS...BLANCA PEAK...CUCHARA...
STONEWALL...WESTON...SPANISH PEAKS...SILVER CLIFF...WESTCLIFFE...
RYE...GREENHORN MTN...WALSENBURG...TRINIDAD
258 PM MST TUE DEC 20 2011

...WINTER STORM WATCH IN EFFECT FROM WEDNESDAY EVENING THROUGH
THURSDAY EVENING...

THE NATIONAL WEATHER SERVICE IN PUEBLO HAS ISSUED A WINTER STORM
WATCH...WHICH IS IN EFFECT FROM WEDNESDAY EVENING THROUGH
THURSDAY EVENING. 


* LOCATION...THE WET MOUNTAINS...THE SANGRE DE CRISTO
  MOUNTAINS...THE WET MOUNTAIN VALLEY AND THE SOUTHERN I-25
  CORRIDOR...INCLUDING WALSENBURG AND TRINIDAD.

* CAUSE AND TIMING...A WINTER STORM SYSTEM WILL MOVE ACROSS THE
  ROCKIES WEDNESDAY NIGHT AND THURSDAY...AS ANOTHER COLD FRONT
  MOVES ACROSS THE EASTERN PLAINS. THE COMBINATION OF THESE TWO
  SYSTEMS WILL BRING LIGHT TO MODERATE SNOWFALL TO THE EASTERN
  MOUNTAINS AND IMMEDIATE ADJACENT PLAINS THROUGH THURSDAY
  AFERNOON. 

* SNOW ACCUMULATION...ACCUMULATIONS OF 6 TO 12 INCHES WILL BE
  POSSIBLE ACROSS THE HIGHER ELEVATIONS...WITH 4 TO 8 INCHES
  POSSIBLE OVER THE LOWER AREAS.

* WIND...NORTH WINDS 15 TO 30 MPH. 

* IMPACT...TRAVEL MAY BECOME HAZARDOUS WITH SNOW PACKED AND ICY
  ROADS.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WATCH IS ISSUED WHEN THERE IS THE POTENTIAL FOR
SEVERE WINTER WEATHER CONDITIONS TO DEVELOP.

WINTER STORMS MAY HAVE STRONG WINDS AND REDUCED VISIBILITY DUE TO
HEAVY SNOWFALL AND BLOWING SNOW. SNOW ACCUMULATIONS OF OVER
6 INCHES ACROSS THE PLAINS AND HIGH VALLEYS OR OVER 8 INCHES IN
THE MOUNTAINS MAY OCCUR. IF YOU ARE PLANNING TO TRAVEL IN THE
WATCH AREA DURING THE TIME OF THE WATCH...LISTEN TO THE LATEST
WEATHER FORECAST AND CONSIDER TRAVELING AT ANOTHER TIME OR BY
ANOTHER ROUTE. IF YOU MUST TRAVEL IN OR THROUGH THE WATCH AREA
DURING THE TIME OF THE WATCH...TAKE ALONG A WINTER SURVIVAL KIT.

&&

$$
2 follow-up statements
379 
WWUS45 KPUB 210341
WSWPUB

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE PUEBLO CO
841 PM MST TUE DEC 20 2011

COZ081-082-084-211200-
/O.CON.KPUB.WS.A.0021.111222T0000Z-111223T0000Z/
TELLER COUNTY/RAMPART RANGE ABOVE 7500 FT/PIKES PEAK BETWEEN
7500 AND 11000 FT-PIKES PEAK ABOVE 11000 FT-
NORTHERN EL PASO COUNTY/MONUMENT RIDGE/RAMPART RANGE BELOW
7500 FT-
INCLUDING...WOODLAND PARK...PIKES PEAK...BLACK FOREST...
AIR FORCE ACADEMY
841 PM MST TUE DEC 20 2011

...WINTER STORM WATCH REMAINS IN EFFECT FROM WEDNESDAY AFTERNOON
THROUGH THURSDAY AFTERNOON...

A WINTER STORM WATCH REMAINS IN EFFECT FROM WEDNESDAY AFTERNOON
THROUGH THURSDAY AFTERNOON. 

* LOCATION...TELLER COUNTY AND NORTHERN EL PASO COUNTY.

* CAUSE AND TIMING...A WINTER STORM SYSTEM WILL MOVE ACROSS THE
  ROCKIES WEDNESDAY NIGHT AND THURSDAY...SENDING ANOTHER COLD
  FRONT THROUGH THE EASTERN PLAINS. THIS WILL PRODUCE ANOTHER SHOT
  OF LIGHT TO MODERATE SNOWFALL TO THE EASTERN MOUNTAINS AND
  IMMEDIATE ADJACENT PLAINS THROUGH THURSDAY AFTERNOON.

* SNOW ACCUMULATION...ACCUMULATIONS OF 6 TO 10 INCHES WILL BE 
  POSSIBLE ACROSS TELLER COUNTY...WITH 4 TO 8 INCHES POSSIBLE 
  ACROSS NORTHERN EL PASO COUNTY. 

* WIND...NORTH WINDS 15 TO 30 MPH.

* IMPACT...TRAVEL MAY BECOME HAZARDOUS WITH SNOW PACKED AND ICY 
  ROADS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WATCH IS ISSUED WHEN THERE IS THE POTENTIAL FOR
SEVERE WINTER WEATHER CONDITIONS TO DEVELOP.

WINTER STORMS MAY HAVE STRONG WINDS AND REDUCED VISIBILITY DUE TO
HEAVY SNOWFALL AND BLOWING SNOW. SNOW ACCUMULATIONS OF OVER
6 INCHES ACROSS THE PLAINS AND HIGH VALLEYS OR OVER 8 INCHES IN
THE MOUNTAINS MAY OCCUR. IF YOU ARE PLANNING TO TRAVEL IN THE
WATCH AREA DURING THE TIME OF THE WATCH...LISTEN TO THE LATEST
WEATHER FORECAST AND CONSIDER TRAVELING AT ANOTHER TIME OR BY
ANOTHER ROUTE. IF YOU MUST TRAVEL IN OR THROUGH THE WATCH AREA
DURING THE TIME OF THE WATCH...TAKE ALONG A WINTER SURVIVAL KIT.

&&

$$

COZ072>075-078>080-087-088-211200-
/O.CON.KPUB.WS.A.0021.111222T0400Z-111223T0500Z/
NORTHERN SANGRE DE CRISTO MOUNTAINS BETWEEN 8500 AND 11000 FT-
NORTHERN SANGRE DE CRISTO MOUNTAINS ABOVE 11000 FEET-
SOUTHERN SANGRE DE CRISTO MOUNTAINS BETWEEN 7500 AND 11000 FT-
SOUTHERN SANGRE DE CRISTO MOUNTAINS ABOVE 11000 FT-
WET MOUNTAIN VALLEY BELOW 8500 FEET-
WET MOUNTAINS BETWEEN 6300 AND 10000 FT-
WET MOUNTAINS ABOVE 10000 FT-
WALSENBURG VICINITY/UPPER HUERFANO RIVER BASIN BELOW 7500 FT-
TRINIDAD VICINITY/WESTERN LAS ANIMAS COUNTY BELOW 7500 FT-
INCLUDING...LA VETA PASS...PONCHA PASS...BLANCA PEAK...CUCHARA...
STONEWALL...WESTON...SPANISH PEAKS...SILVER CLIFF...WESTCLIFFE...
RYE...GREENHORN MTN...WALSENBURG...TRINIDAD
841 PM MST TUE DEC 20 2011

...WINTER STORM WATCH REMAINS IN EFFECT FROM WEDNESDAY EVENING
THROUGH THURSDAY EVENING...

A WINTER STORM WATCH REMAINS IN EFFECT FROM WEDNESDAY EVENING
THROUGH THURSDAY EVENING. 

* LOCATION...THE WET MOUNTAINS...THE SANGRE DE CRISTO 
  MOUNTAINS...THE WET MOUNTAIN VALLEY AND THE SOUTHERN I-25 
  CORRIDOR...INCLUDING WALSENBURG AND TRINIDAD. 

* CAUSE AND TIMING...A WINTER STORM SYSTEM WILL MOVE ACROSS THE
  ROCKIES WEDNESDAY NIGHT AND THURSDAY...SENDING ANOTHER COLD
  FRONT THROUGH THE EASTERN PLAINS. THIS WILL PRODUCE ANOTHER SHOT
  OF LIGHT TO MODERATE SNOWFALL TO THE EASTERN MOUNTAINS AND
  IMMEDIATE ADJACENT PLAINS THROUGH THURSDAY AFTERNOON.

* SNOW ACCUMULATION...ACCUMULATIONS OF 6 TO 12 INCHES WILL BE 
  POSSIBLE ACROSS THE HIGHER ELEVATIONS...WITH 4 TO 8 INCHES 
  POSSIBLE OVER THE LOWER AREAS. 

* WIND...NORTH WINDS 15 TO 30 MPH.

* IMPACT...TRAVEL MAY BECOME HAZARDOUS WITH SNOW PACKED AND ICY 
  ROADS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WATCH IS ISSUED WHEN THERE IS THE POTENTIAL FOR
SEVERE WINTER WEATHER CONDITIONS TO DEVELOP.

WINTER STORMS MAY HAVE STRONG WINDS AND REDUCED VISIBILITY DUE TO
HEAVY SNOWFALL AND BLOWING SNOW. SNOW ACCUMULATIONS OF OVER
6 INCHES ACROSS THE PLAINS AND HIGH VALLEYS OR OVER 8 INCHES IN
THE MOUNTAINS MAY OCCUR. IF YOU ARE PLANNING TO TRAVEL IN THE
WATCH AREA DURING THE TIME OF THE WATCH...LISTEN TO THE LATEST
WEATHER FORECAST AND CONSIDER TRAVELING AT ANOTHER TIME OR BY
ANOTHER ROUTE. IF YOU MUST TRAVEL IN OR THROUGH THE WATCH AREA
DURING THE TIME OF THE WATCH...TAKE ALONG A WINTER SURVIVAL KIT.

&&

$$
731 
WWUS45 KPUB 211044
WSWPUB

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE PUEBLO CO
344 AM MST WED DEC 21 2011

COZ081-082-084-211645-
/O.UPG.KPUB.WS.A.0021.111222T0000Z-111223T0000Z/
/O.NEW.KPUB.WW.Y.0044.111222T0000Z-111223T0000Z/
TELLER COUNTY/RAMPART RANGE ABOVE 7500 FT/PIKES PEAK BETWEEN
7500 AND 11000 FT-PIKES PEAK ABOVE 11000 FT-
NORTHERN EL PASO COUNTY/MONUMENT RIDGE/RAMPART RANGE BELOW
7500 FT-
INCLUDING...WOODLAND PARK...PIKES PEAK...BLACK FOREST...
AIR FORCE ACADEMY
344 AM MST WED DEC 21 2011

...WINTER WEATHER ADVISORY IN EFFECT FROM 5 PM THIS AFTERNOON TO
5 PM MST THURSDAY...

THE NATIONAL WEATHER SERVICE IN PUEBLO HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT
FROM 5 PM THIS AFTERNOON TO 5 PM MST THURSDAY. THE WINTER STORM
WATCH IS NO LONGER IN EFFECT.

* LOCATION...TELLER COUNTY AND NORTHERN EL PASO COUNTY.

* CAUSE AND TIMING...A WINTER STORM SYSTEM WILL MOVE ACROSS THE
  ROCKIES TONIGHT AND THURSDAY...SENDING A COLD FRONT THROUGH THE
  EASTERN PLAINS. THIS WILL PRODUCE A PERIOD OF LIGHT TO MODERATE
  SNOWFALL OVER THE PIKES PEAK REGION AND PALMER DIVIDE.

* SNOW ACCUMULATION...ACCUMULATIONS OF 6 TO 12 INCHES ACROSS
  TELLER COUNTY...WITH 5 TO 9 INCHES ACROSS NORTHERN EL PASO
  COUNTY.

* WIND...NORTH WINDS 15 TO 30 MPH.

* IMPACT...TRAVEL MAY BECOME HAZARDOUS WITH SNOW PACKED AND ICY
  ROADS. HIGHWAY 24 FROM COLORADO SPRINGS TO WOODLAND PARK AND
  INTERSTATE 25 FROM COLORADO SPRINGS TO DENVER WILL LIKELY BE
  SNOW COVERED AND ICY DURING RUSH HOUR THURSDAY MORNING. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF YOU ARE PLANNING TO TRAVEL IN THE ADVISORY AREA DURING THE
TIME OF THE ADVISORY...LISTEN TO THE LATEST WEATHER FORECAST AND
CONSIDER TRAVELING AT ANOTHER TIME OR BY ANOTHER ROUTE.

&&

$$

COZ072>075-078>080-087-088-211645-
/O.UPG.KPUB.WS.A.0021.111222T0400Z-111223T0500Z/
/O.NEW.KPUB.WW.Y.0044.111222T0500Z-111223T0500Z/
NORTHERN SANGRE DE CRISTO MOUNTAINS BETWEEN 8500 AND 11000 FT-
NORTHERN SANGRE DE CRISTO MOUNTAINS ABOVE 11000 FEET-
SOUTHERN SANGRE DE CRISTO MOUNTAINS BETWEEN 7500 AND 11000 FT-
SOUTHERN SANGRE DE CRISTO MOUNTAINS ABOVE 11000 FT-
WET MOUNTAIN VALLEY BELOW 8500 FEET-
WET MOUNTAINS BETWEEN 6300 AND 10000 FT-
WET MOUNTAINS ABOVE 10000 FT-
WALSENBURG VICINITY/UPPER HUERFANO RIVER BASIN BELOW 7500 FT-
TRINIDAD VICINITY/WESTERN LAS ANIMAS COUNTY BELOW 7500 FT-
INCLUDING...LA VETA PASS...PONCHA PASS...BLANCA PEAK...CUCHARA...
STONEWALL...WESTON...SPANISH PEAKS...SILVER CLIFF...WESTCLIFFE...
RYE...GREENHORN MTN...WALSENBURG...TRINIDAD
344 AM MST WED DEC 21 2011

...WINTER WEATHER ADVISORY IN EFFECT FROM 10 PM THIS EVENING TO
10 PM MST THURSDAY...

THE NATIONAL WEATHER SERVICE IN PUEBLO HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT
FROM 10 PM THIS EVENING TO 10 PM MST THURSDAY. THE WINTER STORM
WATCH IS NO LONGER IN EFFECT.

* LOCATION...THE WET MOUNTAINS...THE SANGRE DE CRISTO 
  MOUNTAINS...THE WET MOUNTAIN VALLEY AND THE SOUTHERN I-25 
  CORRIDOR...INCLUDING WALSENBURG AND TRINIDAD. 

* CAUSE AND TIMING...A WINTER STORM SYSTEM WILL MOVE ACROSS THE
  ROCKIES TONIGHT AND THURSDAY...SENDING A COLD FRONT THROUGH THE
  EASTERN PLAINS. THIS WILL PRODUCE A PERIOD OF LIGHT TO MODERATE
  SNOWFALL OVER THE EASTERN MOUNTAINS AND ADJACENT PLAINS.

* SNOW ACCUMULATION...ACCUMULATIONS OF 6 TO 12 INCHES ACROSS THE
  MOUNTAINS...WITH 4 TO 8 INCHES OVER THE LOWER ELEVATIONS ALONG
  INTERSTATE 25 AND ACROSS THE WET MOUNTAIN VALLEY.

* WIND...NORTH WINDS 15 TO 30 MPH.

* IMPACT...TRAVEL MAY BECOME HAZARDOUS WITH SNOW PACKED AND ICY 
  ROADS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF YOU ARE PLANNING TO TRAVEL IN THE ADVISORY AREA DURING THE
TIME OF THE ADVISORY...LISTEN TO THE LATEST WEATHER FORECAST AND
CONSIDER TRAVELING AT ANOTHER TIME OR BY ANOTHER ROUTE.

&&

$$

COZ076-077-211645-
/O.NEW.KPUB.WW.Y.0044.111222T0500Z-111223T0500Z/
NORTHWESTERN FREMONT COUNTY ABOVE 8500 FT-
WESTERN/CENTRAL FREMONT COUNTY BELOW 8500 FT-
INCLUDING...COALDALE...COTOPAXI...HILLSIDE...HOWARD...SWISSVALE...
TEXAS CREEK
344 AM MST WED DEC 21 2011

...WINTER WEATHER ADVISORY IN EFFECT FROM 10 PM THIS EVENING TO
10 PM MST THURSDAY...

THE NATIONAL WEATHER SERVICE IN PUEBLO HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT
FROM 10 PM THIS EVENING TO 10 PM MST THURSDAY.

* LOCATION...WESTERN AND CENTRAL FREMONT COUNTY. 

* CAUSE AND TIMING...A WINTER STORM SYSTEM WILL MOVE ACROSS THE
  ROCKIES TONIGHT AND THURSDAY...SENDING A COLD FRONT THROUGH THE
  EASTERN PLAINS. THIS WILL PRODUCE A PERIOD OF LIGHT TO MODERATE
  SNOWFALL OVER THE MUCH OF CENTRAL AND EASTERN COLORADO. 

* SNOW ACCUMULATION...4 TO 8 INCHES.

* WIND...NORTHEAST WINDS 10 TO 20 MPH. 

* IMPACT...TRAVEL MAY BECOME HAZARDOUS WITH SNOW PACKED AND ICY
  ROADS.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF YOU ARE PLANNING TO TRAVEL IN THE ADVISORY AREA DURING THE
TIME OF THE ADVISORY...LISTEN TO THE LATEST WEATHER FORECAST AND
CONSIDER TRAVELING AT ANOTHER TIME OR BY ANOTHER ROUTE.

&&

$$

COZ058-060-061-063-211645-
/O.NEW.KPUB.WW.Y.0044.111222T0500Z-111223T0500Z/
WESTERN MOSQUITO RANGE/EAST LAKE COUNTY ABOVE 11000 FT-
EASTERN SAWATCH MOUNTAINS ABOVE 11000 FT-
WESTERN CHAFFEE COUNTY BETWEEN 9000 AND 11000 FT-
WESTERN MOSQUITO RANGE/EAST CHAFFEE COUNTY ABOVE 9000 FT-
INCLUDING...CLIMAX...INDEPENDENCE PASS...MT ELBERT...MT MASSIVE...
GRANITE
344 AM MST WED DEC 21 2011

...WINTER WEATHER ADVISORY IN EFFECT FROM 10 PM THIS EVENING TO
10 PM MST THURSDAY...

THE NATIONAL WEATHER SERVICE IN PUEBLO HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT
FROM 10 PM THIS EVENING TO 10 PM MST THURSDAY.

* LOCATION...THE SAWATCH AND MOSQUITO MOUNTAIN RANGES IN CENTRAL
  COLORADO.

* CAUSE AND TIMING...A WINTER STORM SYSTEM WILL MOVE ACROSS THE
  ROCKIES TONIGHT AND THURSDAY...SENDING A COLD FRONT THROUGH THE
  EASTERN PLAINS. THIS WILL PRODUCE A PERIOD OF LIGHT TO MODERATE
  SNOWFALL OVER THE MUCH OF CENTRAL AND EASTERN COLORADO. 

* SNOW ACCUMULATION...6 TO 12 INCHES.

* WIND...NORTH 15 TO 30 MPH. 

* IMPACT...TRAVEL MAY BECOME HAZARDOUS WITH SNOW PACKED AND ICY
  ROADS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF YOU ARE PLANNING TO TRAVEL IN THE ADVISORY AREA DURING THE
TIME OF THE ADVISORY...LISTEN TO THE LATEST WEATHER FORECAST AND
CONSIDER TRAVELING AT ANOTHER TIME OR BY ANOTHER ROUTE.

&&

$$

Nearby

Winter Storm Watches in Colorado, 2011Every winter storm watch in 2011

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.