Winter Storm Watch 19, NWS Pueblo, CO

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PUEBLO CO
827 PM MST MON DEC 21 2009

.UPDATE...

NEW NAM A BIT FARTHER WEST AND STRONGER WITH THE STORM COMING IN.
BASED ON 18Z DATA SOURCES ALONG WITH 00Z NAM HAVE HOISTED
HIGHLIGHTS FOR THE C MTNS AND PALMER DIVIDE REGION
(ADVISORIES)...AND HAVE ALSO BUMPED THE WATCH OVER THE SAN JUANS
TO A WARNING. ALSO INCLUDED ADVISORIES FOR THE REST OF THE SW
MTNS.

NEW NAM SHOWS A MUCH BETTER UPSLOPE COMPONENT IN THE 700 MB FLOW
TOMORROW NIGHT INTO WED. WE WILL LIKELY NEED MORE HIGHLIGHTS FOR
THE REST OF THE PLAINS. WINDS ON THE PLAINS WILL BECOME AN ISSUE
THUR.

CATCH ME ON NWS CHAT IF YOU HAVE ANY Q. I WILL BE CURIOUS WITH
THE NEW 00Z GFS SOLUTIONS TO THIS SYSTEM.

/HODANISH

&&

&&

.PUB WATCHES/WARNINGS/ADVISORIES...
WINTER WEATHER ADVISORY FROM 8 PM TUESDAY TO 5 AM MST THURSDAY
FOR COZ058>061-081-082-084.

WINTER STORM WATCH FROM TUESDAY EVENING THROUGH LATE WEDNESDAY
NIGHT FOR COZ095-096.

WINTER WEATHER ADVISORY FROM 9 AM TUESDAY TO 11 AM MST WEDNESDAY
FOR COZ066-067.

WINTER STORM WARNING FROM 9 AM TUESDAY TO 11 AM MST WEDNESDAY
FOR COZ068.

&&

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HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE PUEBLO CO
946 AM MST MON DEC 21 2009

COZ058>089-093>099-221700-
WESTERN MOSQUITO RANGE/EAST LAKE COUNTY ABOVE 11000 FT-
LEADVILLE VICINITY/LAKE COUNTY BELOW 11000 FT-
EASTERN SAWATCH MOUNTAINS ABOVE 11000 FT-
WESTERN CHAFFEE COUNTY BETWEEN 9000 AND 11000 FT-
CENTRAL CHAFFEE COUNTY BELOW 9000 FT-
WESTERN MOSQUITO RANGE/EAST CHAFFEE COUNTY ABOVE 9000 FT-
SAGUACHE COUNTY WEST OF CONTINENTAL DIVIDE BELOW 10000 FT-
SAGUACHE COUNTY EAST OF CONTINENTAL DIVIDE BELOW 10000 FT-
LA GARITA MOUNTAINS ABOVE 10000 FT-
UPPER RIO GRANDE VALLEY/EASTERN SAN JUAN MOUNTAINS BELOW 10000 FT-
EASTERN SAN JUAN MOUNTAINS ABOVE 10000 FT-
DEL NORTE VICINITY/NORTHERN SAN LUIS VALLEY BELOW 8500 FT-
ALAMOSA VICINITY/CENTRAL SAN LUIS VALLEY BELOW 8500 FT-
SOUTHERN SAN LUIS VALLEY-
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-
NORTHWESTERN FREMONT COUNTY ABOVE 8500 FT-
WESTERN/CENTRAL FREMONT COUNTY BELOW 8500 FT-
WET MOUNTAIN VALLEY BELOW 8500 FEET-
WET MOUNTAINS BETWEEN 6300 AND 10000 FT-
WET MOUNTAINS ABOVE 10000 FT-
TELLER COUNTY/RAMPART RANGE ABOVE 7500 FT/PIKES PEAK BETWEEN
7500 AND 11000 FT-PIKES PEAK ABOVE 11000 FT-
CANON CITY VICINITY/EASTERN FREMONT COUNTY-
NORTHERN EL PASO COUNTY/MONUMENT RIDGE/RAMPART RANGE BELOW
7500 FT-
COLORADO SPRINGS VICINITY/SOUTHERN EL PASO COUNTY/RAMPART RANGE
BELOW 7400 FT-PUEBLO AND VICINITY/PUEBLO COUNTY BELOW 6300 FT-
WALSENBURG VICINITY/UPPER HUERFANO RIVER BASIN BELOW 7500 FT-
TRINIDAD VICINITY/WESTERN LAS ANIMAS COUNTY BELOW 7500 FT-
CROWLEY COUNTY-LA JUNTA VICINITY/OTERO COUNTY-
EASTERN LAS ANIMAS COUNTY-WESTERN KIOWA COUNTY-
EASTERN KIOWA COUNTY-LAS ANIMAS VICINITY/BENT COUNTY-
LAMAR VICINITY/PROWERS COUNTY-SPRINGFIELD VICINITY/BACA COUNTY-
946 AM MST MON DEC 21 2009

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL...EAST
CENTRAL...SOUTH CENTRAL AND SOUTHEAST COLORADO.

.DAY ONE...TODAY AND TONIGHT

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

A DEVELOPING STORM SYSTEM IS EXPECTED TO SPREAD SNOW INTO THE
SOUTHWEST AND CENTRAL MOUNTAINS ON TUESDAY...BEFORE SPREADING
EASTWARD INTO THE SOUTHEAST MOUNTAINS AND PLAINS TUESDAY NIGHT
THROUGH WEDNESDAY NIGHT. SIGNIFICANT SNOWFALL ACCUMULATIONS WILL
BE POSSIBLE ACROSS THE EASTERN SAN JUAN MOUNTAINS...AS WELL AS
NORTHERN PORTIONS OF THE SOUTHEAST PLAINS...INCLUDING KIOWA
COUNTY. MODERATE SNOWFALL ACCUMULATIONS WILL BE POSSIBLE ACROSS
THE CENTRAL MOUNTAINS AS WELL AS PORTIONS OF TELLER AND NORTHERN
EL PASO COUNTIES...WITH GENERALLY LIGHT SNOWFALL ACCUMULATIONS
EXPECTED ELSEWHERE ACROSS SOUTH CENTRAL AND SOUTHEAST COLORADO.
NORTH WINDS WILL INCREASE ON WEDNESDAY AT 20 TO 40 MPH ACROSS THE
PALMER DIVIDE AND PORTIONS OF THE SOUTHEAST PLAINS. COMBINED WITH
THE FALLING SNOW...THIS MAY CAUSE DANGEROUS TRAVEL
CONDITIONS...ESPECIALLY EAST OF LA JUNTA.

THERE IS STILL MUCH UNCERTAINTY REGARDING THE TRACK AND STRENGTH
OF THIS STORM SYSTEM AS IT MOVES ACROSS NEW MEXICO ON WEDNESDAY.
ANY CHANGE IN THE TRACK COULD MEAN MORE OR LESS SNOWFALL FOR
SOUTHEAST COLORADO. IF YOU HAVE TRAVEL OR OUTDOOR PLANS ACROSS
SOUTH CENTRAL AND SOUTHEAST COLORADO DURING THE TUESDAY THROUGH
THURSDAY TIME PERIOD...PLEASE MONITOR THE LATEST FORECASTS
CONCERNING THIS DEVELOPING WINTER STORM.

ANOTHER STORM SYSTEM WILL DROP IN FROM THE NORTH THURSDAY NIGHT
AND FRIDAY KEEPING TEMPERATURES WELL BELOW NORMAL WITH MORE LIGHT
SNOW POSSIBLE ACROSS THE MOUNTAINS AND PLAINS.

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS WILL NOT BE NEEDED TODAY OR TONIGHT.

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