Alert archive / Colorado / Winter Storm Watches in 2012

Winter Storm Watch 2, NWS Grand Junction, CO

February 10, 201213 counties in Colorado; Grand County, San Juan County, Utah

NWS Grand Junction, CO issued this winter storm watch at Feb 10, 2012, 3:10 PM MST for 13 counties in Colorado; Grand County, San Juan County, Utah. It took effect at Feb 12, 2012, 12:00 AM MST. It was in force for .

The area

The counties it named.

The facts

Issued
Feb 10, 2012, 3:10 PM MST (22:10 UTC)
In effect from
Feb 12, 2012, 12:00 AM MST
Expired
Feb 11, 2012, 2:19 PM MST
In force
Issued by
NWS Grand Junction, CO

Counties Archuleta County, CO, Delta County, CO, Dolores County, CO, Garfield County, CO, Gunnison County, CO, Hinsdale County, CO, La Plata County, CO, Mesa County, CO, Montezuma County, CO, Montrose County, CO, Ouray County, CO, San Juan County, CO, San Miguel County, CO, Grand County, UT, San Juan County, UT

The radar

The Grand Junction radar (KGJX), 100 km from the middle of the area, began a volume at 22:07 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 forecasters said that day

The local office's own words before this winter storm watch went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Grand Junction, CO wrote its last area forecast discussion before this winter storm watch went out at Feb 10, 12:21 PM MST, 2 hours 49 minutes earlier.

Area forecast discussion, Feb 10, 12:21 PM MST, 2 hours 49 minutes before
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Hazardous weather outlook, Feb 10, 5:18 AM MST, 9 hours 52 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GRAND JUNCTION CO
518 AM MST FRI FEB 10 2012

COZ001>014-017>023-UTZ022>025-027>029-111300-
LOWER YAMPA RIVER BASIN-CENTRAL YAMPA RIVER BASIN-
ROAN AND TAVAPUTS PLATEAUS-ELKHEAD AND PARK MOUNTAINS-
UPPER YAMPA RIVER BASIN-GRAND VALLEY-DEBEQUE TO SILT CORRIDOR-
CENTRAL COLORADO RIVER BASIN-GRAND AND BATTLEMENT MESAS-
GORE AND ELK MOUNTAINS/CENTRAL MOUNTAIN VALLEYS-
CENTRAL GUNNISON AND UNCOMPAHGRE RIVER BASIN-
WEST ELK AND SAWATCH MOUNTAINS-FLATTOPS-
UPPER GUNNISON RIVER VALLEY-UNCOMPAHGRE PLATEAU AND DALLAS DIVIDE-
NORTHWEST SAN JUAN MOUNTAINS-SOUTHWEST SAN JUAN MOUNTAINS-
PARADOX VALLEY/LOWER DOLORES RIVER-
FOUR CORNERS/UPPER DOLORES RIVER-ANIMAS RIVER BASIN-
SAN JUAN RIVER BASIN-SOUTHEAST UTAH-EASTERN UINTA MOUNTAINS-
EASTERN UINTA BASIN-TAVAPUTS PLATEAU-ARCHES/GRAND FLAT-
LA SAL AND ABAJO MOUNTAINS-CANYONLANDS/NATURAL BRIDGES-
518 AM MST FRI FEB 10 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR EASTERN UTAH AND WESTERN
COLORADO.

.DAY ONE...TODAY AND TONIGHT

A MOISTENING NORTHERLY FLOW INTO COLORADO WILL INCREASE THE
COVERAGE AND INTENSITY OF SNOWFALL ACROSS THE PORTIONS OF THE NORTHERN
AND CENTRAL MOUNTAINS TODAY. SNOW...AND A MIXTURE OF RAIN AND
SNOW CAN ALSO BE EXPECTED ACROSS THE LOWER VALLEYS IN THE NORTH
TODAY...PERSISTING INTO THE LATE EVENING HOURS.

THE PARK AND NORTHERN GORE RANGES LOOK TO RECEIVE NEW SNOWFALL AMOUNTS
IN THE 5 TO 10 INCH RANGE...WITH 3 TO 7 INCHES EXPECTED FROM NEAR
VAIL PASS TO THE FLAT TOPS. MOUNTAINOUS AREAS IN THE SOUTH SHOULD
MISS OUT ON THE BULK OF THIS SNOWFALL WITH ONLY LIGHT
ACCUMULATIONS EXPECTED AT BEST. THE LOWER ELEVATIONS IN THE NORTH
SHOULD SEE SNOW ACCUMULATIONS IN THE 1 TO 3 INCH RANGE BY SUNRISE
ON SATURDAY.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

STARTING LATE SATURDAY EVENING A SERIES OF STORMS WILL MOVE OVER
COLORADO AND UTAH BRINGING SIGNIFICANT SNOW ACCUMULATIONS TO THE
MOUNTAINS AND A MIXTURE OF RAIN OR SNOW THE LOWER ELEVATIONS. THE
FIRST STORM WILL MOVE THROUGH ON SUNDAY AND SUNDAY NIGHT FOLLOWED
BY A SECOND STORM ON MONDAY NIGHT INTO EARLY WEDNESDAY. BOTH OF
THESE STORMS LOOK CAPABLE OF PRODUCING SNOW AMOUNTS NEAR OR
EXCEEDING A FOOT IN MANY MOUNTAIN LOCATIONS. STAY TUNED FOR THE
LATEST UPDATES ON THE TIMING AND TRACKS OF THESE WINTER STORMS.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED.

The office that day

Everything else NWS Grand Junction, CO issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Feb 10, 3:41 AM MSTWinter Weather AdvisoryGJTEagle, Garfield, Moffat, Pitkin, Rio Blanco, Routt24 hr

Nearby

Winter Storm Watches in Colorado, 2012Winter Storm Watches in Utah, 2012Every winter storm watch in 2012

Sources

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