Alert archive / Colorado / Winter Storm Warnings in 2011

Winter Storm Warning 17, NWS Grand Junction, CO

April 25, 201112 counties in Colorado

NWS Grand Junction, CO issued this winter storm warning at Apr 25, 2011, 3:00 PM MDT for 12 counties in Colorado. It was in force for 33 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Apr 25, 2011, 3:00 PM MDT (21:00 UTC)
Expired: Apr 27, 2011, 12:00 AM MDT
In force: 33 hr
Issued by: NWS Grand Junction, CO

Counties Delta County, CO, Eagle County, CO, Garfield County, CO, Gunnison County, CO, Hinsdale County, CO, Moffat County, CO, Montrose County, CO, Ouray County, CO, Pitkin County, CO, Rio Blanco County, CO, Routt County, CO, San Miguel County, CO

The radar

The Grand Junction radar (KGJX), 51 km from the middle of the area, began a volume at 21:02 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 warning 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 warning went out at Apr 25, 2:45 PM MDT, 15 minutes earlier.

Area forecast discussion, Apr 25, 2:45 PM MDT, 15 minutes before

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Hazardous weather outlook, Apr 25, 5:08 AM MDT, 9 hours 52 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GRAND JUNCTION CO
508 AM MDT MON APR 25 2011

COZ001>014-017>023-UTZ022>025-027>029-261200-
ANIMAS RIVER BASIN-ARCHES/GRAND FLAT-CANYONLANDS/NATURAL BRIDGES-
CENTRAL COLORADO RIVER BASIN-
CENTRAL GUNNISON AND UNCOMPAHGRE RIVER BASIN-
CENTRAL YAMPA RIVER BASIN-DEBEQUE TO SILT CORRIDOR-
EASTERN UINTA BASIN-EASTERN UINTA MOUNTAINS-
ELKHEAD AND PARK MOUNTAINS-FLAT TOPS-
FOUR CORNERS/UPPER DOLORES RIVER-
GORE AND ELK MOUNTAINS/CENTRAL MOUNTAINS-GRAND AND BATTLEMENT MESAS-
GRAND VALLEY-LA SAL AND ABAJO MOUNTAINS-LOWER YAMPA RIVER BASIN-
NORTHWEST SAN JUAN MOUNTAINS-PARADOX VALLEY/LOWER DOLORES RIVER-
ROAN AND TAVAPUTS PLATEAUS-SAN JUAN RIVER BASIN-SOUTHEAST UTAH-
SOUTHWEST SAN JUAN MOUNTAINS-TAVAPUTS PLATEAU-
UNCOMPAHGRE PLATEAU AND DALLAS DIVIDE-UPPER GUNNISON RIVER VALLEY-
UPPER YAMPA RIVER BASIN-WEST ELK AND SAWATCH MOUNTAINS-
508 AM MDT MON APR 25 2011

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

.DAY ONE...TODAY AND TONIGHT...

EXPECT RAIN AND SNOW SHOWERS TO CONTINUE TODAY. THE SNOW LEVEL WILL
REMAIN BETWEEN 8000 AND 9000 FT...WITH PERIODS OF HEAVY SNOWFALL
EXPECTED IN THE MOUNTAINS THROUGH TONIGHT. TRAVELERS OVER THE HIGH
MOUNTAIN PASSES CAN EXPECT HAZARDOUS DRIVING CONDITIONS.

DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY...

PERIODS OF SNOW WILL CONTINUE OVER THE WESTERN COLORADO MOUNTAINS
...WITH RAIN AT LOWER ELEVATIONS...THROUGH TUESDAY NIGHT BRINGING
SIGNIFICANT SNOWFALL ACCUMULATIONS TO AREAS ABOVE 8500 FEET BY
WEDNESDAY MORNING.

RECORD OVERNIGHT LOW TEMPERATURES ARE EXPECTED TUESDAY NIGHT ACROSS
THE COLORADO WEST-CENTRAL COLORADO VALLEYS AND UTAH'S GRAND FLAT...
PORTIONS OF THE CENTRAL MOUNTAINS AND THE COLORADO NORTHWEST PLATEAU.

A PACIFIC DISTURBANCE WILL BRING A CHANCE OF RAIN AND SNOW SHOWERS...
AS WELL AS THUNDERSTORMS...TO THE NORTHERN COLORADO BORDER FRIDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED TODAY OR TONIGHT.

TGJT

In the hours before

Local storm report, Apr 25, 2:41 PM MDT, 19 minutes before

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Local storm report, Apr 25, 2:42 PM MDT, 18 minutes before

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Local storm report, Apr 25, 2:43 PM MDT, 17 minutes before

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Local storm report, Apr 25, 2:44 PM MDT, 16 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 25, 5:35 AM MDT	Freeze Watch	GJT	Delta, Dolores, Eagle, Garfield, Gunnison, La Plata and 8 more	4 hr
Apr 25, 9:55 AM MDT	Freeze Warning	GJT	Delta, Dolores, Garfield, Gunnison, La Plata, Mesa and 3 more	47 hr
Apr 25, 3:00 PM MDT	Winter Weather Advisory	GJT	Archuleta, Delta, Dolores, Garfield, Hinsdale, La Plata and 7 more	33 hr

Nearby

Winter Storm Warnings in Colorado, 2011 Every winter storm warning 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; radar from the NEXRAD Level II archive.