Alert archive / Colorado / Winter Storm Warnings in 2017

Winter Storm Warning 6, NWS Grand Junction, CO

January 22, 201717 counties in Colorado; Grand County, San Juan County, Utah

NWS Grand Junction, CO issued this winter storm warning at Jan 22, 2017, 4:30 AM MST for 17 counties in Colorado; Grand County, San Juan County, Utah. It took effect at Jan 22, 2017, 3:00 PM MST. It was in force for 61 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
Jan 22, 2017, 4:30 AM MST (11:30 UTC)
In effect from
Jan 22, 2017, 3:00 PM MST
Expired
Jan 25, 2017, 4:05 AM MST
In force
61 hr
Issued by
NWS Grand Junction, CO

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

The radar

The Grand Junction radar (KGJX), 56 km from the middle of the area, began a volume at 11:32 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 Jan 22, 12:10 AM MST, 4 hours 20 minutes earlier.

Area forecast discussion, Jan 22, 12:10 AM MST, 4 hours 20 minutes before
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Hazardous weather outlook, Jan 21, 5:07 AM MST, 23 hours 23 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GRAND JUNCTION CO
507 AM MST SAT JAN 21 2017

COZ001>014-017>023-UTZ022>025-027>029-221215-
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-FLAT TOPS-
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-
507 AM MST SAT JAN 21 2017

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

.DAY ONE...TODAY AND TONIGHT

A SERIES OF WINTER STORMS WILL PASS THROUGH THE AREA THIS WEEKEND
BRINGING HEAVY SNOW TO THE MOUNTAINS WITH A MIX OF RAIN AND SNOW
FOR THE LOWER VALLEYS. SNOW ACCUMULATIONS ARE EXPECTED TO EXCEED
ONE FOOT OVER THE MOUNTAINS WITH MUCH LIGHTER AMOUNTS IN MOST OF
THE VALLEY LOCATIONS. THE BEST ACCUMULATING SNOW WILL FALL DURING
THE OVERNIGHT HOURS. TRAVEL WILL BE HAZARDOUS AND YOU ARE
ENCOURAGE TO CHECK THE LATEST FORECAST BEFORE VENTURING OUT.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

UNSETTLED WEATHER CONTINUES THROUGH EARLY NEXT WEEK WITH THE
STRONGEST IN THIS SERIES OF STORMS EXPECTED TO ARRIVE MONDAY AND
TUESDAY. HEAVY MOUNTAIN SNOWFALL CONTINUES WITH VALLEY SNOWS
RAMPING UP IN INTENSITY AS WELL. DRIER WEATHER LOOKS TO MOVE IN
AROUND MIDWEEK.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED TODAY OR TONIGHT...HOWEVER
SPOTTERS ARE ENCOURAGED TO REPORT SNOWFALL AMOUNTS TO THE
NATIONAL WEATHER SERVICE IN GRAND JUNCTION.

In the hours before

Local storm report, Jan 21, 10:34 PM MST, 5 hours 56 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GRAND JUNCTION CO
1034 PM MST SAT JAN 21 2017

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

0943 PM     HEAVY SNOW       5 NNE CHIMNEY ROCK      37.27N 107.15W
01/21/2017  M13.0 INCH       ARCHULETA          CO   PUBLIC

            1.28 INCHES WATER EQUIVALENT.

&&

NL

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 21, 7:48 PM MSTWinter Storm WatchGJTArchuleta, Delta, Dolores, Eagle, Garfield, Gunnison and 12 more16 hr
Jan 22, 4:30 AM MSTWinter Weather AdvisoryGJTDelta, Dolores, Eagle, Garfield, Gunnison, Hinsdale and 8 more3 days

Nearby

Winter Storm Warnings in Colorado, 2017Winter Storm Warnings in Utah, 2017Every winter storm warning in 2017

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.