Alert archive / Colorado / Winter Storm Warnings in 2016

Winter Storm Warning 14, NWS Grand Junction, CO

November 20, 201618 counties in Colorado; 4 counties in Utah

NWS Grand Junction, CO issued this winter storm warning at Nov 20, 2016, 3:55 AM MST for 18 counties in Colorado; 4 counties in Utah. It took effect at Nov 21, 2016, 12:00 AM MST. It was in force for 42 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: Nov 20, 2016, 3:55 AM MST (10:55 UTC)
In effect from: Nov 21, 2016, 12:00 AM MST
Expired: Nov 22, 2016, 6:00 PM MST
In force: 42 hr
Issued by: NWS Grand Junction, CO

All 22 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, Pitkin County, CO, Rio Blanco County, CO, Routt County, CO, San Juan County, CO, San Miguel County, CO, Daggett County, UT, Grand County, UT, San Juan County, UT, Uintah County, UT

The radar

The Grand Junction radar (KGJX), 32 km from the middle of the area, began a volume at 10:58 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.

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 Nov 19, 9:59 PM MST, 5 hours 56 minutes earlier.

Area forecast discussion, Nov 19, 9:59 PM MST, 5 hours 56 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
Nov 20, 3:55 AM MST	Winter Weather Advisory	GJT	Gunnison, Hinsdale, Moffat, Montrose, Ouray, Routt and 1 more	62 hr

Nearby

Winter Storm Warnings in Colorado, 2016 Winter Storm Warnings in Utah, 2016 Every winter storm warning in 2016

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.