Alert archive / Colorado / Winter Storm Watches in 2011

Winter Storm Watch 10, NWS Denver/Boulder, CO

October 31, 201122 counties in Colorado

NWS Denver/Boulder, CO issued this winter storm watch at Oct 31, 2011, 5:02 AM MDT for 22 counties in Colorado. It took effect at Nov 1, 2011, 6:00 PM MDT. It was in force for .

The area

The counties it named.

The facts

Issued: Oct 31, 2011, 5:02 AM MDT (11:02 UTC)
In effect from: Nov 1, 2011, 6:00 PM MDT
Expired: Nov 1, 2011, 5:12 AM MDT
In force
Issued by: NWS Denver/Boulder, CO

All 22 counties

Adams County, CO, Arapahoe County, CO, Boulder County, CO, Broomfield County, CO, Clear Creek County, CO, Denver County, CO, Douglas County, CO, Elbert County, CO, Gilpin County, CO, Grand County, CO, Jackson County, CO, Jefferson County, CO, Larimer County, CO, Lincoln County, CO, Logan County, CO, Morgan County, CO, Park County, CO, Phillips County, CO, Sedgwick County, CO, Summit County, CO, Washington County, CO, Weld County, CO

The radar

The Denver radar (KFTG), 21 km from the middle of the area, began a volume at 11:07 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 Denver/Boulder, CO wrote its last area forecast discussion before this winter storm watch went out at Oct 31, 4:11 AM MDT, 51 minutes earlier.

Area forecast discussion, Oct 31, 4:11 AM MDT, 51 minutes before

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Nearby

Winter Storm Watches in Colorado, 2011 Every winter storm watch 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.