Alert archive / Utah / Winter Weather Advisories in 2021

Winter Weather Advisory 19, NWS Salt Lake City, UT

October 18, 202115 counties in Utah; Uinta County, Wyoming

NWS Salt Lake City, UT issued this winter weather advisory at Oct 18, 2021, 3:08 AM MDT for 15 counties in Utah; Uinta County, Wyoming. It took effect at Oct 18, 2021, 3:00 PM MDT. It was in force for 21 hr.

The area

The counties it named.

The facts

Issued
Oct 18, 2021, 3:08 AM MDT (09:08 UTC)
In effect from
Oct 18, 2021, 3:00 PM MDT
Expired
Oct 19, 2021, 12:00 PM MDT
In force
21 hr
Issued by
NWS Salt Lake City, UT

Counties Box Elder County, UT, Cache County, UT, Carbon County, UT, Davis County, UT, Duchesne County, UT, Emery County, UT, Juab County, UT, Morgan County, UT, Rich County, UT, Salt Lake County, UT, Sanpete County, UT, Summit County, UT, Utah County, UT, Wasatch County, UT, Weber County, UT, Uinta County, WY

The radar

The Salt Lake City radar (KMTX), 109 km from the middle of the area, began a volume at 09:11 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 weather advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Salt Lake City, UT wrote its last area forecast discussion before this winter weather advisory went out at Oct 17, 9:36 PM MDT, 5 hours 32 minutes earlier.

Area forecast discussion, Oct 17, 9:36 PM MDT, 5 hours 32 minutes before
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The office that day

Everything else NWS Salt Lake City, UT issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Oct 18, 2:47 PM MDTSpecial Weather StatementSLCDavis43 min
Oct 18, 2:53 PM MDTSpecial Weather StatementSLCUtah52 min
Oct 18, 3:08 PM MDTWind AdvisorySLCBeaver, Iron, Juab, Millard, Washington2 hr
Oct 18, 3:19 PM MDTSpecial Weather StatementSLCBox Elder, Davis, Weber56 min
Oct 18, 3:24 PM MDTSpecial Weather StatementSLCWasatch66 min
Oct 18, 4:16 PM MDTSpecial Weather StatementSLCCache, Weber74 min

Nearby

Winter Weather Advisories in Utah, 2021Winter Weather Advisories in Wyoming, 2021Every winter weather advisory in 2021

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.