Alert archive / Utah / Special Weather Statements in 2021

Special Weather Statement, NWS Salt Lake City, UT

September 2, 2021Summit County, Utah

NWS Salt Lake City, UT issued this special weather statement at Sep 2, 2021, 7:31 PM MDT for Summit County, Utah. It was in force for 29 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Sep 2, 2021, 7:31 PM MDT (01:31 UTC)
Expired: Sep 2, 2021, 8:00 PM MDT
In force: 29 min
Issued by: NWS Salt Lake City, UT
Hail: 0.25 in
Wind: 50

County Summit County, UT

The radar

The Salt Lake City radar (KMTX), 116 km from the middle of the area, began a volume at 01:35 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.

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Special weather statement, Sep 2, 6:13 PM MDT, 1 hour 18 minutes before

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Special weather statement, Sep 2, 6:59 PM MDT, 32 minutes before

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Special weather statement, Sep 2, 7:31 PM MDT, 0 minutes before

Special Weather Statement
National Weather Service Salt Lake City UT
731 PM MDT Thu Sep 2 2021

UTZ109-110-112-WYZ021-030200-
Bear Lake and Bear River Valley UT-Western Uinta Mountains UT-
Wasatch Mountains I-80 North UT-Southwest Wyoming WY-
731 PM MDT Thu Sep 2 2021

...A strong thunderstorm will impact portions of eastern Weber...
southeastern Rich...northeastern Morgan...northwestern Summit and
western Uinta Counties through 800 PM MDT...

At 731 PM MDT, Doppler radar was tracking a strong thunderstorm 12
miles west of Evanston, moving east at 45 mph.

HAZARD...Wind gusts up to 50 mph and pea size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

Locations impacted include...
Evanston, Ragen, Wahsatch, Emory, Castle Rock, Almy, Altamont,
Piedmont and Leroy.

This includes the following highways...
 Interstate 80 in Wyoming between mile markers 1 and 26.
 Interstate 80 in Utah between mile markers 172 and 196.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Torrential rainfall is also occurring with this storm and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

&&

LAT...LON 4089 11134 4132 11150 4150 11069 4111 11047
TIME...MOT...LOC 0131Z 248DEG 41KT 4123 11120

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...50 MPH

MT

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 2, 6:13 PM MDT	Special Weather Statement	SLC	Salt Lake	32 min
Sep 2, 6:29 PM MDT	Severe Thunderstorm Warning	SLC	Davis, Morgan, Salt Lake	31 min
Sep 2, 6:59 PM MDT	Special Weather Statement	SLC	Morgan	31 min
Sep 2, 7:49 PM MDT	Severe Thunderstorm Warning	SLC	Rich, Summit	26 min
Sep 2, 8:15 PM MDT	Special Weather Statement	SLC	Uinta	30 min

Nearby

Special Weather Statements in Utah, 2021 Every special weather statement 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.