Alert archive / Utah / Special Weather Statements in 2020

Special Weather Statement, NWS Salt Lake City, UT

July 12, 2020Duchesne County, Utah

NWS Salt Lake City, UT issued this special weather statement at Jul 12, 2020, 2:02 PM MDT for Duchesne County, Utah. It was in force for 43 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
Jul 12, 2020, 2:02 PM MDT (20:02 UTC)
Expired
Jul 12, 2020, 2:45 PM MDT
In force
43 min
Issued by
NWS Salt Lake City, UT

County Duchesne County, UT

The radar

The Grand Junction radar (KGJX), 220 km from the middle of the area, began a volume at 19:59 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.

NWS Salt Lake City, UT wrote its last area forecast discussion before this special weather statement went out at Jul 12, 9:49 AM MDT, 4 hours 13 minutes earlier.

Area forecast discussion, Jul 12, 9:49 AM MDT, 4 hours 13 minutes before
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Hazardous weather outlook, Jul 12, 4:48 AM MDT, 9 hours 14 minutes before
Hazardous Weather Outlook
National Weather Service Salt Lake City UT
448 AM MDT Sun Jul 12 2020

UTZ001>016-019>021-517-518-WYZ021-131100-
Cache Valley/Utah Portion-Northern Wasatch Front-
Salt Lake and Tooele Valleys-Southern Wasatch Front-
Great Salt Lake Desert and Mountains-Wasatch Mountain Valleys-
Wasatch Mountains I-80 North-Wasatch Mountains South of I-80-
Western Uinta Mountains-Wasatch Plateau/Book Cliffs-
Western Uinta Basin-Castle Country-San Rafael Swell-
Sanpete/Sevier Valleys-West Central Utah-Southwest Utah-
Utahs Dixie and Zion National Park-South Central Utah-
Glen Canyon Recreation Area/Lake Powell-Central Mountains-
Southern Mountains-Southwest Wyoming-
448 AM MDT Sun Jul 12 2020

This Hazardous Weather Outlook is for the western two thirds of
Utah and southwest Wyoming.

.DAY ONE...Today and Tonight

Very hot temperatures will continue to bring excessive heat to
portions of southern through east-central Utah through early
Monday evening. These areas include the St. George area, Zion
National Park, the Lake Powell area and the San Rafael Swell.
Daytime temperatures between 102F to 112F will be common in these
areas with poor nighttime humidity recoveries. Heat at this level
will impact all populations, even those usually not susceptible to
heat.

Critical fire weather conditions are expected today into Tuesday
across the southern half of Utah with breezy to gusty winds and
very low humidity values.

.DAYS TWO THROUGH SEVEN...Monday through Saturday

Very hot temperatures will continue to bring excessive heat to
portions of southern through east-central Utah through early
Monday evening. These areas include the St. George area, Zion
National Park, the Lake Powell area and the San Rafael Swell.
Daytime temperatures between 102F to 112F will be common in these
areas with poor nighttime humidity recoveries. Heat at this level
will impact all populations, even those usually not susceptible to
heat.

Critical fire weather conditions are expected through Tuesday
across the southern half of Utah with breezy to gusty winds and
very low humidity values.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed. Please relay any information
about observed severe weather to the NWS while following all
local, state, and CDC guidelines.

For more information from NOAA/s National Weather Service visit...
http://weather.gov/saltlakecity

For information on potential road travel impacts visit...
http://www.udottraffic.utah.gov/roadweatherforecast.aspx

In the hours before

Special weather statement, Jul 12, 12:32 PM MDT, 1 hour 30 minutes before
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Special weather statement, Jul 12, 2:02 PM MDT, 0 minutes before
Special Weather Statement
National Weather Service Salt Lake City UT
202 PM MDT Sun Jul 12 2020

UTZ009-011-122045-
Western Uinta Basin UT-Western Uinta Mountains UT-
202 PM MDT Sun Jul 12 2020

...SIGNIFICANT WEATHER ADVISORY FOR EAST CENTRAL DUCHESNE COUNTY
UNTIL 245 PM MDT...

At 201 PM MDT, National Weather Service Doppler radar indicated a
strong thunderstorm 8 miles west of Whiterocks...moving southeast at
25 mph.

Wind gusts up to 50 mph will be possible.

Locations impacted include...
Roosevelt, Altamont, Cedarview, Neola and Upalco.

This includes US Route 40 between mile markers 107 and 115.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If threatening weather approaches, take shelter in a sturdy building.

&&

LAT...LON 4018 10998 4033 11034 4068 11009 4067 10998
      4064 10997
TIME...MOT...LOC 2001Z 302DEG 14KT 4045 11011

DVC

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 12, 12:32 PM MDTSpecial Weather StatementSLCDuchesne28 min

Nearby

Special Weather Statements in Utah, 2020Every special weather statement in 2020

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.