Alert archive / Utah / Fire Weather Watches in 2021

Fire Weather Watch 8, NWS Salt Lake City, UT

June 4, 202113 counties in Utah

NWS Salt Lake City, UT issued this fire weather watch at Jun 4, 2021, 2:33 AM MDT for 13 counties in Utah. It took effect at Jun 6, 2021, 9:00 PM MDT. It was in force for .

The area

The counties it named.

The facts

Issued
Jun 4, 2021, 2:33 AM MDT (08:33 UTC)
In effect from
Jun 6, 2021, 9:00 PM MDT
Expired
Jun 5, 2021, 3:17 AM MDT
In force
Issued by
NWS Salt Lake City, UT

Counties Beaver County, UT, Carbon County, UT, Duchesne County, UT, Emery County, UT, Garfield County, UT, Iron County, UT, Juab County, UT, Kane County, UT, Millard County, UT, San Juan County, UT, Sanpete County, UT, Washington County, UT, Wayne County, UT

The radar

The Cedar City radar (KICX), 146 km from the middle of the area, began a volume at 08:37 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 nearest sounding before it

Salt Lake City I, UT (KSLC), launched 00:00Z, 8.6 hours before the alert went out and 244 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Salt Lake City I, UT at 00:00Z on 2021-06-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 116 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Salt Lake City I, UT at 00:00Z on 2021-06-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -29 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
116 J/kg
Mixed-layer CIN
-101 J/kg
Mixed-layer LCL
3685 m above ground
0-6 km bulk shear
7 kt
0-1 km storm-relative helicity
-29 m²/s²
0-3 km storm-relative helicity
-46 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this fire weather watch 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 fire weather watch went out at Jun 3, 9:13 PM MDT, 5 hours 20 minutes earlier.

Area forecast discussion, Jun 3, 9:13 PM MDT, 5 hours 20 minutes before
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Hazardous weather outlook, Jun 3, 4:54 AM MDT, 21 hours 39 minutes before
Hazardous Weather Outlook
National Weather Service Salt Lake City UT
454 AM MDT Thu Jun 3 2021

UTZ101>131-WYZ021-041100-
Great Salt Lake Desert and Mountains-Tooele and Rush Valleys-
Eastern Box Elder County-Northern Wasatch Front-Salt Lake Valley-
Utah Valley-Cache Valley/Utah Portion-Wasatch Back-
Bear Lake and Bear River Valley-Wasatch Mountains I-80 North-
Wasatch Mountains South of I-80-Western Uinta Mountains-
Wasatch Plateau/Book Cliffs-Western Uinta Basin-
Western Millard and Juab Counties-Eastern Juab/Millard Counties-
Central Mountains-Sanpete Valley-Sevier Valley-Castle Country-
San Rafael Swell-Southwest Utah-Lower Washington County-
Zion National Park-Southern Mountains-Upper Sevier River Valleys-
Bryce Canyon Country-South Central Utah-
Capitol Reef National Park and Vicinity-Western Canyonlands-
Glen Canyon Recreation Area/Lake Powell-Southwest Wyoming-
454 AM MDT Thu Jun 3 2021

This Hazardous Weather Outlook is for portions of central Utah...
northern Utah...southern Utah...southwest Utah and southwest
Wyoming.

.DAY ONE...Today and Tonight

Strong high pressure will build across the area through Friday.
This high pressure will bring the potential of record to near
record temperatures to Utah and southwest Wyoming. The warmest
day is expected to be Friday, but temperatures will only cool
slightly for the weekend. Afternoon max temperatures are expected
to exceed 100 degrees in the lowest valleys of far southern Utah
through Saturday.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday

Strong high pressure will build across the area through Friday.
This high pressure will bring the potential of record to near
record temperatures to Utah and southwest Wyoming. The warmest
day is expected to be Friday, but temperatures will only cool
slightly for the weekend. Afternoon max temperatures are expected
to exceed 100 degrees in the lowest valleys of far southern Utah
through Saturday.

Increasing winds and a dry airmass may result in hazardous fire
weather conditions where fuels are critically dry late in the
weekend and into the early part of next week.

.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

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 4, 2:33 AM MDTRed Flag WarningSLCCarbon, Duchesne, Emery, Juab, Millard, Sanpete7 days
Jun 4, 4:36 PM MDTSpecial Weather StatementSLCBox Elder39 min
Jun 4, 4:42 PM MDTSevere Thunderstorm WarningSLCBox Elder33 min
Jun 4, 5:49 PM MDTSpecial Weather StatementSLC41 min

Nearby

Fire Weather Watches in Utah, 2021Every fire weather watch 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.