Alert archive / Utah / Severe Thunderstorm Watches in 2005

Severe Thunderstorm Watch 545

June 28, 200516 counties in Utah

The Storm Prediction Center issued this severe thunderstorm watch at Jun 28, 2005, 12:45 PM MDT for 16 counties in Utah. It was in force for 7 hr.

The area

The outline as issued.

The facts

Issued
Jun 28, 2005, 12:45 PM MDT (18:45 UTC)
Expired
Jun 28, 2005, 8:00 PM MDT
In force
7 hr
Issued by
the Storm Prediction Center

Counties Carbon County, UT, Daggett County, UT, Duchesne County, UT, Emery County, UT, Garfield County, UT, Grand County, UT, Kane County, UT, Piute County, UT, San Juan County, UT, Sanpete County, UT, Sevier County, UT, Summit County, UT, Uintah County, UT, Utah County, UT, Wasatch County, UT, Wayne County, UT

The radar

The Cedar City radar (KICX), 161 km from the middle of the area, began a volume at 18:48 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.

Warnings issued inside it

8 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

IssuedProductOfficeCountiesLasted
Jun 28, 1:40 PM MDTSevere Thunderstorm WarningSLCJuab, Sanpete, Utah50 min
Jun 28, 1:43 PM MDTSevere Thunderstorm WarningGJTGrand47 min
Jun 28, 1:44 PM MDTSevere Thunderstorm WarningGJTGrand46 min
Jun 28, 2:28 PM MDTSevere Thunderstorm WarningGJTGrand47 min
Jun 28, 2:30 PM MDTSevere Thunderstorm WarningSLCSalt Lake, Utah45 min
Jun 28, 2:56 PM MDTSevere Thunderstorm WarningSLCMorgan, Salt Lake, Summit, Utah, Wasatch64 min
Jun 28, 3:10 PM MDTSevere Thunderstorm WarningGJTGrand, San Juan50 min
Jun 28, 3:29 PM MDTSevere Thunderstorm WarningSLCMorgan, Summit50 min

Discussions around it

SPC mesoscale discussions over the same counties from four hours before the watch to its end.

The nearest sounding before it

Flgstf/Belemont, AZ (KFGZ), launched 12:00Z, 6.8 hours before the alert went out and 312 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, Flgstf/Belemont, AZ at 12:00Z on 2005-06-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Flgstf/Belemont, AZ at 12:00Z on 2005-06-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 106 square meters per square second.19395878Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2402 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
106 m²/s²
0-3 km storm-relative helicity
157 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 28, 11:48 AM MDTMesoscale DiscussionSPCCarbon, Daggett, Duchesne, Emery, Garfield, Grand and 6 more27 min
Jun 28, 3:50 PM MDTMesoscale DiscussionSPCCarbon, Daggett, Duchesne, Emery, Garfield, Grand and 9 more85 min

Nearby

Severe Thunderstorm Watches in Utah, 2005Every severe thunderstorm watch in 2005

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.