Alert archive / Utah / Mesoscale Discussions in 2005
Mesoscale Discussion 2170
The Storm Prediction Center issued this mesoscale discussion at Sep 9, 2005, 12:07 PM MDT for 26 counties in Utah; Uinta County, Wyoming. It was in force for 113 min.
The area
The outline as issued.
The facts
- Issued
- Sep 9, 2005, 12:07 PM MDT (18:07 UTC)
- Expired
- Sep 9, 2005, 2:00 PM MDT
- In force
- 113 min
- Issued by
- the Storm Prediction Center
All 27 counties
Beaver County, UT, Cache County, UT, Carbon County, UT, Daggett County, UT, Davis County, UT, Duchesne County, UT, Emery County, UT, Garfield County, UT, Grand County, UT, Iron County, UT, Juab County, UT, Kane County, UT, Millard County, UT, Morgan County, UT, Piute County, UT, Rich County, UT, Salt Lake 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, Weber County, UT, Uinta County, WY
The radar
The Cedar City radar (KICX), 224 km from the middle of the area, began a volume at 18:07 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 watches that followed
Watches SPC issued over any of the same counties within four hours of this discussion.
The nearest sounding before it
Grand Junction, CO (KGJT), launched 12:00Z, 6.1 hours before the alert went out and 209 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.
- Mixed-layer CAPE
- 330 J/kg
- Mixed-layer CIN
- -57 J/kg
- Mixed-layer LCL
- 1079 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 64 m²/s²
- 0-3 km storm-relative helicity
- 80 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 0.2
The text
As transmitted, in the capitals the NWS used until 2016.
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</html>SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 9, 12:35 PM MDT | Severe Thunderstorm Watch | SPC | Carbon, Davis, Duchesne, Emery, Garfield, Juab and 11 more | 7 hr |
| Sep 9, 2:50 PM MDT | Severe Thunderstorm Watch | SPC | Daggett, Grand, San Juan, Uintah | 4 hr |
| Sep 9, 5:59 PM MDT | Mesoscale Discussion | SPC | Carbon, Emery, Grand, San Juan, Uintah | 91 min |
Nearby
Mesoscale Discussions in Utah, 2005Mesoscale Discussions in Wyoming, 2005Every mesoscale discussion 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.