Alert archive / Utah / Mesoscale Discussions in 2004
Mesoscale Discussion 1835
The Storm Prediction Center issued this mesoscale discussion at Aug 2, 2004, 12:31 PM MDT for 4 states. It was in force for 2 hr.
The area
The outline as issued.
The facts
- Issued
- Aug 2, 2004, 12:31 PM MDT (18:31 UTC)
- Expired
- Aug 2, 2004, 3:00 PM MDT
- In force
- 2 hr
- Issued by
- the Storm Prediction Center
All 37 counties
Bannock County, ID, Bear Lake County, ID, Bingham County, ID, Bonneville County, ID, Caribou County, ID, Cassia County, ID, Franklin County, ID, Gooding County, ID, Jerome County, ID, Lincoln County, ID, Minidoka County, ID, Oneida County, ID, Power County, ID, Twin Falls County, ID, Elko County, NV, White Pine County, NV, Box Elder County, UT, Cache County, UT, Daggett County, UT, Davis County, UT, Duchesne County, UT, Juab County, UT, Millard County, UT, Morgan County, UT, Rich County, UT, Salt Lake County, UT, Sanpete County, UT, Summit County, UT, Tooele County, UT, Utah County, UT, Wasatch County, UT, Weber County, UT, Fremont County, WY, Lincoln County, WY, Sublette County, WY, Sweetwater County, WY, Uinta County, WY
The radar
The Salt Lake City radar (KMTX), 18 km from the middle of the area, began a volume at 18:30 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
Elko, NV (KLKN), launched 12:00Z, 6.5 hours before the alert went out and 161 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2045 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- 76 m²/s²
- 0-3 km storm-relative helicity
- 35 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 |
|---|---|---|---|---|
| Aug 2, 1:10 PM MDT | Mesoscale Discussion | SPC | Ada, Adams, Canyon, Gem, Nez Perce, Payette and 1 more | 3 hr |
| Aug 2, 1:50 PM MDT | Severe Thunderstorm Watch | SPC | Ada, Adams, Boise, Canyon, Gem, Payette and 1 more | 7 hr |
| Aug 2, 2:25 PM MDT | Severe Thunderstorm Watch | SPC | Cache, Davis, Duchesne, Morgan, Rich, Salt Lake and 4 more | 7 hr |
| Aug 2, 4:27 PM MDT | Mesoscale Discussion | SPC | Cache, Davis, Duchesne, Morgan, Rich, Salt Lake and 4 more | 63 min |
Nearby
Mesoscale Discussions in Utah, 2004Mesoscale Discussions in Idaho, 2004Mesoscale Discussions in Wyoming, 2004Every mesoscale discussion in 2004
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.