Alert archive / Idaho / Mesoscale Discussions in 2022
Mesoscale Discussion 1815
The Storm Prediction Center issued this mesoscale discussion at Sep 21, 2022, 2:47 PM MDT for 23 counties in Idaho; Lincoln County, Teton County, Wyoming. It was in force for 88 min.
The area
The outline as issued.
The facts
- Issued
- Sep 21, 2022, 2:47 PM MDT (20:47 UTC)
- Expired
- Sep 21, 2022, 4:15 PM MDT
- In force
- 88 min
- Issued by
- the Storm Prediction Center
- Concerning
- Severe thunderstorm watch 542
All 25 counties
Bannock County, ID, Bear Lake County, ID, Bingham County, ID, Blaine County, ID, Bonneville County, ID, Butte County, ID, Camas County, ID, Caribou County, ID, Cassia County, ID, Clark County, ID, Custer County, ID, Franklin County, ID, Fremont County, ID, Gooding County, ID, Jefferson County, ID, Jerome County, ID, Lincoln County, ID, Madison County, ID, Minidoka County, ID, Oneida County, ID, Power County, ID, Teton County, ID, Twin Falls County, ID, Lincoln County, WY, Teton County, WY
The radar
The Pocatello radar (KSFX), 58 km from the middle of the area, began a volume at 20:48 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.
The nearest sounding before it
Salt Lake City I, UT (KSLC), launched 12:00Z, 8.8 hours before the alert went out and 259 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
- 52 J/kg
- Mixed-layer CIN
- -170 J/kg
- Mixed-layer LCL
- 2043 m above ground
- 0-6 km bulk shear
- 46 kt
- 0-1 km storm-relative helicity
- 53 m²/s²
- 0-3 km storm-relative helicity
- 113 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
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</html>SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 21, 12:20 PM MDT | Mesoscale Discussion | SPC | Ada, Bannock, Bear Lake, Bingham, Blaine, Butte and 13 more | 85 min |
| Sep 21, 12:40 PM MDT | Severe Thunderstorm Watch | SPC | Bannock, Bear Lake, Bingham, Blaine, Boise, Bonneville and 19 more | 8 hr |
| Sep 21, 12:19 PM MDT | Severe Thunderstorm Watch | SPC | Uinta | 8 hr |
| Sep 21, 1:56 PM MDT | Mesoscale Discussion | SPC | Uinta | 94 min |
Nearby
Mesoscale Discussions in Idaho, 2022Mesoscale Discussions in Wyoming, 2022Every mesoscale discussion in 2022
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.