Alert archive / Idaho / Mesoscale Discussions in 2003
Mesoscale Discussion 2227
The Storm Prediction Center issued this mesoscale discussion at Aug 22, 2003, 3:50 PM MDT for 24 counties in Idaho. It was in force for 2 hr.
The area
The outline as issued.
The facts
- Issued
- Aug 22, 2003, 3:50 PM MDT (21:50 UTC)
- Expired
- Aug 22, 2003, 6:15 PM MDT
- In force
- 2 hr
- Issued by
- the Storm Prediction Center
All 24 counties
Ada County, ID, Bannock County, ID, Bear Lake County, ID, Bingham County, ID, Blaine County, ID, Boise County, ID, Bonneville County, ID, Butte County, ID, Camas County, ID, Canyon County, ID, Caribou County, ID, Clark County, ID, Custer County, ID, Elmore County, ID, Franklin County, ID, Gem 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
The radar
The Pocatello radar (KSFX), 105 km from the middle of the area, began a volume at 21:52 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
Boise Airport, ID (KBOI), launched 12:00Z, 9.8 hours before the alert went out and 185 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
- 17 J/kg
- Mixed-layer CIN
- -204 J/kg
- Mixed-layer LCL
- 1664 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 45 m²/s²
- 0-3 km storm-relative helicity
- 93 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 22, 12:41 PM MDT | Mesoscale Discussion | SPC | Owyhee | 2 hr |
| Aug 22, 1:55 PM MDT | Severe Thunderstorm Watch | SPC | Twin Falls | 6 hr |
| Aug 22, 2:44 PM MDT | Mesoscale Discussion | SPC | Bear Lake, Franklin, Oneida | 2 hr |
| Aug 22, 4:15 PM MDT | Severe Thunderstorm Watch | SPC | Ada, Blaine, Boise, Butte, Camas, Custer and 9 more | 5 hr |
| Aug 22, 5:50 PM MDT | Mesoscale Discussion | SPC | Blaine, Boise, Butte, Camas, Custer, Elmore and 5 more | 55 min |
Nearby
Mesoscale Discussions in Idaho, 2003Every mesoscale discussion in 2003
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.