Alert archive / Idaho / Mesoscale Discussions in 2003
Mesoscale Discussion 1405
The Storm Prediction Center issued this mesoscale discussion at Jun 18, 2003, 1:18 PM MDT for 4 states. It was in force for 57 min.
The area
The outline as issued.
The facts
- Issued
- Jun 18, 2003, 1:18 PM MDT (19:18 UTC)
- Expired
- Jun 18, 2003, 2:15 PM MDT
- In force
- 57 min
- Issued by
- the Storm Prediction Center
All 49 counties
Ada County, ID, Adams County, ID, Benewah County, ID, Boise County, ID, Bonner County, ID, Boundary County, ID, Canyon County, ID, Clearwater County, ID, Elmore County, ID, Gem County, ID, Idaho County, ID, Kootenai County, ID, Latah County, ID, Lewis County, ID, Nez Perce County, ID, Owyhee County, ID, Payette County, ID, Shoshone County, ID, Valley County, ID, Washington County, ID, Lincoln County, MT, Mineral County, MT, Sanders County, MT, Baker County, OR, Crook County, OR, Gilliam County, OR, Grant County, OR, Harney County, OR, Malheur County, OR, Morrow County, OR, Umatilla County, OR, Union County, OR, Wallowa County, OR, Wheeler County, OR, Adams County, WA, Asotin County, WA, Benton County, WA, Columbia County, WA, Douglas County, WA, Ferry County, WA, Franklin County, WA, Garfield County, WA, Grant County, WA, Lincoln County, WA, Pend Oreille County, WA, Spokane County, WA, Stevens County, WA, Walla Walla County, WA, Whitman County, WA
The radar
The Pendleton radar (KPDT), 126 km from the middle of the area, began a volume at 19:19 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
Spokane, WA (KOTX), launched 12:00Z, 7.3 hours before the alert went out and 344 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
- 1 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2668 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 61 m²/s²
- 0-3 km storm-relative helicity
- 109 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 |
|---|---|---|---|---|
| Jun 18, 1:45 PM MDT | Severe Thunderstorm Watch | SPC | Ada, Adams, Benewah, Boise, Bonner, Boundary and 13 more | 7 hr |
| Jun 18, 4:10 PM MDT | Mesoscale Discussion | SPC | Ada, Adams, Benewah, Boise, Bonner, Boundary and 13 more | 110 min |
Nearby
Mesoscale Discussions in Idaho, 2003Mesoscale Discussions in Washington, 2003Mesoscale Discussions in Oregon, 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.