Alert archive / Iowa / Mesoscale Discussions in 2015
Mesoscale Discussion 58
The Storm Prediction Center issued this mesoscale discussion at Feb 4, 2015, 7:34 AM CST for 4 states. It was in force for 4 hr.
The area
The outline as issued.
The facts
- Issued
- Feb 4, 2015, 7:34 AM CST (13:34 UTC)
- Expired
- Feb 4, 2015, 11:30 AM CST
- In force
- 4 hr
- Issued by
- the Storm Prediction Center
All 64 counties
Adams County, IA, Appanoose County, IA, Clarke County, IA, Davis County, IA, Decatur County, IA, Des Moines County, IA, Fremont County, IA, Henry County, IA, Jefferson County, IA, Lee County, IA, Lucas County, IA, Mills County, IA, Monroe County, IA, Montgomery County, IA, Page County, IA, Ringgold County, IA, Taylor County, IA, Union County, IA, Van Buren County, IA, Wapello County, IA, Wayne County, IA, Fulton County, IL, Hancock County, IL, Henderson County, IL, Knox County, IL, McDonough County, IL, Peoria County, IL, Warren County, IL, Adair County, MO, Andrew County, MO, Atchison County, MO, Clark County, MO, Daviess County, MO, DeKalb County, MO, Gentry County, MO, Grundy County, MO, Harrison County, MO, Holt County, MO, Knox County, MO, Lewis County, MO, Mercer County, MO, Nodaway County, MO, Putnam County, MO, Schuyler County, MO, Scotland County, MO, Sullivan County, MO, Worth County, MO, Cass County, NE, Clay County, NE, Fillmore County, NE, Gage County, NE, Hamilton County, NE, Jefferson County, NE, Johnson County, NE, Lancaster County, NE, Nemaha County, NE, Otoe County, NE, Pawnee County, NE, Richardson County, NE, Saline County, NE, Sarpy County, NE, Seward County, NE, Thayer County, NE, York County, NE
The radar
The Des Moines radar (KDMX), 160 km from the middle of the area, began a volume at 13:38 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
Omaha, NE (KOAX), launched 12:00Z, 1.6 hours before the alert went out and 183 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
- 543 m above ground
- 0-6 km bulk shear
- 75 kt
- 0-1 km storm-relative helicity
- -119 m²/s²
- 0-3 km storm-relative helicity
- 110 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 |
|---|---|---|---|---|
| Feb 4, 4:24 AM CST | Mesoscale Discussion | SPC | Arthur, Buffalo, Butler, Clay, Custer, Dawson and 20 more | 4 hr |
Nearby
Mesoscale Discussions in Iowa, 2015Mesoscale Discussions in Missouri, 2015Mesoscale Discussions in Nebraska, 2015Every mesoscale discussion in 2015
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.