Alert archive / Iowa / Mesoscale Discussions in 2020
Mesoscale Discussion 209
The Storm Prediction Center issued this mesoscale discussion at Mar 19, 2020, 5:43 PM CDT for 4 states. It was in force for 2 hr.
The area
The outline as issued.
The facts
- Issued
- Mar 19, 2020, 5:43 PM CDT (22:43 UTC)
- Expired
- Mar 19, 2020, 7:45 PM CDT
- In force
- 2 hr
- Issued by
- the Storm Prediction Center
All 60 counties
Adair County, IA, Adams County, IA, Appanoose County, IA, Cass County, IA, Clarke County, IA, Dallas County, IA, Decatur County, IA, Fremont County, IA, Guthrie County, IA, Jasper County, IA, Lucas County, IA, Madison County, IA, Mahaska County, IA, Marion County, IA, Mills County, IA, Monroe County, IA, Montgomery County, IA, Page County, IA, Polk County, IA, Pottawattamie County, IA, Ringgold County, IA, Taylor County, IA, Union County, IA, Wapello County, IA, Warren County, IA, Wayne County, IA, Atchison County, KS, Brown County, KS, Doniphan County, KS, Jackson County, KS, Marshall County, KS, Nemaha County, KS, Pottawatomie County, KS, Riley County, KS, Washington County, KS, Andrew County, MO, Atchison County, MO, Buchanan County, MO, DeKalb County, MO, Gentry County, MO, Harrison County, MO, Holt County, MO, Mercer County, MO, Nodaway County, MO, Putnam County, MO, Worth County, MO, Cass County, NE, Douglas County, NE, Gage 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, Saunders County, NE, Seward County, NE
The radar
The Des Moines radar (KDMX), 140 km from the middle of the area, began a volume at 22:45 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, 10.7 hours before the alert went out and 144 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
- 55 J/kg
- Mixed-layer CIN
- -226 J/kg
- Mixed-layer LCL
- 527 m above ground
- 0-6 km bulk shear
- 47 kt
- 0-1 km storm-relative helicity
- 301 m²/s²
- 0-3 km storm-relative helicity
- 304 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.3
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 |
|---|---|---|---|---|
| Mar 19, 2:41 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Appanoose, Cass, Clarke, Davis and 19 more | 3 hr |
| Mar 19, 3:29 PM CDT | Tornado Watch | SPC | Adair, Adams, Appanoose, Cass, Clarke, Davis and 23 more | 8 hr |
| Mar 19, 2:01 PM CDT | Mesoscale Discussion | SPC | Cheyenne, Decatur, Norton, Phillips, Rawlins, Sherman and 2 more | 119 min |
| Mar 19, 11:05 AM CDT | Mesoscale Discussion | SPC | Barry, Bollinger, Butler, Cape Girardeau, Carter, Christian and 23 more | 115 min |
| Mar 19, 3:40 PM CDT | Mesoscale Discussion | SPC | Bollinger, Butler, Cape Girardeau, Carter, Madison, Mississippi and 7 more | 65 min |
| Mar 19, 4:06 PM CDT | Tornado Watch | SPC | Bollinger, Butler, Cape Girardeau, Carter, Mississippi, New Madrid and 4 more | 7 hr |
| Mar 19, 5:45 PM CDT | Mesoscale Discussion | SPC | Arthur, Banner, Blaine, Box Butte, Boyd, Brown and 18 more | 3 hr |
Nearby
Mesoscale Discussions in Iowa, 2020Mesoscale Discussions in Nebraska, 2020Mesoscale Discussions in Missouri, 2020Every mesoscale discussion in 2020
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.