Alert archive / Iowa / Mesoscale Discussions in 2016

Mesoscale Discussion 748

May 26, 2016Fremont County, Page County, Taylor County, Iowa; Atchison County, Nodaway County, Worth County, Missouri; Nemaha County, Nebraska

The Storm Prediction Center issued this mesoscale discussion at May 26, 2016, 5:27 PM CDT for Fremont County, Page County, Taylor County, Iowa; Atchison County, Nodaway County, Worth County, Missouri; Nemaha County, Nebraska. It was in force for 63 min.

The area

The outline as issued.

The facts

Issued: May 26, 2016, 5:27 PM CDT (22:27 UTC)
Expired: May 26, 2016, 6:30 PM CDT
In force: 63 min
Issued by: the Storm Prediction Center

Counties Fremont County, IA, Page County, IA, Taylor County, IA, Atchison County, MO, Nodaway County, MO, Worth County, MO, Nemaha County, NE

The radar

The Omaha radar (KOAX), 127 km from the middle of the area, began a volume at 22:28 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, 10.5 hours before the alert went out and 127 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1783 m above ground
0-6 km bulk shear: 52 kt
0-1 km storm-relative helicity: -107 m²/s²
0-3 km storm-relative helicity: -78 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

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SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 25, 8:36 PM CDT	Severe Thunderstorm Watch	SPC	Cherokee, Ida, Monona, O'Brien, Plymouth, Sioux and 1 more	5 hr
May 25, 11:34 PM CDT	Mesoscale Discussion	SPC	Audubon, Buena Vista, Calhoun, Carroll, Cherokee, Clay and 20 more	86 min
May 26, 10:33 AM CDT	Mesoscale Discussion	SPC	Fremont, Page, Taylor	57 min
May 26, 1:53 PM CDT	Tornado Watch	SPC	Fremont, Harrison, Mills, Montgomery, Page, Pottawattamie and 1 more	8 hr
May 26, 2:09 PM CDT	Tornado Watch	SPC	Adair, Adams, Audubon, Cass, Clarke, Dallas and 10 more	8 hr
May 25, 10:07 PM CDT	Mesoscale Discussion	SPC	Andrew, Buchanan, Cass, Clay, Jackson, Platte	83 min
May 25, 11:08 PM CDT	Severe Thunderstorm Watch	SPC	Andrew, Atchison, Bates, Buchanan, Caldwell, Carroll and 23 more	5 hr
May 26, 1:45 PM CDT	Mesoscale Discussion	SPC	New Madrid, Pemiscot	2 hr
May 26, 4:56 PM CDT	Mesoscale Discussion	SPC	Benton, Boone, Caldwell, Callaway, Camden, Carroll and 22 more	94 min
May 26, 5:29 PM CDT	Severe Thunderstorm Watch	SPC	Audrain, Benton, Boone, Callaway, Camden, Cole and 15 more	6 hr
May 25, 7:23 PM CDT	Mesoscale Discussion	SPC	Dawson, Frontier, Furnas, Gosper, Hayes, Hitchcock and 3 more	97 min
May 26, 6:46 PM CDT	Mesoscale Discussion	SPC	Dundy, Hitchcock, Red Willow	59 min

Nearby

Mesoscale Discussions in Iowa, 2016 Mesoscale Discussions in Missouri, 2016 Mesoscale Discussions in Nebraska, 2016 Every mesoscale discussion in 2016

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.