Alert archive / Iowa / Severe Thunderstorm Warnings in 2010

Severe Thunderstorm Warning 211, NWS Des Moines, IA

June 23, 2010Monroe County, Wapello County, Iowa

NWS Des Moines, IA issued this severe thunderstorm warning at Jun 23, 2010, 3:34 PM CDT for Monroe County, Wapello County, Iowa. It was in force for 56 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jun 23, 2010, 3:34 PM CDT (20:34 UTC)
Expired: Jun 23, 2010, 4:30 PM CDT
In force: 56 min
Issued by: NWS Des Moines, IA
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Monroe County, IA, Wapello County, IA

The radar

The Des Moines radar (KDMX), 119 km from the middle of the area, began a volume at 20:36 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jun 23, 2:10 PM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Topeka, KS (KTOP), launched 12:00Z, 8.6 hours before the alert went out and 341 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: 1596 J/kg
Mixed-layer CIN: -292 J/kg
Mixed-layer LCL: 1399 m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: -11 m²/s²
0-3 km storm-relative helicity: 17 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Des Moines, IA wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 23, 1:00 PM CDT, 2 hours 34 minutes earlier.

Area forecast discussion, Jun 23, 1:00 PM CDT, 2 hours 34 minutes before

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Hazardous weather outlook, Jun 23, 2:36 PM CDT, 58 minutes before

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In the hours before

Local storm report, Jun 23, 10:48 AM CDT, 4 hours 46 minutes before

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Local storm report, Jun 23, 11:07 AM CDT, 4 hours 27 minutes before

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Local storm report, Jun 23, 1:24 PM CDT, 2 hours 10 minutes before

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The office that day

Everything else NWS Des Moines, IA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 22, 8:53 PM CDT	Tornado Warning	DMX	Calhoun, Sac	37 min
Jun 22, 9:02 PM CDT	Tornado Warning	DMX	Humboldt, Pocahontas	43 min
Jun 22, 9:06 PM CDT	River Flood Warning	DMX	Wright	9 days
Jun 22, 9:06 PM CDT	River Flood Warning	DMX	Marshall	44 hr
Jun 22, 9:06 PM CDT	River Flood Warning	DMX	Black Hawk	9 days
Jun 22, 9:06 PM CDT	River Flood Warning	DMX	Black Hawk	7 days
Jun 22, 9:06 PM CDT	River Flood Warning	DMX	Black Hawk, Bremer, Butler	37 hr
Jun 22, 9:06 PM CDT	River Flood Warning	DMX	Black Hawk, Butler	37 hr
Jun 22, 9:06 PM CDT	River Flood Warning	DMX	Polk, Story	12 hr
Jun 22, 9:06 PM CDT	River Flood Warning	DMX	Jasper, Marion, Polk	12 hr
Jun 22, 9:06 PM CDT	River Flood Warning	DMX	Mahaska	59 hr
Jun 22, 9:06 PM CDT	River Flood Warning	DMX	Story	12 hr
Jun 22, 9:06 PM CDT	River Flood Warning	DMX	Humboldt	19 days
Jun 22, 9:06 PM CDT	River Flood Warning	DMX	Humboldt, Kossuth	13 days
Jun 22, 9:06 PM CDT	River Flood Warning	DMX	Webster	38 hr
Jun 22, 9:06 PM CDT	River Flood Warning	DMX	Polk	13 hr
Jun 22, 9:06 PM CDT	River Flood Warning	DMX	Dallas, Greene	13 hr
Jun 22, 9:06 PM CDT	River Flood Warning	DMX	Dallas, Polk	13 hr
Jun 22, 9:13 PM CDT	Tornado Warning	DMX	Calhoun, Pocahontas, Sac	32 min
Jun 22, 9:28 PM CDT	Severe Thunderstorm Warning	DMX	Kossuth, Winnebago	47 min
Jun 22, 9:31 PM CDT	Tornado Warning	DMX	Calhoun, Pocahontas, Sac	29 min
Jun 22, 9:45 PM CDT	Tornado Warning	DMX	Humboldt, Webster, Wright	45 min
Jun 22, 9:55 PM CDT	Tornado Warning	DMX	Calhoun, Humboldt, Pocahontas, Webster	35 min
Jun 22, 10:06 PM CDT	Severe Thunderstorm Warning	DMX	Hancock, Kossuth, Palo Alto	19 min
Jun 22, 10:17 PM CDT	Tornado Warning	DMX	Hamilton, Humboldt, Webster, Wright	43 min
Jun 22, 10:25 PM CDT	Tornado Warning	DMX	Calhoun, Pocahontas, Webster	50 min
Jun 22, 10:39 PM CDT	Severe Thunderstorm Warning	DMX	Humboldt, Kossuth, Palo Alto, Pocahontas	51 min
Jun 22, 10:43 PM CDT	Severe Thunderstorm Warning	DMX	Franklin, Wright	47 min
Jun 22, 10:55 PM CDT	Severe Thunderstorm Warning	DMX	Franklin, Hamilton, Wright	50 min
Jun 22, 10:57 PM CDT	Tornado Warning	DMX	Franklin, Hamilton, Wright	48 min
Jun 22, 11:00 PM CDT	Tornado Warning	DMX	Hamilton, Humboldt, Webster, Wright	45 min
Jun 22, 11:30 PM CDT	Severe Thunderstorm Warning	DMX	Franklin, Wright	60 min
Jun 22, 11:30 PM CDT	Severe Thunderstorm Warning	DMX	Audubon, Carroll, Cass, Guthrie	45 min
Jun 22, 11:35 PM CDT	Severe Thunderstorm Warning	DMX	Carroll, Crawford, Sac	40 min
Jun 22, 11:44 PM CDT	Flash Flood Warning	DMX	Humboldt, Webster, Wright	6 hr
Jun 22, 11:45 PM CDT	Tornado Warning	DMX	Franklin, Hamilton, Hardin, Wright	45 min
Jun 22, 11:46 PM CDT	Tornado Warning	DMX	Hamilton, Wright	13 min
Jun 23, 12:04 AM CDT	Severe Thunderstorm Warning	DMX	Adair, Audubon, Carroll, Dallas, Greene, Guthrie	41 min
Jun 23, 12:24 AM CDT	Severe Thunderstorm Warning	DMX	Emmet, Palo Alto	51 min
Jun 23, 12:28 AM CDT	Severe Thunderstorm Warning	DMX	Butler, Franklin, Grundy, Hardin	62 min
Jun 23, 12:57 AM CDT	Flash Flood Warning	DMX	Franklin	6 hr
Jun 23, 1:03 AM CDT	Flash Flood Warning	DMX	Hancock, Kossuth, Palo Alto	4 hr
Jun 23, 1:32 AM CDT	Flash Flood Warning	DMX	Butler, Cerro Gordo, Franklin	4 hr
Jun 23, 1:32 AM CDT	Severe Thunderstorm Warning	DMX	Black Hawk, Bremer, Butler, Franklin	58 min
Jun 23, 2:13 AM CDT	Severe Thunderstorm Warning	DMX	Black Hawk, Butler, Grundy	32 min
Jun 23, 4:19 AM CDT	Severe Thunderstorm Warning	DMX	Adair, Audubon, Cass, Guthrie	41 min
Jun 23, 5:29 AM CDT	Areal Flood Warning	DMX	Butler, Franklin, Humboldt, Wright	24 hr
Jun 23, 10:17 AM CDT	River Flood Warning	DMX	Hamilton, Webster	7 days

Nearby

Severe Thunderstorm Warnings in Iowa, 2010 Every severe thunderstorm warning in 2010

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.