Alert archive / Iowa / Special Weather Statements in 2023

Special Weather Statement, NWS Des Moines, IA

July 10, 2023Emmet County, Iowa

NWS Des Moines, IA issued this special weather statement at Jul 10, 2023, 10:31 PM CDT for Emmet County, Iowa. It was in force for 29 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jul 10, 2023, 10:31 PM CDT (03:31 UTC)
Expired: Jul 10, 2023, 11:00 PM CDT
In force: 29 min
Issued by: NWS Des Moines, IA
Hail: 0.88 in
Wind: 30

County Emmet County, IA

The radar

The Minneapolis radar (KMPX), 174 km from the middle of the area, began a volume at 03:32 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

Minneapolis, MN (KMPX), launched 00:00Z, 3.5 hours before the alert went out and 173 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: 1550 J/kg
Mixed-layer CIN: -5 J/kg
Mixed-layer LCL: 2063 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 65 m²/s²
0-3 km storm-relative helicity: 107 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.2

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Jul 10, 6:55 PM CDT, 3 hours 36 minutes earlier.

Area forecast discussion, Jul 10, 6:55 PM CDT, 3 hours 36 minutes before

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Hazardous weather outlook, Jul 10, 2:50 PM CDT, 7 hours 41 minutes before

Hazardous Weather Outlook
National Weather Service Des Moines IA
250 PM CDT Mon Jul 10 2023

IAZ004>007-015>017-023>028-033>039-044>050-057>062-070>075-
081>086-092>097-112000-
Emmet-Kossuth-Winnebago-Worth-Palo Alto-Hancock-Cerro Gordo-
Pocahontas-Humboldt-Wright-Franklin-Butler-Bremer-Sac-Calhoun-
Webster-Hamilton-Hardin-Grundy-Black Hawk-Crawford-Carroll-Greene-
Boone-Story-Marshall-Tama-Audubon-Guthrie-Dallas-Polk-Jasper-
Poweshiek-Cass-Adair-Madison-Warren-Marion-Mahaska-Adams-Union-
Clarke-Lucas-Monroe-Wapello-Taylor-Ringgold-Decatur-Wayne-
Appanoose-Davis-
250 PM CDT Mon Jul 10 2023

This Hazardous Weather Outlook is for portions of central Iowa.

.DAY ONE...This afternoon and tonight

Isolated to scattered strong to severe thunderstorms are forecast
to develop, or move into the area this evening, mainly over the
northern half of Iowa. The main hazards are damaging wind gusts
and hail.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday

A more widespread round of strong to severe thunderstorms exists
Tuesday evening into at least the first half of Wednesday. The
main hazards will be damaging wind gusts, hail, and locally heavy
rainfall.

Additional storm chances will return late in the week, although
the severe potential will need to be refined in the coming days.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed this evening.

Fowle

In the hours before

Special weather statement, Jul 10, 6:38 PM CDT, 3 hours 53 minutes before

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Local storm report, Jul 10, 6:50 PM CDT, 3 hours 41 minutes before

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Local storm report, Jul 10, 7:05 PM CDT, 3 hours 26 minutes before

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Special weather statement, Jul 10, 7:09 PM CDT, 3 hours 22 minutes before

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Special weather statement, Jul 10, 7:15 PM CDT, 3 hours 16 minutes before

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Special weather statement, Jul 10, 10:31 PM CDT, 0 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
Jul 10, 7:09 PM CDT	Special Weather Statement	DMX	Kossuth	36 min
Jul 10, 7:15 PM CDT	Special Weather Statement	DMX	Winnebago, Worth	60 min
Jul 10, 11:03 PM CDT	Special Weather Statement	DMX	Emmet, Winnebago	57 min

Nearby

Special Weather Statements in Iowa, 2023 Every special weather statement in 2023

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.