Alert archive / Iowa / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 61, NWS Omaha, NE

May 29, 2018Montgomery County, Pottawattamie County, Iowa

NWS Omaha, NE issued this severe thunderstorm warning at May 29, 2018, 4:58 PM CDT for Montgomery County, Pottawattamie County, Iowa. It was in force for 47 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: May 29, 2018, 4:58 PM CDT (21:58 UTC)
Expired: May 29, 2018, 5:45 PM CDT
In force: 47 min
Issued by: NWS Omaha, NE
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Montgomery County, IA, Pottawattamie County, IA

The radar

The Omaha radar (KOAX), 86 km from the middle of the area, began a volume at 21:57 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
May 29, 2:40 PM CDT	Severe Thunderstorm Watch	SPC	7 hr

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 Omaha, NE wrote its last area forecast discussion before this severe thunderstorm warning went out at May 29, 3:02 PM CDT, 1 hour 56 minutes earlier.

Area forecast discussion, May 29, 3:02 PM CDT, 1 hour 56 minutes before

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Hazardous weather outlook, May 29, 3:50 PM CDT, 1 hour 8 minutes before

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In the hours before

Local storm report, May 29, 3:32 PM CDT, 1 hour 26 minutes before

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Local storm report, May 29, 3:36 PM CDT, 1 hour 22 minutes before

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Local storm report, May 29, 3:49 PM CDT, 1 hour 9 minutes before

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Local storm report, May 29, 4:27 PM CDT, 31 minutes before

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Local storm report, May 29, 4:31 PM CDT, 27 minutes before

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Local storm report, May 29, 4:54 PM CDT, 4 minutes before

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The office that day

Everything else NWS Omaha, NE issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 29, 2:33 AM CDT	Special Weather Statement	OAX	Nemaha	12 min
May 29, 2:46 AM CDT	Special Weather Statement	OAX	Cass, Douglas, Johnson, Nemaha, Otoe, Richardson and 2 more	29 min
May 29, 2:55 AM CDT	Severe Thunderstorm Warning	OAX	Pawnee, Richardson	35 min
May 29, 3:16 AM CDT	Special Weather Statement	OAX	Nemaha, Otoe, Richardson	44 min
May 29, 1:47 PM CDT	Special Weather Statement	OAX	Sarpy	28 min
May 29, 2:01 PM CDT	Severe Thunderstorm Warning	OAX	Douglas, Saunders	29 min
May 29, 2:20 PM CDT	Severe Thunderstorm Warning	OAX	Dodge, Douglas, Saunders, Washington	25 min
May 29, 2:45 PM CDT	Severe Thunderstorm Warning	OAX	Burt, Dodge, Washington	17 min
May 29, 3:18 PM CDT	Severe Thunderstorm Warning	OAX	Johnson, Nemaha, Otoe	27 min
May 29, 4:18 PM CDT	Severe Thunderstorm Warning	OAX	Nemaha, Otoe	42 min
May 28, 7:21 PM CDT	Special Weather Statement	OAX	Fremont, Mills	24 min
May 29, 2:17 PM CDT	Special Weather Statement	OAX	Montgomery	28 min
May 29, 2:34 PM CDT	Severe Thunderstorm Warning	OAX	Montgomery, Pottawattamie	26 min
May 29, 2:50 PM CDT	Severe Thunderstorm Warning	OAX	Shelby	14 min
May 29, 3:24 PM CDT	Severe Thunderstorm Warning	OAX	Harrison, Pottawattamie, Shelby	21 min
May 29, 3:27 PM CDT	Severe Thunderstorm Warning	OAX	Harrison, Shelby	18 min
May 29, 3:45 PM CDT	Severe Thunderstorm Warning	OAX	Harrison, Shelby	30 min
May 29, 3:54 PM CDT	Severe Thunderstorm Warning	OAX	Harrison, Pottawattamie	36 min
May 29, 4:20 PM CDT	Severe Thunderstorm Warning	OAX	Montgomery, Page, Pottawattamie	40 min
May 29, 4:28 PM CDT	Severe Thunderstorm Warning	OAX	Harrison	32 min
May 29, 5:37 PM CDT	Areal Flood Advisory	OAX	Montgomery, Page, Pottawattamie	3 hr
May 29, 5:44 PM CDT	Special Weather Statement	OAX	Pottawattamie	46 min
May 28, 7:43 PM CDT	Special Weather Statement	OAX	Holt	32 min

Nearby

Severe Thunderstorm Warnings in Iowa, 2018 Every severe thunderstorm warning in 2018

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.