Alert archive / Iowa / Severe Thunderstorm Warnings in 2022

Severe Thunderstorm Warning 196, NWS Omaha, NE

June 15, 2022Mills County, Montgomery County, Pottawattamie County, Iowa

NWS Omaha, NE issued this severe thunderstorm warning at Jun 15, 2022, 12:40 AM CDT for Mills County, Montgomery County, Pottawattamie County, Iowa. It was in force for 22 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 15, 2022, 12:40 AM CDT (05:40 UTC)
Expired: Jun 15, 2022, 1:02 AM CDT
In force: 22 min
Issued by: NWS Omaha, NE
Area: Storm-based polygon
Damage threat: Considerable
Hail: 1.0 in
Wind: 70.0 mph

Counties Mills County, IA, Montgomery County, IA, Pottawattamie County, IA

The radar

The Omaha radar (KOAX), 80 km from the middle of the area, began a volume at 05:42 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 14, 9:23 PM CDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Omaha, NE (KOAX), launched 00:00Z, 5.7 hours before the alert went out and 81 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: 1265 J/kg
Mixed-layer CIN: -109 J/kg
Mixed-layer LCL: 2112 m above ground
0-6 km bulk shear: 52 kt
0-1 km storm-relative helicity: 5 m²/s²
0-3 km storm-relative helicity: 230 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 4.7

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 Omaha, NE wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 15, 12:26 AM CDT, 14 minutes earlier.

Area forecast discussion, Jun 15, 12:26 AM CDT, 14 minutes before

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Hazardous weather outlook, Jun 14, 7:14 PM CDT, 5 hours 26 minutes before

Hazardous Weather Outlook
National Weather Service Omaha/Valley NE
714 PM CDT Tue Jun 14 2022

IAZ043-055-056-069-079-080-090-091-NEZ011-012-015>018-030>034-
042>045-050>053-065>068-078-088>093-151415-
Monona-Harrison-Shelby-Pottawattamie-Mills-Montgomery-Fremont-
Page-Knox-Cedar-Thurston-Antelope-Pierce-Wayne-Boone-Madison-
Stanton-Cuming-Burt-Platte-Colfax-Dodge-Washington-Butler-
Saunders-Douglas-Sarpy-Seward-Lancaster-Cass-Otoe-Saline-
Jefferson-Gage-Johnson-Nemaha-Pawnee-Richardson-
714 PM CDT Tue Jun 14 2022

This Hazardous Weather Outlook is for portions of southwest
Iowa...west central Iowa...east central Nebraska...northeast
Nebraska and southeast Nebraska.

.DAY ONE...Tonight and Wednesday

Scattered thunderstorms developing along a frontal boundary over
southeast Nebraska and southwest Iowa, will continue to drifting
northward through the overnight hours. Large hail, damaging winds,
and locally heavy rainfall are the primary hazards.

.DAYS TWO THROUGH SEVEN...Wednesday night through Tuesday

Thunderstorms may redevelop on Thursday evening south of the
Platte River. Severe weather is possible.

Hot and humid weather can be expected Saturday through Monday
with daytime highs again in the upper 90s to lower 100s.

.SPOTTER INFORMATION STATEMENT...

Widespread spotter activation will probably not be needed tonight,
but spotters are encouraged to report severe weather if it
develops in your area.

In the hours before

Local storm report, Jun 15, 12:03 AM CDT, 37 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
1203 AM CDT WED JUN 15 2022

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1157 PM     TSTM WND GST     1 WSW OFFUTT AFB        41.10N 95.94W
06/14/2022  E75 MPH          SARPY              NE   PUBLIC

&&

Local storm report, Jun 15, 12:06 AM CDT, 34 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
1206 AM CDT WED JUN 15 2022

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1145 PM     TSTM WND DMG     GREENWOOD               40.96N 96.44W
06/14/2022                   CASS               NE   EMERGENCY MNGR

            VERY LARGE TREES DOWN.

&&

Local storm report, Jun 15, 12:12 AM CDT, 28 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
1212 AM CDT WED JUN 15 2022

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1212 AM     TSTM WND DMG     GLENWOOD                41.05N 95.74W
06/15/2022                   MILLS              IA   PUBLIC

            POWER LINES DOWN. POWER OUT IN GLENWOOD.

&&

Local storm report, Jun 15, 12:17 AM CDT, 23 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
1217 AM CDT WED JUN 15 2022

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1216 AM     TSTM WND GST     5 ENE COUNCIL BLUFFS    41.26N 95.76W
06/15/2022  M75 MPH          POTTAWATTAMIE      IA   AWOS

&&

Local storm report, Jun 15, 12:20 AM CDT, 20 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
1220 AM CDT WED JUN 15 2022

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1030 PM     TSTM WND GST     4 N MILFORD             40.83N 97.06W
06/14/2022  E61 MPH          SEWARD             NE   PUBLIC

            PERSONAL WEATHER STATION.

&&

Local storm report, Jun 15, 12:40 AM CDT, 0 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
Jun 14, 7:33 PM CDT	Severe Thunderstorm Warning	OAX	Gage, Jefferson, Johnson	42 min
Jun 14, 8:11 PM CDT	Severe Thunderstorm Warning	OAX	Gage, Johnson	17 min
Jun 14, 8:35 PM CDT	Severe Thunderstorm Warning	OAX	Cass	40 min
Jun 14, 9:54 PM CDT	Severe Thunderstorm Warning Considerable damage threat	OAX	Butler, Seward	66 min
Jun 14, 10:30 PM CDT	Tornado Warning	OAX	Lancaster, Seward	34 min
Jun 14, 11:01 PM CDT	Severe Thunderstorm Warning Considerable damage threat	OAX	Cass, Lancaster, Sarpy, Saunders	44 min
Jun 14, 11:09 PM CDT	Severe Thunderstorm Warning Considerable damage threat	OAX	Cass, Lancaster, Otoe	36 min
Jun 14, 11:27 PM CDT	Tornado Warning	OAX	Cass, Sarpy	21 min
Jun 14, 11:39 PM CDT	Severe Thunderstorm Warning	OAX	Cass, Douglas, Otoe, Sarpy, Saunders	51 min
Jun 15, 12:08 AM CDT	Areal Flood Advisory	OAX	Douglas, Sarpy	58 min
Jun 15, 12:35 AM CDT	Severe Thunderstorm Warning Considerable damage threat	OAX	Butler, Lancaster, Seward	40 min
Jun 15, 1:00 AM CDT	Flash Flood Warning	OAX	Cass, Douglas, Lancaster, Sarpy, Saunders	3 hr
Jun 15, 1:00 AM CDT	Severe Thunderstorm Warning	OAX	Cedar, Knox	25 min
Jun 15, 1:12 AM CDT	Severe Thunderstorm Warning Considerable damage threat	OAX	Butler, Lancaster, Saunders, Seward	48 min
Jun 15, 1:52 AM CDT	Severe Thunderstorm Warning	OAX	Dodge, Douglas, Saunders, Washington	17 min
Jun 15, 2:23 AM CDT	Special Weather Statement	OAX	Butler	22 min
Jun 15, 2:34 AM CDT	Special Weather Statement	OAX	Butler	11 min
Jun 15, 2:47 AM CDT	Special Weather Statement	OAX	Saunders	13 min
Jun 15, 2:59 AM CDT	Special Weather Statement	OAX	Saunders	16 min
Jun 15, 3:04 AM CDT	Severe Thunderstorm Warning	OAX	Butler, Colfax, Platte	41 min
Jun 15, 3:37 AM CDT	Severe Thunderstorm Warning	OAX	Butler, Colfax, Dodge, Saunders	42 min
Jun 15, 4:07 AM CDT	Severe Thunderstorm Warning	OAX	Burt, Dodge, Washington	30 min
Jun 14, 9:07 PM CDT	Severe Thunderstorm Warning Considerable damage threat	OAX	Mills, Montgomery, Pottawattamie	38 min
Jun 14, 9:39 PM CDT	Severe Thunderstorm Warning Considerable damage threat	OAX	Montgomery, Pottawattamie	19 min
Jun 14, 10:10 PM CDT	Severe Thunderstorm Warning	OAX	Pottawattamie	11 min
Jun 15, 12:02 AM CDT	Severe Thunderstorm Warning Destructive damage threat	OAX	Fremont, Mills, Montgomery, Page, Pottawattamie	43 min
Jun 15, 12:11 AM CDT	Tornado Warning	OAX	Mills, Montgomery	17 min
Jun 15, 12:22 AM CDT	Tornado Warning	OAX	Mills, Pottawattamie	21 min

Nearby

Severe Thunderstorm Warnings in Iowa, 2022 Every severe thunderstorm warning in 2022

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.