Alert archive / Nebraska / River Flood Warnings in 2018

River Flood Warning 5, NWS Omaha, NE

June 20, 2018Otoe County, Nebraska; Fremont County, Iowa

NWS Omaha, NE issued this river flood warning at Jun 20, 2018, 12:58 AM CDT for Otoe County, Nebraska; Fremont County, Iowa. It took effect at Jun 20, 2018, 7:00 PM CDT. It was in force for 19 hr.

The area

The counties it named.

The facts

Issued: Jun 20, 2018, 12:58 AM CDT (05:58 UTC)
In effect from: Jun 20, 2018, 7:00 PM CDT
Expired: Jun 21, 2018, 1:52 PM CDT
In force: 19 hr
Issued by: NWS Omaha, NE
Area: Storm-based polygon
Flood severity: Minor

Counties Fremont County, IA, Otoe County, NE

The radar

The Omaha radar (KOAX), 81 km from the middle of the area, began a volume at 06:02 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 river

Written for the forecast point Missouri River at Nebraska City (NEBN1).

Action stage: 17 ft
Minor stage: 18 ft
Moderate stage: 23 ft
Major stage: 27 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 06807000, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.

What forecasters said that day

The local office's own words before this river flood 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 river flood warning went out at Jun 20, 12:01 AM CDT, 57 minutes earlier.

Area forecast discussion, Jun 20, 12:01 AM CDT, 57 minutes before

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Hazardous weather outlook, Jun 19, 10:46 PM CDT, 2 hours 12 minutes before

Hazardous Weather Outlook
National Weather Service Omaha/Valley NE
1046 PM CDT Tue Jun 19 2018

IAZ043-055-056-069-079-080-090-091-NEZ011-012-015>018-030>034-
042>045-050>053-065>068-078-088>093-201800-
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-
1046 PM CDT Tue Jun 19 2018

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

Some strong thunderstorms will occur across much of eastern
Nebraska and southwest Iowa overnight, with areas of heavy rain.
Flooding could develop in areas that received over 3 inches of
rain Monday night and Tuesday morning. A flash flood watch is in
effect for portions of the area. A few storms may be severe with
damaging winds and hail.

Thunderstorms will be possible again Wednesday, but the intensity
is expected to be weaker.

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

Thunderstorm chances will remain in the forecast Wednesday night
into Thursday night. Occasional periods of heavy rain are
possible. Thunderstorm chances return to part of the area Saturday
and Saturday night and continue into early next week.

.SPOTTER INFORMATION STATEMENT...

Storm spotter activation is not expected to be needed overnight
or on Wednesday, but please pass along any reports of severe
weather or flooding.

In the hours before

Local storm report, Jun 19, 8:19 PM CDT, 4 hours 39 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
819 PM CDT TUE JUN 19 2018

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

0815 PM     FLASH FLOOD      REYNOLDS                40.06N 97.33W
06/19/2018                   JEFFERSON          NE   EMERGENCY MNGR

            REPORTS OF SEVERAL ROADS AND A FEW BRIDGES
            WITH WATER OVER THEM.

&&

HD

Special weather statement, Jun 19, 9:20 PM CDT, 3 hours 38 minutes before

Special Weather Statement
National Weather Service Omaha/Valley Nebraska
920 PM CDT TUE JUN 19 2018

NEZ044-045-050>052-200245-
Saunders NE-Butler NE-Washington NE-Douglas NE-Dodge NE-
920 PM CDT TUE JUN 19 2018

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN WASHINGTON...
SOUTHEASTERN DODGE...NORTHWESTERN DOUGLAS...EAST CENTRAL BUTLER AND
NORTHERN SAUNDERS COUNTIES UNTIL 945 PM CDT...

At 919 PM CDT, Doppler radar was tracking a strong thunderstorm near
Prague, or 28 miles east of Columbus, moving east at 45 mph.

Wind gusts of 50 to 55 mph will be possible with this storm.

Locations impacted include...
Fremont, Valley, Arlington, Cedar Bluffs, Inglewood, Prague, Morse
Bluff, Malmo, Leshara, Colon, Linwood, Fremont Lakes State Recreation
Area, Camp Eagle and Camp Cedars.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

Persons in campgrounds should consider seeking sturdy shelter until
this storm passes.

&&

LAT...LON 4127 9692 4143 9693 4150 9636 4125 9632
TIME...MOT...LOC 0219Z 267DEG 40KT 4135 9681

SMITH

Special weather statement, Jun 19, 9:47 PM CDT, 3 hours 11 minutes before

Special Weather Statement
National Weather Service Omaha/Valley Nebraska
947 PM CDT TUE JUN 19 2018

IAZ080-200330-
Montgomery IA-
947 PM CDT TUE JUN 19 2018

...SIGNIFICANT WEATHER ADVISORY FOR MONTGOMERY COUNTY UNTIL 1030 PM
CDT...

At 946 PM CDT, trained weather spotters reported a strong
thunderstorm near Red Oak, or 27 miles southwest of Atlantic, moving
east at 15 mph.

Half inch hail and wind gusts up to 50 mph will be possible with this
storm.

Locations impacted include...
Red Oak, Villisca, Stanton, Elliott, Grant and Viking Lake State
Park.

LAT...LON 4094 9535 4111 9538 4116 9510 4116 9493
      4093 9493
TIME...MOT...LOC 0246Z 261DEG 12KT 4104 9527

MILLER

Local storm report, Jun 19, 10:29 PM CDT, 2 hours 29 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
1029 PM CDT TUE JUN 19 2018

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

1028 PM     HEAVY RAIN       2 SW FAIRBURY           40.12N 97.21W
06/19/2018  M4.00 INCH       JEFFERSON          NE   EMERGENCY MNGR

&&

HD

Local storm report, Jun 19, 10:30 PM CDT, 2 hours 28 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
1030 PM CDT TUE JUN 19 2018

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

1030 PM     HEAVY RAIN       1 N FAIRBURY            40.15N 97.18W
06/19/2018  M3.20 INCH       JEFFERSON          NE   EMERGENCY MNGR

&&

HD

Special weather statement, Jun 19, 11:09 PM CDT, 1 hour 49 minutes before

Special Weather Statement
National Weather Service Omaha/Valley Nebraska
1109 PM CDT TUE JUN 19 2018

IAZ055-056-069-079-080-090-091-200445-
Pottawattamie IA-Mills IA-Page IA-Fremont IA-Montgomery IA-Shelby IA-
Harrison IA-
1109 PM CDT TUE JUN 19 2018

...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN FREMONT...WESTERN
MONTGOMERY...MILLS...POTTAWATTAMIE...SOUTHEASTERN HARRISON...WESTERN
SHELBY AND NORTHWESTERN PAGE COUNTIES UNTIL 1145 PM CDT...

At 1109 PM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from 3 miles southwest of Logan to 6 miles northwest
of Treynor to 7 miles northwest of Sidney. Movement was east at 30
mph.

Winds in excess of 40 mph will be possible with these storms.

Locations impacted include...
Eastern Council Bluffs, Glenwood, Shenandoah, Missouri Valley, Logan,
Oakland, Malvern, Treynor, Underwood, Carson, Essex, Shelby, Minden,
Emerson, Persia, Macedonia, Woodbine, Tabor, Neola and Crescent.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall is also occurring with these storms, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

&&

LAT...LON 4185 9546 4069 9525 4077 9573 4168 9593
TIME...MOT...LOC 0409Z 263DEG 27KT 4163 9585 4128 9571 4082 9575

SMITH

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 19, 7:15 PM CDT	Areal Flood Advisory	OAX	Lancaster	3 hr
Jun 19, 7:47 PM CDT	Areal Flood Advisory	OAX	Seward	3 hr
Jun 19, 7:56 PM CDT	Areal Flood Advisory	OAX	Jefferson	64 min
Jun 19, 8:48 PM CDT	Flash Flood Warning	OAX	Jefferson	6 hr
Jun 19, 9:20 PM CDT	Special Weather Statement	OAX	Saunders	25 min
Jun 19, 11:13 PM CDT	Areal Flood Advisory	OAX	Gage	5 hr
Jun 19, 11:24 PM CDT	Areal Flood Advisory	OAX	Cass, Douglas, Sarpy	5 hr
Jun 19, 11:29 PM CDT	Flash Flood Warning	OAX	Washington	4 hr
Jun 20, 2:39 AM CDT	Areal Flood Warning	OAX	Jefferson	6 hr
Jun 20, 4:30 AM CDT	Flash Flood Watch	OAX	Burt, Cedar, Cuming, Knox, Thurston, Wayne	24 hr
Jun 20, 10:16 AM CDT	River Flood Warning	OAX	Cass	24 hr
Jun 20, 10:25 AM CDT	River Flood Warning	OAX	Pierce	23 hr
Jun 20, 10:41 AM CDT	Areal Flood Advisory	OAX	Jefferson	5 hr
Jun 20, 6:22 PM CDT	River Flood Warning	OAX	Saunders	31 hr
Jun 19, 9:47 PM CDT	Special Weather Statement	OAX	Montgomery	43 min
Jun 19, 9:53 PM CDT	Areal Flood Advisory	OAX	Mills, Pottawattamie	5 hr
Jun 19, 11:09 PM CDT	Special Weather Statement	OAX	Harrison, Mills, Pottawattamie	36 min

Nearby

River Flood Warnings in Nebraska, 2018 River Flood Warnings in Iowa, 2018 Every river flood 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; the gauge from the NWS water service and the USGS.