Harrison Severe Watches & Warnings NOAA Weather Radio

Watches & Warnings

Areal Flood Warning, Flash Flood Warning
Issued: 8:54 AM CDT Aug. 20, 2018 – National Weather Service

The National Weather Service in Omaha has issued a

* Flood Warning for small streams in...
Monona County in west central Iowa...
Montgomery County in southwestern Iowa...
Mills County in southwestern Iowa...
Pottawattamie County in southwestern Iowa...
Harrison County in southwestern Iowa...
Shelby County in southwestern Iowa...
Burt County in east central Nebraska...
eastern Cuming County in northeastern Nebraska...
Washington County in east central Nebraska...
northeastern Dodge County in east central Nebraska...
Thurston County in northeastern Nebraska...

* until 245 PM CDT.

* At 851 am CDT, Doppler radar and automated rain gauges indicated
that heavy rain has fallen and continues to fall over the area.
The heavy rain will cause flooding. Rain should end early this
afternoon, however flooding will continue until the rain can work
through the river systems. Up to three inches of rain have already
fallen.

* Some locations that will experience flooding include...
eastern Omaha, Council Bluffs, Blair, Red Oak, Glenwood, Harlan,
Onawa, Missouri Valley, Tekamah, Logan, Avoca, Arlington, Malvern,
Treynor, Underwood, Fort Calhoun, Scribner, Lyons, Hooper and
Carson.

Precautionary/preparedness actions...

Stay away or be swept away. River banks and culverts can become
unstable and unsafe.


Lat... Lon 4094 9584 4118 9584 4120 9593 4130 9593
      4130 9587 4135 9596 4138 9593 4139 9623
      4161 9668 4225 9664 4228 9637 4222 9633
      4221 9567 4186 9567 4186 9510 4151 9504
      4150 9516 4116 9516 4116 9493 4094 9493


Pearson


824 am CDT Mon Aug 20 2018

... The Flash Flood Warning remains in effect until 1100 am CDT for
central Pottawattamie... Harrison and southwestern Shelby counties...

At 823 am CDT, Doppler radar indicated heavy rain continued across
most of the warned area. 4 to 6 inches of rain have been reported.
Flash flooding may be occurring in some areas.

Some locations that will experience flooding include...
Missouri Valley, Logan, Oakland, Avoca, Carson, Shelby, Minden,
Persia, Woodbine, Neola, Hancock, Portsmouth, Magnolia, Tennant, farm
creek public wildlife area, Willow Lake Recreation Area, Botna Bend
park, Arrowhead Park and historical Village welcome center.

Precautionary/preparedness actions...

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

In hilly terrain there are hundreds of low water crossings which are
potentially dangerous in heavy rain. Do not attempt to cross flooded
roads. Find an alternate Route.


Lat... Lon 4124 9516 4116 9537 4142 9557 4142 9593
      4146 9592 4149 9600 4181 9594 4178 9556
      4125 9515


Dewald


Flash Flood Watch
Issued: 3:08 AM CDT Aug. 20, 2018 – National Weather Service

... Flash Flood Watch remains in effect until noon CDT today...

The Flash Flood Watch continues for

* portions of Iowa and Nebraska, including the following areas,
in Iowa, Fremont, Harrison, Mills, Monona, Montgomery, Page,
Pottawattamie, and Shelby. In Nebraska, Burt, Cass, Cuming,
Dodge, Douglas, Johnson, Lancaster, Nemaha, Otoe, Pawnee,
Richardson, Sarpy, Saunders, Thurston, and Washington.

* Until noon CDT today

* areas of heavy rain expected, with widespread additional amounts
ranging from 1 to 3 inches. Locally higher amounts are possible.
The heaviest rain is expected along and east of the Missouri
River this morning.

* This will cause rises of streams. If rainfall rates are high
enough once the ground becomes saturated, it could lead to
flash flooding, especially in urban areas. This includes
Omaha, Council Bluffs and Lincoln.

Precautionary/preparedness actions...

A Flash Flood Watch means that conditions may develop that lead
to flash flooding. Flash flooding is a very dangerous situation.

You should monitor later forecasts and be prepared to take action
should flash flood warnings be issued.




Flash Flood Watch
Issued: 3:08 AM CDT Aug. 20, 2018 – National Weather Service

... Flash Flood Watch remains in effect until noon CDT today...

The Flash Flood Watch continues for

* portions of Iowa and Nebraska, including the following areas,
in Iowa, Fremont, Harrison, Mills, Monona, Montgomery, Page,
Pottawattamie, and Shelby. In Nebraska, Burt, Cass, Cuming,
Dodge, Douglas, Johnson, Lancaster, Nemaha, Otoe, Pawnee,
Richardson, Sarpy, Saunders, Thurston, and Washington.

* Until noon CDT today

* areas of heavy rain expected, with widespread additional amounts
ranging from 1 to 3 inches. Locally higher amounts are possible.
The heaviest rain is expected along and east of the Missouri
River this morning.

* This will cause rises of streams. If rainfall rates are high
enough once the ground becomes saturated, it could lead to
flash flooding, especially in urban areas. This includes
Omaha, Council Bluffs and Lincoln.

Precautionary/preparedness actions...

A Flash Flood Watch means that conditions may develop that lead
to flash flooding. Flash flooding is a very dangerous situation.

You should monitor later forecasts and be prepared to take action
should flash flood warnings be issued.




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