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Hazardous Weather Outlook (HWO)

Issued by Omaha/Valley, NE (OAX)

FLUS43 KOAX 211619

Hazardous Weather Outlook
National Weather Service Omaha/Valley NE
1119 AM CDT Sat Sep 21 2019

1119 AM CDT Sat Sep 21 2019

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

.DAY ONE...This Afternoon and Tonight

A Flash Flood Watch remains in effect over parts of southeastern 
Nebraska and southern Iowa from 7 PM this evening through 10 AM 
Sunday. Some thunderstorms will be capable of producing high 
rainfall rates culminating in 1 to 3 inches of rainfall with 
locally higher amounts possible.

Severe thunderstorms are possible between 5 PM and midnight
tonight along and south of Interstate 80. The primary threat is
large hail (ping pong ball or larger hail possible), with a lesser
threat for damaging winds or a weak tornado.

Minor to locally moderate flooding will continue along the 
Missouri River above Lewis and Clark Lake, and from near Decatur 
southward past Rulo. 

Thunderstorms will be possible on Saturday. 

.DAYS TWO THROUGH SEVEN...Sunday through Friday

Missouri River levels will continue to rise south south of 
Brownville through Monday, then begin to fall through the week. 
North of Brownville river levels should be on the decline. Minor 
to moderate river flooding will continue along most of the 
Missouri River in Nebraska/Iowa through next week.

There will be a couple chances for thunderstorm activity next
week, with the most likely period for impactful weather occurring 
between Thursday and Saturday.


Spotter activation is possible on Saturday afternoon.