Preview of NWS' New Version of Forecast
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Hazardous Weather Outlook (HWO)

Issued by Omaha/Valley, NE (OAX)

FLUS43 KOAX 202108

Hazardous Weather Outlook
National Weather Service Omaha/Valley NE
408 PM CDT Fri Sep 20 2019

408 PM CDT Fri Sep 20 2019

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 Saturday

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...Saturday night through Friday

A Flash Flood Watch for portions of southwest Iowa and southeast  
Nebraska on Saturday night. 

Thunderstorms are expected to increase in areal coverage  
Saturday afternoon and evening over southeast Nebraska and 
southwest Iowa. Because a of a very slow moving boundary,there is 
a chance excessive rainfall may accompany a few storms through 
Saturday night, thus leading to the potential for flash flooding.
Rainfall totals from one to two inches will be possible in some 
locations by early Sunday morning.

River levels along the Missouri River will continue to rise south
of Omaha. Minor flooding is expected near Omaha, with moderate 
flooding occurring south of Nebraska City. Additional rainfall 
Saturday night may impact river levels at Brownville and Rulo, 
and future river forecasts may need to be adjusted to account for 
this. Anyone with travel plans along Interstate 29 or interests 
near the Missouri River should monitor the forecast closely.

Small thunderstorm chances will continue through the majority of 
of time this week. 


Spotter activation is possible on Saturday afternoon.