Hazardous Weather Outlook
Issued by NWS Omaha/Valley, NE

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FLUS43 KOAX 182048
HWOOAX

Hazardous Weather Outlook
National Weather Service Omaha/Valley NE
348 PM CDT Tue Apr 18 2017

IAZ043-055-056-069-079-080-090-091-NEZ011-012-015>018-030>034-
042>045-050>053-065>068-078-088>093-191100-
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-
348 PM CDT Tue Apr 18 2017

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

Isolated thunderstorms could develop over parts of eastern
Nebraska and southwest Iowa this evening. Storm coverage may
increase overnight. Some of these storms will have potential to
produce hail.

.DAYS TWO THROUGH SEVEN...WEDNESDAY NIGHT THROUGH TUESDAY

Some thunderstorms should be ongoing Wednesday morning. It
appears that there may be a brief decrease in activity for the
late morning and early afternoon hours. Thunderstorm coverage and
intensity is expected to increase in the mid to late afternoon
and continue into the evening. Strong to severe storms will be
possible. Large hail and damaging winds would be the main hazards.
There is some potential for a tornado or two from around 5 pm to
8 pm, southeast of a line from Seward to Onawa.

Instability and wind shear will be adequate for some supercell type
storms. As the evening progresses, it appears that there will be
a transition to more outflow dominate storms with strong winds.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected to be needed tonight but may be
needed for parts of the area on Wednesday.

$$



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