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FLUS43 KOAX 172251
HWOOAX

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
551 PM CDT FRI MAY 17 2013

IAZ043-055-056-069-079-080-090-091-NEZ011-012-015>018-030>034-
042>045-050>053-065>068-078-088>093-181300-
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-
551 PM CDT FRI MAY 17 2013

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EASTERN NEBRASKA
AND SOUTHWEST IOWA.

.DAY ONE...TONIGHT AND SATURDAY

THUNDERSTORMS ARE EXPECTED TO DEVELOP SATURDAY AFTERNOON OVER THE
WESTERN HIGH PLAINS TOWARD CENTRAL NEBRASKA. SOME OF THESE STORMS
COULD MOVE TOWARD COLUMBUS...NORFOLK AND ALBION BY LATE AFTERNOON.
THE STRONGER OF THESE STORMS COULD PRODUCE LARGE HAIL AND
DAMAGING WINDS. A LARGE UPPER LEVEL SYSTEM APPROACHING THE REGION
WILL COMBINE WITH WARM AND UNSTABLE CONDITIONS AND MODERATE WIND
SHEAR DURING THE AFTERNOON TO PRODUCE THE INCREASING SEVERE
WEATHER THREAT.

.DAYS TWO THROUGH SEVEN...SATURDAY NIGHT THROUGH FRIDAY

THUNDERSTORMS...POSSIBLY SEVERE...COULD MOVE EAST ACROSS MUCH OF
THE AREA SATURDAY NIGHT WITH REDEVELOPMENT LIKELY SUNDAY AS THE
UPPER LEVEL SYSTEM CONTINUES MOVING EAST. THE GREATEST RISK OF
SEVERE WEATHER SATURDAY NIGHT WOULD APPEAR TO BE WEST OF OMAHA AND
LINCOLN...BUT A SEVERE STORM CANNOT BE RULED OUT ANYWHERE OVER THE
REGION. LARGE HAIL AND DAMAGING WINDS WOULD APPEAR TO BE THE
PRIMARY HAZARDS SATURDAY NIGHT.

ON SUNDAY THE UPPER LEVEL SYSTEM WILL LIKELY CAUSE LOW PRESSURE TO
DEEPEN SOMEWHERE OVER EASTERN NEBRASKA DURING THE AFTERNOON. THIS
COULD SET THE STAGE FOR ANOTHER ROUND OF SEVERE WEATHER. BESIDES
VERY LARGE HAIL AND DAMAGING WINDS...A DRY-LINE AND WARM FRONT
COULD RESIDE OR MOVE INTO THE REGION PRODUCING THE RISK FOR
TORNADO DEVELOPMENT. RIGHT NOW THE GREATEST INSTABILITY AND SHEAR
BY AFTERNOON WOULD APPEAR TO BE LOCATED OVER SOUTHEAST NEBRASKA
AND SOUTHWEST IOWA. HOWEVER...LOCATION OF LOW LEVEL BOUNDARIES
AND EXACTLY WHERE THE GREATEST INSTABILITY AND SHEAR WILL BE
LOCATED ARE UNCERTAIN. THUS...WATCH FOR LATER SEVERE WEATHER
OUTLOOKS REGARDING ADDITIONAL TIMING AND COVERAGE INFORMATION.

.SPOTTER INFORMATION STATEMENT...

THERE IS A SMALL CHANCE THAT SPOTTERS COULD BE NEEDED BY LATE
SATURDAY AFTERNOON...GENERALLY WEST OF A DAVID CITY TO WAYNE LINE.

$$
CHERMOK