SKYSCAN FORECAST for Tuesday, June 24, 2014 from Freese-Notis Meteorologist Joshua Senechal.

TODAY: Patchy Fog early, otherwise Mostly Sunny. H 83. WNW @ 5-10.

TONIGHT: Partly Cloudy. Isolated showers and T’storms. L 62. WNW @ 5.

WEDNESDAY: Partly Cloudy. Slight chance Showers and T’storms. H 82. S @ 5.

THURSDAY: Partly Cloudy. Isolated Showers and T’storms. H 85.

FRIDAY: Partly Sunny. H 87.

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Today: Patchy Fog Early, then Partly Cloudy.  H 82.  NW @ 5-10.

Tonight: Partial clearing.  Patchy Fog. L 58. Light and variable winds.

Tuesday: Sunny to Partly Cloudy.  H 84. WNW 5-10.

Wednesday: Partly to Mostly Cloudy. Scattered showers and t’storms. H 81.

Thursday: Partly Cloudy. Scattered showers and t’storms. H 85.

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HARRISON-SHELBY-POTTAWATTAMIE-MILLS-MONTGOMERY-FREMONT-PAGE–
438 PM CDT SUN JUN 22 2014

TONIGHT AND MONDAY…ISOLATED THUNDERSTORMS ARE POSSIBLE THIS INTO THIS EVENING. SEVERE STORMS ARE NOT EXPECTED…BUT BRIEF HEAVY RAIN IS POSSIBLE WITH ANY STORMS THAT DO DEVELOP. A WEAK COLD FRONT SLIDING SOUTHEAST THROUGH SOUTHEAST NEBRASKA AND SOUTHWEST IOWA WILL BE THE FOCUS FOR THUNDERSTORMS. THIS FRONT SHOULD MOVE SOUTH OF THE AREA BY MIDNIGHT…TAKING THUNDERSTORM CHANCES WITH IT.

ALTHOUGH SOME VERY MINOR FLOODING CAN BE EXPECTED ALONG THE MISSOURI RIVER FROM BLAIR TO OMAHA…THE HIGHER RIVER LEVELS WILL PERSIST SOUTH OF OMAHA. MINOR TO MODERATE FLOODING IS EXPECTED FROM PLATTSMOUTH DOWNSTREAM THROUGH RULO AT LEAST FOR THE NEXT SEVERAL DAYS. IN ADDITION…DUE TO RECENT HEAVY RAINS…ELEVATED LEVELS WILL CONTINUE THROUGH TONIGHT ON OTHER RIVER AND STREAMS ACROSS EASTERN NEBRASKA AND WESTERN IOWA.

MONDAY NIGHT THROUGH SUNDAY….

INTERMITTENT THUNDERSTORM CHANCES WILL CONTINUE OVER THE OUTLOOK AREA BEGINNING TUESDAY NIGHT THROUGH NEXT WEEKEND AS A SERIES OF DISTURBANCES AND WEAK FRONTS MOVE ACROSS THE PLAINS. ALTHOUGH AN OCCASIONAL STRONG OR SEVERE THUNDERSTORM WILL LIKELY OCCUR…THE ORGANIZED SEVERE POTENTIAL APPEARS SMALL AT THIS TIME.

SPOTTER INFORMATION STATEMENT…SPOTTER ACTIVATION WILL NOT BE NEEDED TONIGHT OR MONDAY.

Tonight Scattered showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 66. South southeast wind 7 to 10 mph becoming west southwest after midnight. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday A 30 percent chance of showers and thunderstorms, mainly before 10am. Partly sunny, with a high near 81. Northwest wind 7 to 10 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday Night Partly cloudy, with a low around 63. Northwest wind 6 to 10 mph.
Tuesday Mostly sunny, with a high near 83. Northwest wind around 7 mph.
Tuesday Night A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 64.
Wednesday A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 81.

333 PM CDT SUN JUN 22 2014

.THREAT FOR HEAVY RAIN DIMINISHING ACROSS THE AREA.

…FLASH FLOOD WATCH IS CANCELLED…

THE FLASH FLOOD WATCH FOR PORTIONS OF CENTRAL IOWA…NORTH CENTRAL IOWA…NORTHEAST IOWA…NORTHWEST IOWA…SOUTH CENTRAL IOWA…SOUTHWEST IOWA AND WEST CENTRAL IOWA HAS BEEN CANCELLED. THE THREAT FOR HEAVY RAINFALL HAS DIMINISHED ACROSS THE WATCH AREA THEREFORE THE WATCH HAS BEEN CANCELLED. A FEW SHOWERS AND THUNDERSTORMS ARE STILL POSSIBLE THROUGH MID EVENING THOUGH HEAVY RAINFALL WILL NOT OCCUR.

AREA COUNTIES: SAC-CRAWFORD-CARROLL-AUDUBON-GUTHRIE-DALLAS-CASS-ADAIR-MADISON-ADAMS-UNION-TAYLOR-RINGGOLD. 344 PM CDT SUN JUN 22 2014

THIS AFTERNOON AND TONIGHT: ISOLATED NON SEVERE THUNDERSTORMS ARE POSSIBLE THROUGH 8 PM.

MONDAY THROUGH SATURDAY: ADDITIONAL THUNDERSTORMS ARE POSSIBLE MAINLY FROM MID-WEEK THROUGH SATURDAY. THERE WILL BE AN INCREASING RISK FOR SEVERE STORMS THROUGH THAT PERIOD. THE BEST POTENTIAL FOR ACTIVITY WILL BE WEDNESDAY THROUGH EARLY THURSDAY AND AGAIN FRIDAY THROUGH EARLY SATURDAY.

SPOTTER INFORMATION STATEMENT…

SPOTTER ACTIVATION IS NOT EXPECTED THE REMAINDER OF TODAY.

Today –FLASH FLOOD WATCH in effect beginning at 1-p.m.; Mostly cloudy w/a 70% chance of showers & thunderstorms (mainly between 7am and 9am). High near 86. South wind 5 to 10 mph. New rainfall amounts between a quarter and half of an inch possible.
Tonight – Mostly cloudy w/a 70% chance of showers & thunderstorms (mainly before 2am Monday). Some of the storms could produce heavy rain. Low around 66. S-SE winds @ 5-10 becoming W/SW after midnight. New rainfall amounts between a half and three quarters of an inch possible.

Monday – Partly sunny w/a 30% chance of showers & thunderstorms, mainly before 10am. High near 81. NW wind 5to 10 mph. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Mon. Night – Partly cloudy, with a low around 63. NW wind 5 to 10 mph.

Tuesday – Mostly sunny, with a high near 83. NW wind around 5 mph.
Tue. Night – Mostly cloudy w/a 20% chance of showers & thunderstorms. Low around 64.

Wednesday – Partly Sunny w/a 30% chance of showers & thunderstorms. High near 81.

350 AM CDT SUN JUN 22 2014

…HEAVY RAIN AND FLASH FLOODING POSSIBLE ONCE AGAIN…

AMPLE MOISTURE WILL FEED THUNDERSTORMS ACROSS IOWA TODAY INTO TONIGHT. THIS MAY LEAD TO HEAVY RAINFALL AND THE POSSIBILITY OF FLASH FLOODING IN THE WATCH AREA. AREA COUNTIES AFFECTED: SAC-CRAWFORD-CARROLL-AUDUBON-GUTHRIE-DALLAS-CASS-ADAIR-MADISON-ADAMS-UNION-TAYLOR…FLASH FLOOD WATCH IN EFFECT FROM 1 PM CDT THIS AFTERNOON THROUGH MONDAY MORNING.

* HEAVY RAIN IS EXPECTED FROM SLOW MOVING THUNDERSTORMS THIS AFTERNOON INTO TONIGHT. OVER AN INCH OR TWO OF RAIN IS POSSIBLE IN A SHORT PERIOD OF TIME FROM THESE STORMS. GIVEN THE VERY MOIST SOIL CONDITIONS ACROSS THE WATCH AREA…FLASH FLOODING WILL BE A POSSIBILITY FROM THIS AFTERNOON INTO TONIGHT. THIS MAY ALSO RENEW RIVER FLOODING OR AGGRAVATE EXISTING FLOODING.

* DRIVING AT NIGHT DURING FLASH FLOOD SITUATION IS EXTREMELY DANGEROUS AS DRIVERS MAY UNDERESTIMATE THE DEPTH OF THE WATER OR MAY COME ACROSS AREAS PRONE TO WASHOUTS.

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.

OMAHA, Neb. (AP) — The National Weather Service has issued a flood warning for parts of Nebraska and Iowa along the Missouri River, and storms that dumped nearly 7 inches of rain on parts of Omaha haven’t helped. The National Weather Service says 6.83 inches of rain fell at the Millard Airport in Omaha from Friday night to about 7 a.m. Saturday — and more could be on the way.

The storms flooded low-lying Omaha streets and forced a College World Series game between Mississippi and Virginia to be postponed. The weather service says there is a 40 percent chance of showers and thunderstorms for the area on Sunday and a 50 percent chance on Monday.

The Flood Warning continues until 1-p.m. Sunday for the Missouri River….near Blair, NE., affecting Harrison County in Iowa…and near Omaha, affecting Pottawattamie County.

Strong storms that moved from Nebraska into western and southwest Iowa Friday night resulted in street flooding in Omaha, reports of dime-to quarter-sized hail, potentially damaging winds, and the postponement of a College World Series game. A Flash Flood Warning that was issued just after midnight for northwestern Mills and south central Pottawattamie County, was allowed to expire at 6:30-a.m. Officials say the heavy rain which prompted the warning has ended, and flooding in those areas is no longer expected to pose a threat.

Storm clouds form waves near the KJAN studios at around 9-p.m., Friday. (Ric Hanson photo)

Here in Atlantic, we received just over one-inch of rain at the KJAN studios on the north side of town. A little further into town, 1.2-inches was reported. The storms moved into Harrison and Shelby Counties a little at around 6-p.m., Friday, dumping quarter-sized hail and winds of up to 45 miles per hour near Little Sioux. Less than an hour later, those winds had increased to over 55-miles per hour.

At around 8-p.m., dime-sized hail was reported near Mondamin, in Harrison County. A few minutes later, dime-to-quarter size hail was reported by a spotter in Missouri Valley. At about that same time, spotters at the Persia Fire station recorded a 60-mile per hour gust of wind. And, at around 8:15-p.m., the Harlan Airport’s automated weather observation system recorded a wind gust of up to 58-miles per hour.

There were no immediate reports of damage associated with the wind and hail events. Today’s forecast calls for the possibility of additional thunderstorm activity later this afternoon and tonight. The storms will be capable of producing heavy rainfall, damaging winds and large hail. Additional periods of thunderstorms are possible Sunday through next Friday, severe weather and heavy rain are possible as well. Information with regard to the timing and location of these storms will unfold as the week progresses.