Officials with the National Weather Service say they are forecasting severe weather and flash flooding to become major threats to much of Iowa this upcoming Tuesday evening into Wednesday morning.
The latest forecast from the Storm Prediction Center shows the main threat for severe weather across the U.S. Tuesday will be across Iowa — mainly from Interstate 80 south. Heavy rainfall is expected with these storms. At this point, it shows a more than 45 percent probability of severe weather with the main threats of large hail, tornadoes and widespread damaging winds.
A combination of a much higher than usual amount of available moisture plus very strong wind shear will lead to a strong potential for severe thunderstorms. The storms are likely to move into western Iowa by around midnight, Tuesday. Tornadoes may occur during the overnight hours, so make sure you have a way to receive warning information near your bed before going to sleep.
Several inches of rainfall are also possible by and during the Wednesday morning commute. This could lead to flash flooding in flood-prone areas. Additionally, the Des Moines metro is expected to be impacted by this rainfall, so plan for extra travel time during the Wednesday morning commute.
5-a.m. Mon., June 2nd 2014 – from Freese-Notis….
Today: Mostly sunny & breezy. High near 85. West winds @ 15-25mph.
Tonight: Mostly clear. Low around 56. Light & variable winds.
Tuesday: Sunny to Partly Sunny w/a 50% chance of showers and thunderstorms after 4pm. High 85. N winds becoming SE @ 5-15mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tue. Night: Showers & thunderstorms, mainly after 7pm. Some storms could be severe, with large hail, damaging winds, and heavy rain. Low 65. SE @ 15-25. New rainfall amounts between 2 and 3 inches possible.
Wednesday: Mo. Cloudy w/a 40 percent chance of showers and thunderstorms, mainly before 1pm. High near 75. N @ 15-20. New rainfall amounts between a tenth
and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday: Mo. Sunny w/a 20% chance of showers and thunderstorms. High near 75.
Sunday’s High in Atlantic was 86. Our overnight low through 5-a.m. today: 63. Rainfall since Sunday evening (through 5-a.m. today) amounted to .8” (eight-tenths of an inch).
EARLY THIS MORNING…CLOUDY. SOUTH WIND 5 TO 10 MPH.
TODAY…MOSTLY SUNNY. HIGH IN THE MID 80S. WEST WIND 5 TO 15 MPH WITH GUSTS TO AROUND 25 MPH.
TONIGHT...MOSTLY CLEAR. LOW IN THE LOWER 60S. WEST WIND NEAR 10 MPH. GUSTS UP TO 20 MPH THROUGH MIDNIGHT.
TUESDAY…SUNNY IN THE MORNING…THEN PARTLY SUNNY WITH A SLIGHT CHANCE OF THUNDERSTORMS EARLY IN THE AFTERNOON. PARTLY SUNNY WITH A CHANCE OF THUNDERSTORMS LATE IN THE AFTERNOON. HIGH IN THE LOWER 80S. NORTHEAST WIND NEAR 5 MPH SHIFTING TO THE SOUTHEAST 5 TO 15 MPH IN THE AFTERNOON. CHANCE OF THUNDERSTORMS 50 PERCENT.
TUESDAY NIGHT…THUNDERSTORMS…BREEZY. SOME THUNDERSTORMS MAY BE SEVERE WITH DAMAGING WIND…LARGE HAIL AND HEAVY RAINFALL…THEN SOME THUNDERSTORMS MAY PRODUCE HEAVY RAINFALL AFTER MIDNIGHT. LOW IN THE MID 60S. SOUTHEAST WIND 10 TO 20 MPH WITH GUSTS TO AROUND 30 MPH. CHANCE OF THUNDERSTORMS NEAR 100 PERCENT.
WEDNESDAY…CLOUDY WITH A CHANCE OF THUNDERSTORMS IN THE MORNING…THEN PARTLY SUNNY WITH A SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGH IN THE MID 70S. NORTH WIND 10 TO 15 MPH WITH GUSTS TO AROUND 25 MPH. CHANCE OF THUNDERSTORMS 50 PERCENT.
THURSDAY…PARTLY CLOUDY. A 20 PERCENT CHANCE OF THUNDERSTORMS. HIGH IN THE MID 70S.
Severe Thunderstorm Watch #201 which had been in effect until 10-p.m. Sunday for Mills, Monona, Harrison, Pottawattamie and Shelby Counties, has been cancelled.
625 PM CDT SUN JUN 1 2014 IAZ045-046-057-058-070-071-020000- GUTHRIE IA-AUDUBON IA-CASS IA-CARROLL IA-ADAIR IA-GREENE IA- 625 PM CDT SUN JUN 1 2014 ...LINE OF STRONG STORMS MOVING THROUGH WEST CENTRAL IOWA... AT 624 PM CDT...DOPPLER RADAR WAS TRACKING A LINE OF STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM 9 MILES NORTHEAST OF GLIDDEN TO 8 MILES EAST OF GRISWOLD...AND MOVING EAST AT 40 MPH. WIND GUSTS UP TO 50 MPH WILL BE POSSIBLE WITH THESE STORMS. LOCATIONS IMPACTED INCLUDE... JEFFERSON...GREENFIELD...GUTHRIE CENTER...STUART...COON RAPIDS... GLIDDEN...PANORA...LAKE PANORAMA...ANITA...EXIRA...GRAND JUNCTION... ADAIR...FONTANELLE...SCRANTON...BAYARD...CASEY...ORIENT...CHURDAN... MASSENA AND MENLO. PLEASE SEEK SHELTER IN A STURDY STRUCTURE UNTIL THESE STORMS HAVE PASSED.
MILLS IA-SHELBY IA-HARRISON IA-MONTGOMERY IA-POTTAWATTAMIE IA- 611 PM CDT SUN JUN 1 2014 ...THE SEVERE THUNDERSTORM WARNING FOR MILLS...SHELBY...SOUTHEASTERN HARRISON...MONTGOMERY AND POTTAWATTAMIE COUNTIES WILL EXPIRE AT 615 PM CDT... THE LINE OF STORMS WHICH PROMPTED THE WARNING HAVE WEAKENED BELOW SEVERE LIMITS...AND NO LONGER POSE AN IMMEDIATE THREAT TO LIFE OR PROPERTY. THEREFORE THE WARNING WILL BE ALLOWED TO EXPIRE. HOWEVER GUSTY WINDS AND HEAVY RAIN ARE STILL POSSIBLE WITH THESE THUNDERSTORMS. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT SUNDAY AFTERNOON FOR SOUTHWEST IOWA AND EASTERN NEBRASKA.
6:20 – Strong wind (est. 50mph), heavy rain and pea-sized hail in Atlantic (@ KJAN); Tree down near 4th and Birch Streets.
5:30-p.m. Thunderstorm wind damage 6 miles east of Council Bluffs: Tree down near 270th and Highway 6 blocking 270th Street.
5:15-p.m. Tstrm wind damage in Council Bluffs. Trees and power lines down.
549 PM CDT SUN JUN 1 2014 IAZ044-045-057-070-012345- AUDUBON IA-CASS IA-CARROLL IA-CRAWFORD IA- 549 PM CDT SUN JUN 1 2014 ...STRONG THUNDERSTORMS MOVING THROUGH WESTERN IOWA... AT 548 PM CDT...DOPPLER RADAR WAS TRACKING A LINE OF STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM 4 MILES NORTHEAST OF DEFIANCE TO 4 MILES WEST OF MACEDONIA...AND MOVING EAST AT 35 MPH. WIND GUSTS UP TO 50 MPH AND RAINFALL AMOUNTS OF OVER ONE INCH WILL BE POSSIBLE WITH THESE STORMS. LOCATIONS IMPACTED INCLUDE... ATLANTIC...AUDUBON...MANNING...GRISWOLD...ANITA...EXIRA...MANILLA... ELK HORN...DOW CITY...LEWIS...TEMPLETON...KIMBALLTON...DEDHAM... CUMBERLAND...BRAYTON...MARNE...WIOTA...GRAY...BUCK GROVE AND ASPINWALL. THESE STORMS MAY INTENSIFY...SO BE CERTAIN TO MONITOR LOCAL RADIO AND TV STATIONS...AS WELL AS LOCAL CABLE TV OUTLETS...FOR ADDITIONAL
WESLEY, Iowa (AP) – Heavy rain fell on parts of north-central Iowa Sunday and several tornadoes were reported as storms moved across the mostly rural part of the state. The National Weather Service says tornadoes were reported in Kossuth, Worth and Cerro Gordo counties Sunday afternoon, but there wasn’t any damage reported immediately from those tornadoes. The storms dumped more than 4 inches of rain on Kossuth County over a three-hour period Sunday.
That heavy rain prompted the weather service to issue flash flood warnings for Kossuth County and several other areas of northern Iowa. Forecasters warn that western and central Iowa may see severe thunderstorms Sunday evening and overnight into Monday.
SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE OMAHA/VALLEY NEBRASKA 558 PM CDT SUN JUN 1 2014 IAC085-129-137-155-165-012315- /O.CON.KOAX.SV.W.0073.000000T0000Z-140601T2315Z/ MILLS IA-SHELBY IA-HARRISON IA-MONTGOMERY IA-POTTAWATTAMIE IA- 558 PM CDT SUN JUN 1 2014 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 615 PM CDT FOR MILLS...SHELBY...SOUTHEASTERN HARRISON...MONTGOMERY AND POTTAWATTAMIE COUNTIES... AT 558 PM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE EXTENDING FROM 7 MILES SOUTHEAST OF MANNING TO NEAR MALVERN...MOVING EAST AT 40 MPH. HAZARD...60 MPH WIND GUSTS. SOURCE...RADAR INDICATED. IMPACT...EXPECT DAMAGE TO ROOFS...SIDING AND TREES. LOCATIONS IMPACTED INCLUDE... EASTERN COUNCIL BLUFFS...RED OAK...GLENWOOD...HARLAN...OAKLAND... AVOCA...MALVERN...TREYNOR...UNDERWOOD...CARSON...WALNUT...STANTON... ELK HORN...SHELBY...MINDEN...PACIFIC JUNCTION...EMERSON...EARLING... ELLIOTT AND IRWIN.