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Storm Assessment: EF-2 Tornado hit Oakland

News, Weather

June 5th, 2014 by Ric Hanson

The National Weather Service in Valley, NE., says damage in Oakland during Tuesday evening’s storms was caused by an EF-2 Tornado. On Wednesday, a storm survey team looked at damage around Oakland. The results showed a large area of intense hail and wind damage across eastern Pottawattamie County.

Wind damage exceeded 100-miles per hour in some areas, with structures blown down, a roof torn off of a home, and sheds and barns flattened. A four-mile stretch of high tension power poles were bent and numerous trees were blown down. In addition, there were swaths of very large hail damage to homes and businesses. Within the second swath of wind and hail damage, a short-track tornado was detected.

The tornado’s start time has yet to be determined, but it formed slightly over 8-miles west-northwest of Oakland and traveled nearly six-miles to the west of Oakland before it diminished. At the onset, the E-F 2 twister with winds estimated at 115-miles per hour, downed numerous trees. It proceeded east-southeast and hit a farm house and destroyed a garage, a barn, and severely damaged several other sheds.

The tornado’s path was 2.9-miles long and 575 yards wide. An EF-2 tornado is considered “Strong.” It can pack winds from 111-to 135-miles per hour.

Significant Weather Advisory: SW Harrison/NW Pottawattamie Counties

Weather

June 5th, 2014 by Ric Hanson

536 PM CDT THU JUN 5 2014

…SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN HARRISON…
NORTHWESTERN POTTAWATTAMIE…CENTRAL WASHINGTON AND NORTHERN DOUGLAS
COUNTIES UNTIL 615 PM CDT…

AT 536 PM CDT…DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 9
MILES NORTHEAST OF NICKERSON…OR 28 MILES NORTHWEST OF OMAHA…
MOVING SOUTHEAST AT 20 MPH.

NICKEL SIZE HAIL AND WINDS IN EXCESS OF 40 MPH WILL BE POSSIBLE WITH
THIS STORM.

LOCATIONS IMPACTED INCLUDE…
BLAIR…FORT CALHOUN…KENNARD…DESOTO BEND NATIONAL WILDLIFE REFUGE
AND WILSON ISLAND STATE PARK.

Significant Weather Advisory: NE Harrison SW

Weather

June 5th, 2014 by Ric Hanson

526 PM CDT THU JUN 5 2014

…SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN SHELBY AND
NORTHEASTERN HARRISON COUNTIES UNTIL 615 PM CDT…

AT 525 PM CDT…DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 7
MILES NORTH OF LOGAN…OR 29 MILES SOUTHWEST OF DENISON…MOVING
SOUTHEAST AT 20 MPH.

NICKEL SIZE HAIL AND WINDS IN EXCESS OF 40 MPH WILL BE POSSIBLE WITH
THIS STORM.

LOCATIONS IMPACTED INCLUDE…
WOODBINE…PANAMA…PORTSMOUTH…WESTPHALIA…TENNANT…SCHABEN PARK
AND WILLOW LAKE RECREATION AREA.

Severe Thunderstorm Warning: Harrison & Monona Counties

Weather

June 5th, 2014 by Ric Hanson

459 PM CDT THU JUN 5 2014

THE NATIONAL WEATHER SERVICE IN OMAHA HAS ISSUED A SEVERE THUNDERSTORM WARNING FOR…NORTH CENTRAL HARRISON COUNTY IN SOUTHWEST IOWA… SOUTHEASTERN MONONA COUNTY IN WEST CENTRAL IOWA… UNTIL 545 PM CDT

* AT 458 PM CDT…A SEVERE THUNDERSTORM WAS LOCATED NEAR PISGAH…OR

32 MILES WEST OF DENISON…MOVING SOUTHEAST AT 15 MPH.

HAZARD…QUARTER SIZE HAIL.

SOURCE…RADAR INDICATED.

IMPACT…DAMAGE TO VEHICLES IS EXPECTED.

* LOCATIONS IMPACTED INCLUDE…

PISGAH…MOORHEAD…WOODBINE…SCHABEN PARK…PREPARATION CANYON STATE PARK…LITTLE SIOUX SCOUT RANCH AND WILLOW LAKE RECREATION AREA.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A BUILDING.  TO REPORT SEVERE WEATHER CONTACT YOUR NEAREST LAW ENFORCEMENT AGENCY.

THIS THUNDERSTORM IS CAPABLE OF PRODUCING ALL TYPES OF SEVERE WEATHER…INCLUDING EXTREMELY LARGE HAIL…DESTRUCTIVE STRAIGHT LINE WINDS…AND TORNADOES. MOVE QUICKLY TO A SAFE SHELTER…SUCH AS AN INTERIOR ROOM…A BATHROOM OR CLOSET OR BASEMENT.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1100 PM CDT THURSDAY AFTERNOON FOR SOUTHWEST IOWA AND NORTHEAST NEBRASKA.

Tornado Watch until 11-p.m. Thursday

News, Weather

June 5th, 2014 by Ric Hanson

455 PM CDT THU JUN 5 2014
TORNADO WATCH 234 IS IN EFFECT UNTIL 1100 PM CDT FOR THE FOLLOWING LOCATIONSIOWA COUNTIES INCLUDED AREAUDUBON CARROLL CASS  CRAWFORD GUTHRIE HARRISON POTTAWATTAMIE SAC SHELBY & WOODBURY.

* PRIMARY THREATS INCLUDE…

A COUPLE TORNADOES POSSIBLE ISOLATED VERY LARGE HAIL EVENTS TO 2 INCHES IN DIAMETER POSSIBLE ISOLATED DAMAGING WIND GUSTS TO 70 MPH POSSIBLE. THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 60 STATUTE MILES EAST AND WEST OF A LINE FROM 20 MILES NORTHWEST OF REDWOOD FALLS MINNESOTA TO 20 MILES SOUTHEAST OF OMAHA NEBRASKA.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

REMEMBER…A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR TORNADOES AND SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE WARNINGS.

 

Skyscan Weather Forecast: Thu., June 5th 2014

Weather

June 5th, 2014 by Ric Hanson

Today: Partly sunny w/Isolated showers and thunderstorms after 2-pm. High near 79. Southeast wind 5-10mph. Chance of precipitation is 20%.
Tonight: Partly Cloudy w/a 20% chance of showers and thunderstorms before 9-pm. Low around 59. South southeast wind 5 to 10mph becoming calm after midnight.

Friday: Partly Sunny. High near 83. East southeast wind 5 to 10 mph.
Fri. Night: Mostly cloudy w/a 30% chance of showers and thunderstorms after 1-am. Low around 64. East southeast wind 5 to 10 mph. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Saturday: Mostly Cloudy w/Showers and thunderstorms likely. High near 76. East wind 5 to 10 mph. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.
Sat. Night: Mostly cloudy w/a 30% chance of showers and thunderstorms. Low around 58. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Sunday: Partly cloudy w/isolated showers or thunderstorms, High near 73.

********

Wednesday’s High in Atlantic was 80. Our low overnight 61. We picked up .02” of an inch of rain after 7-a.m. yesterday, for a total of 2.49” (including the 24-hour rainfall preceding 7-a.m. Wed.)

Storms dump heavy rain/hail and destructive winds

News, Weather

June 4th, 2014 by Ric Hanson

Waves of storms moving through western Iowa Tuesday evening into early this (Wednesday) morning, brought destructive winds, hail and heavy rain. The National Weather Service out of Valley, NE. will send a survey team to the Oakland area this morning to assess damage following a possible tornado that may have been responsible for knocking roofs off grain elevators.

The first wave of storms rolled into western Iowa from Nebraska Tuesday afternoon and evening, knocking out power for several hours to more than 5,100 customers of OPPD in Omaha. Mid American Energy reports 2,677 customers were still without power in Council Bluffs this morning.

Damage reports from around the area include downed trees in Council Bluffs, where there were numerous incidents of streets flooding, and water over the hoods of vehicles. In Corning, numerous homes and outbuildings were damaged by falling tree limbs, which also took out power lines not only in Corning, but elsewhere in Adams County. Large hail shattered some windshields in Corning, and damaged a fire department vehicle.

Montgomery County officials say high winds caused extensive damage in the Red Oak area, where several trees fell on vehicles and there were scattered power outages, but no immediate reports of structural damage. Roads across southwest Iowa were temporarily flooded and/or blocked by flood debris last night. In Cass County, there was debris reported between 550th and Victoria Roads, after flood waters crossed in that area.

Thunderstorm winds estimated at 86 miles per hour whipped through an area northeast of Massena Tuesday evening, while ping-pong ball to egg-sized hail pounding the same area. There were also reports of 2-to 3-foot diameter tree limbs crashing to the ground in Massena as the first wave of storms blew through. Street flooding was reported in Griswold for a time Tuesday evening, with water hubcap deep at times.

For a chronological listing of storm reports and damage, go to the Weather page at KJAN.com and scroll through the warnings and other information to find our Storm report.

24-hour rainfall reports 6/4/2014

Weather

June 4th, 2014 by Ric Hanson

Atlantic ( at KJAN – officials NWS reporting site) – 2.47″.

Lewis – 5.9″  (Reported by KJAN’s Becky Mosier)

rural Henderson – 4.7″ (reported by KJAN’s Lou Gerbino)

1.5 miles S. of Avoca – 4.1″  (1 mile w. of Avoca 2.87″) – media reports

Bedford – 4.02″ (weather spotter report)

Massena- 3.92″ – Spotter report

Red Oak – 3.75″ (media report)

Hamburg – 3.4″ (media report)

Clarinda – 3.16″ (media report)

Wiota – 2.8″ (media report)

Shenandoah – 2.79″ (media report)

Flood Warning for the Nodaway River at Clarinda

Weather

June 4th, 2014 by Ric Hanson

530 AM CDT WED JUN 4 2014

…THE FLOOD WARNING CONTINUES FOR THE FOLLOWING RIVER…

NODAWAY RIVER AT CLARINDA AFFECTING PAGE COUNTY.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

DO NOT DRIVE CARS THROUGH AREAS WHERE WATER COVERS THE ROAD. THE
WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR VEHICLE TO PASS SAFELY.
IAC145-050130-

THE FLOOD WARNING CONTINUES FOR
THE NODAWAY RIVER AT CLARINDA.
* AT 5:15 AM WEDNESDAY THE STAGE WAS 24.6 FEET…OR 1.6 FEET ABOVE
FLOOD STAGE.
* FLOOD STAGE IS 23.0 FEET.
* MINOR FLOODING IS OCCURRING AND MINOR FLOODING IS FORECAST.
* FORECAST…THE RIVER WILL CONTINUE RISING TO NEAR 24.8 FEET THIS
MORNING. THE RIVER WILL FALL BELOW FLOOD STAGE LATE THIS AFTERNOON.
* IMPACT…AT 24.0 FEET…ADDITIONAL LOWLANDS, SOME FARMLANDS, AND
COUNTY ROADS FLOOD.

FLOODING WAS ALSO OCCURRING ON THE EAST NODAWAY RIVER TO THE EAST
AND SOUTH OF CLARINDA.

(Podcast) Skyscan Forecast: Wed., 6/4/2014

Podcasts, Weather

June 4th, 2014 by Ric Hanson

The Freese-Notis weather forecast for the KJAN listening area and weather information for Atlantic.

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