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Hazardous Weather Outlook for western/central Iowa – Wed., May 29th 2013

Weather

May 29th, 2013 by Ric Hanson

SCATTERED THUNDERSTORMS WILL AGAIN BE POSSIBLE OVER THE AREA  TODAY. FROM THIS EVENING THROUGH TONIGHT PERIODS OF MORE WIDESPREAD  AND STRONGER THUNDERSTORMS ARE EXPECTED. A FEW STORMS MAY BE  SEVERE WITH LARGE HAIL AND DAMAGING THUNDERSTORM WINDS THE MAIN  THREAT. AN ISOLATED TORNADO IS ALSO POSSIBLE.

THE THUNDERSTORMS WILL ALSO BE CAPABLE OF PRODUCING LOCALLY HEAVY RAIN AND FLOODING LATER THIS EVENING AND OVERNIGHT TONIGHT. THIS MAY LEAD TO FLASH
 FLOODING OR AREAL FLOODING…ESPECIALLY OVER AREAS THAT HAVE
 ALREADY SEEN FLOODING THIS WEEK.

Strong storms possible later today and tonight

News, Weather

May 29th, 2013 by Ric Hanson

The National Weather Service in Des Moines says a stronger storm system will arrive later this (Wednesday) afternoon and tonight across the region. This will lead to several periods of thunderstorms today and this evening and again overnight and Thursday. The combination of repeated rainfall may lead to additional flooding across the region especially over areas that have already seen heavy rainfall the past several days. In addition severe weather is a possibility as this stronger system moves northeast across Iowa tonight and Thursday. Monitor forecasts for the latest updates on this upcoming storm system.

(Podcast) Skyscan Forecast: May 29th 2013

Podcasts, Weather

May 29th, 2013 by Ric Hanson

Here’s the Freese-Notis (podcast) weather forecast for Atlantic and the KJAN listening area, and weather information for Atlantic….

KJAN listening area forecast: Wed., May 29th 2013

Weather

May 29th, 2013 by Ric Hanson

346 AM CDT WED MAY 29 2013/National Weather Service – Des Moines

EARLY THIS MORNING…MOSTLY CLOUDY WITH SCATTERED THUNDERSTORMS. SOUTH WIND 5 TO 10 MPH. CHANCE OF THUNDERSTORMS 30 PERCENT.

TODAY…MOSTLY CLOUDY. A CHANCE OF THUNDERSTORMS UNTIL LATE AFTERNOON…THEN THUNDERSTORMS LIKELY LATE IN THE AFTERNOON. BREEZY. HIGH IN THE UPPER 70S. SOUTH WIND 10 TO 20 MPH WITH GUSTS TO AROUND 30 MPH. CHANCE OF THUNDERSTORMS 60 PERCENT.

TONIGHT...THUNDERSTORMS LIKELY. BREEZY. SOME THUNDERSTORMS MAY PRODUCE HEAVY RAINFALL AFTER MIDNIGHT. LOW IN THE MID 60S. SOUTH WIND 15 TO 20 MPH WITH GUSTS TO AROUND 30 MPH. CHANCE OF THUNDERSTORMS 70 PERCENT.

THURSDAY…THUNDERSTORMS…BREEZY. SOME THUNDERSTORMS MAY PRODUCE HEAVY RAINFALL. HIGH IN THE MID 70S. SOUTH WIND 15 TO 20 MPH. CHANCE OF THUNDERSTORMS 80 PERCENT.

THURSDAY NIGHT…MOSTLY CLOUDY. THUNDERSTORMS LIKELY THROUGH MIDNIGHT…THEN A CHANCE OF THUNDERSTORMS AFTER MIDNIGHT. BREEZY. LOW IN THE LOWER 60S. SOUTH WIND 10 TO 20 MPH. CHANCE OF THUNDERSTORMS 60 PERCENT.

FRIDAY…MOSTLY CLOUDY WITH A 50 PERCENT CHANCE OF THUNDERSTORMS. HIGH IN THE MID 70S. SOUTHWEST WIND AROUND 10 MPH.

FRIDAY NIGHT…MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF THUNDERSTORMS. LOW IN THE UPPER 50S.

SATURDAY…PARTLY SUNNY WITH A SLIGHT CHANCE OF SHOWERS AND ISOLATED THUNDERSTORMS. SOME THUNDERSTORMS MAY PRODUCE HEAVY RAINFALL. HIGH IN THE LOWER 70S. CHANCE OF PRECIPITATION 20 PERCENT.

SATURDAY NIGHT THROUGH SUNDAY NIGHT…PARTLY CLOUDY. LOW IN THE LOWER 50S. HIGH IN THE UPPER 60S.

Flash Flood Warning: Ringgold, Adams, Taylor & Union Counties

Weather

May 28th, 2013 by Ric Hanson

548 PM CDT TUE MAY 28 2013

THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A FLASH FLOOD WARNING FOR…

NORTHWESTERN RINGGOLD COUNTY IN SOUTH CENTRAL IOWA…SOUTHEASTERN ADAMS COUNTY IN SOUTHWEST IOWA…SOUTHWESTERN UNION COUNTY IN SOUTH CENTRAL IOWA…TAYLOR COUNTY IN SOUTHWEST IOWA…UNTIL MIDNIGHT CDT WEDNESDAY

* AT 548 PM CDT…NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED SLOW MOVING THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE WARNED AREA. RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE…BEDFORD AND LENOX.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

ADDITIONAL RAINFALL AMOUNTS OF 1 TO 3 INCHES ARE POSSIBLE IN THE WARNED AREA. DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY. TURN AROUND…DONT DROWN.

Tornado Watch for southern tier counties of Iowa

Weather

May 28th, 2013 by Ric Hanson

TORNADO WATCH 233 IS IN EFFECT UNTIL 1000 PM CDT FOR THE FOLLOWING LOCATIONS

IOWA COUNTIES INCLUDED ARE APPANOOSE CLARKE DAVIS DECATUR DES MOINES FREMONT HENRY IOWA JEFFERSON JOHNSON KEOKUK LEE LOUISA LUCAS MAHASKA MARION MONROE MUSCATINE PAGE RINGGOLD TAYLOR UNION VAN BUREN WAPELLO WASHINGTON WAYNE .

Flash Flood Watch: Adams/Madison/Union/Taylor Ringgold Counties

Weather

May 28th, 2013 by Ric Hanson

233 PM CDT TUE MAY 28 2013

FLASH FLOOD WATCH IN EFFECT THROUGH WEDNESDAY MORNING...THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A

FLASH FLOOD WATCH FOR PORTIONS OF CENTRAL IOWA…SOUTH CENTRAL IOWA…SOUTHEAST IOWAAND SOUTHWEST IOWA… THROUGH WEDNESDAY MORNING.

* EXCESSIVE RAINFALL FROM THUNDERSTORMS WILL CAUSE FLASH FLOODING IN SOME AREAS

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.

Western IA/Eastern NE Hazardous Weather Outlook – May 28th 2013

Weather

May 28th, 2013 by Ric Hanson

AREA COUNTIES: MONONA-HARRISON-SHELBY-POTTAWATTAMIE-MILLS-MONTGOMERY-FREMONT- PAGE– 11:43 AM CDT TUE MAY 28 2013

THIS AFTERNOON AND TONIGHT… THUNDERSTORMS…SOME SEVERE, ARE AGAIN POSSIBLE LATE  THIS AFTERNOON AND OVERNIGHT. DAMAGING WINDS…LARGE HAIL…AND LOCALLY HEAVY RAIN WILL BE THE PRIMARY HAZARDS. A SHORT REPRIEVE FROM THE THUNDERSTORMS AND HEAVY RAIN WILL HOLD  AT LEAST INTO MID AFTERNOON.

THE STORMS FROM LAST NIGHT WORKED  OVER THE ENVIRONMENT…ESPECIALLY NORTH PARTS OF THE FORECAST AREA…WHERE THE OUTFLOW BOUNDARY WAS STILL VERY EVIDENT JUST ALONG AND SOUTH OF I80. THIS REMAINS THE AREA WHERE WE COULD SEE
 THUNDERSTORMS DEVELOP AS TEMPERATURES WARM INTO THE THE UPPER 70’S AND LOWER 80’S. ANOTHER BOUNDARY WAS LOCATED OVER SOUTHEAST NEBRASKA INTO SOUTHWEST IOWA.  THUNDERSTORMS WILL LIKELY FORM ALONG THIS BOUNDARY LATER THIS AFTERNOON.

OVERNIGHT…A LOW LEVEL JET SYSTEM WILL DEVELOP AND DEEPER MOISTURE RETURNS TO THE OUTLOOK AREA…THUS FAVORABLE CONDITIONS FOR THUNDERSTORMS TO DEVELOP. DAMAGING WINDS…HAIL…AND LOCALLY HEAVY RAIN WILL BE THE PRIMARY HAZARDS. CONDITIONS OF AREA STREAMS AND RIVERS THAT ARE ALREADY RUNNING
HIGH MAY WORSEN WITH ADDITIONAL HEAVY RUNOFF FROM HEAVY RAINFALL. 
 
WEDNESDAY THROUGH MONDAY…PERIODS OF THUNDERSTORMS ARE POSSIBLE WEDNESDAY THROUGH FRIDAY OF THIS WEEK. SEVERE THUNDERSTORMS AND LOCALLY HEAVY RAIN ARE POSSIBLE FROM ANY OF THE ACTIVITY.
 
SPOTTER INFORMATION STATEMENT… SPOTTER ACTIVATION MAY BE NEEDED LATE THIS AFTERNOON AND TONIGHT.

Flood warnings & watches cover the state & more rain is coming

News, Weather

May 28th, 2013 by Ric Hanson

Flood warnings or flash flood watches are now posted in 92 of Iowa’s 99 counties. Many roads are washed over and closed, including about a dozen state and U-S highways. National Weather Service meteorologist Roger Vachalek says more rain’s coming. “We’ll have to keep our eye on the possibility of more heavy rainfall, especially tonight and tomorrow and over the next couple of days,” Vachalek says. “The actual system that’s producing all of this rain is not going to move east until about Friday afternoon or evening.”

Some areas of Iowa have gotten eight inches of rain since Friday. The 24-hour rainfall total in Atlantic (ending today at 7-a.m.) was .2″ (two-tenths of an inch). Our 48-hour total at the KJAN studios was 1.15″. 

Massena reports a 24-hour rainfall total of .54″. Other, unofficial 24-hour rainfall amounts include: .”25 near Avoca; .3″ in Oakland; 1.04″ at Malvern; .84 at Hamburg; .35″ in Audubon. Weekend totals in 3/3″ in Clarinda, 2.95″ in Audubon, and 2.85″ in Red Oak.

(Radio Iowa/KJAN)

Patchy Dense Fog this morning

Weather

May 28th, 2013 by Ric Hanson

AREA COUNTIES: AUDUBON-GUTHRIE-CASS-ADAIR-ADAMS-
722 AM CDT TUE MAY 28 2013

…PATCHY DENSE FOG TUESDAY MORNING…

AREAS OF PATCHY DENSE FOG WILL PERSIST ACROSS THE AREA THROUGH
EARLY TUESDAY MORNING. VISIBILITIES MAY BE REDUCED TO A QUARTER OF
A MILE OR LESS AT TIMES. USE CAUTION WHILE DRIVING.