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Flash Flood Watch for Cass & area Counties 1-am Wed. thru Wed. morning

News, Weather

August 26th, 2014 by Ric Hanson

355 PM CDT TUE AUG 26 2014

…HEAVY RAINFALL POTENTIAL LATE TONIGHT INTO WEDNESDAY MORNING…

.THUNDERSTORMS ARE EXPECTED TO DEVELOP AND MOVE ACROSS THE AREA LATE TONIGHT…WITH HEAVY RAINFALL POSSIBLE. MUCH OF THE AREA RECEIVED 1 TO 2 INCHES OF RAIN OR MORE PREVIOUSLY…ALLOWING FOR SOME SATURATION OF THE GROUND. Counties: CRAWFORD-CARROLL-AUDUBON-CASS

355 PM CDT TUE AUG 26 2014

FLASH FLOOD WATCH IN EFFECT FROM 1 AM CDT WEDNESDAY THROUGH WEDNESDAY MORNING. THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A FLASH FLOOD WATCH FOR PORTIONS OF SOUTHWEST IOWA AND WEST CENTRAL IOWA.

RAINFALL OF 1 TO 2 INCHES WITH LOCALIZED AREAS OF UP TO 3 INCHES IS EXPECTED LATE TONIGHT. THIS COULD LEAD TO THE POTENTIAL FOR FLASH FLOODING AS THE RAINFALL WILL FALL OVER AN AREA THAT RECENTLY RECEIVED HEAVY RAINFALL RESULTING IN NEARLY SATURATED GROUND CONDITIONS.

FLASH FLOODING IS PARTICULARLY DANGEROUS AT NIGHT. THE DEPTH OF WATER OVER ROADS CAN BE VERY DECEPTIVE. DO NOT DRIVE THROUGH WATER COVERING THE ROADWAY.

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.

24-hour Rainfall totals (as of 7-a.m. Tue., 8/26)

Weather

August 26th, 2014 by Ric Hanson

(Updated 9-a.m.)

Harlan, 4.2″; Underwood, 1.88″; Council Bluffs, 2.35″; Glenwood, 1.3″; Atlantic ( @ KJAN ), .96″; Massena, .36; 1.5 miles S. of Avoca, 1.5″; 3 miles w. of Oakland, 1.5″; Audubon, 2.25″; Irwin, .75″; Shenandoah, .96; Clarinda, .55″; Blanchard (Page County), 2.02″

NWS forecast for the KJAN listening area – 8/26/14

Weather

August 26th, 2014 by Ric Hanson

346 AM CDT TUE AUG 26 2014

EARLY THIS MORNING…WIDESPREAD THUNDERSTORMS. NORTHEAST WIND 5 TO 15 MPH. CHANCE OF THUNDERSTORMS 90 PERCENT.

TODAY…MOSTLY CLOUDY. NUMEROUS THUNDERSTORMS THROUGH MID MORNING… THEN SCATTERED THUNDERSTORMS IN THE LATE MORNING AND EARLY AFTERNOON. ISOLATED THUNDERSTORMS LATE IN THE AFTERNOON. HIGH IN THE UPPER 70S. NORTHEAST WIND 5 TO 10 MPH. CHANCE OF THUNDERSTORMS 70 PERCENT.

TONIGHT...MOSTLY CLOUDY. A CHANCE OF THUNDERSTORMS THROUGH MIDNIGHT…THEN THUNDERSTORMS LIKELY AFTER MIDNIGHT. THUNDERSTORMS EARLY IN THE MORNING. SOME THUNDERSTORMS MAY PRODUCE HEAVY RAINFALL AFTER MIDNIGHT. LOW IN THE MID 60S. EAST WIND 5 TO 10 MPH. CHANCE OF THUNDERSTORMS 80 PERCENT.

WEDNESDAY…THUNDERSTORMS LIKELY UNTIL LATE AFTERNOON…THEN A CHANCE OF THUNDERSTORMS LATE IN THE AFTERNOON. SOME THUNDERSTORMS MAY PRODUCE HEAVY RAINFALL THROUGH MID MORNING. HIGH AROUND 80. EAST WIND 5 TO 10 MPH. CHANCE OF THUNDERSTORMS 70 PERCENT.

WEDNESDAY NIGHT…THUNDERSTORMS LIKELY. LOW IN THE UPPER 60S. SOUTHEAST WIND 5 TO 10 MPH. CHANCE OF THUNDERSTORMS 70 PERCENT.

THURSDAY…MOSTLY CLOUDY WITH A 50 PERCENT CHANCE OF THUNDERSTORMS. HIGH IN THE LOWER 80S. SOUTH WIND 5 TO 10 MPH.

NWS forecast for Cass & area Counties in IA: 8/25/14

Weather

August 25th, 2014 by Ric Hanson

EARLY THIS MORNING…MOSTLY CLOUDY WITH A 30 PERCENT CHANCE OF THUNDERSTORMS. EAST WIND NEAR 5 MPH.

TODAY…MOSTLY SUNNY. ISOLATED THUNDERSTORMS LATE IN THE AFTERNOON. HIGH IN THE UPPER 80S. SOUTH WIND NEAR 5 MPH SHIFTING TO THE NORTHWEST IN THE AFTERNOON. CHANCE OF THUNDERSTORMS 20 PERCENT.

TONIGHT…PARTLY CLOUDY IN THE EVENING THEN BECOMING MOSTLY CLOUDY. A CHANCE OF THUNDERSTORMS UNTIL EARLY MORNING…THEN THUNDERSTORMS LIKELY EARLY IN THE MORNING. SOME THUNDERSTORMS MAY PRODUCE HEAVY RAINFALL AFTER MIDNIGHT. LOW IN THE MID 60S. NORTHEAST WIND NEAR 10 MPH. CHANCE OF THUNDERSTORMS 60 PERCENT.

TUESDAY…THUNDERSTORMS LIKELY UNTIL LATE AFTERNOON…THEN A CHANCE OF THUNDERSTORMS LATE IN THE AFTERNOON. SOME THUNDERSTORMS MAY PRODUCE HEAVY RAINFALL THROUGH MID MORNING. HIGH IN THE LOWER 80S. NORTHEAST WIND 5 TO 10 MPH. CHANCE OF THUNDERSTORMS 70 PERCENT.

TUESDAY NIGHT…THUNDERSTORMS LIKELY. SOME THUNDERSTORMS MAY PRODUCE HEAVY RAINFALL. LOW IN THE MID 60S. EAST WIND 5 TO 10 MPH. CHANCE OF THUNDERSTORMS 70 PERCENT.

WEDNESDAY…THUNDERSTORMS LIKELY. HIGH IN THE UPPER 70S. EAST WIND 5 TO 10 MPH. CHANCE OF THUNDERSTORMS 70 PERCENT.

WEDNESDAY NIGHT AND THURSDAY…THUNDERSTORMS LIKELY. LOW IN THE MID 60S. HIGH AROUND 80. CHANCE OF THUNDERSTORMS 70 PERCENT.

Farmers’ Almanac predicts another nasty winter

Ag/Outdoor, News, Weather

August 24th, 2014 by Ric Hanson

LEWISTON, Maine (AP) — The folks at the Farmers’ Almanac are feeling a bit smug after correctly predicting the past nasty winter, which featured relentless snowstorms and a polar vortex. Editors of the 198-year-old publication in Maine are projecting more of the same in a few months. The latest edition officially goes on sale this week. It forecasts colder-than-normal and wetter-than-usual weather for three-quarters of the country east of the Rocky Mountains.

The publication, not to be confused with the New Hampshire-based Old Farmer’s Almanac, bases its long-range forecasts on a secret formula based on sunspots, planetary positions and lunar cycles. Modern science doesn’t put much stock in the formula, but modern meteorologists sometimes struggle with long-range forecasts. The national Climate Prediction Center projected milder weather last winter.

NWS Forecast for Atlantic & the KJAN listening area: Sun., 8/24/14

Weather

August 24th, 2014 by Ric Hanson

Today: Isolated showers and thunderstorms before 8am, then isolated showers and thunderstorms after 5pm. Otherwise, mostly sunny, with a high near 91. South wind 10 to 20 mph. Chance of precipitation is 20%.
Tonight: Partly Cloudy with a 30 percent chance of showers and thunderstorms, mainly between 10pm and midnight. Low around 68. South wind 5 to 10 mph becoming light and variable after midnight. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Monday: Mostly sunny, with a 30 percent chance of showers and thunderstorms, mainly after 4pm. High near 87. East southeast wind 5 to 10 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday Night: Mostly cloudy, with showers and thunderstorms likely, mainly after 7pm. Low around 69. East wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Tuesday: Partly sunny with a 50 percent chance of showers and thunderstorms. High near 85. East wind 5 to 10 mph. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday Night: Showers and thunderstorms likely. Low around 68. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.

Wednesday: Showers and thunderstorms likely. High near 80. Chance of precipitation is 60%.

Flash Flood Warning; Adair/Adams/Madison/Union Counties

Weather

August 23rd, 2014 by Ric Hanson

532 AM CDT SAT AUG 23 2014

THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A

* FLASH FLOOD WARNING FOR…
SOUTHWESTERN WARREN COUNTY IN SOUTH CENTRAL IOWA…
SOUTHERN MADISON COUNTY IN SOUTH CENTRAL IOWA…
SOUTHERN ADAIR COUNTY IN SOUTHWEST IOWA…
NORTHERN CLARKE COUNTY IN SOUTH CENTRAL IOWA…
NORTHERN UNION COUNTY IN SOUTH CENTRAL IOWA…
NORTHEASTERN ADAMS COUNTY IN SOUTHWEST IOWA…

* UNTIL 1130 AM CDT

* AT 531 AM CDT…DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING HEAVY RAIN ACROSS THE WARNED AREA. UP TO THREE INCHES OF RAIN HAVE ALREADY FALLEN. FLASH FLOODING IS EXPECTED TO BEGIN SHORTLY.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE… GREEN VALLEY LAKE…MURRAY…NEW VIRGINIA…TRURO…ORIENT…LORIMOR…EAST PERU…MACKSBURG…THAYER…MURRAY ROADSIDE REST AREA AND GREEN VALLEY LAKE STATE PARK.

ADDITIONAL RAINFALL AMOUNTS OF AROUND AN INCH ARE POSSIBLE IN THE
WARNED AREA.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

MOVE TO HIGHER GROUND NOW. ACT QUICKLY TO PROTECT YOUR LIFE. TURN AROUND…DONT DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES. PLEASE REPORT FLOODING TO YOUR LOCAL LAW ENFORCEMENT AGENCY WHEN YOU CAN DO SO SAFELY.

NWS forecast for Atlantic & the KJAN listening area: Sat., 8/23/14

Podcasts, Weather

August 23rd, 2014 by Ric Hanson

(Updated 5:26-a.m., NWS/Des Moines)

  • Today Scattered showers and thunderstorms, mainly before 7am. Patchy fog before 8am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 91. Breezy, with a north wind 7 to 16 mph becoming south southeast in the afternoon. Winds could gust as high as 23 mph. Chance of precipitation is 50%. New rainfall amounts between a quarter and half of an inch possible.
  • Tonight Mostly clear, with a low around 70. South wind 8 to 11 mph.
  • Sunday Mostly sunny, with a high near 93. South wind 8 to 13 mph, with gusts as high as 21 mph.
  • Sunday Night A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 66. South wind 5 to 7 mph becoming light and variable after midnight. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
  • Monday A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88. East northeast wind 5 to 7 mph.
  • Monday Night A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 68. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
  • Tuesday A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 86.

 

Play

Svr. T-Storm warning (Update)

Weather

August 23rd, 2014 by Ric Hanson

357 AM CDT SAT AUG 23 2014

…A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 415 AM CDT FOR SOUTHWESTERN DALLAS…NORTHWESTERN MADISON…EASTERN GUTHRIE AND NORTHEASTERN ADAIR COUNTIES…

AT 357 AM CDT…A SEVERE THUNDERSTORM WAS LOCATED 4 MILES NORTH OF STUART…OR 12 MILES SOUTHEAST OF GUTHRIE CENTER…MOVING NORTHEAST AT 45 MPH.

HAZARD…60 MPH WIND GUSTS.

SOURCE…RADAR INDICATED.

IMPACT…EXPECT DAMAGE TO ROOFS…SIDING AND TREES.

Severe T-storm warning: Adair/Guthrie/Dallas/Madison Counties

Weather

August 23rd, 2014 by Ric Hanson

339 AM CDT SAT AUG 23 2014

THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A SEVERE THUNDERSTORM WARNING FOR…SOUTHWESTERN DALLAS COUNTY IN CENTRAL IOWA…NORTHWESTERN MADISON COUNTY IN SOUTH CENTRAL IOWA…EASTERN GUTHRIE COUNTY IN WEST CENTRAL IOWA…NORTHEASTERN ADAIR COUNTY IN SOUTHWEST IOWA…UNTIL 415 AM CDT

* AT 338 AM CDT…A SEVERE THUNDERSTORM WAS LOCATED 6 MILES NORTH OF GREENFIELD…MOVING NORTHEAST AT 40 MPH.

HAZARD…60 MPH WIND GUSTS.

SOURCE…RADAR INDICATED.

IMPACT…EXPECT DAMAGE TO ROOFS…SIDING AND TREES.

* LOCATIONS IMPACTED INCLUDE…ADEL…STUART…DALLAS CENTER…EARLHAM…LAKE PANORAMA…PANORA…DE SOTO…REDFIELD…DEXTER…CASEY…DIAMONDHEAD LAKE…MINBURN…MENLO…YALE…LINDEN AND LAKIN SLOUGH GAME MANAGEMENT AREA.

THIS INCLUDES INTERSTATE 80 BETWEEN MILE MARKERS 81 AND 111.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A BUILDING.