DENSE FOG LOOKS TO CONTINUE TO SPREAD OVER CENTRAL AND SOUTHERN IOWA THROUGH THE MORNING HOURS BEFORE LIFTING WITH THE SUNRISE. VISIBILITY TO ONE QUARTER MILE OR LESS IS LIKELY.
AREA COUNTIES: CARROLL-AUDUBON-GUTHRIE-DALLAS-CASS-ADAIR-MADISON-ADAMS-UNION-TAYLOR-RINGGOLD…
...DENSE FOG ADVISORY IN EFFECT UNTIL 8 AM CDT THIS MORNING…
Dense Fog Advisory for counties in gray.
THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A DENSE FOG ADVISORY…WHICH IS IN EFFECT UNTIL 8 AM CDT THIS MORNING.
* VISIBILITY…ONE QUARTER MILE OR LESS…ESPECIALLY ALONG HIGHWAY 30 FROM CARROLL TO AMES…INTERSTATE 35 FROM THE MISSOURI BORDER TO AROUND OSCEOLA…AND HIGHWAY 141 FROM COON RAPIDS TO GRIMES.
* IMPACTS…DENSE FOG IS EXTREMELY DANGEROUS WHILE DRIVING AT NIGHT…PARTICULARLY IN LOW LYING AREAS SUCH AS RIVER BOTTOMS OR VALLEYS. DRIVERS SHOULD UTILIZED LOW BEAM HEADLIGHTS AND ALLOW PLENTY OF ROOM BETWEEN THE VEHICLE AHEAD OF YOU.
PRECAUTIONARY/PREPAREDNESS ACTIONS…
A DENSE FOG ADVISORY MEANS VISIBILITIES WILL FREQUENTLY BE REDUCED TO LESS THAN ONE QUARTER MILE. IF DRIVING…SLOW DOWN… USE YOUR HEADLIGHTS…AND LEAVE PLENTY OF DISTANCE AHEAD OF YOU.
AUDUBON-GUTHRIE-CASS-ADAIR-MADISON-WARREN-ADAMS-UNION-CLARKE-LUCAS-TAYLOR-RINGGOLD-DECATUR-WAYNE COUNTIES…
934 AM CDT TUE AUG 2 2016
…FLASH FLOOD WATCH IS CANCELLED…
THE FLASH FLOOD WATCH FOR PORTIONS OF SOUTH CENTRAL IOWA…
SOUTHWEST IOWA AND WEST CENTRAL IOWA HAS BEEN CANCELLED. THE HEAVY RAIN THREAT HAS ENDED WITH A FEW LINGERING LIGHT SHOWERS OR STORMS POSSIBLE THIS MORNING.
Today: Mostly cloudy this morning w/scattered showers & thunderstorms; Becoming Partly Cloudy. High 88. Heat index values as high as 101. S @ 10-15.
Tonight: P/Cldy w/a chance of showers & thunderstorms thru midnight. Low 73.
Tomorrow: P/Cldy, warm & humid. High 91. Heat index values as high as 102. NE-SW @ 10-20.
Thursday: P/Cldy w/a slight chance of afternoon showers & thunderstorms. High 94.
Friday: A 30% chance of showers & thunderstorms in the morning; Becoming P/Cldy. High 86.
Monday’s High in Atlantic was 84. Our Low this morning was 64. We received .73“ of rain over the past 24-hours ending today at 7-a.m. Last year on this date, our High in Atlantic was 91 and the low was 62. The Record High in Atlantic on this date was 103 in 1930. The Record Low was 42 in 1907.
337 AM CDT TUE AUG 2 2016
FLASH FLOOD WATCH IN EFFECT UNTIL NOON CDT TODAY…
EARLY THIS MORNING…THUNDERSTORMS LIKELY. SOME THUNDERSTORMS MAY PRODUCE HEAVY RAINFALL. SOUTHEAST WIND NEAR 5 MPH. CHANCE OF THUNDERSTORMS 70 PERCENT.
TODAY…MOSTLY CLOUDY WITH THUNDERSTORMS THROUGH MID MORNING…THEN PARTLY SUNNY WITH SCATTERED THUNDERSTORMS IN THE LATE MORNING AND AFTERNOON. SOME THUNDERSTORMS MAY PRODUCE HEAVY RAINFALL THROUGH MID MORNING. HIGH IN THE UPPER 80S. SOUTHEAST WIND 5 TO 10 MPH. CHANCE OF THUNDERSTORMS 90 PERCENT.
TONIGHT…PARTLY CLOUDY. LOW IN THE LOWER 70S. NORTHEAST WIND NEAR 5 MPH.
WEDNESDAY…MOSTLY SUNNY. HOT AND HUMID. HIGH IN THE LOWER 90S. SOUTHEAST WIND 5 TO 10 MPH. HIGHEST HEAT INDEX READINGS 100 TO 103 IN THE AFTERNOON.
WEDNESDAY NIGHT…PARTLY CLOUDY. LOW IN THE LOWER 70S. SOUTHEAST WIND 5 TO 10 MPH. HIGHEST HEAT INDEX READINGS 100 TO 102 THROUGH MIDNIGHT.
THURSDAY…MOSTLY SUNNY. A 20 PERCENT CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGH IN THE LOWER 90S. SOUTHWEST WIND 5 TO 10 MPH. HIGHEST HEAT INDEX READINGS AROUND 100 IN THE AFTERNOON.
THURSDAY NIGHT…MOSTLY CLOUDY WITH A 50 PERCENT CHANCE OF THUNDERSTORMS. LOW IN THE MID 60S.
FRIDAY…PARTLY SUNNY WITH A 20 PERCENT CHANCE OF THUNDERSTORMS. NOT AS WARM. HIGH AROUND 80.
344 AM CDT TUE AUG 2 2016; AUDUBON-GUTHRIE-CASS-ADAIR-MADISON-ADAMS-UNION-TAYLOR-RINGGOLD COUNTIES: FLASH FLOOD WATCH IN EFFECT UNTIL NOON CDT TODAY.
Flash Flood Watch for counties shaded in green
* THUNDERSTORMS ACROSS NEBRASKA ARE EXPECTED TO ADVANCE ACROSS SOUTHERN IOWA THIS MORNING…AND POSSIBLY MERGE WITH STORMS ALREADY DEVELOPING ACROSS SOUTHEAST IOWA. THIS MAY RESULT IN A PROLONGED PERIOD OF MODERATE TO HEAVY RAINS OVER SOUTHERN IOWA…INCLUDING LOCATIONS SOUTHWEST WHICH SAW FOUR TO SEVEN INCHES OF RAIN AND WOULD BE VERY SUSCEPTIBLE TO FLOODING FROM ADDITIONAL HEAVY RAINS.
* RAINFALL AMOUNTS MAY EXCEED AN INCH PER HOUR WITH SEVERAL INCHES POSSIBLE BY LATER THIS MORNING. FLASH FLOODING COULD DEVELOP QUICKLY…ESPECIALLY ACROSS GUTHRIE…ADAIR…UNION AND RINGGOLD COUNTIES WHICH WERE HARDEST HIT LAST NIGHT.
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.
FREMONT IA-MILLS IA-POTTAWATTAMIE IA-MONTGOMERY IA-329 AM CDT TUE AUG 2 2016
SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN MONTGOMERY…WESTERN FREMONT…MILLS…POTTAWATTAMIE.COUNTIES UNTIL 415 AM CDT…AT 328 AM CDT…DOPPLER RADAR WAS TRACKING STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM NEAR FORT CALHOUN NE TO 3 MILES SOUTHEAST OF PAPILLION NE TO DOUGLAS. MOVEMENT WAS EAST AT 45 MPH. WINDS OF 30 TO 45 MPH WILL BE POSSIBLE WITH THESE STORMS AS THEY MOVE THROUGH THE AREA EARLY THIS MORNING.
LOCATIONS IMPACTED INCLUDE…
OMAHA…COUNCIL BLUFFS…BELLEVUE…PAPILLION…LA VISTA… NEBRASKA CITY…PLATTSMOUTH…RALSTON…GLENWOOD…SYRACUSE… OAKLAND…MALVERN…SIDNEY…WEEPING WATER…TREYNOR…UNDERWOOD…CARSON…WALNUT…MINDEN AND PACIFIC JUNCTION.
THIS INCLUDES THE FOLLOWING HIGHWAYS…
HIGHWAY 2 IN NEBRASKA BETWEEN MILE MARKERS 481 AND 508.
HIGHWAY 34 IN IOWA BETWEEN MILE MARKERS 1 AND 30.
HIGHWAY 59 IN IOWA BETWEEN MILE MARKERS 28 AND 64.
HIGHWAY 75 IN NEBRASKA BETWEEN MILE MARKERS 39 AND 99.
INTERSTATE 29 BETWEEN MILE MARKERS 4 AND 71.
INTERSTATE 80 IN IOWA BETWEEN MILE MARKERS 1 AND 23.
INTERSTATE 80 IN NEBRASKA BETWEEN MILE MARKERS 448 AND 454.
244 AM CDT TUE AUG 2 2016
SIGNIFICANT WEATHER ADVISORY FOR WESTERN HARRISON and NORTHWESTERN POTTAWATTAMIE COUNTIES IN IOWA, & EASTERN DODGE…SOUTHERN BURT…WASHINGTON AND NORTHEASTERN SAUNDERS COUNTIES IN NE, UNTIL 330 AM CDT…AT 244 AM CDT…DOPPLER RADAR WAS TRACKING STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM NEAR CRAIG TO FREMONT. MOVEMENT WAS EAST AT 40 MPH. WINDS IN EXCESS OF 40 MPH WILL BE POSSIBLE WITH THESE STORMS.
LOCATIONS IMPACTED INCLUDE…
FREMONT…BLAIR…TEKAMAH…ARLINGTON…FORT CALHOUN…HOOPER… MONDAMIN…NICKERSON…KENNARD…INGLEWOOD…MODALE…UEHLING… CRAIG…HERMAN…WINSLOW…FREMONT LAKES STATE RECREATION AREA… DESOTO BEND NATIONAL WILDLIFE REFUGE… SUMMIT LAKE STATE RECREATION AREA AND CAMP CEDARS. THIS INCLUDES THE FOLLOWING HIGHWAYS…HIGHWAY 275 IN NEBRASKA BETWEEN MILE MARKERS 140 AND 156. HIGHWAY 30 IN IOWA BETWEEN MILE MARKERS 1 AND 5. HIGHWAY 30 IN NEBRASKA BETWEEN MILE MARKERS 423 AND 450. HIGHWAY 75 IN NEBRASKA BETWEEN MILE MARKERS 105 AND 132. HIGHWAY 77 IN NEBRASKA BETWEEN MILEMARKERS 112 AND 139. INTERSTATE 29 BETWEEN MILE MARKERS 79 AND 92.
MADISON IA-GUTHRIE IA-UNION IA-RINGGOLD IA-ADAIR IA-
1217 PM CDT MON AUG 1 2016
THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 300 PM CDT FOR
SOUTHWESTERN MADISON…SOUTHERN GUTHRIE…UNION…NORTHERN RINGGOLD ND ADAIR COUNTIES…
AT 1212 PM CDT…DOPPLER RADAR INDICATED THUNDERSTORMS CONTINUING TO PRODUCE HEAVY RAIN ACROSS THE WARNED AREA. RADAR ESTIMATES INDICATE THAT AS MUCH AS 4 TO 6.5 INCHES HAS FALLEN ACROSS THE WARNED AREA. ALTHOUGH NO REPORTS OF FLASH FLOODING HAVE BEEN RECEIVED YET…FLASH FLOODING REMAINS A DISTINCT POSSIBILITY.
SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE…
CRESTON…GREENFIELD…STUART…GREEN VALLEY LAKE…AFTON…ADAIR…
FONTANELLE…CASEY…ORIENT…LORIMOR…MENLO…MACKSBURG…
CROMWELL…ARISPE…SHANNON CITY…KENT…THAYER…GREENFIELD
MUNICIPAL AIRPORT…NODAWAY PARK AND GREEN VALLEY LAKE STATE PARK.
State climatologist Harry Hillaker says most of the state got more rain than normal in July. “Statewide averaging a little bit over six inches — and typically you get about four-point-two inches or rainfall during the month,” Hillaker says.
In Atlantic, at the KJAN Studios, we received 7.78” of rain during the month, which was 3.16” more than average. The most rain fell on July 11th (1.25″), July 17th (1.38″), July 19th (1.68″), and July 27th (1.5″). Hillaker says there was one area of the state that missed out on the extra rain. Hillaker says “The far northwest corner along the South Dakota border, where some areas are only roughly about half the usual amount of rain up that way. And fortunately they had had fairly good rainfall earlier this season, but got left out for the most part during July.”
All the rainy days were offset by the sunny ones when it came to the average temperature. “Overall averaged out to just two-tenths of a degree cooler than usual,” Hillaker says. “Had a couple of episodes of unusually cool weather, one to start off the first three or four days of the month where our temperatures were well below normal, a very cool Fourth of July for example.”
In Atlantic, the average high of 83 was 2.17-degrees cooler than the normal, while the average low of 62 was one degree cooler than normal. The warmest day was July 21st (92 degrees), while the coolest morning was the 17th (51 degrees). Hillaker says Iowa also had one week near the end of the month where high heat and humidity made it feel “pretty miserable” outside.
He says we had heat index of 110 degrees or higher four days in a row from the 20th to the 23rd. The heat index factors in what it feels like with the heat and humidity combined. ” And the highest heat index reading of 119 degrees came in Shenandoah,” according to Hillaker. That was on July 21st.
(Radio Iowa/KJAN weather data)
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