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Storm Chances Today

I plan to depart for southwestern Iowa shortly, follow the links below for the latest information on today’s severe weather threat. The live coverage link will have my video stream as well as here on my website.

 

Latest information via Iowa Weather Network:  Facebook -  TwitterGoogle+Live Coverage

Watch Likely for Western Iowa

A Severe Thunderstorm Watch is likely for Western Iowa, areas along and west of US Highway 71, for damaging wind potential and possibly some large hail as storms ongoing in Nebraska and Iowa make their way into the state.The area circled in red on the map below is the area being considered for the watch.

simuawips

I’m currently sitting in Sioux City in advance of tomorrows severe weather potential, with the whole state having a chance at severe weather.

Updates

I have been terrible about keeping this updated lately. I am looking at chasing this weekend, but haven’t ironed out the details yet. It does however appear that anyone with outdoor plans for this weekend into Monday in Iowa and surrounding states should keep an eye on the weather.

Red Flag Warning for Boone, Dallas Counties until 8 PM

…DANGEROUS FIRE WEATHER CONDITIONS THIS AFTERNOON…

.STRONG SOUTH TO SOUTHWEST WINDS OF 20 TO 25 MPH AND GUSTS TO NEAR
40 MPH…COMBINED WITH VERY LOW RELATIVE HUMIDITY WILL RESULT IN
DANGEROUS FIRE WEATHER CONDITIONS OVER MUCH OF NORTHERN AND
WESTERN IOWA BY THIS AFTERNOON AND INTO THE EARLY EVENING.

…RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 8 PM CDT THIS
EVENING…

THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A RED FLAG
WARNING FOR EXTREME FIRE CONDITIONS…WHICH IS IN EFFECT FROM
NOON TODAY TO 8 PM CDT THIS EVENING. THE FIRE WEATHER WATCH IS NO
LONGER IN EFFECT.

* TIMING…THE RELATIVE HUMIDITY WILL DIP BELOW 25 PERCENT BY NOON
AND CONTINUE TO DECREASE DURING THE AFTERNOON. THE LOWEST
RELATIVE HUMIDITY AND THE STRONGEST WINDS ARE EXPECTED BETWEEN 1
PM AND 5 PM TODAY.

* AFFECTED AREA…WEST CENTRAL TO NORTH CENTRAL IOWA.

* WIND…SOUTH TO SOUTHWEST WINDS OF 20 TO 25 MPH WITH GUSTS AS
HIGH AS 40 MPH ARE POSSIBLE BY THIS AFTERNOON.

* RELATIVE HUMIDITY…AS LOW AS 17 PERCENT.

* FUEL…MANY WILD GRASSES ARE NOT FULLY GREEN AS A RESULT OF THE
LATE SPRING AND COULD POTENTIALLY BURN MORE EASILY THAN IS
TYPICAL FOR THIS TIME OF YEAR.

* IMPACTS…FIRES WILL SPREAD QUICKLY IN THESE DANGEROUS
CONDITIONS AND BURNING IS STRONGLY DISCOURAGED.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW…OR WILL SHORTLY. A COMBINATION OF
STRONG WINDS…LOW RELATIVE HUMIDITY…AND WARM TEMPERATURES CAN
CONTRIBUTE TO EXTREME FIRE BEHAVIOR.

From Drought to Flood

The weather in the state is fairly active this morning as shown on the watch/warning map below.

map-large

Severe Thunderstorm Watch is in effect for portions of south central, southeast, and east central Iowa into adjacent portions of Missouri and Illinois until 5 PM. Recent rainfall has reduced, if not resolved the drought conditions in portions of the state with flood watches and warnings now in effect in many areas including parts of the Mississippi.

Here it comes…

Visibilities dropping off in the southwest part of the state…

vsby_contour_1800

Wild Weather

Icing one day, now we jump to more spring like weather with showers and isolated thunderstorms popping up across the area. Here is a quick look at the Des Moines radar from a few minutes ago.

KDMX-012813-2100

Sunday Morning Update: Icy Roads, Tow Bans in effect

Roads across the state are beginning to deteriorate as freezing rain is falling in locations. Icy roads and bridges have been reported in a number of locations as well as towing prohibitions being established. A partial list of the bans is below

Current Tow Bans as of 8:00 AM
Interstate 35: From County Road G14 to County Road R75, this includes all of I-35 in the Des Moines Metro
Interstate 80: From County Road P48 to County Road X30, this includes all of I-80 in the Des Moines Metro
Interstate 235: All of Interstate 235
US Highway 6: From Interstate 80 to County Road X14
US Highway 20: From Iowa 17 North to County Road S27
US Highway 30: From Greene/Boone County Line to Marshall/Tama County Line
US Highway 34: From Adams/Union County Line to Lucas/Monroe County Line
US Highway 63: From County Road G17 to County Road E69
US Highway 65: From US 69 South to Story/Hardin County Line
US Highway 69: From US 65 to US 20
US Highway 151: From Interstate 80 to County Road E66
US Highway 169: From Interstate 80 to Boone/Webster County Line
US Highway 218: From Washington/Johnson County Line to Interstate 80
Iowa 1: From Iowa 22 to US 30
Iowa 5: From US 65/69 to Interstate 35
Iowa 14: From Iowa 163 to County Road D67
Iowa 44: From County Road P30 to Iowa 141
Iowa 141: From County Road P46 to Interstate 80
Iowa 163: From US 69 to Iowa 14
Iowa 330: From US 65 to Iowa 14

The watch/warning/advisory map is relatively unchanged from the previous post other than NWS Davenport replacing their Winter Storm Watch with an Ice Storm Warning for a few counties and Freezing Rain Advisory for the rest.

watchwarn-012713-0811

 Freezing Rain Advisory | Winter Storm Warning | Ice Storm Warning | Winter Weather Advisory

Second Update

Another quick look at the watch/warning/advisory map in advance of the winter storm set to come through the state.watchwarn-012613-2352

Freezing Rain Advisory | Winter Storm Warning | Winter Storm Watch | Winter Weather Advisory

The Iowa Weather Blog has a more detailed look at the system in it’s latest post.



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