Storms Tuesday

We are tracking a cold front. It is forecast to move through eastern Iowa Tuesday afternoon and evening. A few storms are forecast to develop along and ahead of the front. The more sunshine we have, after the morning clouds, the better chance we have at severe storms. Primary threat will be high wind, large hail and heavy rain.

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This post was written by Schnack on July 27, 2015

Storms Possible Tonight

We are tracking the potential for storms in Minnesota to track southeast with damaging wind across northeast Iowa. Right now it looks like areas northeast of Waverly. Timing of the storms would be before 3 AM Saturday. The other cluster of storms in Nebraska are forecast to move east and weaken.

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There are a number of severe thunderstorm watches out for areas to our northwest and west.

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This post was written by Schnack on July 17, 2015

Hot, Humid and Storms

Clouds will increase tonight with an isolated storm possible after midnight. The humidity level increases tonight as well. By the way, the humidity level will be high through most of next week with dew points in the upper 60s and low 70s. The front, southwest of Iowa, is forecast to move northeast through Iowa. How far northeast the front goes will have an impact the placement of the storms this weekend.
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There is a chance for a few showers and isolated storms Saturday. The best chance would occur before noon. No severe weather expected. An isolated storm is possible Saturday night, but many locations are expected to remain dry. We stay dry Sunday when the humidity level really cranks up (dew points low to mid 70s) and temperatures approach 90 degrees. The heat index could be near 100 Sunday. Sunday night there is a chance of storms and some of those could be severe with damaging wind and heavy rain. The risk of severe weather is across eastern Iowa (see map below). If they form, they could last into Monday morning.

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Any storms that form will produce heavy downpours that may produce some flooding. This will be something we will continue to track through the weekend.

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This post was written by Schnack on July 10, 2015

More Rain and Possible Severe Storms

We are tracking the potential for more severe storms tomorrow…particularly Wednesday night. A stray shower is possible this afternoon/evening otherwise a lot of sunshine continues.

There is a chance for a few showers/storms to move into eastern Iowa, south of Cedar Rapids, late tonight into early Wednesday morning. A few showers or a stray storm are possible in the afternoon. At this point, these storms don’t appear to be severe.

The best chance of storms and severe weather will be Wednesday night. Right now the timing for the severe storms would be between 7 pm and 3 AM. Large hail, damaging wind and heavy rain would be the primary threat. Isolated tornadoes are possible, but chances are low.

Here is the Storm Prediction Center Outlook for Wednesday/Wednesday night.
KWWL 2015 MAX Storm ED
As mentioned above, some of these storms will have the potential to drop some heavy rain in a short period of time. Here is the rain potential through Thursday evening.

 

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Due to the heavy rain possible south of Highway 20 with these storms, there is a FLASH FLOOD WATCH in effect Wednesday afternoon into Thursday morning.
Flash Flood Watch

 

 

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This post was written by Schnack on June 23, 2015

Weak Funnel Clouds

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The above photo is a funnel cloud near Marshalltown Sunday. Similar type thing is possible this afternoon.

From NWS
Conditions are favorable for weak funnel clouds until sunset south of Cedar Rapids. A few reports of funnel clouds have been reported in Iowa and Johnson Counties with scattered showers/storms. Conditions are favorable for development of more weak funnel clouds, but not favorable for the funnels to reach the ground. These funnels are typically brief, only drop a few hundred feet from the cloud base and rarely become a tornado or cause damage.

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This post was written by Schnack on June 15, 2015

Chilly Monday

At 1 PM the temperatures are 15 to 25 degrees colder than they were on Sunday. A gusty wind from the northwest is pulling much colder area south across the state. Clouds across northern Iowa are adding to the chill in the air. Look at the temperatures in northwest Iowa, they are in the upper 30s.

Vis Sat Radar Black Temp

 

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This post was written by Schnack on May 18, 2015

Severe Weather Outlook Update

The threat for any severe storms is diminishing. Isolated storms possible this evening then clear overnight.
KWWL 2015 MAX Storm ED

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This post was written by Schnack on May 17, 2015

Sunday Afternoon Weather Update

An isolated shower/storm is possible late this afternoon/evening. The threat for severe weather is diminishing. If any storm were to develop and become severe…the primary threat would be damaging wind. Tonight will be mostly clear with a lighter wind. The wind increases Monday again under a partly cloudy sky and cooler temperatures. Cooler than normal temperatures continue through Wednesday. Wednesday is also the next chance for a few showers.

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This post was written by Schnack on May 17, 2015

A Rainy Night

Most locations will be dealing with rain tonight. An area of rain is spreading ENE across eastern Iowa this evening. Here is the radar this evening.
KWWL 2015 MAX Storm ED

There is an area of heavy rain southwest of Des Moines that is forecast to move across southern Iowa later this evening/tonight. The air is a little more dry across northern Iowa preventing some of the rain from moving north. Here is the rain potential through Tuesday evening. Most of this will fall tonight and early Tuesday morning.

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There is no risk of severe weather tonight across our area. Severe storms are going to remain south of Iowa tonight. The slight risk area is mainly across Missouri and southwest into Kansas.
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This post was written by Schnack on May 4, 2015

Strong Wind Today and Windy Again Tuesday

A large area of low pressure over the Midwest is the reason for the colder temperatures this week. Temperatures will remain below normal through the weekend.

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Wind gusts today were close to 50 mph. Tuesday will be windy again with gusts near 35 mph. The wind increases around 8 or 9 AM Tuesday and remains windy until after sunset.

Peak Wind Gust - 4 Lines

We had a few showers this afternoon and got reports of small hail from some locations with photos from Solon and south of Hudson.

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Here is how much rain fell Saturday/Sunday/Monday:

Waterloo 1.28″
Dubuque 0.64″
Cedar Rapids 1.69″
Iowa City 1.12″

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This post was written by Schnack on April 20, 2015