Dangerous Heat

A Heat Advisory is in effect for parts of eastern Iowa for the rest of the afternoon. The heat indices are expected to exceed 100 degrees. Drink plenty of water to stay hydrated.

DO NOT leave a child or animal in the car in this heat…even if you leave the window open a little…DON’T do it.  It can be deadly for them.

 


Too much heat is dangerous. Last year 94 people died, across the US, due to the heat. Use caution as the heat continues through the week.

 

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Posted under Heat

This post was written by Schnack on June 13, 2017

Increasing Humidity this Weekend

Our stretch of warm weather has begun in eastern Iowa. Today is one of the “cooler” days. Highs reach the low 80s to near 90° this afternoon. Humidity stays on the low side today, keeping things comfortably warm. A few showers and storms track through this afternoon into the early evening (severe weather risk is low). Not everyone sees rain today and some will only see sunshine on this Friday.

Tonight, as the temperatures fall, we feel a little more of the moisture in the air. If you’re planning a campfire, bring the water and a light blanket as overnight lows fall into the mid-60s.

Humidity slightly increases again during the day Saturday. Temperatures rocket into the 90s for most of the area tomorrow. The combination of heat and humidity brings the concept of heat index – how warm it feels outside.

Heat indices near 100° not only for Saturday afternoon but also on Sunday, as well.

Strong winds pick up on Saturday and continue into mid-week.

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Posted under Forecast Discussion, Heat, Records, Temperatures

This post was written by Rachael Peart on June 9, 2017

Possible Heat Wave This Weekend

Today will be one of the more comfortable days we see for a while. A nearly stationary front along the Iowa-Minnesota line brings a few showers and isolated storms to the area today. Severe weather chances are low for today but storms may produce some stronger winds and hail. Overnight, scattered rain chances continue with lows falling to near 60°.

The humidity today won’t be too bad but that begins to change for your Friday.  The front to our north becomes a warm front and tracks away to the north. A southwesterly wind pulls in warm air for the next few days. Highs on Friday reach at least the low 80s for everyone. There will be a slight uptick in humidity tomorrow but there’s nothing slight about humidity for the weekend.

Highs Saturday through Monday reach the 90s across eastern Iowa and the humidity will be no less than uncomfortable.

Make sure to practice heat safety tips to enjoy the weather. In addition to the heat and humidity, we will have breezy to windy conditions Saturday through Tuesday.

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Posted under Forecast Discussion, Heat

This post was written by Rachael Peart on June 8, 2017

Less Humid but still Hot Sunday

Another shot of mid-summer is coming to eastern Iowa today. Highs once again soar into the mid-80s, with some 90s possible this afternoon.

There will be two main changes from Saturday’s forecast. The first is that a cold front tracking through the state will push much of the humidity from the past couple of days out of the area. That being said, it will be a little more comfortable as you’re heading out on your Sunday errands. The second difference between today and Saturday is that we do not have a chance of storms. The moist air that is moving out with the cold front helped to fuel overnight storms in eastern Iowa.

Clear skies continue overnight. Without the humidity that has been in place the past two nights, it will be a comfortable night. It will be nice for grilling or a campfire with light winds this evening. Lows: 56-61. High pressure begins to build in – bringing in more nice weather through midweek.

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Posted under Forecast Discussion, Heat

This post was written by Rachael Peart on June 4, 2017

Summer Heat This Weekend

It feels like we ended May and went straight into mid-July. Highs Friday reached the low to mid-80s across eastern Iowa. Today, with plenty of sunshine and southwesterly winds, temperatures will be similar. Except…highs today will be a couple of degrees warmer. By this afternoon, most (if not all) of eastern Iowa should reach the mid to upper 80s – an isolated 90° high is possible Saturday afternoon. Increased humidity today will make it feel a few degrees warmer. A few scattered showers and storms are possible this afternoon and into the evening. Even with the higher humidity, the severe weather risk is on the low end for this afternoon. Strong winds and hail are possible if any storms strengthen.

Showers and storms track out overnight. Lows: 62-67. It will be another mild and humid night across the area. A cold front is crossing the upper Midwest this weekend and clears the area Sunday late morning/afternoon. Highs tomorrow will be a couple degrees cooler but the real “cool down” comes on Monday with highs “only” in the low 80s.

Most of this week stays quiet, with the exception of a shower or two on Thursday with another passing cold front. Highs all week stay near or above average with mostly sunny to partly cloudy skies through next weekend.

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Posted under Forecast Discussion, Heat

This post was written by Rachael Peart on June 3, 2017

Here Comes the Humidity

After a few sprinkles yesterday, today will be completely dry. The clouds have mostly moved out and leave us with plenty of sunshine through the mid-week. A lighter breeze from the northwest dominates today under mostly sunny skies.

Overnight clear skies continue with the chance of some patchy fog. Lows tonight: 48-52. We start Thursday with sunshine, as well. A warm from to the southwest tomorrow pushes in some warmer air. Highs tomorrow reach the mid to upper 70s. We could see a few showers and isolated storms later in the day Thursday.

The chance of storms returns again for Friday and Saturday. Humidity increases Friday and stays higher into Saturday, as well. Friday features  highs in the 80s and eastern Iowa will be a couple of degrees cooler on Saturday.

Sunday is dry with highs in the mid-70s and partly cloudy skies. Expect more sunshine than clouds Sunday through at least next Tuesday.

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Posted under Forecast Discussion, Heat

This post was written by Rachael Peart on May 31, 2017

Dangerous Heat Thursday and Friday

An excessive heat watch goes into effect on Thursday and extends into Saturday. The heat index could be as high as 110°.
Excessive Heat Watch
Heat can kill. If you look at the 30 year averages when it comes to weather related fatalities…heat is #1 by a lot.
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Thursday and Friday will the hottest two days in this heat wave. There will be some relief from the heat by Sunday.

PM Data Driven Line Graph-Highs

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Posted under Heat

This post was written by Schnack on July 18, 2016

Heat Wave Ahead

It is July after all and the weather typically is hot. Well today was not that way. Even with no rain high temperatures were only in the 70s. Usually to have highs held down in the 70s in July it would have rained for some of the afternoon.

DMA High Today3D

This time next week the weather will be much different. The hottest air of the season is on the way next week. High temperatures will be near or into the 90s starting Wednesday and remain there into the weekend of July 23-24.

Here is a look at potentially the highest heat index on Thursday. It could be as high as 105° in eastern Iowa. Heat Advisory or Heat Warning is possible later next week.
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Normal high temperatures this time of year are in the mid 80s. Above normal temperatures are likely from Wednesday through almost the end of July. That means there might be a lot of days near 90° or above in our future.

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This is the time of year when high temperatures reach 90°. Here is a look at the last ten years at Waterloo showing how many days during each month the high temperature was 90° or warmer. Not too many in the last couple of years. In 2012, there were a lot of days with temperatures of 90° or warmer.
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Posted under Heat

This post was written by Schnack on July 15, 2016

Highs in the 90s

The advertised heat and higher humidity is here. High temperatures are forecast to be in the low 90s Friday (June 10).

DMA Forecast - Tomorrow NEW

It will be the first day of the year we reach 90 degrees or warmer. Last year the first day to reach 90 degrees was today (June 9). By the way, Waterloo had a record high temperature on that day as well.

Avg First 90 Deg Day - 4 Lines

 

The last time the temperatures were 90 degrees or warmer was back on September 6, 2015.

 

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Posted under Heat

This post was written by Schnack on June 9, 2016

Iowa Heat Awareness Day 2016

June 9, 2016 is Iowa Heat Awareness Day. There are many dangers that come along with warmer weather. Just in 2015 alone, 24 children died in vehicles on hot days. Remember – “Look before you lock” to check for children and pets. It doesn’t take long for the inside of a car to warm up to over 100° when the outside temperature is 80°.

Car Heat Awareness

Even outside of cars, there are many health risks that come with prolonged exposure to heat. Limit time in the heat or take frequent breaks and stay hydrated in order to avoid these serious – and possibly fatal – illnesses.

Heat Illness Symptoms

Heat index measures how it feels (known as the “apparent temperature”) based on the air temperature and the current dew point. Dew point is a measure of moisture in the air as well as the main indicator for how humid it is. The higher the heat index, the higher the possibility of developing a heat related illness.

Heat IndexTd

Temperatures this weekend could exceed 90° and the forecast stays warm through next week.

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Posted under Educational, Heat

This post was written by Rachael Peart on June 9, 2016