November 2017 Review & December Preview

It was a drier than normal month as far as rain and snow went across eastern Iowa.  And, despite the warm second half of the month, the cooler start to the month caused the monthly average temperature to be at, or just below average.  The only exception is Iowa City, which was 0.2° above the average.

    

The Storm Track 7 forecast calls for a warm start to the first few days of December, but we are certainly in for a reality check as we head into next week.  Here is how a typical December shapes up for Waterloo and Dubuque (where official records are held at the airports).

 

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Posted under Climate, Precipitation Totals

This post was written by Kyle Kiel on November 30, 2017

2016 November 28th Tornadoes

It has been one year since multiple tornadoes touched down in Iowa on a late November afternoon. A cold front tracked through Iowa on November 28, 2016 and fired off a few tornadoes in central and eastern Iowa.  Here are the storm reports from last year:

EF-0 tornadoes were confirmed by the National Weather Service. To read more on those confirmed tornadoes, click here (scroll to the bottom of the page for info on November tornadoes).

November tornadoes are not unlikely, but much less common than in the warmer months. Since 2015, there have been several tornadoes that have touched down in Iowa in November.

November tornadoes in Iowa for 2015 and 2016.

With quiet weather expected through the rest of the week, it looks like the streak of November tornadoes will end with a very quiet month for 2017.

For additional analyses and information on the tornadoes one year ago, click here.

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Posted under Severe Weather, Weather History

This post was written by Rachael Peart on November 28, 2017

Snow in Hawaii

When you think of Hawaii, snow is probably not the first thing that comes to mind. However, early this week, parts of the Aloha State are seeing just that. The National Weather Service in Honolulu issued a winter storm warning for the volcanoes on the Big Island.

Snow in Hawaii happens every year. Any snow is confined to the volcanoes on the Big Island (Mauna Loa and Mauna Kea) as well as Haleakala on Maui. All of these summits reach at least 10,000 feet. Up to three additional inches of snow is expected on the summits of the Big Island.

Hawaii weather alerts as of 2:45 PM CST (10:45 AM HST). Winter storm warnings are in pink.

In lower laying elevations on the Big Island, rain is expected. All precipitation starts as snow high in the atmosphere. As the snow falls, the temperature typically increases and the snowflakes may melt partially or completely before reaching the ground. This is the case on the Big Island of Hawaii – higher elevations see the snow while lower elevations see the melted snow (aka rain).

Snow on Mauna Kea

The winter storm warning continues through 6PM HST (10 PM CST) Tuesday.

For webcams on top of Mauna Kea, click here.

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Posted under Miscellaneous

This post was written by Rachael Peart on November 28, 2017

Cooler Than Last Year

Despite the recent warm weather, November this year has been colder than November last year.

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Posted under Temperatures

This post was written by Schnack on November 27, 2017

Mount Agung

Mount Agung is a volcano in Bali, northwest of Australia and is expected to have a major eruption. Here is a map to show where the volcano is located.

The last time this volcano had a major eruption it was in 1963 and about 1,000 people were killed. The below images show some of the eruptions from the satellite.

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Posted under Volcano

This post was written by Schnack on November 27, 2017

Sunday Sunset Snapshots

We had a beautiful weekend of weather across eastern Iowa.  With some mid and high level clouds in the sky, the sunset on Sunday was excellent.  Here are some photos from KWWL viewers.

Marisa Krivachek – Calmar

 

Kenetta Ladage – Orange, IA

 

Leslie Miller – Waukon

 

Mike Knowles – Dubuque

 

Mike Weinard – Iowa City

 

Morgan McMillan – Waukon

 

Nena and Mark Winter – Waucoma

 

Sheila Rae – Postville

 

Stephanie Kleiner – Waterloo

 

Steve Kofron – Hudson

 

Sydney Alber – Eldorado

 

Taylor Kuennen – West Union

 

Timmy Vakranoff – Anamosa

 

Wendy Perry – Cedar Falls

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Posted under Photo

This post was written by Kyle Kiel on November 26, 2017

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Comparing Snow Cover

Below is a view of what the snow cover was today compared to the same day last year. The image with snow across most of Minnesota was 2016.

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Posted under Winter Weather

This post was written by Schnack on November 24, 2017

Records Broken

It is hard to believe were are at the end of November and highs today reached the 70s. Records were not broken by one or two degrees….they were shattered easily.

Here is a look at other record high temperatures across Iowa.

In addition to record highs today we had some gusty south winds. Here are the peak wind gusts.

30 mph Waterloo
36 mph Dubuque
35 mph Cedar Rapids
34 mph Iowa City

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Posted under Records

This post was written by Schnack on November 24, 2017

Not Too Often

High temperatures are forecast to reach 60° or warmer Friday. The chart below shows the number of times each day has had high temperature of 60 degrees or higher. The outlined area shows just a couple times during this time of the month.

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Posted under Climate, Temperatures

This post was written by Schnack on November 23, 2017

Record Highs Possible Friday

Quiet weather continues tonight under a mostly clear sky. Lots of sunshine and a gusty south wind is on the way Friday morning.

During the afternoon, clouds and a few sprinkles are possible as the wind switches to the northwest. High temperatures are in the upper 50s and low 60s. There are near record levels.

The weekend is mostly sunny with highs in the mid to upper 40s. Monday is warmer with a gusty south wind and sunshine. Dry weather continues through the rest of the month.

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Posted under Forecast Discussion

This post was written by Schnack on November 23, 2017