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.


Posted under Miscellaneous

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

Thanksgiving Travel Weather

It’s one of the busier travel weeks of the year, as Americans head to their Thanksgiving destination to enjoy a good feast.

Here in eastern Iowa, the last couple years of weather on or around Thanksgiving have not been ideal.  Last year, we had rain the day before Thanksgiving, and on Thanksgiving itself it was pretty chilly with temperatures in the 30s and 40s and not much sunshine.  Two years ago in 2015, we had some heavy rainfall across the region the day before Thanksgiving, and even Thanksgiving itself.

This year, however, our weather is looking a little more tame.  Here’s the travel forecast for eastern Iowa if you’re hitting the road in eastern Iowa.  It will be a little chilly Wednesday, with seasonable temperatures on Thanksgiving itself.

If your travels take you elsewhere across the United States, overall, the weather shouldn’t be much of an impact.  Of course, if you’re flying, you’ll want to check in with your airport and airline ahead of time.



Posted under Forecast Discussion, Holiday, Miscellaneous

This post was written by Kyle Kiel on November 19, 2017

Good Night Sun….See You Next Year

Once the sun sets in Utqiaġvik (Barrow), Alaska tomorrow (18th) the next sunrise will not be until Jan 22, 2018.


Posted under Miscellaneous

This post was written by Schnack on November 17, 2017

Daylight Changes

The days have been getting shorter everyday with the nights getting longer since late June. Between the summer solstice in June and the winter solstice in December, more and more daylight is gradually lost.

We are now more than halfway between the summer and winter solstices. Eastern Iowa will lose more than six hours of daylight within the six month period. However, once we reach and pass the winter solstice (also known as the first day of winter), the days slowly become longer and nights shorter.

If you think nine hours of daylight is bad, imagine living in Barrow, Alaska. The northern most point in the U.S. will see the sunset on November 18, 2017 and the sunrise on January 22, 2018. That is over two months of darkness known as “polar night”.

2017 Sunrise and Sunset in Barrow, Alaska. Orange shades show days where sun never rises above the horizon through the end of the year


Posted under Miscellaneous, Weather Trivia

This post was written by Rachael Peart on November 14, 2017

Time to Fall Back

This is the weekend we change the clocks back 1 hour. Sunset today is 6:00 PM. Sunset on Sunday will be 4:57 PM. You get an extra hour of sleep Saturday night.

This is also a good time to change the battery in your smoke detector, carbon monoxide detector and NOAA Weather Radio.



Posted under Miscellaneous

This post was written by Schnack on November 3, 2017

August 2017 Weather Review

Well, August can be summed up in two words: cool and dry.

Here is the monthly climate review for Waterloo, Dubuque, Cedar Rapids and Iowa City.


Posted under Miscellaneous, Precipitation Totals, Temperatures

This post was written by Kyle Kiel on September 1, 2017

Hazy Sky in Eastern Iowa

UPDATE at 8:00 PM: The smoke has become more widespread this evening and is the result of the poor air quality across parts of eastern Iowa.


Did you notice the haze in the sky across portions of eastern Iowa?  It’s being caused by smoke from wildfires in western United States and western Canada.  The smoke was brought down with help from a cold front that moved in from north to south across the area.


Here is a satellite view from the high resolution GOES-16 satellite.

Here is another vantage point from the University of Wisconsin, Madison.

Here’s an explanation from the National Weather Service in Milwaukee.  The new satellite allows us to analyze different products.

A KWWL viewer reported smelling smoke in Dubuque, where the haze was most prominent in our area Thursday afternoon.  The Air Quality Index is in Moderate to Unhealthy for Sensitive Groups range, which means most of us won’t be affected.  Those with lung diseases, older adults and younger children may be affected.



Posted under AIr Quality, GOES-16, GOES16, Miscellaneous, Uncategorized

This post was written by Kyle Kiel on August 31, 2017

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Temperature Drop Due to Storm

The high temperature in Cedar Rapids today was 89° at 4:52 pm with a heat index of 100°. An area of rain/storms was moving northeast and approaching the city around 5:30 PM. The downdraft in the storm was pulling cooler air toward the ground. The rain cooled air in the storm resulted in a temperature drop of 17° in less than one hour.  Officially 0.08″ of rain fell at the Eastern Iowa Airport. Farther south into Johnson County, rain amounts were around 1.25″ in one hour.


Posted under Miscellaneous

This post was written by Schnack on July 18, 2017

June 2017 Weather Review

June started off on a dry note, but we did play catch up by the middle of the month.  Waterloo ended up with above normal rain, while Dubuque, Cedar Rapids and Iowa City ended up with below average rain.  It was also a warmer than average June.



Posted under Miscellaneous, Precipitation Totals, Temperatures, Uncategorized

This post was written by Kyle Kiel on July 1, 2017

Temperature afghan 2016

Take a look at these photos. This is a temperature afghan. A viewer crocheted this throughout 2016. Each row is one day and represents the high temperature that day. The colors are correlated to the high temperature of the day. Here is the color scale to the temperatures:
Below 0: White
Single digits: Gray
Teens: light purple
20s: Dark purple
30s: Blue
40s: Green
50s: Light Green
60s: Yellow
70s: Orange
80s: Red Orange
90s: Red

8 9


Posted under Miscellaneous

This post was written by Schnack on January 13, 2017