Alan Sealls Weather

Alan Sealls Weather Alan Sealls is a retired TV Chief Meteorologist with 16 Emmys.

BS Cornell, MS FSU, Fellow of AMS, 2025 AMS President-Elect, Adjunct Professor, Author, Consultant and Expert Witness, Past President NWA.

It’s a Christmas crisis of dendritic dimensions- a mutation of meteorological magnitude. This is the time of year when s...
12/24/2025

It’s a Christmas crisis of dendritic dimensions- a mutation of meteorological magnitude. This is the time of year when some of us are blanketed with a blizzard of Christmas and Holiday cards featuring snowflakes. ❄️❄️ What joy doth flake of snow bring to those starved of a Norman Rockwell idyllic winter scene? Oft times, something is awry that may get past your eye. I’m referring to artistic renderings of snowflakes that are inaccurate, in a science sort of way. I need to draw your attention to imposter snowflakes.

It's a “snowfake” scam that’s easy to fall for. It’s like being duped by counterfeit thousand-dollar bills. Those are things most of us don’t get our hands on. Ice crystals are frozen water, aka H2O. The basic shape of an ice crystal is a hexagon (6 sides), not an octagon (8 sides). A single ice crystal has symmetry. Ice crystals, just like the ones in your freezer, or on your car or window on a frosty morning, can grow and sprout dendrites along their 6 arms, resulting in ornate hexagons. This you might notice if you scrape some freezer frost, put it on a dark cloth and look at it with a magnifying glass, without letting your hot breath melt it.

Now that you are aware, have some fun with your kids and see how often they can spot the counterfeit snowflake of more or less than 6 sides, on Christmas cards and displays and on TV commercials. With all fairness to designers and graphic artists, I agree that it is easier to draw a snowflake with 4 or 8 sides, and it is true that Fred Flintstone only has 4 fingers on each hand, and no one seems bothered by that.

I’ll be crystal clear, yes, Virginia, there is a hexagonal snowflake, and no two are identical. I know, you’re saying, “Alan, you have a little too much time on the five fingers of your hands.” To that, I offer a frosty stare.

This “Imposter snowflake” is an excerpt from my book, Weather Things You Always Wanted to Know, originally published in 2019 in Lagniappe Newspaper.

12/22/2025
12/21/2025

Happy Winter! 10:03am Eastern Time today marked the Winter Solstice, the day of the year when the Earth's northern hemisphere is tilted furthest away from the Sun. This also means that today is the shortest of the year (daylight-wise) for those of us north of the equator.

Will wintry temperatures be in your area? 😬
Visit weather.gov to see.

12/20/2025

New AMS Statement: Dismantling NSF’s National Center for Atmospheric Research would harm public safety and weaken U.S. leadership in weather and climate science.

For over 60 years, NSF NCAR has improved forecasts and early warnings that save lives and reduce disaster impacts. A better path forward is to strengthen, not dismantle, this important institution. AMS is prepared to help.

Read the full statement: https://bit.ly/4q6eChn

[Photo: "Scott's Bluff" by Isaac Schleusche was a finalist in the 2024 AMS Photo contest]

With cold air invasions come "ice flowers." Be on the lookout.
12/15/2025

With cold air invasions come "ice flowers." Be on the lookout.

Ice flower is a nickname for a miniature sculpture of ice that forms on only a few kinds of herbaceous plants, only when soil and weather conditions are just...

12/14/2025

If you are willing to brave the chill...

You might want to sleep on this weather phrase…
12/13/2025

You might want to sleep on this weather phrase…

WORDS OF THE WEEK 💬
Snow pillow — An instrument designed to provide a direct estimate of water equivalence of a snowpack by measuring the pressure due to the mass of overlying snow.

Explore more meteorological terms like snow pillow: https://bit.ly/3nxQzwh

Photo credit 📷: USDA NRCS (left side); Colorado Avalanche Information Center (right side)

12/12/2025

I’ll be doing my final weather book signing of the year for in the lower level of Lupercalia Art Society 6pm-9pm tonight 12/12

12/12/2025

Perfect dry, seasonably cool weather tonight for in , for my book signing at Lupercalia Art Society, Friday 12/12

Winter is the season when you hear more talk of atmospheric rivers. Here’s what they are https://youtu.be/pXvmdJsIeq0
12/11/2025

Winter is the season when you hear more talk of atmospheric rivers. Here’s what they are https://youtu.be/pXvmdJsIeq0

Moisture, or water v***r in air, that is concentrated in a narrow band more than several hundred miles wide, and extends across oceans or continents for some...

My final book signing of the year is Friday in   during     at Lupercalia Art Gallery on Dauphin Street. 📚
12/08/2025

My final book signing of the year is Friday in during at Lupercalia Art Gallery on Dauphin Street. 📚

Address

Mobile, AL

Website

https://weatherthings.com/

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