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District of Columbia

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elleng

(136,043 posts) Fri Apr 7, 2023, 11:48 AM Apr 2023

SLEET in the 50s?

We have something very weird happening in the DC area on this Friday. We are seeing sleet with temps from 50-55 degrees. How is this possible? There's an unusual dry layer a few thousand feet up. We *think* droplets passing thru it are freezing due to evaporational cooling.

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SLEET in the 50s? (Original Post) elleng Apr 2023 OP
Are you certain it's not small hail? hippywife Apr 2023 #1
Capital Weather Gang posted it, I know nothing more! elleng Apr 2023 #2
From NWS. hippywife Apr 2023 #3

hippywife

(22,767 posts)
1. Are you certain it's not small hail?
Reply to elleng (Original post)
Fri Apr 7, 2023, 12:40 PM
Apr 2023

I don't think you can have sleet with temps that high. Is it coming down in connection with a thunderstorm?

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hippywife

(22,767 posts)
3. From NWS.
Reply to elleng (Reply #2)
Fri Apr 7, 2023, 12:48 PM
Apr 2023
https://www.weather.gov/ama/preciptypes

Sleet occurs when a snow flake partially melts and then refreezes. For partial melting to occur, the maximum temperature in the melting layer is typically between 33.8 and 37.4°F (1 and 3°C) and for a relatively thin layer (less than 2,000 feet thick).
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