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Thursday December 13, 2018

Assignment: Predict the 24 hr minimum temperature (deg F) for Berlin, NH (KBML)

Berlin, New Hampshire is predicted to have the coldest minimum temperature of about -10 F on Thursday, about 20 degrees below average, and it could be the coldest of any of our contest sites. The NWS discussion talks about why that might be: "Tonight, should see clear skies and rapidly diminishing winds after sunset. Should be a good long rad cooling night, especially away from the coast, so lows will like range zero to -10 in the mtns to around 10 on the coast and in srn NH. Coastal areas will likely see enough BL flow to prevent full on rad cooling." So let's forecast the Tmin for Berlin and see how low it can go.

Berlin is a town in south-central New Hampshire, at the southern edge of the famous White Mountains. Wikipedia says that "Around 65% of its residents speak a variant of New England French, which is locally known as 'Berlin French'."

Question: What is this "rad cooling" mentioned in the NWS discussion?

Forecasts for Berlin, NH (KBML)
Forecaster Tmin, deg F (error) Comment Day Score