00:00The forecast said low of 40
00:01So why are you scraping fr
00:03Well, the forecast wasn't
00:06air temperature about six
00:07but your windshield can ge
00:09sunset, the glass releases
00:12radiational cooling. Clouds
00:14a blanket slowing that heat
00:15on a clear calm night, the
00:18cool below freezing even whi
00:20stays around 40. If there's
00:21vapor can turn directly into
00:24ice crystals on the glass.
00:26you rule out frost, check m
00:27more than the temperature.
00:28Clear skies and calm winds.
00:30Keep that scraper handy.
