Light winds and mostly
clear skies will lead to good radiational cooling tonight, though winds might
not be quite calm, and combined with rising dew points, will prevent temperatures
from tanking much below model guidance. A weakening and dry cold front passing tomorrow
morning will hardly be even accompanied by any clouds, with mostly clear skies
dominating. The northeasterly winds will strengthen slightly tomorrow behind
the weak cold front (though strongest winds are staying to the north and the
already weak front is weakening). Sometimes these weak fronts/pressure troughs
actually help mix down any warm air aloft with synoptic-scale descent and cause
it to warm up quicker early in the day, especially with full sunshine like will
be the case tomorrow, allowing the boundary layer to fully mix out and
preventing any lingering low-level inversion that limits the high temperature,
with a dry adiabatic profile up to almost 700 hPa. As such, the high will
probably lean on the warm side of model guidance, around or a bit cooler than today’s
high with a slightly cooler air mass aloft. The sunshine will also help mix any
winds aloft down to the surface.
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| Source: PivotalWeather |
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