…Remarkably quiescent pattern continues across much of the Continental
United States….
…Light rain showers across Upper Midwest/Upper Great Lakes today…
…Snow/rain showers crossing Oregon, Idaho toward Yellowstone/Tetons…
…Well above-average temperatures continue over the Central and Eastern
U.S…
A progressive mid-level trof will continue to rapidly advance across
Southern Canada and clip the northern tier states through the Great Lakes
Wednesday. The associated cold front will bring some light rain showers
across these areas, but slowly dry out as it crosses Southeast Canada and
the Northeast by Thursday. Warm air along/ahead of the front will once
again promote well above normal temperatures across New England today with
some locales potentially reaching record today and Wednesday before
returning to normal, or slightly below normal the day after the passage.
The mid-section of the U.S. will once again see larger scale ridging
allowing temperatures to rise 15-20 degrees above normal into
Wednesday/Thursday with some locations in the Southern Plains pushing
daily records as well into the low 90s. So not dangerous heat, but
clearly atypical.
A weak upper-level upper level low will advance into the Pacific Northwest
by Wednesday into Thursday. This system will be below average in moisture
transport as it quickly moves through the terrain of Oregon, Idaho into
southwest Montana/northwest Wyoming producing snow showers and maybe light
rain to the lower elevations.
Gallina
Graphics available at
https://www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php
