The past several weeks has offered a pattern of constant ups and downs and we will continue to this this theme this week, as we go from the coldest air mass of the season yesterday and today, to above normal levels by tomorrow and then back to below average for the weekend and so on so forth
We see a deep trough that took over the Northeast a mere 36-48 hours ago is now well on its way out of here and giving way to a developing Southeast ridge for tonight through Thursday night, the wind flow will change from easterly to south and southwest by later tonight giving way to warm air advection, lows tonight with clouds and southerly winds will stay above average despite today’s highs still being below average, lows will be in the upper 30s to mid 40s for most of the area
Tomorrow will feature partly sunny skies for the most part with highs soaring into the lower to mid 60s area wide, if there’s more sunshine than expected we could see some isolated mid to upper 60s especially for the Philadelphia and DC/Baltimore metros as a nice ridge takes hold of the east
Tomorrow night a cold front will begin to come east, we should see skies become overcast with a continued SW wind keeping lows in the mid 40s to low 50s!
By Thursday morning and early afternoon the front will come across the area with scattered to widespread showers and highs in the upper 50s to middle 60s for high
This cold front will knock down the southeast ridge and give way to another polar air mass and below average temperatures from Friday through Sunday with highs in the mid 40s to low 50s and lows in the upper 20s to mid 30s for most, some upper 30s to around 40 along the coast and urban location under sunny skies and dry conditions, however we already see a trough beginning to move towards the western US which would argue for another quick moderation, probably a zonal/progressive pattern and perhaps rejuvenation of a southeast ridge followed by more of the same roller coaster ride through the foreseeable future, I don’t really see anything that would suggest any pattern locking in for more than a few days at a time, although I could see a southeast ridge pattern become more established by the end of next week potentially depending if the MJO does really go towards phase 4-5 like forecasted