... Canadian high pressure will build from the Great Lakes into the Northeast and Middle Atlantic through the weekend, then gradually shift offshore during the first half of next week.
NEAR TERM /UNTIL 6 AM SUNDAY MORNING/...
A strong Canadian high pressure was located over the eastern Great Lakes into the Northeast and this high will continue to build into the Mid-Atlantic region tonight bringing dry weather and cool conditions. The pressure gradient is gradually relaxing this afternoon as northerly winds will ease by late afternoon,
Temperatures will drop tonight under clear skies and fairly light winds. In areas west of the Blue Ridge overnight lows will drop into the mid to upper 30s...and even a few locations in the far western mountains dipping briefly to near freezing early Sunday morning. Where temperatures are expected to be in the mid 30s or cooler have issued a Frost Advisory for western locations of Maryland, Virginia and eastern West Virginia.
SHORT TERM /6 AM SUNDAY MORNING THROUGH MONDAY NIGHT/... After a clear and chilly start Sunday morning, expect sunny conditions for the day with temperatures maxing out during the afternoon close to what we had on Saturday. Northerly winds continue on Sunday but not quite as strong as on Saturday.
Monday will be almost a repeat of Sunday's weather as well with high pressure dominating the region.
LONG TERM /TUESDAY THROUGH SATURDAY/... Overall good agreement amongst guidance in regards to the extended period. A quiet stretch of weather is expected to continue throughout much of next week. Upper level ridging will induce a surface high pressure cell over the region Tuesday and Wednesday which will continue the dry weather trend. The placement of the high will also keep Teddy well offshore with no impact for the Mid- Atlantic.
The high will begin to slowly migrate offshore late Thursday into Friday, which will redirect the wind to a southerly direction, bringing in warmer temperatures into the region. A cold front will then approach the region for the beginning of the weekend which, as of now, looks to be our next best chance for any precipitation.