Roller Coaster Temperatures to continue for DC with several chances of Rain

Monumental Sunset over the Tidal Basin in Washington, D.C.; photo credit Brook Ward

A few light showers or periods of drizzle are possible on Wednesday as a maritime flow moves in off of the cooler Atlantic ocean. Skies will be mainly overcast with highs only reaching the upper 50s north of DC with lower to mid 60s across our southern suburbs.

The image below is from the latest High Resolution NAM model (courtesy TropicalTidbits) showing a few scattered showers or periods of drizzle possible on Wednesday.

The heat returns Thursday and Friday afternoon with highs in the middle 80s and a chance of widely scattered afternoon or evening thunderstorms.

Moderate Drought Conditions Continue

The forecast for the upcoming weekend is trending unsettled Saturday evening through Sunday night as an upper-level low pressure system (image below) will begin to move towards the Deep South.  This system has the potential to spawn coastal cyclogenesis (low pressure) early next week but the exact track remains uncertain this far out.  Regardless, periods of steady, soaking rain is looking more likely now Saturday night through Sunday night.

Latest Global Forecast Ensemble System (GEFS) showing potential rainfall accumulation through the middle portion of next week:

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s