Tuesday, November 18, 2025
We need rain, and we have a fast-moving clipper-like storm that will bring a moderate burst. This morning, it was plotted near Kansas City, MO, and tomorrow morning, it will be moving off the coast from Ocean City, MD. That is a track of over 1000 miles in 24 hours—definitely a quick mover.
The upper-level short wave does resemble a clipper, which is often a winter storm that tracks across Canada and can bring a quick burst of snow. This is farther south and means rain for us, but some snow in the Great Lakes may transfer to the mountains of Pennsylvania tonight.
This is important because it may signal which models are best at handling winter events. We will compare 4 models for rain totals below.
Another system will race in on Friday, then finally depart with some sun and a warm-up later in the weekend.
Yesterday: Low 41F; High 65F
Precipitation: Trace
Sunrise at 6:54 AM
Sunset at 4:50 PM
Normal Low in Baltimore: 36ºF
Record 20ºF in 1959
Normal High in Baltimore: 57ºF
Record 78ºF 1928; 1938
Rainfall Deficit at BWI
As clouds increase, temperatures will hold in the 40s for most of us. The 30s will hold in the mountains.
The National Blend of Models suggests the rain arrives in the mountains close to noon and could expand to near Hagerstown in the afternoon.
Light Rain will be scattered across metro areas as heavy rain shows up in the mountains.
Heaviest rain.
The burst of heavy rain will be moving east of the cities. Roads will be wet.
The storm will be off the coast. Clouds linger, and some showers might still fall over Delmarva.
Comparing 4 models, we will review after the event.
From highest to lowest…..
Friday to Sunday
Rain will develop during the day Friday into Saturday, followed by clearing and a little bump in slightly warmer temps on Sunday.
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This was issued October 9, as expected: A weak and short-lived event to start winter may play a different role this winter
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