S. with a surface low pressure center across the eastern Great Lakes.
Every event with a place to put it. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS LWX wrote it up.
A upper level trough was moving eastward and across most of the eastern U.S. with a surface low pressure center across the eastern Great Lakes. A cold front moved through the Mid Atlantic with dew points in the low 60s ahead of frontal passage. A strong low level jet on the eastern side of trough aided in strong winds reaching the surface. Flood and flash flood also occurred along or just ahead of the frontal passage.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Baltimore/Washington wrote its last area forecast discussion before the first event at Jan 31, 12:35 AM EST, 22 minutes earlier.
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</html>The Sterling radar (KLWX), 59 km away, was scanning. The volume nearest the first event began at 05:56 UTC.
5 thunderstorm wind. Local standard time, as filed.
There was a tree down near Marshalls Corner Road and Pomfret Road.
There was a tree down near the intersection of Penns Hill Road and Marcus Lane.
There was a tree down near Mechanicsville Road and Asher Road.
There was a tree down near 2960 Marshall Hall Road.
There was a tree down near Three Notch Road and N. Sandgates Road.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Maryland in 2013Every state in 2013This day in weather historyWarnings in Maryland, January 2013
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-10-01. Each event’s entry at NCEI: 429164, 429169, 429170, 429171, 429158.