An initial shortwave ahead of a trough over the central CONUS crossed the region on December 16th. Snow fell initially, with accumulations of 1 to 3 inches reported by the morning hours.
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 PBZ wrote it up.
An initial shortwave ahead of a trough over the central CONUS crossed the region on December 16th. Snow fell initially, with accumulations of 1 to 3 inches reported by the morning hours. However, a mix with freezing rain occurred by the evening hours as a warm layer developed aloft. Garrett County saw a longer period of freezing rain that areas to the west due to its position near a stationary frontal boundary and continued dynamic cooling from southeast upslope flow. Icing continuing through the night into the morning of the 17th, eventually leading to significant ice accretion.
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 Pittsburgh, PA wrote its last area forecast discussion before the first event at Dec 16, 1:25 AM EST, 2 hours 35 minutes earlier.
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</html>1 ice storm. Local standard time, as filed.
Around one half inch of ice accretion was measured across the county in total. Garrett County 911 reported 30-40 separate incidents involving trees and/or power lines being downed due to severe icing. A few spotters reported that the main roads in the county were in good shape overall due to pretreatment, although some slick spots remained on secondary routes.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Maryland in 2019Every state in 2019This day in weather historyWarnings in Maryland, December 2019
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: 869755.