Rain associated with an approaching cold front combined with near record high temperatures and continued snow melt to result in river flooding along the Mahwah River near Suffern, New York. After an average of 5-9 inches of snow the week before, rainfall totals across the region ranged from 1-3 inches.
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The episode as NWS OKX wrote it up.
Rain associated with an approaching cold front combined with near record high temperatures and continued snow melt to result in river flooding along the Mahwah River near Suffern, New York. After an average of 5-9 inches of snow the week before, rainfall totals across the region ranged from 1-3 inches.
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 New York, NY wrote its last area forecast discussion before the first event at Jan 12, 3:52 PM EST, 1 hour 8 minutes earlier.
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</html>Special Weather Statement National Weather Service New York NY 1201 PM EST Fri Jan 12 2018 CTZ005>012-NJZ002-004-006-103>108-NYZ067>075-078>081-176>179- 122300- Northern Fairfield-Northern New Haven-Northern Middlesex- Northern New London-Southern Fairfield-Southern New Haven- Southern Middlesex-Southern New London-Western Passaic- Eastern Passaic-Hudson-Western Bergen-Eastern Bergen- Western Essex-Eastern Essex-Western Union-Eastern Union-Orange- Putnam-Rockland-Northern Westchester-Southern Westchester- New York (Manhattan)-Bronx-Richmond (Staten Island)- Kings (Brooklyn)-Northwestern Suffolk-Northeastern Suffolk- Southwestern Suffolk-Southeastern Suffolk-Northern Queens- Northern Nassau-Southern Queens-Southern Nassau- 1201 PM EST Fri Jan 12 2018 ...Locally Dense Fog into the Afternoon Rush Hour... Areas of fog with a visibility of mostly one half to one mile will continue across the entire Tri-state area this afternoon. There will however be localized areas where visibility will be reduced to a quarter mile or less by the fog. The visibility may vary significantly in just a short distance. Motorists need to be alert for sudden changes in visibility. Allow extra space between you and the vehicle ahead of you and only use low beam headlights. Maloit
The national radar mosaic for the moment the first event began.
1 flood. Local standard time, as filed.
The Mahwah River near Suffern New York exceeded its flood stage of 4.0 feet at 5:00pm EST on January 12th, crested at a height of 4.42 feet at 7:00pm EST, and fell back below flood stage at 9:30pm EST.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in New York in 2018Every state in 2018This day in weather historyWarnings in New York, January 2018
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 2026-09-30. Each event’s entry at NCEI: 736581.