• Skip to primary navigation
  • Skip to main content
  • Skip to primary sidebar

Weatherboy

Weatherboy Weather News, Maps, RADAR, Satellite, and Forecasts.

  • Local
  • Earth Science News
  • RADAR
  • Current Warnings
  • Satellite
  • Current Maps
  • Forecast Maps
  • Video

Concern about Mid Atlantic Flood Threat

by Weatherboy Team Meteorologist - January 7, 2021

The first flood outlook from the National Weather Service's Mid Atlantic River Forecast Center shows a higher than normal risk in yellow.  Image: NWS
The first flood outlook from the National Weather Service’s Mid Atlantic River Forecast Center shows a higher than normal risk in yellow. Image: NWS





While conditions are dry in the Mid Atlantic today, and should remain true tomorrow for much of the central and northern part of the region, the National Weather Service’s Mid Atlantic River Forecast Center (MARFC) has expressed concern with winter/spring river flooding in the coming weeks.

Yesterday, the State College, Pennsylvania based MARFC issued their first outlook of the new year, describing what they see as potential flood threats for the season. This first outlook of the year is valid for the period from today, January 7, through to January 21. The outlook explores past and forecast weather conditions, soil moisture, snow cover, river ice, and other factors to determine river flooding threats. While the outlook identifies the amount of risk that exists around flooding, it does not address the severity or extent of any future flooding. The MARFC region includes much of New Jersey, all of Delaware, portions of central upstate New York, the eastern two-thirds of Pennsylvania, most of Maryland, eastern West Virginia, and the northern two-thirds of Virginia.




According to the new outlook, the river  flood potential is above average across southern and eastern portions of the MARFC service area. The balance of the area has a normal risk level.

Driving the risk level for the Mid Atlantic are recent precipitation, snow conditions, stream flow conditions, groundwater metrics, and soil moisture content.  According to the MARFC, precipitation in the entire region has been above to much-above average.  While the snow / no-snow line is close to Route 220 in the Appalachians, I-99, I-80 in Pennsylvania, and northeast to near I-84 in New York, snow and its water equivalent values are above normal for this time of year.  Outside of Pennsylvania and New York, snow conditions are close to normal.  USGS data shows streamflow conditions are above to much-above median levels for this time of year. Soils remain extremely moist across southern and eastern portions of the MARFC service area.  Ground water is also average to above average in much of the region.

Comments

comments

Primary Sidebar

Sponsored Ad

Search

Latest News

  • United States Prepares for Tsunami Threats
  • Sunshine State to Get Plenty of Rain
  • Skies Turn Black as Billions of Locusts Take Flight; Emergency Declared
  • NASA Selects SpaceX to Bring Americans to the Moon
  • Toxic Plume from Caribbean Volcano Wraps Around Earth; Arrives Over India
  • USGS Raises Volcano Alert Level to WARNING; Color Code RED
  • Advisory for Ash Plume from Volcano Issued; USGS alert at “ORANGE”
  • Winter Storm Warnings Issued for April Snow
About | Careers | Contact | Contests
Terms | Privacy | Ad Choices
Weatherboy is a (R) Registered Trademark of isarithm LLC, All Rights Reserved.
All content herein is Copyright by Isarithm LLC 1997-2020