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Helping Business Weather the Storm

National Weather Summary for Friday, November 2, 2018

by David Moran, on Nov 2, 2018 10:48:40 AM

Thunderstorms are forecast to develop along the East Coast on Friday ahead of an approaching cold front. Some of this activity may produce excessive rainfall across the Northeast. Snow is expected across portions of the Rockies through Sunday as an area of low pressure moves across the region. As this area of low pressure moves eastward, snow is forecast across areas of the Northern Plains through Saturday. Elevated winds and seas will continue for portions of the Gulf of Mexico through Friday night.

  • Thunderstorms for the East Coast on Friday
  • Excessive Rainfall Friday for the Northeast
  • Snow for the Rockies through Sunday
  • Potential for Snow through Saturday across the Northern Plains
  • Elevated Winds and Seas for the Gulf of Mexico Friday
  • Thunderstorms Saturday for Massachusetts, Rhode Island, and Connecticut
  • Excessive Rainfall for Maine on Saturday

US Hazards Friday, November 2, 2018
US Hazards

Thunderstorms for the East Coast on Friday
Shower and thunderstorm activity is continuing ahead of an approaching cold front. Ample moisture is present across the region; combined with daytime heating, ongoing activity could intensify. A second line of thunderstorms may develop behind the front later this afternoon and evening. Gusty winds will be the primary hazards with the strongest storms, but an isolated tornado or two cannot be ruled out.

Major Cities in Region: Savannah, GA, Myrtle Beach, SC, Norfolk, VA, New York, NY, Portland, ME

Thunderstorm Risk for Friday, November 2, 2018
Thunderstorm Risk for Friday

Excessive Rainfall Friday for the Northeast
In addition to the thunderstorms described above, there will be a risk for excessive rainfall across the Northeast. Rainfall amounts will range 2-4 inches with locally higher amounts in excess of 5 inches. This will allow for a risk for flooding and flash flooding, particularly in areas that received rainfall yesterday.

Major Cities in Region: Philadelphia, PA, New York, NY, Manchester, NH

Rainfall Accumulation for Friday, November 2, 2018
Rainfall Accumulation for Friday

Snow for the Rockies through Sunday
An area of low pressure is expected to move over the region later today, bringing the potential for snow. The highest totals will be confined to the higher elevations with 4-8 inches and locally higher amounts in excess of 12 inches forecast through Sunday. In the valleys, snowfall accumulations will range 1-2 inches. A light glaze of ice may also develop across portions of Montana and Wyoming, resulting in hazardous travel conditions. 

Major Cities in Region: Cody, WY, Grand Junction, CO, Steamboat Springs, CO

Snow and Ice Accumulation for November 2-4, 2018
Snowfall Accumulation through Sunday

Potential for Snow through Saturday across the Northern Plains
An area of low pressure is forecast to track eastward Friday evening into Saturday afternoon. This system is expected to produce rain and snow initially, but will transition to all snow during the overnight hours. Moderate snowfall is likely, but could be heavy at times. Widespread snowfall amounts of 2-4 inches with locally higher amounts in excess of 5 inches are expected. Wind gusts in excess of 25 mph could lead to areas of blowing snow. Reduced visibilities are likely.

Major Cities in Region: Minot, ND, Bismarck, ND

Snow and Ice Accumulation for November 2-3, 2018
Snow and Ice Accumulation through Saturday

Elevated Winds and Seas for the Gulf of Mexico Friday
Elevated winds and seas will continue across the Gulf of Mexico through Friday evening as a cold front continues to move eastward. Winds will range 18-23 knots with gusts in excess of 30 knots, Seas will range 6-8 feet in the western areas and 7-9 feet further east. In addition, thunderstorms may develop along and ahead of the front. 

Winds and Wave Heights 7pm CDT Friday, November 2, 2018
Winds and Wave Heights 7pm CDT Friday

Thunderstorms Saturday for Massachusetts, Rhode Island, and Connecticut
As the slow moving cold front described above continues to move eastward, scattered shower and thunderstorm activity is expected along and just ahead of it. These thunderstorms will have the potential to produce severe winds and an isolated tornado or two. This line of storms should move offshore by the late morning to early afternoon, with skies clearing during the late afternoon and early evening. 

Major Cities in Region: Providence, RI, Boston, MA

SPC Convective Outlook for Saturday, November 3, 2018
SPC Convective Outlook for Saturday

Excessive Rainfall for Maine on Saturday
Shower and thunderstorm activity may linger across portions of Maine on Saturday. Rainfall accumulations will range 1-2 inches. With the rainfall from today, there will be a risk for flooding and flash flooding. 

Major Cities in Region: Portland, ME, Augusta, ME, Bangor, ME

Rainfall Accumulation for Saturday, November 3, 2018
Rainfall Accumulation for Saturday

A Look Ahead
Snow will continue across the Rockies on Monday as an upper level system continues to move eastward. Thunderstorms are forecast across portions of the Plains and Mississippi Valley as an area of low pressure and cold front move eastward. This activity will extend from the Great Lakes into the Tennessee Valley on Tuesday. By Wednesday, the area of low pressure will move into the Great Lakes, bringing snow to the Great Lakes and heavy rainfall to the Northeast. Light to moderate snow may continue across the Great Lakes and Northeast on Thursday.

Topics:Nowcast/Forecast

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