National Weather Summary for Monday, October 22, 2018
by David Moran, on Oct 22, 2018 10:54:58 AM
Elevated winds and seas will continue across the western Gulf of Mexico through early Wednesday morning in association with an area of low pressure.
- Elevated Winds and Seas through Early Wednesday Morning across the Western Gulf of Mexico
- Thunderstorms across Arizona on Tuesday
- Snow Tuesday and Wednesday across Northern Maine
Elevated Winds and Seas through Early Wednesday Morning across the Western Gulf of Mexico
A persistent area of low pressure and warm front have set up over the Gulf of Mexico southeast of Texas and continue to bring elevated winds and seas to the western Gulf. Seas will range 6-9 feet along the southeast Texas coast. Winds 20-25 knots with gusts in excess of 30 knots are expected. Conditions are forecast to relax Tuesday morning before intensifying again Tuesday evening as the front begins to move eastward. Seas will increase to 7-10 feet with the highest seas in the deep waters. Further east along the Louisiana coast, seas will range 4-7 feet.
Winds and Wave Heights 7pm Monday
Thunderstorms across Arizona on Tuesday
An upper level trough will track across the Four Corners region on Tuesday. At the surface, strong daytime heating combined with plentiful low level moisture will allow instability to build. With lift provided by the trough, scattered showers and thunderstorms are expected to develop during the afternoon. A few storms could become strong to severe; damaging winds and hail will be the primary hazards with the stronger storms. These storms will track northeastward throughout the afternoon and evening toward northern New Mexico and diminish after sunset.
Major Cities in Region: Tucson, AZ
SPC Convective Outlook for Tuesday
Snow Tuesday and Wednesday across Northern Maine
An area of low pressure will move southeastward into the Northeast on Tuesday. As this occurs, the system will intensify during the overnight hours and begin to track northward. While this low strengthens, cold air on the northwestern periphery of the low will be brought southward into northern Maine and the Canadian Maritimes. With ample moisture and cold air in place, any precipitation that develops will be in the form of snow. Snow will begin from south to north starting late Tuesday and continuing into Wednesday evening. Snowfall amounts will range 3-6 inches across the lower elevations with amounts of 6-12 inches across the higher elevations.
Major Cities in Region: Presque Isle, ME
Snow Accumulation for Tuesday and Wednesday
A Look Ahead
Showers and thunderstorms may develop along the Louisiana and Texas coasts on Thursday as the remnants of Hurricane Willa continue to move eastward. This activity will move further east across the Southeast on Friday. By Saturday, showers and thunderstorms will extend from the Upper Midwest into the Ohio Valley as an area of low pressure moves eastward. A wintry mix may develop across portions of New England on Sunday.