NATIONAL WEATHER SUMMARY

 

NOVEMBER 2016

 

1-5: Stormy weather impacted states stretching from the southern Plains to the Midwest on Wednesday, while wet weather continued across the Northwest. A cold frontal boundary extended southwestward from Quebec to the southern high Plains. Showers and thunderstorms fired up along and near this frontal boundary across the southern Rockies, the southern Plains, the central Plains, the middle Mississippi Valley, the Midwest and the Great Lakes. Temperatures remained 20 to 30 degrees above normal in the central Plains, the Tennessee Valley and the Midwest. St. Louis, Mo., recorded a midday high of 80 degrees. Cincinnati, Ohio, recorded a midday high of 72 degrees. Meanwhile, a cold frontal boundary approached the Northwest. Moderate rain and high elevation snow developed ahead of this frontal boundary over northwest Oregon and Washington. A ridge of high pressure influenced a dry weather pattern across most of the Intermountain West, the Great Basin and the Southwest on Wednesday. Las Vegas, Nev., recorded a midday high of 70 degrees. Los Angeles, Calif., also recorded a midday high of 70 degrees.

 

A cluster of storms impacted the Four Corners on Friday, while temperatures spiked above normal across parts of the Plains and the Mississippi Valley. An area of low pressure rotated over the Four Corners. This system drew moisture from the Gulf of Mexico, which lead to the development of rain and thunderstorms across the region. Just to the east, a cold frontal boundary extended southwestward from the western Atlantic to the western Gulf Coast. Showers and isolated storms fired up along and near this frontal boundary across parts of the southern Mid-Atlantic, the Southeast and the Gulf Coast. A light mixture of rain and snow lingered over portions of northern Maine. Cool and dry air prevailed across the remainder of New England. Boston, Mass., recorded a midday high of 55 degrees. Portland, Maine, recorded a midday high of 51 degrees. High pressure brought above normal temperatures to the northern and central Plains, as well as the middle and upper Mississippi Valley. Some states spiked 10 to 25 degrees above normal on Friday. Minneapolis, Minn., recorded a midday high of 60 degrees. Out west, a cold frontal boundary approached the West Coast. This frontal boundary generated light showers in northwest Washington. Most of the Pacific Northwest, the Great Basin and California experienced dry weather on Friday.

 

6-12: Active weather affected the Plains and the Mississippi Valley on Monday, while scattered showers developed in the Northwest. A wave of low pressure transitioned eastward over the central Plains. This area of low pressure interacted with a warm and humid air mass streaming northward from the Gulf of Mexico. This interaction resulted in rain and thunderstorms across the southern Plains, the central Plains, the western edge of the Midwest and the lower Mississippi Valley. Temperatures spiked 10 to 25 degrees above normal across the upper Midwest on Monday. Milwaukee, Wis., recorded a midday high of 65 degrees. Detroit, Mich., recorded a midday high of 61 degrees. Most states east of the Mississippi River experienced dry weather due to a ridge of high pressure over the northern Mid-Atlantic. Out west, a Pacific cold frontal boundary approached the West Coast. Light, scattered showers developed ahead of this frontal boundary over western Washington. High pressure influenced dry weather across most of the Pacific Northwest, the Intermountain West, the Great Basin and the Southwest. Boise, Idaho, recorded a midday high of 52 degrees. Los Angeles, Calif., recorded a midday high of 71 degrees.

 

A cold frontal boundary brought wet weather to the East Coast on Wednesday, while a weaker frontal boundary moved over the Northwest. A cold frontal boundary extended south southwestward over the coast of New England, the Mid-Atlantic and the Deep South. This frontal boundary generated light to moderate rain from the Northeast to the Gulf Coast. Some precipitation fell in the form of snow across the higher elevations of the northern Appalachians. Cold and dry air trailed this frontal boundary over the upper Midwest and the Northeast. Black River Falls, Wis., recorded a morning low of 21 degrees. Hibbing, Minn., also recorded a morning low of 21 degrees. Meanwhile, an area of low pressure centered over northern Mexico stirred up showers and thunderstorms across the southern Plains and the western Gulf Coast. Out west, a weak cold frontal boundary produced light to moderate rain in western Washington. Most areas from the Southwest to the northern Plains experienced dry weather due to a ridge of high pressure over the region. Los Angeles, Calif., recorded a midday high of 93 degrees.

 

Wintry weather affected the Northeast on Friday, while showers moved onshore over the West Coast.  A cold frontal boundary extended southwestward across southeast Canada, the coast of New England, the Mid-Atlantic, the Deep South and the southern Plains. A light mixture of rain and snow developed along and near this frontal boundary across the Northeast. Gusty winds and cold air surged over the northern Plains, the upper Midwest, the northern Mid-Atlantic and New England in the wake of the cold frontal passage. Mount Washington, N.H., recorded a morning low of 12 degrees with a wind chill factor of -17 degrees. Tioga Municipal Airport, N.D., recorded a morning low of 17 degrees. Meanwhile, scattered showers and thunderstorms fired up from the Lower Rio Grande Valley to the central Gulf Coast. Out west, a cold frontal boundary approached the coasts of Washington and Oregon. Light to moderate rain developed ahead of this frontal boundary over parts of western Washington and western Oregon. Most states stretching from the Southwest to the Intermountain West experienced dry weather on Friday. Los Angeles, Calif., recorded a midday high of 86 degrees. Denver, Colo., recorded a midday high of 58 degrees.

 

13-19: A low pressure system ushered rain over the Mid-Atlantic on Monday, while a cold frontal boundary moved across the Northwest. A low pressure system strengthened as it moved north northeastward over the southern Mid-Atlantic. This system ushered light to moderate rain and isolated thunderstorms across the Mid-Atlantic and the central Appalachians on Monday. This frontal boundary continued to produce showers and thunderstorms in Florida and along the southern tip of Texas. High pressure kept conditions fairly dry across most of the Plains and the Midwest. Temperatures rose above normal across the central Plains. Omaha, Neb., recorded a midday high of 60 degrees. Meanwhile, a cold frontal boundary extended southwestward from the upper Intermountain West to the coast of Oregon. This system brought periods of moderate rain and high elevation snow to the upper Intermountain West, the Pacific Northwest and the northern edge of California.

 

Wet weather affected the Northeast on Wednesday, while a trough of low pressure brought a pattern change to the West Coast.  A low pressure system shifted north northeastward across the coast of New England. This system ushered moderate to locally heavy rain over New England on Wednesday. High pressure brought above normal temperatures to states stretching from the central Plains to the upper Midwest. Des Moines, Iowa, recorded a midday high of 63 degrees. Meanwhile, a cold frontal boundary extended southwestward from the northern Plains to the Southwest. This frontal boundary generated light to moderate showers and high elevation snow in the northern Plains, the Intermountain West, the northern Great Basin and northern California. Cooke City, Mont., reported a midday high of 3.0 inches of snow. A trough of low pressure moved onshore over the West Coast. Rain and isolated thunderstorms formed along the coasts of Washington, Oregon and northern California. Crescent City, Calif., reported a midday total of 0.54 of an inch of rain. Additionally, gusty winds affected a large portion of the Southwest. Lancaster, Calif., recorded wind gusts of 48 mph.

 

A low pressure system impacted the central third of the country on Friday, while a wet weather pattern developed along the West Coast. A strong area of low pressure moved northeastward from the central Plains to the upper Midwest. This system ushered moderate to heavy snow across the northern Plains and the upper Midwest. Blizzard warnings remained in effect for eastern South Dakota and many counties across Minnesota. A cold frontal boundary associated with this system extended south southwestward from the upper Mississippi Valley to the southern Plains. Rain and embedded thunderstorms developed along and ahead of this frontal boundary from the western Great Lakes to the western Gulf Coast. High pressure kept most states dry from the Southeast to New England. Boston, Mass., recorded a midday high of 58 degrees. Atlanta, Ga., recorded a midday high of 74 degrees. Meanwhile, a cold frontal boundary approached the West Coast. Light to moderate rain and high elevation snow developed across parts of Washington, western Oregon and northwest California. A ridge of high pressure over the eastern Pacific and Baja California influenced dry conditions from southern California to the Four Corners. Los Angeles, Calif., recorded a midday high of 75 degrees. Albuquerque, N.M., recorded a midday high of 45 degrees.

 

A low pressure system impacted the Midwest on Wednesday, while a Pacific system shifted over the Northwest. An area of low pressure moved northeastward across the upper Mississippi Valley. This system ushered a mixture of rain, freezing rain and snow over the upper Midwest and the interior portion of the northern Mid-Atlantic. Winter weather advisories were issued for northeast Minnesota, northern Wisconsin, northwest Michigan, northern Pennsylvania and a large part of New York. Just to the east, scattered snow showers persisted in Upstate New York and northern New England. High pressure kept most states dry along the East Coast on Wednesday. Boston, Mass., recorded a midday high of 42 degrees. Atlanta, Ga., recorded a midday high of 62 degrees. Meanwhile, a cold frontal boundary shifted over the interior Pacific Northwest, the Great Basin and northern California. Light to moderate rain and high elevation snow developed along and ahead of the frontal boundary across the Great Basin and the Intermountain West. An onshore flow from the Pacific also produced showers and high elevation snow over northern California, western Oregon and western Washington.

 

A wintry mix affected areas from the Midwest to the Northeast on Saturday, while rain and snow developed along the West Coast. An area of low pressure drifted slowly over the Great Lakes. This system brought a mixture of rain and snow to the upper Midwest, the northern Mid-Atlantic and New England. Winter weather advisories were issued for northern Maine on Saturday. A cold frontal boundary associated with this system extended southwestward over the middle Mississippi Valley and the southern Plains. Rain and thunderstorms developed along and near this frontal boundary across southeast New Mexico and Texas. Out west, a series of disturbances generated moderate to heavy rain and high elevation snow across the Pacific Northwest, northern California and the northern Rockies. Most of the Great Basin and the Southwest stayed dry on Sunday. Los Angeles, Calif., recorded a midday high of 73 degrees. Las Vegas, Nev., recorded a midday high of 61 degrees.

 

27-30: Active weather impacted the central third of the country on Monday, while conditions dried out over the Southwest. A powerful low pressure system inched over the northern Plains. This system ushered moderate to heavy rain and snow across the northern Plains and the western tier of the upper Midwest. Winter storm warnings were issued for eastern Montana, northeast Wyoming, western South Dakota and much of North Dakota. A cold frontal boundary associated with this system extended south southwestward from the upper Midwest to the southern Plains. Heavy rain and strong thunderstorms fired up along and ahead of the frontal boundary across the Midwest and the Deep South. Boston, Mass., recorded a midday high of 43 degrees. Jacksonville, Fla., recorded a midday high of 73 degrees.

Meanwhile, another frontal system shifted over the Intermountain West and the Great Basin. This system produced light to moderate rain and mountain snow across parts of the Four Corners, the northern Rockies and the Great Basin.


Jim G. Munley, jr.
http://www.jimmunleywx.com



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