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NATIONAL SORM SUMMARY

 

OCTOBER 2016

 

1-8: Active weather impacted the Intermountain West and the Plains on Monday, while stormy weather continued in the Southeast. A low pressure area transitioned across the upper Intermountain West and the northern high Plains. This system ushered moderate to heavy rain and high elevation snow across the Wasatch, the central Rockies, the northern Rockies and the northern high Plains. Winter storm warnings were issued in central Montana. Winter weather advisories were also issued in southwest Montana, eastern Idaho, northern Utah and parts of Wyoming. Worland, Wyo., reported a midday total of 0.87 of an inch of rain. Driggs, Idaho, reported a midday total of 0.59 of an inch of rain. A cold frontal boundary associated with this system generated rain and thunderstorms across the northern Plains and the central high Plains. Severe thunderstorm watches were issued in southeast Montana, northeast Wyoming, western South Dakota and western Nebraska. Torrington, Wyo., reported 1.00 inch sized hail. Back east, a low pressure area transitioned eastward over the northern Mid-Atlantic and the western Atlantic. This system kept showery weather in the picture for parts of the Northeast. A cold frontal boundary associated with system initiated showers and thunderstorms across the southern Mid-Atlantic and the Southeast. Cocoa Beach, Fla., reported a midday total of 2.08 inches of rain. Daytona Beach, Fla., reported a midday total of 1.94 inches of rain.

 

A snowy weather pattern impacted the northern high Plains on Wednesday, while moisture associated with Hurricane Matthew drifted over the Southeast.  A low pressure system lifted northeastward across the northern Plains and south central Canada. Cold air trailed this system, which supported a mixture of rain and snow in the upper Intermountain West and the northern high Plains. Winter weather advisories were issued for northwest Colorado. Flood warnings were also issued in northeast Montana. Zortman, Mont., reported a midday total of 6.5 inches of snow. Hays, Mont., reported a midday total of 6.0 inches of snow. Temperatures stayed 5 to 15 degrees below normal over many states west of the Plains. A cold frontal boundary associated with this system extended south southwestward from the western Great Lakes to the southern Plains. Showers and thunderstorms fired up along and ahead of this frontal boundary from the central Plains to the upper Midwest. Muskogee, Okla., reported a midday total of 2.29 inches of rain. Fayetteville, Ark., reported a midday total of 1.21 inches of rain.  Meanwhile, a low pressure system moved across the Pacific Northwest. This system brought scattered showers to parts of Oregon and Washington. Newport Airport, Ore., reported a midday total of 0.59 of an inch of rain. Back east, a frontal boundary stalled out over the western Atlantic and the Florida Peninsula. Moisture associated with Hurricane Matthew interacted with this frontal boundary, which lead to the development of showers and thunderstorms across the Florida Peninsula and the southern Mid-Atlantic. St. Augustine, Fla., reported a midday total of 1.36 inches of rain. Hurricane warnings and tropical storm warnings were issued along eastern Florida in anticipation of Hurricane Matthew.

 

Hurricane Matthew slammed into the Southeast on Friday, while a mixture of rain and mountain snow affected the Northwest. Hurricane Matthew moved northward along the east coast of Florida. This system packed strong winds, torrential rain and life-threatening storm surge. Hurricane warnings were issued from the northeast coast of Florida to the coast of North Carolina. Vero Beach, Fla., recorded wind gusts of 74 mph. Melbourne, Fla., recorded wind gusts of 70 mph. Flood warnings were also issued in northeast Florida and southeast Georgia. Jacksonville, Fla., reported a midday total of 4.06 inches of rain. Ft. Stewart, Ga., reported a midday total of 1.55 inches of rain. Meanwhile, a cold frontal boundary produced scattered showers and thunderstorms in the Midwest, the middle Mississippi Valley and the southern Plains. Flood warnings were issued for southeast Kansas and northeast Oklahoma. Muskogee, Okla., reported a midday total of 1.43 inches of rain. A series of disturbances transitions across the Pacific Northwest and the upper Intermountain West. As a result, rain and high elevation snow developed from Washington to northwest Montana.

 

North Carolina Highway Patrol troopers are working to help 25 vehicles after they became stranded on Interstate 95 Saturday. The cars got caught on a stretch of road between two parts of the flooded highway. State officials say emergency responders have conducted at least 42 water rescues from cars and homes in Fayetteville, according to The News & Observer. Multiple water rescues took place in Johnston County Saturday, according to the National Weather Service. People were reportedly trapped in their homes and on top of vehicles. Interstate 85 in Durham County was closed because of a tree in the road, reports the newspaper. As the hurricane inundates an already saturated state, authorities continue to urge residents to remain vigilant and heed warnings. "I cannot stress how serious an issue this hurricane could cause to North Carolina, not only in damaging structures but also risking human life,” McRory said at a press conference Saturday morning. He added that authorities are concerned that because the storm was downgraded to a Category 1 hurricane, and residents would "let down their guard."  Hurricane Matthew "did downgrade in the wind, but it upgraded into the volume of water," McCrory said. "And water can kill, along with continued high winds. ... We still have serious concerns on the beaches. But most of our concerns right now are inland, where we're going to have surges on the major rivers coming into North Carolina, which could cause some serious, serious damage."

McRory noted that "it's storms like these that have caused the most damage and loss of life."This (storm) has the potential for North Carolina to see the worst flooding since Hurricane Floyd," said McRory, adding that they are most concerned with the Fayetteville area, which is "already inundated" from last week's heavy rain and flooding. According to North Carolina Public Safety, almost 370,000 remained without power Saturday. Several rivers were nearing or surpassing flood stage levels, including Cape Fear River near Burgaw, Tar River at Greenville and Cashie River near Windsor. These rivers were expected to crest in the coming days.  According to North Carolina Public Works, 54 shelters are open, with more than 777 sheltered. The North Carolina National Guard deployed 180 troops and 68 high water vehicles throughout the eastern part of the state, according to the North Carolina governor's office. According to a statement by Cumberland County Emergency Managment, trees are down on numerous roads and pedestrians are being asked to avoid Ray Avenue at Rowan Street as Cross Creek begins to flood. President Barack Obama declared a state of emergency Friday ahead of Hurricane Matthew. The declaration puts the Homeland Security Department and the Federal Emergency Management Agency in charge of disaster relief efforts in the state. 

 

9-15: A cold frontal boundary extended west southwestward from the northern Plains to the Pacific Northwest. This frontal system collided with a warm and humid air mass, which initiated showers and thunderstorms over parts of the southern Plains, the central Plains and the Mississippi Valley. Manhattan, Kan., reported a midday total of 0.49 of an inch of rain. Cold air trailed this frontal system over the Northwest, the upper Intermountain West and the northern high Plains. Cold air supported high elevation snow showers in the northern Rockies and the northern high Plains. Winter storm warnings were issued for northwest Montana. Bynum, Mont., reported a midday total of 7.3 inches of snow. Blacktail, Mont., reported a midday total of 10.0 inches of snow.

 

A cold frontal boundary brought stormy conditions to the Midwest and the Plains on Wednesday, while showers began to move onshore over the Northwest. A cold frontal boundary stretched southwestward from the Great Lakes to the southern Plains. This frontal boundary collided with a relatively warm air mass, which lead to the development of showers and thunderstorms across the upper Midwest, the upper Mississippi Valley, the middle Mississippi Valley, the central Plains and the southern Plains. Coffeyville, Kan., reported a midday total of 1.63 inches of rain. Green Bay, Wis., reported a midday total of 0.68 of an inch of rain.

 

16-22: A stormy weather pattern impacted the northern tier of the country on Monday, while warm and dry weather persisted from the Southwest to the Midwest. A cold frontal boundary extended southwestward from the Great Lakes to the central Rockies. Rain and embedded thunderstorms developed near this frontal boundary over parts of the upper Midwest, the northern Plains and the upper Intermountain West. Hayward, Wis., reported a midday total of 1.43 inches of rain. Munising, Mich., reported a midday total of 1.13 inches of rain. Gusty winds and high elevation snow also affected the central and northern Rockies. Bondurant, Wyo. reported a midday total of 6.0 inches of snow. Lava Hot Springs, Idaho, reported a midday total of 7.6 inches of snow. High wind warnings were issued in Wyoming, eastern Colorado and northeast New Mexico. Monarch Pass, Colo., recorded a wind gust of 79 mph. Just to the west, an onshore flow from the Pacific kept light to moderate rain in the picture for western Washington, western Oregon and parts of California. Arcata, Calif., reported a midday total of 0.82 of an inch of rain. Corvallis, Ore., reported a midday total of 0.69 of an inch of rain.

A cold frontal boundary generated strong thunderstorms in the central Plains and the Midwest on Wednesday, while a Pacific system approached the Northwest. A cold frontal boundary extended southwestward from the Northeast to the southern Plains. Rain and thunderstorms fired up along and near this frontal boundary over the Midwest, the middle Mississippi Valley and the central Plains. A severe thunderstorm warning was issued in south central Missouri. Severe thunderstorm watches were also issued across most of southern Missouri and southwest Illinois. Joplin, Mo., reported a midday total of 0.96 of an inch of rain. Kaiser, Mo., reported a midday total of 0.37 of an inch of rain. Another frontal boundary extended west southwestward from the Great Lakes to the Intermountain West. Showers and stray thunderstorms developed from the northern Rockies to the northern high Plains. In addition, high elevation snow affected the Rockies. Ainsworth, Neb., reported a midday total of 0.28 of an inch of rain.

 

An area of low pressure brought active weather to the Midwest and the Northeast on Friday, while a frontal system shifted over the Northwest. A low pressure system merged with a tropical wave on Friday. This broad area of low pressure ushered moderate to heavy rain and embedded thunderstorms over the Midwest, the interior Mid-Atlantic and New England. Flood advisories were issued in northeast Pennsylvania and south central New York. Syracuse, N.Y., reported a midday total of 2.54 inches of rain. Bradford, Pa., reported a midday total of 2.11 inches of rain. Meanwhile, a cold frontal boundary stretched west southwestward from the northern high Plains to the Pacific Northwest. Light showers and high elevation snow developed along and near this frontal boundary across the upper Intermountain West and the Pacific Northwest. An onshore flow from the Pacific fueled more moderate rain in western Washington and extreme northwest Oregon.

23-31: A wave of low pressure impacted the Midwest on Wednesday, while a Pacific system moved onshore over the Northwest. An area of low pressure shifted eastward across the upper Mississippi Valley. This system ushered a mixture of rain and snow over the northern Plains and the Midwest. Flood warnings were issued for parts of Iowa and Wisconsin. Madison, Wis., reported a midday total of 1.87 inches of rain. Decorah, Iowa, reported a midday total of 1.64 inches of rain. A cold frontal boundary associated with this system extended southwestward. Showers and isolated thunderstorms fired up along and ahead of this frontal boundary from the Midwest to the southern Plains. Flood advisories were issued in eastern Oklahoma. Cushing, Okla., reported a midday total of 0.97 of an inch of rain. Just to the east, a light mixture of rain and snow continued to fall across northern New England. Meanwhile, a cold frontal boundary began to move onshore over the Northwest. Light to moderate rain affected northwest California, western Oregon, Washington, northern Idaho and western Montana. Brookings, Ore., reported a midday total of 1.96 inches of rain. Shelton, Wash., reported a midday total of 0.93 of an inch of rain.

A low pressure system brought rain and snow to the Northeast on Thursday, while a trough of low pressure generated wet weather along the West Coast. An area of low pressure moved east northeastward across the Midwest and the lower Great Lakes. This system ushered a mixture of rain, freezing rain and high elevation snow over the eastern edge of the Midwest, the northern Mid-Atlantic and southern New England. Winter weather advisories were issued for eastern New York and northeast Pennsylvania. Freezing rain advisories were also issued in northeast Pennsylvania and northwest New Jersey. Wantage, N.J., reported a midday total of 0.10 of an inch of ice. Durham, N.Y., reported a midday total of 1.50 inches of snow. A cold frontal boundary associated with this system generated scattered showers and isolated thunderstorms from the Ohio Valley to the Gulf Coast. To the south, a cluster of thunderstorms battered the southern tip of Florida. Miami, Fla., reported a midday total of 1.02 inches of rain. Key West, Fla., reported a midday total of 0.53 of an inch of rain. Meanwhile, a trough of low pressure brought rain and high elevation snow to the Pacific Northwest and the northern half of California. Arcata, Calif., reported a midday total of 2.12 inches of rain. Brookings, Ore., reported a midday total of 1.82 inches of rain.

 

A low pressure system brought periods of heavy rain to California on Friday, while a mixture of rain and snow affected New England. An area of low pressure shifted northeastward across central and northern California. A plume of moisture accompanied this system, which lead to moderate to heavy rain across much of the state. Flood advisories were issued in north central California. Modesto, Calif., reported a midday total of 1.59 inches of rain. Salinas, Calif., reported a midday total of 1.32 inches of rain. Light to moderate showers also drifted eastward over the Great Basin, the Intermountain West and the northern high Plains. Flash flood watches were issued across northern Nevada.  Meanwhile, a low pressure area moved eastward over the upper Mississippi Valley. This system generated a cluster of light to moderate showers from northern Minnesota to northern Michigan. Further to the east, a robust area of low pressure produced a mixture of rain and snow in portions of New York and New England. Winter weather advisories were issued for western Maine. Rangeley, Maine, reported a midday total of 2.0 inches of snow. Portland, Maine, reported a midday total of 2.29 inches of rain. Scattered storms developed along parts of the western Gulf Coast and southern Florida.

 

A low pressure system ushered rain and snow across the northern tier of the country on Tuesday, while a hot weather pattern continued across the southern Plains. An area of low pressure moved east northeastward across the upper Intermountain West and the northern high Plains. This system generated gusty winds and a mixture of rain and snow in the northern Rockies and the northern high Plains. Light to moderate rain also developed along northern North Dakota, northern Minnesota, northwest Michigan and parts of Wisconsin. Kalispell, Mont., reported a midday total of 0.79 of an inch of rain. Crosby, N.D., reported a midday total of 0.73 of an inch of rain. High wind warnings were issued in parts of Montana, Wyoming, northwest South Dakota and southwest North Dakota. Evanston, Wyo., recorded a wind gust of 78 mph. Spearfish, S.D., recorded a wind gust of 63 mph. Just to the west, an onshore flow from the Pacific brought periods of moderate rain and mountain snow to northern California, western Oregon and western Washington. Winter weather advisories were issued in the northern Sierra Nevada. Soda Springs, Calif., reported a midday total of 11.0 inches of snow. Olympia, Wash., reported a midday total of 0.67 of an inch of rain. Meanwhile, scattered storms developed along parts of southeast Texas and southern Florida.

 

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



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