Sunday, November 1st 2009 Weather Outlook

31 10 2009

Sunday’s Weather Outlook; Southeast System, Midwest/Great Lakes System

12:00PM

On Sunday, a system will continue to affect the Sotuehast, as a system pushes through the Midwest and Great Lakes. Rain will be likely in portions of the Southeast, as a weak disturbance moves up a cold frotn which pushed through the area on Saturday. In the Midwest and Great Lakes, rain and snow will be possible, as a system moving through Southern Canada affects the area. Below are the thunderstorm and snowfall outlooks for Sunday.

sev 707

snow 46





Halloween 2009 Weather Outlook

30 10 2009

 

October, 31st Weather Outlook; Northeast/Mid-Atlantic/Southeast System, Northwest/Northern Plains System

11:15PM

On Saturday, a system will push through the Great Lakes and Northeast, while a system affects the Northwest and Plains. Showers and storms will be likely in portions of the Great Lakes, Northeast, Mid-Atlantic and southeast, associated with a system pushing through the great Lakes and into Southern Canada. In the Northwest and Northern Plains, a system moving through Southern canada will affect the area. Rain will be possible associated with this system, with snow being possible in higher elevations in portions of the Rockies and Cascades. Below is the Halloween weather outlook map.

halloween





Friday, October 30th 2009 Weather Outlook

29 10 2009

Friday’s Weather Outlook; Plains/Midwest/Great Lakes/Mississippi Valley/Ohio Valley System, Northwest System

11:00PM

On Friday, a system will through the Midwest. Showers and storms will be likely in portions of the Plains, Midwest, Great Lakes, Ohio Valley and Mississippi Valley, associated with a system pushing through the Midwest. Some storms may become severe in portions of the Southern Mississippi Valely and Gulf Coast. As Cape values will be up to 2500 J/KG, LI’s up to -5 and Effective Bulk Shear values up to 60KT. The lack of forcing will limit the overall severe threat and coverage. The main threats from any storms that become severe, will be damaging winds, hail and an isolated tornado. Flooding rainfall will be likely in portions of the Missisisppi Valley, due to the high moisture content and training storms. On the northside of the system, accumulating snow will be likely in portions of the Plains and Midwest. Accumulations are likely, with up to 6″ being possible in some areas. High winds may create blizzard conditions at times, with blowing and drifting snow. In the Northwest a new system will push into area. This system will bring the chance of rain the the area, with snow being possible in the highest elevations in portions of the Cascades and Rockies. Below are the thunderstorm and snowfall outlooks for Friday.

sev 706

snow 45





Thursdy, October 29th 2009 Weather Outlook

28 10 2009

Thursday’s Weather Outlook; Front Range/Plains/Midwest/Great Lakes/Mississippi Valley System, Northwest System

11:30PM

On Thursday, a system will push through the Plains, as a system pushes through the Northwest. Showers and storms will be likely in portions of the Plains, Midwest, Great Lakes and Mississippi Valley, associated with a system pushing through the Plains. There is a slight risk for severe sotrms in portions of Kansas, Oklahoma, Texas, Missouri, Arkansas and Louisiana.  Scattered showers and storms should be ongoign across portions of the risk area during the Morning. In the wake of this activity, Cape values upp get up to around 3500 J/KG, LI’s up to -7 and Effective Bulk Shear values up to 75KT. A line of severe storms will develop druing the Afternoon and Evenign along the cold frotn from Oklahoma down into Texas. This line will push eastward through the Night, with a continued severe threat. Ahead of this line, discrete cells may develop, which may also become severe. The main threats from the severe storms will be damaging winds, hail and an isolated tornado. Flooding rainfall will be likely in portions of the Missisisppi Valley, due to the high moisture content and training storms. On the northside of the system, accumulating snow will be likely from the Front Range up through the Plains. Over 1 foot of snow will be likely in portions of the Front Range, with up to 1 foot of snow in the Plains. High winds will create blizzard conditions at times, with blowing and drifting snow. In the Northwest, a system will continue to push through the area. Rain will be likely, with accumulating snow being likely in portions of the Cascades and Rockies. Below are the severe weather and snowfall outlooks for Thursday.

sev 705

snow 44





October 27-30th 2009 Inter-Mountain West/Plains Blizzard

28 10 2009

Tuesday-Friday Inter-Mountain Wesy/Plains “Winter” Storm

1:00AM

A powerful system will push through the Inter-Mountain West and Plains, Tuesday into Friday. Heavy snowfall will be likely on the north side of this system from New Mexico up into the Dakotas. Several inches of accumulation can be expected, ranging from up to 12″ in the lower elevations and Plains, to 1-3 feet in the higher elevations where an upslope flow will increase accumulations. High winds will create blizzard conditions at times, with blowing and drifting snow. Below is the snowfall map for this system.

snow 42

 





Wednesday, October 28th 2009 Weather Outlook

27 10 2009

Wednesday’s Weather Outlook; Northeast/Mid-Atlantic System, Inter-Mountain West/Plains System, Northwest System

11:30PM

On Wednesday, a system will push through the Mid-Atlantic, while a system pushes through the Plains, and a new system pushes into the Northwest. Showers and storms will be likely in portions of the Northeast and Mid-Atlantic, associated with a system pushing through the Mid-Atlantic. In the Plains, a system will push into the area from the West. Showers and storms will be likely in portions of the Plains and Inter-Mountain West. Some storms may become severe during the Afternoon and into the Nigh, in portions of the Central and Southern Plains. As Cape values will be up to 2000 J/KG, LI’s up to -5 and Effective Bulk Shear values up to 75KT. The main threats from any storms that become severe, will be damaging winds, hail and an isoalted tornado. On the north side of the system, accumulating snow will be likely in portions of the Rockies and Plains. Several inches of accumulation can be expected int he lower evevations, with over 1-3 feet of snow expected in the higher elevations. High winds may help to create blizzard conditions at times, with blowing and drifting snow. In the Northwest, a new system will pushintot he area. this system will bring the chance of rain to the area, and snow to portions of the Cascades. Below is the thunderstorm and snowfall outlooks for Wednesday.

sev 702

 

snow 41





Tuesday, October 27th 2009 Weather Outlook

26 10 2009

Tuesday’s Weather Outlook; Mississippi Valley/Ohio Valley/Southeast/Mid-Atlantic/Great Lakes System, West/Plains System

11:15PM

On Tuesday, a system will push up into the Tennesse Valley, while a system continues to push through the West. Showers and storms will be likely in portions of the Mississippi Valley, Ohio Valley, Southeast, Mid-Atlantic and Great Lakes, assocaited with a system pushing through the Tennessee Valley. A few storms may become sever ein portions of the Southeast. As Cape values will be up to 2500 J/KG, LI’s up to -6 and Effective Bulk Shear values up to 60KT. The lack of forcing will limit the overall severe threat and coverage. the main threats from any storms that become severe, will be damaging winds, hail and an isolated tornado. In the West, a system will continue to push through the region. Showers and storms will be likely in portions of the region, with accumulating snow being likely in portions of the Cascades and Rockies. Below are the thunderstorm and snowfall outlooks for Tuesday.

sev 700

snow 40