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Big Story Weather – November 21, 2013

November 21, 2013

redOrbit Meteorologist Joshua Kelly

Big Story Weather from November 20:

Snowfall over Montana and portions of the Rockies was the big news of the day with snowfall rates around 3-5 inches in some places. The Arctic freeze was the other big story with places over the Dakotas falling into the single digits overnight.

Big Story Weather Discussion for November 21:

Surface Map 11AM: High pressure over the Eastern Seaboard will keep the area dry from the East Coast to the Gulf Coast. Low pressure over the Southwest will bring rain and snow all the way from Arizona to the Dakotas and into the Southern Plains. Some heavy snowfall will be possible at higher elevations. High pressure over the Northern Rockies is going to bring another shot of Arctic Air southward with temps only in the teens over the Plains today.

Surface Map 11PM: High pressure over the Eastern US will bring partly cloudy skies overnight to the region. Low pressure in the Southwest will make for a very active night from the Southwest to the Rockies and into the Plains. There will be plenty of rain, snow and ice over the entire region along with the cold air that will push in over the Northern Rockies and Plains with places falling below zero overnight.

Severe Weather: None forecasted.

Winter Weather: There are multiple winter weather advisories out along with a winter storm warning for parts of New Mexico and Colorado. The winter weather advisories are for Wyoming to Nebraska and South Dakota. A second area will be over Nevada to Utah. A third advisory is over Southwest and West Texas into Oklahoma and northward into Kansas.

Tropical Weather: Tropical storm Melissa has winds around 50kts as it pushes away from land and into the open Atlantic.

Flooding: None forecasted.

Winds: There will be strong winds over SOCAL behind the cold front where winds will range in the 30-45mph range.

72hr Westward Storm Watch: Storm 1 is now pushing into the Gulf of Alaska bringing heavy snowfall to Alaska along with strong winds. Storm 2 is pushing over the Kuril Islands and will make its way into the Gulf of Alaska early next week.

Today’s Spotlight Cities Forecast:

Buffalo NY: Partly cloudy with high temps around 45F and overnight lows near 40F. Friday mostly cloudy with showers. High temps around 43F and overnight lows near 30F. Total rainfall around 0.25 inches. Saturday cold and windy. High temps around 30F and overnight lows near 19F. There will be slight impacts due to the winds. Sunday partly cloudy with a high near 25F and overnight lows near 20F. Monday mostly cloudy with snow. High temps around 34F and overnight lows near 30F. Total snowfall around 3 inches.

Memphis TN: Partly cloudy with a high near 61F and overnight lows near 54F. Friday mostly cloudy with heavy rain. High temps around 48F and overnight lows near 39F. Total rainfall near 1.5 inches. Saturday partly cloudy with a high near 43F and overnight lows near 25F. Sunday partly cloudy with a high near 39F and overnight lows near 30F. Monday mostly cloudy with light snow. High temps near 41F and overnight lows near 30F. Total snowfall less than 1 inch.

Bismarck ND: Mostly cloudy with snow. High temps around 18F and overnight lows near 10F. Total snowfall around 1-2 inches. Friday partly cloudy and breezy with high temps around 19F and overnight lows near 9F. The region will have slight impacts due to wind chill values below zero. Saturday partly cloudy with high temps near 20F and overnight lows near 9F. Sunday partly cloudy with high temps around 30F and overnight lows near 24F. The region will have slight impacts due to strong winds. Monday partly cloudy with high temps around 32F and overnight lows near 25F. The region will have slight impacts due to strong winds.

Billings MT: Partly cloudy with a high near 30F and overnight lows near 27F. Friday partly cloudy with high temps near 41F and overnight lows near 36F. Saturday partly cloudy with high temps near 45F and overnight lows near 40F. Sunday partly cloudy and mild with high temps near 50F and overnight lows near 39F. Monday partly cloudy with high temps near 41F and overnight lows near 35F.

San Diego CA: Mostly cloudy with showers. High temps around 61F and overnight lows near 55F. Total rainfall around 0.50 inches. Friday mostly cloudy with showers. High temps around 61F and overnight lows near 55F. Total rainfall around 0.30 inches. Saturday partly cloudy with high temps near 63F and overnight lows near 55F. Sunday partly cloudy with high temps near 63F and overnight lows near 59F. Monday partly cloudy with high temps near 65F and overnight lows near 60F.

Ask The Weatherman for November 21, 2013:

Question: What is cold air advection?

Answer: Today we look at cold air advection. This is when the transportation of cold air either horizontally or vertically is taking place. This type of advection takes place in the Northern Hemisphere. When northerly winds blow, they push the colder air from Canada and the Arctic southward into the United States. When a cold front passes your area, you notice the temps usually get colder. This is cold air advection taking place.

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November 21, 2013 Storm Tracker Update:

SST Analysis (right image): Today we are watching the temps off the coast of Peru. We see a nice surge of colder waters moving northward associated with the cold current.

Eastern Pacific Ocean: Low pressure moving into the Gulf of Alaska will bring strong winds and heavy snowfall to Alaska. Low pressure over the Southwest US will bring rain, winds and snowfall to a large portion of the region.

Atlantic Ocean: Low pressure is moving over the open Atlantic towards Iceland (Melissa). Low pressure over Western Europe will bring showers to Italy and Spain and snow to the Alps. Low pressure moving through the Middle East will bring showers, thunderstorms and rare flooding to the region.

Western Pacific: Low pressure moving away from Japan will bring a few snow showers to Northern Japan.

Indian Ocean: Tropical Cyclone 4B has winds around 50kts and pressure near 994mb as it continues to push on shore over Eastern India.

Southern Hemisphere: Multiple areas of low pressure moving through the basin. Impacts are being felt over Argentina with thunderstorms. South Africa is also seeing strong winds and isolated showers and thunderstorms. A third low pressure is bringing rain and thunderstorms to portions of Eastern Australia.

Major Weather Impacts Discussion for November 21, 2013:

Day 1-3: High pressure over the Eastern US will bring another nice day to the region. This will extend into the Eastern Lakes and all the way into the Gulf Coast. A new storm system over the Southwest will have large impacts from the Dakotas to Texas and the Southwest with heavy rain, heavy snow and strong winds. High pressure over the Northern Rockies is going to bring some cold air to the Northern Plains with temps in the single digits and wind chill values below zero. The Pacific Northwest will enjoy partly cloudy skies today. High pressure will slide into the Central Plains. Showers will extend ahead of this high over the Ohio River Valley and into the Gulf Coast. A second piece of energy will be over the Southwest bringing another day of showers and snow showers for the region. The period will finish with high pressure dominating most of the US with very cold weather. Low pressure over the Baja will bring showers and snow showers to the Southwest.

Day 4-7: The period will start with high pressure sliding into the Eastern US, while the low pressure over the Baja will move into Mexico bringing showers to Texas. Day five the storm will push into the Gulf of Mexico bringing very heavy rainfall and thunderstorms to the Gulf Coast. High pressure will dominate a good portion of the country. There will be snow showers over the Great Lakes. Day six the low will move into the Florida Panhandle bringing heavy rains to the Gulf Coast and the Southeast. There may be some snow mixed in over Arkansas and Northern Mississippi as well. The period will end with low pressure exiting the Eastern US. Look for another cold high pressure to settle in over a good portion of the US.

Day 8-12: The period will start with a clipper system moving through the Northern Plains bringing light snow to the area as another strong shot of cold air moves into the Plains. Day ten the storm system will push into the Southern Plains bringing rain and snow to the area. The cold air will settle southward. The period will end with high pressure over the Ohio River Valley and low pressure over Texas bringing rain and possibly heavy snowfall to the Southern Plains.

Long Range Outlook: The long range will be very active with multiple storm systems moving through the country with the potential for heavy snowfall from the Dakotas to the East Coast. Along with that, another round of cold air will settle in over most of the United States.

Green Energy Report for November 21, 2013:

Wave Energy: There will be extreme amounts of wave energy over the entire West Coast as a storm system sits over the Southwest US. There will be slight amounts of energy over the Gulf Coast and the Southeast US. There will be moderate amounts of energy over the Northeast.

Hydro Energy: There will be ample amounts of short term energy over the Southwest US. There will also be ample amounts of long term energy over the Southwest in the form of snow. This will extend into the Plains as well.

Solar Energy: There will be good amounts of solar energy over the Pacific Northwest and also the Gulf Coast through the Southeast and into the Eastern Lakes and the Northeast.

Wind Energy: The best wind energy will be found over the Great Lakes and then a second place will be over the Southwest and the Rockies behind the cold front.

Weather and Your Wallet for Sioux Falls SD:

High pressure will begin to push into the area bringing very cold conditions to the area and wind chill values below zero.

Dining: There will be no issues with enjoying a meal at the park today. Just make share to bundle up.

Transportation: There will be no issues on the roadways or at the airport today.

Shopping: There will be no issues with enjoying some pre-holiday shopping. Just make sure to bundle up.

Electricity: There will be a high demand for heating today due to the cold air moving in. The forecast is for 42HDD’s on the day.

Yard Work: There will be no issues with working in the yard or cleaning up the last of the leaves.

Construction: There will be impacts to any crane operations or higher elevation jobs due to the stronger winds.

Outdoor Venues: Bundle up and enjoy the cold air, but it should be a good afternoon for taking a walk at the lake.


Source: redOrbit Meteorologist Joshua Kelly

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