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Big Story Weather – September 4, 2013

September 4, 2013

redOrbit Meteorologist Joshua Kelly

Big Story Weather from September 3:

The heat returned to the Plains again yesterday. Severe weather was limited with no tornadoes reported. The largest hail was 1.75 inches in Maine. The strongest winds came from Utah with gusts around 60-65mph. There were also strong thunderstorms yesterday along the Gulf Coast.

Big Story Weather Discussion for September 4:

Surface Map: High pressure over the Mid-Mississippi Valley will keep the region fairly dry and warm. This will extend into the Mid-Atlantic as well. Low pressure moving through the Northern Plains and Western Great Lakes will bring showers and thunderstorms to the region. Low pressure over the Baja will bring another day of showers and thunderstorms to the Southwest. High pressure over the Northern Rockies will bring partly cloudy skies and warm weather to the region.

Severe Weather: Today we will be watching severe weather over the High Plains and Western Lakes. This area will mostly see strong winds and heavy rainfall along with isolated hail reports. The second area will be along the Gulf Coast. This area will mostly see strong winds and heavy rainfall. The third will be over the Southwest where they will see heavy rainfall and strong winds.

Tropical Weather: We are currently watching two waves. The first is near the Yucatan Peninsula. This one is being watched for some development as it pushes back into the Southwest Gulf of Mexico. Winds are now around 20kts and pressure near 1010mb. The second wave that is being watched is just east of Puerto Rico. This area currently has winds around 30kts and pressure of 1008mb and has a higher potential of development over the next few days.

Select City Forecast:

Buffalo NY: Partly cloudy and cool with a high near 70F and lows near 61F.

Atlanta GA: Partly cloudy skies with a high near 86F and lows near 73F.

Sioux City IA: Partly cloudy with an isolated afternoon thunderstorm. High temps around 77F and low temps near 65F. Total rainfall around 0.15 inches.

Billings MT: Partly cloudy with a high near 82F and lows near 65F.

San Diego CA: Partly cloudy with a high near 80F and lows near 69F.

September 4, 2013 Storm Tracker Update:

Eastern Pacific Ocean: Low pressure moving along the coast of Mexico is being watched for possible tropical development with winds around 25kts and pressure near 1007mb. The system is moving slowly to the west-northwest. Low pressure over the Gulf of Alaska is bringing strong winds and rain showers to the region.

Atlantic Ocean: Low pressure moving through the Hudson Bay will bring showers and thunderstorms all the way from Eastern Canada down the Eastern US and into the Gulf Coast. A tropical wave over the Yucatan Peninsula is being watched for possible tropical development with winds around 20kts and pressure near 1010mb. A second tropical wave to the east of Puerto Rico is also being watched for possible tropical development with winds around 30kts and pressure near 1008mb. This feature is moving slowly west-northwest. Low pressure moving into Western Europe will bring cloudy skies and showers to Northern Europe. Low pressure moving through Eastern Europe will bring a few showers to Russia and Germany.

Western Pacific: Tropical Depression Toraji continues to move up the eastern coast of Japan with winds around 30kts and pressure near 1000mb. The storm will move just to the south of Tokyo today. Low pressure over Eastern China will also bring showers and thunderstorms to the region.

Indian Ocean: The Southwest monsoon will be active today, but a slight shift to the south will decrease rain chances over India and Sri Lanka.

Southern Hemisphere: Multiple areas of low pressure are moving through the basin. Impacts are being felt over Southern South America with wind, rain and even some snow showers over Southern Argentina and Chile. Low pressure moving to the south of South Africa will bring gusty winds to the area. A third low pressure moving through Australia will bring showers to Perth and Central Australia along with cooler weather.

Five-Day Storm Index Outlook for September 4-8:

Buffalo NY: There will be no impacts to start the period. Slight to moderate impacts will be possible from September 6-8 associated with thunderstorms.

Atlanta GA: The area will be mostly impact free, but around September 6 the region will see moderate impacts associated with thunderstorms.

Sioux City IA: The region will have slight to moderate impacts today and again on September 8 associated with thunderstorms.

Billings MT: The region will be impact free all the way through until September 8 when a moderate impact will be possible with associated thunderstorms.

San Diego CA: The next five days will be impact free for the region.

Climate Watch for August 30- September 3:

Buffalo NY: The region started with temps around 3-9 degrees above normal and then finished around 8 degrees below normal.

Atlanta GA: The area saw temps around 2-4 degrees above normal and then a brief fall to around 2 degrees below normal before warming back up to around 4 degrees above normal.

Sioux City IA: The period started with temps around 1-2 degrees below normal an then finished with temps around 1-3 degrees above normal.

San Diego CA: The past five days temps have been around 2-7 degrees above normal.

Major Weather Impacts Discussion for September 4, 2013:

Day 1-3: High pressure over the Mid-Mississippi River Valley will bring partly cloudy skies to the region. This will extend into the Mid-Atlantic as well. Afternoon thunderstorms will be possible along the Gulf Coast. Showers and thunderstorms will be possible over the Northern Plains and the Western Great Lakes. High pressure will bring partly cloudy skies and warm weather to the West and the Rockies, while the low pressure over the Baja will bring showers to the Southwest. Day two high pressure will slide into the Ohio River Valley and the Northeast bringing nice weather to the region along with cooler temps. A frontal boundary will be bringing showers to the Pacific Northwest. The Gulf Coast will see an increase in showers and thunderstorms associated with the tropical wave in the Southwest Gulf. The period will end with high pressure over the East Coast, return flow over the Gulf Coast bringing showers and thunderstorms, and a frontal boundary moving through the Northern Rockies bringing showers and thunderstorms.

Day 4-7: The period will start with high pressure sliding into the Great Lakes. Return flow will be along the Gulf Coast bringing showers and thunderstorms. A frontal boundary moving through the Plains will bring showers and thunderstorms to the region. A tropical wave will be found just to the north of Puerto Rico. Day five high pressure will be over the Northeast. The frontal boundary will be pushing into the Great Lakes with showers and thunderstorms. The southwest monsoon will bring heavy rainfall to the Southwest. The tropical feature will be to the east of Florida. Day six high pressure will be along the East Coast, while tropical moisture will be on the increase along the Gulf Coast. A storm system will be pushing into the Plains with showers and thunderstorms. High pressure will be over the Rockies. The period will finish with a tropical feature moving well of the East Coast. High pressure will be found along the East Coast. A tropical wave will be in the Gulf of Mexico and a frontal boundary extending from the Ohio River Valley into the Southern Plains will bring showers and thunderstorms to the area.

Day 8-12: The period will start with low pressure over Southeast Canada bringing showers and thunderstorms through the Northeast all the way down into the Southeast and back over the Gulf Coast. There will also be increased tropical moisture near Southeastern Texas. High pressure will be over the Rockies. Day ten a strong frontal boundary will extend from the Northeast all the way back into the Gulf Coast with showers and thunderstorms. A very cold area of high pressure will be pushing into the Northern Plains, while the West will remain dry. The period will finish with a massive area of high pressure over the Northeast and Great Lakes bringing cool weather to the region. A frontal boundary along the Gulf Coast will bring showers and thunderstorms to the region. A new storm system will be moving into the Northern Rockies. A tropical wave will also be approaching the Southern Baja increasing showers and thunderstorms over the Southwest.

Long Range Outlook: The period will start with the strong high pressure still over the East Coast creating a blocking pattern forcing moderate rainfall and cooler weather over the Plains. Return flow over the Southeast and Gulf Coast will also lead to moderate rainfalls. A tropical feature will be moving into the Baja bringing moderate rainfall to Southern Arizona and New Mexico. The period will end with high pressure still blocking along the East Coast. A tropical feature will move into the Gulf of Mexico. The tropical feature out West will move inland across Southwest Arizona bringing heavy rainfall to the region and before pushing into the Southern Rockies and the Plains.

Today’s Spotlight Forecast is for Sioux Falls SD:

Wednesday: Partly cloudy with a high near 92F. Winds from the southwest 2-7mph. Overnight lows near 64F.

Thursday: Partly cloudy with an isolated afternoon thunderstorm. High temps around 91F and low temps near 64F. Total rainfall will be around 0.05 inches along with southeast winds 5-10mph.

Friday: Partly cloudy and hot with high temps around 95F. Winds from the southeast 8-13mph. Overnight lows near 63F.

Saturday: Partly cloudy and hot with a high near 97F. Winds from the east 5-10mph. Overnight lows near 68F.

Monday: Partly cloudy with an isolated afternoon thunderstorm. High temps around 94F and low temps near 68F. Winds from the southeast 5-10mph and total rainfall around 0.05 inches.

Ask The Weatherman for September 4, 2013:

Question: What two things are measured when talking about hurricanes?

Answer: When we talk about how strong a hurricane we look at two features. The first wind speed and how strong it is. The second is the storm surge and how high it will be. Storm surge will never be the same for two different storms. Unlike the winds they are more easily compared from storm to storm.

*** To have your question of the day answered or have your city spotlighted for the day make sure to visit redOrbit on Facebook. ***

Green Energy Weather Report for September 4, 2013:

Wave Energy: There will be moderate amounts of wave energy across the Northeast and also the Mid-Atlantic near the frontal boundary. There will also be increasing wave energy over the Southeast. The Northern Gulf will have light amounts of energy. There will be moderate amounts of energy over the Southwest and also the Northwest.

Solar Energy: The Northeast will have slight to moderate amounts of energy today. There will be ample amounts of solar energy along the Gulf Coast and the Southeast. The Southern Plains will also see moderate amounts of energy. The Northern Plains and the Western Lakes will see moderate amounts of energy. The West and the Rockies will have plentiful amounts of solar energy today.

Wind Energy: The best wind energy today will be over the Western Lakes and also over the Northern Rockies as both places will see a fair amount of winds.

Hydro-Energy: There will be light amounts of energy along the Gulf Coast. There will also be light amounts of energy over portions of the Great Lakes and back into the Southern Plains. There will be light amounts of afternoon energy over the Southwest.

September 4 Weather and Your Wallet (Gulfport MS):

A stationary boundary setting up over the region will provide the area with afternoon thunderstorms and warm weather.

Dining: There will be no issues today at lunch. This evening a few rumbles of thunder will be in the area.

Transportation: This morning will be fine, however this afternoon’s commute may be slowed down with strong thunderstorms moving into the region impacting the roads and also the airport.

Shopping: This afternoon you will want an umbrella if you will be heading out.

Electricity: There will be a demand for cooling all day today as high temps rise to around 92F. The total CDD’s for the day will be at 19.

Yard Work: This morning will be the best chance to get things done while it’s still cool and before the rain moves in.

Construction: There will be some afternoon delays due to thunderstorms.

Outdoor Venues: Later this afternoon you may want to wait to take a walk on the boardwalk or along the beach as thunderstorms will be moving through the region.


Source: redOrbit Meteorologist Joshua Kelly

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