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Last updated on April 19, 2014 at 1:20 EDT

Big Story Weather – September 11, 2013

September 11, 2013

redOrbit Meteorologist Joshua Kelly

Big Story Weather from September 10:

The heat wave was in full force yesterday from the Ohio River Valley back into the Plains with many places near 100F along with heat index values near 105F. Flooding rains continued over portions of the Southwest. Severe weather was very limited with no tornadoes or hail reported. The strongest winds came from Iowa with 60-70mph gusts.

Big Story Weather Discussion for September 11:

Surface Map: Low pressure moving across the Great Lakes and Southeast Canada will bring another day of showers and thunderstorms over the region. This will extend back into the Plains as well. The heat will be in place over the Ohio River Valley extending into the Plains and also over towards the Mid-Atlantic region. Low pressure over the Southwest will bring another day of flooding rains to the region. High pressure over the Northern Rockies will keep the region dry and mild.

Severe Weather: The Southeast US will have a few strong thunderstorms with winds and heavy rainfall being the biggest concerns. The Southwest will have strong thunderstorms with heavy rainfall the primary threat. The Great Lakes to the Plains will have strong to severe storms with hail and strong winds and heavy rainfall.

Flooding: There will be a high chance for flooding over the Southwest today as monsoonal rains unleash on the area with heavy rainfall.

Heat: A strong upper level high over the middle of the US will be responsible for some very dangerous heat from Iowa to the Chicago and Detroit areas today as high temps soar into the 90’s and heat index values reach 105F.

Tropical Weather: Tropical Storm Gabrielle has winds near 45kts and pressure of 1009mb. The storm will begin to weaken as it moves northward over the next 24 hours. You can see an image of the storm here. This link from NASA will give you more insight into special cloud top features and even some upper air data from the storm. Hurricane Humberto has officially become the first hurricane of the Atlantic Season with winds around 65kts and pressure near 995mb. In this image you can also see some of the features associated with Humberto. This link will provide you in depth analysis of Humberto from NASA. As the tropical season continues to move along, feel free to stop by the RedOrbit.com Tropical Blog to see what we have in store for the area with our seasonal outlook. This outlook was created prior to the hurricane season.

Select City Forecast:

Baltimore MD: Partly cloudy with a high near 84F and lows near 64F.

Little Rock AR: Partly cloudy with afternoon thunderstorms. High temps around 87F and lows near 70F. Total rainfall around 0.35 inches.

Topeka KS: Partly cloudy with afternoon thunderstorms. High temps near 85F and lows near 70F. Total rainfall near 0.25 inches.

Salt Lake City UT: Partly cloudy with a high near 89F and lows near 71F.

San Diego CA: Partly cloudy with high temps near 80F and lows near 62F.

September 11, 2013 Storm Tracker Update:

Eastern Pacific Ocean: A tropical wave near the coast of Mexico is being watched for possible tropical development. Low pressure moving through the Gulf of Alaska will bring another day of showers to the region. A secondary low pressure near the Aleutian Islands will bring showers and gusty winds to the area.

Atlantic Ocean: Hurricane Humberto has winds around 65kts and pressure near 995mb. The storm is forecasted to move northward and then make a slight westward track over the weekend. The storm is also forecasted to weaken back into a tropical storm. Tropical Storm Gabrielle continues turning near Bermuda with winds around 45kts and pressure of 1009mb. This storm will gradually weaken as it moves northward over colder waters towards Canada. A third tropical wave is being watched near the Yucatan Peninsula for possible tropical development. Winds are now at 25kts and pressure is near 1009mb. This storm has a good chance of becoming a tropical system once it pushes into the Gulf of Mexico this weekend.

Western Pacific: Low pressure moving through Central Russia will bring showers to the region. A second low pressure area to the north of Japan will bring showers to portions of Japan today. There is one powerful tropical wave that is being watched for possible tropical development and it is located to the northwest of Guam. Winds are now at 25kts and pressure is near 1004mb.

Indian Ocean: The southwest monsoon will increase in wind and also rainfall as it pushes slowly back to the north over India and Sri Lanka.

Southern Hemisphere: Multiple areas of low pressure moving through the basin with impacts being felt over Southern Argentina and Chile with rain and snow showers. A second area of low pressure is bringing moderate winds to South Africa. A third low is bringing showers and gusty winds to portions of Southern Australia from Perth to Sydney.

Five-Day Storm Index Outlook for September 11-15:

Baltimore MD: The area will be impact free today. Over the next couple of days a frontal boundary will make its way through bringing moderate impacts to the region associated with thunderstorms.

Little Rock AR: The region will see moderate impacts over the next couple of days associated with thunderstorms and then again around the 15th another chance for moderate impacts with another round of thunderstorms.

Topeka KS: The area will have moderate impacts over the next couple of days as thunderstorms fire along the cold front. On the 14th another round of thunderstorms will be possible.

Salt Lake City UT: The region will start out impact free, By the 13th an area of thunderstorms will move through bringing a slight to moderate impact to the region.

San Diego CA: The area will be impact free over the next five days.

Climate Watch for September 6-10:

Baltimore MD: The area started out around 3 degrees below normal and then warmed to around 1-8 degrees above normal before falling briefly to around 3 below normal again and then finished the period around 13 degrees above normal.

Little Rock AR: The past five days have been warm with temps around 4-13 degrees above normal for the area.

Topeka KS: The past five days have also been very hot for the area with temps around 10-20 degrees above normal.

Salt Lake City UT: The region started with temps around 6-14 degrees above normal and then finished around 1-2 degrees below normal.

San Diego CA: The region started with temps around 2-11 degrees above normal followed by a slight cooling as temps fell to around 2-3 degrees below normal.

Major Weather Impacts Discussion for September 11, 2013:

Day 1-3: Low pressure moving through the Great Lakes and Southeast Canada will bring showers and thunderstorms to the region. These storms will extend southward into the Southern Plains along the frontal boundary. High pressure building in over the Northern Rockies will bring cooler and drier weather to the region. The Southwest US will have another day of flooding rains associated with the southwest monsoon. The Gulf Coast and the West Coast will be dry and nice today. Day two the frontal boundary will push into the Northeast bringing showers and thunderstorms to the region. A tropical will take shape over the Southwest Gulf of Mexico. High pressure will be over the Great Lakes, while the southwest monsoon will bring another day of showers to the region. The period will end with a stationary boundary along the Gulf Coast bringing showers and thunderstorms to the region. The tropical will be pushing towards Mexico and Southern Texas, while high pressure sits over the Great Lakes and the rains continue over the Southwest.

Day 4-7: The period will start with high pressure along the East Coast. The tropical will continue to push into the Texas and Mexico region. A new storm system will be moving into the Plains bringing showers and thunderstorms to the area. Day six high pressure will be over the Eastern Lakes and also the East Coast. A storm system will move into the Northern Plains bringing very strong winds along with showers and thunderstorms. The tropical will continue to move towards the Mexico and Texas border bringing heavy rainfall to the region. Low pressure will push towards the Northern Rockies. The period will finish with high pressure along the East Coast and the tropical moisture surging into Texas and portions of the Northern Gulf Coast.

Day 8-12: The period will start with high pressure over the East Coast. The remains of the tropical will push into the Gulf Coast region bringing moderate rainfall from Houston to Mobile. A storm system moving through the Northern Plains will bring showers to the region, while the West remains dry. Day ten high pressure will slide off the East Coast. A storm system will push into the Great Lakes bringing winds, rain and some severe thunderstorms. A new storm system will also be entering the Pacific Northwest. The period will finish with the energy from the tropical moving back out over the Mid-Atlantic and possibly regaining tropical strength. A very powerful fall storm will push into the Northern Plains bringing a high chance for severe weather along with very gusty winds to the region. Another tropical feature will be pushing towards the Yucatan Peninsula during this time.

Long Range Outlook: The long range period will remain very active with tropical activity and also the transitioning low pressures across the United States.

Today’s Spotlight Forecast is for Billings MT:

Wednesday: Partly cloudy and mild with high temps around 81F. Winds from the northeast 9-14mph. Overnight lows near 56F.

Thursday: Partly cloudy and nice with a high near 80F. Winds from the southeast 9-14mph. Overnight lows near 56F.

Friday: Partly cloudy and mild with a high near 80F. Winds from the northwest 5-10mph. Overnight lows near 59F.

Saturday: Partly cloudy and mild with a high near 81F. Winds from the northeast 9-14mph. Overnight lows near 55F.

Sunday: Partly cloudy and nice with a high near 80F. Winds from the southeast 9-14mph. Overnight lows near 60F.

Ask The Weatherman for September 11, 2013:

Question: What makes jet contrails in the sky?

Answer: When you notice an airplane flying overhead and behind it is this great looking white thin cloud, this is known as a jet contrail Contrails are made by the moisture from the exhaust of the airplane interacting with air particles at that level and create condensation which leads to the formation of the jet contrail.

*** 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 11, 2013:

Wave Energy: There will moderate to extreme amounts of energy along the Northeast and also the Mid-Atlantic associated with Tropical Storm Gabrielle. The Southeast will continue to have moderate to extreme amounts of energy. The Northern Gulf of Mexico will have light amounts of energy. The Southwest and Northwest will see light to moderate amounts of energy.

Solar Energy: There will be ample amounts of energy over the Gulf Coast and also the Southern Plains. Later this afternoon the Northeast will also have ample amounts of energy along with the Ohio and Upper Mississippi River Valley. There will be ample amounts of energy along the West Coast.

Wind Energy: The best place for today’s wind energy will be over the Central Great Lakes behind the cold front and also the Northern Rockies between the high pressure gradient.

Hydro-Energy: There will be ample amounts of moisture over the Northern Plains and also the Western Lakes along the frontal boundary. There will also be ample amounts of energy along the Colorado River from Colorado into the Southwest.

September 11 Weather and Your Wallet (Biloxi MS):

An upper level ridge over the area will keep the region warm and dry today.

Dining: There will be no issues with dining out today as it will be very nice. It might get a tad bit warm this afternoon but otherwise a very nice day in store.

Transportation: There will be no weather delays along the major roads or at the airport.

Shopping: Today will be a nice day to hit the malls and do some shopping.

Electricity: There will be a moderate demand for cooling today as high temps reach near 90F. This will create around 18CDD’s on the day.

Yard Work: Today will be a nice day to get out and clean up the yard or cut the grass.

Construction: There will be no issues with outdoor projects today.

Outdoor Venues: The region will be impact free with no problems enjoying a walk along the boardwalk.


Source: redOrbit Meteorologist Joshua Kelly

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