Big Story Weather – July 25, 2013
Daily weather forecast and wrap-up provided by redOrbit meteorologist Joshua Kelly.
Big Story Weather from July 24: Tropical Storm Dorian developed in the Atlantic, along with another invest area. Severe weather was limited. There were plenty of wind reports with the strongest coming from MT/WY where both places saw wind gusts around 70-75mph and the largest hail was reported in NE at 2.75 inches. The warm weather continued to impact the Southern US from Arizona to Alabama where many places saw temps over 100 and Heat Index values over 110. There was some cooler weather that moved into the Northern Plains with overnight lows falling into the lower 50′s.
Big Story Weather Discussion for July 25:
Surface Map: High pressure over the Northeast will bring nice weather to Maine. Low pressure moving up the Mid-Atlantic coast will bring showers and thunderstorms to the region. This will extend back to the Gulf Coast as well. A new developing low pressure area will push out of the Rockies and bring a line of severe weather over parts of the Northern Plains along with showers and thunderstorms to parts of the Southern Plains. The West will be dry and hot over the Southwest and dry and mild over the Northwest.
Severe Weather: There will be two areas of interest today. The first will be from the Mid-Atlantic to the Gulf Coast along the frontal boundary with damaging winds the most likely event to occur. The second area will be from the Rockies to the Northern Plains. This area will most likely see large hail and damaging winds.
Tropical Weather: Tropical Storm Dorian is currently moving westward across the Atlantic with winds around 50kts and pressure near 999mb. The storm is forecasted to gain some strength over the next 24 hours as it continues its westward movement. We are also now watching 99L that has developed over the Northern Atlantic. This storm is showing a slow south-southwest movement and has winds around 20kts and pressure of 1017mb.
Here is the weather for a few select cities:
Boston MA: Partly cloudy with afternoon thunderstorms and a high near 66F. Overnight lows will be around 59F. Total rainfall will be around 0.50 inches.
Memphis TN: Partly cloudy skies with a high near 78F. Overnight lows will be around 70F.
Minneapolis MN: Partly cloudy with a chance for thunderstorms – some may be strong to severe. High temps will rise to around 75F and overnight lows will be near 63F. Total rainfall around 0.50 inches.
Denver CO: Partly cloudy with afternoon thunderstorms and a high near 77F. Overnight lows will be around 67F. Total rainfall near 0.35 inches.
San Francisco CA: Partly cloudy skies with a high near 75F and lows around 66F.
July 25, 2013 Storm Tracker Update:
Eastern Pacific Ocean: Tropical Depression #6 continues to move over the Eastern Pacific. Winds are around 30kts and pressure near 1005mb. A tropical storm is likely by this afternoon as it continues moving westward towards Hawaii. Low pressure moving over the Pacific slowly towards the east will bring high winds and seas to the region.
Atlantic Ocean: Tropical Storm Dorian has winds around 50kts and a pressure of 999mb. This storm will gain strength today as it continues a westward track. Another area of interest off the east coast near Bermuda is also being watched for slow development. Winds are around 20kts and a pressure of 1017mb. This feature will slowly drift south-westward and only intensify slightly today. Low pressure moving along the East Coast will bring showers and thunderstorms to the Mid-Atlantic and Gulf Coast. Another area of low pressure moving through the Rockies and Central Plains will bring showers and thunderstorms to the region. Low pressure moving over Central Europe will bring showers to the region. A strong tropical wave has developed over Africa and will need to be watched as it pushes slowly to the west.
Western Pacific: Low pressure to the west of Japan will bring showers to parts of Northern Japan, while another low pressure moves over the open ocean towards Midway Island. This will bring showers to the region along with high winds and seas. A tropical feature to the west of Manila is also being watched for possible tropical development. Winds are around 15kts and pressure of 1010mb.
Indian Ocean: The monsoonal trough is active again today with heavy rainfall likely for parts of India and scattered thunderstorms for the majority of Southeast Asia.
Southern Hemisphere: Multiple areas of low pressure are moving through the region with impacts being felt around Argentina with showers and also impacts being felt over parts of Southern Australia with strong winds and showers.
Five-Day Storm Index Outlook for July 25-29:
Boston MA: The area will have slight to moderate impacts over the next couple of days associated with thunderstorms and then again on July 28 as another round of thunderstorms moves through the region.
Memphis TN: Today will be an impact free day. The rest of the forecast period will see slight to moderate impacts associated with thunderstorms.
Minneapolis MN: The area will see moderate impacts today associated with thunderstorms. The remainder of the forecast period will be impact free.
Denver CO: There will be moderate impacts in the region today, followed by a brief impact free period and then another chance for slight to moderate impacts on July 28.
San Francisco CA: The region will enjoy the next five days being impact free.
Climate Watch for July 20-24:
Boston MA: The region saw temps around 14 degrees above normal followed by a cool down with temps around 1-6 degrees below normal and then finished the period around 6 degrees above normal.
Memphis TN: The period started with temps around 1-2 degrees above normal and then cooled to around 3-6 degrees below normal for the remainder of the period.
Minneapolis MN: The area started with temps around 2-3 degrees below normal and then warmed to around 5 degrees above before finishing the period around 5-6 degrees below normal.
Denver CO: The area started with temps around 1-4 degrees above normal and then finished around 5 degrees below normal.
San Francisco CA: The area started with temps around 2-4 degrees below normal and then briefly warmed to around 6 degrees above normal and then finished the period around 1-3 degrees below normal.
Major Weather Impacts Discussion for July 25, 2013:
Day 1-3: High pressure over Maine will bring partly cloudy skies and cooler weather to the region. Low pressure moving up the Eastern Seaboard will bring showers and thunderstorms from the Mid-Atlantic to the Gulf Coast. There will also be another frontal boundary moving through the Northern Plains that will bring showers and thunderstorms to the area – some severe weather will be possible. The majority of the West will be dry and cool for the Northwest and hot for the Southwest. Day two the storm system will move into Maine bringing heavy rainfall to the region, while the Plains low moves towards Missouri bringing heavy rainfall and some severe weather to the region. A tropical storm will continue to move towards Hawaii. The period will end with heavy rain along the Gulf Coast and also showers and thunderstorms over the Great Lakes. The monsoonal rains will increase over the Southwest and the tropical storm will continue to push towards Hawaii.
Day 4-7: The period will start with low pressure over Southeast Canada. The cold front will push from the Northeast all the way back to the Gulf Coast and will be the focus point for showers and thunderstorms. A new low will push into Oklahoma bringing showers and thunderstorms to the region, while the tropical storm continues to move towards Hawaii. Day six the storm system will move into Ohio River Valley and extend into the Gulf Coast and will bring showers and thunderstorms to the region. High pressure over the West will keep most of the region dry, while a few showers will be possible over Arizona. A strong low pressure area will be moving towards Alaska and the remains of the tropical will be pushing into the Hawaii region. The period will finish with a frontal boundary along the East Coast. Tropical Storm Dorian will begin to push towards Florida and another low pressure area will be moving through the Plains bringing another round of severe weather to the region.
Day 8-12: The period will start with a frontal boundary over the Great Lakes extending southward this will bring showers and thunderstorms to the region. Dorian will continue to move slowly towards Florida, while high pressure builds in over the Northern Rockies. The West will remain dry. Day ten a low pressure area will move into the Northeast. The extended cold front will begin to pick up Dorian and push it onshore towards the Carolinas with very strong winds and heavy rainfall. High pressure over the Northern Plains will bring nice weather to the region. The monsoonal rains will begin to increase over the Southwest again into the Colorado Rockies. The period will finish with Dorian moving up the Eastern Seaboard, while a strong high pressure area moves into the Great Lakes.
Long Range Outlook: The period will start with Dorian moving towards Maine and another frontal boundary moving into the Plains. The period will finish with another storm system moving into the East Coast bringing rainfall along the coast.
Today’s Spotlight Forecast is for Fargo ND:
Thursday: Partly cloudy with a few strong thunderstorms this afternoon. High temps around 77F and low temps near 50F. Winds from the northwest 9-14mph and total rainfall near 0.15 inches.
Friday: Partly cloudy with a high near 68F. Winds from the northwest 10-15mph as overnight lows fall to around 46F.
Saturday: Partly cloudy with a high near 73F. Winds from the northwest 7-12mph and a very cold overnight with low temps around 43F.
Sunday: Partly cloudy with a high near 74F. Winds from the southeast 2-7mph as overnight lows fall to around 50F.
Monday: Partly cloudy and warmer with a high near 82F. Winds from the southwest 5-10mph as overnight lows fall to around 60F.
Ask The Weatherman for July 25, 2013:
Question: What do non-severe thunderstorms need to develop?
Answer: To get just an everyday thunderstorm you need moisture, upward vertical motion and divergence aloft. How do we get these three things> In the Plains of the US, we look for the moisture to come from the Gulf of Mexico. The vertical motion comes from a frontal boundary or some form of lift in the sky. The divergence aloft comes from the jet stream going over top of the region.
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Green Energy Weather Report for July 25, 2013:
Wave Energy: There will be light amounts of wind energy over the Northeast. The Mid-Atlantic and Southeast will see moderate amounts of wave energy associated with the low off the coast. The Northern Gulf Coast will see light to moderate amounts of wave energy. The Southwest Pacific will see moderate to extreme amounts of wave energy as the tropical depression moves just to the south of the region. The Pacific Northwest will have light to moderate amounts of energy as well.
Solar Energy: There will be pockets of good solar energy over the Western US, along with the Rockies and the Southern Plains. There will also be pockets of good solar energy over the Western Great Lakes and into the extreme Northeast US.
Wind Energy: The best wind energy locations will be over the Great Lakes and parts of Eastern Kentucky.
Hydro-Energy: There will be moderate amounts of hydro energy from the Mid-Atlantic back into the Gulf Coast. There will also be lighter amounts of hydro energy over the Northern Plains and parts of the Colorado Rockies.
July 25 Weather and Your Wallet (Mobile AL):
A frontal boundary draped over the region will bring another day of warm and muggy weather along with thunderstorms during the afternoon.
Dining: There will be impacts to outdoor eating venues as the thunderstorms move through the region.
Transportation: Looking at delays on the major highways this afternoon as heavy rainfall is likely. There is also the potential to see some delays at the airport.
Shopping: There will be a need for an umbrella today if you’re out shopping.
Electricity: There will be demand for cooling all day long and into the evening, however this afternoon there will be a moderate demand with the total for today around 25CDD’s.
Yard Work: Today will be a good day to get the yard cleaned early or the grass mowed this morning.
Construction: There will be some delays as the thunderstorms will bring outdoor work to a slower pace.
Outdoor Venues: This morning would be a good time to get out and go for a walk along the board walk, however this afternoon the rain will move in.
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