A weather forecast update for the U.S. and the tropics, highlighting several key points:
1. A heat wave is expected to affect the eastern and central U.S., causing problems.
2. A severe weather risk exists on September 27, 2023, with a slight risk of severe weather in Kentucky and a marginal risk in the Ohio Valley.
3. Tropical Storm Philippe is located in the middle of the Atlantic Ocean, with 45 mph winds, and is expected to weaken into a depression by Thursday.
4. Another disturbance is trying to form behind Philippe, but its development is uncertain.
5. A cluster of thunderstorms is present in the Caribbean, but no significant organization is expected.
6. The beginning of October is expected to be quiet in terms of storms, with a huge ridge of high pressure dominating the weather pattern.
7. However, a big area of cold air is building up and will eventually unleash itself onto the central and eastern U.S., leading to an outbreak of severe weather.
8. The weather pattern is expected to remain hot in the Great Lakes region and cold in the west, with a transition to more seasonal temperatures expected in October.
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Here are the key facts extracted from the text:
1. A heat wave is expected to affect the eastern and central United States.
2. Tropical Storm Philippe is located in the middle of the Atlantic Ocean.
3. Another disturbance is trying to form behind Philippe.
4. A severe weather risk is forecast for September 27, 2023, in Kentucky, Illinois, and Indiana.
5. The risk includes a slight chance of severe weather, with a 15% probability of severe wind and hail.
6. A marginal risk of severe weather extends over the entire Ohio Valley.
7. A two percent probability of a tornado exists within 25 miles of any given point in Kentucky.
8. Flash flooding is possible in central Kentucky due to training thunderstorms.
9. The National Hurricane Center has issued a graphic showing Philippe's 45mph winds.
10. Philippe is expected to weaken into a depression by Thursday due to wind shear.
11. The Caribbean is experiencing record warmth, making it a region to watch for potential storms.
12. A huge trough of high pressure is expected to bring rain and possibly snow showers to the higher elevations in the Pacific Northwest and West Coast.
13. A big area of cold air is building up over the western United States, which will eventually unleash itself onto the central and eastern part of the country.
14. The Great Lakes region will experience extreme heat, with temperatures up to 30 degrees above average.
15. October is expected to be extremely nice and quiet in terms of storms, but a transition to colder weather is expected to bring severe weather outbreaks.
16. The western United States will experience cooler temperatures, while the eastern United States will experience hot temperatures.
17. A severe weather outbreak is expected in October, with several rounds of strong severe storms potentially affecting the central and eastern United States.
18. Power outages are a common occurrence during severe weather events.