Tuesday Night, July 6, 2015
Chief Meteorologist Jason Simpson
Chance of significant rain looking slim this week
Huntsville International recorded 0.02″ of rain on Monday in a quick shower that briefly poured down on a small part of Limestone and Madison Counties. It sure felt hotter Monday; as it should have! It was the hottest day of the month so far, but that title that will not last very long. Fewer storms in the forecast means hotter weather in the near future.
Temperatures climb to the upper 80s and lower 90s on Tuesday afternoon with only a 20% chance of an isolated shower or thunderstorm. The chance of rain is a little higher in Southern Tennessee and a little lower southwest of Huntsville and Decatur, but there is not a “great” chance of widespread rain around here anytime soon.
The heat is on! Highs in the 70s and 80s in July? The first week of the month has been well-below normal with rain recorded on each day since July 1, but that all changes this week. Expect hotter temperatures each day through the weekend; the highest number on our forecast right now is only 94ºF, but it will feel hotter than that.
High humidity plus hotter temperatures brings the heat index (the apparent temperature to your body) up near 100ºF by Thursday, Friday and Saturday.
A strong high building overhead squashes most of the scattered showers and storms through the weekend, but it may not be strong enough to prevent all of them. A few hit-or-miss, pop-up showers/storms developing each afternoon should be just enough to keep temperatures from running away to 100-degree territory.
Another pattern shift: The ridge slips west of the Tennessee Valley early next week setting up another northwesterly flow situation; that’s the set-up that kept the weather unusually cool and wet last week. More widespread, heavy thunderstorms are possible if this scenario plays out, so make hay while the sun shines! If you need to do things outdoors without the threat of rain, do it this week to avoid the potentially-heavy storms again by next Monday and Tuesday.
TONIGHT: Partly cloudy with patchy fog developing. Isolated showers/storms are possible mainly in Tennessee overnight. Low: 71. Wind: SSE 2-4. Rain: 10%.
TUESDAY: Breezy, warm and humid with a mixture of clouds and sunshine. One or two downpours are possible in the afternoon. High: 90. Wind: SW 10-17. Rain: 20%.
WEDNESDAY: Hot and humid with only a small chance for a brief shower. High: 92. Wind: WSW 7-14. Rain: 20%.
THURSDAY: Hot and humid with scattered afternoon clouds. A stray shower is possible, but not likely. High: 93. Wind: NW 6-12. Rain: 10%.
FRIDAY: Hot and humid with a mix of clouds and sun. Heat index values as high as 99 in the afternoon. High: 94. Wind: Light NW. Rain: 10%.
SATURDAY: Very hot and humid. Heat index values climb to near 100 in the afternoon. A stray downpour is possible, but not likely. High: 94. Wind: NW 4-8. Rain: 10%.
SUNDAY: Partly sunny, hot and humid. A stray shower or storm is possible during the heating of the afternoon. High: 94. Wind: NW 5-10. Rain: 10%.
MONDAY: Scattered storms become more likely. Hot and humid. High: 92. Wind: W 10-15. Rain: 40%.