A cold front is still likely to move southeast through Florida on Saturday, however instead of transitioning to a stationary front, it is expected to continue moving through south Florida into Sunday. Surface winds on Saturday will be mostly from the north with the approach of the front, with upper level winds from the west to southwest bringing mostly cloudy conditions to the region in the late afternoon to evening on Saturday. On Sunday, winds are expected out of the northeast as a surface high pressure system builds in over the southeast region. The winds will bring moisture off the Atlantic, resulting in partly to mostly cloudy conditions primarily concentrated in the lower levels of the atmosphere.
By: Stephen McCoy Temperatures in this update remain mostly consistent with the initial forecast, with high temperatures in the low to mid 80's each day. Dew point temperatures in the mid to upper 60's will cause heat index values in the upper 80's on Friday, and the mid 80's on Saturday and Sunday. The long-range models have shifted the chances for precipitation to Friday as moisture propagates over the region in the lower levels. However, due to the short-term models not showing any occurrence of rain through the weekend chances are only slight and if showers do occur, they will be mostly scattered.
A cold front is still likely to move southeast through Florida on Saturday, however instead of transitioning to a stationary front, it is expected to continue moving through south Florida into Sunday. Surface winds on Saturday will be mostly from the north with the approach of the front, with upper level winds from the west to southwest bringing mostly cloudy conditions to the region in the late afternoon to evening on Saturday. On Sunday, winds are expected out of the northeast as a surface high pressure system builds in over the southeast region. The winds will bring moisture off the Atlantic, resulting in partly to mostly cloudy conditions primarily concentrated in the lower levels of the atmosphere. By: Stephen McCoy Hot and muggy conditions await for the Michelin IMSA SportsCar Encore at Sebring this weekend with temperatures in the mid 80's expected each day. Partly cloudy with chances for precipitation are in the forecast for Saturday and Sunday after sunny conditions for Friday.
Zonal flow in the mid and upper levels of the atmosphere will be present through the day on Friday, bringing dry air from the west to the region. Some light cloud cover could be possible during the day as some moisture moves in from southeasterly winds in the lower levels. Surface winds also from the southeast will bring warm, moist air to the region, causing temperatures to reach the mid-80's with dew point temperatures in the upper 60's; subsequently, heat index values are likely to reach 90F. Overnight Friday into Saturday, a surface low pressure system is expected to develop off the mid-Atlantic coast ahead of a strong upper level shortwave trough; a cold front will extend from this system to the southwest into the Gulf of Mexico. The surface low is expected to move to the northeast up the east coast of the US through Saturday, while the cold front is expected to slowly move to the southeast. The front will likely reach Sebring in the mid-afternoon to evening, though due to it stretching from New England to the Gulf Coast, it will significantly weaken through the day. The weakened front is unlikely to affect the temperature for the day, however it is expected to provide enough lift to cause a slight chance for scattered showers or thunderstorms as it approaches the track. As the front passes, surface winds will shift to the north to northeast as high pressure builds into the southeast region. Similar conditions are expected on Sunday as the cold front transition into a stationary front over central Florida. Surface winds will continue from the north and northeast, though wind speeds are expected to strengthen as the winds come off the Atlantic as opposed to over land. The stationary front will bring a chance for showers or thunderstorms to the region, especially in the afternoon and could have an impact on Sunday's race. Lingering moisture in the lower levels of the atmosphere will cause some partly to mostly cloudy conditions during the day, with cloud cover increasing in the evening. By Scott Martin. While Friday and Saturday look to be excellent weather days out at Circuit Of The Americas, Sunday is starting to look a little stormy as a shortwave will be moving through the area. The main window of showers and thunderstorms over the track on Sunday will be from 1:00 am CT through 5:00 pm CT. The good news is that the main focus of storms should occur before 6:00 am CT, with a few lingering showers possible after. Timing and chances will be adjusted as we get closer. At this point, we are going with a 50% chance of showers and storms. As far as Friday and Saturday, no worries of rain as you can expect plenty of sunshine with nice temperatures. Winds will be a little breezy at times on Saturday, possibly gusting up to 20 MPH.
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