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Topic Title: Christmas day cold Topic Summary: Created On: 12/21/2020 09:19 AM |
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- Central Floridave | - 12/21/2020 09:19 AM |
- Central Floridave | - 12/21/2020 05:19 PM |
- ww | - 12/23/2020 04:18 AM |
- scombrid | - 12/23/2020 08:12 AM |
- Central Floridave | - 12/24/2020 06:25 AM |
- Central Floridave | - 12/24/2020 06:27 AM |
- Central Floridave | - 12/25/2020 06:29 AM |
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12/25/2020 06:29 AM
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Area Forecast Discussion
National Weather Service Melbourne FL 420 AM EST Fri Dec 25 2020 .DISCUSSION... ...It`s Beginning to Feel a Lot Like Christmas(weatherwise)... ...Wind Chill Advisory Early This Morning Osceola/Brevard North... ...Freeze Warning Tonight From Orlando-Cape Canaveral North Current...Low pressure currently positioned over the NJ/PA area will lift northward through daybreak. Meanwhile, the associated cold front will continue to push southward through the local area, clearing the Treasure Coast early this morning. While the shower band is still producing gusty conditions as it moves through, the threat for any higher wind gusts or lightning has diminished. However, temperatures continue to plummet behind the front. As of 330am, temperatures have fallen into the low to mid 40s from Melbourne northward. A Wind Chill Advisory is now in effect until 8am. Today-Tonight...High pressure rapidly building across the Deep South/northern Gulf Coast today will keep brisk northwest winds in place today around 10 to 15mph and up to 15 to 20mph at times. With stout northwesterly flow, temperatures will struggle to reach the mid 50s across much of the area this afternoon. Highs in the low to mid 50s, except for the immediate and southern Treasure Coast, which will stretch into the upper 50s. This will make for a chilly Christmas Day, likely the coldest since the mid 1990s! Dry conditions developing and clearing skies behind the FROPA, with PWATs falling to as low as 0.2-0.25" this afternoon. Not only will it be a brisk afternoon, tonight will also be the coldest night of the season so far under clear skies. Previous Freeze Watches for Lake and Volusia Counties have been upgraded to Freeze Warnings, as temperatures are expected to fall to as low as the upper 20s for around 5 to 7 hours. Additionally, Freeze Warnings have been posted for Orange, Seminole, and northern Brevard Counties, as temperatures in the low 30s are expected for around 4 to 6 hours. Near freezing temperatures will be possible as far south as northern Okeechobee County; however, timing of the coldest temperatures looks to be slightly less than the necessary 2 hours. This will be monitored for future updates. Patchy frost will be possible in prone areas, but with very dry conditions and forecast winds largely remaining above 5mph, will forgo mention of it in the forecast at this time. Next, wind chills as low as the mid 20s are expected overnight, with upper 20s along the Treasure Coast. While winds will likely be too high for mentionable frost, currently they are not forecast to be high enough for a Wind Chill Advisory. Nonetheless, temperatures will be well below normal and those with sensitive plants, pets, and pipes should take the necessary steps to protect them from freezing temperatures. This weekend...A lingering broad short wave trough will drop SE across the SE CONUS, GOMEX and Florida Sat-Sun. At the surface, strong high pressure over the SE CONUS will build NE along the eastern U.S. seaboard and into the western Atlantic. Global model guidance unanimous in showing the mid level short wave inducing a weak inverted trough along the SEFL coast Sat night through Sun night, which may enhance shallow moisture/convergence enough to produce a few light rain showers near its axis. Have split the difference between the lower NBM/higher Superblend POPs, showing a slight chance for showers along the Treasure Coast Sat night-Sun, and as far north as the Cape Sun night. After a frigid start to Sat, max temps will only reach the L-M50s north-central and U50s-60F along the Treasure Coast. Wide range in mins Sat night, ranging from near 335F north interior to L50s for coastal Martin County. A few spots near Lake George-Ocala Forest could briefly reach close to freezing again. Onshore NE-ENE flow Sun will result in much warmer/milder temps, with maxes 65-70F and mins ranging from M-U40s NW of I-4 to M-U50s along the Treasure Coast. Next Week...Mid level short wave ridge will build from the GOMEX across the SE CONUS and Florida through mid week, followed by another strong short wave trough passage late Thu. At the surface, the post-frontal high NE of Florida Mon will get reinforced by another strong surface high Tue-Tue night, which keeps moderate onshore flow and mild/warming temps in place. The high moves east Wed, leading to a an even warmer day-night, with breezy southerly flow ahead of the next strong cold front, progged to pass through ECFL Thu (ECM) or Thu night (GFS/CMC). There is the potential for thunderstorms ahead of this next front as well. Assuming the forecast comes to fruition, warming trend will result in increasingly above normal temps through Thu, followed by cooler weather to start off 2021. Happy Holidays to all! |
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