"But seeing they could not See; hearing they could not Hear"
“The views expressed herein are those of the author and do not necessarily represent those of the National Weather Service or affiliate/related organizations. Please consult .gov sites for official information”

"From its chamber comes the whirlwind, and cold from the scattering winds." - Job 37:9.

"The wind blows to the south and turns to the north; round and round it goes, ever returning on its course".

Wednesday, November 25, 2009

Expected Flights Today?...Possible Delay

(latest radar showing widespread rain, as WeatherKitty looks on).
The rain is finally arriving, with no surprise. The biggest challenge for today was figuring whether or not there could be strong/severe storms. Some storms, namely those off shore, have exhibited some weak rotation but not enough to induce a tornado. I think this will be the case for the day as well (at least over the land areas)...with anything stronger than a generic thunderstorm to be extremely isolated. I'll be looking into this more after returning from a morning shopping be advised things could change. Regardless, as you can see by the radar depiction, we have a broad expanse of precipitation covering much of the state. I woke up for a bit around 4 am and the stars were out and there was no rain anywhere nearby except over extreme South Florida, especially over the Keys. My what a difference 5 hours makes.

Don't have time to elaborate much today, but that's okay because nothing really has changed as far as today's outlook goes and as was posted a good two days ago both rain and temperature wise. Expect all of today to have a very respectable chance of rain as I believe the warm frontal boundary will not push north of us but rather reside just over to just south of us. I noted on running a radar animation (loop) that the precipitation is generally moving due north at a pretty good clip which initially lead me to believe the front would push right on through...but high pressure nosing down the spine of the state from the north appears as if it will hold fast and thus block the front from getting north of us (at least at ground level). As a result, we never see a good south wind (which would occur if the warm front were to push north of us)..but instead the wind will be a function of that high pressure area and its clockwise circulation..hence they should remain pretty much out of the east to east- northeast. This is what also leads me to believe that a better chance of thunder will be restricted to the southern tier of the state where southerly wind will work their way to the surface in earnest.

There does not appear to be any one, well defined low pressure system with this mish mash..but rather several smaller weak ones. One appears to be just off the coast of Sarasota...another one just to the NW of Key West..and another seems to be forming along an old inverted trough just to the east of Cape Canaveral - - all of which, when combined, forms a broad area of low pressure across the southern half of the state (and it's here that the most active weather will occur today). The northern periphery of this low pressure area defines the warm front's boundary (at least thermodynamically speaking).

As for Thanksgiving? Right now I'm tempted to reflect back on Monday's post, namely that we could still see some light rain around very early in the day with cloudy skies the rest of the day with the first peak of sun potentially showing its face right near sunset. Temperatures will be comfortable (in the low - mid 70s all day) the real cold front will not be punching through until shortly before sunset. And Friday? Again, continuing the same train of thought temperature wise. Namely, the warmest part of the day could very well be in the morning with temperatures dropping a bit the during the pre-noon hour, then holding steady and very breezy as much cooler/cold air is advected into the region under max heating of the day. The fact that the sun will be out on Friday and that the air is trying to warm us at the same time cold air is being shoved in alone will generate a lot of 'mixing' and enhance the surface northwest winds. Saturday and Sunday should be no worse than scattered high clouds and very cool by standards of late with cold mornings and tolerable afternoons with a notable decrease in the wind as day breaks Saturday.

Also keeping in line with the past few days, the warming trend will commence Sunday night into Monday morning as we regain our easterly wind component and marine air is nudged onto the coastal communities overnight.

Things happen fast from Monday to Wednesday as a "Southern Belle" Storm blossoms and moves east across the Deep South with yet another trailing cold front to sweep through which at this time looks like it will be early afternoon Tuesday. Rain with this system appears as though it will be restricted to Tuesday only. At this time, watching for developing of a pre-frontal trough which would pass through a good 3-5 hours before the actually cold front, and it's along that trough we'll be watching for decent thunderstorms beginning the post-dawn hours of Tuesday. But one good thing for a quick blurp, looks like we're going to avoid the coldest of air associated with this system too...courtesy of the ever present subtropical southern branch jet stream which has already been elaborated on in length in previous posts. Until that digs south of us..and then the northern branch digs south of us as well..we'll never get below 45 along the coast (for the most part). And that occurring is no where in sight.

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