"But seeing they could not See; hearing they could not Hear"
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"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".

Sunday, November 28, 2010

1000 Feet With a Front Overhead

RECAP: The cold front manage to slide through the peninsula yesterday for the most part right at the surface level, but just a 1000 feet aloft where winds parallel the jet stream the front remains at this time directly over Central Florida. You can see from the attached images that the dew point temperature gradient is pretty steep with upper 20s - mid 30s in actual temperature over the panhandle and 70s over the south. Our morning low along the coast was in the mid 60s and warmer than inland around Orlando. Most pronounced is the graphic showing the drier air to the north. The sounding shows how the winds aloft switch almost right overhead at 9500 feet. and that it is within a below that critical point where most of the moisture resides.

TODAY: Front aloft will remain nearly in place as the parent low pressure system well off to the NNW\E moves away from the United States. The front will pull off to the east and weaken as a strong but fast moving high pressure zone moves toward the Carolinas to our north, placing the state in an ENE-E wind regime of the somewhat moist type due to mixing.

The result will be a relatively moist air mass being advected into the coast from the east ...partly due to mixing of differential moisture boundaries aloft and the temperature of the warmer ocean waters from hence the wind will blow. Partly cloudy to sometime cloudy and maybe even some showers after 2:00pm.

MONDAY-TUESDAY: Much the same as winds veer more ESE - SE on Tuesday and the boundary pulls away. Another, stronger front will be on the way for Wednesday morning. But until that time arrives, the state will remain with a chance of rain showers more likely on Tuesday than today or Monday. Moderated afternoon and evening temperatures due to the ocean's influence combined will clouds will keep the east coast within a 10 degree range of variability between morning lows and afternoon highs. Showers off and on, some could be moderate by later Monday or Tuesday.

WEDNESDAY - THURSDAY: The front will be at the door around sunrise Wednesday and will clear Central Florida by late afternoon. Rain chances until the front gets south of about Vero Beach will remain...after which, by late Wednesday the clouds will break as temperatures remain cool. Wednesday may see little change between the temperature at sunrise versus that which it will attain by 2pm. So far, it does not look like this next cold front will be all too bad, but we'll know it as morning sweaters and evening jackets will fit the apparent, apparel bill well.

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