Thursday, April 20, 2017

UPDATED MIAMI AND VICINITY FORECAST



Tonight Apr 20, 2017
Partly cloudy:  Lows around 72°F.  East wind to 14 MPH.

Friday Apr 21
Partly cloudy during the day:  Highs around 82°F.  East wind 8 to 14 MPH.

Partly cloudy during the night:  Lows around 72°F.  East wind to 11 MPH.

Saturday Apr 22
Partly cloudy with isolated showers during the day:  Highs around 82°F.  East southeast wind to 13 MPH.

Partly cloudy with scattered showers night:  Lows around 73°F.  East southeast wind to 11 MPH.  Chance of rain 40 percent.

Sunday Apr 23
Partly cloudy with scattered showers during the day: Highs around 82°F. Southeast wind to 10 MPH. Chance of rain 50 percent.

Partly cloudy with scattered showers during the night:  Lows around 73°F. South wind to 9 MPH. Chance of rain 50 percent.

Monday Apr 24
Partly cloudy with scattered showers during the day:  Highs around 84°F.  West northwest wind to 12 MPH.  Chance of rain 40 percent.

Partly cloudy with scattered showers during the night:  Lows around 70°F.  West wind to 13 MPH.  Chance of rain 30 percent.

Tuesday Apr 25
Mostly sunny during the day:  Highs around 82°F.  Northwest wind to 9 MPH.

Mostly clear during the night: Lows around 70°F.  West southwest wind to 9 MPH.

Wednesday Apr 26
Mostly sunny during the day:  Highs around 82°F.  West wind to 5 MPH, gusting to 10 MPH.

Mostly clear during the night:  Lows around 73°F.  South wind to 6 MPH.

 FORECAST MAPS ARE COURTESY OF THE N.W.S. IN MIAMI FLORIDA







FREAK OF NATURE ARLENE FORMS IN COLD ATLANTIC WATERS

Here is the storm map models and track!

 

TO ME THIS IS NOT NORMAL TO SEE SUB-TROPICAL TURN TROPICAL IN 19°C TEMPS

Hmm... this satellite imagery shows a better overall cloud pattern tropical not sub-tropical and just check this system has transitions to a tropical depression in 19°C sea surface temps. Geo-Storm or what, it makes you wonder. There are no logic's behind this, when these tropical systems are defying all meteorological standards of a tropical system development in an unfavorable environment. You can almost begin to name this one since it has an eye like feature.

NHC says "This transition is a common process..." I say yes it would be to see a sub-tropical system turn tropical in nature, but not in 19°C seas surface temps. This is not a normal transition folks.  19°C = 66.2°F...Tropical.

Wiki:
There are six main requirements for tropical cyclogenesis: sufficiently warm sea surface temperatures, atmospheric instability, high humidity in the lower to middle levels of the troposphere, enough Coriolis force to develop a low pressure center, a preexisting low level focus or disturbance, and low vertical wind shear.

Normally, an ocean temperature of 26.5 °C (79.7 °F) spanning through at least a 50-metre depth is considered the minimum to maintain the special mesocyclone that is the tropical cyclone.[3] These warm waters are needed to maintain the warm core that fuels tropical systems. This value is well above 16.1 °C (60.9 °F), the global average surface temperature of the oceans.


TROPICAL DEPRESSION ONE DISSIPATING AS IT MERGES WITH STRONGER LOW

TROPICAL DEPRESSION ONE IS GRADUALLY LOSING SUB-TROPICAL CHARACTERISTICS AS IT MERGES WITH AN EXTRA-TROPICAL LOW MUCH STRONGER THAN THE DEPRESSION. DISSIPATING RATHER FAST AND WE MAY SEE THE LAST ADVISORY ISSUED TONIGHT OR TOMORROW MORNING.
RTW

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