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Remnants of Emily Part II: 295 Miles SSE Of Cape Hatteras, NC


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http://philstropical...-next-few-days/

My thoughts on the Remnants of Emily... I think its likely to redevelop into a tropical cyclone in the next 48 hours under very favorable conditions, although it will take some time to get the llc to re-consolidate. As you can see from the visible loop below there are multiple areas of rotation although the main broad rotation is occurring close to the Cuban coastline.

vis1.gif

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http://philstropical...-next-few-days/

My thoughts on the Remnants of Emily... I think its likely to redevelop into a tropical cyclone in the next 48 hours under very favorable conditions, although it will take some time to get the llc to re-consolidate. As you can see from the visible loop below there are multiple areas of rotation although the main broad rotation is occurring close to the Cuban coastline.

The best low level rotation is occurring between Cuba and Andros island, which has little convection right now, though is on the increase.

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It will be interesting to watch the evolution of these remnants over the next couple of days. It appears as though the main area of broad low level rotation is just north of the central Cuban coast line:

post-525-0-26488100-1312566824.jpg

However, there appear to be two areas of enhanced vorticity among a larger area of broad vorticity. One under the old mid level vortex, and one associated with the broad surface circulation:

post-525-0-99350000-1312566909.gif

My guess is the center relocates closer to or under the mid level vortex and results in a recurve out to sea possibly as a moderate tropical storm, however if this can not occur we will probably see a weak surface low or sharp trough move into southern Florida in 1-2 days.

Shear continues to relax north of Emily which favors some re-intensification should a more defined surface circulation form near convection:

post-525-0-35088700-1312567078.gif

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The best low level rotation is occurring between Cuba and Andros island, which has little convection right now, though is on the increase.

Yep, that is what am seeing too. As convection continues to pulse it will be interesting to see if this rotation continues to drift westward, or if it will start to be captured by the convection and stall out, allowing for development over the center.

NHC stayed with 60% at 2pm, but I imagine if we get any more increase in the convection, that probability will start rising given the amount of rotation exhibited already.

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http://philstropical...-next-few-days/

My thoughts on the Remnants of Emily... I think its likely to redevelop into a tropical cyclone in the next 48 hours under very favorable conditions, although it will take some time to get the llc to re-consolidate. As you can see from the visible loop below there are multiple areas of rotation although the main broad rotation is occurring close to the Cuban coastline.

vis1.gif

Phil,

You call conditions favorable over the next 48 hours, but I see a lot of S and SW shear in that photo. When will that relax?

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Yep, that is what am seeing too. As convection continues to pulse it will be interesting to see if this rotation continues to drift westward, or if it will start to be captured by the convection and stall out, allowing for development over the center.

NHC stayed with 60% at 2pm, but I imagine if we get any more increase in the convection, that probability will start rising given the amount of rotation exhibited already.

The rotation east of the Central Bahamas is getting better defined and is more vigorous, though the near Cuba one has a little better upper level support.

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Wow. That graphic implies that the moderate westerly shear this system is experiencing will become harsher easterly shear sometime soon. If this system is going to redevelop, those winds need to decrease a good 20 knots. Once the satellite imagery stops implying that a severe thunderstorm/tornadic waterspout is in the Florida Straits, it could be worth paying attention to once more. As long as it remains close to the United States, some of us don't have a choice but to watch it until it moves away.

Almost immediately... its taking place right now as the flow shifts more easterly.

4rp5r4.gif

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Wow. That graphic implies that the moderate westerly shear this system is experiencing will become harsher easterly shear sometime soon. If this system is going to redevelop, those winds need to decrease a good 20 knots. Once the satellite imagery stops implying that a severe thunderstorm/tornadic waterspout is in the Florida Straits, it could be worth paying attention to once more. As long as it remains close to the United States, some of us don't have a choice but to watch it until it moves away.

The flow closer to the broad rotation is much lighter, and the low level flow is also rather brisk easterly near where you see the stronger easterly upper level flow, so the shear is still relatively light.

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fjkx8h.gif

1. SATELLITE IMAGES...SURFACE OBSERVATIONS...AND RADAR DATA FROM CUBAINDICATE THE REMNANT LOW PRESSURE SYSTEM OF FORMER TROPICAL STORMEMILY HAS REMAINED NEARLY STATIONARY ABOUT MIDWAY BETWEEN THECENTRAL BAHAMAS AND THE NORTH-CENTRAL COAST OF CUBA. THUNDERSTORMACTIVITY HAS INCREASED AND BECOME A LITTLE BETTER ORGANIZED NEARTHE SURFACE CENTER...AND UPPER-LEVEL WINDS ARE GRADUALLY BECOMINGMORE CONDUCIVE FOR A TROPICAL DEPRESSION TO FORM DURING THE NEXTDAY OR SO. THIS SYSTEM HAS A HIGH CHANCE...70 PERCENT...OFREGENERATING INTO A TROPICAL CYCLONE DURING THE NEXT 48 HOURS AS IT MOVES TOWARD THE NORTHWEST AT 10 MPH. AN AIR FORCE RESERVE UNITRECONNAISSANCE AIRCRAFT IS SCHEDULED TO INVESTIGATE THE LOW ONSATURDAY...IF NECESSARY. INTERESTS IN THE CENTRAL AND NORTHWESTERNBAHAMAS SHOULD MONITOR THE PROGRESS OF THIS SYSTEM. REGARDLESS OFDEVELOPMENT...THIS DISTURBANCE WILL PRODUCE GUSTY WINDS AND LOCALLYHEAVY RAINFALL OVER PORTIONS OF THE CENTRAL AND NORTHWESTERNBAHAMAS TONIGHT AND SATURDAY.

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Back down to 60%

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SATELLITE IMAGERY AND SURFACE OBSERVATIONS INDICATE THAT THETHUNDERSTORM ACTIVITY ASSOCIATED WITH THE REMNANTS OF TROPICALSTORM EMILY HAS CHANGED LITTLE IN ORGANIZATION DURING THE PASTSEVERAL HOURS. IN ADDITION...THE SURFACE WIND CIRCULATION HASBECOME LESS WELL DEFINED...AND THE SURFACE PRESSURES ARE RELATIVELYHIGH IN THE AREA.

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Emily is close to resurrecting... LLC is now under some decent convection. Position is probably just north of Andros island. Radar presentation is also decent.

Lots of good banding features on radar and they seem to be spinning about a well-defined center. It might be a tropical cyclone again already.

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Lots of good banding features on radar and they seem to be spinning about a well-defined center. It might be a tropical cyclone again already.

Surface obs suggest otherwise. 5-10 mph winds ain't no TC. Perhaps in a day or two while it's heading NE OTS.

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Nassau= 9kts from the SW @ 15Z

Freeport= 8kts from the N/NE @ 14Z

Exuma= 8kts from the S/SE @ 15:30Z

Exuma is way far from the center... Nassau and Freeport are hinting at a well defined circulation. Winds are probably higher somewhere in open sea.

Emily is coming back in less than 24 hours

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