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PTC Matthew


PaEasternWX

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2 minutes ago, DoctorMu said:

 

The eyewall will contact Cape Canaveral if the current vector continues, imo

I agree the western eyewall might make it to Cape Canaveral, but it'll be a race between that and the ridge orientation nudging it east. And the western eyewall won't be anything like the north or east eyewall. 

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Just now, pcbjr said:

so still no nhc active link here- Question : as of 11:00 is he more off shore and weakening?

Not weakening, but doesn't appear to be strengthening either. The nearly constant (for several hours) bizarre inner-structure of Matthew with concentric eye walls has halted any potential strengthening it appears. 

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1 minute ago, jojo762 said:

Not weakening, but doesn't appear to be strengthening either. The nearly constant (for several hours) bizarre inner-structure of Matthew with concentric eye walls has halted any potential strengthening it appears. 

It's not bizarre, it's super common in intense, mature tropical cyclones.  

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FL hurricane-force wind field has definitely expanded N/E. Gotta wonder where all the energy is going with the pressure being sub-940... 

Note: This might not be 100% accurate, but generally appears the the outer eye-wall is beginning to fill in more with stronger convection/radar returns, which may finally choke off the inner eye-wall. 

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Some of the more solid rain bands and probable sustained TS with high end TS/ Cat 1 gusts are starting to move into the region of shoreline between Vero and Palm Beaches.

Tracking this elaborate dance of the inner and outer eyewalls has been fascinating if not maddening on radar. KMLB and KAMX radars are about 175 miles apart and the center of Matthew lies smack in between them offshore currently. It will get better as the night goes on as the hurricane tracks towards Melbourne (MLB) but right now the beams from both radars are hitting the inner eye at roughly 10-14k feet. Looking at velocities of stuff coming in towards Vero to Jupiter region is interrupted by velocities changing from toward to away due to the storm's trajectory. But can see enough to deduce that conditions are likely really headed downhill in that area...alot of 40-60+knot velocities either side that would easily get mixed down in the embedded stronger cells/bands. 

Also noteworthy, the double wind maxima in the NE quadrant is evident on Melbourne's radar with two areas of 95-105 knots at about the 9-10k feet level.

2016-10-06_2322.png

 

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6 minutes ago, jojo762 said:

FL hurricane-force wind field has definitely expanded N/E. Gotta wonder where all the energy is going with the pressure being sub-940... 

Note: This might not be 100% accurate, but generally appears the the outer eye-wall is beginning to fill in more with stronger convection/radar returns, which may finally choke off the inner eye-wall. 

Yes, it appears to be accurate. FL winds in the OEW are now 108kts+ on the NE quad, which is impressive.

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03z (11 pm) max gusts on land in FL __ 52 mph at Melbourne.

Coastal and offshore buoys in 40-50 knot range. 

When the NHC was up I noticed that the 12z predicted position was almost identical to buoy 41009 just offshore Cape Canaveral. 

RGEM has track 10-30 miles off coast, continues with the loop theme at 48h. CMC analysis showed 570 dm 500-mb low over Matthew's position at 00z.

12h prog for that was 569 dm.

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5 minutes ago, jojo762 said:

FL hurricane-force wind field has definitely expanded N/E. Gotta wonder where all the energy is going with the pressure being sub-940... 

Note: This might not be 100% accurate, but generally appears the the outer eye-wall is beginning to fill in more with stronger convection/radar returns, which may finally choke off the inner eye-wall. 

As of 00Z Matthew's integrated kinetic energy has actually been increasing throughout the day even though the maximum speed of the surface winds hasn't changed much. Matthew's power output is going into moving more parcels at faster speeds overall instead of increasing the speeds of the fewer parcels that were already fast to begin with. A broadening of the wind field would be an expected response in this situation.

wXVuVTq.gif

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2 minutes ago, Roger Smith said:

03z (11 pm) max gusts on land in FL __ 52 mph at Melbourne.

Coastal and offshore buoys in 40-50 knot range. 

When the NHC was up I noticed that the 12z predicted position was almost identical to buoy 41009 just offshore Cape Canaveral. 

RGEM has track 10-30 miles off coast, continues with the loop theme at 48h. CMC analysis showed 570 dm 500-mb low over Matthew's position at 00z.

12h prog for that was 569 dm.

There'll probably be hurricane force wind somewhere before the end, maybe Cocoa Beach/Cape Canaveral. The western outer eyewall band should still make it that far. 

Massive bullet dodged tonight (hopefully). The few dozen miles east of projections is doing the trick so far. 

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Basing off the vector from the most recent recon fixes, it is going to be a very close call for cape canaveral later this morning. Something near to or slightly under 100kts sustained should be expected (barring some unforeseen strengthening/weakening.)

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