20 September 2010

Igor passes close to Bermuda, new disturbance in eastern Atlantic...

Hurricane Igor made its closest to Bermuda right around midnight local time as forecast.  A peak wind of 81kts was reported on the island, and the minimum pressure at that time was 955mb.  The radar loop showing the approach is here: http://einstein.atmos.colostate.edu/~mcnoldy/tropics/igor10/Igor_19-20Sep10.gif (the radar and/or network was down on Bermuda as the eyewall neared, so the loop cuts off just prior to closest approach).
At 15Z today, the intensity was 65kts (minimal hurricane) and 960mb.  Tropical storm force winds extend 300 miles to the NE and NW of the center, and 12' seas extend out to 800 miles from the center in the southwest quadrant.  A tropical storm warning is now in effect for eastern Newfoundland, but by Tuesday morning, the long-lived (12 days) powerful hurricane will begin its extra-tropical transition as it merges with a mid-latitude trough.

The final advisories were written on Karl and Julia on Saturday 09Z and Monday 15Z, respectively.

The easterly wave that I mentioned on Friday has continued to get better organized and now has a 1007mb Low associated with it.  It's located about 450 miles west of the Cape Verde islands and drifting to the NW.  There's also an easterly wave right on the African coast.  Both of these will be watched closely, and the next names are Lisa and Matthew.

Please visit my tropical Atlantic headquarters.

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