Update on Hurricane Delta and Long Island weather:
Hurricane Delta has weakened since yesterday afternoon and now has maximum sustained winds of 115 mph (NHC saying this is generous as it is probably lower) and a minimum central pressure of 972 mb. It's moving NW at 17 mph. The HWRF model did a great job predicting this short-term weakening. It will be making landfall just south of Cancun in a couple of hours, which will cause some more weakening; however, it will re-intensify over the Gulf of Mexico to a minimal Cat 4. Some weakening is expected prior to landfall along the central (to perhaps west of central) Louisiana coast on Friday afternoon, but it will still be a very dangerous hurricane (strong Cat 2 or minimal Cat 3), and it will be a larger storm than it is presently. Rainfall amounts for the central Gulf coast are projected to be 4 to 8 inches with isolated totals up to 12 inches. There is no word on projected storm surge yet, but it will be life-threatening! Hurricane Watches will be issued today.
Long Island forecast:
Today: Mostly sunny in the morning and becoming increasingly windy in the afternoon with a 30% chance of a shower as the cold front comes through between around 4 PM and 7 PM. Highs in the mid 70's. A Wind Advisory is in effect from 2 PM to 2 AM for wind gusts as high as 50 mph. The wind will be out of the WSW to SW in the morning into mid-afternoon and then out of the WNW to NW from late afternoon into the night. Most of the higher gusts will be in the 35 to 45 mph range in the late afternoon and evening. Tomorrow: Mostly sunny and still breezy with highs mostly in the mid 60's and wind gusts in the 15 to 20 mph range. Friday: Mostly sunny with highs in the mid to upper 60's. Saturday: Partly cloudy with highs in the low 70's. Sunday: Partly to mostly cloudy with a 20% chance of a shower by evening. Highs in the upper 60's. Monday: 30% chance of rain, depending on the track of the remnants of Hurricane Delta. Highs in the mid 60's.
- 1st image: Official forecast map for Hurricane Delta from the National Hurricane Center
- 2nd image: IR satellite view of Hurricane Delta
- 3rd image: Projected location and wind speed at 2 PM Friday from the HWRF model
- 4th image: Projected rainfall for the next 5 days from the Weather Prediction Center
- 5th image: Maximum projected wind gusts through 8 PM Friday from the National Weather Service
- 6th image: Projected temperatures for Long Island for the next 10 days from the National Weather Service model blend