Thursday, July 29th, 2010

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Saturday – Hourly Updates on Hurricane Bill

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ABC6 Stormtracker Chief Meteorologist Fred Campagna has hourly updates on Hurricane Bill as it moves east of New England Saturday. Hurricane Bill is accelerating to the north, and will likely pass within 200 miles of Nantucket Saturday night. Check in throughout the day and evening for constant updates on Bill’s position, strength, track, and local impact.

Midnight
In honor of Bruce Springsteen, I’ll come out for an encore…

I just stepped outside for a minute after getting home. I wanted to experience just a small bit of this storm that I’ve spent almost every waking hour tracking for the past week. Of course, in Bristol, the effects are fringe at best, but there was a light breeze and some “misty rain” – another nod to Springsteen.

The rain band across the lower Cape is pretty impressive. It’s crossing the Canal into Buzzards Bay and SE MA. It may make it into RI overnight. Any Bill-related rain will be gone from the Cape by mid-morning tomorrow.

The wind will peak between now and 8AM on the Cape and Islands. It won’t be very impressive. Probably a few gusts over 30 mph.

For anyone who wants to turn the page in a hurry, there may be another storm brewing in the Western Atlantic by midweek. A disturbance will move through the northern Caribbean islands, and some models show a tropical system developing a bit west of where Bill was a few days ago.

11PM
Update on ABC6 News!

20-25 ft seas SE of Nantucket. Wind gusting over 30 mph on Nantucket, to about 45 mph 50 miles southeast of Nantucket.

Heavy, but thin, rain band over the Cape and Martha’s Vineyard.

Thanks for following the storm with me all day. It’s been a fun ride forecasting the storm, and then watching it evolve today. As always, it was a great learning experience, and hopefully next time the forecast will be even more accurate.

10PM
Water was up to the base of the boardwalk at Scarborough Beach in Narragansett at the time of high tide this evening. Tides are running astronomically high this week. There will probably be some minor flooding in a few spots on the Cape/Islands.

Minimal wind influence from Bill so far. Winds on the Cape/Islands are 12-25 mph at all land stations. The Nantucket buoy is gusting to 31 mph, and that buoy 55 miles south of Nantucket is seeing 40+ mph wind gusts.

The wave observations are really getting up there. The buoy south of Nantucket is up to 25 feet, and a buoy south of Long Island is reporting 21 foot waves.

There is a rain band across Buzzards Bay. You can track it using the interactive Stormtracker Radar on ABC6Hurricane.com.

Make sure "Storm Tracks" is checked, then click on the thunderstorm icon

Make sure "Storm Tracks" is checked, then click on the thunderstorm icon

9PM
Thin band of rain from the Cape through Martha’s Vineyard. During the afternoon and early evening, most of these bands had a hard time holding together as they moved west.

Heaviest rain band of the day is developing about 75 miles south of Nantucket. It’ll be interesting to see if it can spin back into Nantucket and the Cape. Short-range computer model says no, but I’m not convinced.

Hourly observations have not changed much. Still 36 mph gusts and 22 foot waves 55 miles south of Nantucket.

8PM
Wind, rain, and waves continue to pick up just south-southeast of Nantucket. Buoy observation of 22 ft. waves 54 NM SSE of Nantucket. Watch the video update for more.

7:30PM
Bill 250 miles SSE of Nantucket. Max winds still 85 mph. Moving north (360°) at 24 mph.

7PM
Seas now 12-16′ at offshore buoys. Wind gusting to 36 mph at buoy 54NM SSE of Nantucket. Nantucket gusting to 23 mph. Bill is cruising right along. It looks like a rain band is spinning off the storm and will flirt with the Cape and Nantucket.

There are currently no t-storms in Southeastern New England.

Bruce Springsteen & the E Street Band take the stage at the Comcast Center in about 15 minutes. Wish I was there, but very happy that I’ll be there tomorrow night!

6PM
Full coverage on ABC6 News!

4:30PM

Latest on Bill:
37.1N 68.8W (300 miles SSE of Nantucket)
N at 24 mph
Winds are down to 85 mph

The storm should cruise by tonight. It will be accelerating away from us tomorrow morning. Squally weather still possible tonight on the Cape/Islands. Storm should be about 150 miles from Nantucket at about 2AM.

3:30PM
Bill is starting to veer a bit east of north as he picks up a bit of forward speed. Rain bands should continue to spin into the Cape and Islands this evening. Bill will be north of SNE by dawn tomorrow.

I’m heading into work. Another update in about an hour.

2:30 PM
Rain band has reached Nantucket. Band continues to move through Nantucket Sound and may hit the Lower Cape by 3PM. Elsewhere in Southern New England, it’s more of the same – partly sunny, warm, and very muggy. FYI – the temperature at TF Green has not been below 69° since Sunday! The last five days have average about 10° above normal.

Seas are now 8-12′ off the coast. The wind at the buoys is not too impressive, with 20 mph being reported at the buoy 54 miles southeast of Nantucket.

Satellite imagery suggests that Bill has gotten as far west as it is going to. It got to just about 69W.

Once again, minimal, if any, impact in RI aside from the surf. Rain showers tonight, chance of gusts over 40 mph, on the Cape, Vineyard, and especially Nantucket.

1:30PM
Bill appears to be moving just west of the projected track. Probably not far enough west for an impact in RI, but conditions on the Cape/Islands will probably deteriorate by late afternoon. It doesn’t look like the Cape/Islands will experience sustained Tropical Storm force winds, but some gusts over 40 mph are possible. There is a band of rain just a few miles from Nantucket. It should arrive about 2PM.

Right now, it’s 84° in Providence, but it feels like 92° because of the oppressive humidity. The “precipitable water” content is very high today. Any shower should contain torrential downpours. A t-storm north of Boston today produced about 2″ of rain in an hour.

Buoy observations are still 8-10′ with easterly winds beginning to take over as Bill makes its presence known.

2PM update on Bill is due soon. You’ll be able to see it on the interactive Stormtracker on the home page.

12PM
Bill isn’t looking too shabby on satellite right now. The center is at 69W and 35.5N. This is the best Bill has looked in the last 12 hours. The storm will be over very warm water for the rest of the day, so some strengthening is possible.

Outer-most band is within two hours of Nantucket if it continues at its current pace. Seas are still 9-11 ft offshore.

Bill is going to bring rain and some wind to the Cape/Islands. The worst will definitely be on Nantucket.

Here is a reliable computer projection for late this evening:

The heavy rain from Bill gets very close to Nantucket and the lower Cape.

The heavy rain from Bill gets very close to Nantucket and the lower Cape.

Still typing…

11AM
Bill appears to be coming around the bend on the satellite imagery. The storm is almost to 69W and is crossing 35N. Motion at 11AM was a hair west of north (355°) at 20 kt. A gradual turn to the NNE is expected in the next 12 hours. Max. sustained winds are 100 mph. Probability of tropical storm winds has been dropped to 32% for Nantucket.

An outer band is visible on the Stormtracker radar loop. This band may reach Nantucket by mid-afternoon.

A lot of instability exists overhead today, so pop-up showers and t-storms are likely throughout RI and SE MA. Some of the storms could be on the strong side.

Latest buoy data showing 10 ft. seas just to our south.

Seas were building off the south coast at 11AM

Seas were building off the south coast at 11AM

10AM
Bill is showing some giddy-up this morning as he has begun his move due north at about 22 mph. Maximum sustained winds are still 105 mph. The storm is enormous, with tropical storm winds (40mph) extending an amazing 275 miles from the center. The National Hurricane Center has placed the coast of SE MA in a Tropical Storm Warning.
There is a 40% chance of tropical storm-force winds on Nantucket, and a 5% chance of sustained winds over 50 kts.

- - - - WIND SPEED PROBABILITIES FOR SELECTED  LOCATIONS - - - -  

               FROM    FROM    FROM    FROM    FROM    FROM    FROM
  TIME       06Z SAT 18Z SAT 06Z SUN 18Z SUN 06Z MON 06Z TUE 06Z WED
PERIODS         TO      TO      TO      TO      TO      TO      TO
             18Z SAT 06Z SUN 18Z SUN 06Z MON 06Z TUE 06Z WED 06Z THU

FORECAST HOUR    (12)   (24)    (36)    (48)    (72)    (96)   (120)
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
LOCATION       KT
HYANNIS MA     34  X  26(26)   3(29)   X(29)   X(29)   X(29)   X(29)
NANTUCKET MA   34  1  37(38)   2(40)   X(40)   X(40)   X(40)   X(40)
NANTUCKET MA   50  X   4( 4)   1( 5)   X( 5)   X( 5)   X( 5)   X( 5)
PROVIDENCE RI  34  X  12(12)   2(14)   X(14)   X(14)   X(14)   X(14)

Seas are quickly building to about 10 ft. at the buoys south of Nantucket and Long Island. The wind is swinging around to ESE at some of the offshore buoys. Click here for the ABC6 Hurricane Buoy Reports.

Scattered showers and t-storms are showing up over Southern New England this morning. These are not directly related to Bill, but some heavy t-storms are possible in the incredibly humid airmass overhead.

Another update just after 11AM.

Comments

2 Responses to “Saturday – Hourly Updates on Hurricane Bill”
  1. Thomas Ratte says:

    when will the highest wave’s will be from bill?

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