• Sailing is all about the Weather.

    Big into the exploration of Atlantic Hurricanes since Katrina came uninvited into his world, James (Jim) Gurley (JamesG161) has followed every Tropical Storm birthed in Atlantic, Gulf and Caribbean waters since. Being a boater, he knows that we often need more time to prepare than we get from the TV weather folk. Jim relies on the science of storm development to share early warning info with friends and fellow boaters.

    Early in 2018, Jim and John Shepard, (JSSailem) started to chat about the weather data available. John asked Jim to help forecast Pacific NW storms, and this morphed into discussions on weather forecasting.

    For John, sailing in the PNW is sometimes hit and miss. One day is ugly, then a string of beautiful days but no wind, followed by a series of blue-sky days and 12 knot breezes. Being ready for those great sailing days means you need to look to the Pacific Ocean and what is brewing. John has been into Pacific NW Weather since the 1970’s when his first PNW November storm hit bringing more than 40 days and 40 nights of continual rain.

    Together we want to share information, new APPs, safety, and thoughts about letting the weather help you. Identify some of the resources for sailors and help prepare you for your next sailboat outing.

    It is far better to go out on the water knowing what to expect in weather terms, than to be out on the water and see dark ominous clouds suddenly appear, unprepared.

Hurricane Florence

Feb 14, 2014
7,421
Hunter 430 Waveland, MS
The first of the seasons West African Spinoff storms is now being INVESTigated and is expected to be a Hurricane in next 5 days.
It is expected to track into central Atlantic and not hit any land mass anytime soon.
_____
But...
There are several West African spinoffs coming soon.
____
Also a small tropical potential wave is starting near the Bahama's and will move across Florida quickly into the Gulf probably ruining part of the Labor Day weekend for the Northern Gulf. Moving fast, which is good.
Jim...
 
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Likes: Will Gilmore
Feb 14, 2014
7,421
Hunter 430 Waveland, MS
Now a new name by NOAA.
Potential Tropical Cyclone = PTC

Now the question will start.
What is a Cyclone?
Is it meaner than a Storm?
How much Potential?

Oh well it will soon be named
Whatever "Florence"

High Pressures moving East across Central USA will protect the East Coast from PTC#6
Jim...
 
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Likes: All U Get
Feb 14, 2014
7,421
Hunter 430 Waveland, MS
the term "SUPER cyclone"??
Sound more like a new Comic Book Super Hero name....

Look out for SUPER CYLONE... fighting all climate change and providing good sailing for all.
Jim...

PS: NOAA has used that name for a North Pole Super Cyclone that was HUGE in diameter, about 2 years ago.
 
Feb 14, 2014
7,421
Hunter 430 Waveland, MS
TS Florence may stall. She was trying to become an Atlantic Fish Storm.
The HIGH pressure front that was pushing the turn is now passing more Northerly and faster
______
The next HIGH form the Pacific is starting to move across the US now.
Timing is every thing to push Florence out to Mid Atlantic.
Jim...
 
Feb 14, 2014
7,421
Hunter 430 Waveland, MS
Timing is every thing to push Florence out to Mid Atlantic.
Hurricane Florence is on the move Westward, after the HIGH Pressure over the Atlantic moved East.
It will move into the LOW pressure trough, trailing behind.

Even though NOAA is tracking it, another Big HIGH pressure is going to change those models to push it toward the East Coast USA.
_____
Track FLORENCE closely!

Jim...

PS: Dont wait till next week to prepare.
 
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Likes: Will Gilmore
Feb 14, 2014
7,421
Hunter 430 Waveland, MS
Watch the north side High Pressure movement [East ≈ 12 mph] that is forcing Florence to turn West.
That timing is everything!
Also I will post the first Hurricane Hunter flight.
They will define the winds on the West Side of Florence.

Just like Gordon, that will be the key.
If you like spaghetti models, ECMF is the most verified accurate model.
Where Windy gets it information, NOAA.
–––––––
andfall Thursday @ Myrtle
That target forecast is not accurate at this time.
Look again on Sunday 9th.;)
______
Alway better to prepare NOW, than when "Windy" shows landfall on the 13th.:doh:

I just prepared and watched Coastal Mississippi "hunker down" for Gordon. After Camille and Katrina, no coaxing needed.
Jim...
 
Feb 14, 2014
7,421
Hunter 430 Waveland, MS
Sometimes called ECMWF is a combined group model that has verifications to continually improve. 50 contributing models. Each models is assigned various aspects of a forecast tracking. It is a Global weather event group.
Here is the latest tracking models. Note ECMF orange triangles.
https://apps.sfwmd.gov/sfwmd/common/images/weather/plots/storm_06.gif
Jim...

PS: After looking a various Florence info this morning. My best long term shot, which is admittedly weak, is TABD [Corrected]green triangles on that chart.
 
Last edited:
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Likes: rpludwig
May 23, 2016
1,024
Catalina 22 #12502 BSC
hmmm, I prefer the (unlikely) purple & orange squares!
guess it may be prudent to replace the broken trailer winch strap pronto!!
 
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Likes: JamesG161

Gunni

.
Mar 16, 2010
5,937
Beneteau 411 Oceanis Annapolis
Huh. The Euro model does show the track straightening out and coming ashore in the U.S. That wasn’t going on 24 hours ago. Need to start following this storm. Thanks Jim (Dammit).
 
Feb 14, 2014
7,421
Hunter 430 Waveland, MS
The real key is to watch the Eastward Movement speed of the HIGH pressure Front North of Florence.
If it moves faster, Florence will follow the LOW trough behind it and curve kinda like @rpludwig desired AEMN purple squares.

If the High Pressure East speed, slows way down, then ECMF is the most likely path, NOW.
Look again Sunday 9th.;)

But do like Gunni, go get batteries, flashlights, etc NOW, before Wally World sells out.
Jim...

PS: When the Hurricane Hunters fly out to Florence, will be the Key NOAA indication.
 
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Likes: rpludwig
May 23, 2016
1,024
Catalina 22 #12502 BSC
dammit Jim, we need warp speed on that high pressure system, talk to Scottie...lookin' a might bit bleak....water, batteries selling well here...boat gets pulled out tomorrow...(prudent).
 
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Likes: JamesG161
Feb 14, 2014
7,421
Hunter 430 Waveland, MS
This is my graphic on the HIGH pressure race to affect Florence.
RaceHigh.png

Timing of the HIGH over New Mexico for Florence and the Timing of the HIGH near El Paso TX for TD#9 [PTC#9]

Dammit Jim...
 
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Likes: Will Gilmore
May 23, 2016
1,024
Catalina 22 #12502 BSC
so, esp with those couple other hp systems on the march to the east, it will likely sustain it's westerly track, w/landfall 'tween Charleston & Wilmington? (albeit a bit early to predict this)...have kids in Wilmington prox....I'm in New Bern, 100 mi. north....interested in your take/expertise on this...(and lookin out for the kids, especially)...