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Hurricane Irene - Discussion V


Baroclinic Zone

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Yes jet dynamics are impressive but shear is shear and dry continental air always win out in decreasing a storm. Speed is too slow as well. If it intensifies it will be due to the dynamics and baroclinic features. Size really is insignificant it is all about how fast its moving

Unlike most storms we're not getting the thing picked up by a huge digging trough with its axis over the Apps. So the really strong southerly shear in a Gloria-esque storm isn't here. We're getting some enhancement from the right entrance region of a developing jet streak over northern NE. That makes me worried about flooding along and maybe even east of the storm track which is so unusual for a SNE cane.

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Unlike most storms we're not getting the thing picked up by a huge digging trough with its axis over the Apps. So the really strong southerly shear in a Gloria-esque storm isn't here. We're getting some enhancement from the right entrance region of a developing jet streak over northern NE. That makes me worried about flooding along and maybe even east of the storm track which is so unusual for a SNE cane.

Can you explain more?

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I believe Messenger's argument was no official sites reporting hurricane winds. Not sure if that's still true, but he consistently qualified his statement with that caveat.

Maybe, but I'm just breaking his balls a little. Nice to see this get more organized.

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Unlike most storms we're not getting the thing picked up by a huge digging trough with its axis over the Apps. So the really strong southerly shear in a Gloria-esque storm isn't here. We're getting some enhancement from the right entrance region of a developing jet streak over northern NE. That makes me worried about flooding along and maybe even east of the storm track which is so unusual for a SNE cane.

It does have a bit of a PRE look to it now though and SNE may get some sporadic heavy rainfall prior to the actual TC but still the heavy rain area will tend to pivot to the N and NW. The front that came thru like 2 days a go will be coming back north as a warm front so this may cause some predecessor rains. The jet RE enhancement will probably enhance the wind potential for areas east of the storm track. To me this jet setup has a very Ike-like look to it when Ike moved across the OV and PA and NY.

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Where'd you get this?

S2K, but my google earth also shows it

Time:16:34:00ZCoordinates:35.3167N 76.5WAcft. Static Air Press:723.7 mb (~ 21.37 inHg)Acft. Geopotential Hgt:2,361 meters (~ 7,746 feet)Extrap. Sfc. Press:947.3 mb (~ 27.97 inHg)D-value:-Flt. Lvl. Wind (30s):From 190° at 10 knots (From the S at ~ 11.5 mph)Air Temp:16.5°C* (~ 61.7°F*)Dew Pt:-*Peak (10s) Flt. Lvl. Wind:10 knots (~ 11.5 mph)SFMR Peak (10s) Sfc. Wind:-SFMR Rain Rate:-

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It does have a bit of a PRE look to it now though and SNE may get some sporadic heavy rainfall prior to the actual TC but still the heavy rain area will tend to pivot to the N and NW. The front that came thru like 2 days a go will be coming back north as a warm front so this may cause some predecessor rains. The jet RE enhancement will probably enhance the wind potential for areas east of the storm track. To me this jet setup has a very Ike-like look to it when Ike moved across the OV and PA and NY.

Yeah the LLJ has been really impressive on most guidance over SE New England. I def think the upper jet streak to the north enhances the pressure gradient on the east side a bit even as the tropical characteristics are losing punch.

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Yeah the LLJ has been really impressive on most guidance over SE New England. I def think the upper jet streak to the north enhances the pressure gradient on the east side a bit even as the tropical characteristics are losing punch.

Will, will the jet tend to maximize winds in CNE as well? especially east of the core.

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