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July Disc/obs 2021


George BM
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Mount Holly AFD on the long range-

Overview... Synoptically, a consistent upper level pattern will be in place for the long term. Broad, strong ridging remains centered over the Intermountain West, with troughing over New England. This places our region in the belt of mid-level northwesterly flow between these features. Surface flow will also favor a westerly direction, which will mostly keep the oppressively high humidity away from the region. However, the temperatures themselves remain near to above average, due to the effects of the upstream ridging and efficient surface heating thanks to some downsloping effects with the westerly flow. Regarding rain chances, next week should feature plenty of dry hours, but will probably not be without its shower and storm chances as well. Unlike what we`ve seen most of the month, this pattern of relatively lower dew points and faster flow aloft is not very conducive to heavy rain and flash flooding. However, with that faster mid-level flow, the passage of multiple weak frontal systems and/or fast-moving mid-level impulses is possible. This should continue to bring at least sporadic opportunities for convection. This flow regime is also a classic example of what`s sometimes referred to as the "ring of fire". Severe, long-lived mesoscale convective systems can occasionally propagate from the Midwest to the East Coast in these patterns, often occurring with poor predictability more than a day or two out. With this pattern looking to be locked in place for awhile, this will be something to keep an eye on.

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EPS d10-15 pattern is one we’d love for winter. Mt Holly’s point about possible long track MCS events is well taken with that look. Probably some hot days, but could also be some brief fall preview type days after cold fronts.

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18 hours ago, MN Transplant said:

The 12z GFS was something else.  Even though something like this (closed 600 dm near STL) is unlikely, it is going to be interesting if some of the heat that has moved over to the Northern Plains does finally eject this way sometime in August.

1244263399_Screenshot2021-07-22164308.thumb.jpg.f7775f8f6d8bab5d60e7d5abd7c687f0.jpg

 

 

43 minutes ago, WxUSAF said:

EPS d10-15 pattern is one we’d love for winter. Mt Holly’s point about possible long track MCS events is well taken with that look. Probably some hot days, but could also be some brief fall preview type days after cold fronts.

Yea the EPS and OP GFS is MCS/ climo for sure. Would be nice to bake for a few days, this summer has been too cold, but hey, maybe that's a sign we're gonna have some good blocking setting up this winter?

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I suspect the same pattern that's keeping our summer mild will keep winter mild too!  Texas will be freezing below zero while we have rain and 33...

Late July 55F dewpoints?  In the past we'd have to pay toll for such comfort in the form of severe weather or even a derecho.  The smoke wasn't too bad other than the milky orange appearance.  Nothing like the eastern Canada fires in 2002.  Those actually smoked up this way real good like the fire was in OUR woods!  It takes a lot to bother my lungs and that one was tiresome.

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1 hour ago, CAPE said:

Another fantastic morning. 59 here.

Dews start to creep up a bit today, but still should be very nice for Late July.

 

Going on a walk soon.   Simply awesome ! 

Garden doing well too.  Many tomatoes are ripening on the vines.  So far a nice mix of cold fronts since late May. Maybe Sunday night we score with more rain after the miss I had last week.  Believe you got .25 inches , maybe more.  

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3 hours ago, WxUSAF said:

Going to OCMD Wednesday night through the weekend and weather looks fantastic right now.

Gonna have to watch this trough dropping in from eastern Canada on the periphery of the strengthening/expanding upper ridge out west. Things could turn more active late week with h5 disturbances rolling through in the NW flow. No washout but definitely some storm chances. Have to watch the MCS potential. CMC kinda hinting.

gfs_z500a_us_17.png

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