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The official 2014 Summer Discussion Thread


Marion_NC_WX

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Big 3 like the idea of continued troughing in the east through mid-August

 

 

Euro proving once again why it's superior. GFS was showing ridge by 8/15 bringing the heat to the SE with a trough on the west coast.

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lol  Nice map icons.  But it seems as if someone didn't even notice.  It must be foggy down in the swamp.

 

Maybe the colors blended together too much. Hopefully, the swamp won't dry up with all of the lack of rain and extreme heat.

The GFS is a bad model.

Looking good, Jon. Every day gets us closer to the end of the potential for heat waves. Fall is coming! :)

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RAH says it's still coming. You can call us the Soggy Bottom Boys!

 

.LONG TERM /SATURDAY THROUGH WEDNESDAY/...
AS OF 245 PM WEDNESDAY...

...COOL AND SOGGY CONDITIONS EXPECTED OVER THE WEEKEND...

SATURDAY THROUGH SUNDAY: VERY SIMILAR TO LAST WEEKEND...A WARM
SEASON HYBRID CAD EVENT IS EXPECTED THROUGH THE WEEKEND AS SHORTWAVE
ENERGY IN WNW/NW FLOW ALOFT TRACKS ACROSS A DIABATICALLY
ENHANCED/REINFORCED FRONTAL ZONE OVER THE CAROLINAS. EXPECT DAYTIME
HIGHS WELL BELOW NORMAL WITH WIDESPREAD MODERATE TO HEAVY RAINFALL.

THE FINER FORECAST DETAILS SUCH AS QPF AMOUNTS AND THREAT OF
THUNDERSTORMS IS STILL DIFFICULT TO ASCERTAIN AT THIS TIME GIVEN
CONTINUE LARGE MODEL SPREAD...AS MODELS STRUGGLE TO COME TO A
CONSENSUS ON UPSTREAM MESOSCALE FEATURES/CONVECTION WHICH WILL PLAY
A KEY ROLE IN THE EVENTUAL EVOLUTION OF A WEDGE FRONTAL ZONE AND
WAVE OF LOW PRESSURE FORECAST TO DEVELOP ALONG IT.

AT THIS TIME...IT APPEARS THE BIGGEST THREAT ASSOCIATED WITH THIS
SYSTEM WILL BE FROM PERIODS OF HEAVY RAINFALL IN A A BELT OF HIGH
PWATS OF 1.9-2.1" ATTENDANT TO THE WEDGE/WARM FRONTAL ZONE.
WIDESPREAD RAINFALL AMOUNTS OF 2 TO 3 INCHES IS POSSIBLE BETWEEN
FRIDAY NIGHT THROUGH SUNDAY WHICH COULD LEAD TO SOME FLOODING
CONCERNS IF THE HEAVY RAINFALL FALLS IN A RELATIVELY SHORT DURATION.
ADDITIONALLY... THE LATEST GUIDANCE SUGGESTS THAT ANY SEVERE
POTENTIAL WOULD REMAIN ALONG COASTAL PORTIONS OF THE CAROLINAS...BUT
WILL CONTINUE TO MONITOR FOR ANY CHANGES OVER THE NEXT COUPLE OF
DAYS.

MONDAY THROUGH WEDNESDAY: SHORTWAVE TROUGH TRAVERSING THE REGION
SHOULD PUSH THE PESKY FRONTAL ZONE SOUTH AND EAST OF THE AREA LATE
MONDAY AND INTO TUESDAY... RESULTING IN MODERATING TEMPERATURES WITH
DECREASING CONVECTIVE CHANCES.

&&
 

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Still looking soggy for the WEEKEND, with maybe some rain Friday night (which is not technically the weekend) and some scattered showers and storms early NEXT WEEK (meaning Monday/Tuesady, which obviously is not the WEEKEND). NWS in Raleigh is considering a flood watch for the WEEKEND.

Burns should be effectively dropped from the list after this WEEKEND. Snowstorm gets polyped this run. Sorry bud!

post-987-0-41714800-1407414661_thumb.jpg

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sure am glad we are on this awesome pattern where every weekend is a washout.... :axe: , the kids start school back here Aug 24th and I would love to get a beach weekend or zoo trip in before then......I also got tons of yard work to get done at the new house I moved into and its rained every weekend since we moved in.

 

Looks like we might ONLY get 1-3" this weekend versus the 4-5" we got last weekend even though I am no longer sure exactly when or what a weekend is anymore.

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sure am glad we are on this awesome pattern where every weekend is a washout.... :axe: , the kids start school back here Aug 24th and I would love to get a beach weekend or zoo trip in before then......I also got tons of yard work to get done at the new house I moved into and its rained every weekend since we moved in.

 

 

I feel your pain. I need to mow the lawn, and would much rather do it Saturday morning than after work. I can't wait for fall and the weekly chore of mowing the lawn is over. I enjoy the summers that are drier and you only have to mow every other week.

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I feel your pain. I need to mow the lawn, and would much rather do it Saturday morning than after work. I can't wait for fall and the weekly chore of mowing the lawn is over. I enjoy the summers that are drier and you only have to mow every other week.

Just move to Georgia. I haven't mowed my lawn in a month and it's brown and crunchy now.
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Weekend Washout still on track. Both the 12z NAM and 12z GFS increased amounts over central NC (the NAM especially so), and both moved the axis of heaviest precip south. The best amounts still look to be in south central/southeastern VA and northeastern NC.

 

Pretty much sucks....the mosquitos here are <---------------------------------------------------> that big right now

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Would not shock me to see it dry and in the 90's in SC and GA this weekend. This wet event is clearly going north of the last 2 events. Maybe even 90 and dry in Charlotte over the weekend.

It really matters where the wedge front sets up. The 12z GFS still depicts surface winds at 96 hours from the north into at least the northern zones of SC.  

 

http://www.twisterdata.com/index.php?prog=forecast&model=GFS&grid=3&model_yyyy=2014&model_mm=08&model_dd=07&model_init_hh=12&fhour=96&parameter=WSPD&level=10&unit=M_ABOVE_GROUND&maximize=n&mode=singlemap&sounding=n&output=image&view=large&archive=false

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Weekend Washout still on track. Both the 12z NAM and 12z GFS increased amounts over central NC (the NAM especially so), and both moved the axis of heaviest precip south. The best amounts still look to be in south central/southeastern VA and northeastern NC.

I was waiting for the Euro to edge it's way south from VA border to northern NC and now Wake County....12z Euro precip map has a 6" totals for this weekend over Durham/Wake Counties it's beautiful to see really, and a hole of 1.4" just below Harnett. Obviously (hopefully) overdone but :lmao: , we would definitely see some flash flooding. :flood:

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Brad P. isn't giving Raleigh much love through Sunday morning..

10446101_717101515028974_665179530500536

Something is really wrong with this picture. None of the operational models support this depiction. I guess this is their in-house model. Then even his text is wrong for RDU. It should be .8 (not.08) to match the color banding.  

 

**even so, if it was right we would actually benefit from less rain.

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I was waiting for the Euro to edge it's way south from VA border to northern NC and now Wake County....12z Euro precip map has a 6" totals for this weekend over Durham/Wake Counties it's beautiful to see really, and a hole of 1.4" just below Harnett. Obviously (hopefully) overdone but :lmao: , we would definitely see some flash flooding. :flood:

 

Looking at the rough eWall graphics, it looks like the best 700mb RH stays in very northern NC and southern VA but it still looks pretty moist anyway. I would have thought the Euro would not have shifted south just based on the RH fields...but I can't really tell. Kind of surprising that the 6" line is in Wake.

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RAH has enjoyed using the word soggy, in their last few discussions, to describe the upcoming event.

 

.SHORT TERM /SATURDAY THROUGH SUNDAY NIGHT/...
AS OF 300 PM THURSDAY...

A STRONG WARM SEASON HYBRID CAD EVENT WILL RESULT IN COOL SOGGY
CONDITIONS FOR THE WEEKEND.


A CONGLOMERATION OF CONVECTIVELY INDUCED VORT DISTURBANCES OVER THE
LOWER OHIO/TN VALLEY WILL TRACK EAST-SOUTHEASTWARD...AND ACROSS
NORTH CAROLINA THROUGH WEEKEND. ASSOCIATED CONVECTION WILL BREED A
COMPLEX MILLER TYPE-B STORM SYSTEM WITH MODERATE TO HEAVY RAINFALL
FOCUSED ALONG AND NORTH OF A DIABATICALLY ENHANCED/REINFORCED
BAROCLINIC ZONE INVOF THE CAROLINAS.

SPREAD REMAINS HIGH AMONG THE VARIOUS DETERMINISTIC MODEL SOLUTIONS
AS WELL AS WITH INDIVIDUAL ENSEMBLE MEMBERS...WHICH IS NOT
SURPRISING OWING TO THE MESOSCALE CONVECTIVE FEATURES DRIVING THIS
SYSTEM...WITH CONCERN THAT QPF/CONVECTIVE FEEDBACK IS NEGATIVELY
IMPACTING MODEL SOLUTIONS.

AT THIS TIME...IT APPEARS THE PRIMARY THREAT ASSOCIATED WITH THIS
SYSTEM WILL BE PERIODS OF HEAVY RAINFALL IN A A BELT OF HIGH PWATS
OF 1.9-2.1" ATTENDANT TO THE WEDGE/WARM FRONTAL ZONE. HPC QPF
GUIDANCE SUGGESTS WIDESPREAD 2 TO 3 INCHES ACROSS THE
FORECAST...WITH LOCALLY HIGHER AMOUNTS IN EXCESS OF 3.0 INCHES
POSSIBLE. DUE TO FACT THE THIS 2-3" OF RAIN WILL LIKELY BE FALLING
OVER A 36 HOUR PERIOD...THE MMEFS(ENSEMBLE BASED RIVER FORECAST
SYSTEM)INDICATES A VERY LOW...LESS THAN 10%...PROBABILITY THAT ANY
OF THE RIVERS WITHIN THE RALEIGH HYDROLOGIC WILL REACH MINOR
FLOODING. OUR MAIN FLOODING CONCERN THEN WILL BE FROM URBAN AND
FLASH FLOODING FROM ANY 1-2" RAINFALL THAT FALLS IN A ONE HOUR
PERIOD OR LESS.

WRT SEVERE CONVECTION...CONFIDENCE IS STILL VERY LOW GIVEN
SIGNIFICANT UNCERTAINTY IN THE PRECISE EVOLUTION OF CYCLOGENESIS AND
POSITION OF THE WEDGE FRONT AND LOW PRESSURE WAVE DEVELOPMENT ALONG
THE FRONT. AT THIS TIME...MARGINAL SHEAR PARAMETERS WOULD SUGGEST
A LOW-END SEVERE THREAT WITH PATTERN RECOGNITION FAVORING AREAS
ACROSS SOUTHERN AND EASTERN PORTIONS OF THE STATE WHERE BETTER
DESTABILIZATION IS POSSIBLE. WILL CONTINUE TO MONITOR OVER THE NEXT
COUPLE OF DAYS.

WIDESPREAD CLOUDS AND RAINS ASSOCIATED WITH THE DAMMING REGIME WILL
SUPPORT HIGH TEMPERATURES WELL BELOW NORMAL...RANGING FROM LOWER TO
MID 70S IN THE NW PIEDMONT TO UPPER 70S/LOWER 80S SE.

&&

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