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6.1.11 severe weather


Ian

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SPC has outlooked places to our north the last two days in the extended. I think the slight risk will at least come into the D.C. area for Wed in future updates. Features are a bit northwest of optimal, but the ridge starts to break down and we'll need to kick out the high heat somehow. Thursday looks nw-flowish, but nothing major in the pipeline for now.. worth watching.

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LWX AFD: 10AM SUN.

LONG TERM /TUESDAY NIGHT THROUGH SATURDAY/...

UPPER RIDGE FLATTENS OUT ON WEDNESDAY. THIS MAY ALLOW A SHORTWAVE TO

MARCH EAST INTO THE MID ATLANTIC REGION. GFS IS FORECASTING HIGH

AMOUNTS OF CAPE...ON THE ORDER OF 3000-4000 J/KG. EVEN IF THIS IS

OVERDONE...INSTABILITY WILL CERTAINLY BE THERE. MOISTURE WILL BE

THERE TOO...SO EXPECT SCATTERED THUNDERSTORMS FOR WEDNESDAY

AFTERNOON AND EVENING. THERE IS THE POTENTIAL FOR STORMS TO BE

STRONG TO SEVERE.

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LWX also seemed to be hinting at the possibility of maybe some MCS's this weekend if it all goes right too

Depending on what te ridge does we could have a few days of NW flow so it could be interesting.

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What's the euro say?

verbatim not much... but the southern end of the line (wed) especially would be tricky for a global model imo. it's a pretty mesoscale process.

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Ridge too far north this time around i fear.

04/04/08 "Analog".. http://www.spc.noaa....0604/index.html

EDIT:

After a little digging i found a pretty dang good analog.

http://www.spc.noaa....0521/index.html

no analog will be the same imo. just reference. plus in a w/nw flow we're not really going to know if there's a legit trigger till like 24-48 hours out probably.

d3 slight.

post-1615-0-84759200-1306767142.gif

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no analog will be the same imo. just reference. plus in a w/nw flow we're not really going to know if there's a legit trigger till like 24-48 hours out probably.

d3 slight.

post-1615-0-84759200-1306767142.gif

Ian you did notice the 12Z Nam has a bullseye over the DC Metro for overnight wednesday into thursday morning with the precip.

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Day 2 per SPC:

OTHER STORMS WILL LIKELY DEVELOP DURING THE AFTERNOON SWD INTO THE SRN APPALACHIANS. VERTICAL SHEAR WILL BE MUCH WEAKER IN THIS REGION DUE TO PROXIMITY OF UPPER RIDGE...BUT DIABATIC WARMING OF THE MOIST BOUNDARY LAYER AND STEEP /7-7.5 C/KM/ MID LEVEL LAPSE RATES WILL RESULT IN STRONG /2000-3000 J/KG/ MLCAPE. STORMS THAT DEVELOP IN THIS ENVIRONMENT WILL BE PULSE AND MULTICELL IN NATURE BUT WILL BE CAPABLE OF ISOLATED DOWNBURSTS AND LARGE HAIL.

zzzzzzzzzzzzz. Look out for localized flash flooding more than anything else.

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Spc has us in 30% for Wednesday now per the new day 2 otlk

squall line season is better than tornado season here. at least people actually get hit with storms during squall line season.

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cape 3000-3500 should be good for some scattered big stuff. i like some wind damage tomorrow.

I was impressed with CAPE today even though we weren't expecting storms - on the order of 5000 j/kg

And I like having you bullish.

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Henry Margusity over at Accuwx (lol I know) went as far as mentioning a moderate risk tomorrow :arrowhead:

Also - the thread title is very bland lol

im thinking of bring my camera to work :o

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i could see a mod risk tomorrow, probably to our north given the placement at 500/850. we could probably push 3500 cape tho, with seemingly rather decent timing for storms. i can see pretty shelf clouds when i close my eyes.

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