1000 replies to this topic

[PottercountyWXobserver]

At work, but on break. Today has been nice for true central PA. Ughhh dry as ever here, nothing last night was a miss with a batch of t-storms that tried to push through the area, and everything is a miss to the south. It is a good thing, the cold front coming up is likely to produce an appreciable amount of liquid.

[pawatch]

Two storms come through today. Got about .50" of rain with each storm. Last storm appeared to have some hail.
1" of much needed rain today.

[NeffsvilleWx]

it appears that God hates Lancaster county...

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looks like reading might be getting some hail though

[Parsley]

it appears that God hates Lancaster county...

 hates lancaster.png   1.39MB   1 downloads

somebody must have been praying........

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE STATE COLLEGE PA
733 PM EDT SAT MAY 26 2012

THE NATIONAL WEATHER SERVICE IN STATE COLLEGE PA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
CENTRAL LANCASTER COUNTY IN SOUTH CENTRAL PENNSYLVANIA...

[NeffsvilleWx]

somebody must have been praying........

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE STATE COLLEGE PA
733 PM EDT SAT MAY 26 2012

THE NATIONAL WEATHER SERVICE IN STATE COLLEGE PA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
CENTRAL LANCASTER COUNTY IN SOUTH CENTRAL PENNSYLVANIA...

Dissipated before reaching central Lancaster county. I think northeastern lanco got a decent storm though.

Did see some nice towering cumulus that direction. It was looking pretty ominous for about half an hour, and we got 15-20 drops of rain, but nothing else.

Maybe tomorrow's heat will bring something.

I have noticed that unless storms come from the west, we usually get missed. Not sure if that's common or not, haven't been keeping track long enough.

[NeffsvilleWx]

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE STATE COLLEGE PA
152 PM EDT SUN MAY 27 2012

THE NATIONAL WEATHER SERVICE IN STATE COLLEGE PA HAS ISSUED A

* FLASH FLOOD WARNING FOR...
NORTHERN ADAMS COUNTY...
SOUTH CENTRAL CUMBERLAND COUNTY...

* UNTIL 315 PM EDT...

* AT 148 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
VERY HEAVY RAIN FROM A THUNDERSTORM OVER NORTHERN ADAMS AND
SOUTH CENTRAL CUMBERLAND COUNTIES IN THE VICINITY OF BENDERSVILLE
AND THE HEADWATERS OF CONWAGO CREEK.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
BENDERSVILLE.

[Eskimo Joe]

These rains will be good for the corn.

[PSUHazletonWx]

85.3 with a DP of 69. HX near 90.

[hckyplayer8]

Nice cell just to the NE of me. State College said lookout Lickdale, which I do not know why being the cell clearly moving SE not SW.

[NeffsvilleWx]

Nice cell just to the NW of me. State College said lookout Lickdale, which I do not know why being the cell clearly moving SE not SW.

are you talking about the cell over pine grove?

looks like that one had some weak rotation a little while ago

[hckyplayer8]

are you talking about the cell over pine grove?

looks like that one had some weak rotation a little while ago

Yeah. Dark as hell over Blue Mountain. Poured here for 60 secs and now nothing.

[NeffsvilleWx]

Yeah. Dark as hell over Blue Mountain. Poured here for 60 secs and now nothing.

nice looking cell with a decent hail threat. I'm hoping the MCS in western PA makes it over the appalachians, but I know it's probably not going to.

1" hail reported in butler, and numerous reports of fallen trees from that system.

[NeffsvilleWx]

looks like that smaller cell to the south just merged with the large one according to the latest sweep. ET over 50k ft.

[Billabong]

MCS holding itself quite nicely for now. Plenty of lightning.

[JamieOber]

About to hit here.

[2001kx]

that was a nasty one that just went through...just got the power back.

[JamieOber]

that was a nasty one that just went through...just got the power back.

It was pretty impressive here. I think the one gust given how it bent over our trees was pretty close to 55.

[hckyplayer8]

That is one nasty line. It is booking too at 50+ mph on latest scans.

[CarlislePaWx]

Getting ready for the arrival of the severe line of tsrws. Radar looks amazing all orange and red. The wording of the warning from NWS sounds quite ominous.....gusts likely to 70mph with extensive and continuous cloud-to-ground lightning. Brace yourselves...

[PSUHazletonWx]

Anti-TS shields locked.

[CarlislePaWx]

Getting ready for the arrival of the severe line of tsrws. Radar looks amazing all orange and red. The wording of the warning from NWS sounds quite ominous.....gusts likely to 70mph with extensive and continuous cloud-to-ground lightning. Brace yourselves...

Well it arrived and is pouring out there now but no severe wind gusts, nor hail, nor virtually any lightning! Looks like good 'ol Blue Mountain is devouring the ferocity of the storms right by me. Zak should be doing better right now.

[Billabong]

Well it arrived and is pouring out there now but no severe wind gusts, nor hail, nor virtually any lightning! Looks like good 'ol Blue Mountain is devouring the ferocity of the storms right by me. Zak should be doing better right now.

Significant damage to your southwest near Chambersburg.... 87 mph measured gust with a report of a roof blown off a building.

[PSUHazletonWx]

Storms missed us south.

[NeffsvilleWx]

[MAG5035]

We were hit hard by this line, power and Internet out. Lots of trees and power line issues. Had M67 mph gust where I was at. More details and pics eventually.

[Blizzard92]

Storm pretty anti-climatic here just northeast of Harrisburg, but now getting a nice soaking rain. This will definitely be good for the gardens.

[PennMan]

Last night's storm was relatively unimpressive here in Bellefonte. A few decent gusts and brief heavy rain followed by an hour or more of light to moderate stratiform rain with occasional thunder. I was out of town for a family GTG Saturday, but it looks like we got hit pretty hard here in the afternoon. Lots of leaf litter and small branches scattered around, along with few larger limbs. Mud and gravel all over the place from the torrential rains. At our cabin in Snyder County we must have had at least 2" of rain Saturday afternoon in just over an hour, washed down the dirt road pretty badly.

I'm looking forward to another hot and humid day today, hoping for another storm this afternoon.

[MAG5035]

Still on generator power here this afternoon. And I think rumor has it our road isn't going to get fixed until tomorrow. At least the cable/phone has been restored, so i can use my internet. What a storm yesterday, I was not in Bellwood when it happened as me and my cousin went down to a friends farm to do some shooting. If you use Wunderground at all it is actually this station. The guys weather station (Davis Vue) measured a 67mph wind gust as the storm went through and it was one of the better storms i've ever seen around here. I was caught flat footed by not taking my laptop or anything to take a video. Then I came back into Bellwood and it was really a mess with multiple trees and power lines down.

[Billabong]

KCCX radar is down with "transmitter problems". Not much to look at today anyway... the cap has been holding on pretty strong.

[MAG5035]

Power has been restored. Took a walk in the woods behind our house and found a couple trees that got sheared in half. Now to attempt to dig up some radar data of what the hell went through here yesterday. I'm really mad I didn't have a device that could take video with me yesterday, cuz I would've had some epic footage of this line roaring through.

Some pics:

This first one was where I was at when the storms hit, which is near the Blair/Huntingdon line on Route 22. Had to clear a tree to get out.
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Next two are in and around Bellwood, first pic is one of the culprits for our 24 hour power outage (other end of our road had lines down as well. Second one was one I found shared on my Facebook from around the school. This type of tree damage was pretty widespread around town.

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(No the cows not real and the storm didn't put it there..haha.)

This last one I just discovered on my F-book (another shared image). Nice debatable picture, poster said this was on the Saxton, PA side of Henrietta Mountain...so in other words this is far southeastern Blair county looking east over the ridge to the far NW portion of Bedford and/or far SW Huntingdon county. I would say yes this was probably a quick spinup along the edge of the line. Would really like to see some velocity data for that area and the Bellwood area as well as the edge of the line was pressing in.

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[hckyplayer8]

Great pics guys.

MAG that sure looks like one. Just not much else it could be.

[hckyplayer8]

This cold front can't come through soon enough.

A night like tonight makes me rethink not sticking in the bedroom A/C.

[PottercountyWXobserver]

Great pics MAG! lol that complex of storms comletely missed me, so I wasn't able to witness the fury. I have only gotten .18" in the last 17 days, I'm really hoping we can get some rain with this next batch tomorrow, and if not, we might be in trouble for a little while. My grandparents spring well water is running low, very noticible drop in water pressure.

[MAG5035]

Great pics MAG! lol that complex of storms comletely missed me, so I wasn't able to witness the fury. I have only gotten .18" in the last 17 days, I'm really hoping we can get some rain with this next batch tomorrow, and if not, we might be in trouble for a little while. My grandparents spring well water is running low, very noticible drop in water pressure.

Hopefully we can get something for ya tomorrow. Looks like a pretty good chance you should be able to get some kind of half decent rainfall. Tuesday was also technically the day that had been looked at more for any potential severe as SPC has had us in a slight risk, and probably will continue to do so when they update soon. Looks like a more typical type threat for C-PA, with probably some decent cells firing ahead of a main line associated with the front. Could be a chance for some rainfall at the end of the week as well.

About the Sunday event, I downloaded the radar data off of the ncdc website and was able to successfully load it into GR2Analyst. Heavily scrutinized the area that possible tornado pic had come from..but couldn't come up with any definitive support from velocity products. Here is the storm relative velocity image as Bellwood was getting victimized. Was hard to set a storm motion since the line was expanding outwards. For instance up towards State College a slower and more easterly trajectory was needed. I set the storm motion for this segment of the squall line for 160 (SE)@45knots for this portion of the squall line. This frame and the next frame had a pretty consistent 45-55knots associated with the gust front.

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After looking at all the stuff I missed while I had been away from the computer when the line blew up and of course when I lost power for 24 hours I must say that this is one of the best examples of a full strength MCS i've seen anytime recently for the middle of the state. Typically of course, we watch these lines get to about Pittsburgh or so and lose alot of punch once it gets off the Laurels. In this case, the MCS blew up in west central PA and made its full stride southeast. I really hadn't anticipated much of a threat beyond heavy rain and perhaps a couple instances of wind and hail with some pop up storms, and neither did CTP or SPC, who only had us in a general thunderstorm risk area. On the SPC mesoanalysis the MCS maintenance and derecho composite parameters weren't high at all, lending to a lack of bulk/0-6km shear and downdraft CAPE's that weren't too terribly high. What we did have were high MUCAPE and low level lapses.. which helped translate the very high winds to the surface. There was plenty of moisture (high PWATs) and heat to work with, and the atmosphere managed to make do and produce a very rapid and hard hitting line of storms.

[Jmister]

Pretty strong wording from the SPC who raised hail and wind probabilities to 30% for much of the area in the mountains and east.

1300 outlook snippet:


AN EXPANSIVE PRE-FRONTAL BAND OF TSTMS IS ONGOING AS OF 12Z FROM
SWRN ONTARIO/LAKE ERIE SWWD INTO NRN KY...LIKELY FORCED BY THE
LEADING EDGE OF STRONGER HEIGHT FALLS ASSOCIATED WITH UPPER SYSTEM
MOVING THROUGH THE GREAT LAKES. BASED ON SATELLITE
IMAGERY...DOWNSTREAM AIR MASS ACROSS NY/PA SHOULD EXPERIENCE STRONG
DAYTIME HEATING. WHEN COUPLED WITH DEWPOINTS IN THE 60S AND
MIDLEVEL LAPSE RATES OF AROUND 7 C/KM...ENVIRONMENT WILL BECOME
MODERATE-STRONGLY UNSTABLE WITH MLCAPE VALUES INCREASING TO
2000-3000 J/KG. THIS DESTABILIZATION ALONG WITH THE EWD PROGRESSION
OF UPPER TROUGH WILL SUPPORT A MARKED INCREASE IN STORM VIGOR AND
COVERAGE BY EARLY AFTERNOON ALONG COLD FRONT AND/OR LEADING EDGE OF
COLD POOL ASSOCIATED WITH THE ONGOING STORMS.

THE STRONGEST MID- AND HIGH-LEVEL WIND FIELD ASSOCIATED WITH THE
TROUGH IS FORECAST TO LAG THE WARM SECTOR TO THE W...LIMITING
DEEP-LAYER SHEAR MAGNITUDES TO GENERALLY 30-40 KT. EXPECT THE
STRONG INSTABILITY TO COMPENSATE WITH ENVIRONMENT BECOMING
SUPPORTIVE OF MULTIPLE ORGANIZED STORM MODES...INCLUDING BOWING LINE
SEGMENTS AND SUPERCELLS WITH THE POTENTIAL FOR CORRIDORS OF WIND
DAMAGE AND SWATHS OF LARGE HAIL. THE GREATEST RISK FOR A TORNADO OR
TWO WILL EXIST ALONG WARM FRONT OVER NEW ENGLAND WHERE LOW-LEVEL
SHEAR WILL BE ENHANCED.

It is already feeling like a stormy day ahead with readings like 77/66 at 9am!