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June 1, 2012 - Severe Thunderstorms/Tornadoes Event


Kmlwx

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Or, you could look back a year ago, when SPC had a 5% tor risk out, and NWS belatedly issued a tornado warning for the EF3 that tore through Springfield, MA, and everybody was on their case. I don't know if overforecasting is better, but it's certainly not worse.

the parameters for that event were better than this one....it was absolutely classic....and the spc shockingly maintained a slight risk that day...didn't understand it at all. Not to mention the issues with the warning at BOX and the ENX radar...

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To sit back and call an SPC bust is ridiculous. I was less than enthused with some of the local office warnings, however.

Yes, I noticed that. There were several tornado warnings issued for broad and extremely weak couplets and in several instances I couldn't really find a couplet, or it didn't last very long. I guess they took the environmental conditions and population into effect and were being cautious.

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There seem to be alot of cases where storm mode isn't quite clear or it's not quite clear what will happen after storm initiation. Unless you're dealing with a situation where you virtually have a line of supercells where just about every supercell seems to produce it can be very hard to gauge the situation.

How they also determine it probably also depends on past setups and such...don't they take alot of that into account or something?

I know in theory why but it's not like it's actually well defined or transparent or anything.

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Not much more can be said about the event and how it unfolded, I agree with Tony on this with respect to how things looked right before the first line fired. Also I wouldn't be shocked if there weren't more tornadoes added to the tally in the next couple of days, once the storm surveys occur. I noticed a couple of times where they had severe warnings at times when there was really good rotation. Of course I did also see a few tornado warnings where I would personally question what they were pulling the trigger on. Beyond that I think the outlook upgrade was more than justified especially considering the locations/time of day and initial environment before the first line fired.

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Since I'm sure this is at least slightly directed at me.. my reasoning for "downplaying" was not all climo. I spend a lot of time researching patterns to learn how to better forecast. I know what big DC tornado patterns are.. this one was close, but it had issues as far as I was concerned all along. I never bash the NWS or SPC and I did not here either. However, as someone who will never attempt to be an SPC forecaster or something I can of course speak a little more freely than perhaps you or tornadotony.

I will say again this ended up a little more than I expected and perhaps because I thought the WF would end up further north of what it did. Not to mention I probably didnt look at it as heavily as I would have if I was not out in the Plains.

To me, not all the ingredients were there for this to be a dangerous outbreak. I suppose if we had more sun we would have had more tornadoes, but I can't recall any outbreak other than a landfalling tropical cyclone that had such meager mid level lapse rates. You need some more ML CAPE to compensate for that I think. Without those lapse rates, you aren't going to get the good vertical stretching for violent updrafts sustaining supercells. The end result would be a lot more brief spin ups like we saw today...but probably a few more if CAPEs were a bit higher.

On the other hand, I did think we would see a few more reports than we did. All in all, a good learning experience for severe wx enthusiasts on the East Coast.

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I had mentioned last night how a tree had fallen into a house in Towson after a strong thunderstorm went through there (and eventually created the possible tornado that touched down in Bel Air)

Anyways, here is a picture I found from Towson Patch.com

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Does anyone know the number of cells that were warned yesterday in LWX? I ask only because although there were numerous warnings, isn't that only because individual cells get new warnings from jurisdiction to jurisdiction?

As far as some of the criticism, maybe I'm misinterpreting it, but I thought national and local offices did well. I talked to a BGE damage assessment guy this morning and he told me there are two main areas they are dealing with. The first is obviously the Falston area, and then the second was the cell that went through upper MoCo and HoCo (Elkridge). Although I'm not sure either area has confirmed a tornado, when all is said and done, even just two tornados here is pretty impressive.

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Channel 11 (WBAL) has their copter up in Bel Air now, and are showing the damage that smoke reported. Structural damage to some buildings, cars flipped, some debris wrapped around trees etc.

That was one awesome Chase Ryan SmokeEater and I did and got nailed with a Tornado with video and some pictures. Bel Air Tornado 6-1-2012. Amazing timing seen 2 wall clouds up in York County Pa then drove down into Bel Air and got lucky there.

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I noticed VA and MD and DC have vastly superior live traffic webcam coverage compared to New England.. too bad they are generally looking at the roads and not the skies

Yes it makes no sense to have the traffic cameras pointing down to the road. those dumb people operating them.

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This was an 8/10/ B+ as far as impact. It's just the bar was set very high. Torrential rain, awesome cloud structure, wind sometimes damaging, CG lightning, discrete cells and multiple lines, long lasting, flooding, funnels, a few tornadoes, high impact on traffic, air travel and metro with massive delays.

It was a solid event if not rare or remarkable. If it was an overperformer it would have been more impressive but it wasn't.

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Yes it makes no sense to have the traffic cameras pointing down to the road. those dumb people operating them.

Seriously though, it would be fantastic to have that kind of coverage looking at the sky. I had a good time picking cameras in the path of the strongest storms and watching them roll through yesterday just to weenie out. With a thick enough network of cameras looking skyward I think a camera network would be useful for actual forecasters as well.

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That's just a few miles from me.

http://www.wavy.com/dpp/news/local_news/hampton/city-assesses-damage-after-tornado

NWS: Tornado was EF1 with 98 mph winds

Blackbeard festival to start at 2 p.m.

Updated: Saturday, 02 Jun 2012, 11:43 AM EDT

Published : Saturday, 02 Jun 2012, 7:43 AM EDT

HAMPTON, Va. (WAVY) - The National Weather Service has released more information on the tornado that moved through parts of Hampton Friday night, leaving damage in its wake.

According to the NWS, the tornado began as a waterspout touchdown with power flashes on the Monitor Merrimac Memorial Bridge around 8:13 p.m. It then went over Chesapeake Avenue before moving through downtown Hampton and the Hampton Yacht Club.

There, it went into the Chesapeake Bay.

Robin McCormick, Hampton Communications Director, said the hardest hit neighborhoods include Merrimac Shores and Park Place. The downtown area of Hampton is also said to have extensive damage.

WAVY News’ Art Kohn was in Hampton early Saturday morning and found large trees and power lines down in neighborhoods. At the Hampton Yacht Club, several boats were blown about.

Photos: Aftermath of June 1 storms

McCormick said the strong winds also blew out windows in the City. The NWS added windows were blown out and the roof was partially damaged at the yacht club, while Amory Seafood Building on Sunset Road experienced roof damage.

“Police are urging people to stay away from those areas unless they live there,” McCormick said.

According to McCormick, the National Weather Service said the tornado was first spotted in Portsmouth and traveled across the water to Hampton between Wythe and downtown. The tornado was then said to have skipped over Mercury Boulevard and moved toward Boxwood Street in the East Hampton area.

Winds were around 85mph, McCormick added.

The tornado was said to have been 0.3 miles in width and it's path covered about 3.5 miles. The NWS said it reached wind speeds of about 98 mph, classifying it as an EF1 on the Fujita scale.

Map: Tornado's path through Hampton

Many viewers have been asking about the Blackbeard festival. According to McCormick, organizers are cleaning up and it looks as though a canopy over the stage at Mill Point Park was blown off, but the stage itself was not damaged.

"The Blackbeard festival will open at 2 p.m. with a full schedule, including fireworks," McCormick said. She added an old sewing machine was hooked up to a generator so tents could be repaired. Dolphin laundromat donated laundry service, plywood and sand to help get the festival ready.

No one was seriously injured and only minor injuries were reported.

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:lol: you troll!

Shhhhh :)

Radar-estimated precip totals from the event..........looks like eastern Balt. county really got socked

post-1069-0-53180600-1338656356_thumb.gi

Hmm, I dont think we got 1.5" here, more like .75 or so

4.5" from one of the CoCoRahs observers.

Holy Crap, thats impressive.

Seriously though, it would be fantastic to have that kind of coverage looking at the sky. I had a good time picking cameras in the path of the strongest storms and watching them roll through yesterday just to weenie out. With a thick enough network of cameras looking skyward I think a camera network would be useful for actual forecasters as well.

I guess that is why they have the Skywarn spotters around and everyone has a camera with video capability to shoot interesting wx events and post them to social media immediately. Twitter was on fire yesterday for me with pics and obs coming in non stop for 5 hours straight.

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PUBLIC INFORMATION STATEMENT

NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC

535 PM EDT SAT JUN 02 2012

EARLIER TODAY...THE BALTIMORE/WASHINGTON WEATHER FORECAST OFFICE IN

STERLING VIRGINIA SENT FIVE STORM SURVEY TEAMS ACROSS THE REGION TO

DETERMINE IF YESTERDAY`S THUNDERSTORM WIND DAMAGE WAS CAUSED BY

TORNADOES. THE SURVEY TEAMS WENT TO:

1. DAMASCUS IN MONTGOMERY COUNTY.

2. ACCOKEEK IN PRINCE GEORGES COUNTY.

3. FT. MEADE AND BWI AIRPORT IN ANNE ARUNDEL COUNTY.

4. FALLSTON IN HARFORD COUNTY.

5. SIMPSONVILLE IN HOWARD COUNTY.

6. MT. AIRY IN CARROLL COUNTY.

THE STORM SURVEY PROCESS WILL BE ONGOING THROUGH EARLY NEXT WEEK

DUE TO THE LARGE NUMBER OF DAMAGE REPORTS THAT HAVE BEEN RECEIVED.

WHILE SOME PRELIMINARY INFORMATION WILL BE AVAILABLE LATER THIS

EVENING FROM THE SURVEYS...FINAL DETERMINATION OF THE TOTAL NUMBER OF

TORNADOES WILL NOT BE COMPLETED UNTIL ADDITIONAL LOCATIONS ARE

SURVEYED.

AT THIS TIME...BASED ON CORROBORATING DAMAGE REPORTS WITH RADAR

ANALYSIS...IT IS HYPOTHESIZED THAT BETWEEN 5 AND 10 TORNADOES

OCCURRED YESTERDAY AROUND THE REGION.

PLEASE CHECK LATER THIS EVENING FOR UPDATED PUBLIC INFORMATION

STATEMENTS FROM THE BALTIMORE/WASHINGTON WEATHER FORECAST OFFICE

DEALING WITH YESTERDAY`S STORMS.

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Around what time yesterday, smokey?

I'll be very curious in what they determine the Ft. Meade damage to be from, because from my view on my porch about that time, sure looked like some circulation in a cloud right over Ft Meade.

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PUBLIC INFORMATION STATEMENT

NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC

535 PM EDT SAT JUN 02 2012

EARLIER TODAY...THE BALTIMORE/WASHINGTON WEATHER FORECAST OFFICE IN

STERLING VIRGINIA SENT FIVE STORM SURVEY TEAMS ACROSS THE REGION TO

DETERMINE IF YESTERDAY`S THUNDERSTORM WIND DAMAGE WAS CAUSED BY

TORNADOES. THE SURVEY TEAMS WENT TO:

1. DAMASCUS IN MONTGOMERY COUNTY.

2. ACCOKEEK IN PRINCE GEORGES COUNTY.

3. FT. MEADE AND BWI AIRPORT IN ANNE ARUNDEL COUNTY.

4. FALLSTON IN HARFORD COUNTY.

5. SIMPSONVILLE IN HOWARD COUNTY.

6. MT. AIRY IN CARROLL COUNTY.

THE STORM SURVEY PROCESS WILL BE ONGOING THROUGH EARLY NEXT WEEK

DUE TO THE LARGE NUMBER OF DAMAGE REPORTS THAT HAVE BEEN RECEIVED.

WHILE SOME PRELIMINARY INFORMATION WILL BE AVAILABLE LATER THIS

EVENING FROM THE SURVEYS...FINAL DETERMINATION OF THE TOTAL NUMBER OF

TORNADOES WILL NOT BE COMPLETED UNTIL ADDITIONAL LOCATIONS ARE

SURVEYED.

AT THIS TIME...BASED ON CORROBORATING DAMAGE REPORTS WITH RADAR

ANALYSIS...IT IS HYPOTHESIZED THAT BETWEEN 5 AND 10 TORNADOES

OCCURRED YESTERDAY AROUND THE REGION.

PLEASE CHECK LATER THIS EVENING FOR UPDATED PUBLIC INFORMATION

STATEMENTS FROM THE BALTIMORE/WASHINGTON WEATHER FORECAST OFFICE

DEALING WITH YESTERDAY`S STORMS.

I was gonna starngle the NWS if they didn't confirm a Tornado with the Damascus cell. It was warned for like 3 hrs.

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PRELIMINARY LOCAL STORM REPORT

NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC

620 PM EDT SAT JUN 02 2012

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...

..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....

..REMARKS..

0554 PM TORNADO PLEASANT HILLS 39.48N 76.39W

06/01/2012 HARFORD MD NWS STORM SURVEY

*** 2 INJ *** RATED EF-1. PATH LENGTH 1.25 MILES AND

WIDTH 0.25 MILES.

&&

EVENT NUMBER LWX1200267

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