2013 Mid-Atlantic Severe General Discussion

[BTRWx]

LWX say TOR watch will remain till later due to 2nd area of enhanced echoes in W VA/ NW NC, therefore threat is not over and that surface CF is still way back in KY/OH

As far as I know they aren't responsible for tornado watches, so the forecast offices would have no choice but to follow the SPC.

[Ian]

As far as I know they aren't responsible for tornado watches, so the forecast offices would have no choice but to follow the SPC.

spc probably has ultimate authority but they definitely discuss it with the offices

[Ellinwood]

As far as I know they aren't responsible for tornado watches, so the forecast offices would have no choice but to follow the SPC.

There is collaboration between the SPC and the NWS, but SPC gets the final call and issues the watches.

EDIT: Ninja'd by Ian

[DCWeatherGuy]

First a snow hole, now a wind hole here in DC? 

[TUweathermanDD]

There is collaboration between the SPC and the NWS, but SPC gets the final call and issues the watches.

EDIT: Ninja'd by Ian

Exactly SPC issues, then the local offices are in control of expansion (e.g. Local expansion) and cancelling/trimming/extending time stamps.

[Kmlwx]

LOL....who wrote cwg's latest FB update?  "Please be extremely careful driving tonight and remember not to drive across a flooded roadway. Turn around, don't drown."

 

That's the national flood safety slogan..............

What is LOL about that? 

[MN Transplant]

Well, the HRRR missed the early stuff, and was mediocre on the evening stuff, but it looks like it will nail the overnight stuff. Rain over performer.

[Ian]

Well, the HRRR missed the early stuff, and was mediocre on the evening stuff, but it looks like it will nail the overnight stuff. Rain over performer.

Didn't the NAM too pretty much? Nothing really showed multiple lines initially.

[NOVAForecaster]

The NCEP NMM-WRF was showing 2 lines last night.

 

 

Didn't the NAM too pretty much? Nothing really showed multiple lines initially.

[Mrs.J]

out here there is a ton of water on the roadways (we went out for dinner) and a flood watch is up for the Opequon and also down at Point of Rocks for the Potomac. seems like logical advice to me.

I am closing in on 2 in. of rain down here. My husband came home on 28 and said it was starting to get bad then. Pouring yet once again with reports of road closures and even a water rescue in Fred. Co. I agree with that advice also.

[stormitecture]

From earlier (just iPhone video) from Gaithersburg near the airpark:

 

 

Mostly an excuse to get the Jeep out and dirty

XJ waiting on Storms by WeatherWarrior.Net, on Flickr

 

And then there was flooding:

What a Jeep is for: fording water covered roads. by WeatherWarrior.Net, on Flickr

 

Well, OK, so there is always water over this road (ford). But this time having the lifted Jeep means I still could traverse the upto 18" deep water when it normally is like 6".

[midatlanticweather]

We have been close to 3 in Sterling! At 4" we know the basement is in trouble.

[Ian]

Lost power about 15 min ago. Showers ftw

[Kmlwx]

Another line or sorts poised to come through. 

[BTRWx]

Another line or sorts poised to come through. 

any wind expected?

[Kmlwx]

any wind expected?

 

There will probably be a gust or two. 

[BTRWx]

There will probably be a gust or two. 

I'll take it!

[09-10 analogy]

I believe this is the heaviest rain of the night so far currently. 

[ravensrule]

You will be begging to use my generator by tonight.

 

 

Lost power about 15 min ago. Showers ftw

 

Man am I good.

[AlexD]

EXTREMELY windy on the eastern shore in lewes..... No anemometer to measure right now but I'm guessing three gusts over 50 in the last hour. House I'm in is literally shaking. Some of these gusts have been on par with sandy, IMO

[weatherwiz]

As far as I know they aren't responsible for tornado watches, so the forecast offices would have no choice but to follow the SPC.

 

 

spc probably has ultimate authority but they definitely discuss it with the offices

 

The SPC will usually listen to the local offices and let them state their cases and there are times where the SPC will actually let the local offices in the end make the ultimate decision...there are certainly times though where one side will probably want something but the other side won't agree.

[TUweathermanDD]

Leaking pretty hardcore around one of our windows.

[wxmeddler]

Token 43 mph gust at DCA.

SPECI KDCA 310627Z 26023G37KT 3SM -RA BR FEW014 BKN046 OVC090 18/16 A2920 RMK AO2 PK WND 20037/0622 PRESRR P0008

[TradeWinds]

Closing in on 3" for the event in Frederick.  I'm starting to see water seepage into my basement through a crack...this is new territory for me.

[Hoosier]

Grazulis had it as an F2-- hit a housing project on Quantico Marine Base and then a trailer park.

That was the day of the Cleveland superbomb. Normal rules/climo sorta go out the window with an extreme setup like that.

[Ellinwood]

Nice to see some additional verification out of that last line, though it still didn't do much north of DC.

 

Cold front's coming in... some 35-45 mph gusts out there:

 

KJYO 310835Z AUTO 29018G38KT 10SM -RA SCT035 BKN041 OVC048 12/08 A2925 RMK AO2

 

KFDK 310820Z AUTO 31025G35KT 10SM RA SCT014 BKN028 OVC110 12/12 A2922 RMK AO2

 

KOKV 310815Z AUTO 27026G34KT 10SM SCT035 SCT043 OVC060 10/06 A2926 RMK AO2

[Avdave]

Over a quarter of an inch since midnight and over 2" last night when I went to bed around 10, probably on the mark of 2.5" or so for the event. Pretty impressive.   Rt 15 on Goose creek may be closed due to flooding soon. Gonna mess up the morning commute.  Highest wind gust was 45 mph and that has been in the last hour. Winds woke up me, they are a blowing out there this early morning

[Ellinwood]

The squall line doesn't seem to be having problems producing further north... 45-60+ mph gusts:

 

KLGA 310851Z 18030G54KT 2SM +RA BR OVC008 14/12 A2908 RMK AO2 PK WND 18054/0846 SLP846 P0015 60027 T01390122 56080

 

KEWR 310903Z 23035G51KT 1SM R04R/2200VP6000FT RA BR BKN010 OVC018 16/15 A2914 RMK AO2 PK WND 23051/0901 PRESRR P0003

 

KTTN 310830Z AUTO 25022G46KT 1 3/4SM +RA BR BKN014 OVC019 17/14 A2916 RMK AO2 PK WND 24046/0826 PRESRR P0027

 

KPHL 310741Z 18027G39KT 8SM -RA BKN018 BKN029 OVC041 17/14 A2911 RMK AO2 PK WND 19039/0739 P0003 $

[smokeybandit]

Some pretty big winds in the past hour or so

[Bodhi Cove]

Heavy downpour loud enough to wake me up, rolled through Middle River at 4:15.