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July Obs/Disco Thread

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evere Thunderstorm Warning
MDC027-031-172030-
/O.NEW.KLWX.SV.W.0150.170717T1940Z-170717T2030Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Baltimore MD/Washington DC
340 PM EDT MON JUL 17 2017

The National Weather Service in Sterling Virginia has issued a

* Severe Thunderstorm Warning for...
  West central Howard County in central Maryland...
  Northeastern Montgomery County in central Maryland...

* Until 430 PM EDT

* At 340 PM EDT, a severe thunderstorm was located near Montgomery
  Village, or near Damascus, and is nearly stationary.

  HAZARD...Ping pong ball size hail and 60 mph wind gusts.

  SOURCE...Trained weather spotters.

  IMPACT...Damaging winds will cause some trees and large branches
           to fall. This could injure those outdoors, as well as
           damage homes and vehicles. Roadways may become blocked by
           downed trees. Localized power outages are possible.
           Unsecured light objects may become projectiles.

* Locations impacted include...
  Germantown, Gaithersburg, Olney, Damascus, Montgomery Village,
  Redland, Clarksburg, Washington Grove, Laytonsville, Brookeville
  and Roxbury Mills.

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Still under the "nearly stationary" cell that is sitting over Montgomery Village... rain mostly moderate but occasionally heavy, hail off and on but small pea to sometimes near marble sized, lighting moderately frequently, some wind gusts at times though not of the damaging intensity... back yard has quite a bit of standing water.

Brad (in NE Gaithersburg)

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(sigh)

I'll never understand why it's so hard for me to even see pea sized hail around here. Congrats northerners :P 

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LOL at Germantown included in that warning -- not a drop here and I am at Rt 355 and Rt 27, a couple miles east.  This is the most agonizing miss I can remember with a stationary severe thunderstorm literally three miles away.  Just disgusted.

 

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Just now, BlizzardNole said:

LOL at Germantown included in that warning -- not a drop here and I am at Rt 355 and Rt 27, a couple miles east.  This is the most agonizing miss I can remember with a stationary severe thunderstorm literally three miles away.  Just disgusted.

 

Meanwhile I wasn't even in the warning in east Gaithersburg and got hailed on.

 

I saw the storm northeast of me and took a nap, didn't realize that it was moving Southwest, haha!

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seems to me (a novice) that it isn't so much that the storm in MoCo is "moving SW", just backbuilding or extending itself ever so slowly SW... question is when will it stop doing that?

Agree that if I had a rain gauge (which unfortunately I don't), I'd think we've received a good 1.5-2 inches since this storm planted itself over Gaithersburg/Montgomery Village area.

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BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Baltimore MD/Washington DC
351 PM EDT MON JUL 17 2017

The National Weather Service in Sterling Virginia has issued a

* Flash Flood Warning for...
  Southeastern Carroll County in north central Maryland...
  West central Baltimore County in northern Maryland...

* Until 645 PM EDT

* At 351 PM EDT, Doppler radar indicated thunderstorms producing
  heavy rain across the area. Up to three inches of rain have already
  fallen. Flash flooding is expected to begin shortly.

* Some locations that may experience flooding include...
  Pikesville, Randallstown, Owings Mills, Eldersburg, Reisterstown,
  Mays Chapel, Garrison, Brooklandville, Mcdonogh, Stevenson and
  Glyndon.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

Excessive runoff from heavy rainfall will cause flooding of small
creeks and streams, urban areas, highways, streets and underpasses as
well as other drainage areas and low lying spots.

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Outflow now pushing east out of the moco cell. That might trigger some stuff further east. Weird storm day. This is not our normal way to do things. 

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Drive thru some pea sized hail when I left the office


Sent from my iPhone using Tapatalk

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32 minutes ago, WxWatcher007 said:

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Baltimore MD/Washington DC
351 PM EDT MON JUL 17 2017

The National Weather Service in Sterling Virginia has issued a

* Flash Flood Warning for...
  Southeastern Carroll County in north central Maryland...
  West central Baltimore County in northern Maryland...

* Until 645 PM EDT

* At 351 PM EDT, Doppler radar indicated thunderstorms producing
  heavy rain across the area. Up to three inches of rain have already
  fallen. Flash flooding is expected to begin shortly.

* Some locations that may experience flooding include...
  Pikesville, Randallstown, Owings Mills, Eldersburg, Reisterstown,
  Mays Chapel, Garrison, Brooklandville, Mcdonogh, Stevenson and
  Glyndon.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

Excessive runoff from heavy rainfall will cause flooding of small
creeks and streams, urban areas, highways, streets and underpasses as
well as other drainage areas and low lying spots.

That's funny!  The ground is spotty wet here.  Maybe .01"

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6 minutes ago, mattie g said:

I'm hoping for something to fire along the outflow boundary. Not sure we can squeeze out a storm otherwise down here.

i think we're cooked down here... don't really see a trigger for us to see a storm

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1 hour ago, BlizzardNole said:

LOL at Germantown included in that warning -- not a drop here and I am at Rt 355 and Rt 27, a couple miles east.  This is the most agonizing miss I can remember with a stationary severe thunderstorm literally three miles away.  Just disgusted.

 

I am sort of in the same place. Storm just to my North parked right over 70W. All I am getting 5 miles to the South is some sympathy thunder. 

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I'm looking at that outflow boundary coming my way. I hear rumbles of thunder. Showers are blowing up along it. If it can slow down and stop while a huge t-storm sets up over me, I'd be happy. :-)

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That huge Laytonsville area storm earlier then one popped just a few miles south around Gaithersburg.  Only a brief minute of drops here, not even enough to wet the ground.  I've never been fringed this bad before just 2-3 miles in multiple directions.  Stephens City has got nothin' on the infamous Germantown micro-desert.

OK back out to finish mowing my dusty, weedy hard-packed lawn.  At least I don't have to cut often.

 

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