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July Obs/Disco Thread


George BM

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Not a drop, drip or drizzle for July. Not a trace since mid June. Very unlucky to miss everything. Maybe that changes today. Not feeling it. Strange to miss in every direction 5 miles or so from my house. It can drive one crazy if you let it. 

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15 hours ago, mattie g said:

Zilch.  I've been within a few miles of nice rains, but nothing has made its way here. Painful.

It was a completely different world in Clarksburg yesterday from 6:30pm-7pm.  Storms popped to the NW and pulsed their way SSE over time.  One of the storms pulsed right over Clarksburg and we had 1.23" of torrential rain in 25 minutes.  It was windy, too, with lots of gusts over 40mph.  As the storm was exiting to the SSE, it collapsed in a downburst that was wild to see.  The sun was shining to the west as the heaviest rain in the downburst occurred.  Very cool.  As soon as the rain let up, the biggest gust of the storm happened, from the SE as the storm collapsed.  It knocked the anemometer off it's mast on my roof so I did not get a reading but the closest weatherbug station 900m to the SSW measured the gust at 67.1mph.  

A second cell that was all of 10mi across popped right over us at 11pm and gave us another 0.3" in 10 minutes.  My place was like a Costa Rican jungle this morning.

Here's the heart of the downburst at 6:49pm

070420171849_l.jpg

Here's as it was ending at 6:59pm:

070420171859_l.jpg

...and, here's just after it ended at 7:09pm

070420171909_l.jpg

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15 minutes ago, Stormpc said:

Mattie g and MnTranny...at least you have seen 'something' the past week or so. Mattie got about .5 a few days ago. Not a trace here. Sub-zilch. Any decent downpour will cause a flash flood, the ground is cracked concrete. 

Probably not the best abbreviation. ;)

 

Up this way we got .10" yesterday. Nothing so far today but hoping to score something substantial later tonight and tomorrow.

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2 hours ago, das said:

It was a completely different world in Clarksburg yesterday from 6:30pm-7pm...

Very cool stuff, das. Definitely a different world up there yesterday. It was brutally muggy and pretty warm all afternoon and evening here. Had some light showers this morning, and hoping for a little something later.

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Quote

Public Information Statement
National Weather Service Baltimore MD/Washington DC
333 PM EDT Wed Jul 5 2017

...KLWX 88D Radar Outage July 10-14, 2017 for Upgrade...

The NWS 88D Doppler weather radar located at the National Weather
Service's Baltimore/Washington Forecast Office in Sterling, VA 
will be down for approximately four days beginning around 9am EDT 
this Monday, July 10th, 2017, for technicians to install an 
important technological upgrade. 

During the outage, radar coverage is available from nearby radar 
sites including FAA sites for Dulles Airport, Reagan National 
Airport, Joint Base Andrews, and Thurgood Marshall BWI 
Airport...as well as NWS radars for our forecast offices at Mount 
Holly NJ, State College PA, Pittsburgh PA, Charleston WV, 
Blacksburg VA, and Wakefield VA, and DOD radar at Dover AFB.

A crew will install a new signal processor, which replaces 
obsolete technology, improves processing speed and data quality, 
provides added functionality, and supports IT security.

This is the first of four major upgrades, known as service life 
extension projects, planned in the next five years to replace and 
refurbish major components of the 20 year old WSR-88Ds and to keep
the radars operational into the 2030s. The $150M investment is 
being made by the three organizations that use these radars, the 
NOAA National Weather Service, United States Air Force and Federal
Aviation Administration. The other service life extension 
projects include refurbishing the transmitter, pedestal, and 
equipment shelters. 

The tri-agency Radar Operations Center, which supports the radars,
estimates it will take about 10 months in 2016/2017 to upgrade the
signal processor on all 159 operational WSR-88Ds.

 

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