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DC/MD/VA/WV General Obs/Disc: mid-July - end of August


Ellinwood

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Power was back after the storms passed yesterday, so no harm done. Leaving my neighborhood, headed toward Spring Mills, there is a rise in elevation to a crest at the top of Tice Rd. (Pretty good panoramic view there.) Saw the most damage in that area. Trees uprooted. Pretty elaborate kids' play set in a yard there smashed and scattered. Another home, where an older woman is always seen landscaping and keeps a beautiful yard, had the shingles peeled back on part of her roof, and some heavy water damage by the looks of it. I escaped pretty well unscathed. SE winds don't do too much damage with my layout.

Picked up 0.03" and a brief drop in temps from the earlier storm today.

Spoke with the grandson of the folks who lost part of their roof. (We actually work together, but I had never made the connection.) They say it was a tornado that hit their house. By the looks of some of the tree damage around there, I'd say its believable. That's a mile from my back yard, less as the crow flies.

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MESOSCALE DISCUSSION 1731

NWS STORM PREDICTION CENTER NORMAN OK

1212 PM CDT MON JUL 25 2011

AREAS AFFECTED...DC...VA...PA...DE...MD...NJ

CONCERNING...SEVERE POTENTIAL...WATCH UNLIKELY

VALID 251712Z - 251915Z

THE CHANCE FOR ISOLATED DAMAGING WIND GUSTS/WET MICROBURSTS MAY BE

INCREASING ACROSS PARTS OF SERN PA....SRN NJ....AND THE DC AND

NORTHERN DELMARVA REGION. OVERALL POTENTIAL FOR MORE WIDESPREAD AND

ORGANIZED SEVERE STORMS CURRENTLY APPEARS TOO LIMITED TO JUSTIFY A

WATCH FOR THESE AREAS.

CELLS AND CLUSTERS OF TSTMS HAVE STRENGTHENED COINCIDENT WITH

HEATING OF THE DAY AND MOIST ELY INFLOW AHEAD OF A WEAK SURFACE

TROUGH AXIS FROM ERN PA SWD INTO NRN VA. OTHER THAN THE SURFACE

TROUGH AND IMPROVING THERMODYNAMIC ENVIRONMENT DUE TO

DIURNAL/DIABATIC EFFECTS THERE APPEARS TO BE LIMITED LARGER SCALE

SUPPORT FOR STORMS IN THIS REGION WHICH IS REMOVED FROM STRONGER

FORCING ALONG THE ADVANCING COLD FRONT TO THE NORTH. DEEP-LAYER FLOW

IS ALSO LIMITED ATTM AS EVIDENCED BY RELATIVELY SLOW STORM MOTION.

DESPITE THESE SHORTCOMINGS....ROBUST DEVELOPMENT HAS BEEN UNDERWAY

FOR SEVERAL HOURS AND A LARGER COLD POOL APPEARS TO HAVE MATURED

ACROSS SERN PA. LIFT ALONG STORM OUTFLOW/COLD POOL SHOULD SUPPORT AN

EWD PUSH TO CONVECTION ACROSS THE INSTABILITY AXIS OVER THE NEXT FEW

HOURS. AREAS AHEAD OF THE ADVANCING STORMS THAT HAVE HEATED INTO THE

LOWER 90SF AND ARE WITHIN A NARROW AXIS OF GREATER DCAPE AROUND 1000

J PER KG WHERE LOCALIZED WET MICROBURST POTENTIAL WILL BE MAXIMIZED.

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BULLETIN - EAS ACTIVATION REQUESTED

SEVERE THUNDERSTORM WARNING

NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC

128 PM EDT MON JUL 25 2011

THE NATIONAL WEATHER SERVICE IN STERLING VIRGINIA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...

EASTERN CARROLL COUNTY IN NORTH CENTRAL MARYLAND...

WESTERN BALTIMORE COUNTY IN NORTHERN MARYLAND...

* UNTIL 200 PM EDT

* AT 122 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A

SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS

OF 60 MPH. THIS STORM WAS LOCATED OVER WESTERN BALTIMORE COUNTY...

OR 9 MILES SOUTHEAST OF WESTMINSTER...AND MOVING EAST AT 20 MPH.

* LOCATIONS IMPACTED INCLUDE...

BUTLER...

BORING...

UPPERCO...

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