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June Discobs Thread


George BM
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Point of Rocks has just verified the highest flood stage since Fran's aftermath in 9/96. It's going to be close at Little Falls between tonight's crest and 3/15/10-- forecast is still for surpassing 3/15/10 to be the highest flood since 9/96. Georgetown should get close to the 4/11 level that ruined all those harbor businesses and cars in the garage when the flood walls were not raised. 

This is a once-a-decade type main-stem Potomac River flood. 

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The Norman Golf Course at Lansdowne lies  in the flood plane and was built (raised greens and tees)  to handle river flooding. Yet, what I saw this afternoon as I rode around was quite an unbelievable sight. The flooding from the river and from Goose Creek inundated so much of the course, reaching greens, covering tee boxes and  many paths and bridges under significant amounts of water. A great majority of the course was unaccessible. The flooding of two weeks ago was almost trivial compared to today.

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8 hours ago, Sophisticated Skeptic said:

did anybody else notice the cells heading into DC from the SE..were blowtorched dry all day Sunday ?

Look at a radar loop for the whole day.

This is in addition to the DC donut hole from Saturday's event. 

wake up

What are you trying to say?

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6 hours ago, 87storms said:

The Potomac River rise is no joke.  Went to a few of the locks and in spots that are normally campgrounds are under several feet of water.  It’s the highest I remember seeing it.  And the mosquitos are loving it.

The mosquitoes are out of control, and I wish that I had put up a bat box last fall.

Also picked up just under a quarter inch of rain last night from the passing thunderstorm.  June total at 2.45"

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Morning AFD from LWX... yay more rain and flooding possible this weekend:

.LONG TERM /SATURDAY THROUGH TUESDAY/...
An active weather pattern is set to return to the area this weekend.
Most model guidance shows at least some mid-level height falls over
the region on Saturday. However, models disagree on the position and
timing of shortwaves embedded within the larger scale flow, some
of which appear to be convectively generated over the Plains and
Midwest. Regardless of the small-scale details, showers and
thunderstorms will be possible on Saturday with a warm, humid
airmass in place and at least some subtle large-scale forcing for
ascent. Temperatures are expected to be in the 80s on Saturday, with
dewpoints in the upper 60s to near 70.

By later Saturday Night into Sunday, a cold front will push
southward into our area. With the front nearby, this time period
should feature the highest chances for showers and thunderstorms.
With precipitable water values over 1.5 inches and ample instability
present, heavy rains could be possible. Given the high rainfall
totals over the last few weeks, the potential for flooding will need
to be monitored.

Guidance differs significantly on the southward progression of the
aforementioned front early next week. The GFS is the most aggressive
in progressing the boundary to our south, and would keep the entire
forecast area dry on both Monday and Tuesday. On the other hand, the
00z Euro stalls the front out just to our south, giving the entire
area rain chances both Monday and Tuesday. The GEFS and EPS both
contain a mixed array of dry and wet members, suggesting that the
forecast for Monday and Tuesday is fairly low confidence at this
point in time. Temperatures during this time period will be tied to
the position of the front, and as a result are also rather
uncertain.

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