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July Discobs 2022


George BM
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Yay flood watch lol

Flood Watch
National Weather Service Baltimore MD/Washington DC
634 AM EDT Tue Jul 12 2022

DCZ001-MDZ006-011-013-014-503>506-VAZ052>054-121845-
/O.NEW.KLWX.FA.A.0013.220712T2000Z-220713T0400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
District of Columbia-Northern Baltimore-Southern Baltimore-Prince
Georges-Anne Arundel-Northwest Montgomery-Central and Southeast
Montgomery-Northwest Howard-Central and Southeast Howard-Prince
William/Manassas/Manassas Park-Fairfax-Arlington/Falls
Church/Alexandria-
Including the cities of Silver Spring, South Gate, Bowie, Arlington,
Annapolis, Manassas, Odenton, Damascus, Falls Church, Bethesda,
Chantilly, Centreville, College Park, Reisterstown, Columbia,
Herndon, Severna Park, Greenbelt, Germantown, McLean, Camp Springs,
Rockville, Arnold, Dale City, Suitland-Silver Hill, Lake Ridge,
Gaithersburg, Severn, Reston, Montclair, Baltimore, Alexandria,
Clinton, Glen Burnie, Ellicott City, Woodbridge, Washington,
Annandale, Cockeysville, Lisbon, Laurel, and Franconia
634 AM EDT Tue Jul 12 2022

...FLOOD WATCH IN EFFECT FROM 4 PM EDT THIS AFTERNOON THROUGH THIS
EVENING...

* WHAT...Flash flooding caused by excessive rainfall is possible.

* WHERE...Portions of DC, Maryland and northern Virginia, including
  the following areas: in DC, District of Columbia. In Maryland,
  Anne Arundel, Central and Southeast Howard, Central and Southeast
  Montgomery, Northern Baltimore, Northwest Howard, Northwest
  Montgomery, Prince Georges and Southern Baltimore. In northern
  Virginia, Arlington/Falls Church/Alexandria, Fairfax and Prince
  William/Manassas/Manassas Park.

* WHEN...From 4 PM EDT this afternoon through this evening.

* IMPACTS...Excessive runoff may result in flooding of rivers,
  creeks, streams, and other low-lying and flood-prone locations.
  Creeks and streams may rise out of their banks.

* ADDITIONAL DETAILS...
  - Strong to severe thunderstorms will move across the region
    late this afternoon through the evening hours. Heavy rain
    will accompany a number of these storms which may drop 1 to 2
    inches of rainfall in an hour. Additionally, some regions
    could see repeat thunderstorm activity leading to an enhanced
    threat for flooding.
  - http://www.weather.gov/safety/flood
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25 minutes ago, yoda said:

Yay flood watch lol

Flood Watch
National Weather Service Baltimore MD/Washington DC
634 AM EDT Tue Jul 12 2022

DCZ001-MDZ006-011-013-014-503>506-VAZ052>054-121845-
/O.NEW.KLWX.FA.A.0013.220712T2000Z-220713T0400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
District of Columbia-Northern Baltimore-Southern Baltimore-Prince
Georges-Anne Arundel-Northwest Montgomery-Central and Southeast
Montgomery-Northwest Howard-Central and Southeast Howard-Prince
William/Manassas/Manassas Park-Fairfax-Arlington/Falls
Church/Alexandria-
Including the cities of Silver Spring, South Gate, Bowie, Arlington,
Annapolis, Manassas, Odenton, Damascus, Falls Church, Bethesda,
Chantilly, Centreville, College Park, Reisterstown, Columbia,
Herndon, Severna Park, Greenbelt, Germantown, McLean, Camp Springs,
Rockville, Arnold, Dale City, Suitland-Silver Hill, Lake Ridge,
Gaithersburg, Severn, Reston, Montclair, Baltimore, Alexandria,
Clinton, Glen Burnie, Ellicott City, Woodbridge, Washington,
Annandale, Cockeysville, Lisbon, Laurel, and Franconia
634 AM EDT Tue Jul 12 2022

...FLOOD WATCH IN EFFECT FROM 4 PM EDT THIS AFTERNOON THROUGH THIS
EVENING...

* WHAT...Flash flooding caused by excessive rainfall is possible.

* WHERE...Portions of DC, Maryland and northern Virginia, including
  the following areas: in DC, District of Columbia. In Maryland,
  Anne Arundel, Central and Southeast Howard, Central and Southeast
  Montgomery, Northern Baltimore, Northwest Howard, Northwest
  Montgomery, Prince Georges and Southern Baltimore. In northern
  Virginia, Arlington/Falls Church/Alexandria, Fairfax and Prince
  William/Manassas/Manassas Park.

* WHEN...From 4 PM EDT this afternoon through this evening.

* IMPACTS...Excessive runoff may result in flooding of rivers,
  creeks, streams, and other low-lying and flood-prone locations.
  Creeks and streams may rise out of their banks.

* ADDITIONAL DETAILS...
  - Strong to severe thunderstorms will move across the region
    late this afternoon through the evening hours. Heavy rain
    will accompany a number of these storms which may drop 1 to 2
    inches of rainfall in an hour. Additionally, some regions
    could see repeat thunderstorm activity leading to an enhanced
    threat for flooding.
  - http://www.weather.gov/safety/flood

I guess one storm is going to pop up over Northern Balt County... since they are the only M/D county in the flood watch

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1 hour ago, Interstate said:

I guess one storm is going to pop up over Northern Balt County... since they are the only M/D county in the flood watch

     While coverage may be slightly lower in the northern counties, the main reason for leaving them out of the watch is that the flash flood guidance shows that it will take more rain up there to cause problems than it will along the I-95 corridor:

125242110_ScreenShot2022-07-12at8_32_13AM.thumb.png.c815ef7e95a9947d69c4bf8297c421db.png

 

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3 hours ago, high risk said:

     While coverage may be slightly lower in the northern counties, the main reason for leaving them out of the watch is that the flash flood guidance shows that it will take more rain up there to cause problems than it will along the I-95 corridor:

125242110_ScreenShot2022-07-12at8_32_13AM.thumb.png.c815ef7e95a9947d69c4bf8297c421db.png

 

Surprised my area is the "easiest" to flood - just not many streams around here that tend to cause issues. I guess that isn't exactly what this map is getting at, but there are only a few areas in N Arlington that I think of as particularly flood-prone. 

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1 hour ago, NorthArlington101 said:

Surprised my area is the "easiest" to flood - just not many streams around here that tend to cause issues. I guess that isn't exactly what this map is getting at, but there are only a few areas in N Arlington that I think of as particularly flood-prone. 

        The map takes into account how much rain has fallen in recent days, and that big rain Friday night in the Arlington-Bethesda corridor has really lowered the rain totals needed to cause problems there.    There will certainly be regions within the higher threat area that are far lower risk than others, but it's accounting for the general threat.

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        The map takes into account how much rain has fallen in recent days, and that big rain Friday night in the Arlington-Bethesda corridor has really lowered the rain totals needed to cause problems there.    There will certainly be regions within the higher threat area that are far lower risk than others, but it's accounting for the general threat.

Ah, I made the “make a bad assumption off a cursory glance” and assumed that the map was the risk in general rather than the current risk. Thanks for the assist
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26 minutes ago, Maestrobjwa said:

Love the storms, hate the damage (especially loss of power)...but the storms are too cool not to love. A rush!

BS. They suck. You want to pay my tree service bill. When I get power and full internet back I will show pics. Yes I am still without power. Supposed to be back on tomorrow at 530 PM. 

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