GramaxRefugee
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Everything posted by GramaxRefugee
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Hi of 93.5 but hi DP was 82 Currently 86/78
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91 for my hi was also hi for the month (other days too) Lowest June temp 51 June rain 3.32 DP 79. Typical
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Don't know what year you have in mind, but HoCo has required 2,10,100 year attenuation since the 1970s. I can think of some spots without SWM (1960s) but not much. And, if it is redeveloped, even the existing impervious is required to be managed at 75%. You can't even build a single lot house without SWM nowdays. Can't explain in a combox, but just trying to help. Clik on that CSN link I posted. They're sort of a fun group to read.
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This is true. I've been doing SWM for 35 years in several states, and I can tell you that MD is much more difficult than PA, VA, WV, NY, NC, SC, and I guess others that I don't have experience in. However, difficult does not equal good. Bureaucratic does not equal good either. Besides, as has been pointed out, SWM is not done for 12" of rain. Our 100 year event is 7.3 (or 8.5, depending what you use) in 24 hours. No amount of hydrology can stop this. Hydraulics, OTOH, (the sizing of culverts and other conduits) could be improved, if there is room. Ironically, a local stormwater group, Chesapeake Stormwater Network , http://chesapeakestormwater.net/category/publications/csn-technical-bulletins/ had their office in EC. Took almost a year for them to return after the 2016 flood (if I have that right).
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Currently stuck in a SWA flight at ATL. Diverted here with broken wx radar. Now no flights may be dispatched to BWI due to wx there. Keeping eye out. Anyone verify that Catonsville gauge report?
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Well heck. Now that I look at that link, it would be 8 straight days if they lowered their standard to 0.15". I'd consider the 0.4 to be a substantial number. Perhaps the 0.15 just spreads out the various records too far, making "records" everywhere. This isn't a particular record I've looked closely at before. So, I'm sort of stumbling through the high weeds.
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I guess I should have just listed that AFD, so here it is (sorry) It has been an unusually wet pattern over the last week. For DCA (Reagan National), there has been at least 1/4" of rain each of the last 7 days. This is the longest streak on record. The previous longest was 5 days in 2011, 2009, 1975, 1950, 1942, and 1937. Precipitation records date back to 1871
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The AFD said 1/4", which I was skeptical of. So I immediately came here to check and Rodney lists 0.4", which I find more believable. The years listed did not include 1996, which I remembered as a summer of rain. But I didn't check the record.
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Rain easing back now with 1.62 in the electric gauge. Will check the real gauge in the morning
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The twitter link has a photo.
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Strong rain here 7:45 No thunder here so far
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I hope none of the old guys points out that when we were your age the whole summer...well never mind. (At least we could drink ice water though. With power out, you can't even do that.) Derecho was my first choice too
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So, a factor of 3 difference. Not far off the pace really.
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Do you have similar data for Baltimore? How about Richmond or Raleigh? My meaning....if it was meteor dust, as noted, it would not be confined to DC alone. Fascinating either way.
