
MN Transplant
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106 HI at DCA
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DCA at 92, running +8 over the river wind of yesterday. That 500 height number is close to the dreaded 600dm level.
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DCA hopped from that 84 to a 89/90 reading 13 minutes later. Looks like we already have widespread 90s at 9:30am.
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91 DCA 93 BWI 94 IAD
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Before this starts, on the Global side, the ICON is the coolest and shuts the big heat down earliest, while the Euro is still insisting on topping 100. GFS in the middle with upper 90s but pushes any relief well down the line. The mesos have a similar spread, with the NAM Nest on the low side with mid-90s and the Canadians into the 100s. HRRR has upper 90s to near 100 Monday.
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I’m trying to determine what is the grossest part of the 18z parent NAM run, and I think it is the 108 Heat Index at 8pm on Monday.
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5.08” for the week. Almost 14” since May 1st. Less than an inch behind 2018 for the wettest May-June combo in my 11-year record.
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You could see that it gusted out in MD while it didn’t in VA. We had no outflow boundary.
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Almost 100k w/o power in northern VA
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DCA to 61mph
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There’s some radar interference along that line. Look at the returns stretching to the ESE. I’d toss that reading.
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Good solid knock of wind at the start. Easily could have been in the 50s.
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57kts IAD
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Check out the CAPE Loop.
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You can see on the 12z HRRR how an initial cell kicks off an outflow boundary and then new cells fire on that this afternoon. Not saying that’s exactly what will happen, but it is cool to see those processes on the models.
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We have had weeks with more precipitation than this, but I cannot remember a time where everything has been wet for nearly a week straight. At no point since Friday could I have mowed the lawn or sat on a chair outside without wiping it off. Maybe 2018?
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It is amazing how it generally evens out over time
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Drought helps a lot as 2024 showed
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If you select a spot away from the metros, it looks more reasonable (Reston 99 on GFS, 102 on Euro). The models got too good and are projecting the tarmac temps
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Euro ran way too high last year at range. GFS seems to have a high bias in the metro areas too.
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The rain is great, if it wasn’t surrounded by the persistent mist for the past 2 days. It has not dried out since it started raining on Friday. Flood watch for Fairfax Co and west today.
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I’m going to ignore all the places that haven’t reported yet, and radar estimates, and declare myself the three-day winner
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Third consecutive 1”+ CoCoRaHS report. That’s a rarity. Just shy of 4” total. Will be interesting to see the ground truth totals from Burke to Ft Belvior.