Friday, June 28, 2013

Late June (Mini-)Monsoon in the Capital of the Empire -OR- A Rainy D.C. Summer Day

Updated at 3:52AM 6/29/2013 for full calendar day precip stats with additional images (see below).

A lovely but subdued and diffuse rainbow over the Lincoln Memorial and scaffolding-and-scrim-covered Washington Monument as seen from Rosslyn, June 28, 2013. This image appeared on the Capital Weather Gang in this entry and was taken by Brian Allen.

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Sterling (LWX) NWS radar in enhanced composite mode at 341PM EDT June 28, 2013.

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This turned into a VERY rainy, stormy day in the immediate D.C. area as clusters of thunderstorms moved through the area.

Reagan Washington National Airport climate station (KDCA) observations from 1PM (1252) EDT and 7PM (1852) EDT, June 28, 2013.

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There was at least 2.69" through the 7PM hour at KDCA, all of it since about 330PM. KDCA had been 0.05" above normal with 0.23" at 19.41" yesterday (normal year-to-date: 19.36").

Today's deluge puts KDCA definitively above normal. It also brings the June monthly precip total to 9.52" or +5.99".

There was a flash flood warning in effect for D.C. -- first until 6PM and then extended until 730PM. I received TWO Verizon weather alerts to that effect.

Temperatures have been running a bit above normal this month at +1.2F at KDCA through yesterday. The hottest it was this month was 94F -- a lot better than the previous three ghastly hot Junes.

Sterling (LWX) NWS radar in enhanced composite mode at 5:57PM EDT June 28, 2013.

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By contrast, BWI Thurgood Marshall Airport and Washington Dulles International Airport climate stations (KBWI and KIAD) had only scant amounts with 0.02" and 0.19", respectively, through 7PM. However, KBWI was already above normal yesterday at +1.44" at 21.59" year-to-date though KIAD was below at -1.98" at 18.44" year-to-date. Both were above normal for the month (7.73" / +4.61" and 4.45 /+0.85").

I will update this entry tomorrow with the complete numbers for June 28th, 2012 for the three regional civilian airport climate stations.

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UPDATED 3:52AM 6/29/2013: Here are the KDCA, KBWI, and KIAD stats as well as those for the Maryland Science Center climate station (KDMH) (which as yet doesn't have a full 30-year climate "normal" record but departures are still given). Normals for the 1981 - 2010 base period are given in parentheses.

KDCA color-coded 2013 climograph for temperature, precipitation, and snowfall through June 28, 2013.

KDCA
6/28: 2.86" (the daily record remains at 2.95" set in 1914, a pre-KDCA Washington, D.C., record)
MTD: 9.69" +6.16" (3.53")
YTD: 22.27" +2.78" (19.49") (last year, it was 12.53" at this point).

KBWI
6/28: 0.02" (yes, that's correct)
MTD: 7.75" +4.52" (3.23")
YTD: 21.61" +1.35" (20.26")

KIAD
6/28: 0.19"
MTD: 4.64" +0.91" (3.73")

YTD: 18.63" -1.92" (20.55")

KDMH
6/28: 0.10"
MTD: 8.61" +5.57" (3.04")
YTD: 22.77" +3.64" (19.13") (last year, it was 11.78" at this point)

End of update.

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It has been turning into a pattern with daily afternoon / evening showers and thunderstorms that show no sign of ending for the next five days.

NWS point grid icon forecast for Washington, D.C., June 28 - July 2, 2013.

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OK, that's all for this entry. I'm also going to try to post a Friday Night Musical Interlude, though I was thinking instead of just doing a Jukebox Saturday Night one instead. Of note, I am home after a very busy day at work watching an episode of Little House on the Prairie -- "The Lake Kezia Monster" -- and reruns of Maude on Antenna TV. Oddly enough, Hermione Baddeley is in both as Kezia and Mrs. Naugatuck, respectively.

Rainy 13th and U Streets NW Washington, D.C., 6:39PM June 28, 2013.

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I want to note that I did not go to the gym again this day (my second one off). I will go tomorrow and Sunday and/or Monday. As for tonight, I'll go to Larry's Lounge and No. 9 and/or Nellie's.

--Regulus

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