Thursday, June 15, 2017

Thursday Late Night Weather Update: Mid-June Rainless, Too Warm, and Too Humid Blahs

Sunset at Fort Smallwood Park along the Chesapeake Bay in Anne Arundel Co., Md., June 14, 2017; Source: Flickr user ByTheBayPhotos via this CWG entry.


This entry is a standalone weather update ...

Drought conditions might be returning across the stupid mid-Atlantic region as there has been virtually no rain so far this June (a month that can be quite a wet one).

A wet microburst over Dallas, Texas on June 4, 2017; photo by Toddy Jack.

Speaking of Dallas, I might be going there for another DOE workshop next month -- but it would be just a 48-hour trip. More on that as it approaches.


This month, thunderstorms are constantly in the forecast here in the D.C./Baltimore area -- or rather, they are in the forecast for days 3 and beyond constantly but the chances evaporate by day 1. Tonight, there are actually abundant showers and to-storms in parts of central Virginia and also in Pennsylvania, but nothing here.

Here are the monthly and year-to-date tallies through today (June 15th) for the three regional major airports:

MTD: Trace -1.89" (1.89")
YTD: 14.79" -3.06" (17.85")

MTD: 0.14" -1.66" (1.80")
YTD: 17.27" -1.56" (18.42")

MTD: 0.18" -1.88" (2.06")
YTD: 19.27" +0.39" (18.86")

The CWG's Ian Livingston wrote this entry about it (link embedded):

If I can put it in my own personal theology/cosmology, the nonexistent God that sits up there burbling and making sure that the GOP always wins is busy "protecting" our area with nothing.

That aside, here is the current Sterling (LWX) radar (well, current, that is, as of writing this sentence):

Sterling (LWX) NWS radar in standard base mode reflectivity looped 10:07PM - 10:30PM EDT June 15, 2017.


Oh, and as usually, it's too frickin' hot, at least for me. To be clear, we are above the 30-year normal for June through the middle of the month but not by a dramatic amount (although the real heat has been the past week):

+2.0⁰F at 75.0⁰F

+0.6⁰F at 70.7⁰F

+0.7⁰F at 70.8⁰F

These are all through June 14th.

Speaking of heat, a really horrendous heat wave is in the forecast for much of the Southwestern United States over the next 7 to 10 days with temperatures next week in Phoenix reaching the 120⁰F mark nearing the all-time record high at of 122⁰F set on June 26, 1990*.

0Z 6/14/2017 GFS 2-meter high and low temperatures for Phoenix (KPHX) valid 6/14/2017 - 6/23/2017 as prettied up by into a bar chart.


From that entry, here are the top five hottest temperatures recorded in Phoenix.

1. 122⁰F on June 26, 1990
2. 121⁰F on July 28, 1995
3. 120⁰F on June 25, 1990
4. 119⁰F on June 29, 2013
5. 118⁰F on several days

These were recorded at Phoenix Sky Harbor Int'l Airport (KPHX), although I'm unsure about the 118⁰F dates).

Interestingly, earlier this week, there were freeze warnings in effect for much of Nevada -- at the same time that excessive heat watches were in effect for nearby locations. Unlike freeze warnings and red flag warnings, that's a juxtaposition you don't necessarily don't often see together. A case in point:

U.S. NWS weather advisories map updated 2212UTC (6:12PM EDT) June 13, 2017.

This doesn't show the legend but the maroon colors over parts of Arizona, central California, and southern Nevada are excessive heat watches and the dark slate blue colors over central and northern Nevada and southcentral Oregon are freeze warnings. Note how in some places, the two -- one a current warning and the other a watch for future conditions -- practically touch.


OK, that's all for this entry.


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