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Daily PDO is hitting -3.4, they say that's the lowest daily they've ever seen. Last October the daily peaked at -3.0, and it resulted in a -3.8 monthly for October 2024, the lowest monthly reading on record going back to the 1800s.

It is very active in Haymarket right now!

BULLETIN - EAS ACTIVATION REQUESTED Flash Flood Warning National Weather Service Baltimore MD/Washington DC 449 PM EDT Sat Jul 12 2025 The National Weather Service in Sterling Virginia has issued a * Flash Flood Warning for... South Central Montgomery County in central Maryland... West Central Arlington County in northern Virginia... Fairfax County in northern Virginia... The Northwestern City of Falls Church in northern Virginia... * Until 800 PM EDT. * At 449 PM EDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 1 and 3 inches of rain have fallen. The expected rainfall rate is 1 to 2 inches in 30 minutes. Additional rainfall amounts of 1 to 2 inches are possible in the warned area. Flash flooding is ongoing or expected to begin shortly. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Radar. IMPACT...Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas. * Some locations that will experience flash flooding include... Arlington... Rockville... Bethesda... Reston... Herndon... Fairfax... Vienna... Falls Church... Pimmit Hills... American Legion Bridge... Mclean... Potomac... North Bethesda... Oakton... North Potomac... Tysons Corner... Wolf Trap... Great Falls... Merrifield... I66 and I495 Interchange...

The only thing I can realistically compare it to is the December 1992 noreaster in terms of how intense it was and how long it lasted. The 1990s were chock full of extreme weather the likes of which we have not experienced since!

Flash Flood Warning National Weather Service Baltimore MD/Washington DC 513 PM EDT Sat Jul 12 2025 The National Weather Service in Sterling Virginia has issued a * Flash Flood Warning for... Fairfax County in northern Virginia... South Central Loudoun County in northern Virginia... Prince William County in northern Virginia... * Until 815 PM EDT. * At 513 PM EDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 1 and 2.5 inches of rain have fallen. The expected rainfall rate is 1 to 2 inches in 30 minutes. Additional rainfall amounts of 1 to 3 inches are possible in the warned area. Flash flooding is ongoing or expected to begin shortly. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Radar. IMPACT...Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas. * Some locations that will experience flash flooding include... Centreville... Bull Run... Sudley... Catharpin... Woolsey...

This was the most intense and extreme heatwave I've ever experienced, both extreme in duration and intense in how long peak triple digit heat lasted. Most of the posters who didn't experience 1993 have no idea what kind of heat we had back then and have never experienced anything like it in our area!

Wow that's absolutely amazing Chris... is that the Bermuda High centered over SE PA? That's the equivalent of Sandy making landfall in S NJ, you rarely if ever see a track and position like that. Did the same thing happen in 1999 and 2002 during the very long heatwaves in those years too?

Mowed today between 10-12. Brutal!

On the season to date, we are 0.1F below where we were last year (through yesterday). Today's warmth could bump us up. In the threaded record, that's the 11th warmest summer to date, with last year tied for 9th during the same period. But looking at the numbers, it looks safe to say it's been decidedly warmer across the board this year versus last with the exception of PIT and AGC.

The ridge during that 10 day heatwave in Central Park from 7-7-93 to 7-16-93 was centered in SE PA. Lower heights and pressures over New England kept the flow W to SW here. So no onshore flow influence back then like we are getting now.

90F today, 7th of the year. This might sound a little *conspiracy hat* adjacent, but the temperatures at PIT are definitely registering cooler compared to last year. I noticed it was routinely 2-3F, maybe 4F, warmer than BTP and AFJ in the afternoons, but high temperatures have been pretty close this summer. Can really see that comparing last July to this one so far. Last year, PIT and AGC were warmest except for Connellsville Co-op site. This year, it's more in the middle of the pack. Heck, it was 2.5F warmer than the Moon Township site, whereas that site is actually 0.1F ahead of the airport this month. Is that the NWS office? PIT was 2.7F warmer than AFJ and 3.4F warmer than BTP last year, versus 1.2F and 1.8F on the month to date. July 2024 July 2025

Been thundering the last two days but no rain. It's not far away but it's also not here

Another 1.37 so far today puts me above 4 inches for the month.

Just referring to New York City and Long Island since I remember 1988 where the heat was focused west of us. We never hit 100 here in 1988 and we had shorter heatwaves that were interrupted by a lot of back door fronts. 1988 is not listed on the NYC longest heatwaves page nor is it high up on the 90+ day summer list, but years like 1993, 1999 and 2002 are prominently featured. As I remember it, 1993 specifically had a heat ridge that held up fronts in the Midwest and Mississippi River Valley, which is why that area had historic flooding while we had endless summer.

I'm sitting in the shade watching my weed plants grow in my garden. It's not bad. Nice breeze. My cannabis plants are dancing around in the breeze and hot sun as I type lol

Yep, like a few years ago. This July is probably going to turn out only slightly above normal, not a bakeoff July like some of the historic summers we've had.

Our longest heatwave around the area was 20 days from 7-29-88 to 8-17-88 at Newark. The ridge axis and strongest 500mb height anomaly was centered over the Great Lakes. At the surface the Bermuda high was pressed to our south with lower pressure over New England keeping the flow more SW. Data for NEWARK LIBERTY INTL AP, NJ Click column heading to sort ascending, click again to sort descending. 1988-07-29 95 1988-07-30 99 1988-07-31 90 1988-08-01 91 1988-08-02 94 1988-08-03 93 1988-08-04 92 1988-08-05 90 1988-08-06 90 1988-08-07 93 1988-08-08 90 1988-08-09 92 1988-08-10 93 1988-08-11 97 1988-08-12 95 1988-08-13 98 1988-08-14 98 1988-08-15 99 1988-08-16 92 1988-08-17 90

I just went to sit on the deck w a beer and immediately turned around. A beer inside sounds better today! 89/79 at the nearest station.

Most models I was looking at had us partly to mostly cloudy for today and tomorrow, between 50-90% cloud cover approximately, so not far off. I saw some TV forecasts that didn't even mention the cloud cover though. We are stuck in this perpetually moist airmass with dews constantly near 70 and above. It seems lows dont even drop into the 60s anymore in July here because it's so humid. Guess we should be thankful, there's so many fires burning right now in Canada that if we got a cool dry Canadian airmass right now our skies would still be gray lol

On 2nd thought - I will gladly welcome them if it means that this godawful weather is finished.

Oh look, more thunderstorms for Gaithersburg and Rockville LOL

It's definitely a human nature thing not a US vs rest of the world thing. The fossil fuel cartels are large multinational corporations and they hold sway over most of the world's governments -- this is why you see their lobbyists even at UN climate conventions. If you want to see real decisive action against climate change (or against anything else that is a problem in society today), you need to ban corporate lobbyists completely just like we did with big tobacco lobbyists. And corporate lobbying is a global problem that extends far beyond this country. I realized that when I started reading stories coming out of the UK about judges imprisoning peaceful climate change activists, including college professors and climate scientists at the behest of fossil fuel companies. The judges put these scientists and professors in prison even before they went on trial (if there even was a trial) as a way to silence them from protesting. They were released in a few days to a few weeks, kept in prison long enough to try to teach them a lesson not to protest.

Man it's blazing out. I made a tactical error and mowed my lawn and I'm pretty sure I almost died. Thank goodness I had some gatorlyte in the fridge

Nice now but 4pm ftl. A late push to 80°.

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