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Scary because im also 36 and seeing this spooked me

93/76/105 at IAD. Dewpoints are legit.

For all the talk of the arctic being cold, the sea ice hasn't got the memo, running near record lows. What I suspect, if the "cold" pattern continues, is that this will slow down heading into peak summer melt season like we've seen in the last few years. So we end up low, but not record low. On the other hand if melt off continues it would be yet another sign that something has indeed shifted.

Rule #1 Never mow during a heatwave RULE#2 Mow less often during the summer RULE#3 raise the height of the lawnmower wheels to do a "long" cut Rule#4 see rules # 1,2, and 3

96/76/109 currently now. I felt the dews creep up the past hour.

8 degree diurnal max from the morning low under sunny skies in July is wild!

^ “El Niño continues to mature, with ongoing and persistent westerly wind anomalies across the Central Pacific. It looks like trades will slacken over the East Pacific in the next couple weeks, allowing warmth to continue propagating east. This is a rather east-based event so far, with Niño 1+2 up over 3.5C already! Models continue to show an impressive peak, with even the relative index (RONI) from CFS forecast to peak over 3C.” Up to +2.3C: Massive WWB in progress:

DCA _ NYC _ BOS _ ORD _ ATL _ IAH _ DEN _ PHX _ SEA 2.8 2.5 2.6 2.5 2.5 0.5 0.5 0.5 0.8

Just more reason to get in the pool!

Swim meet from 5pm on today is gonna suck

It's 6-8pm so the beginning might be rough. Maybe I'll suggest we do 7-8pm instead as that should get the whole area to be in the shade and another hour after peak temperatures.

Boy I hope you are right about that.

I agree, and the whole study of microclimatology is concerned with that ground heat transfer. The 2m standard was picked for both its "human height" and because it is high enough to not be extremely linked to the ground. However, when forecasting I think it's important to do the overcomplicating bit to account for circumstance. If you're caring for livestock, crops, or forested areas then the best possible forecast would account for what that specific area feels. Especially when it comes to frost and crops there is a multimillion dollar industry of figuring out cold pool drainage at 50cm from the ground. To reiterate, I am not calling the 2m standard bad or useless, but just pointing out its real world limits.

HI of 109° in Clarksville and 106° in Poolesville. These are in open, meadow-like areas well away from concrete. Legit.

I think the dewpoint might be lower tomorrow and Friday - upper 60s to around 70 instead of what we're seeing today.

I can't even count how people I know who wish they had never gotten involved with solar power companies.. A staggering number of lawsuits have been filed against solar power companies. I know a guy who worked for a solar power company and he refused to have solar panels installed on his home lol

It is quite impressive to see 8 states (IL, IN, OH, KY, plus DE, NJ, CT, and RI) completely covered by Extreme Heat Warnings: I don't know the last time that I have seen a Midwest heat wave also extend far into the Northeast (especially northern New England) simultaneously like this.

93/78/108

Here in Carlisle just after 12:30pm...the temperature is 94.6 degrees with a dew point of 80.2 degrees. This combination creates a heat index of 115.2 degrees. These numbers are already ridiculous and set to be worse tomorrow. Dew Points of 80+ degrees are not common in our part of the country. It's nearly impossible to exceed a dew point of 83 degrees. It's way too dangerous to go outside for any period of time (for we seniors). I'll update again in the next hour or two. I think 100 degrees here is a possibility, but less than 50% likelihood. Some locations around the LSV are going to reach heat index values of 120+ degrees. Personally, I think I've only ever witnessed an HI at or over 120 degrees maybe 2-3 times my entire life (and I'm 66). I just keep praying for all of us that we don't have brown-outs or worse yet, black-outs. Time will tell.

94/75

Dinner in the pool! If it's in the evening it should be good to hold.

I have a swim team event tomorrow next to the pool deck for 2 hours tomorrow. It's a team dinner event and I think its a good idea to cancel it with HIs near 110 degrees expected but was wondering if you or another met have any opinions.

How does that compare to the bank thermometer?

Looks like there are some legitimate 80 degree dew points showing up. KDNN (Dalton) is registering 90/80 with a HI of 107. My PWS has spiked to an 82 degree DP which is the highest one I have ever recorded.