MN Transplant

There is such a dramatic difference experiencing heat without high humidity if you are not in the sun and not doing anything active.

I think we’ve already wiped a bunch of the lower set of entries, including mine.

99 on the ob at DCA

There has not been a westerly component to the wind at DCA since the 9am ob. To get to 98/99 is impressive on a river wind.

99.0 at home. Squeaker.

BWI hits 100

A reminder that a 99 on the 5 minute obs can be a 98 or 99 due to rounding. But a 100 is 100.

All three airports now sitting at the 96/97 degree mark with a few more hours to go. My high so far is 98.6.

Stalled for a bit and now have new legs. Cracked 98. Gonna be close.

95 BWI, 94 IAD, 91 on a river wind at DCA 95.4 at home

94.4. I tend to run ahead of the airports until early afternoon for whatever reason.

91.5 and it feels every bit of it

19.4, so somewhere in the middle.

IAD/BWI 97, DCA 95

Copying the record high list from Sterling's AFD Saturday Jun 22nd Climate Site Record High Forecast High Washington-National (DCA) 101F (1988) 99F Washington-Dulles (IAD) 99F (1988) 99F Baltimore (BWI) 100F (1988) 99F Martinsburg (MRB) 102F (1933) 98F Charlottesville (CHO) 101F (1933) 97F Annapolis (NAK) 101F (1988) 94F Hagerstown (HGR) 100F (1988) 98F Sunday Jun 23nd Climate Site Record High Forecast High Washington-National (DCA) 98F (1988) 98F Washington-Dulles (IAD) 96F (1988) 97F Baltimore (BWI) 97F (2010) 98F Martinsburg (MRB) 100F (1934) 94F Charlottesville (CHO) 100F (1894) 96F Annapolis (NAK) 98F (1988) 94F Hagerstown (HGR) 98F (1988) 95F The 1988 drought was nasty back in the plains. I remember the river in my hometown drying up to a trickle.

My high looks like it will be 96.3. Impressive, and more along the lines of the warmer models.

It is all about rounding and conversions between C and F.

94.8. Torch activated.

90 at home. That was easy. I'm a little more bullish on heat than I might otherwise be simply because of how dry it is.

17.4C on the morning sounding at IAD. The models diverge by 00z this evening, with the GFS already pushing 20 and the NAM stuck in the 18 range. I can't fathom that the NAM will be correct here.

Yeah, I remain skeptical. Even if it is doing well with verification at 500mb, the actual weather matters more. NAM's 850s top out at 20-21C. GFS is around 22C. Euro is 22-23C.

Interesting test of the AI models. ECMWF-AIFS and the GFS GraphCast both seem to top out in the 96 range per the maps on Pivotal.

GFS, Euro, HRDPS, and HRRR all support 100 around DC on Saturday, with the NAM being a significantly outlier. The ICON joins the other globals for Sunday.

The heat wave was always going to be focused north of us during the middle of the week, and then collapse down onto us for the weekend. 90/65 is hot, but not that bad. When we go to 97/98 this weekend it'll be more noticeable. But the sudden-onset dry conditions have certainly helped us out in terms of feels-like weather.

On cue: https://twitter.com/capitalweather/status/1803595486609256511?s=46&t=bA1Os5w_10i9PfsurY28aw