MN Transplant

9 hours ago, WEATHER53 said:

The 80’s had some  doozies.

1980 was king and then 2010 rivaled it and 2011 and 2012 beat it. 
MN might know . I think 1980 might still have record for most 90+ in a row?  The averages for 11 and 12 were unique and one of those had 7 100’s with one station but I forget with 11?

1980 and 2010 were remarkably similar.  Both ended up with 67 days of 90+.  1980 has 5 100s and 2010 had 4.  The average high for the days that hit 90 were within a fraction of each other.  In 2010 the heat started early with a couple of 90s in the first week of April, while in 1980 it stretched on with 14(!) 90+ days in September.  1980 did have the 21-day 90 streak which I believe still lives as the longest.  

Here's my disturbing heat stat, though.  Only 4 years in the entire DCA climo record have had 4+ days where the total temperature (high + low) is 180, or a 90.0 average.

• 2011
• 2012
• 2016
• 2024

We have a heck of a model battle shaping up for Saturday.

GFS - high in the low/mid 70s with clouds

Euro - high in the upper 70s with some rain

NAM - high in the upper 80s, mix of sun/clouds

HRRR - high in the 90s with clouds and later day rain

NWS is going low 80s with a chance of afternoon rain.

1.69” for the entire summer period so far.  Sure could use some tropical remnants.

11 hours ago, WEATHER53 said:

4 in a row for DCA.  Gotta go back to 1930 to find  that.  I think 1930 had a higher 4 day average but otherwise it’s this.

So other illuminated folks ; how does this fit in with 2010,11,12 ?  

I was a 1980 hugger until the torrid terrible trio 2010-2012 

 

 

 

In my mind the humidity of 2011 still makes that one the king.  

0.11”.  The last time I’ve had more than a half inch of rain was in mid-May.

6 minutes ago, Eskimo Joe said:

What was the following winter like I wonder?

Relatively warm for the time period and wet.  Average snow (20").  The prior three winters were cold and snowy.

4 minutes ago, Roger Smith said:

I would be interested in seeing data from July 1936 in your region. Toronto and New York City both set their all-time highs in July 1936 (Toronto 105F July 8, 9 and 10; NYC 106 July 9). A lot of other locations in eastern and central U.S. set very high records that month also. When it was reported that DCA matched a string of three hot days set in 1930, I started to wonder why 1936 wasn't in the mix (although NYC only went two days >100). The heat was generally intense from around 7th to mid-month (and also around Aug 3-5). A location in ND (Steele) was 120F and it exceeded 110 in parts of west-central Canada also, although July 1937 produced a hotter reading  of 113F in SK and June 30, 2021 broke that national record in BC at 120F in Lytton BC -- it was 45F at my place so for a day I was living in a location tying our national record -- town of Lytton (pop 1200) was burned to ground by train-track-spark-induced fires on day of record warm max). There has been very little rebuilding yet because of insurance wrangles and archaeology issues (academics wanting to sift soil for cultural relics pre-settlement days). Not that there is any rush to live in this notorious hot spot anyway.

On similar topic, a toasty 100F at 1230 local time as we endure day seven of our heat wave. I ah by no means in a hot spot here, we live halfway upslope fro Colu bia River to alpine regions at around 3400' asl, it is probably around 105F in valley now. 

DCA also went big that second week of July 1936.  104 and 105 on the 9th and 10th.  That said the rest of the summer is unimpressive, including an amazing 60 degree high (!) on June 24th and 70s for highs multiple times at the end of July and early August.  It really was a one hit wonder summer.

Both of them were at 100 on the 2:00pm 5-minute ob.  BWI had also already cracked it earlier as seen in the 6 hour max.  Amazing run here.

3 minutes ago, Terpeast said:

97 so far imby for the high. Cloud cover for the most part, don’t think I’ll make it to 100 but DCA might

It’s funny that you’ve been beating me all summer, but the last two days I’ve passed you up.  99.9 here at the moment.

High so far are at least:

DCA: 98

BWI: 97

IAD: 96

98.4 at home

4 minutes ago, Eskimo Joe said:

Latest HRRR is.....not encouraging for even garden variety storms.

Latest HRRR…is not a great convective model in weakly forced mid-Atlantic summer conditions 

26 minutes ago, pazzo83 said:

95F at 11am for DCA, although we've already hit 96.

The 850s aren’t as supportive today, but DCA may grind out a 100 anyway.

Yesterday's average temp of 92.0 degrees (104/80) slots in as a tie for the 5th hottest day in the DCA climate record.

85 at 6am at DCA.  Looks like the overnight low was 83.

13 minutes ago, 2010 extreme said:

MN, do you have any records of your high temperature on Friday, July 19 2019 and possibly what time it occurred?

I'm trying to compare obs in Nova from today vs that day.  If so, it's much appreciated.

95.2 at 2:19pm.  From the solar measurements it looks like some clouds developed.  DCA was similar.

Evidently it can only rain in Loudoun and MoCo now

4 minutes ago, Roger Ramjet said:

What was the dewpoint? I remember walking out of my shop just before it hit and the air was so thick you could cut it with a knife.

90/75 at 10:40pm!

18 minutes ago, pazzo83 said:

obscene

Derecho day was still 103 at 6pm, but caught a river wind and dropped to 96 at 7pm.  Bounced back to 98 at 8pm.

https://www.wunderground.com/history/daily/us/va/arlington/KDCA/date/2012-6-29

99 at DCA at 7pm

Reminder on rounding the 5 min obs.  The 104s should be legit.

104 at DCA would be a tie for the 6th hottest temp on record (106 twice, 105 three times)

102.7 at home.  Wow.

Just now, WxUSAF said:

I’ve never had a day in the MA that reminds me more of the desert southwest. Nearly clear skies and just radiating heat from every surface

Exactly.  On these days we are usually watching the cu field and seeing when they might come by.  Just relentless today.

First ever 101 on my station.  Even on the crazy 106 IAD/105 DCA day in 2012 I didn’t make it.  The drought makes all the difference.

6 hourly highs

BWI: 103

DCA: 102

IAD: 99