June Discobs 2026

[WxUSAF]

10 hours ago, Paleocene said:

https://streamable.com/010pjd

 

Backyard fireflies peaking in silver spring. This is after three years of curating their habitat with a couple hundred square feet of "meadow" and dumping leaf litter in a few areas. Everyone should do it!

Can you take some pics of the meadow area? What did you plant there? You converted turf grass to that ?

[Eskimo Joe]

10 hours ago, Paleocene said:

https://streamable.com/010pjd

 

Backyard fireflies peaking in silver spring. This is after three years of curating their habitat with a couple hundred square feet of "meadow" and dumping leaf litter in a few areas. Everyone should do it!

 

13 minutes ago, WxUSAF said:

Can you take some pics of the meadow area? What did you plant there? You converted turf grass to that ?

Yes more details on this please so I can replicate!

[yoda]

33 minutes ago, Eskimo Joe said:

Not sold on widespread 100s. It's several days out, some models like the Euro have a known mid range heat bias, and it's rare to get an airmass that supports many 100+ degree air temperatures readings. We probably won't know until next Tuesday if we're going to have a legit heat wave on our hands, or if this is just going to be a few hot days. 

Quite possible yes, but 06z GFS is also quite toasty for Wednesday into Saturday - using 18z 2mT at DCA:

99/101/102/97

I see what you mean on the 00z Euro... that is a big no thanks from me re 2mT.  Mid 100s?  Blech

[Paleocene]

5 minutes ago, Eskimo Joe said:

 

Yes more details on this please so I can replicate!

 

19 minutes ago, WxUSAF said:

Can you take some pics of the meadow area? What did you plant there? You converted turf grass to that ?

It doesn't look great this year because MBY has been relatively dry. Ignore my sad garden lol.

Basic story: we bought the house in 2022, very close to the Silver Spring metro in one of the nearby single family neighborhoods. It's on a roughly 50' x 200' lot, so it's a very deep narrow backyard behind the house. It was owned by an older gent who lived alone, and did the absolute bare minimum. I'm talking mow the lawn and that's it - he let a few azaleas grow, but didn't plant anything. Rhododendrons in the back quarter of the yard were overrun by wild grape and other vines. There was a mix of turf grass, weeds, and vines back there. But a lot of it was just urban/suburban weedy unkempt mess. 

In the summer of 2023 I noticed we had a decent number of fireflies. Less than what I shared in that video above, but enough to notice and appreciate. So I looked into a bit and decided to just let the back quarter of the yard be "wild" - I don't cut the grass, and I use a weedwacker on the more annoying vines that are trying to climb shrubs and trees I'm planting. The grass is scrubby this year because of a lack of rain - in previous years it was more of a rolling field of grain type look.

My brother lives in upstate NY on 16 acres of former farm field which is now a meadow slowly returning to forest. He has an absolutely insane number of fireflies that put on a show like in my video, but scaled up by 50x. So I'm trying to replicate that in miniature. I've added a few native trees (swamp white oak, tulip poplars that grow from seedlings and are now 10+ feet tall just in a few years, red maple, red and white oak); and reclaimed the rhododendrons. I think the other important thing I do is drop a bunch of leaf litter back there. Instead of putting it all on the curb in November, I go back there and dump 4-5x trash cans worth of birch, poplar, oak, etc leaves all over the place.  

I'm a bit worried that the "meadow" is this year losing a battle to wild grape, morning glory, virginia creeper, and even some english ivy that is just everywhere around here. I may have to eventually rent some sort of turf grinder/soil churner type device and replant wildflowers and native grasses.   However, 2026 is definitely the best firefly year of the past 4.  

Sorry for the digression! Back to weather. It's nice out because it's cloudy.

[yoda]

Even 06z Euro has low 100s for most of the region on Wednesday 

 

[Eskimo Joe]

4 minutes ago, yoda said:

Quite possible yes, but 06z GFS is also quite toasty for Wednesday into Saturday - using 18z 2mT at DCA:

99/101/102/97

I see what you mean on the 00z Euro... that is a big no thanks from me re 2mT.  Mid 100s?  Blech

Honestly, I wouldn't mind a few days near 100°. Even though I work outside it's nice to feel the heat for a few days. It lets you know you're alive, and this airmass seems to be more NW flow than some soupy tropical cluster. Those days are miserable.

[winter_warlock]

Looking like we may hit 100 here( central md)  by next Thursday according to LWX..

 

Heat will likely steadily ramp up Tuesday through Thursday as the
surface high slides offshore and the upper ridge expands eastward
from the Ohio Valley. While there is still some ensemble spread in
temperature data, it appears highs will be well into the 90s by mid
week. Humidity will also be elevated, so heat index values could top
100 by Wednesday and Thursday. The strength and position of the
ridge will determine if subsidence wins out, or if there might be an
opportunity for diurnal thunderstorm development. At this time,
thunderstorm prospects appear isolated through Thursday

[winter_warlock]

1 hour ago, yoda said:

Even 06z Euro has low 100s for most of the region on Wednesday 

 

 Yep gonna be a scorcher!!!

[wxmeddler]

As long as the dew point isn't 65+

[BlizzardNole]

This is gonna be such a brutal summer.  I'm thinking 15 or more 95-degree days, five 100s, and one 105.  Very little rainfall too.  I think many of us will be happy when fall gets here.

Filtered sun and 80/67

[Eskimo Joe]

9 minutes ago, wxmeddler said:

As long as the dew point isn't 65+

Let's go for broke. 75 dews and a stout temp inversion. Like heat wave 1993.

[wxmeddler]

25 minutes ago, Eskimo Joe said:

Let's go for broke. 75 dews and a stout temp inversion. Like heat wave 1993.

So what I'm hearing when you say that is that you're asking for a heat dome derecho.

[Eskimo Joe]

1 minute ago, wxmeddler said:

So what I'm hearing when you say that is that you're asking for a heat dome derecho.

My goal is to never have to use our damage assessment or debris management plan, so no.

[yoda]

Just checking what the 12z ICON days for fun for Wednesday to Friday at DCA... oh.

103/106/106... HI values 110-115

[vortex95]

4 hours ago, Eskimo Joe said:

Not sold on widespread 100s. It's several days out, some models like the Euro have a known mid range heat bias, and it's rare to get an airmass that supports many 100+ degree air temperatures readings. We probably won't know until next Tuesday if we're going to have a legit heat wave on our hands, or if this is just going to be a few hot days. 

Be wary of 2m temps more than 5 days out.  They do not incorporate MOS climo into their values.  I've seen the GFS 2m a number of times fcst 110 F at BOS a week out, and the all-time high in New England is 107 F.

That being said, does the ECMWF and other global models have MOS like the GFS?  If so, where can the output be found?

[87storms]

5 hours ago, yoda said:

Even 06z Euro has low 100s for most of the region on Wednesday 

 

Only gonna be in the 90s here in sunny Vegas next week. Breeze has been kicking up here and gonna ramp up this weekend…big trough moving into the northwest which should translate east I’m assuming by next weekend which is when Vegas starts to heat up again.

[Mrs.J]

Hoping all the garden and yard work I just did lets Mother Nature give me some good soaking rain. I watered all the grass seed I put down but would like some help with that. 

[yoda]

LWX afternoon AFD already mentioning low 100s @Eskimo Joe

Wednesday through Friday will be the peak of the heat with
highs for most in the upper 90s and lower 100s. Heat indices
each afternoon with run between 102-107 degrees with a few
readings around 110 along the immediate I-95 metro corridor and
down across the VA Piedmont region. Minimal relief is expected
across the mountains with highs in the mid 80s to low 90s and
heat indices in the mid to upper 90s as the heat peaks mid to
late week. No relief at night either with widespread lows in the
upper 60s to mid 70s (upper 70s-80 urban areas) Wednesday
through Saturday. More at weather.gov/lwx/heat.

Even with that said, there still remains some spread in temperature
data mid to late next week. Some of this is due top the
placement and positioning of the ridge along with any t-storm
chances that may develop late next week.

Right now, any convection looks to be tied to the mountains
Wednesday and Thursday due in part to the terrain influence. With
excessive heat and humidity there will be plenty of instability to
work with. You combine this with any potential ripples of low
pressure moving around the ridge or a bay/river breeze to get
convective development. This is illustrated by both the CSU/CIPS
outlooks along with Google WxNext AI model which suggest the risk
for severe weather during the Friday July 3rd and Saturday July 4
timeframe. Something we`ll continue to monitor in subsequent
forecast shifts. Historically, near record summer heat often
ends with widespread strong thunderstorm activity, and latest
guidance starts to break down the heat next weekend (July 4).

 

[kgottwald]

To hell with 73 degree dewpoints.

To hell with warm fronts.

To hell with walking half an hour home carrying a 12-pack of Cigar City Jai Alai and a frozen pizza.

To hell with sweat pouring down my face and making my eyes burn.

Let me sleep until autumn.

[kgottwald]

Also, to hell with Bad Gateway Errors!

[Eskimo Joe]

11 hours ago, kgottwald said:

Also, to hell with Bad Gateway Errors!

It builds character.

[yoda]

And here we go.... note this is DC metro

34 35 36

---

560
FPUS51 KLWX 271157
ZFPLWX

Zone Forecast Product
National Weather Service Baltimore MD/Washington DC
756 AM EDT Sat Jun 27 2026

DCZ001-271500-
District of Columbia-
Including the cities of Adams Morgan and Washington
756 AM EDT Sat Jun 27 2026

.TODAY...Mostly cloudy with scattered showers. Isolated
thunderstorms this morning, then scattered thunderstorms this
afternoon. Highs in the lower 80s. Southeast winds around 5 mph.
Chance of rain 50 percent.
.TONIGHT...Mostly cloudy. Numerous showers and scattered
thunderstorms in the evening, then scattered showers with
isolated thunderstorms after midnight. Patchy fog after midnight.
Lows in the upper 60s. Southeast winds around 5 mph in the
evening, becoming light and variable. Chance of rain 60 percent.
.SUNDAY...Mostly cloudy. Patchy fog in the morning. Isolated
showers in the morning, then numerous showers and scattered
thunderstorms in the afternoon. Highs in the mid 80s. Northeast
winds around 5 mph. Chance of rain 70 percent.
.SUNDAY NIGHT...Mostly cloudy with scattered showers and
thunderstorms in the evening, then partly cloudy after midnight.
Lows in the upper 60s. East winds around 5 mph in the evening,
becoming light and variable. Chance of rain 50 percent.
.MONDAY...Mostly sunny. Highs in the upper 80s. East winds around
5 mph.
.MONDAY NIGHT...Mostly clear. Lows in the upper 60s.
.TUESDAY...Sunny. Highs in the lower 90s.
.TUESDAY NIGHT...Mostly clear. Lows in the lower 70s.
.WEDNESDAY...Sunny, hot with highs in the upper 90s.
.WEDNESDAY NIGHT...Mostly clear. Lows in the upper 70s.
.THURSDAY...Sunny, hot with highs 100 to 105. Heat index values
up to 110.
.THURSDAY NIGHT...Mostly clear. Lows in the lower 80s.
.FRIDAY...Sunny, hot with highs 100 to 105. Heat index values up
to 110.

 

[dailylurker]

More brutally boring weather ^ lol. Looks like a good day to go crabbing. I'm hoping to sit on my screen porch and eat crabs later on while it's storming.