July Discobs 2026

[SolidIcewx]

2 minutes ago, MDphotog said:

This is such a great storm in Frederick, we have had lightning and thunder for at least 2hrs, really intense in the last 45mins.

 

Share with us in the beltway!

[Eskimo Joe]

11 minutes ago, yoda said:

Does Radarscope overdo the hail stuff? Says hail 2.75" on the warned storm... is that like max possible hail?

I've always cut those hail estimates in half and it works well for me.

[SnowenOutThere]

8 minutes ago, wxmeddler said:

Concerning...Severe potential...Watch likely
Valid 091805Z - 092000Z
Probability of Watch Issuance...80 percent

SUMMARY...Damaging wind gusts are possible as convection continues to intensify and move eastward this afternoon. A watch is likely.

DISCUSSION...Convection along a stationary boundary has shown modest intensification over the last hour near the MD/PA border. Additional convection is developing along the Blue Ridge. Sufficiently strong westerly winds across the Ridge will eventually move convection to the east. Furthermore, around 30 kt of effective shear will be present allowing for stronger storm cells and linear structures. Low-level lapse rates will continue to steepen this afternoon, though cloud cover has been greater in the vicinity of the Chesapeake Bay. Given the potential for one or more clusters to evolve this afternoon, a watch is likely to address the threat for damaging wind gusts.

..Wendt/Hart.. 07/09/2026

Checked the mesoscale discussion and didn’t realize we are well over 3000 CAPE currently in the region. You can see the best forcing is still out in WV with all the pop up storms before it moves east later. Got LL lapse rates heading to 8+ c/km. Our hodographs are weak but not terrible too. I made a more detailed write up of today last night in the severe thread but we could see something interesting today. Got a severe T-storm parameter of 4 right now as well!

[yoda]

21 minutes ago, wxmeddler said:

Concerning...Severe potential...Watch likely
Valid 091805Z - 092000Z
Probability of Watch Issuance...80 percent

SUMMARY...Damaging wind gusts are possible as convection continues to intensify and move eastward this afternoon. A watch is likely.

DISCUSSION...Convection along a stationary boundary has shown modest intensification over the last hour near the MD/PA border. Additional convection is developing along the Blue Ridge. Sufficiently strong westerly winds across the Ridge will eventually move convection to the east. Furthermore, around 30 kt of effective shear will be present allowing for stronger storm cells and linear structures. Low-level lapse rates will continue to steepen this afternoon, though cloud cover has been greater in the vicinity of the Chesapeake Bay. Given the potential for one or more clusters to evolve this afternoon, a watch is likely to address the threat for damaging wind gusts.

..Wendt/Hart.. 07/09/2026

Watch up until 10pm 

[Lucketts]

17 minutes ago, yoda said:

Looks like a slight bow near Lucketts

Definitely had a good t storm.

Heavy for a solid 15 minutes and still raining now.

[Lucketts]

Not exactly a rain gauge but this is our rain since Monday not counting evaporation. 

[dailylurker]

18 minutes ago, MDphotog said:

This is such a great storm in Frederick, we have had lightning and thunder for at least 2hrs, really intense in the last 45mins.

 

Story of the summer lol. I'm out doing an after work hike in Crownsville. I've had a couple showers pop up right overhead. Hopefully is goes nuts and floods us out. I just need some sort of exciting weather.

[CAPE]

25 minutes ago, SnowenOutThere said:

I’ve said this in the past but man flash flood watches should not have been discontinued. A flood watch is far too broad of a product that tries to handle widespread synoptic setups that are more river flood based and pop up storms that dump over a small area and cause extreme flash flooding. 

A flood watch is perfectly adequate. Flash floods occur very quickly, and generally happen in specific locales- low lying areas(esp near rivers), densely populated urbanized areas, etc. Given the localized nature of developing storms that may produce flash flooding, and the specific areas that are susceptible to it, it is difficult to put a 'broad' flash flood watch in effect. Thus flash flood warnings are issued in these localized areas when a storm capable of producing such is imminent.

[WxUSAF]

It’s gonna rain 

[MN Transplant]

C'mon little outflow boundary

[SolidIcewx]

11 minutes ago, MN Transplant said:

C'mon little outflow boundary

Hopefully causes flare ups in the metro. I like the look and placement of the boundary 

[Mrs.J]

Was out in New Market, had a massage appointment. Thundered the entire hour love it! Came home and under a Flash Flood Warning and my gauge is at 3.79”. Had to cross over 270 and it is a parking lot North and South. We have not had rain like that for quite a while. 

[Herb@MAWS]

Looks like a few more counties added to the severe t-storm watch. Distant thunder past 20 mins here in Columbia. 

[MN Transplant]

10 minutes ago, SolidIcewx said:

Hopefully causes flare ups in the metro. I like the look and placement of the boundary 

We should probably be looking at the stuff initiating out by Dulles

[wxmeddler]

23 minutes ago, MN Transplant said:

C'mon little outflow boundary

Looks like you're getting your wish.

[wxmeddler]

6 minutes ago, Mrs.J said:

Was out in New Market, had a massage appointment. Thundered the entire hour love it! Came home and under a Flash Flood Warning and my gauge is at 3.79”. Had to cross over 270 and it is a parking lot North and South. We have not had rain like that for quite a while. 

@Mrs.J Can I send this into the NWS and the county EM? 

[Paleocene]

Lots of booming and darkness to my west near downtown silver spring. Hoping the cell parking over the 270/495 split comes this way.

[Mrs.J]

4 minutes ago, wxmeddler said:

@Mrs.J Can I send this into the NWS and the county EM? 

Absolutely! If you want my spotter number is FK042 my station is currently at 3.79"and located in Ballenger Creek SW of Downtown Frederick. The two links in my signature should show my exact location.

Actually I am close to New Design Rd and English Muffin Way where it is blocked off because of flooding where a car started to sink. Frederick Scanner has more details on it. 

[AlexD1990]

11 minutes ago, Mrs.J said:

Absolutely! If you want my spotter number is FK042 my station is currently at 3.79"and located in Ballenger Creek SW of Downtown Frederick. The two links in my signature should show my exact location.

Actually I am close to New Design Rd and English Muffin Way where it is blocked off because of flooding where a car started to sink. Frederick Scanner has more details on it. 

off topic but i love that there is road called English Muffin Way

[Mrs.J]

7 minutes ago, AlexD1990 said:

off topic but i love that there is road called English Muffin Way

We have a Bakery that makes Thomas English Muffins on the road hence the name.  Nice smell unless they burn them. 

And off topic myself but see you live in Lewes. We are coming over to do a house/pet stay for 11 days in Lewes next week. We were there last year for a day but are looking for more things to do in the area to fill the days. We will be house sitting 2 cats so do not have to stay too close. 

[SomeguyfromTakomaPark]

Tropical downpours in takoma park 

[The Dude]

Great little storm.  1.40" in just 20 minutes with an peak rate of 11.7"/hr.  About a half dozen bolts within half a mile.  Not much in the way of wind.  Looks like more is on the way.

[WxUSAF]

52 minutes ago, WxUSAF said:

It’s gonna rain 

MoCo cell stole all my juice

[Paleocene]

4 minutes ago, SomeguyfromTakomaPark said:

Tropical downpours in takoma park 

Dumpage

[MN Transplant]

Me watching radar

[SolidIcewx]

1 minute ago, MN Transplant said:

Me watching radar

Pretty accurate. Id be surprised if we didn’t get dumped on at some point this evening.