weatherCCB Posted 17 hours ago Share Posted 17 hours ago Rain has stopped here. 2.1” in 70 minutes Link to comment Share on other sites More sharing options...
nw baltimore wx Posted 17 hours ago Share Posted 17 hours ago 26 minutes ago, WxUSAF said: I’m at OCMD today and it seems ok on RadarScope? 12 minutes ago, CAPE said: Its fine on COD. It is often broken for one reason or another, but not now. NWS radar is garbage, so if you are using that I am not surprised if it doesn't work right lol I’m at Broadkill Beach and also on RadarScope. There have been a few downpours here today that weren’t on radar. Not a big deal. They must have just been very localized. 1 Link to comment Share on other sites More sharing options...
donsutherland1 Posted 16 hours ago Share Posted 16 hours ago College Park picked up an hourly record 2.71". 3 1 Link to comment Share on other sites More sharing options...
Herb@MAWS Posted 16 hours ago Share Posted 16 hours ago 0.40” in today’s late afternoon storm. 6.37” for July so far. 1 Link to comment Share on other sites More sharing options...
Eskimo Joe Posted 14 hours ago Share Posted 14 hours ago 4 hours ago, rjvanals said: That 10 foot rise on Sligo Creek is impressive/scary That was from one of our county flood sensors near Sligo Creek Pkwy & New Hampshire Ave (MD 650). I've never seen water levels rise that quickly at that location. 4 hours ago, batmanbrad said: even more nastiness, yikes: Flash Flood Statement National Weather Service Baltimore MD/Washington DC 540 PM EDT Sat Jul 19 2025 DCC001-MDC031-033-VAC059-200015- /O.CON.KLWX.FF.W.0115.000000T0000Z-250720T0015Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ District of Columbia DC-Montgomery MD-Prince Georges MD-Fairfax VA- 540 PM EDT Sat Jul 19 2025 ...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 815 PM EDT THIS EVENING FOR THE NORTHWESTERN DISTRICT OF COLUMBIA AND SOUTHEASTERN MONTGOMERY, PRINCE GEORGES AND FAIRFAX COUNTIES... At 540 PM EDT, emergency management reported thunderstorms producing heavy rain in Emergency management reports water rescues in Takoma Park and Silver Spring area. Flood sensors on SLigo Creek at SLigo Creek Parkway and New Hampshire Avenue show a 10 ft rise in 30 mins. . Between 2 and 3.5 inches of rain have fallen. The expected rainfall rate is 1 to 2 inches in 30 minutes. Additional rainfall amounts of 1 to 2 inches are possible in the warned area. Flash flooding is already occurring. HAZARD...Life threatening flash flooding. Thunderstorms producing flash flooding. SOURCE...Emergency management reported. IMPACT...Life threatening flash flooding of creeks and streams, urban areas, highways, streets and underpasses. Some locations that will experience flash flooding include... Bethesda... College Park... Greenbelt... Langley Park... Beltsville... Bladensburg... Fort Totten... American Legion Bridge... University of Maryland... Potomac... North Bethesda... Landover... Hyattsville... Takoma Park... Wolf Trap... East Riverdale... Great Falls... Adelphi... Kemp Mill... New Carrollton... I actually wound up requesting the upgrade to a flash flood emergency. Our flood sensors inside the beltway just went bonkers so fast. Cabin John Branch, Rock Creek, Sligo Creek, and Northwest Branch just started raging in under half an hour. 4 hours ago, esullivan said: 10 feet rise in Rock Creek park is very scary. The don’t close the inbound roads like Broad Branch (live next to Broad Branch tributary). Nonstop alerts here in DC. I hope everyone is safe in the park. This was the worst flash flood event I have ever worked in my entire career. Had this persisted for just another 20 to 30 minutes, we would've had real problems in Montgomery County. The flood sensors we installed, combined with the Layhill and College Park mesonet sites raised alarm bells quickly, which resulted in us getting roads closed and water rescue assets staffed quickly. It was one of the few times in my career that I actually felt helpless as things went sideways. 20 4 Link to comment Share on other sites More sharing options...
SomeguyfromTakomaPark Posted 14 hours ago Share Posted 14 hours ago Wild pics from takoma park and silver spring. Sligo parkway was part of the creek today. 1 Link to comment Share on other sites More sharing options...
PrinceFrederickWx Posted 14 hours ago Share Posted 14 hours ago 0.97” from the storm tonight, 8.13” for the month so far. 1 Link to comment Share on other sites More sharing options...
Jrlg1181 Posted 14 hours ago Share Posted 14 hours ago 2 hours ago, donsutherland1 said: College Park picked up an hourly record 2.71". Impressive indeed, but am i reading/understanding that graph wrong ? Too much work must be frying my brain - Or too much alcohol after work , Is College Park semi arid...? Is this a new recording station ? 1976 to 2025 ? Link to comment Share on other sites More sharing options...
Eskimo Joe Posted 14 hours ago Share Posted 14 hours ago 12 minutes ago, SomeguyfromTakomaPark said: Wild pics from takoma park and silver spring. Sligo parkway was part of the creek today. Just went gangbusters. That is one of the most vulnerable watersheds in Montgomery County. Terrain, loose soils and urbanization are tremendous stressors on that waterway. 1 Link to comment Share on other sites More sharing options...
SnowtoRain Posted 14 hours ago Share Posted 14 hours ago 0.71", 4.56" month, 28.55" ytd Link to comment Share on other sites More sharing options...
hstorm Posted 13 hours ago Share Posted 13 hours ago 4 hours ago, VA Mad Man said: DUMPING rain here in Great Falls, VA. Have never seen this type of deluge before here. It was incredible. Also have never seen rain like that here. Link to comment Share on other sites More sharing options...
WxWatcher007 Posted 12 hours ago Share Posted 12 hours ago 1 hour ago, Eskimo Joe said: That was from one of our county flood sensors near Sligo Creek Pkwy & New Hampshire Ave (MD 650). I've never seen water levels rise that quickly at that location. I actually wound up requesting the upgrade to a flash flood emergency. Our flood sensors inside the beltway just went bonkers so fast. Cabin John Branch, Rock Creek, Sligo Creek, and Northwest Branch just started raging in under half an hour. This was the worst flash flood event I have ever worked in my entire career. Had this persisted for just another 20 to 30 minutes, we would've had real problems in Montgomery County. The flood sensors we installed, combined with the Layhill and College Park mesonet sites raised alarm bells quickly, which resulted in us getting roads closed and water rescue assets staffed quickly. It was one of the few times in my career that I actually felt helpless as things went sideways. And if not for the foresight of installing those sensors in vulnerable areas, you guys may not have been able to respond as quickly as you did. Infrastructure matters. 4 2 Link to comment Share on other sites More sharing options...
donsutherland1 Posted 10 hours ago Share Posted 10 hours ago 3 hours ago, Jrlg1181 said: Impressive indeed, but am i reading/understanding that graph wrong ? Too much work must be frying my brain - Or too much alcohol after work , Is College Park semi arid...? Is this a new recording station ? 1976 to 2025 ? Yes, it’s a fairly new station. Link to comment Share on other sites More sharing options...
WxUSAF Posted 5 hours ago Share Posted 5 hours ago The anvil top of that storm in northern Frederick county as seen from OCMD 7 Link to comment Share on other sites More sharing options...
dailylurker Posted 4 hours ago Share Posted 4 hours ago 32 minutes ago, WxUSAF said: The anvil top of that storm in northern Frederick county as seen from OCMD Really? There's a shower about 70 miles to your NW. That might be what you see. The furthest storm I've seen is about 120 miles. OC to Frederick is far. 2 Link to comment Share on other sites More sharing options...
wxdude64 Posted 4 hours ago Share Posted 4 hours ago JUST missed a 'warm minimum' for the date. 68.7 low, record is 69 from 1986. Currently 71.1/68.9 at 8:10 am. Link to comment Share on other sites More sharing options...
frd Posted 4 hours ago Share Posted 4 hours ago Rather remarkable, no wonder why so many reports of flooding in the area this past month. This trend looks to continue despite a break or two. 3 1 Link to comment Share on other sites More sharing options...
frd Posted 4 hours ago Share Posted 4 hours ago Mount Holly states there will be some mixing today during the afternoon hours, so dew points may not reach extreme levels at that time. Presently my DP is 76, very steamy ! Also, seeing some storms form in North central Maryland moving East. Worse area appears to be the Delmarva region where it almost reaches heat advisory levels. Increasing southwest flow will usher a warmer and more humid airmass into the region. Highs today will top off in the upper 80s to around 90. Surface dew points will generally be in the low to mid 70s, but afternoon mixing should keep dew points from getting into the upper 70s. Will blend the CONSALL and NBM guidance for dew points today, and that will keep dew points from getting as high as the NBM. Max heat index values will be in the mid to upper 90s, and near 100 in Delmarva, which will be just below Heat Advisory criteria. Link to comment Share on other sites More sharing options...
WxUSAF Posted 4 hours ago Share Posted 4 hours ago 29 minutes ago, dailylurker said: Really? There's a shower about 70 miles to your NW. That might be what you see. The furthest storm I've seen is about 120 miles. OC to Frederick is far. I don’t see anything else on radar? It is really far. But that’s the right direction. 2 Link to comment Share on other sites More sharing options...
frd Posted 4 hours ago Share Posted 4 hours ago 31 minutes ago, dailylurker said: Really? There's a shower about 70 miles to your NW. That might be what you see. The furthest storm I've seen is about 120 miles. OC to Frederick is far. Thats crazy, there is a storm as you mentioned to his NW, to me it looks like in North centreal MD moving East. 1 Link to comment Share on other sites More sharing options...
dailylurker Posted 4 hours ago Share Posted 4 hours ago 5 minutes ago, WxUSAF said: I don’t see anything else on radar? It is really far. But that’s the right direction. Their was a dieing heavy shower about 70 miles to your NW. It could be the Carroll County stuff. I was in Easton a few years ago. I could see the anvil from a storm in Central PA. I find that kinds stuff interesting. 2 Link to comment Share on other sites More sharing options...
BlizzardNole Posted 3 hours ago Share Posted 3 hours ago I'm looking forward to this break in humidity coming up but am smh at how we just went through two weeks of super high precipitable water with only a half inch of rain to show for it. I just watered the garden and damn the ground is rock hard. Last real rain was July 1-2, and 0.5 since then. Now things are really going to get ugly with almost no chance of rain for weeks. Link to comment Share on other sites More sharing options...
mappy Posted 3 hours ago Share Posted 3 hours ago 10 hours ago, Eskimo Joe said: That was from one of our county flood sensors near Sligo Creek Pkwy & New Hampshire Ave (MD 650). I've never seen water levels rise that quickly at that location. I actually wound up requesting the upgrade to a flash flood emergency. Our flood sensors inside the beltway just went bonkers so fast. Cabin John Branch, Rock Creek, Sligo Creek, and Northwest Branch just started raging in under half an hour. This was the worst flash flood event I have ever worked in my entire career. Had this persisted for just another 20 to 30 minutes, we would've had real problems in Montgomery County. The flood sensors we installed, combined with the Layhill and College Park mesonet sites raised alarm bells quickly, which resulted in us getting roads closed and water rescue assets staffed quickly. It was one of the few times in my career that I actually felt helpless as things went sideways. Thanks for the hard work with installing those sensors and being a voice to issue the emergency warning! 7 Link to comment Share on other sites More sharing options...
Random Chaos Posted 2 hours ago Share Posted 2 hours ago Pure steam outside. 93% humidity. Temperature 80.2 dp 78.0. Link to comment Share on other sites More sharing options...
nw baltimore wx Posted 13 minutes ago Share Posted 13 minutes ago 5 hours ago, WxUSAF said: The anvil top of that storm in northern Frederick county as seen from OCMD You can see it because the earth is flat. Link to comment Share on other sites More sharing options...
Weather Will Posted just now Share Posted just now As advertised, September like mornings coming! Below, WB 3K NAM for Tuesday. Enjoy!!! Link to comment Share on other sites More sharing options...
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