NorthArlington101 Posted June 25, 2020 Share Posted June 25, 2020 Outflow boundary from the storm is seriously gusty. Looks like I’m getting fringed though. Link to comment Share on other sites More sharing options...
87storms Posted June 25, 2020 Share Posted June 25, 2020 hail here Link to comment Share on other sites More sharing options...
yoda Posted June 25, 2020 Share Posted June 25, 2020 70mph wind gust reported by mesonet in Gaithersburg, MD 68mph wind gust reported by mesonet 2 N Germantown, MD Link to comment Share on other sites More sharing options...
esullivan Posted June 25, 2020 Share Posted June 25, 2020 Great storm in NW. Hail - good winds - white out! Link to comment Share on other sites More sharing options...
yoda Posted June 25, 2020 Share Posted June 25, 2020 21 minutes ago, NorthArlington101 said: Outflow boundary from the storm is seriously gusty. Looks like I’m getting fringed though. Pretty cool to see on radarscope... from W DC into N VA Link to comment Share on other sites More sharing options...
09-10 analogy Posted June 25, 2020 Share Posted June 25, 2020 Got in on one for a change. Small hail, torrential if brief rain, outflow gusts probably over 50. Sky was semi bright the whole time. Probably a nice rainbow somewhere. Link to comment Share on other sites More sharing options...
The Dude Posted June 25, 2020 Share Posted June 25, 2020 Great storm. Hail core just missed me to the south, but I got torrential rain (maxing out at 9.5 in/hr) and some good wind gusts likely around 40 mph. Link to comment Share on other sites More sharing options...
Eskimo Joe Posted June 25, 2020 Share Posted June 25, 2020 23 minutes ago, yoda said: 70mph wind gust reported by mesonet in Gaithersburg, MD 68mph wind gust reported by mesonet 2 N Germantown, MD M56mph at our EOC wx station in Gaithersburg. Link to comment Share on other sites More sharing options...
r3w Posted June 25, 2020 Share Posted June 25, 2020 Nothing here in Calvert. Potomac acting like a forcefield. Looked pretty decent on radar though, glad that some of us are getting some much needed excitement. Link to comment Share on other sites More sharing options...
Kmlwx Posted June 25, 2020 Author Share Posted June 25, 2020 Pretty good storm *sub severe* here in the Arundel Mills area. Sneaky day! Link to comment Share on other sites More sharing options...
JakkelWx Posted June 25, 2020 Share Posted June 25, 2020 What year during the 2000s and 2010s had the most severe weather during the month of July, and how is that year different from this year in regards to upper air patterns, ENSO, etc Link to comment Share on other sites More sharing options...
NoVaWx Posted June 26, 2020 Share Posted June 26, 2020 Was in Bethesda had a nice storm with hail. Rare for me to see hail. Link to comment Share on other sites More sharing options...
wawarriors4 Posted June 26, 2020 Share Posted June 26, 2020 Good pic of the storm moving into Stafford 4 Link to comment Share on other sites More sharing options...
Eskimo Joe Posted June 26, 2020 Share Posted June 26, 2020 12 hours ago, Kmlwx said: Pretty good storm *sub severe* here in the Arundel Mills area. Sneaky day! Yea it definitely was a sneaky day. We get these events where it looks pretty benign and then you get a lone cell or three that would end up verifying a slight risk and a WW. Other times, it's a textbook setup and the entire subforum whiffs. Link to comment Share on other sites More sharing options...
high risk Posted June 26, 2020 Share Posted June 26, 2020 18 minutes ago, Eskimo Joe said: Yea it definitely was a sneaky day. We get these events where it looks pretty benign and then you get a lone cell or three that would end up verifying a slight risk and a WW. Other times, it's a textbook setup and the entire subforum whiffs. The one thing we had yesterday that we hadn't had here in a while was good flow aloft on a storm day. We had about 90 kt at jet level Thursday afternoon. Link to comment Share on other sites More sharing options...
Kmlwx Posted June 26, 2020 Author Share Posted June 26, 2020 19 minutes ago, Eskimo Joe said: Yea it definitely was a sneaky day. We get these events where it looks pretty benign and then you get a lone cell or three that would end up verifying a slight risk and a WW. Other times, it's a textbook setup and the entire subforum whiffs. Good example of how it only takes one or two cells to make or break a day for individual backyards. Big factor is WHERE the cells go. Had the cells stayed over the mountains or cut up into PA before coming into the urbanized areas - would have been called a whiff. But it went through the metro area - so it gets a higher mark simply because of the location. I probably would have gotten a better dose of the storm had I been at my parent's house in Colesville *eyeroll* Link to comment Share on other sites More sharing options...
Kmlwx Posted June 26, 2020 Author Share Posted June 26, 2020 Just now, high risk said: The one thing we had yesterday that we hadn't had here in a while was good flow aloft on a storm day. We had about 90 kt at jet level Thursday afternoon. Looking at the CAMs - I'm not sure the marginal needs to be as far south as it is for tomorrow. I think most of us may even stay high and dry. I can see why there's a marginal for Sunday, though. Link to comment Share on other sites More sharing options...
Eskimo Joe Posted June 26, 2020 Share Posted June 26, 2020 1 minute ago, Kmlwx said: Good example of how it only takes one or two cells to make or break a day for individual backyards. Big factor is WHERE the cells go. Had the cells stayed over the mountains or cut up into PA before coming into the urbanized areas - would have been called a whiff. But it went through the metro area - so it gets a higher mark simply because of the location. I probably would have gotten a better dose of the storm had I been at my parent's house in Colesville *eyeroll* If you re-rack the radar data from yesterday, it all started with those two cells in Cumberland that rode an outflow boundary out of Frederick. Link to comment Share on other sites More sharing options...
Kmlwx Posted June 26, 2020 Author Share Posted June 26, 2020 15 minutes ago, Eskimo Joe said: If you re-rack the radar data from yesterday, it all started with those two cells in Cumberland that rode an outflow boundary out of Frederick. I'm not just saying this - but when I glanced at radar before leaving Colesville to head to my place - I had a feeling there might be a surprise in the works when I saw those lone cells getting going to the west. Had that trajectory/feeling of something that could propagate towards the metros. Link to comment Share on other sites More sharing options...
Eskimo Joe Posted June 26, 2020 Share Posted June 26, 2020 Just now, Kmlwx said: I'm not just saying this - but when I glanced at radar before leaving Colesville to head to my place - I had a feeling there might be a surprise in the works when I saw those lone cells getting going to the west. Had that trajectory/feeling of something that could propagate towards the metros. Yea when those two cells were maintaining updrafts in an area of limited instability, you knew that was going to be a sign someone was going to win. Link to comment Share on other sites More sharing options...
George BM Posted June 26, 2020 Share Posted June 26, 2020 3 minutes ago, Kmlwx said: I'm not just saying this - but when I glanced at radar before leaving Colesville to head to my place - I had a feeling there might be a surprise in the works when I saw those lone cells getting going to the west. Had that trajectory/feeling of something that could propagate towards the metros. 2 minutes ago, Eskimo Joe said: Yea when those two cells were maintaining updrafts in an area of limited instability, you knew that was going to be a sign someone was going to win. Indeed. Cells taking advantage of decent speed shear with otherwise modest instability would do that. Link to comment Share on other sites More sharing options...
Kmlwx Posted June 26, 2020 Author Share Posted June 26, 2020 2 minutes ago, Eskimo Joe said: Yea when those two cells were maintaining updrafts in an area of limited instability, you knew that was going to be a sign someone was going to win. We're all still waiting for our next region-wide event, though. We're starting to get into the time of year when pulse severe dominates generally. There can be exceptions, of course...but one reason I really like April to June is that you can generally get better shear and such. September can be really good too if things fall right. I know I've said this 100+ times - but I REALLY think (even if only anecdotally still) that we had more regionwide squall lines in the 90s and earlier 2000s. Not necessarily derecho-quality events - but just solid lines extending from the M/D line down into VA. Seems we have become a more line segment or lone cells kind of area. I'm sure some of this is just me remembering wrong - and maybe also lower quality radar sources when I was a kid (I relied on the local forecast on TWC). Link to comment Share on other sites More sharing options...
osfan24 Posted June 26, 2020 Share Posted June 26, 2020 25 minutes ago, Kmlwx said: We're all still waiting for our next region-wide event, though. We're starting to get into the time of year when pulse severe dominates generally. There can be exceptions, of course...but one reason I really like April to June is that you can generally get better shear and such. September can be really good too if things fall right. I know I've said this 100+ times - but I REALLY think (even if only anecdotally still) that we had more regionwide squall lines in the 90s and earlier 2000s. Not necessarily derecho-quality events - but just solid lines extending from the M/D line down into VA. Seems we have become a more line segment or lone cells kind of area. I'm sure some of this is just me remembering wrong - and maybe also lower quality radar sources when I was a kid (I relied on the local forecast on TWC). I feel like squall lines were also more frequent in the 90s as well. Nice day yesterday for the Moco to Laurel crew. That was a nice storm. Link to comment Share on other sites More sharing options...
AdamHLG Posted June 26, 2020 Share Posted June 26, 2020 29 minutes ago, Kmlwx said: We're all still waiting for our next region-wide event, though. We're starting to get into the time of year when pulse severe dominates generally. There can be exceptions, of course...but one reason I really like April to June is that you can generally get better shear and such. September can be really good too if things fall right. Given the fact it is 2020, the next region-wide event might just be a named storm. After the dust settles down in the tropics. 1 Link to comment Share on other sites More sharing options...
high risk Posted June 26, 2020 Share Posted June 26, 2020 2 hours ago, Kmlwx said: Looking at the CAMs - I'm not sure the marginal needs to be as far south as it is for tomorrow. I think most of us may even stay high and dry. I can see why there's a marginal for Sunday, though. 12z NAM nest and HRRR both develop storms Saturday in the local area. Instability is limited, and shear is marginal, but there will be a lot of downdraft cape. Personally, I'm not very enthused, because the low level air will be so dry, but I'm ok with the MRGL. Sunday could be good if we lose the ugly warm mid-level temperatures being progged. Link to comment Share on other sites More sharing options...
ErinInTheSky Posted June 26, 2020 Share Posted June 26, 2020 This year has been so far the best thunderstorm year since I’ve moved here. I missed semi-daily thunder, it’s the one thing about Louisiana I miss most. 1 Link to comment Share on other sites More sharing options...
yoda Posted June 26, 2020 Share Posted June 26, 2020 SLGT risk was moved south in the 1730z update to include all of northern into central MD into extreme N VA for wind Link to comment Share on other sites More sharing options...
Kmlwx Posted June 26, 2020 Author Share Posted June 26, 2020 2 hours ago, yoda said: SLGT risk was moved south in the 1730z update to include all of northern into central MD into extreme N VA for wind LWX says it's pretty conditional. Coverage looks sparse on the NAM nest. Link to comment Share on other sites More sharing options...
yoda Posted June 27, 2020 Share Posted June 27, 2020 3 hours ago, Kmlwx said: LWX says it's pretty conditional. Coverage looks sparse on the NAM nest. Guess we shall see... POPS actually went up to 40 percent for DCA on the 730 update from 0 percent at the 430 one. Will be isolated as you state most likely, but if any storm can get going... good chance of damaging wind gusts Link to comment Share on other sites More sharing options...
yoda Posted June 27, 2020 Share Posted June 27, 2020 Pretty active day per the LWX LSR summary yesterday for a MRGL risk of severe PRELIMINARY LOCAL STORM REPORT...SUMMARY NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 1110 PM EDT FRI JUN 26 2020 ..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON... ..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE.... ..REMARKS.. 0348 PM TSTM WND DMG 2 W MARTINSBURG 39.46N 78.01W 06/25/2020 BERKELEY WV 911 CALL CENTER TREE DOWN NEAR INTERSECTION OF TUSCARORA PIKE AND IROQUOIS TRAIL. 0351 PM TSTM WND DMG 1 NNW MARTINSBURG 39.47N 77.98W 06/25/2020 BERKELEY WV 911 CALL CENTER SEVERAL TREES DOWN BLOCKING ROADS IN THE MARTINSBURG AND HEDGESVILLE AREA. 0356 PM HAIL 2 NNW MARTINSBURG ARPT 39.43N 77.99W 06/25/2020 M0.75 INCH BERKELEY WV TRAINED SPOTTER 0358 PM HAIL 2 SSE MARTINSBURG 39.44N 77.96W 06/25/2020 E0.75 INCH BERKELEY WV TRAINED SPOTTER PEA TO DIME SIZE HAIL AND ESTIMATED 45-50 MPH WINDS 0404 PM HAIL 2 E MARTINSBURG 39.46N 77.94W 06/25/2020 M0.75 INCH BERKELEY WV NWS EMPLOYEE 0412 PM TSTM WND DMG 2 N SHEPHERDSTOWN 39.47N 77.81W 06/25/2020 JEFFERSON WV TRAINED SPOTTER SEVERAL LIMBS DOWN THAT WERE ABOUT 3-4" IN DIAMETER NEAR SHEPHERDSTOWN. 0507 PM HAIL 1 SE CHARLES TOWN 39.28N 77.85W 06/25/2020 M0.75 INCH JEFFERSON WV TRAINED SPOTTER 0519 PM HAIL 3 SSE MILLVILLE 39.26N 77.76W 06/25/2020 E0.75 INCH LOUDOUN VA AMATEUR RADIO 0519 PM HAIL 2 SE JEFFERSON 39.34N 77.51W 06/25/2020 M0.75 INCH FREDERICK MD TRAINED SPOTTER 0528 PM TSTM WND DMG 2 E PARK MILLS 39.30N 77.38W 06/25/2020 FREDERICK MD 911 CALL CENTER POWERLINES DOWN IN 8300 BLOCK OF PETERS ROAD. 0528 PM TSTM WND DMG 4 ESE MILLVILLE 39.26N 77.73W 06/25/2020 LOUDOUN VA 911 CALL CENTER SEVERAL TREES BLOWN DOWN ALONG HARPERS FERRY ROAD AND WHITE ROCK ROAD NEAR NEERSVILLE. 0530 PM TSTM WND DMG 3 ENE PARK MILLS 39.32N 77.36W 06/25/2020 FREDERICK MD 911 CALL CENTER TREE DOWN ON 3000 BLOCK OF THURSTON ROAD. 0537 PM TSTM WND DMG 1 NNW LEESBURG 39.12N 77.57W 06/25/2020 LOUDOUN VA EMERGENCY MNGR A SMALL PART OF THE ROOF OF IDA LEE PARK RECREATION CENTER WAS PEELED OFF. TREE DAMAGE IN THE AREA, INCLUDING ON VA-7 HARRY BYRD HIGHWAY NEAR BERLIN TURNPIKE. 0548 PM TSTM WND DMG PARK MILLS 39.30N 77.41W 06/25/2020 FREDERICK MD 911 CALL CENTER SEVERAL TREES DOWN IN THE PARK MILLS AREA. 0551 PM TSTM WND DMG GAITHERSBURG 39.14N 77.22W 06/25/2020 MONTGOMERY MD EMERGENCY MNGR MULTIPLE TREES AND WIRES DOWN IN 19900 BLOCK OF BEALLSVILLE ROAD. 0553 PM TSTM WND DMG 1 SE CLARKSBURG 39.23N 77.27W 06/25/2020 MONTGOMERY MD EMERGENCY MNGR TREE DOWN BLOCKING NORTHBOUND LANE OF MD 355 AT SHAWNEE LANE. 0604 PM TSTM WND DMG 1 NNW GERMANTOWN 39.20N 77.27W 06/25/2020 MONTGOMERY MD EMERGENCY MNGR TREE DOWN ON HOUSE IN 12800 BLOCK OF DUCK POND DRIVE. 0605 PM TSTM WND GST 2 N GERMANTOWN 39.20N 77.26W 06/25/2020 M68 MPH MONTGOMERY MD MESONET 0608 PM TSTM WND DMG 3 SSE DAMASCUS 39.24N 77.18W 06/25/2020 MONTGOMERY MD EMERGENCY MNGR TREES AND WIRES DOWN BLOCKING THE INTERSECTION OF WOODFIELD ROAD AND WATKINS ROAD. 0612 PM TSTM WND DMG GAITHERSBURG 39.14N 77.22W 06/25/2020 MONTGOMERY MD EMERGENCY MNGR MULTIPLE REPORTS OF TREES AND WIRES DOWN THROUGHOUT THE CITY OF GAITHERSBURG. 0615 PM TSTM WND GST GAITHERSBURG 39.14N 77.22W 06/25/2020 M70 MPH MONTGOMERY MD MESONET 0615 PM TSTM WND DMG 1 W ROCKVILLE 39.08N 77.16W 06/25/2020 MONTGOMERY MD TRAINED SPOTTER LARGE TREE UPROOTED IN 200 BLOCK OF AUTUMN WIND WAY. 0619 PM TSTM WND DMG 2 ENE POTOMAC 39.04N 77.16W 06/25/2020 MONTGOMERY MD EMERGENCY MNGR WIRES AND TREE BRANCHES DOWN NEAR INTERSECTION OF SEVEN LOCKS ROAD AND TUCKERMAN LANE. 0619 PM TSTM WND DMG ROCKVILLE 39.08N 77.15W 06/25/2020 MONTGOMERY MD EMERGENCY MNGR MULTIPLE REPORTS OF TREES DOWN THROUGHOUT THE CITY OF ROCKVILLE. 0625 PM TSTM WND DMG LANGLEY 38.94N 77.16W 06/25/2020 FAIRFAX VA DEPT OF HIGHWAYS TREE AND BRANCHES DOWN IN THE AREA OF VA-123 DOLLEY MADISON BOULEVARD NEAR BALLANTRAE LANE. 0630 PM TSTM WND DMG 3 N ROCKVILLE 39.13N 77.14W 06/25/2020 MONTGOMERY MD TRAINED SPOTTER TREE DOWN ON BEECH DRIVE NEAR NEEDWOOD DRIVE 0636 PM TSTM WND DMG 1 E BETHESDA 38.99N 77.11W 06/25/2020 MONTGOMERY MD FIRE DEPT/RESCUE MULTIPLE TREES UPROOTED, WITH ROADS CLOSED AND DAMAGE TO SEVERAL HOMES IN THE BETHESDA BATTERY PARK NEIGHBORHOOD. 0638 PM HAIL BETHESDA 38.99N 77.12W 06/25/2020 E1.00 INCH MONTGOMERY MD PUBLIC QUARTER SIZE HAIL IN BETHESDA. 0639 PM TSTM WND DMG 1 N SOMERSET 38.97N 77.09W 06/25/2020 MONTGOMERY MD EMERGENCY MNGR TREE BRANCHES AND WIRES DOWN IN 4920 BLOCK OF CHEVY CHASE BLVD. 0644 PM TSTM WND DMG 2 ESE SOMERSET 38.96N 77.07W 06/25/2020 DISTRICT OF COLUMB DC PUBLIC TREES DOWN ON 36TH STREET NW BETWEEN GARRISON AND NEVADA AVE NW, FESSENDEN STREET NW BETWEEN 36TH AND 34TH STREET, AND LINNEAN TERAACE BETWEEN 33RD STREET AND LINNEAN AVE NW. 0645 PM TSTM WND DMG 1 ESE SOMERSET 38.96N 77.07W 06/25/2020 DISTRICT OF COLUMB DC TRAINED SPOTTER TREE DOWN ON HOME IN 3700 BLOCK OF CHESAPEAKE STREET NW. 0646 PM TSTM WND DMG NASONS 38.26N 78.03W 06/25/2020 ORANGE VA 911 CALL CENTER MULTIPLE REPORTS OF TREES DOWN BETWEEN ORANGE AND UNIONVILLE 0655 PM TSTM WND GST ORANGE COUNTY ARPT 38.25N 78.05W 06/25/2020 M59 MPH ORANGE VA AWOS 0656 PM TSTM WND DMG 2 NNW LAHORE 38.22N 77.98W 06/25/2020 ORANGE VA 911 CALL CENTER MULTIPLE TREES REPORTED DOWN NEAR KENDALL AND LAHORE ROADS 0705 PM TSTM WND DMG 2 W THORNHILL 38.16N 78.00W 06/25/2020 ORANGE VA 911 CALL CENTER MULTIPLE TREES DOWN NEAR MONROVIA AND MARQUIS ROADS 0706 PM MARINE TSTM WIND 7 SSE SAINT GEORGE ISLA 38.01N 76.45W 06/25/2020 M39 MPH ANZ537 MD BUOY 0717 PM TSTM WND DMG 2 E BELMONT 38.16N 77.82W 06/25/2020 SPOTSYLVANIA VA 911 CALL CENTER MULTIPLE TREES REPORTED DOWN IN THE WESTERN PART OF SPOTSYLVANIA 0734 PM TSTM WND DMG WARRENTON 38.72N 77.80W 06/25/2020 FAUQUIER VA 911 CALL CENTER MANY REPORTS OF TREES DOWN IN AND NEAR WARRENTON 0734 PM TSTM WND DMG 1 NNE UPPER MARLBORO 38.83N 76.75W 06/25/2020 PRINCE GEORGES MD 911 CALL CENTER TREE DOWN ON LARGO ROAD NEAR UPPER MARLBORO. 0738 PM TSTM WND DMG 2 W PARTLOW 38.04N 77.68W 06/25/2020 SPOTSYLVANIA VA PUBLIC MULTIPLE TREES DOWNED/SNAPPED IN THE 10000 BLOCK OF HUMMINGBIRD DR. NEAR PARTLOW, VA. 0743 PM TSTM WND DMG PARTLOW 38.04N 77.64W 06/25/2020 SPOTSYLVANIA VA 911 CALL CENTER MULTIPLE REPORTS OF TREES DOWNED IN THE PARTLOW AREA 0743 PM HAIL 2 W PARTLOW 38.04N 77.68W 06/25/2020 M1.50 INCH SPOTSYLVANIA VA PUBLIC 0832 PM TSTM WND DMG 3 SW TRIANGLE 38.52N 77.36W 06/25/2020 PRINCE WILLIAM VA 911 CALL CENTER LARGE TREE DOWN BLOCKING ALL LANES OF US 1 NEAR RUSSELL ROAD 0839 PM TSTM WND GST QUANTICO MARINE CORP 38.51N 77.30W 06/25/2020 M63 MPH PRINCE WILLIAM VA ASOS 0859 PM HAIL 2 E IRONSIDES 38.49N 77.13W 06/25/2020 M1.00 INCH CHARLES MD TRAINED SPOTTER Link to comment Share on other sites More sharing options...
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