George BM

With some seeing measurable snow/sleet I'll start this up. Happy measuring. 11/30/2025: T (A mix of rain/sleet from the 4am hour through about 9am. Intensity got up to light/moderate intensity at times. Temps: low/mid 30s 12/02/2025: T (Probably had a brief period of sleet w/ rain sometime between 4:30am and 5am when precip started before quickly changing to a cold rain that became moderate at times during the morning.)

BWI: 50.8" DCA: 33.7" IAD: 53.7" RIC: 29.4" Tiebreaker (SBY): 27.9"

Thursday, December 4, 2025 3:58PM EST Extreme Cold, High Wind and Blizzard warnings are in place across the region in anticipation of the historic storm about to commence over the region. This storm will have many similarities to the Great Appalachians Storm of late November 1950 except the whole setup will be shifted east by a few hundred miles. … Nestor will continue to be absorbed into the large surface low deepening off the Carolinas over the next 12 hours or so as a result of the deep and record cold trough and embedded shortwave approaching the coast. Temps have already fallen into the teens northwest of I-95 and will fall through the night into the low to mid-single digits areawide on strong NNW winds gusting to around 40 to 50 mph. This will bring windchills down into the -20 to -30F range in the greater DC metro area, hence the Extreme Cold Warning in place. As the night wears on the large upper-level trough will start to cutoff as the shortwave rounding the base of said trough takes on a strongly negative tilt. This will result in the surface low deepening explosively as it begins to track to the northwest back towards the Mid-Atlantic coastline. This will throw snow back into our region from east to west through the predawn hours reaching the Blue Ridge by sunrise. Friday, December 5th and Saturday, December 6th will be two days that are remembered for the long time in these parts. As the surface low continues to deepen bands of very heavy snow will be thrown west across the region as NNW winds gust over 60 mph areawide with some gusts pushing 75 mph in the mountains and near the coast of the Chesapeake Bay and the Potomac River. Temperatures will remain in the 0 to 5F range throughout the day as well, meaning windchills will be as low as -25 to -30F. Snowfall rates of 3 to 4 inches per hour will be common leading to whiteout conditions. The snow, cold and wind combo will make even being outside very dangerous if not adequately bundled up for the elements. The heaviest snow and highest winds will last through the late evening and into the early overnight hours. But the storm will be long from done. The surface low will stall and spin over or just off of the Delmarva allowing blizzard conditions with heavy snow and strong winds to continue throughout the day on Saturday. Temps on Saturday may actually warm into the double-digits… generally 10-15F raising windchills into the -5 to -15F range. It won’t be until late Saturday night into Sunday morning when the surface low rotates to the east and out to sea allowing the snow to taper off from west to east throughout the night. Snowfall totals: Snowfall totals will be truly historic and life-altering with 45-65” being commonplace across the Greater Metro area. However, owing to the high winds and the low water content of the snow, snow drifts may be as high as 35 feet burying homes and businesses underneath the snow. Winds: Winds gusts will peak in the 60 to 70 mph range (locally 75 mph) from Friday afternoon through about midnight (12am) Saturday but will continue gusting over 50 mph through Saturday evening. Temperatures: Temperatures will fall into the lower single digits late tonight and hold steady within a few degrees of this through predawn Saturday before rising into the lower teens by Saturday afternoon.

Is the next skyrecho hitting earth yet?

Dulles got down to 33F. First morning that I'm noticing frost on the cars.

Occasional lightning/thunder here in Herndon.

IAD got down to 34F.

I remember this day very well. One of a few times during my grade-school years when there was a thunderstorm during school hours (5th grade). The good stuff was to my east but there was heavy rain and occasional lightning and it was really dark blue outside.

Schumacher actually has much of the area in 15% for Sunday. https://schumacher.atmos.colostate.edu/hilla/csu_mlp/csu_severe.php?date=20251016&version=2021&day=4&product=severe_ml_day4_gefso&day_str=1020&init=00

@bigtenfan@Scott747 Title update?

Friday, October 31, 2025 8:31AM EDT Winter Storm Warning in effect from 3PM EDT this afternoon until midnight Saturday, November 1, 2025. Moderate to heavy rain continues to move through the region this morning with a few elevated thunderstorms towards central VA and southern MD. This activity will taper off to a few showers and drizzle by lunchtime. Temps all the while remaining unseasonably cold with upper 30s/ lower 40s commonplace. By the early afternoon our attention turns to the powerful and sharp shortwave trough approaching from the WSW providing ample lift for showers and elevated thunderstorms to move into and develop over the I-81 corridor. Mid-level temps will also cool as the shortwave moves in resulting in increased elevated instability with MUCAPE in excess of 250 J/kg possible. As we get into the mid-afternoon hours numerous bands of showers and elevated thunderstorms will overspread the region. The strongest storms could have small to medium sized hail (up to penny sized). As heights crash as the shortwave moves in strong dynamic cooling will take place resulting in rain changing over to a very heavy wet snow from west to east (most likely around 2pm along the 1-81 corridor. 3-5pm in the urban corridor and after 5pm east of I-95.) Snowfall rates will be very heavy in excess of 3-4 inches per hour (possibly 5”+/hr in the heaviest convective bands) w/ occasional lightning from convective elements continuing through the evening. Winds will gust upwards of 30 to 40 mph as the surface low rapidly deepens over the Delmarva peninsula resulting in near-zero visibility at times with the snow. Although this will be a quick hitting storm with snowfall tapering off everywhere before midnight the extreme snowfall rates will result in snowfall totals of 14 to 20 inches being commonplace throughout the majority of the forecast area with localized amounts approaching 24 inches possible. Snow drifts could exceed 4 feet. Furthermore, with the wet paste-like consistency of the snow expected, widespread tree damage and power outages are probable. Once snow tapers off skies will clear overnight with temperatures settling in the mid 20s to lower 30s. Temperatures will remain below average with 40s for highs and 20s for lows through the weekend and into next week. This is going to be a very high impact event that the area will feel the effects from for weeks to come. Please make sure you have a way to get electricity and stay up to date with the changing weather conditions.

Shorter days. Cooler nights. Increasing festiveness. Lowering humidity. Decreasing mosquitos.

Virginia Beach.

Joaquin of 2015 is the one for me.

1.13" for the event total here. Side note: The evening twenty-two years ago today was a gorgeous 10/10.

Happy Climatological Peak of Atlantic Hurricane Season Day!

IAD bottoming out at 47F.

0.03" here yesterday through early this morning.

Tuesday, September 16, 2025 Tornado Emergency remains in effect for northern Baltimore City and central Baltimore county until 5:45PM EDT. At 5:32PM a confirmed large and destructive tornado was located near Pikesville, MD moving northeast at 50 mph. Locations impacted include Pikesville, Stevenson, Brooklandville, Mays Chapel, Cockeysville, Hunt Valley, Ashland, Timonium, Phoenix, Jacksonville. This tornado has a history of producing catastrophic damage across parts of Montgomery and Howard counties in Maryland. This is a life-threatening situation. Everyone in the warned area must be underground in a basement until the storm passes.

Crisp unsummer-like weather continues. Happy Meteorological/Climatological Fall.

Looking forward to more cool, crisp mornings this week.

Not a flurry though.

1:51pm on an August 23rd. Thread bump time. Fourteen years ago at this moment was a fun time!

Flood Watch National Weather Service Baltimore MD/Washington DC 1157 AM EDT Wed Aug 13 2025 DCZ001-MDZ006-008-011-013-014-504-506>508-VAZ053-054-140000- /O.NEW.KLWX.FA.A.0032.250813T1800Z-250814T0100Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ District of Columbia-Northern Baltimore-Cecil-Southern Baltimore- Prince Georges-Anne Arundel-Central and Southeast Montgomery- Central and Southeast Howard-Northwest Harford-Southeast Harford- Fairfax-Arlington/Falls Church/Alexandria- 1157 AM EDT Wed Aug 13 2025 ...FLOOD WATCH IN EFFECT UNTIL 9 PM EDT THIS EVENING... * WHAT...Flash flooding caused by excessive rainfall is possible. * WHERE...Portions of DC, including the following , District of Columbia, Maryland, including the following areas, Anne Arundel, Cecil, Central and Southeast Howard, Central and Southeast Montgomery, Northern Baltimore, Northwest Harford, Prince Georges, Southeast Harford and Southern Baltimore, and northern Virginia, including the following areas, Arlington/Falls Church/Alexandria and Fairfax. * WHEN...Until 9 PM EDT this evening. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Flooding may occur in poor drainage and urban areas. * ADDITIONAL DETAILS... - Thunderstorms are likely this afternoon into this evening with heavy rainfall within a short period of time. Localized rainfall amounts around 1 to 2 inches within an hour are likely. Multiple rounds of storms are possible with total rainfall amounts around 2 to 4 inches. This may cause creeks and small streams to rise out of their banks with flash flooding possible. - Please visit www.weather.gov/safety/flood for flood safety and preparedness information PRECAUTIONARY/PREPAREDNESS ACTIONS... You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$ AVS

MJJ 2025 ONI (rounded to nearest tenth): -0.1C MJJ 2025 RONI: -0.40C