George BM

42/33 at IAD and I'm noticing it getting REALLY dark outside.

MBY Snow totals Winter 2024-2025 11/21/2024: T (A brief gusty rain/graupel shower around 6pm.) 11/22/2024: T (Flurries/light wet snow fell between 10am and 11:45am before mixing with and changing to light rain by 12:30pm.) 12/01/2024: T (Flurries off and on during the 4pm and 5pm hour.) 12/05/2024: T (Mixed light rain/snow between 4:30-5am w/ another brief light rain//snow mix between 7:30-7:40am.) 12/15/2024: T (A few ice pellets starting around 11:30am, then mixing with and changing to an off and on drizzle of rain/snow (intensified briefly into a light rain/snow mix during the 1pm hour). This lasted until after 3pm when precip again intensified into a light rain/snow mix before changing to all rain by 3:40pm.) 12/20/2024: T(A drizzle of rain/snow (8:30am-9am). A period of light snow between 10:30-11:15am, briefly approaching moderate intensity between 10:35am and 10:50am. Flurries continuing until midday. A few more flakes in the 6pm hour based on radar returns.) 12/24/2024: 0.1" (Light sleet started around 6:30am occasionally mixing with freezing rain through about 9am or so (more IP than ZR). Precip was very light but below freezing temps and a cold ground allowed for whitening of hard surfaces. Was originally going to call it a trace but with all of the 0.1" reports immediately surrounding me and taking into account sleet pellets piled at least two pellets high in depth... a tenth of an inch is the final measurement I went with making it the first measurable white stuff of the season for me.) 1/03/2025: 0.2" (Brief light rain/snow/graupel shower around 2pm. Heavy snow associated with a developing snow squall between 2:50pm-3:15pm with a brief brake in intensity to light snow between 3:00pm and 3:05pm. A second snow squall from 4:13pm to 4:25pm. Snow was light to moderate with the second squall until 4:22pm when rates briefly became as heavy as during first squall. Peak snowfall rates from both squalls in the 1-2"/hr range.) 1/06/2025: 6.2" (First flakes around or shortly after midnight on the 6th. Light snow becoming moderate at times by 2:00am lasting through 7am before becoming intermittent and tapering off to a few small flakes/crystals by 9:45am. A brief moderate snow shower around 1:40pm tapering off to a light snow then flurries by 2:20pm and holding near that intensity until the 4pm hour when it became a very light snowfall again. Light snow, approaching moderate intensity at times from the 5pm hour through 8:30pm, then very light snow/flurries until 10:15pm when snow tapered off.) 1/10-11/2025: 1.7" (Flurries/light snow starting in the 10pm hour intensifying to light/moderate snow 10:50-10:55pm. Snow became moderate to even mod/heavy at times with peak snowfall rates of 1"+/hr at times between 11pm and 12:45am. Snow then became occasional and light until the mid-overnight hours when it ended.) 1/14/2025: T (Flurries moved through between 9:15pm and 9:50pm.) 1/16/2025: 0.5" (Occasional flurries/light snow starting around 5:45pm. A burst of near moderate snow between 6:35pm and 6:43pm. Flurries/very light snow/graupel until 7:30pm or so followed by a burst of moderate/heavy snow until near 7:45pm. Flurries taper off by 8:15pm.) Snow totals IMBY as of January 17, 2025: 8.7"

Those yellows were fun here in Herndon. Large aggregates w/a moderately heavy snow burst. I'm now near 0.5" for the evening.

MBY Snow totals Winter 2024-2025 11/21/2024: T (A brief gusty rain/graupel shower around 6pm.) 11/22/2024: T (Flurries/light wet snow fell between 10am and 11:45am before mixing with and changing to light rain by 12:30pm.) 12/01/2024: T (Flurries off and on during the 4pm and 5pm hour.) 12/05/2024: T (Mixed light rain/snow between 4:30-5am w/ another brief light rain//snow mix between 7:30-7:40am.) 12/15/2024: T (A few ice pellets starting around 11:30am, then mixing with and changing to an off and on drizzle of rain/snow (intensified briefly into a light rain/snow mix during the 1pm hour). This lasted until after 3pm when precip again intensified into a light rain/snow mix before changing to all rain by 3:40pm.) 12/20/2024: T(A drizzle of rain/snow (8:30am-9am). A period of light snow between 10:30-11:15am, briefly approaching moderate intensity between 10:35am and 10:50am. Flurries continuing until midday. A few more flakes in the 6pm hour based on radar returns.) 12/24/2024: 0.1" (Light sleet started around 6:30am occasionally mixing with freezing rain through about 9am or so (more IP than ZR). Precip was very light but below freezing temps and a cold ground allowed for whitening of hard surfaces. Was originally going to call it a trace but with all of the 0.1" reports immediately surrounding me and taking into account sleet pellets piled at least two pellets high in depth... a tenth of an inch is the final measurement I went with making it the first measurable white stuff of the season for me.) 1/03/2025: 0.2" (Brief light rain/snow/graupel shower around 2pm. Heavy snow associated with a developing snow squall between 2:50pm-3:15pm with a brief brake in intensity to light snow between 3:00pm and 3:05pm. A second snow squall from 4:13pm to 4:25pm. Snow was light to moderate with the second squall until 4:22pm when rates briefly became as heavy as during first squall. Peak snowfall rates from both squalls in the 1-2"/hr range.) 1/06/2025: 6.2" (First flakes around or shortly after midnight on the 6th. Light snow becoming moderate at times by 2:00am lasting through 7am before becoming intermittent and tapering off to a few small flakes/crystals by 9:45am. A brief moderate snow shower around 1:40pm tapering off to a light snow then flurries by 2:20pm and holding near that intensity until the 4pm hour when it became a very light snowfall again. Light snow, approaching moderate intensity at times from the 5pm hour through 8:30pm, then very light snow/flurries until 10:15pm when snow tapered off.) 1/10-11/2025: 1.7" (Flurries/light snow starting in the 10pm hour intensifying to light/moderate snow 10:50-10:55pm. Snow became moderate to even mod/heavy at times with peak snowfall rates of 1"+/hr at times between 11pm and 12:45am. Snow then became occasional and light until the mid-overnight hours when it ended.) 1/14/2025: T (Flurries moved through between 9:15pm and 9:50pm.) Snow totals IMBY as of January 15, 2025: 8.2"

MBY Snow totals Winter 2024-2025 11/21/2024: T (A brief gusty rain/graupel shower around 6pm.) 11/22/2024: T (Flurries/light wet snow fell between 10am and 11:45am before mixing with and changing to light rain by 12:30pm.) 12/01/2024: T (Flurries off and on during the 4pm and 5pm hour.) 12/05/2024: T (Mixed light rain/snow between 4:30-5am w/ another brief light rain//snow mix between 7:30-7:40am.) 12/15/2024: T (A few ice pellets starting around 11:30am, then mixing with and changing to an off and on drizzle of rain/snow (intensified briefly into a light rain/snow mix during the 1pm hour). This lasted until after 3pm when precip again intensified into a light rain/snow mix before changing to all rain by 3:40pm.) 12/20/2024: T(A drizzle of rain/snow (8:30am-9am). A period of light snow between 10:30-11:15am, briefly approaching moderate intensity between 10:35am and 10:50am. Flurries continuing until midday. A few more flakes in the 6pm hour based on radar returns.) 12/24/2024: 0.1" (Light sleet started around 6:30am occasionally mixing with freezing rain through about 9am or so (more IP than ZR). Precip was very light but below freezing temps and a cold ground allowed for whitening of hard surfaces. Was originally going to call it a trace but with all of the 0.1" reports immediately surrounding me and taking into account sleet pellets piled at least two pellets high in depth... a tenth of an inch is the final measurement I went with making it the first measurable white stuff of the season for me.) 1/03/2025: 0.2" (Brief light rain/snow/graupel shower around 2pm. Heavy snow associated with a developing snow squall between 2:50pm-3:15pm with a brief brake in intensity to light snow between 3:00pm and 3:05pm. A second snow squall from 4:13pm to 4:25pm. Snow was light to moderate with the second squall until 4:22pm when rates briefly became as heavy as during first squall. Peak snowfall rates from both squalls in the 1-2"/hr range.) 1/06/2025: 6.2" (First flakes around or shortly after midnight on the 6th. Light snow becoming moderate at times by 2:00am lasting through 7am before becoming intermittent and tapering off to a few small flakes/crystals by 9:45am. A brief moderate snow shower around 1:40pm tapering off to a light snow then flurries by 2:20pm and holding near that intensity until the 4pm hour when it became a very light snowfall again. Light snow, approaching moderate intensity at times from the 5pm hour through 8:30pm, then very light snow/flurries until 10:15pm when snow tapered off.) 1/10-11/2025: 1.7" (Flurries/light snow starting in the 10pm hour intensifying to light/moderate snow 10:50-10:55pm. Snow became moderate to even mod/heavy at times with peak snowfall rates of 1"+/hr at times between 11pm and 12:45am. Snow then became occasional and light until the mid-overnight hours when it ended.) Snow totals IMBY as of January 11, 2025: 8.2"

Got down to 22F this morning at IAD post-storm.

MBY Snow totals Winter 2024-2025 11/21/2024: T (A brief gusty rain/graupel shower around 6pm.) 11/22/2024: T (Flurries/light wet snow fell between 10am and 11:45am before mixing with and changing to light rain by 12:30pm.) 12/01/2024: T (Flurries off and on during the 4pm and 5pm hour.) 12/05/2024: T (Mixed light rain/snow between 4:30-5am w/ another brief light rain//snow mix between 7:30-7:40am.) 12/15/2024: T (A few ice pellets starting around 11:30am, then mixing with and changing to an off and on drizzle of rain/snow (intensified briefly into a light rain/snow mix during the 1pm hour). This lasted until after 3pm when precip again intensified into a light rain/snow mix before changing to all rain by 3:40pm.) 12/20/2024: T(A drizzle of rain/snow (8:30am-9am). A period of light snow between 10:30-11:15am, briefly approaching moderate intensity between 10:35am and 10:50am. Flurries continuing until midday. A few more flakes in the 6pm hour based on radar returns.) 12/24/2024: 0.1" (Light sleet started around 6:30am occasionally mixing with freezing rain through about 9am or so (more IP than ZR). Precip was very light but below freezing temps and a cold ground allowed for whitening of hard surfaces. Was originally going to call it a trace but with all of the 0.1" reports immediately surrounding me and taking into account sleet pellets piled at least two pellets high in depth... a tenth of an inch is the final measurement I went with making it the first measurable white stuff of the season for me.) 1/03/2025: 0.2" (Brief light rain/snow/graupel shower around 2pm. Heavy snow associated with a developing snow squall between 2:50pm-3:15pm with a brief brake in intensity to light snow between 3:00pm and 3:05pm. A second snow squall from 4:13pm to 4:25pm. Snow was light to moderate with the second squall until 4:22pm when rates briefly became as heavy as during first squall. Peak snowfall rates from both squalls in the 1-2"/hr range.) 1/06/2025: 6.2" (First flakes around or shortly after midnight on the 6th. Light snow becoming moderate at times by 2:00am lasting through 7am before becoming intermittent and tapering off to a few small flakes/crystals by 9:45am. A brief moderate snow shower around 1:40pm tapering off to a light snow then flurries by 2:20pm and holding near that intensity until the 4pm hour when it became a very light snowfall again. Light snow, approaching moderate intensity at times from the 5pm hour through 8:30pm, then very light snow/flurries until 10:15pm when snow tapered off.) Snow totals IMBY as of January 6, 2025: 6.5"

MBY Snow totals Winter 2024-2025 11/21/2024: T (A brief gusty rain/graupel shower around 6pm.) 11/22/2024: T (Flurries/light wet snow fell between 10am and 11:45am before mixing with and changing to light rain by 12:30pm.) 12/01/2024: T (Flurries off and on during the 4pm and 5pm hour.) 12/05/2024: T (Mixed light rain/snow between 4:30-5am w/ another brief light rain//snow mix between 7:30-7:40am.) 12/15/2024: T (A few ice pellets starting around 11:30am, then mixing with and changing to an off and on drizzle of rain/snow (intensified briefly into a light rain/snow mix during the 1pm hour). This lasted until after 3pm when precip again intensified into a light rain/snow mix before changing to all rain by 3:40pm.) 12/20/2024: T(A drizzle of rain/snow (8:30am-9am). A period of light snow between 10:30-11:15am, briefly approaching moderate intensity between 10:35am and 10:50am. Flurries continuing until midday. A few more flakes in the 6pm hour based on radar returns.) 12/24/2024: 0.1" (Light sleet started around 6:30am occasionally mixing with freezing rain through about 9am or so (more IP than ZR). Precip was very light but below freezing temps and a cold ground allowed for whitening of hard surfaces. Was originally going to call it a trace but with all of the 0.1" reports immediately surrounding me and taking into account sleet pellets piled at least two pellets high in depth... a tenth of an inch is the final measurement I went with making it the first measurable white stuff of the season for me.) 1/03/2025: 0.2" (Brief light rain/snow/graupel shower around 2pm. Heavy snow associated with a developing snow squall between 2:50pm-3:15pm with a brief brief in intensity to light snow between 3:00pm and 3:05pm. A second snow squall from 4:13pm to 4:25pm. Snow was light to moderate with the second squall until 4:22pm when rates briefly became as heavy as during first squall. Peak snowfall rates from both squalls in the 1-2"/hr range.) Snow totals IMBY as of January 4, 2025: 0.3"

Lol! Second time the Monument gets struck this week.

Wondering if those 50+ DBZ reflectivities near Fairfax are all snow or some kind of mix.

Rain/snow mix here in Herndon.

Some CAMs have >100 J/kg of CAPE with some positive CAPE reaching above 600mb where the temp drops to near -30C. So I wouldn't be surprised if there were a few lightning events with the most intense snow showers/squalls.

Gnarly squall on the FV3.

I don't hate the steep low/mid-level lapse rates and non-zero CAPE for Friday afternoon on the 12z 3kmNAM and FV3. Good conditions for some locally intense snow showers/squalls.

A chilly and windy day to start the year following rain and thunderstorms the prior day.

Happy New Year of 2025! Let it be a year full of rewards and taking great care of yourselves. And may we have many exciting weather events to weenie over!

Happy New Year!

Yeah. Just had a fairly hefty bolt not too far away a few minutes ago. (Herndon, VA)

Some CAMs are actually somewhat bullish on some convective showers and, perhaps, a few thunderstorms tomorrow late afternoon/evening with the best thunderstorm chance east of I-95. These look like they may be slightly elevated but soundings look relatively favorable for some hail especially the further east you are. Low-level shear looks decent enough particularly in far eastern areas (near and east of the bay) where a surface low may form. So if the depth of the near-surface stable layer is shallow enough or if it's not very stout, there could be some brief low-level spin with a few of the storms that way.

IAD high of 67F.

Unrelated- sorry for taking 5,000 years to respond ... the last time DC was under an ENH risk or greater was indeed not this year. It was August 7, 2023.

MBY Snow totals Winter 2024-2025 11/21/2024: T (A brief gusty rain/graupel shower around 6pm.) 11/22/2024: T (Flurries/light wet snow fell between 10am and 11:45am before mixing with and changing to light rain by 12:30pm.) 12/01/2024: T (Flurries off and on during the 4pm and 5pm hour.) 12/05/2024: T (Mixed light rain/snow between 4:30-5am w/ another brief light rain//snow mix between 7:30-7:40am.) 12/15/2024: T (A few ice pellets starting around 11:30am, then mixing with and changing to an off and on drizzle of rain/snow (intensified briefly into a light rain/snow mix during the 1pm hour). This lasted until after 3pm when precip again intensified into a light rain/snow mix before changing to all rain by 3:40pm.) 12/20/2024: T(A drizzle of rain/snow (8:30am-9am). A period of light snow between 10:30-11:15am, briefly approaching moderate intensity between 10:35am and 10:50am. Flurries continuing until midday. A few more flakes in the 6pm hour based on radar returns.) 12/24/2024: 0.1" (Light sleet started around 6:30am occasionally mixing with freezing rain through about 9am or so (more IP than ZR). Precip was very light but below freezing temps and a cold ground allowed for whitening of hard surfaces. Was originally going to call it a trace but with all of the 0.1" reports immediately surrounding me and taking into account sleet pellets piled at least two pellets high in depth... a tenth of an inch is the final measurement I went with making it the first measurable white stuff of the season for me.) Snow totals IMBY as of December 27, 2024: 0.1"

I hope all of you peeps had a VERY MERRY CHRISTMAS. …And a very Happy Hanukkah as well to those who celebrate!

Hard surfaces whitening with an orange/red southeastern sky.

Light IP/ZR here more IP than ZR.