December Discobs 2025

[wxmeddler]

#wedge

[wxdude64]

3 hours ago, wxdude64 said:

Hit 50.6 degrees briefly about noon here, first time above 50 since 11/27. Was a high haze/cloud cover, now lowered clouds, looks like rain soon? although with an 21 degree DP it'll be virga. Temp down to 47.8 degrees at 1:30 pm.

That 50.6 looks like the high, been a S L O W decent since then, currently 45.3/31.8 at 5:10 pm. Took care of all the snow OTG except for made piles. 

[pazzo83]

6 hours ago, Terpeast said:

Fell short of the forecasted high of 51, only made it to 48. 

49.5F here.  A WILD inversion going on right now around here - it's 45F here, about 4 blocks away and downhill, it's 33F lol.

[pazzo83]

this is insane lol

 

[WEATHER53]

My shaded ground is frozen solid and full sun is hazardous as too 1/4” is melted clay much but still frozen right underneath.  Fast drop down to 35 now 

[pazzo83]

46F here and rising (most of my snow has been obliterated) while DCA is at 35 and dropping lol.  Don't think I've seen that type of spread before absent it raining in one location and not the other.

[T. August]

6 minutes ago, pazzo83 said:

46F here and rising (most of my snow has been obliterated) while DCA is at 35 and dropping lol.  Don't think I've seen that type of spread before absent it raining in one location and not the other.

Legit wild - I went from 32° to 38° in like 10 minutes an hour ago, back down to 35° now

[pazzo83]

21 minutes ago, T. August said:

Legit wild - I went from 32° to 38° in like 10 minutes an hour ago, back down to 35° now

it's 47F at my house on 43rd St.  A station along the same cross street but at 47th St (and probably about 80-100' lower) is at 33F.  The hill we are on basically slopes down to the Potomac River, so I assume that is something.  Also the wind is very slight out of the east - about 1.5-2 blocks east is a much more commercial area along Wisconsin Ave.

[Weather Will]

WB 12Z 3K NAM....rain and wind incoming...

[pazzo83]

low of 28F at DCA and 36F up here at around 380' in upper NW.  Not typical lol.

[dailylurker]

4 minutes ago, pazzo83 said:

low of 28F at DCA and 36F up here at around 380' in upper NW.  Not typical lol.

I was hiking in the Catoctins on Tuesday. I noticed a lot of this. I was at Cunningham Falls. Down at the Falls between two ridges was like 28 degrees with powdery snow. I hiked up to about 1600 feet from 1200 feet. Once I hit about 1500 feet suddenly it's warm, probably 36, and theres water funning down the rocks below the snow. As im hiking back down suddenly, within 10 feet the temp went back below freezing and it was silent. You could literally look up towards the top and see dropping from trees. The mountains are so cool when it comes to this stuff. I love it. Super fascinating. 

[yoda]

Oh yes... just cant wait for more wind tomorrow!

[WxUSAF]

Today will presumably break the streak of 21 days/3 weeks of below normal temps. That’s an impressive run. When was the last time we had a streak that long? I thought Feb-Mar 2015, but that didn’t have that many consecutive BN days. Nov-Dec 1989 had 32 days!

[yoda]

URGENT - WEATHER MESSAGE
National Weather Service Baltimore MD/Washington DC
1153 AM EST Thu Dec 18 2025

MDZ501-510-WVZ501-503-505-190100-
/O.UPG.KLWX.HW.A.0003.251219T1100Z-251220T0300Z/
/O.NEW.KLWX.HW.W.0004.251219T1100Z-251220T0300Z/
Extreme Western Allegany-Eastern Garrett-Western Grant-Western
Mineral-Western Pendleton-
1153 AM EST Thu Dec 18 2025

...HIGH WIND WARNING IN EFFECT FROM 6 AM TO 10 PM EST FRIDAY...

* WHAT...West winds 25 to 40 mph with gusts up to 65 mph expected.

* WHERE...In Maryland, Eastern Garrett and Extreme Western Allegany
  Counties. In West Virginia, Western Grant, Western Mineral, and
  Western Pendleton Counties.

* WHEN...From 6 AM to 10 PM EST Friday.

* IMPACTS...Damaging winds will blow down trees and power lines.
  Widespread power outages are expected. Travel will be difficult,
  especially for high profile vehicles.

* ADDITIONAL DETAILS...The strongest winds are expected above 3000
  feet around or just before daybreak Friday. A second and more
  widespread surge will follow from about midday through late
  afternoon, with a third surge of wind expected Friday evening.

 

[yoda]

URGENT - WEATHER MESSAGE
National Weather Service Baltimore MD/Washington DC
1153 AM EST Thu Dec 18 2025

MDZ502-509-VAZ503-504-507-508-WVZ502-504-506-190100-
/O.UPG.KLWX.WI.Y.0024.251219T1100Z-251220T0000Z/
/O.NEW.KLWX.HW.W.0004.251219T1100Z-251220T0000Z/
Central and Eastern Allegany-Western Garrett-Western Highland-
Eastern Highland-Northern Virginia Blue Ridge-Central Virginia
Blue Ridge-Eastern Grant-Eastern Mineral-Eastern Pendleton-
1153 AM EST Thu Dec 18 2025

...HIGH WIND WARNING IN EFFECT FROM 6 AM TO 7 PM EST FRIDAY...

* WHAT...West winds 25 to 35 mph with gusts up to 60 mph expected.

* WHERE...In Maryland, Central and Eastern Allegany and Western
  Garrett Counties. In Virginia, Central Virginia Blue Ridge and
  Northern Virginia Blue Ridge, and Eastern Highland and Western
  Highland Counties. In West Virginia, Eastern Grant, Eastern
  Mineral, and Eastern Pendleton Counties.

* WHEN...From 6 AM to 7 PM EST Friday.

* IMPACTS...Damaging winds will blow down trees and power lines.
  Widespread power outages are expected. Travel will be difficult,
  especially for high profile vehicles.

* ADDITIONAL DETAILS...The strongest winds are expected above 3000
  feet around or just before daybreak Friday. A second and more
  widespread surge will follow from about midday through late
  afternoon, with a third surge of wind possible Friday evening.

[yoda]

URGENT - WEATHER MESSAGE
National Weather Service Baltimore MD/Washington DC
1153 AM EST Thu Dec 18 2025

MDZ003>006-008-011-505>508-VAZ028-WVZ050>053-055-190100-
/O.CON.KLWX.WI.Y.0024.251219T1700Z-251220T0000Z/
Washington-Frederick MD-Carroll-Northern Baltimore-Cecil-Southern
Baltimore-Northwest Howard-Central and Southeast Howard-Northwest
Harford-Southeast Harford-Frederick VA-Hampshire-Morgan-Berkeley-
Jefferson-Hardy-
1153 AM EST Thu Dec 18 2025

...WIND ADVISORY REMAINS IN EFFECT FROM NOON TO 7 PM EST FRIDAY...

* WHAT...West winds 20 to 30 mph with gusts of 45 to 55 mph expected.

* WHERE...Portions of central, north-central, northeast, and
  northern Maryland, northwest Virginia, and eastern West Virginia.

* WHEN...From noon to 7 PM EST Friday.

* IMPACTS...Gusty winds will blow around unsecured objects. Tree
  limbs could be blown down and a few power outages may result.

* ADDITIONAL DETAILS...Gusty winds may persist for several more
  hours Friday evening. A few gusts to near 60 mph are possible,
  especially along and just east of higher terrain.

[yoda]

URGENT - WEATHER MESSAGE
National Weather Service Baltimore MD/Washington DC
1153 AM EST Thu Dec 18 2025

DCZ001-MDZ013-014-503-504-VAZ026-027-029>031-036>040-053-054-501-505-
506-526-190100-
/O.EXA.KLWX.WI.Y.0024.251219T1700Z-251220T0000Z/
District of Columbia-Prince Georges-Anne Arundel-Northwest
Montgomery-Central and Southeast Montgomery-Rockingham-Shenandoah-
Page-Warren-Clarke-Nelson-Albemarle-Greene-Madison-Rappahannock-
Fairfax-Arlington/Falls Church/Alexandria-Northern Fauquier-
Western Loudoun-Eastern Loudoun-Northwest Prince William-
1153 AM EST Thu Dec 18 2025

...WIND ADVISORY IN EFFECT FROM NOON TO 7 PM EST FRIDAY...

* WHAT...West winds 20 to 30 mph with gusts of 45 to 55 mph expected.

* WHERE...Washington DC, and portions of central Maryland, and
  central, northern, northwest, and western Virginia.

* WHEN...From noon to 7 PM EST Friday.

* IMPACTS...Gusty winds will blow around unsecured objects. Tree
  limbs could be blown down and a few power outages may result.

* ADDITIONAL DETAILS...Gusty winds may persist for several more
  hours Friday evening.

 

[WEATHER53]

15 minutes ago, WxUSAF said:

Today will presumably break the streak of 21 days/3 weeks of below normal temps. That’s an impressive run. When was the last time we had a streak that long? I thought Feb-Mar 2015, but that didn’t have that many consecutive BN days. Nov-Dec 1989 had 32 days!

1977 did it about 30 or so 

[MN Transplant]

1 hour ago, pazzo83 said:

low of 28F at DCA and 36F up here at around 380' in upper NW.  Not typical lol.

You weren't kidding, what an inversion last night.  IAD at 23 and my low was 35.  I'm not sure when I've ever been up on DCA by 7 degrees for a low.

On the MD Mesonet, the warmest site was Frostburg at nearly 2300'.  

[MN Transplant]

30 minutes ago, WxUSAF said:

Today will presumably break the streak of 21 days/3 weeks of below normal temps. That’s an impressive run. When was the last time we had a streak that long? I thought Feb-Mar 2015, but that didn’t have that many consecutive BN days. Nov-Dec 1989 had 32 days!

The airports in the -8 to -9 range more than halfway through the month.  Seriously legit.

[wxdude64]

43.0/32.2 at 1 pm here. Clouds moved in by 9:30 am and locked temps in, NWS has already cut highs down 4 degrees to 48 from the 7 am forecast and that might still be too high. ESE winds at 6 mph. 

[87storms]

39 minutes ago, yoda said:

Oh yes... just cant wait for more wind tomorrow!

My neighbors are gonna love that I left my balcony furniture out and I won’t be back for another 10 days.

[clueless]

Weirdly felt like barbecue weather. Clouding up here now  by IAD. 51. 

[WEATHER53]

54 for a high.  Warmest  since 11/28

[wxdude64]

41.1/37.5 and raining here in the last hour or so.