WEATHER53

So the way it is now we will know by early Saturday what Sunday will bring.

DCA does not match in with other stations, not even close. BWI IAD Camp Springs are consistent in their relationship with each other. DCA uniquely 5-15+ on many occasions. And Most Importantly, although it’s rare for the Potomac to be frozen it has happened and the discrepancy is still there.

No but you can reference that IAD was much closer to about 4/5 other stations who were all pretty close to each other in the area and DCA stands alone. I question other stations that are way closer to DCA than camp springs as to the location of their thermometer. Screwed into a balcony on a condo?

1pm 34F with 3-4.5” remaining in all areas but 6.5” still on full shade snowboard

Would you rent out your dazzling self????

97-98 too warm every time so we’ve done away with that this Jan and this year looking more like 86-87 right now

Sorry. DCA did make it to 21. I can umagine if a thermometer is out in front of the Williard with macadam , brick and buildings then radiation is hampered, if you live in a townhouse ior apartment and your thermometer is secured on or around the building then the same thing. Out in a field surrounded by open space and runway then same Doesnt apply. But, it’s FAA and not NWS.

Low of 14 IAD made it to 7 and DCA cracked freezing at 31.

My wind chill has been 23 or lower for 50 consecutive hours

10:30pm and 26F

5pm Currently 29.5 and falling fast after 31.8 for a high. It was OK at 2-3 clearing things but not as Ok right now

Nice pics peeps

1pm 30.7F. Wind chills mostly in upper teens to low 30’s 6.75” remaining on snowboard.

Temps stayed up with winds but it took until noon to get out of the single digit wind chills. 28 heresy 12 noon with overnight low of 18. Temps plummet tonight with light winds to 7 to 15

8pm 19.5 F nw wind 15 wind chill 6

High of 24.5 and currently 22.4.

On the 28th/29th we will know. The pattern now dictates to the models

3pm obs 24F which is high for the day. Max in sun radiance measured 29.8. Current wind chill 13F 7.5” on snowboard and 6-7.5 throughout yard

Our scenarios brings us back to DCA. Right now in the wind and snow cover DCA is1-2 degrees differing from its surrounds. So we conclude from this snd past experience that wind homogenizes the situation. But, on a snow covered clear and windless night DCA will be 10+ degrees milder. Where is the warmth coming from?. Not the ground, it’s got 6” snow on it, not the surrounds as they are snow covered also. Are buildings leeching out that much heat? Improbable. So gonna lay it all in the Potomac? Go ahead. I don’t. DCA is not a NWS facility but rather FAA. FAA wants conditions around the runway for the planes. Something about that is likely the culprit where wind has an effect on smoothing temps but radiational with low or no winds is artificially hampered..

Uber Impressive Chill Warning in Effect DCA is exact same temp at 11 am that it was at 6am-23F Uber!

11am 24.3 F with blowing snow pulses every 1-2 minutes, low of 18.2

Last time we had two 5”+ in a week was Jan 2016

Lots of great weather obs and discussion this week

Not saying this is he but when one can’t enjoy present moments, they can’t enjoy period.

Still in the snow shower band and have picked up 0.65 more since 5:30. storm total 5” and 9” on snowboard from both events