wxmeddler

The front is fun. 10 deg drop in 8 min and a gust to 42 at Thurmont currently.

Yes, the hodographs, as taken by themselves, are prime tornadic hodographs. However, the reason why they are like that is due to the surface inversion. If the surface inversion was mixed out then the 0-1 length would be shorter, but still capable of causing trouble.

LWX is confident too much sfc stability, but I’m not so sure we don’t get some sort of dynamics that could break through. Won’t be widespread.

#wedge

I have a sneaking suspicion looking at satellite that places in N Baltimore and higher elevations of Harford co are plummeting right now.

Snowing at about 6kft above DC/Baltimore:

Out at Bacon Ridge, love that area. And yes, the snow line can be very pronounced. I've seen Trace to 2" within 30 feet vertical.

A week before solstice and cloud cover is keeping it cool. We're barely reaching SW/LW equilibrium.

Disappointed that we didn’t de-couple and go calm even in some of the normal inversion spots. Easily could have been 10f colder last night. Single digits even for places in NE MD.

In the places that got at least 2" of snow cover? Easily.

Sniffing the god*amn ozone tonight. My goodness.

Back from a weekend in NYC, and I've missed a 50+ page thread! Darn! Gonna be a cold one tonight! Hopefully the wind dies.

The snow depth sensor uses an echo-location ping (think bats/dolphins) to determine the depth. We've noticed that sometimes a big "spike" happens because the ping bounced off a snowflake(s) just below the sensor. This makes the sensor think that the snow top is right beneath the sensor. We have a few ideas of how we might remedy this, but we're pretty sure we're not going to be able to solve it completely. Humans with eyeballs are much more reliable!

If BWI for the High stays at 32, it will be 2nd coldest high for 12/09 on record. Edit: Also 2nd Coldest Min Temperature with 14 this AM

Apparently there is no fun allowed in Harrisonburg.