snowman21

9 minutes ago, TheClimateChanger said:

That's how I remember it and found an old document from the EPA that has the same value.  With that said, Daryl Herzmann and IEM is an extremely reputable source, which would suggest it may have been changed at some time for consistency with wind measurements. Not sure. The WMO standard is for 5-minute averaging, but not all jurisdictions use that. The UKMET Office uses only 1-minute averaging for its platinum resistance thermometers, which I only recently learned from some complaining denialists from across the pond. These guys are always the biggest snowflakes. Oh, there's too much red on the weather map. The temperature is illegitimate because it's based on only a 1-minute average instead of a WMO 5-minute average! Etc., etc...

Wind changed in the 2000s when ASOS transitioned from cup and vane anemometers to the ultrasonic ones. That change only affected gusts as the averaging period was reduced from 5 to 3 seconds to match the WMO standard made possible by using a more responsive instrument.

1 minute ago, dendrite said:

I swear I remember it being 5 min unless it was changed.

I think it still is a 5-minute average sampled every 10 seconds. That 2-minute/5-second thing looks more like wind measurements.

13 minutes ago, Mr. Windcredible! said:

I think it's AWOS. But I've typically found it fairly reasonable and DP is showing DP as pretty well mixed (66F). 

It's an AWOS-3P. I've long suspected it only has passive shielding because of how quickly it races out ahead of everyone else in the morning. I know it has a little elevation being 400 ft. ASL, but so do other stations. For example this morning at 8 AM, SNC was the warmest temp in the state by 2° showing 86 when the next warmest DXR and BDL were only 84 and most everywhere else upper-70s/low-80s.

1 minute ago, dendrite said:

KSNC?

Yep.

3 minutes ago, Mr. Windcredible! said:

Even Chester CT managed to pull a 100...impressive. 

Suspect it's a non-aspirated or poorly shielded temp sensor.

13 minutes ago, Damage In Tolland said:

Who will hit 110!!!

90 at EWR already let's go!!!!

2 hours ago, Hoth said:

If there is a single government agency that generates great value for the tax payer's dollar, it is the NWS.

$4 per year per taxpayer for everything NOAA does is a ridiculous bargain. It's stupidly cheap. NOAA's budget is $6B out of the $5.9T total spend. We're talking 0.1% of the budget and 0.4% of the federal work force.

1 minute ago, weatherwiz said:

can make our own 

la la la la la la lock it up

7 minutes ago, wx2fish said:

Wind is relenetless. MHT G42KT

Gusting to 50 down here. 52 and 55 mph gusts at HPN and LGA as well. Guess the big gusts are too isolated to warrant a wind advisory.

28 minutes ago, Torch Tiger said:

At least we have cold.

And wind. Lots and lots of wind.

2 minutes ago, 8611Blizz said:

FWIW most TV mets are waiting on the Euro before saying it will likely snow on Saturday/Sunday.  It still carries a lot of weight.

Still have a couple days before TV mets have to commit to that. For now they can just say cloudy with a chance of snow and mention the possibility of something bigger.

3 minutes ago, Sey-Mour Snow said:

quarter to a half inch on the roads across all of the southern third of the state, Litchfield county as well..

Yeah that's about what we have. Decent sized fluffy flakes coming down with vis about a mile maybe a shade under.

12 minutes ago, Go Kart Mozart said:

Roads are a freaking mess down here.  Crews caught with their pants around their ankles.

TBF to the road crews, OKX still saying only a 20-40% chance of light snow this afternoon as of their 1202 update even though it's been snowing steadily across all of their CT zones for the last couple of hours.

Did anyone's barometer reach 31 inches? Looking to see if any stations got to 31, some stations in NJ got to 30.98. Mine was just shy - never seen it that high before! Looks like MSS got to 31.01.

Look on the bright side: at least sunsets are getting later now. It's by seconds per day, but we're on our way to more mugs and jugs and margs and oyster shucking on the beach

2 minutes ago, wncsnow said:

Center looks to come right into the bay

 

The eastern eyewall is already east of the mouth of Tampa Bay longitude wise. As someone said above, this looks to make landfall between Sarasota and Venice in the next hour or so.

929 mb / 145 mph as of 8 AM EDT update

Looks like the new forecast takes it up to 185G225 at 6z tomorrow before the weakening trend begins.

925 mb / 160 mph on the 11:55 EDT update.

1 minute ago, NavarreDon said:

MPH?


.

Yes. Sorry, 155 mph max sustained.

933 mb / 155 mph as of 11 AM

Looks like as soon as it crossed 92°W around 13z it turned due east.

4 hours ago, weathafella said:

So here’s the question.   When I hear first frost I’m thinking frost otg or needing to be scraped off the car.  2M temps are often above freezing since ground temperatures can be colder.  So what do you mean by first frost?  First freeze for BOS averaged 11/7 in the dataset 1961-90.  I’m not sure it’s substantially different now actually.

First frost is the first low temperature at or below 36°F.

Just now, powderfreak said:

CON’s average is at 43F right now, BML at 37F.

There is no doubt the growing season has been increasing in the past decade or two.

Average first frost date at BDL was 9/30 from the 1971-2000 normals, 10/4 in the 1981-2010 normals, and now 10/6 with the 1991-2020 set, so a shift of 6 days later over the last 20 years. Probably similar pattern at every station.

1 minute ago, powderfreak said:

We should be getting into the 30s at night with some regularity at this point (average of 40F).  And that’s the average low of the current record set, which is already warm.

Enjoy that extra month of growing season if you're in northern New England I guess.