dendrite

Good blog post explaining the 5min data vs hourly metar discrepancies. https://blog.synopticlabs.org/blog/2016/08/29/hf-metars.html Anyway...we’re about maxed out up here. Time for fall.

Did Bos hit 100 yesterday? No. The only hundo is BDL today.

The 5min archived obs have the higher precision with the T groups...so idk. I have to find the data from the server MW is getting them from and see the raw output. ftp://ftp.ncdc.noaa.gov/pub/data/asos-fivemin/6401-2019/64010KBDL201906.dat

I think 850s have been slowly ticking down a bit.

I don’t see them here. https://www.wrh.noaa.gov/mesowest/timeseries.php?sid=KBDL&wfo=fgz&num=72&hfmetars=1

I'll have to dig more. ISU must have them. I just figured MW would have the full precision if it was available. It's be nice if we could get them...I mean it's 2019...not 1999. We're not on dialup with that big of bandwidth concerns anymore.

lol...BDL is legit 100F. The 6hr max has 100F and 38C is either 100 or 101 (37.8C or 38.3C). So there's no guessing game on whether or not they hit 100F when 38C/100.4F rolls in.

Anyway...the 18z 6hr max and mins are in for 18z. BAF shows a high of 98.6F (37C) on Mesowest. That technically rounds to 99F, but like I said, it could be 98F or 99F. The 6hr max shows "10367" which is +36.7C...so that's a high of 98F so far.

It's all from NOAA's servers. It's kinda weird because our ASOS stations will report obs in whole degrees F. But we stepped away from the surface aviation obs in 1996 to go with the international METAR coding. So those whole F temps get converted to C. They had to add a T group for temp and dew in the remarks section in order to report temp and dew in tenths celcius (so that we can convert back those readings in whole degrees F). It's a lot of bouncing back and forth. Utah/Mesowest is just converting what they get from NOAA. So the METARs and SPECI (special) obs have the T grouping in tenths, but the relatively new supplementary obs do not have the T group and it just comes in as whole degrees C in the body of the ob. I guess pilots don't care if it's 96F or 97F. 36C is good enough for them.

Too bad Kevin jumped off the ship this morning while some stayed the course. We let him back on, but we never forget.

Wow. Nice.

The 5 min obs (non METAR or SPECIs) come in via whole degrees celcius. That's what Mesowest gets in. So for BOS that's 36C. For BDL and BAF that was 37C. 36C converted to F is 96.8F. But that just means it is either 96F (35.6C) or 97F (36.1C). It's just a communications limitation from NOAA. I wish they'd just send every 5 min ob in tenths celcius and not whole celcius. Then you'd get the accurate reading in whole degrees F.

BAF 98 or 99 BDL 98 or 99 BOS 96 or 97

ot but why? They pulled this 6 day stretch last year for record high mins. 7/12 74 in 2002 67 in 2018 66 in 2014+ 7/13 70 in 2018 70 in 2014 68 in 2012 7/14 69 in 2018 69 in 2005 68 in 2014 7/15 72 in 2018 71 in 2014 71 in 2005 7/16 69 in 2018 69 in 2010 68 in 2017+ 7/17 69 in 2014 69 in 2005 68 in 2018

The temp was either 96 or 97 at the time given the 36C ob. 97° at 1pm. They have a shot.

Congrats James. CQX 96/97.

BDL 96/97

BAF 83 to 93 in 1hr. I doubt anyone hits 100F...gonna have to put up a 4F spot I think in the next hour in the torch valleys.

BDL 85 to 93 in 1hr.

Up to 88F here. 2F ahead of yesterday at this time.

Meanwhile...BOS is up to 91F. Same temp as this time yesterday except the dew is like 3F lower. Gusting out of the WSW at 22mph.

BDL 98 BED 98 OWD 98 BOS 97 TAN 97 MHT 97 FIT 97 I mean most MOS guidance had 97-100F. How is that a bust? I'm going to assume NWS zone forecasts were calling for upper 90s in the lower els? The decoupling example is usually when the forecast is -10F and calm and it ends up +5F with a 10mph wind.

Dew, you really want to hurt me Dew, you really want to make me cry

These are avg dews for given temps. You can see as you get near 100F and over it there's actually a trend toward lower dews versus mid 90s temps.

We've had worse, but that is pretty extreme. There's not a lot of mid/upper 90s with mid/upper 70s dews in our historical records.