dendrite

I consider 70F regular humidity. lol

Yeah, but by then we're ether side of 90F with regular humidity. I'll look forward to that weather then. I'm all set with the days and days of 100F+ heat indices.

It's fractured, but it hasn't reached Chris Sale severity yet.

64.5° with a steady -RA. A nice change up.

Yup…that backdoor is a cooler airmass, but still humid. There’s 3 airmasses over the region right now.

You can see the backdoor on radar moving through S NH and NE MA

Through Newburyport too so congrats NE MA on the imminent cool down.

DAW too…so there’s the door for coastal sections.

Yeah much more comfortable out now. BOS officially 98° today so no tied record.

I’ve never seen that. But remember ASOS official 1-min readings are actually 5-minute running means in order to “smooth out” the digital readings to make them more analogous with old mercury thermometers. So if you see 36C 37C 36C over the course of 10 minutes that 37C is likely to be the lower end (98F) unless there is a raw 1 min ob in there that spiked high enough to skew the mean up (which can rarely happen with ASOS).

98F is 36.7C…99F is 37.2C…both are 37C ie the 2 possibilities. You generally would want to see multiple obs in a row of 37C to say it crept up from 98° to 99°. If it’s just a 37°C here and there sandwiched by 36C’s it’s likely the lower of the 2 possibilities. The 5 min obs are confusing for most of us that really dig into the numbers. The temp is reported with less precision for the hourlies so it leaves us guessing what the converted F number really is. If they would just report temp/dew like the regular METARS and special obs we wouldn’t be talking about this 10x a year.

It never hit 98.6F. The 5min obs are reported in whole C so it came in as 37C. And it was only a couple of spaced out obs so chances are it was only 98F (36.7C). We'll know for sure later. If 38C gets reported we know that's at least 100F.

95+

@CoastalWx http://online.saiawos.com/GHG/desktop/index.html

Yup...35C can only be 95F.

Nammy and HRRR (to an extent) hit coastal sections with a BD/SB before the main front comes through. It's not through SFM yet.

Your official noon heat indices

Yeah...to get those all time record high mins you usually need clouds and prefrontal wind to keep the air mixed. That 7/5/90 overnight had a front go through before sunrise and by the following 5z it was down to 67F. Mid 80s almost all night with dews is rough though. BDL,1990-07-04 21:00,KBDL 042100Z 23012G20KT 10SM CLR 34/21 A2964 RMK SLP036 T03440211 57025 BDL,1990-07-04 22:00,KBDL 042200Z 25011KT 10SM CLR 34/21 A2963 RMK FEW CI N SLP033 T03390211 BDL,1990-07-04 23:00,KBDL 042300Z 19011KT 10SM CLR 33/22 A2964 RMK FEW CI N SLP036 T03280217 BDL,1990-07-05 00:00,KBDL 050000Z 19008KT 10SM SCT250 32/22 A2966 RMK SLP041 8/001 T03170217 53005 BDL,1990-07-05 01:00,KBDL 050100Z 19011KT 10SM SCT150 SCT250 31/22 A2965 RMK HAZY SLP039 T03060217 BDL,1990-07-05 02:00,KBDL 050200Z 20010KT 7SM SCT150 31/22 A2966 RMK SLP043 T03060217 BDL,1990-07-05 03:00,KBDL 050300Z 25009KT 6SM DZ SCT150 BKN250 31/22 A2966 RMK SLP043 8/071 T03060217 52002 BDL,1990-07-05 04:00,KBDL 050400Z 25009KT 6SM DZ FEW250 29/22 A2964 RMK SLP034 T02940217 BDL,1990-07-05 05:00,KBDL 050500Z 21008KT 6SM DZ FEW250 29/22 A2963 RMK SLP031 T02940217 BDL,1990-07-05 06:00,KBDL 050600Z 20008KT 6SM DZ BKN250 29/21 A2963 RMK SLP032 8/001 T02890211 57010 BDL,1990-07-05 07:00,KBDL 050700Z 17005KT 6SM DZ BKN250 27/21 A2962 RMK SLP029 T02720211 BDL,1990-07-05 08:00,KBDL 050800Z 29013KT 6SM DZ BKN250 30/20 A2965 RMK WND 26V32/ SLP037 T03000200 59086 BDL,1990-07-05 09:00,KBDL 050900Z 30012KT 10SM BKN150 OVC250 29/19 A2964 RMK SLP036 8/071 T02940189 53003 BDL,1990-07-05 10:00,KBDL 051000Z 30011KT 15SM BKN150 OVC250 29/19 A2964 RMK SLP034 T02890189 BDL,1990-07-05 11:00,KBDL 051100Z 30015KT 15SM SCT150 OVC250 29/16 A2968 RMK SLP048 T02890161 BDL,1990-07-05 12:00,KBDL 051200Z 29010KT 20SM SCT140 BKN250 28/16 A2969 RMK SLP053 8/071 T02780161 53017 BDL,1990-07-05 13:00,KBDL 051300Z 26011KT 20SM BKN140 BKN250 28/17 A2970 RMK SLP056 T02830167

Holy shit my mom dropped a swamp azz on me

7/5/90 lol

You may want to look at some of these early AM dates for the warmest BDL overnight.

BDL low was 79. HFD 81. Like DIT said, wiped out this evening.

BD never made it through here…72.5° and dripping wet outside. Also, damn is it dark for almost 6am. I hate losing the light. 1.12” through the tipper and 1.11” in the stratus.

1.04” through the tipper…back to -RA

BOX radar always looks zonked out compared to neighboring sites.