TheClimateChanger

What is the annual mean temperature to date looking like on all of your devices? You should add a year-to-date temperature summary.

Severe Weather Statement National Weather Service Pittsburgh PA 731 PM EDT Wed Jun 26 2024 PAC003-270000- /O.CON.KPBZ.TO.W.0025.000000T0000Z-240627T0000Z/ Allegheny PA- 731 PM EDT Wed Jun 26 2024 ...TORNADO WARNING REMAINS IN EFFECT UNTIL 8 PM EDT FOR CENTRAL ALLEGHENY COUNTY... At 731 PM EDT, severe thunderstorms capable of producing both tornadoes and extensive straight line wind damage were located over Imperial, or 7 miles south of Moon Township, moving east at 40 mph. HAZARD...Tornado. SOURCE...Radar indicated rotation. IMPACT...Flying debris will be dangerous to those caught without shelter. Mobile homes will be damaged or destroyed. Damage to roofs, windows and vehicles will occur. Tree damage is likely. Locations impacted include... Pittsburgh, Penn Hills, Mount Lebanon, West Mifflin, North Side Pittsburgh, Baldwin, Scott Township, Wilkinsburg, Robinson Township, Munhall, Brentwood, Swissvale, Dormont, Carnegie, Crafton, Green Tree, Mount Oliver, Ingram, Homestead and Edgewood. PRECAUTIONARY/PREPAREDNESS ACTIONS... Move to an interior room on the lowest floor of a well-built building away from windows. If you are outdoors, in a mobile home, or in a vehicle, move to the closest substantial shelter and protect yourself from flying debris. && LAT...LON 4043 8028 4047 7988 4038 7989 4040 8026 TIME...MOT...LOC 2328Z 272DEG 33KT 4042 8029 TORNADO...RADAR INDICATED MAX HAIL SIZE...0.00 IN $$ Bookbinder

What's interesting is, unlike many months, in many cases, it has been many decades since these longer POR stations had a warmer June. 1994, 1967, 1943, 1925 & 1919 show up a lot on the list of warm Junes in the commonwealth.

NWS has 98 as the forecast high for downtown Atlanta and KATL. I believe that forecast is for downtown Atlanta. Actually, comparing the two point-click forecasts, KATL is the same or a degree warmer every period.

Interesting. It looks warmer than the IEM estimate, but I'm not sure what data they are drawing off of that... also, the inclusion of May 31 data (7 am) draws it down a bit relative to a 24-hour day. Guess we'll have to wait and see what NCEI shows. Of course, most of the record warm sites have short PORs. But I'd still say the first order climate sites would suggest a top 10 warm June, and probably top 5.

Also, for the urban heat enthusiasts, find the so-called UHI in this set of data. We have one very large city, surrounded by rural areas and small. Urban heat theory would say the city is the hottest spot by far. For the record: I don't doubt UHI exists, this is for the bozos who say it's the cause of the warming and way overplay its impact - especially on trend. Like UHI warms the local environment relative to forests or farmland [mostly w.r.t. overnight lows], but it doesn't cause a never-ending warming trend. Or start warming areas outside of the city and/or oceans. That makes zero sense. If you listen to some of these bozos, the city should be 10F+ warmer.

Ah, interesting. Looks like it's doing an excellent job today as well, with widespread temperatures already between 95 & 100. Dewpoints have dropped back into the 50s in most areas, already see a couple of 40s showing up (KWRB - 99/49; and KOPN 93/41). Might even see some Tds drop into the 30s if this keeps up. Must be a big relief for those of you in the southeast to see those kinds of dewpoints at this time of the year.

If anything, NOAA consistently underplays how much warming has taken place. Just look at this map, and then compare it to the actual rankings of the various first order climate sites. This discrepancy grows more each and every year. And it has nothing to do with UHI, because the trend is the same for rural sites. Every site in the state of Pennsylvania is having a top 10 warmest June, with the exception maybe of Pittsburgh. I think it's top 12, but that's heavily influenced by the fact that the downtown station was nearly 500' lower in elevation. Plus, it goes back to 1874, not 1893 as this map. Several locations are near their warmest Junes on record. Yet NOAA claims it's not been warm at all. Top 15-25 - which is where they have most of the state - is not warm in this era. No idea what data they are looking at.

It could be SPC that’s asleep at the wheel.

Rare to see them trot out the "t" word, especially with SPC not even giving us a 2% chance.

Rest Of Today Partly sunny late this morning, then mostly cloudy with scattered thunderstorms this afternoon. Some thunderstorms may be severe with damaging winds, small hail, heavy rainfall, and tornadoes. Highs in the mid 80s. Southwest winds 10 to 15 mph. Chance of precipitation 50 percent. Tonight Considerable cloudiness. Thunderstorms and showers likely in the evening, then a slight chance of showers and thunderstorms after midnight. Patchy fog. Some thunderstorms may produce damaging winds, small hail, heavy rainfall, and tornadoes in the evening. Humid with lows in the lower 60s. Northwest winds 10 to 15 mph, becoming west around 5 mph after midnight. Chance of rain 70 percent.

Looking like some very comfortable dews in the 50s today for the District.

Nice graphic. This depicts exactly what I had said months ago. I know it's not all of the stations, but you've picked a pretty representative 5-site sample, and demonstrated how every station could have a defined warming trend within a certain time frame but the average of all available stations can show a fake cooling trend if warmer stations are replaced over time by cooler ones [or even if simply more "cooler" stations are added to the station mix over time].

And it looks like dewpoints did in fact drop into the 40s and 50s, at least in the places I looked at. Good work by the HRRR!

Looks like the models did pretty well. Lots of triple digits. I saw a cousin was in Birmingham and posted a picture of his car thermometer reading 110!

Very solid numbers statewide, with many locations in the midst of their warmest June in many decades. Harrisburg [3rd warmest to date, warmest since 1943] Williamsport [6th warmest to date, warmest since 1943] Hagerstown, Maryland [just over the border] [3rd warmest to date] Bradford [shorter POR - 1958] [warmest to date] Dubois [shorter POR - 1963] [2nd warmest to date, behind 1967] Scranton/Wilkes-Barre Area [5th warmest, warmest since 1967]

I guess it depends on the level of rarity you wish to achieve. There have been 13 of those at MDT since 2000 - or a little more frequent than once every other year. 5 days of 90+ would be a little more than once every year. But either is better than the traditional 3 days of 90+.

There's a fine line between rare and climatologically impossible.

IMO, the 3-day threshold is more appropriate for places like Pittsburgh, Cleveland, Detroit, Buffalo, Albany, Boston, etc. Not sure why it became the standard in Harrisburg.

The 3-day definition was never intended for very hot climates like Harrisburg. Pittsburgh has had 26 stretches of 3 or more 90F readings in a row since 2000 - an average of about once per year. When people think of a heat wave, they think of a period of heat that is expected to occur about once a year more or less. Harrisburg, on the other hand, has had 75 stretches of 3 or more 90F readings since 2000 - an average of about 3 per year. To get it to that once per year sweet spot, you should be using 5+ days of 90F or more. There have been 28 of those, or just a little more than once per year.

Nobody uses that definition, nor should they. You realize there are only 6 overnight lows of 80F+ in Harrisburg weather history? None on back-to-back nights.