TimB Posted August 11, 2021 Share Posted August 11, 2021 The National Weather Service in Pittsburgh has issued a * Severe Thunderstorm Warning for... Northeastern Jefferson County in east central Ohio... Beaver County in western Pennsylvania... Northwestern Washington County in southwestern Pennsylvania... Southern Lawrence County in western Pennsylvania... Southwestern Butler County in west central Pennsylvania... Northwestern Allegheny County in southwestern Pennsylvania... Hancock County in northern West Virginia... * Until 115 PM EDT. * At 1225 PM EDT, a severe thunderstorm was located over Aliquippa, moving southeast at 40 mph. HAZARD...60 mph wind gusts. SOURCE...Emergency management. IMPACT...Expect damage to trees and power lines, resulting in some power outages. * Locations impacted include... Pittsburgh, Mount Lebanon, Ross Township, McCandless Township, Cranberry, Moon Township, Weirton, Franklin Park, Aliquippa, Beaver Falls, Monaca, and Shaler Township. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. This is a DANGEROUS SITUATION. This storm is producing widespread wind damage across Beaver County. SEEK SHELTER NOW inside a sturdy structure and stay away from windows! Link to comment Share on other sites More sharing options...
KPITSnow Posted August 11, 2021 Share Posted August 11, 2021 In Wexford and looks like the apocalypse rolling in. Link to comment Share on other sites More sharing options...
TimB Posted August 11, 2021 Share Posted August 11, 2021 12:51 obs at the airport had a gust to 46. Link to comment Share on other sites More sharing options...
Ahoff Posted August 11, 2021 Author Share Posted August 11, 2021 Tomorrow high is forecast at 93, record is 94. Let's see if we make a run. If we make it to 94 it would be the first record high in August since 1995! Link to comment Share on other sites More sharing options...
TimB Posted August 11, 2021 Share Posted August 11, 2021 4 minutes ago, Ahoff said: Tomorrow high is forecast at 93, record is 94. Let's see if we make a run. If we make it to 94 it would be the first record high in August since 1995! August 1995... Tomorrow is the easiest record high in August to break or tie, the earliest of 4 days in August with a record high of 94. I guess if we have a shot, I’m in. Link to comment Share on other sites More sharing options...
Ahoff Posted August 11, 2021 Author Share Posted August 11, 2021 37 minutes ago, TimB84 said: August 1995... Tomorrow is the easiest record high in August to break or tie, the earliest of 4 days in August with a record high of 94. I guess if we have a shot, I’m in. I was born January '95, so I don't remember, but was told how hot it was. Also, that was the last year we hit 100. Anyway, NWS bumped tomorrow's temperature to 94. Link to comment Share on other sites More sharing options...
donyewest Posted August 11, 2021 Share Posted August 11, 2021 1 hour ago, Ahoff said: Tomorrow high is forecast at 93, record is 94. Let's see if we make a run. And lots of ground moisture for the sun to crank up the dew point too if it so much as even peaks around a cloud. Totally awesome weather to work in while I clear a huge oak that fell in the backyard starting tonight, unfortunately. Link to comment Share on other sites More sharing options...
Ahoff Posted August 11, 2021 Author Share Posted August 11, 2021 44 minutes ago, donyewest said: And lots of ground moisture for the sun to crank up the dew point too if it so much as even peaks around a cloud. Totally awesome weather to work in while I clear a huge oak that fell in the backyard starting tonight, unfortunately. What would limit the temperature rising that high is the high humidity levels. Link to comment Share on other sites More sharing options...
Ahoff Posted August 11, 2021 Author Share Posted August 11, 2021 Wonder if we get at least a heat advisory tomorrow? There is a glaring hole on the hazard map, but that's typical NWS Pittsburgh, lol. Link to comment Share on other sites More sharing options...
TimB Posted August 11, 2021 Share Posted August 11, 2021 1 minute ago, Ahoff said: Wonder if we get at least a heat advisory tomorrow. There is a glaring hole on the hazard map, but typically NWS Pittsburgh, lol. Would think so. Isn’t the criteria a heat index of 100? My point & click has me at 93/73/102 at the peak and 4 hours of a heat index at or above 100. If that’s not a heat advisory, what is? Link to comment Share on other sites More sharing options...
Ahoff Posted August 11, 2021 Author Share Posted August 11, 2021 29 minutes ago, TimB84 said: Would think so. Isn’t the criteria a heat index of 100? My point & click has me at 93/73/102 at the peak and 4 hours of a heat index at or above 100. If that’s not a heat advisory, what is? I thought it was 100. Their point and click mentions 100. Link to comment Share on other sites More sharing options...
TimB Posted August 11, 2021 Share Posted August 11, 2021 4 minutes ago, Ahoff said: I thought it was 100. Their point and click mentions 100. I mean I guess maybe you can get by without issuing one when it’s only one day and it’s marginal. Not sure if that’s the reasoning here. Link to comment Share on other sites More sharing options...
Ahoff Posted August 11, 2021 Author Share Posted August 11, 2021 5 minutes ago, TimB84 said: I mean I guess maybe you can get by without issuing one when it’s only one day and it’s marginal. Not sure if that’s the reasoning here. Yeah, but still that is serious for the elderly and those with breathing difficulty. 1 Link to comment Share on other sites More sharing options...
TimB Posted August 11, 2021 Share Posted August 11, 2021 4 minutes ago, Ahoff said: Yeah, but still that is serious for the elderly and those with breathing difficulty. No disagreement from me on that one. NWS forecast discussion mentions it as “borderline” for headline issuance, with “upper 90s” heat indices. But their point and click (at my location) shows a heat index of 102 and the zone forecast for Allegheny County says “heat index up to 104”. I’m not saying they shouldn’t issue one, just trying to come up with a reason they haven’t. Link to comment Share on other sites More sharing options...
Ahoff Posted August 11, 2021 Author Share Posted August 11, 2021 43 minutes ago, TimB84 said: No disagreement from me on that one. NWS forecast discussion mentions it as “borderline” for headline issuance, with “upper 90s” heat indices. But their point and click (at my location) shows a heat index of 102 and the zone forecast for Allegheny County says “heat index up to 104”. I’m not saying they shouldn’t issue one, just trying to come up with a reason they haven’t. No it makes sense why. I’m still skeptical we get above 92. Link to comment Share on other sites More sharing options...
TimB Posted August 11, 2021 Share Posted August 11, 2021 4 minutes ago, Ahoff said: No it makes sense why. I’m still skeptical we get above 92. Storms have washed out the last two afternoons more than they were expected to, and although tomorrow looks less conducive for storms than either yesterday or today, the NWS is hedging their bets. Link to comment Share on other sites More sharing options...
Rd9108 Posted August 12, 2021 Share Posted August 12, 2021 Some really good lightning tonight. 1 Link to comment Share on other sites More sharing options...
Ahoff Posted August 12, 2021 Author Share Posted August 12, 2021 Heat advisory for today. Always the last to the party, but we made it, lol. Link to comment Share on other sites More sharing options...
Ahoff Posted August 12, 2021 Author Share Posted August 12, 2021 Getting very cloudy. Probably going to be tough to even hit 90 if the clouds don't break quickly. Link to comment Share on other sites More sharing options...
TimB Posted August 12, 2021 Share Posted August 12, 2021 37 minutes ago, Ahoff said: Getting very cloudy. Probably going to be tough to even hit 90 if the clouds don't break quickly. Should be some clearing this afternoon, but I agree, our chances of tying or breaking a record seem very slim. Need 10+ degrees from 11:30. Max at PIT so far is 83. It probably isn’t impossible to pick up 7 degrees this afternoon, but I would think 11 is a bridge too far, even if we had full clearing. Link to comment Share on other sites More sharing options...
Ahoff Posted August 12, 2021 Author Share Posted August 12, 2021 35 minutes ago, TimB84 said: Should be some clearing this afternoon, but I agree, our chances of tying or breaking a record seem very slim. Need 10+ degrees from 11:30. Max at PIT so far is 83. It probably isn’t impossible to pick up 7 degrees this afternoon, but I would think 11 is a bridge too far, even if we had full clearing. We'll struggle to 90 today. Maybe the NWS shouldn't have triggered the Heat Advisory. They jinxed it, lol! Link to comment Share on other sites More sharing options...
TimB Posted August 12, 2021 Share Posted August 12, 2021 25 minutes ago, Ahoff said: We'll struggle to 90 today. Maybe the NWS shouldn't have triggered the Heat Advisory. They jinxed it, lol! And here comes the first round of thunderstorms to make 90 even harder to reach. Link to comment Share on other sites More sharing options...
north pgh Posted August 12, 2021 Share Posted August 12, 2021 For not having any thunderstorms in April and May...... June July and August are overperforming. 1 Link to comment Share on other sites More sharing options...
meatwad Posted August 12, 2021 Share Posted August 12, 2021 Thunderstorm Warning Severe Weather Statement National Weather Service Pittsburgh PA 1241 PM EDT Thu Aug 12 2021 PAC003-007-019-129-121715- /O.CON.KPBZ.SV.W.0241.000000T0000Z-210812T1715Z/ Beaver PA-Butler PA-Allegheny PA-Westmoreland PA- 1241 PM EDT Thu Aug 12 2021 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 115 PM EDT FOR SOUTHEASTERN BEAVER...SOUTHWESTERN BUTLER...NORTHERN ALLEGHENY AND NORTHWESTERN WESTMORELAND COUNTIES... At 1241 PM EDT, a severe thunderstorm was located over Emsworth, or near Franklin Park, moving southeast at 40 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to trees and power lines, resulting in some power outages. Locations impacted include... Pittsburgh, Penn Hills, Mount Lebanon, Ross Township, McCandless Township, Cranberry, Moon Township, Franklin Park, Aliquippa, Monaca, Shaler Township, and Plum. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. Please report severe weather by calling 412-262-1988, posting to the NWS Pittsburgh Facebook page, or using Twitter @NWSPITTSBURGH. && LAT...LON 4058 7970 4042 7990 4038 8003 4062 8035 4077 8020 TIME...MOT...LOC 1641Z 296DEG 33KT 4053 8012 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...<.75 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ Link to comment Share on other sites More sharing options...
TimB Posted August 12, 2021 Share Posted August 12, 2021 12:30 update from the SPC upped the risk to ENH for areas Pittsburgh and north. Link to comment Share on other sites More sharing options...
Ahoff Posted August 12, 2021 Author Share Posted August 12, 2021 2 hours ago, TimB84 said: And here comes the first round of thunderstorms to make 90 even harder to reach. The weather app says the airport is at 90, so we'll see if that's accurate. Link to comment Share on other sites More sharing options...
TimB Posted August 12, 2021 Share Posted August 12, 2021 4 minutes ago, Ahoff said: The weather app says the airport is at 90, so we'll see if that's accurate. Highest 5-min obs through 3:00 was still 88. Still should be able to get to 90. Link to comment Share on other sites More sharing options...
donyewest Posted August 12, 2021 Share Posted August 12, 2021 85F with 79F dew point at Butler FW7554 = 98F heat index, yuck. All the house windows are fogged over. Link to comment Share on other sites More sharing options...
meatwad Posted August 12, 2021 Share Posted August 12, 2021 SEL3 URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 433 NWS Storm Prediction Center Norman OK 345 PM EDT Thu Aug 12 2021 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Northeastern Ohio Western Pennsylvania The northern West Virginia Panhandle Lake Erie * Effective this Thursday afternoon and evening from 345 PM until 1000 PM EDT. * Primary threats include... Scattered damaging wind gusts to 70 mph likely Isolated large hail events to 1 inch in diameter possible SUMMARY...Thunderstorms are beginning to form in northeastern Ohio, and storm coverage/intensity is expected to increase through the remainder of the afternoon as storms move into western Pennsylvania. The storm environment favors clusters of storms with damaging winds of 60-70 mph, and the strongest storms may also produce isolated large hail near 1 inch diameter. The severe thunderstorm watch area is approximately along and 55 statute miles north and south of a line from 20 miles south southwest of Cleveland OH to 35 miles north northeast of Latrobe PA. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU3). PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A Severe Thunderstorm Watch means conditions are favorable for severe thunderstorms in and close to the watch area. Persons in these areas should be on the lookout for threatening weather conditions and listen for later statements and possible warnings. Severe thunderstorms can and occasionally do produce tornadoes. && OTHER WATCH INFORMATION...CONTINUE...WW 431...WW 432... AVIATION...A few severe thunderstorms with hail surface and aloft to 1 inch. Extreme turbulence and surface wind gusts to 60 knots. A few cumulonimbi with maximum tops to 550. Mean storm motion vector 28035. ...Thompson Link to comment Share on other sites More sharing options...
TimB Posted August 12, 2021 Share Posted August 12, 2021 Still time, but I think we’re at risk of a proper 89ing. You’ll never hear me complain about that. Link to comment Share on other sites More sharing options...
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