Mailman

BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service Pittsburgh PA 1012 PM EDT Tue May 28 2019 The National Weather Service in Pittsburgh has issued a * Severe Thunderstorm Warning for... Northeastern Allegheny County in southwestern Pennsylvania... West central Westmoreland County in southwestern Pennsylvania... * Until 1045 PM EDT. * At 1011 PM EDT, a severe thunderstorm was located over Bellevue, or over Ross Township, moving east at 45 mph. HAZARD...Wind gusts to 60 mph and quarter-size hail. SOURCE...Radar. IMPACT...Minor hail damage to vehicles is possible. Expect wind damage to trees and power lines, resulting in some power outages. * Locations impacted include... Pittsburgh... Penn Hills... Mount Lebanon... Ross Township... McCandless Township... Monroeville... Greensburg... McKeesport... Franklin Park... Jeannette... Shaler Township... Plum... This includes the following highways... Interstate 70 in Pennsylvania near mile marker 57. Pennsylvania Turnpike between mile markers 49 and 77. Interstate 79 in Pennsylvania between mile markers 58 and 63. Interstate 376 in Pennsylvania between mile markers 62 and 84. PRECAUTIONARY/PREPAREDNESS ACTIONS... Torrential rainfall is occurring with this storm and may lead to flash flooding. Do not drive your vehicle through flooded roadways. 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.

Special Weather Statement National Weather Service Pittsburgh PA 940 PM EDT Tue May 28 2019 PAZ021>023-073-074-290215- Armstrong-Westmoreland Ridges-Westmoreland-Allegheny-Indiana- 940 PM EDT Tue May 28 2019 ...A STRONG THUNDERSTORM CAPABLE OF PRODUCING HAIL...GUSTY WIND AND HEAVY RAIN WILL AFFECT THE AREA... At 940 PM EDT, a strong thunderstorm was located near Murrysville, or near Apollo, moving southeast at 40 mph. Wind gusts up to 45 mph and hail up to the size of nickels are possible with this storm. Locations impacted include... Penn Hills... Monroeville... Latrobe... Vandergrift... Apollo... Plum... Murrysville... New Kensington... Lower Burrell... McChesneytown-Loyalhanna... Blairsville... Derry... This includes Pennsylvania Turnpike between mile markers 53 and 55. Torrential rainfall also is occurring with this storm and may cause localized flooding. Do not drive your vehicle through flooded roadways.

Mesoscale Discussion 0852 NWS Storm Prediction Center Norman OK 1202 PM CDT Tue May 28 2019 Areas affected...portions of the Mid-Atlantic into the Northeast Concerning...Severe potential...Tornado Watch likely Valid 281702Z - 281900Z Probability of Watch Issuance...95 percent SUMMARY...Storms are expected to develop this afternoon and will likely become severe. Large hail, damaging wind gusts, and a few tornadoes are possible. A tornado watch will likely be issued in the next couple of hours. DISCUSSION...A belt of enhanced mid-level westerly flow of 50-70 knots is stretching across the Great Lakes into the Mid-Atlantic/Northeast. A shortwave trough embedded within this zonal flow currently entering the Great Lakes region will move eastward throughout the day helping to provide forcing for ascent and strengthen deep layer shear. A surface low is located just east-southeast of Buffalo, NY with a warm front stretching to the southeast through northeast PA and central NJ. This warm front should lift east-northeast with the surface low forecast to track generally eastward. The Cu field is becoming increasingly agitated within the warm sector and storms are likely to develop in the next couple of hours. Storms are likely to develop across west/central PA and move east-southeast during the afternoon and evening into portions of NJ/MD/DE/southern NY. Supercell development is likely and few storms may remain discrete. Low-level veering is better to south/east across the region, but flow/shear is stronger farther to the north. Large hail is possible given forecast MLCAPE of 1500-3000 J/kg and effective bulk shear of 35-50 knots. Additionally, strong synoptic winds and steepening low-level lapse rates, especially where strong insolation occurs, will increase the severe wind threat. Tornadoes are possible as well, especially for storms that exhibit more southeast movement, which will maximize SRH per observed/forecast soundings. ..Nauslar/Thompson.. 05/28/2019

Mesoscale Discussion 0785 NWS Storm Prediction Center Norman OK 1153 AM CDT Sat May 25 2019 Areas affected...western NY...western PA...far eastern OH...northern WV and western MD Concerning...Severe potential...Watch possible Valid 251653Z - 251900Z Probability of Watch Issuance...40 percent SUMMARY...Thunderstorms will increase in coverage and intensity over the next couple of hours. Strong to locally damaging wind gusts are possible with the strongest storms, though hail is also possible. A watch may be needed in the next few hours across this region. DISCUSSION...Widely scattered thunderstorms were developing early this afternoon on the nose of eastward surging boundary layer moisture from northwest PA/eastern OH into WV. A warm front was lifting northeast across NY/PA/VA just ahead of this convection. Dewpoints in the mid 60s to near 70 F will spread eastward with time today and convection should increase in coverage and intensity as continued strong heating and destabilization occurs in strong deep layer west/southwesterly flow. Forecast RAP soundings indicated steepening low level lapse rates, with 30-40 kt southwest winds around 760-700 mb at the top of the mixed boundary layer, suggesting strong to locally damaging wind gusts will be possible. While midlevel lapse rates are unimpressive, around 6.5-7 C/km at best, vertical shear will support rotating updrafts and a few supercell structures are possible. This will bring an attendant risk for severe hail with the strongest storms. While forecast LCLs are relatively high at around 3kft, any storm that interacts with the warm front or through favorable cell/outflow interactions, could produce a tornado or two given modestly favorable low level hodographs and effective SRH around 150-200 m2/s2. Convective trends will continue to be monitored and a watch may be needed in the next few hours. ..Leitman/Hart.. 05/25/2019

Watch up until midnight.

Enhanced risk tomorrow. We shall see.

Mesoscale Discussion 0350 NWS Storm Prediction Center Norman OK 0457 PM CDT Sun Apr 14 2019 Areas affected...Eastern ohio...Western Pennsylvania...and far southwest New York Concerning...Severe potential...Watch needed soon Valid 142157Z - 142300Z Probability of Watch Issuance...95 percent SUMMARY...A downstream tornado watch will be needed soon across western Pennsylvania and far southwest New York. DISCUSSION...A line of storms have developed along a pre-frontal trough across Ohio ahead of a 990mb surface low analyzed between Columbus and Akron. The strongest storms may be producing damaging winds at this time. A 20Z PIT sounding is a good proximity sounding for the environment ahead of these storms. Buoyancy is quite weak with MLCAPE only around 200 J/kg substituting current surface observations into the 20Z sounding. Clearing ahead of these storms may allow temperatures to warm slightly during the next hour, but as the boundary layer deepens, surface dewpoints may fall a few degrees due to mixing which would keep buoyancy weak into the evening. However, despite this meager instability, the wind profile remains very supportive of all severe weather hazards with effective shear around 70 knots and 0 to 1 km SRH over 500 m2/s2. This threat will likely be maximized near the warm front in northern Pennsylvania and southern New York where backed surface flow, and higher dewpoints are expected to remain. South of the Pennsylvania border, dewpoints have mixed into the mid 50s which has limited instability to less than 100 J/kg which has greatly reduced the severe threat. ..Bentley/Guyer.. 04/14/2019

We haven't even had a nice size storm to track within like 96 hours. lol. How bad is that?

I had 19" on the ground at one time here within the last 12 months. I'm not going to complain (well, at least try not to) for a little while.

I sure would like to see some snow before the end of the year. That'd be really nice. Everyone keeps asking me when it's going to snow. I usually just say, "Sometime before April."

What's the record for most consecutive days with measurable precipitation? This summer has been awful. Bring on winter!!!

I'd like to say that I'm surprised, but I most certainly am not.

Bring on spring!

Indeed, I did. I'll get over the most recent disappointment in a couple of days.

I've been seeing 'warm nose' or 'warm tongue' in my dreams. In fact, I am considering changing my name on here to swpawarmnose.

Radar back up.

Need the glowing puck back.

Same teams can't win every single season. You have two of the best players in the league... at some point, they need to step up and make a difference.

1st in the Metropolitan and 1st in the Eastern Conference... people want to fire the coach. Typical Pittsburgh sports attitude. Probably the same people that want Pitt to fire Jamie Dixon.