meatwad

Mesoscale Precipitation Discussion 0153 NWS Weather Prediction Center College Park MD 744 PM EDT Thu Apr 11 2024 Areas affected...portions of Pennsylvania, West Virginia, western Virginia, and western Maryland Concerning...Heavy rainfall...Flash flooding likely Valid 112343Z - 120543Z Summary...A focused axis of training convection is resulting in a prolonged period of 0.25-1.00 inch/hr rates. Areas of flash flooding (locally significant) are likely to continue through 05Z. Discussion...Recent convective trends have exhibited a focused axis of convection extending from near BKW (Beckley, WV) north-northeastward to near Pittsburgh Metro. The band was aligned with strong deep layer convergence on the western side of strong, southerly 850mb flow over the Mid-Atlantic. The band was also oriented parallel to strong south-southwesterly steering flow aloft and immediate downstream of a mid-level wave providing forcing for ascent across the area. 500 J/kg SBCAPE and 1.3 inch PW values were also located within the pre-convective airmass across the region supporting the ongoing convection. The net result of the pattern was an elongated axis of 1-2 inch rainfall totals over the past 3 hours (estimated per MRMS) along with occasional spots of 1 inch/hr rates, all exceeding FFG thresholds across the area and resulting in excessive runoff (locally significant near the Pittsburgh area). The ongoing scenario will persist over the next 4-6 hours, with only a slow translation eastward of the band of convection during that timeframe. This will result in a continued risk of flash flooding across the discussion area. Although slight boundary layer cooling may occur ahead of the band, ascent/cooling aloft associated with the mid-level wave centered over Kentucky and continued warm advection ahead of the band should maintain at least 500 J/kg SBCAPE ahead of the convective band. Ongoing flash flood impacts are expected to continue through 05Z. Cook ATTN...WFO...BUF...CLE...CTP...JKL...LWX...MRX...PBZ...RLX... RNK... ATTN...RFC...LMRFC...MARFC...NERFC...OHRFC...SERFC...NWC... LAT...LON 42077899 41977785 41117744 39457746 37927863 36667984 36258102 37428231 38408286 39148216 40438105 41138046 41917963

Flash Flood Warning Flash Flood Warning PAC003-125-022000- /O.EXT.KPBZ.FF.W.0001.000000T0000Z-240402T2000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED Flash Flood Warning National Weather Service Pittsburgh PA 1033 AM EDT Tue Apr 2 2024 The National Weather Service in Pittsburgh has extended the * Flash Flood Warning for... Allegheny County in southwestern Pennsylvania... Northeastern Washington County in southwestern Pennsylvania... * Until 400 PM EDT. * At 1033 AM EDT, local law enforcement reported road closures due to flash flooding across the warned area. Between 1.5 and 2.5 inches of rain have fallen. Additional rainfall amounts of 1 to 3 inches are possible in the warned area through this evening. Flash flooding is already occurring. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Law enforcement reported. IMPACT...Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas. * Some locations that will experience flash flooding include... Pittsburgh, Penn Hills, Mount Lebanon, Bethel Park, Ross Township, McCandless Township, Monroeville, Moon Township, McMurray, McKeesport, Franklin Park, Canonsburg, Gastonville, Shaler Township, Plum, West Mifflin, North Side Pittsburgh, Baldwin, Upper St. Clair and Hampton Township. Local law enforcement has reported road closures due to flash flooding occurring in Emsworth and Millvale, as well as Hampton, Ross, and Shaler Townships. PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around, don`t drown when encountering flooded roads. Most flood deaths occur in vehicles. Be aware of your surroundings and do not drive on flooded roads. && LAT...LON 4060 8019 4061 8018 4061 8015 4062 8015 4059 7989 4045 7976 4039 7975 4039 7976 4030 7979 4026 7994 4025 8014 4029 8024 4040 8026 4055 8026 FLASH FLOOD...OBSERVED EXPECTED RAINFALL RATE...0.5-1 INCH IN 1 HOUR $$ TC

Winter Weather Advisory for Allegheny County Issued by National Weather Service Pittsburgh, PA 8:10 PM EST Fri, Feb 16, 2024 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 AM EST SATURDAY... * WHAT...Snow. Additional snow accumulations between 2 and 4 inches. * WHERE...Portions of northwest, southwest, and western Pennsylvania and northern West Virginia. * WHEN...Until 7 AM EST Saturday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. Plan on slippery road conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... Be prepared for slippery roads. Slow down and use caution while driving. If you are going outside, watch your first few steps taken on stairs, sidewalks, and driveways. These surfaces could be icy and slippery, increasing your risk of a fall and injury. Please report snow or ice accumulations by calling 412-262-1988, posting to the NWS Pittsburgh Facebook page, or using Twitter @NWSPittsburgh. &&

Snowing heavy here in Monroeville

Special Weather Statement for Allegheny County Issued by National Weather Service Pittsburgh, PA 5:52 PM EST Fri, Feb 16, 2024 ...AN AREA OF HEAVY SNOW WILL AFFECT NORTHWESTERN WASHINGTON... SOUTHERN ALLEGHENY...WEST CENTRAL WESTMORELAND...BROOKE AND HANCOCK COUNTIES... At 550 PM EST, an band of heavy snow was located along a line extending from White Oak to near Weirton. The heavy snow is nearly stationary. Locations impacted include... Pittsburgh, Mount Lebanon, Bethel Park, Monroeville, Weirton, McKeesport, Jeannette, West Mifflin, Baldwin, Upper St. Clair, Murrysville, Scott Township, Wilkinsburg, Whitehall, South Park Township, Robinson Township, Munhall, Cecil-Bishop, Jefferson Hills, and North Versailles. This includes the following highways... Pennsylvania Turnpike between mile markers 57 and 67. Interstate 79 in Pennsylvania between mile markers 49 and 59. Interstate 376 in Pennsylvania between mile markers 63 and 68, and between mile markers 73 and 78. Snow will lead to reduced visibilities below one-half mile and quick accumulation on roads, leading to hazardous travel conditions. Slow down and allow extra time when traveling. Increase the distance between your vehicle and those that surround yours. A Winter Weather Advisory is in effect for the area. Please monitor local media outlets and the National Weather Service for further statements.

Snow flurries here

Looks like more radar development https://imgur.com/A4PMmkG

Heavy snow here in Monroeville

shoveled about 3"

gfs gives us 2 to 4"

gfsis 3 to 4" the gem is 6"

https://imgur.com/c9dB6Vnhttps://imgur.com/c9dB6Vn from the central pa thread, cmc gives us around 5 to 6"

comin down good here.

Started thread for Winter 2023-24

Thread for Winter 2023-24.