meatwad Posted July 17, 2012 Share Posted July 17, 2012 URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE PITTSBURGH PA 811 AM EDT TUE JUL 17 2012 ...HOT AND MORE HUMID CONDITIONS RETURN TO THE UPPER OHIO VALLEY... .AN INCREASE IN LOW LEVEL MOISTURE TODAY COMBINED WITH EXPECTED HIGH TEMPERATURES A FEW DEGREES HOTTER THAN THOSE EXPERIENCED ON MONDAY WILL LEAD TO WHAT FEELS LIKE A MUCH HOTTER DAY. HEAT INDEX VALUES ACROSS PORTIONS OF WESTERN PENNSYLVANIA...THE NORTHERN PANHANDLE OF WEST VIRGINIA AND EAST-CENTRAL OHIO WILL REACH OR EXCEED 100 DEGREES DURING THE AFTERNOON HOURS. OHZ039>041-048>050-057>059-068-069-PAZ007-013-014-020-021- WVZ001>004-012-172015- /O.CON.KPBZ.HT.Y.0010.120717T1600Z-120718T0100Z/ TUSCARAWAS-CARROLL-COLUMBIANA-COSHOCTON-HARRISON-JEFFERSON OH- MUSKINGUM-GUERNSEY-BELMONT-NOBLE-MONROE-MERCER-LAWRENCE-BUTLER- BEAVER-ALLEGHENY-HANCOCK-BROOKE-OHIO-MARSHALL-WETZEL- INCLUDING THE CITIES OF...NEW PHILADELPHIA...DOVER... UHRICHSVILLE...CARROLLTON...EAST LIVERPOOL...SALEM...COLUMBIANA... EAST PALESTINE...WELLSVILLE...CALCUTTA...COSHOCTON...CADIZ... HOPEDALE...STEUBENVILLE...ZANESVILLE...CAMBRIDGE... MARTINS FERRY...ST. CLAIRSVILLE...BELLAIRE...BARNESVILLE... SHADYSIDE...BRIDGEPORT...CALDWELL...WOODSFIELD...SHARON... HERMITAGE...GROVE CITY...GREENVILLE...FARRELL...NEW CASTLE... ELLWOOD CITY...BUTLER...ZELIENOPLE...ALIQUIPPA...BEAVER FALLS... AMBRIDGE...MONACA...BEAVER...PITTSBURGH METRO AREA...WEIRTON... BETHANY...WHEELING...MOUNDSVILLE...NEW MARTINSVILLE 811 AM EDT TUE JUL 17 2012 ...HEAT ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO 9 PM EDT THIS EVENING... * LOCATIONS...PORTIONS OF WESTERN PENNSYLVANIA...THE NORTHERN PANHANDLE OF WEST VIRGINIA...AND EAST-CENTRAL OHIO. * HAZARDS...HOT AND HUMID CONDITIONS. * HEAT INDEX VALUES...UP TO 104. * TIMING...THIS AFTERNOON AND THIS EVENING. * IMPACTS...ELDERLY AND YOUNG CHILDREN ARE ESPECIALLY SUSCEPTIBLE TO THE EFFECTS OF THE HEAT AND SHOULD TAKE EXTRA PRECAUTIONS. HEAT STROKE...HEAT EXHAUSTION AND OTHER HEAT RELATED ILLNESSES WILL BE POSSIBLE...ESPECIALLY IF YOU SPEND A SIGNIFICANT AMOUNT OF TIME OUTDOORS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A HEAT ADVISORY MEANS THAT A PERIOD OF HOT TEMPERATURES IS EXPECTED. THE COMBINATION OF HOT TEMPERATURES AND HIGH HUMIDITY WILL COMBINE TO CREATE A SITUATION IN WHICH HEAT ILLNESSES ARE POSSIBLE. DRINK PLENTY OF FLUIDS...STAY IN AN AIR-CONDITIONED ROOM...STAY OUT OF THE SUN...AND CHECK IN ON RELATIVES AND NEIGHBORS. TAKE EXTRA PRECAUTIONS IF YOU WORK OR SPEND TIME OUTSIDE. WHEN POSSIBLE...RESCHEDULE STRENUOUS ACTIVITIES TO EARLY MORNING OR EVENING. KNOW THE SIGNS AND SYMPTOMS OF HEAT EXHAUSTION AND HEAT STROKE. WEAR LIGHT WEIGHT AND LOOSE FITTING CLOTHING WHEN POSSIBLE AND DRINK PLENTY OF WATER. TO REDUCE RISK DURING OUTDOOR WORK...THE OCCUPATIONAL SAFETY AND HEALTH ADMINISTRATION RECOMMENDS SCHEDULING FREQUENT REST BREAKS IN SHADED OR AIR CONDITIONED ENVIRONMENTS. ANYONE OVERCOME BY HEAT SHOULD BE MOVED TO A COOL AND SHADED LOCATION. HEAT STROKE IS AN EMERGENCY - CALL 9 1 1. && $$ Link to comment Share on other sites More sharing options...
Rolling Snowed Posted July 17, 2012 Share Posted July 17, 2012 We are +20 at 850mb this morning but that could warm a degree or two by 0Z....yestereday we went 7 above dry...that would equate to a high of 95 today...I'm not sure if well mix-out as cleanly as we did yesterday when dewpoints fell into the lower 50s in the late afternoon....I like 94-96 across the area this afternoon. Link to comment Share on other sites More sharing options...
blackngoldrules Posted July 17, 2012 Share Posted July 17, 2012 It's already 90 at Noon. Maybe we'll get higher than the forecasted high of 95? I see a decent amount of clouds around today so that might keep it down somewhat. Of course, the humidity too. Link to comment Share on other sites More sharing options...
north pgh Posted July 17, 2012 Author Share Posted July 17, 2012 I really like this Fries person at NWS Pit. Nice in-depth discussions. Remember the days of one little paragraph for short term and long term discussions. 000 FXUS61 KPBZ 171600 AFDPBZ AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE PITTSBURGH PA 1200 PM EDT TUE JUL 17 2012 .SYNOPSIS... HIGH PRESSURE WILL PROVIDE DRY AND HOT WEATHER THROUGH TONIGHT. A COLD FRONT MOVING SOUTH THROUGH THE GREAT LAKES WEDNESDAY AND THURSDAY WILL BRING INCREASING HUMIDITY ALONG WITH SHOWERS AND THUNDERSTORMS. MUCH LESS HUMID AND COOLER CONDITIONS WILL BE THE RULE FROM FRIDAY ONWARD. && .NEAR TERM /THROUGH TONIGHT/... -- Changed Discussion -- NOON EDT UPDATE...UPDATE FOR SLIGHT RISK OF SHOWERS IN THE SOUTHWEST THIS AFTERNOON. REMAINDER OF DISCUSSION FOLLOWS... A VERY STRONG LOW LEVEL THERMAL RIDGE CURRENTLY RESIDES FROM THE CENTRAL PORTION OF THE COUNTRY WITH ITS APEX CURVING ANTI- CYCLONICALLY AROUND A HIGH PRESSURE CENTER INTO THE LOWER GREAT LAKES. CO- LOCATED WITH THIS THERMAL RIDGE IS A VERY NOTICEABLE SURGE OF LOW- LEVEL MOISTURE WITH DEWPOINTS WELL INTO THE 70S EXTENDING UP THE MISSISSIPPI VALLEY INTO THE SOUTHERN HALF OF WISCONSIN. THIS LOW LEVEL MOISTURE AND THERMAL RIDGE COMBINATION SEEMS POISED TO COMBINE WITH STRONGLY MIXED THERMAL PROFILES ACROSS THE LOWER GREAT LAKES AND OHIO VALLEY TO MAKE THINGS PRETTY MISERABLE THIS AFTERNOON. WHILE MODEL AGREEMENT ON THE SETUP IS VERY GOOD AT THIS TIME...THE MODELS HAVE FAILED TO BRING TWO FAIRLY IMPORTANT FACTORS INTO CLEAR FOCUS. FIRST OF ALL...AFTERNOON CONVECTION WITH INCREASED DEWPOINTS SEEMS LIKE IT WILL BE POSSIBLE IN AT LEAST OUR REGION. GIVEN THE TOTAL LACK OF SHEAR...IT SEEMS FAIRLY CLEAR THAT ANY CONVECTION THAT DOES DEVELOP WILL BE DISORGANIZED AT BEST AND PULSE-LIKE AT WORST...HOWEVER THE ROUGHLY 2000 J/KG OF UNCAPPED CAPE ON THE NAM DOES OPEN THE EYES OF A FORECASTER. THE MITIGATING FACTOR TO CARRYING ANY COVERAGE FOR CONVECTION THIS AFTERNOON IS THAT WE REALLY ARE LACKING ANY FOCUSING/LIFTING MECHANISM FOR CONVECTION. A COLD FRONT IS CURRENTLY DRAPED ACROSS THE UPPER GREAT LAKES AND NEW ENGLAND...WHICH SHOWS NO IMMEDIATE HURRY TO HEAD SOUTHWARD...NOT TO MENTION THE FACT THAT OUR AIR MASS SOURCE REGION WAS FAIRLY QUIET ON MONDAY AFTERNOON. AS A RESULT...THUNDERSTORMS WILL NOT BE CARRIED...HOWEVER POPS WILL BE NON-ZERO IN ALL LOCATIONS. THE SECOND ISSUE FOR TODAY`S FORECAST WILL BE TEMPERATURES. THERE IS A WILD DEVIATION IN TEMPERATURES AMONGST GUIDANCE FOR THIS AFTERNOON...PARTICULARLY WIDE CONSIDERING IT IS DAY ONE. THIS SEEMS LIKELY TO BE A BYPRODUCT OF CONVECTION UNLEASHED BY SOME GUIDANCE LIKELY VIA THEIR CONVECTIVE PARAMETERIZATIONS. BECAUSE OF THIS...THE FORECAST TEMPERATURES WERE TRENDED MORE STRONGLY TOWARD THE HIGHER RESOLUTION GUIDANCE...WHICH RELY MUCH LESS HEAVILY ON PARAMETERIZATIONS. IT JUST SO HAPPENS THIS MEANS THE FORECAST WAS TRENDED MORE HEAVILY TOWARD THE HOTTER GUIDANCE FOR THIS AFTERNOON AS A RESULT. FOR INSTANCE...GFS GRIDDED HIGHS AND MAV MOS FOR THIS AFTERNOON AT PIT ARE 93/92 RESPECTIVELY. AT THE SAME TIME...THE NAM GRIDDED/MOS VALUES ARE 98/95. GIVEN THAT YESTERDAY`S HIGH WAS 93 AND TODAY SHOULD SEE INCREASED LOW LEVEL WARMING...MIXING...NOT TO MENTION THE PREVIOUSLY DISCUSSED CONVECTIVE INITIATION ISSUES WITH THE MODELS...THE FORECAST HIGHS WERE GENERALLY RAISED INTO THE MID TO UPPER 90S OVER MUCH OF THE CWA. AFTER A QUITE HOT DAY...LAYER RH VALUES START TO INCREASE GOING INTO TONIGHT. THIS SHOULD START THE TREND TOWARD INCREASED CLOUD COVER AS THE MODELS START THEIR SLOW SOUTHWARD MEANDERING OF THE FRONTAL BOUNDARY DRAPED ACROSS THE GREAT LAKES. AS THIS OCCURS...THE BEST 850 MB THERMAL RIDGING FLOPS DOWN ACROSS THE FORECAST AREA COMMISERATE WITH THE INCREASE IN CLOUD COVER. AS A RESULT...OVERNIGHT LOWS SHOULD STAY UP MUCH HIGHER THAN IN RECENT NIGHTS AND WELL ABOVE NORMAL. GUIDANCE TRENDS TOWARD THE UPPER 60S TO LOWER 70S...HOWEVER THE INCREASE IN CLOUDS AND CONTINUAL INFLUX OF LOW LEVEL MOISTURE WOULD SUGGEST THAT THESE PROGNOSTICATIONS MAY BE TOO LOW. THE FORECAST WAS TRENDED GENERALLY ABOVE GUIDANCE FOR TONIGHT...IN LINE WITH A BLEND OF THE ECMWF/SREF NUMBERS RATHER THAN STATISTICAL OR GFS/NAM NUMBERS TO TRY TO KEEP THE DIURNAL LIMITED. FRIES -- End Changed Discussion -- && .SHORT TERM /WEDNESDAY THROUGH THURSDAY/... THE COLD FRONT OVER THE GREAT LAKES FINALLY STARTS TO ENTER THE PICTURE FOR WEDNESDAY...HOWEVER BEFORE IT PASSES...WE NOW SEEM LIKELY TO SQUEAK OUT ONE LAKE HOT/VERY WARM DAY. MODEL CONSENSUS 850 MB TEMPERATURES SEEM POISED TO AGAIN PEAK OUT NEAR 20C...HOWEVER THE LIKELIHOOD OF STRONG INSOLATION DUE TO INCREASED CLOUD COVER AND HIGHER LAYER RH VALUES IS FAR LOWER. AS A RESULT...TEMPERATURES WERE CUT BACK A FEW DEGREES FROM THOSE EXPECTED TUESDAY...HOWEVER THE PROFILE AHEAD OF THE FRONT SHOULD CONTINUE TO BE RELATIVELY WELL MIXED...LEADING TO A DECENT SHOT AT MIXING OUT THE STILL HIGH 850 MB TEMPERATURES OVER THE REGION. THE SECOND FACTOR MAKING IT A HOT DAY WILL BE THE STILL-INCREASING LOW LEVEL MOISTURE CONTENT. DEWPOINTS FROM THE GFS/SREF/GRIDDED MOS ALL SURGE INTO THE MID 70S AHEAD OF THE FRONT ON WEDNESDAY...AND COMBINED WITH TEMPERATURES LIKELY MAKING ANOTHER RUN AT THE LOWER 90S...HEAT INDEX VALUES MAY AGAIN SURPASS 100. THIS MAY REQUIRE ANOTHER HEAT ADVISORY...LIKELY FOR A MORE LIMITED AREA THAN TODAY...HOWEVER DUE TO UNCERTAINTY SURROUNDING CLOUD COVER EXPECTATIONS...ONE WAS NOT HOISTED FOR WEDNESDAY AT THIS TIME. REGARDLESS...IT MAY WELL FEEL NEARLY AS HOT ON WEDNESDAY AS TODAY DUE MORE TO HUMIDITY THAN THE TEMPERATURE. AHEAD OF THE SOUTHWARD MOVING FRONT...THE MODELS CONTINUE TO INDICATE STRONG SURFACE-BASED INSTABILITY. GFS AND NAM DEPICTIONS HAVE SHOWN BETWEEN 2500 AND 4000 J/KG OF CAPE FOR SEVERAL RUNS WITH LIFT INDEX VALUES SUB -6 FOR JUST AS MANY RUNS. WITH THE ADDED LIFTING MECHANISM INTO THE PICTURE VIA FRONTAL LIFT...WIDESPREAD SHOWERS AND THUNDERSTORMS SEEM LIKELY. WHILE THE FRONT WILL GIVE THEM AN AREA TO FOCUS...BULK SHEAR ON WEDNESDAY AFTERNOON IS SORELY LACKING. WHILE SPC HAS PLACED OUR AREA IN A SLIGHT RISK...IT SEEMS DUE TO WEAK SHEAR THAT HEAVY RAINFALL IS FAR MORE OF A THREAT THAN DAMAGING WINDS OR LARGE HAIL. IN FACT...THE EXTREMELY HUMID/HOT AIR MASS AHEAD OF THE FRONT MAY MAKE LARGE HAIL VIRTUALLY IMPOSSIBLE TO MANAGE GIVEN THE THERMAL PROFILE AND LIKELIHOOD OF MELTING OF ANY HAIL THAT FORMS ALOFT. AS A RESULT...THE FORECAST FOR WEDNESDAY FOCUSES MORE ON THE HEAVY RAINFALL THREAT...WITH A SECONDARY MENTION OF GUSTY WINDS. IF ANY CONVECTION DOES MANAGE TO GO SEVERE...GIVEN THE LACK OF SHEAR...IT SHOULD BE ISOLATED AND PULSE-LIKE WITH WIND BEING THE ONLY SIGNIFICANT THREAT. FRIES && .LONG TERM /THURSDAY NIGHT THROUGH MONDAY/... THE MODELS HAVE SLOWED DOWN THE SOUTHWARD TRENDING OF THE FRONT LATE IN THE WEEK THROUGH THE AREA. ADDITIONALLY...SOME GUIDANCE EVEN LIKES THE IDEA OF TRACKING A WAVE DOWN THE FRONT ROUGHLY CENTERED AROUND THE THURSDAY NIGHT TIME FRAME. TO ACCOUNT FOR THIS...THE CLEARING AND DRYING FROM THE NORTH WAS SLOWED IN THE FORECAST TO TAKE BASICALLY UNTIL THE WEEKEND TO ENCOMPASS THE ENTIRE AREA. ADDITIONALLY...LOWER DEWPOINTS AND TEMPERATURES WERE SLOWED ABOUT A DAY COMING INTO THE FORECAST AREA. FRIES && .AVIATION /16Z TUESDAY THROUGH SATURDAY/... -- Changed Discussion -- HOT AND HUMID CONDITIONS ACROSS FORECAST AREA THIS AFTERNOON. WIND TO PICK FROM SOUTHWEST WITH SOME GUSTS OF 20 KTS WITH AFTERNOON HEATING AND MIXING. GENERAL VFR CONDITIONS THROUGH TONIGHT AS THE COLD FRONT BRING SOME INCREASING MIDDLE CLOUDS BUT NOT MUCH RISK OF SHOWERS. OUTLOOK...TUESDAY NIGHT THROUGH SATURDAY... COLD FRONT PROGGED TO PUSH SOUTHWARD ACROSS THE GREAT LAKES AND THROUGH THE OHIO VALLEY WEDNESDAY AND THURSDAY. RESTRICTIONS CAN BE EXPECTED IN SCATTERED THUNDERSTORMS AHEAD OF AND ALONG THIS BOUNDARY. PREVAILING VFR WEATHER SHOULD RETURN BY THURSDAY NIGHT AND CONTINUE INTO THE WEEKEND AS SURFACE HIGH PRESSURE BUILDS ACROSS REGION. -- End Changed Discussion -- && .PBZ WATCHES/WARNINGS/ADVISORIES... -- Changed Discussion -- MD...NONE. OH...HEAT ADVISORY UNTIL 9 PM EDT THIS EVENING FOR OHZ039>041- 048>050-057>059-068-069. PA...HEAT ADVISORY UNTIL 9 PM EDT THIS EVENING FOR PAZ007-013-014- 020-021-029-031-073-075. WV...HEAT ADVISORY UNTIL 9 PM EDT THIS EVENING FOR WVZ001>004-012- 021-022. -- End Changed Discussion -- && $$ Link to comment Share on other sites More sharing options...
Digger Posted July 18, 2012 Share Posted July 18, 2012 I really like this Fries person at NWS Pit. Nice in-depth discussions. I agree. SPC has us, probabilistically, with a slight (30%), chance of severe for tomorrow. What's the threshold between "slight" and "moderate"? Link to comment Share on other sites More sharing options...
Rolling Snowed Posted July 18, 2012 Share Posted July 18, 2012 I agree. SPC has us, probabilistically, with a slight (30%), chance of severe for tomorrow. What's the threshold between "slight" and "moderate"? I think this is what you may be looking for: http://www.spc.noaa....e_20060214.html Link to comment Share on other sites More sharing options...
north pgh Posted July 18, 2012 Author Share Posted July 18, 2012 83 degrees out at 11:00 pm. Just had the dog out. Boy is it steamy. Link to comment Share on other sites More sharing options...
meatwad Posted July 18, 2012 Share Posted July 18, 2012 SEVERE THUNDERSTORM WARNING OHC029-081-PAC003-007-125-WVC029-181800- /O.NEW.KPBZ.SV.W.0111.120718T1700Z-120718T1800Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE PITTSBURGH PA 100 PM EDT WED JUL 18 2012 THE NATIONAL WEATHER SERVICE IN PITTSBURGH HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTHEASTERN COLUMBIANA COUNTY IN EAST CENTRAL OHIO... NORTHEASTERN JEFFERSON COUNTY IN EAST CENTRAL OHIO... WEST CENTRAL ALLEGHENY COUNTY IN SOUTHWEST PENNSYLVANIA... SOUTHERN BEAVER COUNTY IN WESTERN PENNSYLVANIA... EXTREME NORTHWESTERN WASHINGTON COUNTY IN SOUTHWEST PENNSYLVANIA... HANCOCK COUNTY IN NORTHERN WEST VIRGINIA... * UNTIL 200 PM EDT * AT 1251 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR WELLSVILLE...MOVING EAST AT 20 MPH. * OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO TOMLINSON RUN STATE PARK... NEWELL... NEW MANCHESTER... NEW CUMBERLAND... WELLSVILLE... TORONTO... HAMMONDSVILLE... BEAVER CREEK STATE PARK... EAST LIVERPOOL... SUN VALLEY... CHESTER... BLACKHAWK... THIS WILL IMPACT THE FOLLOWING HIGHWAY... I-376 BETWEEN MILE MARKERS 36 AND 60. PRECAUTIONARY/PREPAREDNESS ACTIONS... IN ADDITION TO LARGE HAIL AND DAMAGING WIND...CONTINUOUS CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS IMMEDIATELY! LIGHTNING IS A KILLER. IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING. PLEASE REPORT HAIL...STRONG WINDS OR WIND DAMAGE TO THE NATIONAL WEATHER SERVICE BY CALLING TOLL FREE. 1-877-633-6772. && LAT...LON 4070 8016 4042 8016 4042 8075 4074 8075 TIME...MOT...LOC 1700Z 268DEG 16KT 4059 8058 $$ Link to comment Share on other sites More sharing options...
meatwad Posted July 18, 2012 Share Posted July 18, 2012 SEVERE THUNDERSTORM WATCH OUTLINE UPDATE FOR WS 492 NWS STORM PREDICTION CENTER NORMAN OK 115 PM EDT WED JUL 18 2012 SEVERE THUNDERSTORM WATCH 492 IS IN EFFECT UNTIL 900 PM EDT FOR THE FOLLOWING LOCATIONS PAC003-005-007-019-031-051-059-063-065-073-125-129-190100- /O.NEW.KWNS.SV.A.0492.120718T1715Z-120719T0100Z/ PA . PENNSYLVANIA COUNTIES INCLUDED ARE ALLEGHENY ARMSTRONG BEAVER BUTLER CLARION FAYETTE GREENE INDIANA JEFFERSON LAWRENCE WASHINGTON WESTMORELAND $$ Link to comment Share on other sites More sharing options...
CoraopolisWx Posted July 18, 2012 Share Posted July 18, 2012 Some decent rain moving through, should be steady for awhile. Link to comment Share on other sites More sharing options...
Quakertown needs snow Posted July 18, 2012 Share Posted July 18, 2012 heads up Link to comment Share on other sites More sharing options...
meatwad Posted July 18, 2012 Share Posted July 18, 2012 SEVERE THUNDERSTORM WARNING OHC081-PAC003-007-125-WVC009-029-181900- /O.NEW.KPBZ.SV.W.0113.120718T1754Z-120718T1900Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE PITTSBURGH PA 154 PM EDT WED JUL 18 2012 THE NATIONAL WEATHER SERVICE IN PITTSBURGH HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... JEFFERSON COUNTY IN EAST CENTRAL OHIO... WEST CENTRAL ALLEGHENY COUNTY IN SOUTHWEST PENNSYLVANIA... SOUTHERN BEAVER COUNTY IN WESTERN PENNSYLVANIA... NORTHWESTERN WASHINGTON COUNTY IN SOUTHWEST PENNSYLVANIA... HANCOCK COUNTY IN NORTHERN WEST VIRGINIA... BROOKE COUNTY IN NORTHERN WEST VIRGINIA... * UNTIL 300 PM EDT * AT 147 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR RICHMOND...MOVING EAST AT 10 MPH. * OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO SMITHFIELD... RICHMOND... HAMMONDSVILLE... DILLONVALE... JUG RUN... WINTERSVILLE... STEUBENVILLE... NEW CUMBERLAND... WINDSOR HEIGHTS... TOMLINSON RUN STATE PARK... TORONTO... NEW MANCHESTER... THIS WILL IMPACT THE FOLLOWING HIGHWAYS... I-376 BETWEEN MILE MARKERS 45 AND 60. I-70 IN PENNSYLVANIA BETWEEN MILE MARKERS 16 AND 19. I-79 IN PENNSYLVANIA BETWEEN MILE MARKERS 38 AND 47. PRECAUTIONARY/PREPAREDNESS ACTIONS... IN ADDITION TO LARGE HAIL AND DAMAGING WIND...CONTINUOUS CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS IMMEDIATELY! LIGHTNING IS A KILLER. IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM EDT WEDNESDAY EVENING FOR WESTERN MARYLAND AND EAST CENTRAL OHIO AND SOUTHWESTERN PENNSYLVANIA AND NORTHERN WEST VIRGINIA. PLEASE REPORT HAIL...STRONG WINDS OR WIND DAMAGE TO THE NATIONAL WEATHER SERVICE BY CALLING TOLL FREE. 1-877-633-6772. && LAT...LON 4061 8015 4017 8017 4019 8083 4057 8084 TIME...MOT...LOC 1754Z 279DEG 9KT 4046 8073 $$ Link to comment Share on other sites More sharing options...
CoraopolisWx Posted July 18, 2012 Share Posted July 18, 2012 Numerous cloud to ground strikes in my area right now. Nice storm to clean out the air a bit. Link to comment Share on other sites More sharing options...
meatwad Posted July 18, 2012 Share Posted July 18, 2012 getting a bit of hail now, lots of cg strikes, very heavy rain Link to comment Share on other sites More sharing options...
blackngoldrules Posted July 18, 2012 Share Posted July 18, 2012 Just missing me of course. I've seen some lightning and have been getting sprinkles. Whatever I get won't be real heavy from this cell. Link to comment Share on other sites More sharing options...
blackngoldrules Posted July 18, 2012 Share Posted July 18, 2012 That cell basically curved right around me. It was just to the north of me and now it's just to the east of me. How large was the hail Meatwad? Link to comment Share on other sites More sharing options...
meatwad Posted July 18, 2012 Share Posted July 18, 2012 pea sized hail. Link to comment Share on other sites More sharing options...
Digger Posted July 18, 2012 Share Posted July 18, 2012 I was on the job site in Squirell Hill and between about 2 and 2:30 got absolutely pounded by rain. Lots of lightning as well, but no hail. Link to comment Share on other sites More sharing options...
Rolling Snowed Posted July 18, 2012 Share Posted July 18, 2012 Basically just shower activity here in Bridgeville this afternoon and evening...'tis the nature of convection...per SPC a few reports of high winds/damage: 1810 UNK 4 E WEXFORD ALLEGHENY PA 4063 7997 TREES DOWN IN NORTH PARK (PBZ) 1820 UNK BALDWIN ALLEGHENY PA 4036 7997 TREE LIMB DOWNS IN JEFFERSON MEMORIAL CEMETARY (PBZ) 1835 UNK MCKEESPORT ALLEGHENY PA 4034 7984 TREES DOWN (PBZ) Link to comment Share on other sites More sharing options...
Rolling Snowed Posted July 19, 2012 Share Posted July 19, 2012 Caught this image from HPC on my facebook feed...looks like a good chance for those that do see rain the next two days, will be seeing a helluva lot of it! Link to comment Share on other sites More sharing options...
blackngoldrules Posted July 19, 2012 Share Posted July 19, 2012 Caught this image from HPC on my facebook feed...looks like a good chance for those that do see rain today, will be seeing a helluva lot of it! Heavy rains are moving in now. I'm in your neck of the woods today and it looks like it is on our doorstep, according to radar. We need it for sure. I didn't see hardly anything yesterday where I was at. Link to comment Share on other sites More sharing options...
Rolling Snowed Posted July 19, 2012 Share Posted July 19, 2012 Yeah, I'm off today and home to enjoy it BlackNGold...getting dark....luckily my view from the computer is to the N&W....looks like the worst of it may be Southpointe to South Fayette...picking up so good gusts maybe 35ish mph. Link to comment Share on other sites More sharing options...
meatwad Posted July 19, 2012 Share Posted July 19, 2012 SEVERE THUNDERSTORM WARNING PAC003-063-129-192015- /O.NEW.KPBZ.SV.W.0132.120719T1919Z-120719T2015Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE PITTSBURGH PA 319 PM EDT THU JUL 19 2012 THE NATIONAL WEATHER SERVICE IN PITTSBURGH HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTHEASTERN ALLEGHENY COUNTY IN SOUTHWEST PENNSYLVANIA... EXTREME SOUTHWESTERN INDIANA COUNTY IN WEST CENTRAL PENNSYLVANIA... CENTRAL WESTMORELAND COUNTY IN SOUTHWEST PENNSYLVANIA... * UNTIL 415 PM EDT * AT 315 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM. THIS STORM WAS LOCATED NEAR WEST MIFFLIN... MOVING EAST AT 25 MPH. * OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO WILKINSBURG... WEST MIFFLIN... OAKLAND... MCKEESPORT... ELIZABETH BORO... EAST LIBERTY... TURTLE CREEK... MONROEVILLE... MURRYSVILLE... IRWIN... JEANNETTE... DELMONT... THIS WILL IMPACT THE FOLLOWING HIGHWAYS... ROUTE 43 IN PENNSYLVANIA BETWEEN MILE MARKERS 50 AND 53. I-376 BETWEEN MILE MARKERS 73 AND 84. TOLL 66 BETWEEN MILE MARKERS 0 AND 13. I-76 BETWEEN MILE MARKERS 54 AND 76. PRECAUTIONARY/PREPAREDNESS ACTIONS... IN ADDITION TO LARGE HAIL AND DAMAGING WIND...CONTINUOUS CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS IMMEDIATELY! LIGHTNING IS A KILLER. IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING. PLEASE REPORT HAIL...STRONG WINDS OR WIND DAMAGE TO THE NATIONAL WEATHER SERVICE BY CALLING TOLL FREE. 1-877-633-6772. && LAT...LON 4051 7938 4018 7937 4027 7997 4047 7997 TIME...MOT...LOC 1920Z 274DEG 21KT 4036 7986 $$ Link to comment Share on other sites More sharing options...
Rolling Snowed Posted July 19, 2012 Share Posted July 19, 2012 Picked up about 0.40" with the storm...best winds were with the outflow preceding it. Link to comment Share on other sites More sharing options...
meatwad Posted July 20, 2012 Share Posted July 20, 2012 FLASH FLOOD WARNING PAC003-125-202100- /O.NEW.KPBZ.FF.W.0009.120720T1802Z-120720T2100Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE PITTSBURGH PA 202 PM EDT FRI JUL 20 2012 THE NATIONAL WEATHER SERVICE IN PITTSBURGH HAS ISSUED A * FLASH FLOOD WARNING FOR... SOUTHERN ALLEGHENY COUNTY IN SOUTHWEST PENNSYLVANIA... NORTHERN WASHINGTON COUNTY IN SOUTHWEST PENNSYLVANIA... * UNTIL 500 PM EDT * AT 158 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR AND LOCAL RAINFALL GAUGES REPORTED RAINFALL RATES IN EXCESS OF 2.5 INCHES PER HOUR. THIS IS LIKELY CAUSING ADDITIONAL RISING WATER OVER LOCAL ROADWAYS AND IN LOCAL STREAMS...ESPECIALLY ACROSS SOUTHERN ALLEGHENY COUNTY. PRECAUTIONARY/PREPAREDNESS ACTIONS... EXCESSIVE RUNOFF WILL CAUSE FLOODING OF SMALL STREAMS...LOW LYING SPOTS ON ROADS...AND POOR DRAINAGE AREAS. DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROAD. THE WATER DEPTH MAY BE TOO GREAT FOR SAFE PASSAGE. PLEASE REPORT HIGH WATER TO THE NATIONAL WEATHER SERVICE BY CALLING TOLL FREE...1-877-633-6772. LAT...LON 4039 7976 4030 7979 4028 7978 4028 7980 4026 7979 4024 7981 4023 7978 4020 7986 4017 7985 4015 7991 4023 8049 4041 8050 4053 8026 4040 7974 $$ Link to comment Share on other sites More sharing options...
blackngoldrules Posted July 20, 2012 Share Posted July 20, 2012 Flooding all over the place around the South Hills. Road closures on Rt. 51, Lebanon Church RD, Rt. 88, etc. Tough going around the area. Link to comment Share on other sites More sharing options...
CoraopolisWx Posted July 21, 2012 Share Posted July 21, 2012 Besides the flash flooding today, the much needed rain the past few days has been nice. However I would like to see some relief in the midwest and plains. As long as the heat is able to build out there, eventually it will come east again. Link to comment Share on other sites More sharing options...
StormDude81 Posted July 22, 2012 Share Posted July 22, 2012 After a nice cool, yet cloudy day, looks like it's going to get warmer again, and on Monday appears that there could very well be a severe weather, i looks interesting, here's the NAM Significant Tornado Parameter map, pretty high values over Western PA Link to comment Share on other sites More sharing options...
blackngoldrules Posted July 24, 2012 Share Posted July 24, 2012 Wow, we basically went from showers and thunderstorms likely in the forecast for today and tomorrow, with some possibly severe, to just a slight chance of showers for tomorrow. That threat just completely fell apart for this area. I noticed storms were to our south today and then nothing after that. Link to comment Share on other sites More sharing options...
StormDude81 Posted July 24, 2012 Share Posted July 24, 2012 Wow, we basically went from showers and thunderstorms likely in the forecast for today and tomorrow, with some possible severe, to just a slight chance of showers for tomorrow. That threat just completely fell apart for this area. I noticed storms were to our south today and then nothing after that. Well, tonight, most of the area from the Ohio Valley to Western PA/NY is capped, but the Slight Risk of severe is still in place, due to the potential of overnight severe storms, which i think is low, but some low tornado probs and 15% hail/wind probs, then tomorrow our situation could be like on June 29th, start with a low threat of severe and end up being in a moderate risk, some of the models have a large MCS heading from IN into OH then WV/PA tomorrow afternoon, then on Thursday, Western PA could be under the gun for a significant severe event, with a fairly decent storm system moving over the area We got a couple busy days coming up Link to comment Share on other sites More sharing options...
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