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Pittsburgh, PA Thread: Late Winter/Early Spring 2015


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Severe Thunderstorm Warning


SEVERE THUNDERSTORM WARNING

PAC003-007-125-302200-

/O.NEW.KPBZ.SV.W.0125.150630T2127Z-150630T2200Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WARNING

NATIONAL WEATHER SERVICE PITTSBURGH PA

527 PM EDT TUE JUN 30 2015

THE NATIONAL WEATHER SERVICE IN PITTSBURGH HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...

SOUTHERN BEAVER COUNTY IN WESTERN PENNSYLVANIA...

NORTHERN WASHINGTON COUNTY IN SOUTHWESTERN PENNSYLVANIA...

NORTHWESTERN ALLEGHENY COUNTY IN SOUTHWESTERN PENNSYLVANIA...

* UNTIL 600 PM EDT

* AT 527 PM EDT...A SEVERE THUNDERSTORM WAS LOCATED 8 MILES WEST OF

IMPERIAL...OR 10 MILES NORTHEAST OF WEIRTON...MOVING EAST AT 35

MPH.

HAZARD...60 MPH WIND GUSTS AND NICKEL SIZE HAIL.

SOURCE...RADAR INDICATED.

IMPACT...EXPECT DAMAGE TO ROOFS...SIDING AND TREES.

* LOCATIONS IMPACTED INCLUDE...

PITTSBURGH...MOUNT LEBANON...ROSS TOWNSHIP...MCCANDLESS TOWNSHIP...

MOON TOWNSHIP...FRANKLIN PARK...ALIQUIPPA...SHALER TOWNSHIP...NORTH

SIDE PITTSBURGH...BALDWIN...HAMPTON TOWNSHIP...SCOTT TOWNSHIP...

ROBINSON TOWNSHIP...ECONOMY...DORMONT...BELLEVUE...CARNEGIE...

KENNEDY TOWNSHIP...AMBRIDGE AND WEXFORD.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A

BUILDING.

PLEASE REPORT SEVERE WEATHER BY CALLING 4 1 2...2 6 2...1 9 8 8...

POSTING TO THE

NWS PITTSBURGH FACEBOOK PAGE...OR USING TWITTER AT NWSPITTSBURGH.

&&

LAT...LON 4039 7992 4042 8044 4055 8048 4066 7996

TIME...MOT...LOC 2127Z 263DEG 32KT 4049 8041

HAIL...0.88IN

WIND...60MPH

$$

24

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Watches, Warnings & Advisories

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Local weather forecast by "City, St" or zip code
 

3 products issued by NWS for: 2 Miles NNE Monroeville PA


Severe Thunderstorm Warning
SEVERE THUNDERSTORM WARNINGPAC003-129-302300-/O.NEW.KPBZ.SV.W.0127.150630T2230Z-150630T2300Z/BULLETIN - IMMEDIATE BROADCAST REQUESTEDSEVERE THUNDERSTORM WARNINGNATIONAL WEATHER SERVICE PITTSBURGH PA630 PM EDT TUE JUN 30 2015THE NATIONAL WEATHER SERVICE IN PITTSBURGH HAS ISSUED A* SEVERE THUNDERSTORM WARNING FOR...  SOUTHEASTERN ALLEGHENY COUNTY IN SOUTHWESTERN PENNSYLVANIA...  WEST CENTRAL WESTMORELAND COUNTY IN SOUTHWESTERN PENNSYLVANIA...* UNTIL 700 PM EDT* AT 630 PM EDT...A SEVERE THUNDERSTORM WAS LOCATED OVER GLASSPORT...  OR OVER MCKEESPORT...MOVING NORTHEAST AT 20 MPH.  HAZARD...60 MPH WIND GUSTS AND QUARTER SIZE HAIL.  SOURCE...RADAR INDICATED.  IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE           TO ROOFS...SIDING AND TREES.* LOCATIONS IMPACTED INCLUDE...  MONROEVILLE...GREENSBURG...MCKEESPORT...JEANNETTE...PLUM...WEST  MIFFLIN...BALDWIN...MURRYSVILLE...MUNHALL...JEFFERSON HILLS...NORTH  VERSAILLES...PLEASANT HILLS...WHITE OAK...CLAIRTON...WILKINS  TOWNSHIP...DUQUESNE...TURTLE CREEK...NORTH BRADDOCK...GLASSPORT AND  IRWIN.PRECAUTIONARY/PREPAREDNESS ACTIONS...FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF ABUILDING.PLEASE REPORT SEVERE WEATHER BY CALLING 4 1 2...2 6 2...1 9 8 8...POSTING TO THENWS PITTSBURGH FACEBOOK PAGE...OR USING TWITTER AT NWSPITTSBURGH.&&LAT...LON 4024 7990 4034 7998 4051 7964 4033 7951TIME...MOT...LOC 2230Z 237DEG 18KT 4032 7988HAIL...1.00INWIND...60MPH$$
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MESOSCALE DISCUSSION 1319
NWS STORM PREDICTION CENTER NORMAN OK
0335 PM CDT TUE JUL 07 2015

AREAS AFFECTED...CNTRL APPALACHIANS...LOWER GREAT LAKES

CONCERNING...SEVERE POTENTIAL...WATCH UNLIKELY

VALID 072035Z - 072300Z

PROBABILITY OF WATCH ISSUANCE...20 PERCENT

SUMMARY...A MARGINAL SEVERE THREAT IS EXPECTED ACROSS THE CNTRL
APPALACHIAN MTNS AND IN THE LOWER GREAT LAKES REGION THIS AFTERNOON.
STRONG GUSTY WINDS WILL BE POSSIBLE AS CELLS INITIATE AND INTENSIFY
OVER THE NEXT FEW HOURS. WW ISSUANCE APPEARS UNLIKELY DUE TO THE
MARGINAL NATURE OF THE THREAT.

DISCUSSION...LATEST SFC ANALYSIS SHOWS A WELL-DEFINED COLD FRONT
LOCATED FROM CNTRL IND NEWD TO LAKE ERIE. AHEAD OF THE FRONT...AN
AXIS OF LOW-LEVEL MOISTURE IS PRESENT WHERE SFC DEWPOINTS ARE
GENERALLY IN THE MID 60S TO LOWER 70S F. AS SFC TEMPS HAVE WARMED
INTO THE 80S F ALONG THE MOIST AXIS...MODERATE INSTABILITY HAS
DEVELOPED WITH MLCAPE VALUES ESTIMATED IN THE 1000 TO 1500 J/KG
RANGE. IN RESPONSE...SCATTERED THUNDERSTORMS HAVE INCREASED IN
COVERAGE ALONG THE CORRIDOR OF MODERATE INSTABILITY FROM ERN KY
NNEWD INTO WRN PA AND WRN NY. REGIONAL WSR-88D VWPS ALONG THIS
CORRIDOR SHOW UNIDIRECTIONAL WIND PROFILES WITH 25 TO 35 KT OF WSWLY
FLOW IN THE LOW TO MID-LEVELS...RESULTING IN ABOUT 20 KT OF 0-6 KM
SHEAR. THIS MAY BE ENOUGH FOR MARGINALLY SEVERE WIND GUSTS WITH
MULTICELLS THAT HAVE ACCESS TO LOCALLY MAXIMIZED INSTABILITY LATE
THIS AFTERNOON.

..BROYLES/MEAD.. 07/07/2015

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SEVERE THUNDERSTORM WARNING

PAC003-005-051-063-129-080030-

/O.NEW.KPBZ.SV.W.0134.150708T0004Z-150708T0030Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WARNING

NATIONAL WEATHER SERVICE PITTSBURGH PA

804 PM EDT TUE JUL 7 2015

THE NATIONAL WEATHER SERVICE IN PITTSBURGH HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...

WESTERN INDIANA COUNTY IN WEST CENTRAL PENNSYLVANIA...

NORTHEASTERN FAYETTE COUNTY IN SOUTHWESTERN PENNSYLVANIA...

SOUTHERN ARMSTRONG COUNTY IN WEST CENTRAL PENNSYLVANIA...

NORTHEASTERN ALLEGHENY COUNTY IN SOUTHWESTERN PENNSYLVANIA...

WESTMORELAND COUNTY IN SOUTHWESTERN PENNSYLVANIA...

* UNTIL 830 PM EDT

* AT 803 PM EDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE

EXTENDING FROM NEAR MONROEVILLE TO NEAR CONNELLSVILLE...MOVING

NORTHEAST AT 45 MPH.

HAZARD...60 MPH WIND GUSTS.

SOURCE...RADAR INDICATED.

IMPACT...EXPECT DAMAGE TO TREES AND SOME POWER OUTAGES

* LOCATIONS IMPACTED INCLUDE...

PITTSBURGH...PENN HILLS...MONROEVILLE...GREENSBURG...INDIANA...

JEANNETTE...LATROBE...VANDERGRIFT...HOMER CITY...APOLLO...PLUM...

MURRYSVILLE...WILKINSBURG...NEW KENSINGTON...LOWER BURRELL...

HARRISON TOWNSHIP...NORTH VERSAILLES...O`HARA TOWNSHIP...WHITE OAK

AND FOREST HILLS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A

BUILDING.

PLEASE REPORT SEVERE WEATHER BY CALLING 4 1 2...2 6 2...1 9 8 8...

POSTING TO THE

NWS PITTSBURGH FACEBOOK PAGE...OR USING TWITTER AT NWSPITTSBURGH.

&&

LAT...LON 4034 7901 4020 7913 4018 7913 4018 7914

4016 7914 4016 7916 4013 7917 4011 7919

4012 7921 4010 7922 4004 7960 4053 7993

4085 7924 4042 7896

TIME...MOT...LOC 0003Z 240DEG 39KT 4046 7976 4005 7950

HAIL...<.75IN

WIND...60MPH

$$

34


SEVERE THUNDERSTORM WARNING

PAC003-005-007-019-080030-

/O.NEW.KPBZ.SV.W.0133.150707T2358Z-150708T0030Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WARNING

NATIONAL WEATHER SERVICE PITTSBURGH PA

758 PM EDT TUE JUL 7 2015

THE NATIONAL WEATHER SERVICE IN PITTSBURGH HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...

WEST CENTRAL ARMSTRONG COUNTY IN WEST CENTRAL PENNSYLVANIA...

EAST CENTRAL BEAVER COUNTY IN WESTERN PENNSYLVANIA...

SOUTHERN BUTLER COUNTY IN WEST CENTRAL PENNSYLVANIA...

NORTHERN ALLEGHENY COUNTY IN SOUTHWESTERN PENNSYLVANIA...

* UNTIL 830 PM EDT

* AT 757 PM EDT...A SEVERE THUNDERSTORM WAS LOCATED OVER ECONOMY...OR

NEAR FRANKLIN PARK...MOVING NORTHEAST AT 35 MPH.

HAZARD...60 MPH WIND GUSTS.

SOURCE...RADAR INDICATED.

IMPACT...EXPECT DAMAGE TO TREES AND SOME POWER OUTAGES

* LOCATIONS IMPACTED INCLUDE...

ROSS TOWNSHIP...MCCANDLESS TOWNSHIP...CRANBERRY...MOON TOWNSHIP...

BUTLER...FRANKLIN PARK...ALIQUIPPA...MONACA...SHALER TOWNSHIP...

HAMPTON TOWNSHIP...ROBINSON TOWNSHIP...HARRISON TOWNSHIP...

ECONOMY...KENNEDY TOWNSHIP...AMBRIDGE...WEXFORD...

HOMEACRE-LYNDORA...WEST VIEW...STOWE TOWNSHIP AND CORAOPOLIS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A

BUILDING.

PLEASE REPORT SEVERE WEATHER BY CALLING 4 1 2...2 6 2...1 9 8 8...

POSTING TO THE

NWS PITTSBURGH FACEBOOK PAGE...OR USING TWITTER AT NWSPITTSBURGH.

&&

LAT...LON 4071 7959 4048 8013 4062 8032 4100 7999

TIME...MOT...LOC 2357Z 226DEG 30KT 4062 8014

HAIL...<.75IN

WIND...60MPH

$$

34

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MESOSCALE DISCUSSION 1337
NWS STORM PREDICTION CENTER NORMAN OK
1027 AM CDT THU JUL 09 2015

AREAS AFFECTED...WV/SOUTHEAST OH INTO WESTERN PA/FAR WESTERN MD

CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE

VALID 091527Z - 091730Z

PROBABILITY OF WATCH ISSUANCE...40 PERCENT

SUMMARY...SEVERE WEATHER INCLUDING THE RISK FOR DAMAGING WINDS AND
POSSIBLY A TORNADO IS EXPECTED TO GRADUALLY INCREASE THROUGH EARLY
AFTERNOON ACROSS WV/FAR SOUTHEAST OH INTO WESTERN PORTIONS OF PA/MD.
MONITORING FOR A POSSIBLE WATCH ISSUANCE AS EARLY AS MIDDAY/EARLY
AFTERNOON ACROSS PARTS OF THE REGION...WITH A WATCH ISSUANCE
BECOMING INCREASINGLY LIKELY WITH EASTWARD EXTENT INTO PA/MD LATER
TODAY.

DISCUSSION...REGIONAL 12Z OBSERVED SOUNDINGS AND MORE CONTEMPORARY
WSR-88D VWP DATA SAMPLE A SEASONALLY STRONG DEEP-LAYER WIND FIELD
OVER THE OH VALLEY...HIGHLIGHTED BY AS MUCH AS 40-50 KT
WEST-SOUTHWESTERLY WINDS WITHIN THE LOWEST 2-5 KM AGL ASSOCIATED
WITH AN EASTWARD-MOVING VORT MAX/MCV. A 1011 MB SURFACE LOW NEAR
LAKE ERIE AT 15Z WILL CONTINUE EASTWARD TODAY WHILE A TRAILING COLD
FRONT ALSO MOVES EASTWARD ACROSS THE MIDDLE/UPPER OH VALLEY.

WITHIN THE PRE-COLD FRONT WARM SECTOR...ONE RELATIVELY LOW-TOPPED
UPDRAFT/THUNDERSTORM HAS ALREADY EXHIBITED GRADUAL SIGNS OF
INTENSIFICATION ACROSS FAR SOUTH-CENTRAL/SOUTHEAST OH AS OF 15Z.
ALTHOUGH SOME CLOUD BILLOWS /IMPLICATIONS OF STABILITY/ STILL
PERSIST AHEAD OF THIS STORM...THE WARM SECTOR ACROSS WV/SOUTHEAST OH
INTO NEARBY SOUTHWEST PA/WESTERN MD CONTINUES TO STEADILY WARM IN
CONJUNCTION WITH LOWER 70S F SURFACE DEWPOINTS. THUS...INCREASING
STORM DEVELOPMENT/INTENSIFICATION IS PROBABLE INTO THE AFTERNOON
INTO WV AND NEARBY PA/MD. A COLLOCATED BELT OF STRENGTHENING WINDS
AND WEAK TO MODERATE BUOYANCY WILL BE FAVORABLE FOR ORGANIZED STORM
MODES INCLUDING FAST-MOVING LINE SEGMENTS/BOWS AND THE POSSIBILITY
OF AT LEAST SOME WEAK/TRANSIENT SUPERCELLS CAPABLE OF WIND DAMAGE
AND POTENTIALLY SOME TORNADO RISK.

..GUYER/MEAD.. 07/09/2015

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BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PITTSBURGH PA
112 PM EDT THU JUL 9 2015

THE NATIONAL WEATHER SERVICE IN PITTSBURGH HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
SOUTHWESTERN FAYETTE COUNTY IN SOUTHWESTERN PENNSYLVANIA...
GREENE COUNTY IN SOUTHWESTERN PENNSYLVANIA...
SOUTHERN WASHINGTON COUNTY IN SOUTHWESTERN PENNSYLVANIA...
NORTHEASTERN WETZEL COUNTY IN NORTHERN WEST VIRGINIA...
NORTHERN MONONGALIA COUNTY IN NORTHERN WEST VIRGINIA...
SOUTHEASTERN MARSHALL COUNTY IN NORTHERN WEST VIRGINIA...

* UNTIL 145 PM EDT

* AT 112 PM EDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR HUNDRED...OR
17 MILES NORTHWEST OF MANNINGTON...MOVING EAST AT 40 MPH.

HAZARD...60 MPH WIND GUSTS.

SOURCE...RADAR INDICATED.

IMPACT...EXPECT DAMAGE TO TREES AND SOME POWER OUTAGES

* LOCATIONS IMPACTED INCLUDE...
WAYNESBURG...MASONTOWN...BROWNSVILLE...FREDERICKTOWN-MILLSBORO...
JEFFERSON BORO...FAIRDALE...POINT MARION...CAMERON...HUNDRED...
ISABELLA...ROGERSVILLE...NEMACOLIN...BOBTOWN...CARMICHAELS...RICES
LANDING...ALEPPO...GREENSBORO...CLARKSVILLE...CENTERVILLE AND
BLACKSVILLE.

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MESOSCALE DISCUSSION 1339
NWS STORM PREDICTION CENTER NORMAN OK
1159 AM CDT THU JUL 09 2015

AREAS AFFECTED...PORTIONS OF PA/MD/WV AND FAR NORTH VA

CONCERNING...SEVERE POTENTIAL...TORNADO WATCH LIKELY

VALID 091659Z - 091900Z

PROBABILITY OF WATCH ISSUANCE...95 PERCENT

SUMMARY...A TORNADO WATCH WILL LIKELY BE NEEDED FOR AN INCREASING
DAMAGING WIND/ISOLATED TORNADO RISK BY MID/LATE AFTERNOON
PARTICULARLY ACROSS CENTRAL/EASTERN PORTIONS OF PA/MD/WV AND
ADJACENT FAR NORTHERN VA.

DISCUSSION...A SURFACE LOW CONTINUES TO SHIFT EASTWARD ACROSS LAKE
ERIE VICINITY TOWARD NORTHERN PA EARLY THIS AFTERNOON...WHILE A
PRECEDING WARM FRONT WILL CONTINUE TO GRADUALLY SPREAD NORTHWARD
ACROSS PA/NJ. UPSTREAM STORMS CURRENTLY ACROSS NORTHERN WV/FAR
SOUTHWEST PA AT 17Z SHOULD FURTHER INCREASE AND POTENTIALLY GROW
UPSCALE OVER TIME...WHILE ADDITIONAL/SEMI-DISCRETE STORMS SHOULD
ALSO DEVELOP/INCREASE JUST AHEAD OF/PERIPHERAL TO THIS ACTIVITY.
INITIAL SIGNS OF THIS MAY ALREADY BE OCCURRING ACROSS CENTRAL PA
COINCIDENT WITH A DEEPENING CU FIELD PER VISIBLE SATELLITE IMAGERY
AMID AN INCREASINGLY UNSTABLE/WEAKLY INHIBITED WARM SECTOR.

ORGANIZED STORM MODES INCLUDING WHAT MAY BE A COMBINATION OF
SEMI-DISCRETE SUPERCELLS AND AN UPSCALE-GROWING CONVECTIVE LINE/BOWS
WILL BE AIDED BY A SEASONALLY STRONG STRENGTHENING BELT OF
LOW/MID-TROPOSPHERIC WEST-SOUTHWESTERLY WINDS AS NOTED IN UPSTREAM
UPPER-AIR OBSERVATIONS. DAMAGING WINDS CAN BE EXPECTED WITH THE
STRONGER STORMS...WITH SOME TORNADO POTENTIAL AS WELL...PARTICULARLY
IN CLOSER PROXIMITY TO THE SURFACE LOW/WARM FRONT ACROSS PA /AND
EVENTUALLY NJ/.

..GUYER/MEAD.. 07/09/2015

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BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE PITTSBURGH PA
127 PM EDT THU JUL 9 2015

THE NATIONAL WEATHER SERVICE IN PITTSBURGH HAS ISSUED A

* TORNADO WARNING FOR...
SOUTHWESTERN FAYETTE COUNTY IN SOUTHWESTERN PENNSYLVANIA...
SOUTHEASTERN GREENE COUNTY IN SOUTHWESTERN PENNSYLVANIA...
NORTHEASTERN MONONGALIA COUNTY IN NORTHERN WEST VIRGINIA...

* UNTIL 145 PM EDT

* AT 127 PM EDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
TORNADO WAS LOCATED 10 MILES NORTHEAST OF HUNDRED...OR 10 MILES
SOUTHWEST OF WAYNESBURG...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.

* THIS TORNADIC THUNDERSTORM WILL REMAIN OVER MAINLY RURAL AREAS OF
SOUTHWESTERN FAYETTE...SOUTHEASTERN GREENE AND NORTHEASTERN
MONONGALIA COUNTIES...INCLUDING THE FOLLOWING LOCATIONS...MOUNT
MORRIS...PENTRESS...SPRAGGS...NEMACOLIN...BRAVE...BLACKSVILLE...
CARMICHAELS...BOBTOWN...GREENSBORO AND CHEAT LAKE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

 

--------------------------------------------------------------------------------------------------------

 

WATCH COUNTY NOTIFICATION FOR WATCH 397
NATIONAL WEATHER SERVICE PITTSBURGH PA
129 PM EDT THU JUL 9 2015

MDC023-PAC005-031-051-053-059-063-065-129-WVC049-061-077-093-
100100-
/O.NEW.KPBZ.TO.A.0397.150709T1729Z-150710T0100Z/

THE NATIONAL WEATHER SERVICE HAS ISSUED TORNADO WATCH 397 IN
EFFECT UNTIL 9 PM EDT THIS EVENING FOR THE FOLLOWING AREAS

IN MARYLAND THIS WATCH INCLUDES 1 COUNTY

IN WESTERN MARYLAND

GARRETT

IN PENNSYLVANIA THIS WATCH INCLUDES 8 COUNTIES

IN NORTHWEST PENNSYLVANIA

FOREST

IN SOUTHWEST PENNSYLVANIA

FAYETTE GREENE WESTMORELAND

IN WEST CENTRAL PENNSYLVANIA

ARMSTRONG CLARION INDIANA
JEFFERSON PA

IN WEST VIRGINIA THIS WATCH INCLUDES 4 COUNTIES

IN NORTHERN WEST VIRGINIA

MARION MONONGALIA PRESTON
TUCKER

THIS INCLUDES THE CITIES OF...BROOKVILLE...CLARION...FAIRMONT...
GREENSBURG...INDIANA...KINGWOOD...KITTANNING...LATROBE...
MORGANTOWN...OAKLAND MD...PARSONS...TIONESTA...
UNIONTOWN AND WAYNESBURG.

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   MESOSCALE DISCUSSION 1410   NWS STORM PREDICTION CENTER NORMAN OK   1044 AM CDT TUE JUL 14 2015   AREAS AFFECTED...OH...WRN PA   CONCERNING...SEVERE POTENTIAL...WATCH LIKELY    VALID 141544Z - 141645Z   PROBABILITY OF WATCH ISSUANCE...80 PERCENT   SUMMARY...THUNDERSTORMS ARE EXPECTED TO INCREASE IN COVERAGE AND   INTENSITY ACROSS NORTHERN OH OVER THE NEXT FEW HOURS.  THIS ACTIVITY   WILL PROPAGATE SEWD TOWARD THE OH RIVER WITH THE PRIMARY THREAT   BEING DAMAGING WINDS.   DISCUSSION...BOUNDARY LAYER LAPSE RATES ARE STEEPENING WITHIN   CLOUD-FREE CORRIDOR FROM WRN LAKE ERIE...SWWD INTO CNTRL INDIANA.    SFC-3KM VALUES ARE NOW IN EXCESS OF 7 C/KM AND FURTHER STEEPENING IS   EXPECTED WITH CONTINUED HEATING.  CONVECTION IS GRADUALLY INCREASING   ALONG SRN FLANK OF DEEPER CLOUD SHIELD WITHIN CONFLUENT LOW-LEVEL   FLOW ACROSS NERN INDIANA INTO NWRN OH.  WHILE THIS ACTIVITY MAY   INITIALLY BE SLIGHTLY ELEVATED...CONTINUED DIABATIC HEATING SHOULD   RESULT IN SFC-BASED CONVECTION SOON.  DEEP-LAYER SHEAR SEEMS   SUPPORTIVE OF ORGANIZED DISCRETE UPDRAFTS BUT CURRENT TRENDS SUGGEST   ORGANIZED BANDS MAY ALSO DEVELOP.  LATEST THINKING IS A MARKED   UPWARD TREND IN BOTH COVERAGE AND INTENSITY WILL OCCUR OVER THE NEXT   FEW HOURS WITH SUBSEQUENT MOVEMENT EXPECTED TOWARD THE OH RIVER BY   LATE AFTERNOON.  DAMAGING WINDS ARE THE PRIMARY THREAT...THOUGH   ISOLATED TORNADOES CAN NOT BE RULED OUT WITH DISCRETE SUPERCELLS.   ..DARROW/HART.. 07/14/2015   ATTN...WFO...PBZ...RLX...CLE...ILN...IWX...   LAT...LON   40468487 41518187 41648016 40337998 39228395 40468487 
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MESOSCALE DISCUSSION 1482
NWS STORM PREDICTION CENTER NORMAN OK
0111 PM CDT SUN JUL 19 2015

AREAS AFFECTED...PORTIONS OF CENTRAL AND NORTHERN OHIO...NORTHWEST
PA AND FAR WESTERN NY

CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE

VALID 191811Z - 192015Z

PROBABILITY OF WATCH ISSUANCE...40 PERCENT

SUMMARY...SCATTERED THUNDERSTORMS WILL POSE A STRONG WIND AND HAIL
THREAT THIS AFTERNOON AND EVENING FROM NORTHERN OHIO INTO WESTERN
NY. A WATCH WILL LIKELY BE NEEDED BY 21Z.

DISCUSSION...WIDELY SCATTERED THUNDERSTORMS HAD DEVELOPED ACROSS
NORTHWEST IND ON THE NORTHERN PERIPHERY OF AN MCV OVER WEST-CENTRAL
IND AND IN A WEAK CONFLUENCE ZONE AHEAD OF THE APPROACHING UPPER
SHORTWAVE TROUGH AND SURFACE COLD FRONT. THE DOWNSTREAM AIRMASS
ACROSS NORTHERN OH INTO NORTHWEST PA AND WESTERN NY IS MODERATELY TO
STRONGLY UNSTABLE WITH WEAK EFFECTIVE SHEAR. SHEAR WILL IMPROVE WITH
TIME AS THE SHORTWAVE EJECTS EASTWARD AND ADDITIONAL THUNDERSTORM
DEVELOPMENT IS EXPECTED ALONG DIFFERENTIAL HEATING BOUNDARY/LAKE
BREEZE INTERACTIONS. ADDITIONAL THUNDERSTORMS OVER FAR SOUTHEAST
ONTARIO ALONG THE COLD FRONT WILL TRACK EAST/SOUTHEAST AND MAY
EVENTUALLY CROSS LAKE ONTARIO/ERIE. BOWING SEGMENTS WILL BE THE MAIN
STORM MODE AND STRONG WINDS AND ISOLATED LARGE HAIL WILL BE
POSSIBLE.

..LEITMAN/CORFIDI.. 07/19/2015

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WATCH COUNTY NOTIFICATION FOR WATCH 443
NATIONAL WEATHER SERVICE PITTSBURGH PA
320 PM EDT SUN JUL 19 2015

OHC013-019-029-031-059-067-081-119-157-PAC003-005-007-019-031-053-
063-065-073-085-121-125-129-WVC009-029-069-200300-
/O.NEW.KPBZ.SV.A.0443.150719T1920Z-150720T0300Z/

THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH
443 IN EFFECT UNTIL 11 PM EDT THIS EVENING FOR THE FOLLOWING
AREAS

IN OHIO THIS WATCH INCLUDES 9 COUNTIES

IN EAST CENTRAL OHIO

BELMONT CARROLL COLUMBIANA
COSHOCTON GUERNSEY HARRISON
JEFFERSON OH MUSKINGUM TUSCARAWAS

IN PENNSYLVANIA THIS WATCH INCLUDES 13 COUNTIES

IN NORTHWEST PENNSYLVANIA

FOREST MERCER VENANGO

IN SOUTHWEST PENNSYLVANIA

ALLEGHENY BEAVER WASHINGTON
WESTMORELAND

IN WEST CENTRAL PENNSYLVANIA

ARMSTRONG BUTLER CLARION
INDIANA JEFFERSON PA LAWRENCE

IN WEST VIRGINIA THIS WATCH INCLUDES 3 COUNTIES

IN NORTHERN PANHANDLE OF WEST VIRGINIA

BROOKE HANCOCK OHIO

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MESOSCALE DISCUSSION 1500
NWS STORM PREDICTION CENTER NORMAN OK
1153 AM CDT TUE JUL 21 2015

AREAS AFFECTED...PENNSYLVANIA...NEW YORK...VERMONT

CONCERNING...SEVERE POTENTIAL...WATCH UNLIKELY

VALID 211653Z - 211800Z

PROBABILITY OF WATCH ISSUANCE...20 PERCENT

SUMMARY...FURTHER INTENSIFICATION OF FRONTAL/PRE-FRONTAL
THUNDERSTORM ACTIVITY IS POSSIBLE AS IT ADVANCES SOUTHEASTWARD THIS
AFTERNOON. SOME OF THIS MAY BE ACCOMPANIED BY LOCALIZED WIND GUSTS
THAT MAY REMAIN MOSTLY BELOW SEVERE CRITERIA...BUT COULD
NEVERTHELESS RESULT IN SPORADIC DAMAGE OF AND RELATING TO
TREES/NEARBY POWER LINES. A WATCH IS NOT CURRENTLY
ANTICIPATED...BUT TRENDS WILL CONTINUE TO BE MONITORED.

DISCUSSION...SCATTERED THUNDERSTORM DEVELOPMENT IS NOW WELL UNDERWAY
TO THE LEE OF THE LOWER GREAT LAKES. LOCALLY ENHANCED LOW-LEVEL
CONVERGENCE ALONG THE LAKE BREEZES AND THE SOUTHEASTWARD ADVANCING
COLD FRONT MAY BE CONTRIBUTING TO THIS ACTIVITY...BUT FORCING
ASSOCIATED WITH A FAIRLY VIGOROUS SHORT WAVE IMPULSE PIVOTING
INTO/THROUGH THE LOWER GREAT LAKES REGION MAY BE MORE PROMINENT.

OVERALL...THE ENVIRONMENT DOES NOT APPEAR PARTICULARLY CONDUCIVE TO
SEVERE STORM DEVELOPMENT GIVEN THERMODYNAMIC PROFILES CHARACTERIZED
BY RATHER WEAK TO MODEST LOWER/MID TROPOSPHERIC LAPSE RATES AND
CAPE. A 40-50 KT SOUTHWESTERLY 500 MB JET STREAK IS CONTRIBUTING TO
STRONG DEEP LAYER SHEAR...BUT LOW-LEVEL FLOW APPEARS RATHER
WEAK...AND LOWER/MID TROPOSPHERIC MEAN FLOW IS PROBABLY GENERALLY
ONLY ON THE ORDER OF 30 KT OR LESS.

STILL...WITH ADDITIONAL BOUNDARY LAYER HEATING AND MIXING LIKELY IN
ADVANCE OF THE COLD FRONT AND ASSOCIATED EVOLVING BROKEN CONVECTIVE
LINE...FURTHER INTENSIFICATION OF STORMS DOES SEEM PROBABLE THROUGH
18-21Z...AS ACTIVITY SPREADS THROUGH THE CHAMPLAIN INTO HUDSON
VALLEYS...TOWARD THE CATSKILLS AND POCONOS...AND ACROSS THE
ALLEGHENY MOUNTAINS/ADJACENT AREAS OF CENTRAL AND SOUTHWESTERN
PENNSYLVANIA.

..KERR/CORFIDI.. 07/21/2015
 

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  • 2 weeks later...

Severe Thunderstorm Warning


SEVERE WEATHER STATEMENT

NATIONAL WEATHER SERVICE PITTSBURGH PA

441 PM EDT MON AUG 3 2015

PAC003-129-032115-

/O.CON.KPBZ.SV.W.0150.000000T0000Z-150803T2115Z/

ALLEGHENY PA-WESTMORELAND PA-

441 PM EDT MON AUG 3 2015

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 515 PM EDT

FOR SOUTHEASTERN ALLEGHENY AND NORTHWESTERN WESTMORELAND COUNTIES...

AT 440 PM EDT...A SEVERE THUNDERSTORM WAS LOCATED OVER CASTLE

SHANNON...OR OVER MOUNT LEBANON...MOVING EAST AT 30 MPH.

HAZARD...60 MPH WIND GUSTS AND QUARTER SIZE HAIL.

SOURCE...RADAR INDICATED.

IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE TO

TREES AND SOME POWER OUTAGES.

LOCATIONS IMPACTED INCLUDE...

PITTSBURGH...PENN HILLS...MOUNT LEBANON...BETHEL PARK...

MONROEVILLE...MCKEESPORT...SHALER TOWNSHIP...PLUM...WEST MIFFLIN...

NORTH SIDE PITTSBURGH...BALDWIN...UPPER ST. CLAIR...MURRYSVILLE...

SCOTT TOWNSHIP...WILKINSBURG...WHITEHALL...SOUTH PARK TOWNSHIP...

ROBINSON TOWNSHIP...MUNHALL AND JEFFERSON HILLS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A

BUILDING.

PLEASE REPORT SEVERE WEATHER BY CALLING 4 1 2...2 6 2...1 9 8 8...

POSTING TO THE

NWS PITTSBURGH FACEBOOK PAGE...OR USING TWITTER AT NWSPITTSBURGH.

&&

LAT...LON 4030 8007 4046 8011 4055 7968 4025 7962

TIME...MOT...LOC 2040Z 265DEG 28KT 4036 8001

HAIL...1.00IN

WIND...60MPH

$$

34

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This one just moved through Bethel Park. Very high winds and heavy rain. No hail here though.

 

 

Severe Thunderstorm Warning

SEVERE THUNDERSTORM WARNINGPAC003-051-125-129-032230-/O.NEW.KPBZ.SV.W.0153.150803T2143Z-150803T2230Z/BULLETIN - IMMEDIATE BROADCAST REQUESTEDSEVERE THUNDERSTORM WARNINGNATIONAL WEATHER SERVICE PITTSBURGH PA543 PM EDT MON AUG 3 2015THE NATIONAL WEATHER SERVICE IN PITTSBURGH HAS ISSUED A* SEVERE THUNDERSTORM WARNING FOR...  SOUTHEASTERN ALLEGHENY COUNTY IN SOUTHWESTERN PENNSYLVANIA...  SOUTHWESTERN WESTMORELAND COUNTY IN SOUTHWESTERN PENNSYLVANIA...  NORTH CENTRAL FAYETTE COUNTY IN SOUTHWESTERN PENNSYLVANIA...  EAST CENTRAL WASHINGTON COUNTY IN SOUTHWESTERN PENNSYLVANIA...* UNTIL 630 PM EDT* AT 543 PM EDT...A SEVERE THUNDERSTORM WAS LOCATED OVER UPPER ST.  CLAIR...OR NEAR BETHEL PARK...MOVING EAST AT 40 MPH.  HAZARD...60 MPH WIND GUSTS AND NICKEL SIZE HAIL.  SOURCE...RADAR INDICATED.  IMPACT...EXPECT DAMAGE TO TREES AND SOME POWER OUTAGES* LOCATIONS IMPACTED INCLUDE...  PITTSBURGH...MOUNT LEBANON...BETHEL PARK...MCMURRAY...GREENSBURG...  MCKEESPORT...JEANNETTE...CANONSBURG...GASTONVILLE...WEST MIFFLIN...  BALDWIN...UPPER ST. CLAIR...SCOTT TOWNSHIP...WHITEHALL...SOUTH PARK  TOWNSHIP...ROBINSON TOWNSHIP...MUNHALL...CECIL-BISHOP...JEFFERSON  HILLS AND NORTH VERSAILLES.PRECAUTIONARY/PREPAREDNESS ACTIONS...FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF ABUILDING.PLEASE REPORT SEVERE WEATHER BY CALLING 4 1 2...2 6 2...1 9 8 8...POSTING TO THENWS PITTSBURGH FACEBOOK PAGE...OR USING TWITTER AT NWSPITTSBURGH.&&LAT...LON 4025 8022 4045 8012 4033 7941 4005 7950TIME...MOT...LOC 2143Z 283DEG 33KT 4032 8010HAIL...0.88INWIND...60MPH
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BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PITTSBURGH PA
652 PM EDT MON AUG 3 2015

THE NATIONAL WEATHER SERVICE IN PITTSBURGH HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CENTRAL FAYETTE COUNTY IN SOUTHWESTERN PENNSYLVANIA...
  SOUTHEASTERN WASHINGTON COUNTY IN SOUTHWESTERN PENNSYLVANIA...

* UNTIL 730 PM EDT

* AT 651 PM EDT...A SEVERE THUNDERSTORM WAS LOCATED OVER
  FREDERICKTOWN-MILLSBORO...OR 13 MILES NORTHEAST OF WAYNESBURG...
  MOVING SOUTHEAST AT 30 MPH.

  HAZARD...60 MPH WIND GUSTS AND QUARTER SIZE HAIL.

  SOURCE...RADAR INDICATED.

  IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE
           TO TREES AND SOME POWER OUTAGES.

* LOCATIONS IMPACTED INCLUDE...
  UNIONTOWN...CONNELLSVILLE...CALIFORNIA...BENTLEYVILLE...
  BROWNSVILLE...FREDERICKTOWN-MILLSBORO...SOUTH CONNELLSVILLE...
  FARMINGTON...FAIRCHANCE...ISABELLA...DUNBAR...ELLSWORTH...WEST
  BROWNSVILLE...ROSCOE...DEEMSTON...NEWELL...ALLENPORT...STOCKDALE...
  REPUBLIC AND VANDERBILT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

PLEASE REPORT SEVERE WEATHER BY CALLING 4 1 2...2 6 2...1 9 8 8...
POSTING TO THE NWS PITTSBURGH FACEBOOK PAGE...OR USING TWITTER AT
NWSPITTSBURGH.
 

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BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PITTSBURGH PA
1213 AM EDT TUE AUG 4 2015

THE NATIONAL WEATHER SERVICE IN PITTSBURGH HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
SOUTHEASTERN ALLEGHENY COUNTY IN SOUTHWESTERN PENNSYLVANIA...
SOUTHWESTERN WESTMORELAND COUNTY IN SOUTHWESTERN PENNSYLVANIA...
NORTHEASTERN FAYETTE COUNTY IN SOUTHWESTERN PENNSYLVANIA...
EAST CENTRAL WASHINGTON COUNTY IN SOUTHWESTERN PENNSYLVANIA...

* UNTIL 100 AM EDT

* AT 1212 AM EDT...A SEVERE THUNDERSTORM WAS LOCATED OVER
WASHINGTON...MOVING EAST AT 40 MPH.

HAZARD...60 MPH WIND GUSTS AND QUARTER SIZE HAIL.

SOURCE...RADAR INDICATED.

IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE
TO TREES AND SOME POWER OUTAGES.

* LOCATIONS IMPACTED INCLUDE...
BETHEL PARK...MCMURRAY...GREENSBURG...MCKEESPORT...JEANNETTE...
CANONSBURG...GASTONVILLE...SOUTH PARK TOWNSHIP...JEFFERSON HILLS...
WHITE OAK...MONESSEN...CLAIRTON...CALIFORNIA...DONORA...
GLASSPORT...MOUNT PLEASANT...SCOTTDALE...MONONGAHELA...CHARLEROI
AND IRWIN.

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  • 1 month later...

I don't know about you guys but this summer has been especially boring for weather.  I can count on one hand the number of thunderstorms we've actually gotten, and two of them were during the very early morning hours.  Quite dry since the end of June.  Good thing June was as wet as it was otherwise we'd have a serious drought issue.

 

I'm ready for fall at this point.  Heat can be done.  Then it isn't long until winter storm season.

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