Voyager Posted June 28, 2013 Share Posted June 28, 2013 I was rather pleased with the amount of rain we picked up... until I remembered that my car windows were open. Link to comment Share on other sites More sharing options...
famartin Posted June 28, 2013 Share Posted June 28, 2013 Parents had 2.30" in the CoCoRaHS gauge as of about 10 minutes ago. Here's a picture of my brother's back yard. He's only lived there about a year but he hasn't seen it flood like this before. There is no stream back there, btw. Link to comment Share on other sites More sharing options...
NortheastPAWx Posted June 28, 2013 Share Posted June 28, 2013 Just got back home...it's ugly. Been pouring for the last two hours - saw two intersections flash flooded, and our backyard is a complete mess. Vivid lightning on top of that. Link to comment Share on other sites More sharing options...
ChescoWx Posted June 28, 2013 Share Posted June 28, 2013 Yet another impressive rain event here in NW Chesco here in June - another 1.15" today which puts us at 10.89" for the month...this now represents the 3rd highest June rain total since 1894. With the pattern...there is certainly a shot to get to the wettest June in recorded history. 1938 - 12.18" 2003 - 11.37" Link to comment Share on other sites More sharing options...
Scott W Posted June 28, 2013 Share Posted June 28, 2013 0.80" in West Chester today. Link to comment Share on other sites More sharing options...
famartin Posted June 28, 2013 Share Posted June 28, 2013 Grand total back home yesterday was 2.55". 4.16" for Wednesday and Thursday combined. 11.93" for the month of June. Link to comment Share on other sites More sharing options...
famartin Posted June 28, 2013 Share Posted June 28, 2013 This was on Twitter. (what the hell, we can't post Twitter links on American Wx? It keeps deleting them... ). Its my parent's street, 2 1/2 blocks south of their house. Link to comment Share on other sites More sharing options...
famartin Posted June 28, 2013 Share Posted June 28, 2013 Radar estimate for Mercer... just for yesterday. Most fell in about an hour. Link to comment Share on other sites More sharing options...
Quakertown needs snow Posted June 28, 2013 Share Posted June 28, 2013 Major flooding potential is looming for many folks for next several days. Picked up 1.35" and we have missed many of the big rains last couple weeks so maybe its our turn. Link to comment Share on other sites More sharing options...
Voyager Posted June 28, 2013 Share Posted June 28, 2013 Total of 2.23" from last night's event. I guess we made up for some of those missed events from earlier in the month. Link to comment Share on other sites More sharing options...
Boch23 Posted June 28, 2013 Share Posted June 28, 2013 Pick up .31" yesterday for a total of .71" for the week.Also day 5 of Slight risk I believe with: 30% Wind if your on the PA/MD Border basically 15% for the rest, 15% hail and 2% tornado. ...ERN PORTIONS OF OH VALLEY...MID ATLANTIC THROUGH NERN STATES... WSWLY WINDS ALOFT WILL STRENGTHEN AS A RESULT OF THE AMPLIFYING UPPER TROUGH. UPPER 60S TO NEAR 70 DEWPOINTS WILL EXIST EAST OF LEE TROUGH SUPPORTING MODERATE /1000-2000 J/KG/ MLCAPE AS THE SFC LAYER WARMS DURING THE AFTERNOON. STORMS WILL ONCE AGAIN DEVELOP BY LATE MORNING INTO THE AFTERNOON OVER THE HIGHER TERRAIN AND IN LOW-LEVEL CONVERGENCE ZONE AND SPREAD INTO THE DESTABILIZING WARM SECTOR. OTHER STORMS WILL INITIATE WITHIN THE WEAKLY CAPPED ENVIRONMENT OVER THE OH VALLEY. VERTICAL SHEAR INCREASING TO 30-40 KT WILL SUPPORT POSSIBILITY OF ORGANIZED STORMS INCLUDING POTENTIAL FOR BOWING LINE SEGMENTS AND UPDRAFT ROTATION. ISOLATED DAMAGING WIND AND LARGE HAIL WILL BE THE MAIN THREATS INTO EARLY EVENING. Link to comment Share on other sites More sharing options...
chubbs Posted June 28, 2013 Share Posted June 28, 2013 1.51" yesterday. Wish I had kept accurate track earlier this month Link to comment Share on other sites More sharing options...
NortheastPAWx Posted June 28, 2013 Share Posted June 28, 2013 Locally ~2.90" total. Link to comment Share on other sites More sharing options...
LMolineuxLM1 Posted June 28, 2013 Share Posted June 28, 2013 How much more does Philly have to go? Link to comment Share on other sites More sharing options...
Boch23 Posted June 28, 2013 Share Posted June 28, 2013 9AM update keeps same probabilities from the earlier forecast 30% 15% 2% ...ERN OH VLY TO CAROLINAS/MID-ATLANTIC/NORTHEAST THIS AFTN/EVE... DEEP...MODERATE W TO WSW MID-LVL FLOW WILL PREVAIL OVER MUCH OF THE EAST TODAY...ON DOWNSTREAM SIDE OF AMPLIFYING UPR TROUGH. SFC DEWPOINTS WILL REMAIN IN THE 60S TO NEAR 70 F...ESPECIALLY ALONG LEE TROUGH. SATELLITE SUGGESTS THAT SFC HEATING WILL BE STRONG IN MOST AREAS. GIVEN RELATIVELY COOL MID-LVL TEMPS AND ABSENCE OF APPRECIABLE CIN...SETUP SHOULD YIELD FAIRLY WIDESPREAD COVERAGE OF DIURNALLY-ENHANCED STORMS...ESPECIALLY BY EARLY AFTN FROM VA/WV NEWD INTO ERN PA/NJ/SE NY/CT...AND A BIT LATER IN THE DAY OVER THE WRN/CNTRL CAROLINAS. STORMS INITIALLY MAY FOCUS DOWNSTREAM FROM UPR DISTURBANCES NOW MOVING TOWARD OH/PA/WV...AND A BIT OVER THE SRN APPALACHIANS AND LEE TROUGH. 30-40 KT W TO WSWLY DEEP SHEAR SHOULD PROMOTE STORM SUSTENANCE/ORGANIZATION. ASSOCIATED LINES...BOWING SEGMENTS...AND ROTATING MID-LVL CORES COULD POSE A RISK FOR DMGG WIND GUSTS AND SVR HAIL THROUGH EARLY TNGT. Link to comment Share on other sites More sharing options...
BucksCO_PA Posted June 28, 2013 Share Posted June 28, 2013 How much more does Philly have to go? An even 0.70" to break the June record Link to comment Share on other sites More sharing options...
BucksCO_PA Posted June 28, 2013 Share Posted June 28, 2013 0.61" yesterday 0.87" for the week 9.13" for the month very difficult driving through Oxford Valley / Fairless Hills early last evening, lots of street flooding with the over 2" in 1 hour deluge Link to comment Share on other sites More sharing options...
LMolineuxLM1 Posted June 28, 2013 Share Posted June 28, 2013 An even 0.70" to break the June recordWith that in mind what's the all time any month record rain fall? Link to comment Share on other sites More sharing options...
iceman56 Posted June 28, 2013 Share Posted June 28, 2013 With that in mind what's the all time any month record rain fall? August 2011 - 19.31" Sept 1999 - 13.07" August 1911 - 12.10" That looks out of reach, but 2nd place looks doable... Link to comment Share on other sites More sharing options...
Maximum lawman Posted June 28, 2013 Share Posted June 28, 2013 Thanks all! I'll figure it out eventually. Anyway, today looks pretty good yet again, though I'd say DC to Richmond is really the bullseye today. Link to comment Share on other sites More sharing options...
HM Posted June 28, 2013 Share Posted June 28, 2013 Philly and DC in a tornado watch? With only 25 knots of effective shear? I guess werider things have happened. I think the 2500-3000 CAPE will help to intensify the storms this afternoon. Perhaps the SPC is being extra careful. In their defense, the situation was contingent on a gradual increase in effective shear which was noted on the VAD wind ~ 7-8pm (it was always modeled to come just a little too late). They also made sure to keep the wording as "tornado or two" or "isolated" given the lack of speed shear. Perhaps it could have been centered more N/W but overall it wasn't a terrible decision (esp. with what happened to the west of the big cities). For a while there, I think we all held our breath as 2 lines of low-topped convection (with occasional bursts >40KFT) moved through the region with mild attempts at organizing mesos. I saw a few interesting cloud formations with the first cell that went from Burlington to Mercer. I won't say it was rotating, rotating, but it certainly was close with clear striations, convergence near the inflow notch/appendage. It was close... Hmm, am actually surprised about the tornado watch. I would have thought a severe thunderstorm watch instead. I see the rotation overall as the MCV lifts northeast, but figured the main threat would be locally damaging straight line winds. Yeah I can see either point but I would say it was almost there yesterday between 5-7pm (transient structures/weak attempts at mesos). They did make sure to mention the winds were the main threat, as they usually are in any event but I do understand public perception issues when "tornado watch" is issued over "severe." Link to comment Share on other sites More sharing options...
LMolineuxLM1 Posted June 28, 2013 Share Posted June 28, 2013 So we might get an MD soon and maybe a watch later? Or does the timing play out bad for us in our region? Link to comment Share on other sites More sharing options...
Boch23 Posted June 28, 2013 Share Posted June 28, 2013 So we might get an MD soon and maybe a watch later? Or does the timing play out bad for us in our region? MESOSCALE DISCUSSION 1285 NWS STORM PREDICTION CENTER NORMAN OK 1202 PM CDT FRI JUN 28 2013 AREAS AFFECTED...PORTIONS OH...PA...MD...SERN LOWER MI...DC...WV...NRN VA...EXTREME SRN PORTIONS WRN NY. CONCERNING...SEVERE POTENTIAL...WATCH LIKELY VALID 281702Z - 281900Z PROBABILITY OF WATCH ISSUANCE...95 PERCENT SUMMARY...WW IS REQUIRED FOR PORTIONS SRN PA...MD...NRN VA AND WV...AND ANOTHER WW IS POSSIBLE ELSEWHERE ACROSS BROADER DISCUSSION AREA AS TRENDS INDICATE. DISCUSSION...BROAD AREA OF TSTMS HAS BEEN GRADUALLY BUILDING FROM SERN LOWER MI EWD ACROSS UPPER OH VALLEY REGION AND INTO N-CENTRAL APPALACHIANS. INITIALLY WIDELY SCATTERED COVERAGE SHOULD BECOME MORE DENSE...AND CONVECTION MORE INTENSE...WHILE MOVING INTO INCREASINGLY UNSTABLE BOUNDARY LAYER. MAIN CONCERN IS DAMAGING WIND...WITH OCNL HAIL ALSO POSSIBLE. CONVECTION HAS FORMED IN DECREASINGLY CAPPED AIR MASS...ON BOTH SIDES OF ILL-DEFINED FRONTAL ZONE EXTENDING SWWD FROM SFC LOW OVER UPPER HUDSON RIVER REGION. SFC DEW POINTS GENERALLY 60S F...BUT INCREASING TO NEAR 70 AROUND CHESAPEAKE BAY AND DE VALLEY REGIONS...COMBINE WITH SFC DIABATIC HEATING OF PRECONVECTIVE AIR MASS TO YIELD 1000-1500 J/KG MLCAPE IN MODIFIED RAOBS AND FCST SOUNDINGS. KINEMATIC PROFILES ARE MOSTLY WLY AND NEARLY UNIDIRECTIONAL...INDICATING PREDOMINANT QUASI-LINEAR EVOLUTION WITH DAMAGING GUSTS BEING GREATEST CONCERN. DEEP SHEAR INCREASES WITH SWD EXTENT FROM UPPER GREAT LAKES INTO PORTIONS WV AND NRN VA...WITH EFFECTIVE SHEAR MAGNITUDES PEAKING AROUND 50 KT OVER LATTER AREAS. MOST PROBABLE AREA FOR UPSCALE ORGANIZATION/GROWTH APPEARS TO BE ON NRN FRINGES OF STRONGER SHEAR BELT...WHERE TSTMS HAVE COALESCED ACROSS PORTIONS SERN OH...NRN WV PANHANDLE AND SWRN PA. ANY SUCH EVOLUTION WOULD DRIVE FORWARD-PROPAGATING MCS EWD TO ESEWD ASTRIDE PA/MD BORDER REGION...EVENTUALLY WITH POTENTIAL TO AFFECT CHESAPEAKE BAY/DE RIVER REGIONS. Link to comment Share on other sites More sharing options...
chubbs Posted June 28, 2013 Share Posted June 28, 2013 Brief rain shower here. Already uncapped. Just depends on whether stronger cells can consolidate. Link to comment Share on other sites More sharing options...
NaoPos Posted June 28, 2013 Share Posted June 28, 2013 wwatch just isued, will post relevant images and disco as it comes in Link to comment Share on other sites More sharing options...
AlexD Posted June 28, 2013 Share Posted June 28, 2013 SEL7 URGENT - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WATCH NUMBER 387 NWS STORM PREDICTION CENTER NORMAN OK 210 PM EDT FRI JUN 28 2013 THE NWS STORM PREDICTION CENTER HAS ISSUED A * SEVERE THUNDERSTORM WATCH FOR PORTIONS OF DISTRICT OF COLUMBIA DELAWARE CENTRAL AND EASTERN MARYLAND CENTRAL AND SOUTHERN NEW JERSEY SOUTHEAST PENNSYLVANIA NORTHEAST VIRGINIA COASTAL WATERS * EFFECTIVE THIS FRIDAY AFTERNOON AND EVENING FROM 210 PM UNTIL 900 PM EDT. * PRIMARY THREATS INCLUDE... SEVERAL DAMAGING WIND GUSTS TO 70 MPH POSSIBLE THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 75 STATUTE MILES EAST AND WEST OF A LINE FROM 40 MILES SOUTH SOUTHEAST OF WASHINGTON DISTRICT OF COLUM TO 15 MILES NORTH OF TRENTON NEW JERSEY. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU7). 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 385...WW 386... DISCUSSION...A FURTHER INCREASE IN TSTM COVERAGE IS ANTICIPATED THIS AFTERNOON ALONG A DEVELOPING LEE TROUGH WERE THE ENVIRONMENT HAS BECOME UNCAPPED WITH MLCAPE APPROACHING 2000 J/KG. CURRENT VAD DATA INDICATE THAT 50 KT WLY WINDS HAVE OVERSPREAD THE REGION AT 6 KM AGL WHICH IS RESULTING IN SUFFICIENT VERTICAL SHEAR FOR SUPERCELLS AND BOWING STRUCTURES CAPABLE OF DAMAGING WINDS AND PERHAPS SOME HAIL. AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM MOTION VECTOR 27030. ...MEAD Link to comment Share on other sites More sharing options...
greg ralls Posted June 28, 2013 Share Posted June 28, 2013 I wonder if this is a record number of consecutive days with watches for Philly? Link to comment Share on other sites More sharing options...
Maximum lawman Posted June 28, 2013 Share Posted June 28, 2013 It's raining in Bryn Mawr. I believe this is the 11th seperate shower in 5 days. Pretty remakable for early summer. Link to comment Share on other sites More sharing options...
Boch23 Posted June 28, 2013 Share Posted June 28, 2013 I wonder if this is a record number of consecutive days with watches for Philly? I remember a time back in 2002 when I graduated from grade school where we had 4 or 5 watches in a weeks time but not consecutive days. Thats about the only time i can remember having a multipe severe risks for a week. Link to comment Share on other sites More sharing options...
iceman56 Posted June 28, 2013 Share Posted June 28, 2013 I wonder if this is a record number of consecutive days with watches for Philly? With little to no severe to show for it - at least where I travel in SE PA. Link to comment Share on other sites More sharing options...
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