wdrag Posted August 27, 2021 Share Posted August 27, 2021 Since PHI issued their FF Watch yesterday afternoon, guidance is still vulnerable to 2" one hours rains, have opened a thread for commented event info. My thinking is heaviest will occur in the interior of NJ; but NYC nor sw CT, extreme se NYS are not out of the potential. My guess is that if the region north of I78 is to FF, it will probably have occurred by 9AM Saturday with two possible bands, one late this afternoon-eve, and another near dawn Saturday. How much of this heavy convection drifts over into NYC is questionable but t's not impossible to see 1-2" in parts of the 5 boroughs. Maybe the most favored areas are near I78 and possibly the hilly areas of far northern NJ. In any case, convection could impact the evening commute and wet microburst severe wind is not out of the question late today. 2 Link to comment Share on other sites More sharing options...
donsutherland1 Posted August 27, 2021 Share Posted August 27, 2021 Flood Watch National Weather Service New York NY 1151 AM EDT Fri Aug 27 2021 NYZ069-071>075-176-178-280500- /O.EXA.KOKX.FF.A.0007.210827T1800Z-210829T0600Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Rockland-Southern Westchester-New York (Manhattan)-Bronx- Richmond (Staten Island)-Kings (Brooklyn)-Northern Queens- Southern Queens- 1151 AM EDT Fri Aug 27 2021 ...FLASH FLOOD WATCH IN EFFECT THROUGH LATE SATURDAY NIGHT... The National Weather Service in Upton has expanded the * Flash Flood Watch to include a portion of southeast New York, including the following areas, Bronx, Kings (Brooklyn), New York (Manhattan), Northern Queens, Richmond (Staten Island), Rockland, Southern Queens, and Southern Westchester. * Through late Saturday night * A moist environment could result in heavy rain producing thunderstorms this afternoon into Saturday night. With recent heavy rainfall, it will not take much additional rain to result in flash flooding. The greatest risk looks to be this afternoon through Saturday afternoon. * Rainfall rates of 1 to 2 inches per hour could result in flash flooding, especially in low-lying and poor drainage areas such as highway underpasses. PRECAUTIONARY/PREPAREDNESS ACTIONS... You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && 3 Link to comment Share on other sites More sharing options...
bluewave Posted August 27, 2021 Share Posted August 27, 2021 The HREF has been doing a great job this summer with the heavy rainfall and flash flooding signals. But the locations of the heaviest amounts have been off at times. So we may have to wait until nowcast time to know which areas will see the highest totals with this next event. 1 Link to comment Share on other sites More sharing options...
SI Mailman Posted August 27, 2021 Share Posted August 27, 2021 Line popping up right now just southeast of Scranton/Wilkes-Barre 1 Link to comment Share on other sites More sharing options...
rclab Posted August 27, 2021 Share Posted August 27, 2021 Hearing rumbles of thunder. As always …. 1 Link to comment Share on other sites More sharing options...
LibertyBell Posted August 27, 2021 Share Posted August 27, 2021 23 minutes ago, rclab said: Hearing rumbles of thunder. As always …. This couldn't wait until nightfall? Messed up my hottest day of the year dammit Link to comment Share on other sites More sharing options...
LongBeachSurfFreak Posted August 27, 2021 Share Posted August 27, 2021 Full on monsoon currently on the uws. Here we go again with flash flooding! 2 Link to comment Share on other sites More sharing options...
Nibor Posted August 27, 2021 Share Posted August 27, 2021 Crazy lightning and thunder here. 2 Link to comment Share on other sites More sharing options...
LibertyBell Posted August 27, 2021 Share Posted August 27, 2021 6 minutes ago, LongBeachSurfFreak said: Full on monsoon currently on the uws. Here we go again with flash flooding! Think NYC gets over 10" with this one? 1 Link to comment Share on other sites More sharing options...
rclab Posted August 27, 2021 Share Posted August 27, 2021 1 hour ago, LibertyBell said: This couldn't wait until nightfall? Messed up my hottest day of the year dammit Good evening, Liberty. I’d do the Gene Kelly bit but Im not ready for my 15 minutes and an obit. As always …. 1 Link to comment Share on other sites More sharing options...
nycwinter Posted August 27, 2021 Share Posted August 27, 2021 7 minutes ago, LibertyBell said: Think NYC gets over 10" with this one? i said a few days ago it was 100% a guarantee the city gets over 10 inches.. 1 Link to comment Share on other sites More sharing options...
SI Mailman Posted August 27, 2021 Share Posted August 27, 2021 absolute epic storm here on Staten Island. Lots of thunder and lightning with torrential rains. Did 25 MPH on the Korean driving through it. 1 Link to comment Share on other sites More sharing options...
SI Mailman Posted August 27, 2021 Share Posted August 27, 2021 lots of ponding on the roadways here from the deluge. Link to comment Share on other sites More sharing options...
uncle W Posted August 27, 2021 Share Posted August 27, 2021 just had the best storm of the year...I figured these high dews would pay off...still pouring... 2 Link to comment Share on other sites More sharing options...
SI Mailman Posted August 27, 2021 Share Posted August 27, 2021 just had the best storm of the year...I figured these high dews would pay off...still pouring...Still going here as well. I haven't gotten out of my car yet 2 Link to comment Share on other sites More sharing options...
LibertyBell Posted August 27, 2021 Share Posted August 27, 2021 7 minutes ago, uncle W said: just had the best storm of the year...I figured these high dews would pay off...still pouring... why haven't they made it here- what's stopping it? Link to comment Share on other sites More sharing options...
uncle W Posted August 27, 2021 Share Posted August 27, 2021 still raining...looks like 2-3" in the bucket... 1 Link to comment Share on other sites More sharing options...
uncle W Posted August 27, 2021 Share Posted August 27, 2021 I might have 3" in less than an hour...still raining... 1 Link to comment Share on other sites More sharing options...
LibertyBell Posted August 27, 2021 Share Posted August 27, 2021 2 minutes ago, uncle W said: I might have 3" in less than an hour...still raining... Yeah thats why I find NYC rainfall records suspect, there are probably singular locations like yours that have seen a lot more. Link to comment Share on other sites More sharing options...
doncat Posted August 27, 2021 Share Posted August 27, 2021 24 minutes ago, uncle W said: I might have 3" in less than an hour...still raining... Wow...had nothing measurable in Travis from that earlier storm. 1.02" in Castleton Corners. 1 Link to comment Share on other sites More sharing options...
doncat Posted August 27, 2021 Share Posted August 27, 2021 24 minutes ago, LibertyBell said: Yeah thats why I find NYC rainfall records suspect, there are probably singular locations like yours that have seen a lot more. Of course...rainfall can vary greatly. Everyone with an interest should have a raingage if space is available. 2 1 Link to comment Share on other sites More sharing options...
uncle W Posted August 27, 2021 Share Posted August 27, 2021 8 minutes ago, doncat said: Wow...had nothing measurable in Travis from that earlier storm. 1.02" in Castleton Corners. 2.55" in a little over a half hour...still raining lightly... 2 Link to comment Share on other sites More sharing options...
uncle W Posted August 27, 2021 Share Posted August 27, 2021 Central Park went over 10" for the month... 1 Link to comment Share on other sites More sharing options...
LibertyBell Posted August 27, 2021 Share Posted August 27, 2021 1 hour ago, doncat said: Of course...rainfall can vary greatly. Everyone with an interest should have a raingage if space is available. I got my digital one set up just in time for October 2005.....unfortunately they are hard to maintain and always seem to break down on me I should go back to the old fashioned glass cylinder one I used to have. That one was either stolen or accidentally dumped into the trash lol. Link to comment Share on other sites More sharing options...
IrishRob17 Posted August 28, 2021 Share Posted August 28, 2021 31 minutes ago, LibertyBell said: I got my digital one set up just in time for October 2005.....unfortunately they are hard to maintain and always seem to break down on me I should go back to the old fashioned glass cylinder one I used to have. That one was either stolen or accidentally dumped into the trash lol. 1 Link to comment Share on other sites More sharing options...
uncle W Posted August 28, 2021 Share Posted August 28, 2021 5 minutes ago, IrishRob17 said: mine is so old the plastic turned yellowish... 2 Link to comment Share on other sites More sharing options...
doncat Posted August 28, 2021 Share Posted August 28, 2021 25 minutes ago, IrishRob17 said: Yeah Rob...I mean rain gages are very inexpensive...even a cheap tipping bucket will get the job done. 2 Link to comment Share on other sites More sharing options...
IrishRob17 Posted August 28, 2021 Share Posted August 28, 2021 6 minutes ago, doncat said: Yeah Rob...I mean rain gages are very inexpensive...even a cheap tipping bucket will get the job done. Agreed, there are much cheaper ones than this out there that do a reasonable job. Link to comment Share on other sites More sharing options...
Rtd208 Posted August 28, 2021 Share Posted August 28, 2021 The potential for heavy rain and storms overnight will depend on how much the atmosphere was overturned by the activity during the afternoon/early evening. Link to comment Share on other sites More sharing options...
LibertyBell Posted August 28, 2021 Share Posted August 28, 2021 2 hours ago, IrishRob17 said: My favorite kind! That is what I used to have when I was in middle school. Link to comment Share on other sites More sharing options...
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