Alert archive / New York / Flash Flood Warnings in 2020
Flash Flood Warning 13, NWS New York, NY
NWS New York, NY issued this flash flood warning at Jul 8, 2020, 3:00 PM EDT for Greater Bridgeport Planning Region, Connecticut; Orange County, Rockland County, Westchester County, New York; Bergen County, Passaic County, New Jersey. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jul 8, 2020, 3:00 PM EDT (19:00 UTC)
- Expired
- Jul 8, 2020, 5:48 PM EDT
- In force
- 3 hr
- Issued by
- NWS New York, NY
- Area
- Storm-based polygon
- Flood severity
- None
Counties Greater Bridgeport Planning Region, CT, Bergen County, NJ, Passaic County, NJ, Orange County, NY, Rockland County, NY, Westchester County, NY
The radar
The Brookhaven radar (KOKX), 107 km from the middle of the area, began a volume at 19:00 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Brookhaven, NY (KOKX), launched 12:00Z, 7.0 hours before the alert went out and 107 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 247 J/kg
- Mixed-layer CIN
- -39 J/kg
- Mixed-layer LCL
- 763 m above ground
- 0-6 km bulk shear
- 10 kt
- 0-1 km storm-relative helicity
- 19 m²/s²
- 0-3 km storm-relative helicity
- 72 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
561
WGUS51 KOKX 081900
FFWOKX
CTC001-NJC003-031-NYC071-087-119-082200-
/O.NEW.KOKX.FF.W.0013.200708T1900Z-200708T2200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service New York NY
300 PM EDT Wed Jul 8 2020
The National Weather Service in Upton NY has issued a
* Flash Flood Warning for...
Southern Fairfield County in southern Connecticut...
Passaic County in northeastern New Jersey...
Bergen County in northeastern New Jersey...
Westchester County in southeastern New York...
Southeastern Orange County in southeastern New York...
Rockland County in southeastern New York...
* Until 600 PM EDT.
* At 300 PM EDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Up to one inch of rain has
already fallen. Flash flooding is ongoing or expected to begin
shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar indicated.
IMPACT...Flooding of small creeks and streams, urban areas,
highways, streets and underpasses as well as other
drainage and low lying areas.
* Some locations that will experience flooding include...
Yonkers, Stamford, Norwalk, New Rochelle, White Plains, Port
Chester, Paramus, West Milford, Ossining, Ridgewood, New Canaan,
Rye, Ramsey, Ringwood and Haverstraw.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Excessive runoff from heavy rainfall will cause flooding of small
creeks and streams, country roads, farmland, and other low lying
spots.
&&
LAT...LON 4122 7348 4110 7345 4099 7354 4099 7356
4100 7359 4092 7371 4095 7428 4096 7428
4100 7430 4101 7439 4103 7442 4102 7443
4104 7443 4105 7445 4104 7450 4107 7449
4109 7450 4120 7437 4128 7452
FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL...1-2 INCHES IN 1 HOUR
$$
NV1 follow-up statement
008
WGUS71 KOKX 082148
FFSOKX
Flash Flood Statement
National Weather Service New York NY
548 PM EDT Wed Jul 8 2020
CTC001-NJC003-031-NYC071-087-119-082158-
/O.CAN.KOKX.FF.W.0013.000000T0000Z-200708T2200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Fairfield CT-Passaic NJ-Bergen NJ-Westchester NY-Orange NY-
Rockland NY-
548 PM EDT Wed Jul 8 2020
...THE FLASH FLOOD WARNING FOR SOUTHERN FAIRFIELD...PASSAIC...
BERGEN...WESTCHESTER...SOUTHEASTERN ORANGE AND ROCKLAND COUNTIES IS
CANCELLED...
The heavy rain has ended. Flooding is no longer expected to pose a
threat. Please continue to heed any remaining road closures.
Report road closures, deep standing water, overflowing streams or
creeks, stranded cars, and flooded property to your nearest law
enforcement agency. They will relay your report to the National
Weather Service Upton NY.
LAT...LON 4122 7348 4110 7345 4099 7354 4099 7356
4100 7359 4092 7371 4095 7428 4096 7428
4100 7430 4101 7439 4103 7442 4102 7443
4104 7443 4105 7445 4104 7450 4107 7449
4109 7450 4120 7437 4128 7452
$$
NVThe office that day
Everything else NWS New York, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 8, 1:43 PM EDT | Areal Flood Advisory | OKX | Greater Bridgeport Planning Region, Naugatuck Valley Planning Region | 3 hr |
| Jul 8, 2:29 PM EDT | Special Weather Statement | OKX | 61 min | |
| Jul 8, 3:36 PM EDT | Special Weather Statement | OKX | 39 min | |
| Jul 8, 5:24 AM EDT | Heat Advisory | OKX | Bronx, Kings, New York, Queens, Richmond | 35 hr |
| Jul 8, 12:37 PM EDT | Areal Flood Advisory | OKX | Orange, Putnam | 3 hr |
| Jul 8, 1:13 PM EDT | Flash Flood Warning | OKX | Orange, Putnam | 3 hr |
| Jul 8, 1:39 PM EDT | Flash Flood Warning | OKX | Orange | 2 hr |
| Jul 8, 2:15 PM EDT | Areal Flood Advisory | OKX | Orange, Rockland, Westchester | 3 hr |
| Jul 8, 2:27 PM EDT | Special Weather Statement | OKX | Rockland, Westchester | 63 min |
| Jul 8, 3:23 PM EDT | Special Weather Statement | OKX | Westchester | 67 min |
| Jul 8, 3:24 PM EDT | Areal Flood Advisory | OKX | Richmond | 2 hr |
| Jul 8, 4:37 PM EDT | Special Weather Statement | OKX | Bronx, New York | 38 min |
| Jul 8, 4:53 PM EDT | Special Weather Statement | OKX | Richmond | 67 min |
| Jul 8, 3:30 PM EDT | Special Weather Statement | OKX | Hudson, Union | 45 min |
Nearby
Flash Flood Warnings in New York, 2020Flash Flood Warnings in New Jersey, 2020Flash Flood Warnings in Connecticut, 2020Every flash flood warning in 2020
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.