Alert archive / New York / Flash Flood Warnings in 2021

Flash Flood Warning 1, NWS New York, NY

June 8, 2021Orange County, New York

NWS New York, NY issued this flash flood warning at Jun 8, 2021, 1:07 PM EDT for Orange County, New York. It was in force for 3 hr. 2 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Jun 8, 2021, 1:07 PM EDT (17:07 UTC)
Expired
Jun 8, 2021, 4:15 PM EDT
In force
3 hr
Issued by
NWS New York, NY
Area
Storm-based polygon
Flood severity
None

County Orange County, NY

The radar

The Albany radar (KENX), 141 km from the middle of the area, began a volume at 17:07 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.

What was reported inside it

TimeReportWhereRemark
Jun 8, 1:57 PM EDTFLASH FLOOD1 Wsw Chester, NYFLOODED BASEMENT REPORTED AT 19 CONKLINGTOWN ROAD WITH RADAR ESTIMATED RAINFALL GREATER THAN 3 INCHES IN A ONE HOUR PERIOD.
Jun 8, 2:30 PM EDTFLASH FLOODChester, NYFLOODED BASEMENT REPORTED AT 2 MOFFATT LANE WITH RADAR ESTIMATED RAINFALL GREATER THAN 3 INCHES IN A ONE HOUR PERIOD.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 5.1 hours before the alert went out and 152 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.

Skew-T log-pSkew-T log-p diagram, Brookhaven, NY at 12:00Z on 2021-06-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 740 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Brookhaven, NY at 12:00Z on 2021-06-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 14 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
740 J/kg
Mixed-layer CIN
-106 J/kg
Mixed-layer LCL
1004 m above ground
0-6 km bulk shear
10 kt
0-1 km storm-relative helicity
14 m²/s²
0-3 km storm-relative helicity
9 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

763 
WGUS51 KOKX 081707
FFWOKX
NYC071-082015-
/O.NEW.KOKX.FF.W.0001.210608T1707Z-210608T2015Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Upton NY
107 PM EDT Tue Jun 8 2021

The National Weather Service in Upton has issued a

* Flash Flood Warning for...
  Central Orange County in southeastern New York...

* Until 415 PM EDT.

* At 107 PM EDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Flash flooding is ongoing or 
  expected to begin shortly.

  HAZARD...Flash flooding caused by thunderstorms.

  SOURCE...Doppler radar.

  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 flash flooding include...
  Middletown, Port Jervis, Warwick, Goshen, Chester, Florida, 
  Cuddebackville, Otisville, Huguenot, Unionville, Deerpark, 
  Mechanicstown, Washingtonville, Westtown, Slate Hill, Pine Island 
  and New Hampton.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

&&

LAT...LON 4137 7470 4149 7467 4144 7415 4120 7436
      4136 7469

FLASH FLOOD...RADAR INDICATED

$$

JC
1 follow-up statement
367 
WGUS71 KOKX 082007
FFSOKX

Flash Flood Statement
National Weather Service Upton NY
407 PM EDT Tue Jun 8 2021

NYC071-082017-
/O.EXP.KOKX.FF.W.0001.000000T0000Z-210608T2015Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Orange NY-
407 PM EDT Tue Jun 8 2021

...FLASH FLOOD WARNING WILL EXPIRE AT 415 PM EDT THIS AFTERNOON FOR 
CENTRAL ORANGE COUNTY...

Flooding is no longer expected to pose a threat. Please continue to 
heed remaining road closures.

LAT...LON 4137 7470 4149 7467 4144 7415 4120 7436
      4136 7469

$$

JC

The office that day

Everything else NWS New York, NY issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 8, 12:04 AM EDTMarine Dense Fog AdvisoryOKX9 hr
Jun 8, 12:24 PM EDTAreal Flood AdvisoryOKXOrange3 hr
Jun 8, 12:49 PM EDTSpecial Weather StatementOKXOrange41 min
Jun 8, 1:28 PM EDTSevere Thunderstorm WarningOKXOrange62 min
Jun 8, 2:02 PM EDTAreal Flood AdvisoryOKXOrange118 min
Jun 8, 2:07 PM EDTSevere Thunderstorm WarningOKXPutnam, Westchester38 min
Jun 8, 2:26 PM EDTSpecial Weather StatementOKXPutnam, Rockland, Westchester49 min
Jun 8, 2:40 PM EDTSevere Thunderstorm WarningOKXRockland, Westchester35 min
Jun 8, 3:06 PM EDTAreal Flood AdvisoryOKXRockland, Westchester114 min
Jun 8, 3:10 PM EDTSevere Thunderstorm WarningOKXBronx, Rockland, Westchester50 min
Jun 8, 3:28 PM EDTSpecial Marine WarningOKX62 min
Jun 8, 3:29 PM EDTSevere Thunderstorm WarningOKXBronx, Kings, New York, Queens, Richmond46 min
Jun 8, 3:30 PM EDTFlash Flood WarningOKXRockland, Westchester3 hr
Jun 8, 3:49 PM EDTFlash Flood WarningOKXBronx, Kings, New York, Queens, Richmond2 hr
Jun 8, 4:10 PM EDTSpecial Marine WarningOKX43 min
Jun 8, 4:15 PM EDTSevere Thunderstorm WarningOKXBronx, Kings, Nassau, New York, Queens, Richmond43 min
Jun 8, 4:30 PM EDTSpecial Marine WarningOKX45 min
Jun 8, 4:31 PM EDTFlash Flood WarningOKXNassau, Queens56 min

Nearby

Flash Flood Warnings in New York, 2021Every flash flood warning in 2021

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.