Alert archive / New York / Flash Flood Warnings in 2018

Flash Flood Warning 15, NWS Buffalo, NY

August 14, 2018Oswego County, New York

NWS Buffalo, NY issued this flash flood warning at Aug 14, 2018, 3:34 PM EDT for Oswego County, New York. It was in force for 3 hr. 4 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
Aug 14, 2018, 3:34 PM EDT (19:34 UTC)
Expired
Aug 14, 2018, 6:30 PM EDT
In force
3 hr
Issued by
NWS Buffalo, NY
Area
Storm-based polygon
Flood severity
None

County Oswego County, NY

The radar

The Ft Drum radar (KTYX), 43 km from the middle of the area, began a volume at 19:39 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
Aug 14, 4:35 PM EDTFLASH FLOOD1 N Pulaski, NYNORTH STREET FLOODED AND CLOSED
Aug 14, 5:00 PM EDTFLASH FLOODPulaski, NYPULASKI PD REPORTED 4-5 VILLAGE ROADS FLOODED WITH 6-8 INCHES OF WATER ACROSS THEM, NUMEROUS FLOODED BASEMENTS AND WATER UP TO THE DOORS OF MANY BUISNESSES
Aug 14, 5:00 PM EDTHEAVY RAIN 7.1Pulaski, NYRAINFALL BETWEEN 1PM AND 5PM. BASEMENT FLOODED. RELAYED BY COOP OBSERVER.
Aug 14, 5:18 PM EDTFLASH FLOOD1 Ssw Pulaski, NYROUTE 41 FLOODED AND CLOSED NEAR RAILROAD CROSSING

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

The nearest sounding before it

Albany, NY (KALY), launched 12:00Z, 7.6 hours before the alert went out and 212 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, Albany, NY at 12:00Z on 2018-08-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 65 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, Albany, NY at 12:00Z on 2018-08-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 77 square meters per square second.193958Sfc1 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
65 J/kg
Mixed-layer CIN
-77 J/kg
Mixed-layer LCL
614 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
77 m²/s²
0-3 km storm-relative helicity
63 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

054 
WGUS51 KBUF 141934
FFWBUF
NYC075-142230-
/O.NEW.KBUF.FF.W.0015.180814T1934Z-180814T2230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Buffalo NY
334 PM EDT TUE AUG 14 2018

The National Weather Service in Buffalo has issued a

* Flash Flood Warning for...
  North central Oswego County in central New York...

* Until 630 PM EDT.

* At 332 PM EDT, Doppler radar indicated thunderstorms producing
  heavy rain across the warned area. Up to two inches of rain have 
  already fallen. Flash flooding is expected to begin shortly. Watch 
  for sudden rises on the Salmon River between Pulaski and Lake 
  Ontario.

* Some locations that will experience flooding include...
  Pulaski, Selkirk Shores State Park and Port Ontario. 

Additional rainfall amounts of about an inch are possible in the 
warned area.

This includes Interstate 81 between exits 35 and 36.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Flooding is occurring or is imminent. It is important to know where
you are relative to streams, rivers, or creeks which can become
killers in heavy rains. Campers and hikers should avoid streams or
creeks.

&&

LAT...LON 4363 7609 4357 7611 4349 7612 4353 7626
      4362 7622

$$

Church
2 follow-up statements
352 
WGUS71 KBUF 142131
FFSBUF

Flash Flood Statement
National Weather Service Buffalo NY
531 PM EDT TUE AUG 14 2018

NYC075-142230-
/O.CON.KBUF.FF.W.0015.000000T0000Z-180814T2230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Oswego NY-
531 PM EDT TUE AUG 14 2018

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 630 PM EDT FOR
NORTH CENTRAL OSWEGO COUNTY...

At 530 PM EDT, local law enforcement reported flash flooding is 
occurring in the Pulaski area and spotters have reported up to 7 
inches of rainfall in Pulaski since 1pm this afternoon. Flash 
flooding is occurring.

Some locations that will experience flooding include...
Pulaski, Selkirk Shores State Park and Port Ontario. 

This includes Interstate 81 between exits 35 and 36.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Please report flooding to your local law enforcement agency when you
can do so safely.

&&

LAT...LON 4363 7609 4357 7611 4349 7612 4353 7626
      4362 7622

$$

Church
205 
WGUS71 KBUF 142225
FFSBUF

Flash Flood Statement
National Weather Service Buffalo NY
625 PM EDT TUE AUG 14 2018

NYC075-142230-
/O.EXP.KBUF.FF.W.0015.000000T0000Z-180814T2230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Oswego NY-
625 PM EDT TUE AUG 14 2018

...THE FLASH FLOOD WARNING FOR NORTH CENTRAL OSWEGO COUNTY WILL
EXPIRE AT 630 PM EDT...

The heavy rain has ended. Flood waters will continue to recede this 
evening. Flooding is no longer expected to pose a threat. Please 
continue to heed any remaining road closures.

LAT...LON 4363 7609 4357 7611 4349 7612 4353 7626
      4362 7622

$$

Church

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 14, 5:24 AM EDTSpecial Weather StatementBUFCayuga51 min
Aug 14, 6:20 AM EDTSpecial Weather StatementBUFWayne55 min
Aug 14, 7:21 AM EDTSpecial Weather StatementBUFOntario, Wayne54 min
Aug 14, 8:17 AM EDTSpecial Weather StatementBUFWayne58 min
Aug 14, 8:41 AM EDTSpecial Weather StatementBUFOswego64 min
Aug 14, 9:21 AM EDTFlash Flood WarningBUFMonroe, Ontario, Wayne5 hr
Aug 14, 1:45 PM EDTAreal Flood WarningBUFMonroe20 hr
Aug 14, 3:12 PM EDTSpecial Weather StatementBUFOswego63 min
Aug 14, 4:17 PM EDTFlash Flood WarningBUFJefferson, Oswego3 hr
Aug 14, 4:53 PM EDTSpecial Weather StatementBUFLewis37 min
Aug 14, 5:27 PM EDTSpecial Weather StatementBUFJefferson, Lewis48 min

Nearby

Flash Flood Warnings in New York, 2018Every flash flood warning in 2018

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.