Alert archive / New York / Flash Flood Warnings in 2015

Flash Flood Warning 7, NWS Buffalo, NY

June 5, 2015Ontario County, New York

NWS Buffalo, NY issued this flash flood warning at Jun 5, 2015, 9:15 PM EDT for Ontario County, New York. 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
Jun 5, 2015, 9:15 PM EDT (01:15 UTC)
Expired
Jun 6, 2015, 12:15 AM EDT
In force
3 hr
Issued by
NWS Buffalo, NY
Area
Storm-based polygon
Flood severity
None

County Ontario County, NY

The radar

The Buffalo radar (KBUF), 114 km from the middle of the area, began a volume at 01:16 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

Buffalo Intl Airport, NY (KBUF), launched 00:00Z, 1.3 hours before the alert went out and 111 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, Buffalo Intl Airport, NY at 00:00Z on 2015-06-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 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, Buffalo Intl Airport, NY at 00:00Z on 2015-06-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 14 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1158 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
14 m²/s²
0-3 km storm-relative helicity
17 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

861 
WGUS51 KBUF 060115
FFWBUF
NYC069-060415-
/O.NEW.KBUF.FF.W.0007.150606T0115Z-150606T0415Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
915 PM EDT FRI JUN 5 2015

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  ONTARIO COUNTY IN WESTERN NEW YORK...

* UNTIL 1215 AM EDT
    
* AT 913 PM EDT...LOCAL LAW ENFORCEMENT REPORTED THUNDERSTORMS 
  PRODUCING HEAVY RAIN ACROSS THE WARNED AREA. UP TO THREE INCHES OF 
  RAIN HAS ALREADY FALLEN WITH AN ADDITIONAL INCH POSSIBLE. FLASH 
  FLOODING IS ALREADY OCCURRING IN SOME AREAS.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE... 
  GENEVA...CANANDAIGUA...VICTOR...HOPEWELL...BRISTOL...CLIFTON 
  SPRINGS... PHELPS...BLOOMFIELD AND HONEOYE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOVE TO HIGHER GROUND NOW. ACT QUICKLY TO PROTECT YOUR LIFE.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING.

&&

LAT...LON 4294 7749 4295 7748 4303 7746 4300 7698
      4277 7697 4276 7731 4275 7732 4274 7757

$$

TMA
2 follow-up statements
044 
WGUS71 KBUF 060302
FFSBUF

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
1102 PM EDT FRI JUN 5 2015

NYC069-060415-
/O.CON.KBUF.FF.W.0007.000000T0000Z-150606T0415Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
ONTARIO NY-
1102 PM EDT FRI JUN 5 2015

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1215 AM EDT FOR
ONTARIO COUNTY...

AT 1056 PM EDT...THE NATIONAL WEATHER SERVICE DOPPLER RADAR HAS 
INDICATED RECENT HEAVY RAIN FROM A THUNDERSTORM OVER THE WARNED 
AREA. THOUGH THE HEAVY RAIN HAS ENDED..AND ONLY A FEW TRAILING 
SHOWERS LINGER OVER THE WARNED AREA...THE POTENTIAL FOR FLASH 
FLOODING FROM RUNOFF WILL CONTINUE THIS EVENING. 

SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
GENEVA...CANANDAIGUA...VICTOR...BRISTOL...CLIFTON SPRINGS...PHELPS...
BLOOMFIELD AND HONEOYE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING.

&&

LAT...LON 4294 7749 4295 7748 4303 7746 4300 7698
      4277 7697 4276 7731 4275 7732 4274 7757

$$

THOMAS
304 
WGUS71 KBUF 060402
FFSBUF

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
1202 AM EDT SAT JUN 6 2015

NYC069-060411-
/O.CAN.KBUF.FF.W.0007.000000T0000Z-150606T0415Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
ONTARIO NY-
1202 AM EDT SAT JUN 6 2015

...THE FLASH FLOOD WARNING FOR ONTARIO COUNTY IS CANCELLED...

FLOOD WATERS HAVE RECEDED...AND ARE NO LONGER EXPECTED TO POSE A
THREAT TO LIFE OR PROPERTY. PLEASE CONTINUE TO HEED ANY ROAD
CLOSURES.

LAT...LON 4294 7749 4295 7748 4303 7746 4300 7698
      4277 7697 4276 7731 4275 7732 4274 7757

$$

THOMAS

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 5, 8:33 PM EDTSpecial Weather StatementBUFOntario42 min

Nearby

Flash Flood Warnings in New York, 2015Every flash flood warning in 2015

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.