Alert archive / New York / Flash Flood Watches in 2015

Flash Flood Watch 3, NWS Buffalo, NY

June 15, 201513 counties in New York

NWS Buffalo, NY issued this flash flood watch at Jun 15, 2015, 2:57 PM EDT for 13 counties in New York. It took effect at Jun 15, 2015, 10:00 PM EDT. It was in force for 6 hr.

The area

The counties it named.

The facts

Issued
Jun 15, 2015, 2:57 PM EDT (18:57 UTC)
In effect from
Jun 15, 2015, 10:00 PM EDT
Expired
Jun 16, 2015, 4:02 AM EDT
In force
6 hr
Issued by
NWS Buffalo, NY
Flood severity
None

Counties Allegany County, NY, Cattaraugus County, NY, Cayuga County, NY, Chautauqua County, NY, Erie County, NY, Genesee County, NY, Livingston County, NY, Monroe County, NY, Niagara County, NY, Ontario County, NY, Orleans County, NY, Wayne County, NY, Wyoming County, NY

The radar

The Buffalo radar (KBUF), 59 km from the middle of the area, began a volume at 18:59 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 12:00Z, 7.0 hours before the alert went out and 56 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 12:00Z on 2015-06-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 12:00Z on 2015-06-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 63 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
610 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
63 m²/s²
0-3 km storm-relative helicity
66 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.

997 
WGUS61 KBUF 151857
FFABUF

URGENT - IMMEDIATE BROADCAST REQUESTED
FLOOD WATCH
NATIONAL WEATHER SERVICE BUFFALO NY
257 PM EDT MON JUN 15 2015


NYZ001>005-010>014-019>021-085-160300-
/O.NEW.KBUF.FF.A.0003.150616T0200Z-150616T1600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
NIAGARA-ORLEANS-MONROE-WAYNE-NORTHERN CAYUGA-NORTHERN ERIE-
GENESEE-WYOMING-LIVINGSTON-ONTARIO-CHAUTAUQUA-CATTARAUGUS-
ALLEGANY-SOUTHERN ERIE-
INCLUDING THE CITIES OF...NIAGARA FALLS...MEDINA...ROCHESTER...
NEWARK...FAIR HAVEN...BUFFALO...BATAVIA...WARSAW...GENESEO...
CANANDAIGUA...JAMESTOWN...OLEAN...WELLSVILLE...ORCHARD PARK...
SPRINGVILLE
257 PM EDT MON JUN 15 2015

...FLASH FLOOD WATCH IN EFFECT FROM 10 PM EDT THIS EVENING
THROUGH TUESDAY MORNING...

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

* FLASH FLOOD WATCH FOR PORTIONS OF CENTRAL AND WESTERN NEW 
  YORK...INCLUDING THE FOLLOWING COUNTIES...IN CENTRAL NEW 
  YORK...NORTHERN CAYUGA. IN WESTERN NEW YORK...ALLEGANY... 
  CATTARAUGUS...CHAUTAUQUA...GENESEE...LIVINGSTON...MONROE... 
  NIAGARA...NORTHERN ERIE...ONTARIO...ORLEANS...SOUTHERN ERIE... 
  WAYNE AND WYOMING. 

* FROM 10 PM EDT THIS EVENING THROUGH TUESDAY MORNING.

* SHOWERS AND THUNDERSTORMS WILL BE MOVING THROUGH THE REGION
  OVERNIGHT INTO EARLY TUESDAY. RECENT SIGNIFICANT RAINFALL HAS
  RESULTED IN MANY AREAS WITH SATURATED GROUND AND STREAMS RUNNING
  HIGH. ANY THUNDERSTORM OVERNIGHT INTO EARLY TUESDAY WILL HAVE
  THE POTENTIAL TO PRODUCE VERY HEAVY RAINFALL IN A SHORT PERIOD
  OF TIME. THIS MAY LEAD TO FLASH FLOODING. THE GREATEST POTENTIAL
  FOR FLASH FLOODING IS ACROSS THE FINGER LAKES...GENESEE
  VALLEY...AND SOUTHERN TIER.  

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLASH FLOOD WATCH MEANS THE THREAT OF FLASH FLOODING EXISTS
ALONG RIVERS AND CREEKS. IF YOU ARE IN THE WATCH AREA YOU SHOULD
MONITOR WEATHER CONDITIONS CLOSELY. BE READY TO MOVE TO HIGHER
GROUND IF FLOODING IS OBSERVED OR A WARNING IS ISSUED. STAY TUNED
TO WEATHER RADIO OR OTHER RADIO AND TV STATIONS FOR FURTHER
UPDATES.

&&

$$
2 follow-up statements
186 
WGUS61 KBUF 160238
FFABUF

FLOOD WATCH
NATIONAL WEATHER SERVICE BUFFALO NY
1038 PM EDT MON JUN 15 2015

NYZ001>005-010>014-019>021-085-161045-
/O.CON.KBUF.FF.A.0003.000000T0000Z-150616T1600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
NIAGARA-ORLEANS-MONROE-WAYNE-NORTHERN CAYUGA-NORTHERN ERIE-
GENESEE-WYOMING-LIVINGSTON-ONTARIO-CHAUTAUQUA-CATTARAUGUS-
ALLEGANY-SOUTHERN ERIE-
INCLUDING THE CITIES OF...NIAGARA FALLS...MEDINA...ROCHESTER...
NEWARK...FAIR HAVEN...BUFFALO...BATAVIA...WARSAW...GENESEO...
CANANDAIGUA...JAMESTOWN...OLEAN...WELLSVILLE...ORCHARD PARK...
SPRINGVILLE
1038 PM EDT MON JUN 15 2015

...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH TUESDAY MORNING...

THE FLASH FLOOD WATCH CONTINUES FOR

* PORTIONS OF CENTRAL AND WESTERN NEW YORK...INCLUDING THE 
  FOLLOWING COUNTIES...IN CENTRAL NEW YORK...NORTHERN CAYUGA. IN 
  WESTERN NEW YORK...ALLEGANY...CATTARAUGUS...CHAUTAUQUA... 
  GENESEE...LIVINGSTON...MONROE...NIAGARA...NORTHERN ERIE... 
  ONTARIO...ORLEANS...SOUTHERN ERIE...WAYNE AND WYOMING. 

* THROUGH TUESDAY MORNING.

* SHOWERS AND THUNDERSTORMS WILL BE MOVING THROUGH THE REGION
  OVERNIGHT INTO EARLY TUESDAY. RECENT SIGNIFICANT RAINFALL HAS
  RESULTED IN MANY AREAS WITH SATURATED GROUND AND STREAMS RUNNING
  HIGH. ANY THUNDERSTORM OVERNIGHT INTO EARLY TUESDAY WILL HAVE
  THE POTENTIAL TO PRODUCE VERY HEAVY RAINFALL IN A SHORT PERIOD
  OF TIME. THIS MAY LEAD TO FLASH FLOODING. THE GREATEST POTENTIAL
  FOR FLASH FLOODING IS ACROSS THE FINGER LAKES...GENESEE
  VALLEY...AND SOUTHERN TIER. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLASH FLOOD WATCH MEANS THE THREAT OF FLASH FLOODING EXISTS
ALONG RIVERS AND CREEKS. IF YOU ARE IN THE WATCH AREA YOU SHOULD
MONITOR WEATHER CONDITIONS CLOSELY. BE READY TO MOVE TO HIGHER
GROUND IF FLOODING IS OBSERVED OR A WARNING IS ISSUED. STAY TUNED
TO WEATHER RADIO OR OTHER RADIO AND TV STATIONS FOR FURTHER
UPDATES.

&&

$$

CHURCH
734 
WGUS61 KBUF 160802
FFABUF

FLOOD WATCH
NATIONAL WEATHER SERVICE BUFFALO NY
402 AM EDT TUE JUN 16 2015

...FLASH FLOOD WATCH IS CANCELLED...

NYZ001>005-010>014-019>021-085-160915-
/O.CAN.KBUF.FF.A.0003.000000T0000Z-150616T1600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
NIAGARA-ORLEANS-MONROE-WAYNE-NORTHERN CAYUGA-NORTHERN ERIE-
GENESEE-WYOMING-LIVINGSTON-ONTARIO-CHAUTAUQUA-CATTARAUGUS-
ALLEGANY-SOUTHERN ERIE-
INCLUDING THE CITIES OF...NIAGARA FALLS...MEDINA...ROCHESTER...
NEWARK...FAIR HAVEN...BUFFALO...BATAVIA...WARSAW...GENESEO...
CANANDAIGUA...JAMESTOWN...OLEAN...WELLSVILLE...ORCHARD PARK...
SPRINGVILLE
402 AM EDT TUE JUN 16 2015

...FLASH FLOOD WATCH IS CANCELLED...

THE FLASH FLOOD WATCH FOR PORTIONS OF CENTRAL AND WESTERN NEW
YORK HAS BEEN CANCELLED. HEAVY RAIN THAT WAS EXPECTED TO MOVE
ACROSS WESTERN NEW YORK HAS FAILED TO DEVELOP.

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 14, 8:34 PM EDTFlash Flood WarningBUFLivingston, Ontario3 hr

Nearby

Flash Flood Watches in New York, 2015Every flash flood watch 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.