Alert archive / New York / Flood Watches in 2017

Flood Watch 5, NWS Buffalo, NY

May 1, 201716 counties in New York

NWS Buffalo, NY issued this flood watch at May 1, 2017, 6:16 AM EDT for 16 counties in New York. It took effect at May 1, 2017, 2:00 PM EDT. It was in force for 6 hr.

The area

The counties it named.

The facts

Issued
May 1, 2017, 6:16 AM EDT (10:16 UTC)
In effect from
May 1, 2017, 2:00 PM EDT
Expired
May 1, 2017, 7:39 PM 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, Jefferson County, NY, Lewis County, NY, Livingston County, NY, Monroe County, NY, Niagara County, NY, Ontario County, NY, Orleans County, NY, Oswego County, NY, Wayne County, NY, Wyoming County, NY

The radar

The Buffalo radar (KBUF), 90 km from the middle of the area, began a volume at 10:18 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, 10.3 hours before the alert went out and 87 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 2017-05-01Temperature 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 00:00Z on 2017-05-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 367 square meters per square second.19395878Sfc1 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
857 m above ground
0-6 km bulk shear
59 kt
0-1 km storm-relative helicity
367 m²/s²
0-3 km storm-relative helicity
427 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.4

Open this sounding in Storm Lab

The text

As transmitted.

741 
WGUS61 KBUF 011016
FFABUF

URGENT - IMMEDIATE BROADCAST REQUESTED
Flood Watch
National Weather Service Buffalo NY
616 AM EDT Mon May 1 2017

NYZ001>008-010>014-019>021-085-011900-
/O.NEW.KBUF.FA.A.0005.170501T1800Z-170502T0400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Niagara-Orleans-Monroe-Wayne-Northern Cayuga-Oswego-Jefferson-
Lewis-Northern Erie-Genesee-Wyoming-Livingston-Ontario-Chautauqua-
Cattaraugus-Allegany-Southern Erie-
Including the cities of Niagara Falls, Medina, Rochester, Newark,
Fair Haven, Oswego, Watertown, Lowville, Buffalo, Batavia, 
Warsaw, Geneseo, Canandaigua, Jamestown, Olean, Wellsville, 
Orchard Park, and Springville
616 AM EDT Mon May 1 2017

...FLOOD WATCH IN EFFECT FROM 2 PM EDT THIS AFTERNOON THROUGH
THIS EVENING...

The National Weather Service in Buffalo has issued a

* Flood Watch Western and portions of Central New York. 

* From 2 PM EDT this afternoon through this evening.

* Showers and thunderstorms will produce about an inch of rainfall
  today, with locally higher amounts up to two inches. This
  combined with existing wet conditions may result in flooding.

* With water levels already high, it will not take much rainfall
  to cause flooding in some area creeks and streams. Urban areas
  and areas with steep terrain will also be vulnerable to 
  flooding.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flood Watch means there is a potential for flooding based on
current forecasts. You should monitor later forecasts and be
alert for possible flood warnings. Those living in areas prone to
flooding should be prepared to take action should flooding
develop. Stay tuned to weather radio or other radio and tv
stations for further details or updates

&&

$$

Apffel
2 follow-up statements
862 
WGUS61 KBUF 011815
FFABUF

Flood Watch
National Weather Service Buffalo NY
215 PM EDT Mon May 1 2017

NYZ001>008-010>014-019>021-085-020215-
/O.CON.KBUF.FA.A.0005.000000T0000Z-170502T0400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Niagara-Orleans-Monroe-Wayne-Northern Cayuga-Oswego-Jefferson-
Lewis-Northern Erie-Genesee-Wyoming-Livingston-Ontario-Chautauqua-
Cattaraugus-Allegany-Southern Erie-
Including the cities of Niagara Falls, Medina, Rochester, Newark,
Fair Haven, Oswego, Watertown, Lowville, Buffalo, Batavia, 
Warsaw, Geneseo, Canandaigua, Jamestown, Olean, Wellsville, 
Orchard Park, and Springville
215 PM EDT Mon May 1 2017

...FLOOD WATCH REMAINS IN EFFECT UNTIL MIDNIGHT EDT TONIGHT...

The Flood Watch continues for

* All of western and North Central New York.

* Until midnight EDT tonight.

* Showers and thunderstorms will produce about an inch of 
  rainfall today, with locally higher amounts up to two inches. 
  This combined with existing wet conditions may result in 
  flooding. 

* With water levels already high, it will not take much rainfall 
  to cause flooding in some area creeks and streams. Urban areas 
  and areas with steep terrain will also be vulnerable to 
  flooding. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flood Watch means there is a potential for flooding based on
current forecasts. You should monitor later forecasts and be
alert for possible flood warnings. Those living in areas prone to
flooding should be prepared to take action should flooding
develop. Stay tuned to weather radio or other radio and tv
stations for further details or updates

&&

$$

Church
169 
WGUS61 KBUF 012339
FFABUF

Flood Watch
National Weather Service Buffalo NY
739 PM EDT Mon May 1 2017

NYZ001>008-010>014-019>021-085-020045-
/O.CAN.KBUF.FA.A.0005.000000T0000Z-170502T0400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Niagara-Orleans-Monroe-Wayne-Northern Cayuga-Oswego-Jefferson-
Lewis-Northern Erie-Genesee-Wyoming-Livingston-Ontario-Chautauqua-
Cattaraugus-Allegany-Southern Erie-
Including the cities of Niagara Falls, Medina, Rochester, Newark,
Fair Haven, Oswego, Watertown, Lowville, Buffalo, Batavia, 
Warsaw, Geneseo, Canandaigua, Jamestown, Olean, Wellsville, 
Orchard Park, and Springville
739 PM EDT Mon May 1 2017

...FLOOD WATCH IS CANCELLED...

The Flood Watch for portions of central and western New York has
been cancelled. 

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 30, 8:20 PM EDTSpecial Weather StatementBUFOntario40 min
Apr 30, 9:57 PM EDTSpecial Weather StatementBUFNiagara48 min
Apr 30, 10:09 PM EDTSpecial Marine WarningBUF81 min
Apr 30, 10:34 PM EDTSevere Thunderstorm WarningBUFErie, Niagara41 min
May 1, 3:45 AM EDTLakeshore Flood WarningBUFCayuga, Jefferson, Oswego, Wayne60 hr
May 1, 2:10 PM EDTSpecial Marine WarningBUF95 min
May 1, 2:20 PM EDTSevere Thunderstorm WarningBUFChautauqua55 min
May 1, 2:40 PM EDTSpecial Marine WarningBUF65 min
May 1, 2:41 PM EDTSpecial Marine WarningBUF64 min
May 1, 3:00 PM EDTSevere Thunderstorm WarningBUFErie, Niagara60 min
May 1, 3:06 PM EDTSevere Thunderstorm WarningBUFCattaraugus, Chautauqua, Erie54 min
May 1, 3:26 PM EDTSpecial Marine WarningBUF94 min
May 1, 3:47 PM EDTSevere Thunderstorm WarningBUFErie, Genesee, Niagara, Orleans, Wyoming58 min
May 1, 3:50 PM EDTSevere Thunderstorm WarningBUFAllegany, Cattaraugus55 min
May 1, 4:16 PM EDTSevere Thunderstorm WarningBUFGenesee, Livingston, Monroe, Orleans, Wyoming14 min
May 1, 4:24 PM EDTSevere Thunderstorm WarningBUFGenesee, Livingston, Monroe, Orleans, Wyoming51 min
May 1, 4:28 PM EDTSevere Thunderstorm WarningBUFAllegany, Livingston62 min
May 1, 4:45 PM EDTAreal Flood WarningBUFAllegany, Cattaraugus, Chautauqua, Erie, Genesee, Livingston and 5 more3 hr
May 1, 4:49 PM EDTSpecial Marine WarningBUF116 min
May 1, 4:52 PM EDTSevere Thunderstorm WarningBUFLivingston, Monroe, Ontario, Wayne53 min
May 1, 5:18 PM EDTSmall Craft AdvisoryBUF47 hr
May 1, 5:36 PM EDTSevere Thunderstorm WarningBUFJefferson, Oswego54 min
May 1, 5:38 PM EDTSpecial Marine WarningBUF97 min
May 1, 5:46 PM EDTSevere Thunderstorm WarningBUFCayuga, Ontario, Wayne59 min
May 1, 6:09 PM EDTSevere Thunderstorm WarningBUFJefferson, Lewis, Oswego66 min
May 1, 6:45 PM EDTSpecial Marine WarningBUF60 min

Nearby

Flood Watches in New York, 2017Every flood watch in 2017

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.