Alert archive / New York / Flood Watches in 2015

Flood Watch 4, NWS Buffalo, NY

May 31, 20154 counties in New York

NWS Buffalo, NY issued this flood watch at May 31, 2015, 1:31 PM EDT for 4 counties in New York. It took effect at May 31, 2015, 8:00 PM EDT. It was in force for 8 hr.

The area

The counties it named.

The facts

Issued
May 31, 2015, 1:31 PM EDT (17:31 UTC)
In effect from
May 31, 2015, 8:00 PM EDT
Expired
Jun 1, 2015, 4:20 AM EDT
In force
8 hr
Issued by
NWS Buffalo, NY
Flood severity
None

Counties Livingston County, NY, Ontario County, NY, Wayne County, NY, Wyoming County, NY

The radar

The Buffalo radar (KBUF), 96 km from the middle of the area, began a volume at 17:34 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, 5.5 hours before the alert went out and 93 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 2015-05-31Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCLEL10008507005003002001001 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 2015-05-31The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -19 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
555 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
-19 m²/s²
0-3 km storm-relative helicity
206 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.

596 
WGUS61 KBUF 311731
FFABUF

URGENT - IMMEDIATE BROADCAST REQUESTED
FLOOD WATCH
NATIONAL WEATHER SERVICE BUFFALO NY
131 PM EDT SUN MAY 31 2015


NYZ004-012>014-010145-
/O.NEW.KBUF.FA.A.0004.150601T0000Z-150601T1500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WAYNE-WYOMING-LIVINGSTON-ONTARIO-
INCLUDING THE CITIES OF...NEWARK...WARSAW...GENESEO...CANANDAIGUA
131 PM EDT SUN MAY 31 2015

...FLOOD WATCH IN EFFECT FROM 8 PM EDT THIS EVENING THROUGH
MONDAY MORNING...

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

* FLOOD WATCH FOR A PORTION OF WESTERN NEW YORK...INCLUDING THE 
  FOLLOWING COUNTIES...LIVINGSTON...ONTARIO...WAYNE AND WYOMING. 

* FROM 8 PM EDT THIS EVENING THROUGH MONDAY MORNING.

* AN AREA OF MODERATE TO HEAVY RAINFALL WILL CROSS ALL OF WESTERN
  AND CENTRAL NEW YORK THIS AFTERNOON THROUGH MONDAY MORNING.
  ADDITIONAL RAINFALL AMOUNTS OF 1.5 TO 2 INCHES ARE EXPECTED
  ACROSS THE REGION. THIS RAIN WILL HAVE LITTLE IMPACT FOR MOST OF
  THE REGION DUE TO RECENT DRY CONDITIONS...HOWEVER A CORRIDOR
  FROM WYOMING COUNTY INTO THE WESTERN AND NORTHERN FINGER LAKES
  ALREADY RECEIVED HEAVY RAINFALL FROM THUNDERSTORMS SATURDAY
  EVENING. SOILS ARE SATURATED IN THIS AREA...AND THE ADDITIONAL
  RAINFALL MAY RESULT IN FLOODING.

* EXCESSIVE RUNOFF FROM THE HEAVY RAINFALL IN AREAS WHERE GROUND
  IS ALREADY SATURATED MAY RESULT IN FLOODING OF SMALL CREEKS AND
  POOR DRAINAGE AREAS.

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

&&

$$

HITCHCOCK
3 follow-up statements
860 
WGUS61 KBUF 311953
FFABUF

FLOOD WATCH
NATIONAL WEATHER SERVICE BUFFALO NY
353 PM EDT SUN MAY 31 2015


NYZ004-012>014-010400-
/O.CON.KBUF.FA.A.0004.150601T0000Z-150601T1500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WAYNE-WYOMING-LIVINGSTON-ONTARIO-
INCLUDING THE CITIES OF...NEWARK...WARSAW...GENESEO...CANANDAIGUA
353 PM EDT SUN MAY 31 2015

...FLOOD WATCH REMAINS IN EFFECT FROM 8 PM EDT THIS EVENING
THROUGH MONDAY MORNING...

THE FLOOD WATCH CONTINUES FOR

* A PORTION OF WESTERN NEW YORK...INCLUDING THE FOLLOWING 
  COUNTIES...LIVINGSTON...ONTARIO...WAYNE AND WYOMING. 

* FROM 8 PM EDT THIS EVENING THROUGH MONDAY MORNING.

* AN AREA OF MODERATE TO HEAVY RAINFALL WILL CROSS ALL OF WESTERN
  AND CENTRAL NEW YORK THROUGH MONDAY MORNING. ADDITIONAL RAINFALL
  AMOUNTS OF AROUND 1.5 INCHES ARE EXPECTED ACROSS THE REGION.
  THIS RAIN WILL HAVE LITTLE IMPACT FOR MOST OF THE AREA DUE TO
  RECENT DRY CONDITIONS...HOWEVER A CORRIDOR FROM WYOMING COUNTY
  INTO THE WESTERN AND NORTHERN FINGER LAKES ALREADY RECEIVED
  HEAVY RAINFALL FROM THUNDERSTORMS SATURDAY EVENING. SOILS ARE
  SATURATED IN THIS AREA...AND THE ADDITIONAL RAINFALL MAY RESULT
  IN FLOODING.

* EXCESSIVE RUNOFF FROM THE HEAVY RAINFALL IN AREAS WHERE GROUND 
  IS ALREADY SATURATED MAY RESULT IN FLOODING OF SMALL CREEKS 
  AND POOR DRAINAGE AREAS. 

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

&&

$$

HITCHCOCK
125 
WGUS61 KBUF 010306
FFABUF

FLOOD WATCH
NATIONAL WEATHER SERVICE BUFFALO NY
1106 PM EDT SUN MAY 31 2015

NYZ004-012>014-011115-
/O.CON.KBUF.FA.A.0004.000000T0000Z-150601T1500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WAYNE-WYOMING-LIVINGSTON-ONTARIO-
INCLUDING THE CITIES OF...NEWARK...WARSAW...GENESEO...CANANDAIGUA
1106 PM EDT SUN MAY 31 2015

...FLOOD WATCH REMAINS IN EFFECT UNTIL 11 AM EDT MONDAY...

THE FLOOD WATCH CONTINUES FOR

* A PORTION OF WESTERN NEW YORK...INCLUDING THE FOLLOWING 
  COUNTIES...LIVINGSTON...ONTARIO...WAYNE AND WYOMING. 

* UNTIL 11 AM EDT MONDAY.

* AN AREA OF MODERATE TO HEAVY RAINFALL WILL CROSS ALL OF 
  WESTERN AND CENTRAL NEW YORK THROUGH MONDAY MORNING. 
  ADDITIONAL RAINFALL AMOUNTS OF AROUND 1.5 INCHES ARE EXPECTED 
  ACROSS THE REGION. THIS RAIN WILL HAVE LITTLE IMPACT FOR MOST 
  OF THE AREA DUE TO RECENT DRY CONDITIONS...HOWEVER A CORRIDOR 
  FROM WYOMING COUNTY INTO THE WESTERN AND NORTHERN FINGER LAKES 
  ALREADY RECEIVED HEAVY RAINFALL FROM THUNDERSTORMS SATURDAY 
  EVENING. SOILS ARE SATURATED IN THIS AREA...AND THE ADDITIONAL 
  RAINFALL MAY RESULT IN FLOODING. 

* EXCESSIVE RUNOFF FROM THE HEAVY RAINFALL IN AREAS WHERE GROUND 
  IS ALREADY SATURATED MAY RESULT IN FLOODING OF SMALL CREEKS 
  AND POOR DRAINAGE AREAS. 

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

&&

$$

RSH
635 
WGUS61 KBUF 010820
FFABUF

FLOOD WATCH
NATIONAL WEATHER SERVICE BUFFALO NY
420 AM EDT MON JUN 1 2015

NYZ004-012>014-010930-
/O.CAN.KBUF.FA.A.0004.000000T0000Z-150601T1500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WAYNE-WYOMING-LIVINGSTON-ONTARIO-
INCLUDING THE CITIES OF...NEWARK...WARSAW...GENESEO...CANANDAIGUA
419 AM EDT MON JUN 1 2015

...FLOOD WATCH IS CANCELLED...

THE FLOOD WATCH FOR A PORTION OF WESTERN NEW YORK HAS BEEN
CANCELLED.

ALTHOUGH STEADY RAIN HAS FALLEN ACROSS THE WATCH AREA...RAINFALL
RATES AND DRY SOIL CONDITIONS HAVE LIMITED RUNOFF. THERE MAY BE
MINOR PONDING OF WATER ON ROADWAYS AND LOWLANDS THIS MORNING...BUT
WIDESPREAD FLOODING IS NOT EXPECTED.
 
$$

APFFEL

The office that day

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

IssuedProductOfficeCountiesLasted
May 30, 9:40 PM EDTSpecial Weather StatementBUFChautauqua65 min

Nearby

Flood Watches in New York, 2015Every 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.