Alert archive / New York / Flash Flood Warnings in 2014

Flash Flood Warning 4, NWS Buffalo, NY

May 13, 20144 counties in New York

NWS Buffalo, NY issued this flash flood warning at May 13, 2014, 9:32 PM EDT for 4 counties in New York. It was in force for 5 hr. 2 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: May 13, 2014, 9:32 PM EDT (01:32 UTC)
Expired: May 14, 2014, 2:30 AM EDT
In force: 5 hr
Issued by: NWS Buffalo, NY
Area: Storm-based polygon
Flood severity: None

Counties Cayuga County, NY, Livingston County, NY, Ontario County, NY, Wayne County, NY

The radar

The Buffalo radar (KBUF), 121 km from the middle of the area, began a volume at 01:31 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

Time	Report	Where	Remark
May 13, 9:45 PM EDT	FLASH FLOOD	Newark, NY	CAR STUCK IN MUD COVERED ROADWAY. PAY LOADER BEING BROUGHT IN TO HELP CLEAR THE ROADS.
May 13, 10:15 PM EDT	FLASH FLOOD	Lyons, NY	FINK ROAD WASHED OUT IN LYONS AND ARCADIA. THE COUNTY JAIL ALSO HAD FLOOD WATER COME IN ON THE FIRST FLOOR.

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

The nearest sounding before it

Buffalo Intl Airport, NY (KBUF), launched 00:00Z, 1.5 hours before the alert went out and 117 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 736 J/kg
Mixed-layer CIN: -53 J/kg
Mixed-layer LCL: 1723 m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: 71 m²/s²
0-3 km storm-relative helicity: 134 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.

705 
WGUS51 KBUF 140132
FFWBUF
NYC011-051-069-117-140430-
/O.NEW.KBUF.FF.W.0004.140514T0132Z-140514T0430Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
932 PM EDT TUE MAY 13 2014

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHWESTERN CAYUGA COUNTY IN CENTRAL NEW YORK...
  SOUTHERN LIVINGSTON COUNTY IN WESTERN NEW YORK...
  THIS INCLUDES THE CITY OF DANSVILLE...
  ONTARIO COUNTY IN WESTERN NEW YORK...
  THIS INCLUDES THE CITIES OF...GENEVA...CANANDAIGUA...
  SOUTHERN WAYNE COUNTY IN WESTERN NEW YORK...

* UNTIL 1230 AM EDT

* AT 930 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED  
  FLASH FLOODING FROM A THUNDERSTORM OVER THE WARNED AREA.           
  THUNDERSTORMS WILL BRING BETWEEN ONE AND TWO INCHES OF RAIN TO     
  PARTS OF THE WARNING AREA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY
ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS...STREAMS AND OTHER LOW
LYING AREAS ARE SUBJECT TO FLOODING.

&&

LAT...LON 4249 7772 4267 7796 4312 7717 4330 7664
      4311 7647 4303 7656 4301 7695 4277 7697
      4275 7702 4276 7731 4263 7737 4257 7752
      4257 7765 4254 7766 4253 7771

$$

APFFEL

4 follow-up statements

705 
WGUS71 KBUF 140320
FFSBUF

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
1120 PM EDT TUE MAY 13 2014

NYC011-051-069-117-140430-
/O.CON.KBUF.FF.W.0004.000000T0000Z-140514T0430Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
LIVINGSTON NY-ONTARIO NY-WAYNE NY-CAYUGA NY-
1120 PM EDT TUE MAY 13 2014

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1230 AM EDT FOR
NORTHWESTERN CAYUGA...SOUTHERN WAYNE...ONTARIO AND SOUTHERN
LIVINGSTON COUNTIES...

AT 1118 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE THUNDERSTORMS PRODUCING FLASH FLOODING OVER THE WARNED 
AREA. ADDITIONAL RAINFALL AMOUNTS OF ONE HALF INCH TO AN INCH WILL 
BE POSSIBLE IN THE WARNED AREA.

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO BRISTOL...
WEEDSPORT...PHELPS...PALMYRA...NEWARK...LYONS...GENEVA...CLYDE...
CLIFTON SPRINGS...CATO AND CANANDAIGUA

PRECAUTIONARY/PREPAREDNESS ACTIONS...

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY
ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS...STREAMS AND OTHER LOW
LYING AREAS ARE SUBJECT TO FLOODING.

&&

LAT...LON 4249 7772 4267 7796 4312 7717 4330 7664
      4311 7647 4303 7656 4301 7695 4277 7697
      4275 7702 4276 7731 4263 7737 4257 7752
      4257 7765 4254 7766 4253 7771

$$

JJR

555 
WGUS71 KBUF 140414
FFSBUF

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
1214 AM EDT WED MAY 14 2014

NYC011-117-140419-
/O.CAN.KBUF.FF.W.0004.000000T0000Z-140514T0430Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WAYNE NY-CAYUGA NY-
1214 AM EDT WED MAY 14 2014

...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR NORTHWESTERN CAYUGA
AND SOUTHERN WAYNE COUNTIES...

LAT...LON 4249 7772 4259 7786 4292 7728 4297 7717
      4301 7696 4277 7697 4275 7702 4276 7731
      4263 7737 4257 7752 4257 7765 4254 7766
      4253 7771

$$

NYC051-069-140430-
/O.CON.KBUF.FF.W.0004.000000T0000Z-140514T0430Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
LIVINGSTON NY-ONTARIO NY-
1214 AM EDT WED MAY 14 2014

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1230 AM EDT FOR
ONTARIO AND SOUTHERN LIVINGSTON COUNTIES...

AT 1210 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE SHOWERS AND THUNDERSTORMS ACROSS THE WARNING AREA...WITH 
ADDITIONAL RAINFALL UP TO A HALF INCH POSSIBLE OVER THE WARNED AREA. 
HEAVY RAINS HAVE ALREADY CAUSED FLOODING ACROSS PORTIONS OF THE 
WARNING AREA...AND CREEKS AND STREAMS CAN CONTINUE TO RISE FOR HOURS 
AFTER THE HEAVIEST RAINFALL AND POTENTIALLY CAUSE FLOODING.

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO PHELPS...
GENEVA...CLIFTON SPRINGS AND CANANDAIGUA

PRECAUTIONARY/PREPAREDNESS ACTIONS...

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...COUNTRY ROADS...AS WELL AS FARMLAND ALONG THE
BANKS OF CREEKS AND STREAMS.

&&

LAT...LON 4249 7772 4259 7786 4292 7728 4297 7717
      4301 7696 4277 7697 4275 7702 4276 7731
      4263 7737 4257 7752 4257 7765 4254 7766
      4253 7771

$$

APFFEL

518 
WGUS51 KBUF 140421
FFWBUF
NYC051-069-140630-
/O.EXT.KBUF.FF.W.0004.000000T0000Z-140514T0630Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
1221 AM EDT WED MAY 14 2014

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS EXTENDED THE

* FLASH FLOOD WARNING FOR...
  SOUTHERN LIVINGSTON COUNTY IN WESTERN NEW YORK...  
  THIS INCLUDES THE CITY OF DANSVILLE...
  ONTARIO COUNTY IN WESTERN NEW YORK...
  THIS INCLUDES THE CITY OF CANANDAIGUA...

* UNTIL 230 AM EDT

* AT 1215 AM EDT...AROUND 2 INCHES OF RAIN HAS FALLEN ACROSS         
  PORTIONS OF THE WARNING AREA...WITH ADDITIONAL RAINFALL UP TO A    
  HALF INCH POSSIBLE. LOCAL LAW ENFORCEMENT OFFICIALS ALREADY        
  REPORTED FLASH FLOODING FROM A THUNDERSTORM OVER THE WARNED AREA.  
  STREAMS AND CREEKS CAN CONTINUE TO RISE EVEN AFTER THE HEAVIEST    
  RAIN...RESULTING IN THE POTENTIAL FOR ADDITIONAL FLOODING DURING   
  THE EARLY MORNING HOURS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...COUNTRY ROADS...AS WELL AS FARMLAND ALONG THE
BANKS OF CREEKS AND STREAMS.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE
UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS
SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

&&

LAT...LON 4249 7772 4259 7786 4292 7728 4297 7717
      4301 7696 4277 7697 4275 7702 4276 7731
      4263 7737 4257 7752 4257 7765 4254 7766
      4253 7771

$$

APFFEL

454 
WGUS71 KBUF 140631
FFSBUF

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
231 AM EDT WED MAY 14 2014

NYC051-069-140638-
/O.EXP.KBUF.FF.W.0004.000000T0000Z-140514T0630Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
LIVINGSTON NY-ONTARIO NY-
231 AM EDT WED MAY 14 2014

...THE FLASH FLOOD WARNING WILL EXPIRE AT 230 AM EDT FOR ONTARIO AND
SOUTHERN LIVINGSTON COUNTIES...

AT 228 AM EDT NATIONAL WEATHER SERVICE RADAR SHOWED THAT THE 
THUNDERSTORMS THAT PROMPTED THE FLASH FLOOD WARNING HAVE EXITED THE 
AREA...THUS THE FLOOD WARNING WILL BE ALLOWED TO EXPIRE.

HIGH WATER ISSUES WILL LIKELY LINGER INTO THE MORNING HOURS... 
ESPECIALLY ACROSS SOUTHERN AND EASTERN PORTIONS OF ONTARIO COUNTY.

ADDITIONAL SHOWERS AND THUNDERSTORMS WILL LIKELY MOVE ACROSS THIS 
AREA ONCE AGAIN AFTER 4 AM. 

LAT...LON 4249 7772 4259 7786 4292 7728 4297 7717
      4301 7696 4277 7697 4275 7702 4276 7731
      4263 7737 4257 7752 4257 7765 4254 7766
      4253 7771

$$

TMA

The office that day

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

Issued	Product	Office	Counties	Lasted
May 13, 8:51 PM EDT	Severe Thunderstorm Warning	BUF	Ontario, Wayne	39 min
May 13, 9:50 PM EDT	Severe Thunderstorm Warning	BUF	Oswego	40 min
May 14, 1:54 AM EDT	Areal Flood Advisory	BUF	Cattaraugus, Chautauqua, Erie	4 hr
May 14, 3:11 AM EDT	Special Weather Statement	BUF	Allegany, Livingston, Wyoming	64 min
May 14, 10:33 AM EDT	Flash Flood Watch	BUF	Allegany, Cattaraugus, Cayuga, Chautauqua, Erie, Genesee and 7 more	18 hr
May 14, 4:46 PM EDT	Severe Thunderstorm Warning	BUF	Erie, Niagara, Orleans	59 min
May 14, 5:44 PM EDT	Severe Thunderstorm Warning	BUF	Erie, Genesee, Monroe, Niagara, Orleans	61 min
May 14, 6:09 PM EDT	Areal Flood Advisory	BUF	Erie, Genesee, Niagara, Orleans	4 hr
May 14, 6:40 PM EDT	Special Marine Warning	BUF		95 min
May 14, 6:49 PM EDT	Severe Thunderstorm Warning	BUF	Niagara	56 min

Nearby

Flash Flood Warnings in New York, 2014 Every flash flood warning in 2014

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.