Alert archive / New York / Flash Flood Warnings in 2014

Flash Flood Warning 6, NWS Buffalo, NY

May 22, 2014Lewis County, New York

NWS Buffalo, NY issued this flash flood warning at May 22, 2014, 2:17 PM EDT for Lewis County, New York. It was in force for 6 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 22, 2014, 2:17 PM EDT (18:17 UTC)
Expired: May 22, 2014, 8:15 PM EDT
In force: 6 hr
Issued by: NWS Buffalo, NY
Area: Storm-based polygon
Flood severity: None

County Lewis County, NY

The radar

The Ft Drum radar (KTYX), 33 km from the middle of the area, began a volume at 18:18 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.

What was reported inside it

Time	Report	Where	Remark
May 22, 3:05 PM EDT	FLASH FLOOD	1 Sw Port Leyden, NY	LEYDEN ROAD WASHED OUT
May 22, 4:40 PM EDT	FLASH FLOOD	Port Leyden, NY	BASEMENT WALL COLLAPSE... HOMES EVACUATED ON QUARRY STREET.

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

The nearest sounding before it

Albany, NY (KALY), launched 12:00Z, 6.3 hours before the alert went out and 159 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: 16 J/kg
Mixed-layer CIN: -167 J/kg
Mixed-layer LCL: 762 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: 7 m²/s²
0-3 km storm-relative helicity: 71 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

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

344 
WGUS51 KBUF 221817
FFWBUF
NYC049-222115-
/O.NEW.KBUF.FF.W.0006.140522T1817Z-140522T2115Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
217 PM EDT THU MAY 22 2014

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTH CENTRAL LEWIS COUNTY IN CENTRAL NEW YORK...

* UNTIL 515 PM EDT

* AT 204 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  FLASH FLOODING FROM A THUNDERSTORM OVER THE WARNED AREA.

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.

SOME CREEKS AND RIVERS INCLUDED IN THE WARNING ARE TRIBUTARIES 
LEADING INTO THE SUGAR RIVER AND MOOSE RIVER.  SOME ROADS INCLUDE 
ROUTE 26...12...AND 12D.  

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY. MOVE TO HIGHER GROUND.

&&

LAT...LON 4348 7539 4348 7540 4362 7553 4370 7537
      4357 7522

$$

ZAFF

5 follow-up statements

534 
WGUS71 KBUF 221905
FFSBUF

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
305 PM EDT THU MAY 22 2014

NYC049-222115-
/O.CON.KBUF.FF.W.0006.000000T0000Z-140522T2115Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
LEWIS NY-
305 PM EDT THU MAY 22 2014

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 515 PM EDT FOR SOUTH
CENTRAL LEWIS COUNTY...

AT 300 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A THUNDERSTORM PRODUCING FLASH FLOODING OVER THE WARNED
AREA.

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO TURIN...PORT 
LEYDEN AND LYONS FALLS.

NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO SHOW 
THUNDERSTORMS DEVELOPING AND REDEVELOPING OVER THE SAME AREA OF 
SOUTHERN LEWIS COUNTY. THE AREA BETWEEN CONSTABLEVILLE...PORT LEYDEN 
AND LYONS FALLS HAVE RECEIVED IN EXCESS OF 3 INCHES OF RAIN SINCE 
1:30 PM EDT...WITH RADAR ESTIMATES APPROACHING 5 INCHES LOCALLY. 
STATE ROADS AFFECTED COULD INCLUDE ROUTES 51...12D...43 AND 12.

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.

IN HILLY TERRAIN THERE ARE HUNDREDS OF LOW WATER CROSSINGS WHICH ARE
POTENTIALLY DANGEROUS IN HEAVY RAIN. DO NOT ATTEMPT TO TRAVEL ACROSS
FLOODED ROADS. FIND ALTERNATE ROUTES. IT TAKES ONLY A FEW INCHES OF
SWIFTLY FLOWING WATER TO CARRY VEHICLES AWAY.

&&

LAT...LON 4348 7539 4348 7540 4362 7553 4370 7537
      4357 7522

$$

RSH

565 
WGUS51 KBUF 222055
FFWBUF
NYC049-230015-
/O.EXT.KBUF.FF.W.0006.000000T0000Z-140523T0015Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
455 PM EDT THU MAY 22 2014

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS EXTENDED THE

* FLASH FLOOD WARNING FOR...
  SOUTHERN LEWIS COUNTY IN CENTRAL NEW YORK...

* UNTIL 815 PM EDT

* AT 448 PM EDT...SERIOUS FLASH FLOODING WAS REPORTED BY BOTH THE 
LEWIS COUNTY 911 CENTER AND THE PUBLIC IN THE AREA BOUNDED BY 
CONSTABLEVILLE...PORT LEYDEN AND LYONS FALLS FROM A SERIES OF SLOW 
MOVING THUNDERSTORMS OVER THE WARNED AREA. 

SLOW MOVING THUNDERSTORMS THAT HAVE DEVELOPED AND REDEVELOPED OVER 
THE SAME PORTION OF SOUTHERN LEWIS COUNTY HAVE GENERATED THREE TO 
FIVE INCHES OF RAIN SINCE 2 PM...WITH DOPPLER RADAR ESTIMATING RAIN 
FALL OF MORE THAN 7 INCHES IN A FEW SMALL AREAS. 

ADDITIONAL SHOWERS AND THUNDERSTORMS OVER THIS SAME AREA ARE 
EXPECTED TO PRODUCE ANOTHER HALF TO ONE INCH OF RAIN BETWEEN 5 AND 7 
PM.

A PORTION OF LEYDEN ROAD IN PORT LEYDEN HAS BEEN WASHED OUT AND THE 
PUBLIC REPORTS BOAT RESCUES IN TURIN. 

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.

IN HILLY TERRAIN THERE ARE HUNDREDS OF LOW WATER CROSSINGS WHICH ARE
POTENTIALLY DANGEROUS IN HEAVY RAIN. DO NOT ATTEMPT TO TRAVEL ACROSS
FLOODED ROADS. FIND ALTERNATE ROUTES. IT ONLY TAKES A FEW INCHES OF
SWIFTLY FLOWING WATER TO CARRY VEHICLES AWAY.

&&

LAT...LON 4348 7539 4348 7540 4362 7553 4370 7537
      4357 7522

$$

RSH

201 
WGUS71 KBUF 222200
FFSBUF

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
600 PM EDT THU MAY 22 2014

NYC049-230015-
/O.CON.KBUF.FF.W.0006.000000T0000Z-140523T0015Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
LEWIS NY-
600 PM EDT THU MAY 22 2014

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 815 PM EDT FOR SOUTH
CENTRAL LEWIS COUNTY...

AT 550 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
THAT THE HEAVY THUNDERSTORMS FROM THE AFTERNOON HAVE MOVED OUT OF 
THE WARNED AREA. SEVERAL THUNDERSTORMS THAT PASSED OVER THIS PORTION 
OF SOUTHERN LEWIS COUNTY PRODUCED OVER 4 INCHES OF RAIN IN LESS THAN 
3 HOURS EARLIER THIS AFTERNOON...WITH NATIONAL WEATHER SERVICE 
DOPPLER RADAR SUGGESTING THAT AS MUCH AS 6 INCHES OF RAIN FELL IN 
THE AREA BOUNDED BY CONSTABLEVILLE...TURIN...PORT LEYDEN AND LYONS 
FALLS. 

WHILE THE HEAVIEST RAINS HAVE MOVED OUT OF THE WARNED AREA... 
ADDITIONAL SHOWERS WILL STILL BE POSSIBLE THIS EVENING. 

THERE HAVE ALREADY BEEN REPORTS OF ROADS THAT HAVE BEEN WASHED OUT 
IN THIS AREA.  

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.

IN HILLY TERRAIN THERE ARE HUNDREDS OF LOW WATER CROSSINGS WHICH ARE
POTENTIALLY DANGEROUS IN HEAVY RAIN. DO NOT ATTEMPT TO TRAVEL ACROSS
FLOODED ROADS. FIND ALTERNATE ROUTES. IT TAKES ONLY A FEW INCHES OF
SWIFTLY FLOWING WATER TO CARRY VEHICLES AWAY.

&&

LAT...LON 4348 7539 4348 7540 4362 7553 4370 7537
      4357 7522

$$

RSH

995 
WGUS71 KBUF 222328
FFSBUF

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
728 PM EDT THU MAY 22 2014

NYC049-230015-
/O.CON.KBUF.FF.W.0006.000000T0000Z-140523T0015Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
LEWIS NY-
728 PM EDT THU MAY 22 2014

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 815 PM EDT FOR SOUTH
CENTRAL LEWIS COUNTY...

AT 725 PM EDT...WHILE GENERALLY DRY WEATHER WILL BE FOUND ACROSS THE 
WARNED AREA FOR THE REMAINDER OF THE EARLY EVENING...THUNDERSTORMS 
FROM THE AFTERNOON PRODUCED 3 TO 5 INCHES OF RAIN ACROSS SOUTHERN 
LEWIS COUNTY. NATIONAL WEATHER SERVICE DOPPLER RADAR SUGGESTED 
ISOLATED AMOUNTS AS MUCH AS 6 INCHES OF IN THE AREA BOUNDED BY 
CONSTABLEVILLE...TURIN...PORT LEYDEN AND LYONS FALLS.  

FLOODING OF LOCAL TRIBUTARIES IS EXPECTED TO CONTINUE THROUGH AT 
LEAST 8 PM. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

IN HILLY TERRAIN THERE ARE HUNDREDS OF LOW WATER CROSSINGS WHICH ARE
POTENTIALLY DANGEROUS IN HEAVY RAIN. DO NOT ATTEMPT TO TRAVEL ACROSS
FLOODED ROADS. FIND ALTERNATE ROUTES. IT TAKES ONLY A FEW INCHES OF
SWIFTLY FLOWING WATER TO CARRY VEHICLES AWAY.

&&

LAT...LON 4348 7539 4348 7540 4362 7553 4370 7537
      4357 7522

$$

RSH

544 
WGUS71 KBUF 230013
FFSBUF

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
813 PM EDT THU MAY 22 2014

NYC049-230019-
/O.EXP.KBUF.FF.W.0006.000000T0000Z-140523T0015Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
LEWIS NY-
813 PM EDT THU MAY 22 2014

...THE FLASH FLOOD WARNING WILL EXPIRE AT 815 PM EDT FOR SOUTH
CENTRAL LEWIS COUNTY...

AT 809 PM EDT NATIONAL WEATHER SERVICE RADAR SHOWED THAT THE HEAVY 
THUNDERSTORMS THAT PROMPTED THE WARNING HAD DIMINISHED AND EXITED 
THE AREA...THUS THE FLOOD WARNING HAS BEEN ALLOWED TO EXPIRE.

ADDITIONAL SHOWERS AND THUNDERSTORMS MAY STILL FORM THIS EVENING AND 
DRIFT ACROSS AREAS RECENTLY IMPACTED BY THE HEAVY RAINS.  

PONDING OF LOW LYING AND POOR DRAINAGE AREAS WILL BE POSSIBLE FOR
AWHILE UNTIL THE WATER HAS TIME TO RUN OFF.

LAT...LON 4348 7539 4348 7540 4362 7553 4370 7537
      4357 7522

$$

THOMAS

The office that day

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

Issued	Product	Office	Counties	Lasted
May 22, 6:21 AM EDT	Special Weather Statement	BUF	Wayne	54 min
May 22, 6:49 AM EDT	Special Marine Warning	BUF		56 min
May 22, 6:49 AM EDT	Severe Thunderstorm Warning	BUF	Cayuga, Wayne	56 min
May 22, 11:23 AM EDT	Special Marine Warning	BUF		67 min
May 22, 1:06 PM EDT	Special Weather Statement	BUF	Lewis	84 min
May 22, 1:43 PM EDT	Severe Thunderstorm Warning	BUF	Lewis	32 min
May 22, 2:47 PM EDT	Special Weather Statement	BUF	Lewis	58 min
May 22, 4:36 PM EDT	Special Weather Statement	BUF	Lewis	54 min
May 22, 5:53 PM EDT	Special Weather Statement	BUF	Lewis	67 min
May 22, 7:55 PM EDT	Areal Flood Advisory	BUF	Jefferson	3 hr

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.