Alert archive / New York / Areal Flood Warnings in 2017

Areal Flood Warning 13, NWS Buffalo, NY

July 13, 20178 counties in New York

NWS Buffalo, NY issued this areal flood warning at Jul 13, 2017, 1:42 PM EDT for 8 counties in New York. It was in force for 6 hr. 3 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: Jul 13, 2017, 1:42 PM EDT (17:42 UTC)
Expired: Jul 13, 2017, 7:45 PM EDT
In force: 6 hr
Issued by: NWS Buffalo, NY
Area: Storm-based polygon
Flood severity: None

Counties Erie County, NY, Genesee County, NY, Livingston County, NY, Monroe County, NY, Niagara County, NY, Ontario County, NY, Orleans County, NY, Wyoming County, NY

What was reported inside it

Time	Report	Where	Remark
Jul 13, 1:45 PM EDT	FLOOD	Attica, NY	ATTICA CREEK FLOWING OVER PROSPECT ROAD INTO THE SHOPPING CENTER.
Jul 13, 2:00 PM EDT	FLOOD	2 Ene Marilla, NY	WATER RESCUE FROM HOME ON CLINTON ST
Jul 13, 2:56 PM EDT	FLOOD	Alden, NY	3 ROD ROAD IS CLOSED BETWEEN CARY ROAD AND CAYUGA CREEK ROAD DUE TO THE CAYUGA CREEK SPILLING OVER THE ROADWAY

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 12:00Z, 5.7 hours before the alert went out and 13 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: 290 J/kg
Mixed-layer CIN: -42 J/kg
Mixed-layer LCL: 636 m above ground
0-6 km bulk shear: 39 kt
0-1 km storm-relative helicity: 119 m²/s²
0-3 km storm-relative helicity: 135 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 2.2

Open this sounding in Storm Lab

The text

As transmitted.

961 
WGUS41 KBUF 131742
FLWBUF

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service Buffalo NY
142 PM EDT THU JUL 13 2017

NYC029-037-051-055-063-069-073-121-132345-
/O.NEW.KBUF.FA.W.0013.170713T1742Z-170713T2345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Wyoming NY-Erie NY-Livingston NY-Niagara NY-Orleans NY-Monroe NY-
Genesee NY-Ontario NY-
142 PM EDT THU JUL 13 2017

The National Weather Service in Buffalo has issued a

* Flood Warning for...
  Northern Wyoming County in western New York...
  Northeastern Erie County in western New York...
  Northern Livingston County in western New York...
  Niagara County in western New York...
  Southern Orleans County in western New York...
  Monroe County in western New York...
  Genesee County in western New York...
  West central Ontario County in western New York...

* Until 745 PM EDT Thursday.

* At 140 PM EDT, local law enforcement reported widespread flooding 
  throughout the region, including many roadways that are closed due 
  to high water, debris or wash outs. While the steady heavy rain 
  has ended, it will take some time for the water to recede across 
  the area.

* Some locations that will experience flooding include...
  Buffalo, Greece, Cheektowaga, Irondequoit, West Seneca, North 
  Tonawanda, Corfu, Batavia and Clarence.

This includes the following highways...
 Interstate 390 between exits 8 and 12.
 Interstate 90 between exits 53 and 46.

LAT...LON 4314 7904 4322 7906 4327 7753 4279 7749
      4287 7892 4291 7890 4293 7891 4296 7893
      4297 7897 4304 7901 4306 7900 4307 7903
      4313 7906

$$

RSH

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 12, 11:24 PM EDT	Special Weather Statement	BUF	Orleans	36 min
Jul 13, 12:35 AM EDT	Severe Thunderstorm Warning	BUF	Livingston, Monroe, Ontario	55 min
Jul 13, 3:58 AM EDT	Small Craft Advisory	BUF		10 hr
Jul 13, 9:29 AM EDT	Special Weather Statement	BUF	Genesee	31 min
Jul 13, 9:49 AM EDT	Flash Flood Warning	BUF	Erie, Genesee, Livingston, Monroe, Niagara, Ontario and 2 more	4 hr
Jul 13, 10:18 AM EDT	Flash Flood Warning	BUF	Erie, Livingston, Wyoming	4 hr
Jul 13, 10:41 AM EDT	Flash Flood Warning	BUF	Livingston, Monroe, Ontario, Wayne	4 hr
Jul 13, 1:43 PM EDT	River Flood Warning	BUF	Erie, Wyoming	9 hr
Jul 13, 2:09 PM EDT	Areal Flood Warning	BUF	Erie, Livingston, Wyoming	6 hr
Jul 13, 2:41 PM EDT	Areal Flood Warning	BUF	Livingston, Monroe, Ontario, Wayne	3 hr
Jul 13, 6:10 PM EDT	Special Weather Statement	BUF	Cattaraugus	65 min

Nearby

Areal Flood Warnings in New York, 2017 Every areal flood warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive.