Alert archive / New York / Areal Flood Advisories in 2011
Areal Flood Advisory 32, NWS Buffalo, NY
NWS Buffalo, NY issued this areal flood advisory at May 23, 2011, 10:56 PM EDT for 4 counties in New York. It was in force for 3 hr.
The area
The counties it named.
The facts
- Issued
- May 23, 2011, 10:56 PM EDT (02:56 UTC)
- Expired
- May 24, 2011, 2:00 AM EDT
- In force
- 3 hr
- Issued by
- NWS Buffalo, NY
- Area
- Storm-based polygon
Counties Cattaraugus County, NY, Chautauqua County, NY, Erie County, NY, Wyoming County, NY
The radar
The Buffalo radar (KBUF), 50 km from the middle of the area, began a volume at 03:00 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, 2.9 hours before the alert went out and 48 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.
- Mixed-layer CAPE
- 191 J/kg
- Mixed-layer CIN
- -15 J/kg
- Mixed-layer LCL
- 1252 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 172 m²/s²
- 0-3 km storm-relative helicity
- 226 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 1.4
What forecasters said that day
The local office's own words before this areal flood advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Buffalo, NY wrote its last area forecast discussion before this areal flood advisory went out at May 23, 10:26 PM EDT, 30 minutes earlier.
Area forecast discussion, May 23, 10:26 PM EDT, 30 minutes before
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</html>Hazardous weather outlook, May 23, 5:07 AM EDT, 17 hours 49 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE BUFFALO NY 507 AM EDT MON MAY 23 2011 NYZ001>008-010>014-019>021-085-240915- NIAGARA-ORLEANS-MONROE-WAYNE-NORTHERN CAYUGA-OSWEGO-JEFFERSON-LEWIS- NORTHERN ERIE-GENESEE-WYOMING-LIVINGSTON-ONTARIO-CHAUTAUQUA- CATTARAUGUS-ALLEGANY-SOUTHERN ERIE- 507 AM EDT MON MAY 23 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN AND NORTH CENTRAL NEW YORK. .DAY ONE...TODAY AND TONIGHT. THE STORM PREDICTION CENTER HAS PLACED MOST OF WESTERN AND NORTH CENTRAL NEW YORK IN A SLIGHT RISK FOR SEVERE THUNDERSTORMS TODAY. SCATTERED TO NUMEROUS THUNDERSTORMS ARE EXPECTED TO DEVELOP ACROSS THE AREA DURING THE AFTERNOON AND EVENING...SOME OF WHICH COULD BE STRONG TO SEVERE WITH THE PRIMARY THREAT COMING IN THE FORM OF STRONG DAMAGING WINDS...WITH HAIL ALSO POSSIBLE. A FEW OF THESE STORMS MAY ALSO PRODUCE LOCALIZED HEAVY RAINFALL AND POOR DRAINAGE FLOODING. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY. ADDITIONAL SHOWERS AND THUNDERSTORMS ARE EXPECTED FROM WEDNESDAY NIGHT THROUGH AT LEAST FRIDAY AS A SLOW MOVING FRONTAL SYSTEM SETS UP ACROSS THE REGION. ADDITIONAL HEAVY RAINFALL WILL BE POSSIBLE DURING THIS TIME FRAME...POTENTIALLY LEADING TO ADDITIONAL FLOODING CONCERNS. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME. THIS PRODUCT...ALONG WITH OTHER WATCHES...WARNINGS...ADVISORIES... AND STATEMENTS ISSUED BY THE NATIONAL WEATHER SERVICE OFFICE IN BUFFALO CAN BE FOUND ON THE INTERNET AT HTTP://WWW.WEATHER.GOV/BUF LEZ020-040-041-LOZ030-042>045-062>065-SLZ022-024-240915- UPPER NIAGARA RIVER AND BUFFALO HARBOR- LAKE ERIE NEARSHORE WATERS FROM RIPLEY TO DUNKIRK- LAKE ERIE NEARSHORE WATERS FROM DUNKIRK TO BUFFALO- LOWER NIAGARA RIVER- LAKE ONTARIO NEARSHORE WATERS FROM THE NIAGARA RIVER TO HAMLIN BEACH- LAKE ONTARIO NEARSHORE WATERS FROM HAMLIN BEACH TO SODUS BAY- LAKE ONTARIO NEARSHORE WATERS FROM SODUS BAY TO MEXICO BAY- LAKE ONTARIO NEARSHORE WATERS FROM MEXICO BAY TO THE SAINT LAWRENCE RIVER- LAKE ONTARIO OPEN WATERS FROM THE NIAGARA RIVER TO HAMLIN BEACH- LAKE ONTARIO OPEN WATERS FROM HAMLIN BEACH TO SODUS BAY- LAKE ONTARIO OPEN WATERS FROM SODUS BAY TO MEXICO BAY- LAKE ONTARIO OPEN WATERS FROM MEXICO BAY TO THE SAINT LAWRENCE RIVER- SAINT LAWRENCE RIVER FROM CAPE VINCENT TO OGDENSBURG- SAINT LAWRENCE RIVER FROM OGDENSBURG TO SAINT REGIS- 507 AM EDT MON MAY 23 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF LAKE ERIE...LAKE ONTARIO AND SAINT LAWRENCE RIVER. .DAY ONE...TODAY AND TONIGHT. THE STORM PREDICTION CENTER HAS PLACED THE LOWER GREAT LAKES REGION IN A SLIGHT RISK FOR SEVERE THUNDERSTORMS TODAY. SCATTERED TO NUMEROUS THUNDERSTORMS ARE EXPECTED TO DEVELOP ACROSS THE AREA DURING THE AFTERNOON AND EVENING...SOME OF WHICH COULD BE STRONG TO SEVERE WITH THE PRIMARY THREAT COMING IN THE FORM OF STRONG WIND GUSTS AND HAIL. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY. THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME. THIS PRODUCT...ALONG WITH OTHER WATCHES...WARNINGS...ADVISORIES... AND STATEMENTS ISSUED BY THE NATIONAL WEATHER SERVICE OFFICE IN BUFFALO CAN BE FOUND ON THE INTERNET AT HTTP://WWW.WEATHER.GOV/BUF JJR
In the hours before
Special weather statement, May 23, 8:19 PM EDT, 2 hours 37 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BUFFALO NY 819 PM EDT MON MAY 23 2011 NYZ019-240230- CHAUTAUQUA- INCLUDING THE CITY OF...JAMESTOWN 819 PM EDT MON MAY 23 2011 ...STRONG THUNDERSTORMS MOVING INTO CHAUTAUQUA COUNTY... AN AREA OF STRONG THUNDERSTORMS IS MOVING INTO CHAUTAUQUA COUNTY FROM ERIE COUNTY PENNSYLVANIA. THESE STRONG THUNDERSTORMS WILL PRODUCE GUSTY WINDS...SMALL HAIL...FREQUENT LIGHTNING AND HEAVY DOWNPOURS. THE STRONGEST STORM IS EXPECTED TO REACH JAMESTOWN AROUND 840 PM. IF YOU SEE LIGHTNING OR HEAR THUNDER...GO IN A STURDY BUILDING IMMEDIATELY. DO NOT DRIVE INTO AREAS WHERE WATER COVERS THE ROAD...IT IS DIFFICULT TO DETERMINE HOW DEEP THE WATER IS. DPK
Special weather statement, May 23, 9:42 PM EDT, 1 hour 14 minutes before
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</html>The office that day
Everything else NWS Buffalo, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 23, 8:23 PM EDT | Severe Thunderstorm Warning | BUF | Chautauqua | 37 min |
| May 23, 8:45 PM EDT | Special Marine Warning | BUF | 30 min | |
| May 23, 8:54 PM EDT | Tornado Warning | BUF | Chautauqua | 36 min |
| May 23, 9:14 PM EDT | Severe Thunderstorm Warning | BUF | Erie | 17 min |
| May 23, 9:24 PM EDT | Flash Flood Warning | BUF | Chautauqua | 3 hr |
| May 23, 9:59 PM EDT | Flash Flood Warning | BUF | Cattaraugus, Chautauqua | 3 hr |
| May 23, 10:05 PM EDT | Severe Thunderstorm Warning | BUF | Allegany, Cattaraugus | 25 min |
| May 23, 10:30 PM EDT | Severe Thunderstorm Warning | BUF | Allegany, Cattaraugus | 45 min |
| May 23, 11:09 PM EDT | Flash Flood Warning | BUF | Allegany, Cattaraugus, Wyoming | 3 hr |
| May 23, 11:13 PM EDT | Severe Thunderstorm Warning | BUF | Allegany | 17 min |
| May 24, 9:27 AM EDT | Small Craft Advisory | BUF | 4 hr |
Nearby
Areal Flood Advisories in New York, 2011Every areal flood advisory in 2011
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.