Alert archive / New York / Areal Flood Advisories in 2011
Areal Flood Advisory 14, NWS Buffalo, NY
NWS Buffalo, NY issued this areal flood advisory at Apr 25, 2011, 8:36 PM EDT for Chautauqua County, Erie County, Genesee County, New York. It was in force for 6 hr.
The area
The counties it named.
The facts
- Issued
- Apr 25, 2011, 8:36 PM EDT (00:36 UTC)
- Expired
- Apr 26, 2011, 2:13 AM EDT
- In force
- 6 hr
- Issued by
- NWS Buffalo, NY
- Area
- Storm-based polygon
Counties Chautauqua County, NY, Erie County, NY, Genesee County, NY
The radar
The Buffalo radar (KBUF), 29 km from the middle of the area, began a volume at 00:35 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, 0.6 hours before the alert went out and 28 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 479 m above ground
- 0-6 km bulk shear
- 72 kt
- 0-1 km storm-relative helicity
- 159 m²/s²
- 0-3 km storm-relative helicity
- 337 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 Apr 25, 7:36 PM EDT, 1 hour earlier.
Area forecast discussion, Apr 25, 7:36 PM EDT, 1 hour before
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</html>Hazardous weather outlook, Apr 25, 3:48 PM EDT, 4 hours 48 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE BUFFALO NY 348 PM EDT MON APR 25 2011 NYZ005>008-262000- NORTHERN CAYUGA-OSWEGO-JEFFERSON-LEWIS- 348 PM EDT MON APR 25 2011 ...FLOOD WATCH IN EFFECT FROM 8 PM EDT THIS EVENING THROUGH TUESDAY MORNING... THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL NEW YORK. .DAY ONE...THIS AFTERNOON AND TONIGHT. PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS. FLOOD WATCH. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY. PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS. WHILE STORMS WILL BE FAIRLY SCATTERED IN NATURE ON TUESDAY AND WEDNESDAY...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS...AND SOME ADDITIONAL FLOODING. A STRONG DISTURBANCE WILL MOVE THROUGH WEDNESDAY NIGHT...INCREASING THE CHANCE FOR SEVERE THUNDERSTORMS AND LOCALLY HEAVY RAIN. .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 NYZ001>004-010>014-019>021-085-262000- NIAGARA-ORLEANS-MONROE-WAYNE-NORTHERN ERIE-GENESEE-WYOMING- LIVINGSTON-ONTARIO-CHAUTAUQUA-CATTARAUGUS-ALLEGANY-SOUTHERN ERIE- 348 PM EDT MON APR 25 2011 ...FLOOD WATCH IN EFFECT THROUGH TUESDAY MORNING... THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN NEW YORK. .DAY ONE...THIS AFTERNOON AND TONIGHT. PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS. FLOOD WATCH. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY. PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS. WHILE STORMS WILL BE FAIRLY SCATTERED IN NATURE ON TUESDAY AND WEDNESDAY...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS...AND SOME ADDITIONAL FLOODING. A STRONG DISTURBANCE WILL MOVE THROUGH WEDNESDAY NIGHT...INCREASING THE CHANCE FOR SEVERE THUNDERSTORMS AND LOCALLY HEAVY RAIN. .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-SLZ022-024-262000- 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- 348 PM EDT MON APR 25 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF LAKE ERIE...LAKE ONTARIO AND SAINT LAWRENCE RIVER. .DAY ONE...THIS AFTERNOON AND TONIGHT. THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY. WHILE STORMS WILL BE FAIRLY SCATTERED IN NATURE ON TUESDAY AND WEDNESDAY...THERE IS A SLIGHT RISK OF STRONG THUNDERSTORMS. A STRONG DISTURBANCE WILL MOVE THROUGH WEDNESDAY NIGHT...INCREASING THE CHANCE FOR STRONG THUNDERSTORMS WITH GUSTY WINDS. .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 APFFEL
In the hours before
Special weather statement, Apr 25, 7:04 PM EDT, 1 hour 32 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
704 PM EDT MON APR 25 2011
NYZ010-012-019-020-085-260000-
CATTARAUGUS NY-CHAUTAUQUA NY-ERIE NY-WYOMING NY-
704 PM EDT MON APR 25 2011
...STRONG THUNDERSTORM MOVING INTO THE AREA...
* AT 658 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF STRONG THUNDERSTORMS PRODUCING STRONG GUSTY WINDS...AND VERY
HEAVY RAIN. THIS LINE OF STORMS STRETCHED FROM NEAR WESTFIELD
NORTHWARD INTO EASTERN LAKE ERIE...AND WAS MOVING EAST AT 45 MPH.
* SOME LOCATIONS AFFECTED BY THE STRONG THUNDERSTORM MAY INCLUDE...
HAMBURG...
LACKAWANNA...
EAST AURORA...
THIS LINE OF STORMS HAS THE POTENTIAL TO PRODUCE WIND GUSTS TO 55
MPH AND VERY HEAVY RAIN...AND COULD CAUSE LOCALIZED FLOODING OF
ROADS AND POOR DRAINAGE AREAS.
LAT...LON 4233 7964 4242 7946 4250 7936 4256 7916
4269 7907 4277 7888 4282 7887 4288 7848
4222 7850 4222 7969
JJRSpecial weather statement, Apr 25, 7:10 PM EDT, 1 hour 26 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
710 PM EDT MON APR 25 2011
NYZ021-260015-
ALLEGANY NY-
710 PM EDT MON APR 25 2011
...STRONG THUNDERSTORM MOVING INTO THE AREA...
* AT 707 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM CAPABLE OF PRODUCING SMALL HAIL...STRONG GUSTY
WINDS...AND VERY HEAVY RAIN. THIS STORM WAS LOCATED 24 MILES
SOUTHWEST OF WELLSVILLE...AND MOVING NORTHEAST AT 45 MPH.
* SOME LOCATIONS AFFECTED BY THE STRONG THUNDERSTORM MAY INCLUDE...
WELLSVILLE...
THIS STORM HAS THE POTENTIAL TO BECOME SEVERE AND PRODUCE LARGE HAIL
AND/OR DAMAGING WINDS.
LAT...LON 4200 7831 4234 7774 4233 7773 4201 7774
4199 7779
JJRLocal storm report, Apr 25, 8:20 PM EDT, 16 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 |
|---|---|---|---|---|
| Apr 26, 3:07 AM EDT | River Flood Warning | BUF | Erie, Wyoming | 3 hr |
| Apr 26, 3:07 AM EDT | River Flood Warning | BUF | Erie | 3 hr |
| Apr 26, 3:41 AM EDT | Small Craft Advisory | BUF | 18 hr | |
| Apr 26, 12:59 PM EDT | Special Weather Statement | BUF | Allegany | 31 min |
| Apr 26, 2:00 PM EDT | Severe Thunderstorm Warning | BUF | Ontario | 45 min |
| Apr 26, 2:26 PM EDT | Severe Thunderstorm Warning | BUF | Cayuga, Ontario, Oswego, Wayne | 49 min |
| Apr 26, 3:53 PM EDT | Special Weather Statement | BUF | Oswego | 52 min |
| Apr 26, 4:43 PM EDT | Severe Thunderstorm Warning | BUF | Genesee, Monroe, Orleans | 47 min |
| Apr 26, 4:44 PM EDT | Severe Thunderstorm Warning | BUF | Monroe | 46 min |
| Apr 26, 4:50 PM EDT | Severe Thunderstorm Warning | BUF | Cayuga, Oswego | 55 min |
| Apr 26, 4:53 PM EDT | Special Marine Warning | BUF | 58 min | |
| Apr 26, 5:05 PM EDT | Severe Thunderstorm Warning | BUF | Lewis, Oswego | 40 min |
| Apr 26, 5:27 PM EDT | Flash Flood Warning | BUF | Allegany | 5 hr |
| Apr 26, 5:40 PM EDT | Severe Thunderstorm Warning | BUF | Cayuga, Ontario, Wayne | 50 min |
| Apr 26, 5:46 PM EDT | Special Weather Statement | BUF | Lewis | 59 min |
| Apr 26, 5:49 PM EDT | Special Marine Warning | BUF | 86 min | |
| Apr 26, 6:14 PM EDT | Special Weather Statement | BUF | Allegany | 61 min |
| Apr 26, 6:19 PM EDT | Areal Flood Advisory | BUF | Ontario, Wayne | 2 hr |
| Apr 26, 6:22 PM EDT | Severe Thunderstorm Warning | BUF | Allegany | 38 min |
| Apr 26, 7:10 PM EDT | Flash Flood Warning | BUF | Ontario, Wayne | 3 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.