Alert archive / New York / Areal Flood Advisories in 2012
Areal Flood Advisory 18, NWS Buffalo, NY
NWS Buffalo, NY issued this areal flood advisory at Sep 4, 2012, 9:31 PM EDT for Jefferson County, Lewis County, New York. It was in force for 2 hr.
The area
The counties it named.
The facts
- Issued
- Sep 4, 2012, 9:31 PM EDT (01:31 UTC)
- Expired
- Sep 4, 2012, 11:51 PM EDT
- In force
- 2 hr
- Issued by
- NWS Buffalo, NY
- Area
- Storm-based polygon
Counties Jefferson County, NY, Lewis County, NY
The radar
The Ft Drum radar (KTYX), 16 km from the middle of the area, began a volume at 01:30 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
Brookhaven, NY (KOKX), launched 00:00Z, 1.5 hours before the alert went out and 412 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
- 1118 J/kg
- Mixed-layer CIN
- -9 J/kg
- Mixed-layer LCL
- 573 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 89 m²/s²
- 0-3 km storm-relative helicity
- 120 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 Sep 4, 8:00 PM EDT, 1 hour 31 minutes earlier.
Area forecast discussion, Sep 4, 8:00 PM EDT, 1 hour 31 minutes before
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</html>Hazardous weather outlook, Sep 4, 9:14 PM EDT, 17 minutes before
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</html>In the hours before
Special weather statement, Sep 4, 4:34 PM EDT, 4 hours 57 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BUFFALO NY 434 PM EDT TUE SEP 4 2012 NYZ001-042100- ERIE NY 434 PM EDT TUE SEP 4 2012 ...HEAVY RAIN MOVING ACROSS NORTHERN ERIE COUNTY... * AT 427 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED AN AREA OF HEAVY RAIN SHOWERS NORTH AND EAST OF METRO BUFFALO NEAR THE AIRPORT AND MOVING EAST AT 25 MPH. * SOME LOCATIONS AFFECTED BY THE HEAVY RAIN INCLUDE... CLARENCE... AMHERST... WILLIAMSVILLE... LANCASTER... AKRON... THESE SHOWERS ARE PRODUCING HEAVY DOWNPOURS WITH RATES AN INCH OR TWO PER HOUR. THE HEAVY RAIN COULD CAUSE LOCALIZED FLOODING OF ROADS AND POOR DRAINAGE AREAS. LAT...LON 4310 7898 4308 7844 4293 7846 4285 7869 SMITH
Special weather statement, Sep 4, 5:09 PM EDT, 4 hours 22 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
509 PM EDT TUE SEP 4 2012
NYZ003-011>014-020-021-042130-
ALLEGANY NY-CATTARAUGUS NY-GENESEE NY-LIVINGSTON NY-MONROE NY-ONTARIO
NY-WYOMING NY-
509 PM EDT TUE SEP 4 2012
...HEAVY SHOWERS MOVING ACROSS THE GENESEE VALLEY...
* AT 505 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
BAND OF HEAVY RAIN SHOWERS MOVING ACROSS THE GENESEE VALLEY.
THESE SHOWERS ARE MOVING EAST AT 35 MPH.
* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO LE
ROY...SONYEA...GROVELAND...DANSVILLE...GENESEO...CALEDONIA...
CONESUS...AVON...SPRINGWATER...LIVONIA...HEMLOCK...HONEOYE...
CANADICE...LIMA AND HONEOYE FALLS.
THE HEAVY RAINFALL COULD CAUSE LOCALIZED FLOODING OF ROADS AND
POOR DRAINAGE AREAS.
LAT...LON 4262 7842 4299 7799 4299 7753 4257 7747
4257 7765 4253 7767 4253 7771 4248 7771
4239 7840
SMITHSpecial weather statement, Sep 4, 5:35 PM EDT, 3 hours 56 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
535 PM EDT TUE SEP 4 2012
NYZ006>008-042245-
JEFFERSON NY-LEWIS NY-OSWEGO NY-
535 PM EDT TUE SEP 4 2012
...AN AREA OF HEAVY RAIN...
* AT 522 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
A LARGE AREA OF HEAVY RAIN WITH EMBEDDED THUNDERSTORMS TO THE WEST
OF THE EASTERN LAKE ONTARIO REGION AND BEGINNING TO MOVING INTO
OSWEGO AND JEFFERSON COUNTIES THIS EVENING. THIS AREA OF HEAVY RAIN
WILL BE CAPABLE OF PRODUCING RAINFALL AMOUNTS OF 1 TO 3 INCHES OF
RAINFALL THROUGH 7 PM.
* LOCALLY HEAVY RAINFALL WILL CAUSE POUNDING OF WATER ACROSS AREA
ROADWAYS AND POOR DRAINAGE FLOODING. MOTORIST SHOULD BE PREPARED AND
EXPECTED HEAVY RAIN PRODUCING POOR VISIBILITIES AND AREAS OF
FLOODING.
* SOME LOCATIONS THAT COULD BE AFFECTED BY THIS AREA OF HEAVY RAIN
MAY INCLUDE...
WATERTOWN...
FORT DRUM...
TUG HILL...
ADAMS...
FULTON...
PARISH...
LAT...LON 4342 7552 4348 7580 4315 7589 4326 7620
4323 7619 4322 7619 4326 7660 4342 7660
4353 7640 4354 7623 4378 7623 4386 7631
4392 7614 4398 7622 4395 7628 4410 7638
4429 7609 4441 7584 4410 7516 4362 7510Special weather statement, Sep 4, 5:39 PM EDT, 3 hours 52 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
539 PM EDT TUE SEP 4 2012
NYZ003-012>014-021-042215-
ALLEGANY NY-LIVINGSTON NY-MONROE NY-ONTARIO NY-WYOMING NY-
539 PM EDT TUE SEP 4 2012
...LINE OF HEAVY THUNDERSTORMS MOVING ACROSS THE GENESSE VALLEY...
* AT 537 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
A LINE OF STRONG THUNDERSTORMS CAPABLE OF PRODUCING GUSTY
WINDS...AND VERY HEAVY RAIN. THESE STORMS WERE LOCATED ALONG A
LINE EXTENDING FROM LIMA TO MOUNT MORRIS TO PORTAGEVILLE...AND
MOVING EAST TO SOUTHEAST AT 25 MPH.
* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
LIVONIA...FILLMORE...SONYEA...NUNDA...HEMLOCK...CONESUS...
GROVELAND...HONEOYE...CANADICE...OSSIAN CENTER...DANSVILLE AND
SPRINGWATER.
THESE STORMS HAVE THE POTENTIAL TO PRODUCE VERY HEAVY RAIN...AND
COULD CAUSE LOCALIZED FLOODING OF ROADS AND POOR DRAINAGE AREAS.
LAT...LON 4249 7830 4299 7785 4299 7752 4258 7747
4257 7751 4257 7765 4253 7767 4253 7771
4248 7772 4244 7803
SMITHSpecial weather statement, Sep 4, 5:43 PM EDT, 3 hours 48 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
543 PM EDT TUE SEP 4 2012
NYZ019>021-042300-
ALLEGANY NY-CATTARAUGUS NY-CHAUTAUQUA NY-
543 PM EDT TUE SEP 4 2012
...THUNDERSTORMS WITH HEAVY RAIN EXPECTED THROUGH EARLY THIS
EVENING...
* AT 532 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
A LINE OF STRONG THUNDERSTORMS THAT WERE PRODUCING VERY HEAVY RAIN
OVER PARTS OF THE SOUTHERN TIER. THESE STORMS WERE LOCATED ALONG A
LINE EXTENDING FROM 15 MILES NORTHEAST OF HOUGHTON TO 25 MILES
SOUTHWEST OF CHAUTAUQUA INSTITUTE...AND MOVING SOUTHEAST AT 20 MPH.
THE SHOWERS AND THUNDERSTORMS WILL PRODUCE A HALF INCH OF RAIN FOR
THE BULK OF THE SOUTHERN TIER...WITH AS MUCH AS 2 INCHES OF RAIN
POSSIBLE BY 8 PM WITHIN THE HEAVIER STORMS.
LAT...LON 4199 7958 4200 7962 4222 7971 4251 7850
4246 7771 4199 7775
RSHSpecial weather statement, Sep 4, 6:26 PM EDT, 3 hours 5 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
626 PM EDT TUE SEP 4 2012
NYZ012>014-021-042300-
ALLEGANY NY-LIVINGSTON NY-ONTARIO NY-WYOMING NY-
626 PM EDT TUE SEP 4 2012
...A LINE OF HEAVY THUNDERSTORMS MOVING ACROSS SOUTHERN GENESEE
VALLEY...
* AT 620 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
A LINE OF STRONG THUNDERSTORMS CAPABLE OF PRODUCING GUSTY
WINDS...AND VERY HEAVY RAIN. THESE STORMS WERE LOCATED ALONG A
LINE EXTENDING FROM HONEOYE SOUTHWEST ACROSS SOUTHERN LIVINGSTON
COUNTY TO NORTHERN ALLEGHENY COUNTY... AND MOVING EAST TO SOUTHEAST
AT 25 MPH.
* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
SPRINGWATER...OSSIAN CENTER...DANSVILLE...CANASERAGA...BIRDSALL...
NAPLES...ALMOND AND ALFRED.
FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE
INDOORS IMMEDIATELY!
THESE STORMS ARE PRODUCING VERY HEAVY RAIN...AND COULD CAUSE
LOCALIZED FLOODING OF ROADS AND POOR DRAINAGE AREAS.
LAT...LON 4247 7820 4283 7743 4275 7732 4266 7736
4258 7735 4257 7737 4257 7765 4253 7767
4253 7771 4212 7774
SMITHNearby
Areal Flood Advisories in New York, 2012Every areal flood advisory in 2012
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.