Alert archive / New York / Flash Flood Warnings in 2012
Flash Flood Warning 5, NWS Buffalo, NY
NWS Buffalo, NY issued this flash flood warning at Aug 5, 2012, 3:57 PM EDT for Jefferson County, New York. It was in force for 111 min. 1 report 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
- Aug 5, 2012, 3:57 PM EDT (19:57 UTC)
- Expired
- Aug 5, 2012, 5:48 PM EDT
- In force
- 111 min
- Issued by
- NWS Buffalo, NY
- Area
- Storm-based polygon
- Flood severity
- None
County Jefferson County, NY
The radar
The Ft Drum radar (KTYX), 39 km from the middle of the area, began a volume at 19:59 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 |
|---|---|---|---|
| Aug 5, 4:22 PM EDT | FLASH FLOOD | Brownville, NY | SEVERAL ROADS FLOODED OVER IN TOWN |
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, 8.0 hours before the alert went out and 229 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
- 520 J/kg
- Mixed-layer CIN
- -57 J/kg
- Mixed-layer LCL
- 694 m above ground
- 0-6 km bulk shear
- 11 kt
- 0-1 km storm-relative helicity
- 119 m²/s²
- 0-3 km storm-relative helicity
- 154 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.4
The text
As transmitted, in the capitals the NWS used until 2016.
496 WGUS51 KBUF 051957 FFWBUF NYC045-052300- /O.NEW.KBUF.FF.W.0005.120805T1957Z-120805T2300Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE BUFFALO NY 357 PM EDT SUN AUG 5 2012 THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A * FLASH FLOOD WARNING FOR... CENTRAL JEFFERSON COUNTY IN CENTRAL NEW YORK... THIS INCLUDES THE CITY OF WATERTOWN... * UNTIL 700 PM EDT * AT 344 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED RAIN FALLING AT THE RATE OF TWO INCHES PER HOUR OVER THE WARNED AREA...WHICH INCLUDES WATERTOWN. PRECAUTIONARY/PREPAREDNESS ACTIONS... EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL CREEKS AND STREAMS...URBAN AREAS...HIGHWAYS...STREETS AND UNDERPASSES AS WELL AS OTHER DRAINAGE AREAS AND LOW LYING SPOTS. A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING. IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY. RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY AUTOMOBILE. && LAT...LON 4410 7589 4392 7589 4392 7614 4410 7614 $$ TJP
2 follow-up statements
678 WGUS71 KBUF 052100 FFSBUF FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE BUFFALO NY 500 PM EDT SUN AUG 5 2012 NYC045-052300- /O.CON.KBUF.FF.W.0005.000000T0000Z-120805T2300Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ JEFFERSON NY- 500 PM EDT SUN AUG 5 2012 ...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 700 PM EDT FOR CENTRAL JEFFERSON COUNTY... AT 444 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE SHOWERS AND THUNDERSTORMS PUSHING EAST ACROSS THE AREA. WHILE THE HEAVIEST RAIN HAS ENDED...UP TO ANOTHER HALF INCH OF RAIN IS POSSIBLE THROUGH 600 PM EDT. THIS ADDITIONAL RAINFALL COULD STILL CAUSE FLOODING ACROSS AREAS THAT HAVE ALREADY RECEIVED A LITTLE OVER TWO INCHES OF RAIN IN THE PAST COUPLE OF HOURS. PRECAUTIONARY/PREPAREDNESS ACTIONS... EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL CREEKS AND STREAMS...URBAN AREAS...HIGHWAYS...STREETS AND UNDERPASSES AS WELL AS OTHER DRAINAGE AREAS AND LOW LYING SPOTS. A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING. IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY. RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY AUTOMOBILE. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 700 PM EDT SUNDAY EVENING FOR WESTERN NEW YORK. && LAT...LON 4410 7589 4392 7589 4392 7614 4410 7614 $$ TJP
237 WGUS71 KBUF 052148 FFSBUF FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE BUFFALO NY 548 PM EDT SUN AUG 5 2012 NYC045-052157- /O.CAN.KBUF.FF.W.0005.000000T0000Z-120805T2300Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ JEFFERSON NY- 548 PM EDT SUN AUG 5 2012 ...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR CENTRAL JEFFERSON COUNTY... AT 547 PM EDT NATIONAL WEATHER SERVICE RADAR SHOWED THAT THE THUNDERSTORMS THAT PROMPTED THE WARNING HAVE CLEARED THE AREA...THUS THE FLOOD WARNING HAS BEEN CANCELLED. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 700 PM EDT SUNDAY EVENING FOR WESTERN NEW YORK. LAT...LON 4410 7589 4392 7589 4392 7614 4410 7614 $$ TJP
The office that day
Everything else NWS Buffalo, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 5, 11:53 AM EDT | Special Marine Warning | BUF | 2 hr | |
| Aug 5, 12:55 PM EDT | Severe Thunderstorm Warning | BUF | Cattaraugus, Chautauqua, Erie | 50 min |
| Aug 5, 1:24 PM EDT | Severe Thunderstorm Warning | BUF | Erie | 51 min |
| Aug 5, 1:36 PM EDT | Severe Thunderstorm Warning | BUF | Erie | 39 min |
| Aug 5, 1:56 PM EDT | Severe Thunderstorm Warning | BUF | Monroe | 49 min |
| Aug 5, 2:12 PM EDT | Severe Thunderstorm Warning | BUF | Genesee | 28 min |
| Aug 5, 2:27 PM EDT | Severe Thunderstorm Warning | BUF | Genesee, Livingston, Wyoming | 33 min |
| Aug 5, 2:34 PM EDT | Special Marine Warning | BUF | 56 min | |
| Aug 5, 2:40 PM EDT | Severe Thunderstorm Warning | BUF | Wayne | 50 min |
| Aug 5, 2:44 PM EDT | Severe Thunderstorm Warning | BUF | Monroe | 21 min |
| Aug 5, 2:54 PM EDT | Special Marine Warning | BUF | 96 min | |
| Aug 5, 2:57 PM EDT | Severe Thunderstorm Warning | BUF | Monroe, Ontario | 33 min |
| Aug 5, 3:11 PM EDT | Severe Thunderstorm Warning | BUF | Cayuga, Oswego | 64 min |
| Aug 5, 3:42 PM EDT | Severe Thunderstorm Warning | BUF | Jefferson, Lewis, Oswego | 63 min |
| Aug 5, 3:49 PM EDT | Severe Thunderstorm Warning | BUF | Jefferson | 26 min |
| Aug 5, 4:11 PM EDT | Severe Thunderstorm Warning | BUF | Jefferson, Lewis | 49 min |
| Aug 5, 4:13 PM EDT | Severe Thunderstorm Warning | BUF | Oswego | 32 min |
| Aug 5, 4:32 PM EDT | Areal Flood Advisory | BUF | Jefferson | 77 min |
| Aug 5, 7:04 PM EDT | Special Weather Statement | BUF | Monroe | 56 min |
Nearby
Flash Flood Warnings in New York, 2012Every flash flood warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.