Alert archive / New York / Flash Flood Warnings in 2015
Flash Flood Warning 3, NWS Buffalo, NY
NWS Buffalo, NY issued this flash flood warning at May 10, 2015, 3:58 PM EDT for Livingston County, Monroe County, New York. It was in force for 3 hr. 4 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
- May 10, 2015, 3:58 PM EDT (19:58 UTC)
- Expired
- May 10, 2015, 7:00 PM EDT
- In force
- 3 hr
- Issued by
- NWS Buffalo, NY
- Area
- Storm-based polygon
- Flood severity
- None
Counties Livingston County, NY, Monroe County, NY
The radar
The Buffalo radar (KBUF), 86 km from the middle of the area, began a volume at 19:57 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 |
|---|---|---|---|
| May 10, 4:31 PM EDT | FLASH FLOOD | 1 Sse Avon, NY | POLE BRIDGE RD AND LAKE RD CLOSED. |
| May 10, 4:35 PM EDT | FLASH FLOOD | 1 Sw Avon, NY | REPORT OF RESCUES FOR PEOPLE TRAPPED IN STALLED CARS IN FLOODED AREAS. |
| May 10, 5:25 PM EDT | FLASH FLOOD | Avon, NY | FLOODING AT SAINT AGNES SCHOOL |
| May 10, 5:30 PM EDT | FLASH FLOOD | 1 Sw Ashantee, NY | BOYD RD FLOODED AND IMPASSABLE FROM A SMALL CREEK |
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, 8.0 hours before the alert went out and 83 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
- 13 J/kg
- Mixed-layer CIN
- -186 J/kg
- Mixed-layer LCL
- 1320 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 85 m²/s²
- 0-3 km storm-relative helicity
- 105 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
788
WGUS51 KBUF 101958
FFWBUF
NYC051-055-102300-
/O.NEW.KBUF.FF.W.0003.150510T1958Z-150510T2300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
358 PM EDT SUN MAY 10 2015
THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A
* FLASH FLOOD WARNING FOR...
NORTHERN LIVINGSTON COUNTY IN WESTERN NEW YORK...
SOUTH CENTRAL MONROE COUNTY IN WESTERN NEW YORK...
* UNTIL 700 PM EDT
* AT 354 PM EDT...DOPPLER RADAR INDICATED A THUNDERSTORM PRODUCING
VERY HEAVY RAIN ACROSS NORTHERN LIVINGSTON COUNTY NEAR AVON
EXTENDING NORTHEAST INTO MONROE COUNTY NEAR RUSH. UP TO TWO INCHES
OF RAIN HAVE ALREADY FALLEN WITH ADDITIONAL AMOUNTS OF UP TO AN
INCH. FLASH FLOODING IS EXPECTED TO BEGIN SHORTLY.
* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
AVON...PIFFARD...HONEOYE FALLS...LIMA...MENDON...RUSH AND YORK.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TURN AROUND...DONT DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES. FLASH FLOODING CAN RESULT IN RAPID RISES
IN SMALL STREAMS AND FLOODING IN URBAN AREAS.
&&
LAT...LON 4276 7794 4289 7791 4309 7757 4300 7748
4298 7749 4294 7753 4294 7758 4292 7756
4287 7762 4276 7785
$$
HITCHCOCK2 follow-up statements
507
WGUS71 KBUF 102050
FFSBUF
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
450 PM EDT SUN MAY 10 2015
NYC051-055-102300-
/O.CON.KBUF.FF.W.0003.000000T0000Z-150510T2300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
LIVINGSTON NY-MONROE NY-
450 PM EDT SUN MAY 10 2015
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 700 PM EDT FOR
NORTHERN LIVINGSTON AND SOUTH CENTRAL MONROE COUNTIES...
AT 443 PM EDT...TRAINED WEATHER SPOTTERS REPORTED FLASH FLOODING IN
AVON. AROUND THREE INCHES OF RAIN HAS ALREADY FALLEN. FLASH FLOODING
IS OCCURRING WITH SEVERAL ROADS CLOSED IN AVON AND VICINITY AREAS.
FLOODING WILL CONTINUE EVEN AFTER THE RAINFALL HAS ENDED.
ADDITIONAL RAINFALL AMOUNTS OF AROUND A QUARTER OF AN INCH IS
EXPECTED THROUGH EARLY EVENING IN THE WARNED AREA.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TURN AROUND...DONT DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.
&&
LAT...LON 4276 7794 4289 7791 4309 7757 4300 7748
4298 7749 4294 7753 4294 7758 4292 7756
4287 7762 4276 7785
$$
THOMAS573
WGUS71 KBUF 102258
FFSBUF
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
658 PM EDT SUN MAY 10 2015
NYC051-055-102305-
/O.EXP.KBUF.FF.W.0003.000000T0000Z-150510T2300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
LIVINGSTON NY-MONROE NY-
658 PM EDT SUN MAY 10 2015
...THE FLASH FLOOD WARNING FOR NORTHERN LIVINGSTON AND SOUTH CENTRAL
MONROE COUNTIES WILL EXPIRE AT 700 PM EDT...
WHILE THE HEAVY RAIN FROM RECENT THUNDERSTORMS HAS ENDED...THE FLASH
FLOOD WARNING WILL BE TRANSITIONED TO A LOCALIZED FLOOD WARNING FOR
CONTINUED STORM RUNOFF.
LAT...LON 4276 7794 4289 7791 4309 7757 4300 7748
4298 7749 4294 7753 4294 7758 4292 7756
4287 7762 4276 7785
$$
THOMASThe office that day
Everything else NWS Buffalo, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 10, 3:10 PM EDT | Special Weather Statement | BUF | Genesee | 35 min |
| May 10, 3:28 PM EDT | Special Weather Statement | BUF | Ontario | 47 min |
| May 10, 4:14 PM EDT | Special Weather Statement | BUF | Wayne | 46 min |
| May 10, 4:45 PM EDT | Severe Thunderstorm Warning | BUF | Ontario | 30 min |
| May 10, 6:04 PM EDT | Special Weather Statement | BUF | Chautauqua | 41 min |
| May 10, 6:54 PM EDT | Areal Flood Warning | BUF | Livingston | 3 hr |
Nearby
Flash Flood Warnings in New York, 2015Every flash flood warning in 2015
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.