Alert archive / New York / Flash Flood Warnings in 2015
Flash Flood Warning 20, NWS Buffalo, NY
NWS Buffalo, NY issued this flash flood warning at Jul 18, 2015, 4:16 AM EDT for 4 counties in New York. It was in force for 3 hr. 2 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
- Jul 18, 2015, 4:16 AM EDT (08:16 UTC)
- Expired
- Jul 18, 2015, 7:15 AM EDT
- In force
- 3 hr
- Issued by
- NWS Buffalo, NY
- Area
- Storm-based polygon
- Flood severity
- None
Counties Genesee County, NY, Monroe County, NY, Orleans County, NY, Wayne County, NY
The radar
The Buffalo radar (KBUF), 88 km from the middle of the area, began a volume at 08:17 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 |
|---|---|---|---|
| Jul 18, 6:30 AM EDT | HEAVY RAIN 1.24 | 4 E Rochester, NY | 24 HOUR RAINFALL. |
| Jul 18, 7:00 AM EDT | HEAVY RAIN 2.24 | 5 Wnw Rochester, NY | 24 HOUR RAINFALL. |
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 00:00Z, 8.3 hours before the alert went out and 86 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
- 117 J/kg
- Mixed-layer CIN
- -44 J/kg
- Mixed-layer LCL
- 1119 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 212 m²/s²
- 0-3 km storm-relative helicity
- 322 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
The text
As transmitted, in the capitals the NWS used until 2016.
114
WGUS51 KBUF 180816
FFWBUF
NYC037-055-073-117-181115-
/O.NEW.KBUF.FF.W.0020.150718T0816Z-150718T1115Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
416 AM EDT SAT JUL 18 2015
THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A
* FLASH FLOOD WARNING FOR...
NORTHEASTERN GENESEE COUNTY IN WESTERN NEW YORK...
WEST CENTRAL WAYNE COUNTY IN WESTERN NEW YORK...
MONROE COUNTY IN WESTERN NEW YORK...
SOUTHEASTERN ORLEANS COUNTY IN WESTERN NEW YORK...
* UNTIL 715 AM EDT
* AT 415 AM EDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING
HEAVY RAIN ACROSS THE WARNED AREA. UP TO TWO INCHES OF RAIN HAVE
ALREADY FALLEN. FLASH FLOODING IS EXPECTED TO BEGIN SHORTLY.
* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
ROCHESTER...GREECE...IRONDEQUOIT...CHILI...BROCKPORT...EAST
ROCHESTER...ALBION AND HILTON.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
MOVE TO HIGHER GROUND NOW. ACT QUICKLY TO PROTECT YOUR LIFE.
&&
LAT...LON 4326 7828 4334 7775 4332 7771 4332 7773
4331 7771 4331 7769 4328 7766 4323 7755
4327 7742 4328 7733 4309 7738 4302 7817
$$
HIBBERT2 follow-up statements
539
WGUS71 KBUF 180932
FFSBUF
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
532 AM EDT SAT JUL 18 2015
NYC037-117-180940-
/O.CAN.KBUF.FF.W.0020.000000T0000Z-150718T1115Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
GENESEE NY-WAYNE NY-
532 AM EDT SAT JUL 18 2015
...THE FLASH FLOOD WARNING FOR NORTHEASTERN GENESEE AND WEST CENTRAL
WAYNE COUNTIES IS CANCELLED...
THE HEAVY RAIN HAS ENDED...AND FLOODING IS NO LONGER EXPECTED TO POSE
A THREAT. PLEASE CONTINUE TO HEED ALL ROAD CLOSURES.
LAT...LON 4313 7791 4313 7822 4326 7828 4334 7776
4323 7755 4327 7742 4309 7739 4304 7795
$$
NYC055-073-181115-
/O.CON.KBUF.FF.W.0020.000000T0000Z-150718T1115Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MONROE NY-ORLEANS NY-
532 AM EDT SAT JUL 18 2015
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 715 AM EDT FOR
MONROE AND SOUTHEASTERN ORLEANS COUNTIES...
AT 530 AM EDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING
HEAVY RAIN ACROSS THE WARNED AREA. MORE THAN TWO INCHES OF RAIN HAVE
ALREADY FALLEN. NUMEROUS FLOODING ISSUES ARE OCCURRING.
SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
ROCHESTER...GREECE...IRONDEQUOIT...CHILI...BROCKPORT...EAST
ROCHESTER...ALBION AND HILTON.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
MOVE TO HIGHER GROUND NOW. ACT QUICKLY TO PROTECT YOUR LIFE.
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING.
&&
LAT...LON 4313 7791 4313 7822 4326 7828 4334 7776
4323 7755 4327 7742 4309 7739 4304 7795
$$
HIBBERT176
WGUS71 KBUF 181111
FFSBUF
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
711 AM EDT SAT JUL 18 2015
NYC055-073-181118-
/O.EXP.KBUF.FF.W.0020.000000T0000Z-150718T1115Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MONROE NY-ORLEANS NY-
711 AM EDT SAT JUL 18 2015
...THE FLASH FLOOD WARNING FOR MONROE AND SOUTHEASTERN ORLEANS
COUNTIES WILL EXPIRE AT 715 AM EDT...
THE HEAVY RAIN HAS ENDED ACROSS MONROE AND ORLEANS COUNTIES. RAPID
WATER RISES HAVE SLOWED...HOWEVER THERE MAY STILL BE AREAS WHERE
HIGH WATER REMAINS IN PLACE FOR A FEW MORE HOURS. HEED ANY ROAD
CLOSURES.
LAT...LON 4313 7791 4313 7822 4326 7828 4334 7776
4323 7755 4327 7742 4309 7739 4304 7795
$$
TMAThe office that day
Everything else NWS Buffalo, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 18, 3:37 AM EDT | Special Weather Statement | BUF | Genesee, Monroe | 38 min |
| Jul 18, 5:03 AM EDT | Special Weather Statement | BUF | Ontario | 42 min |
| Jul 18, 5:35 AM EDT | Flash Flood Warning | BUF | Livingston, Monroe, Ontario | 3 hr |
| Jul 18, 6:25 AM EDT | Special Weather Statement | BUF | Livingston | 35 min |
| Jul 18, 7:00 AM EDT | Flash Flood Warning | BUF | Ontario | 3 hr |
| Jul 18, 3:43 PM EDT | Flash Flood Watch | BUF | Allegany, Cattaraugus, Cayuga, Chautauqua, Erie, Genesee and 8 more | 29 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.