Alert archive / New York / Flash Flood Watches in 2016

Flash Flood Watch 1, NWS Buffalo, NY

August 12, 2016Jefferson County, Lewis County, Oswego County, New York

NWS Buffalo, NY issued this flash flood watch at Aug 12, 2016, 4:41 AM EDT for Jefferson County, Lewis County, Oswego County, New York. It took effect at Aug 13, 2016, 8:00 AM EDT. It was in force for 17 hr.

The area

The counties it named.

The facts

Issued: Aug 12, 2016, 4:41 AM EDT (08:41 UTC)
In effect from: Aug 13, 2016, 8:00 AM EDT
Expired: Aug 14, 2016, 1:28 AM EDT
In force: 17 hr
Issued by: NWS Buffalo, NY
Flood severity: None

Counties Jefferson County, NY, Lewis County, NY, Oswego County, NY

The radar

The Ft Drum radar (KTYX), 18 km from the middle of the area, began a volume at 08:45 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

Albany, NY (KALY), launched 00:00Z, 8.7 hours before the alert went out and 205 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 1524 J/kg
Mixed-layer CIN: -17 J/kg
Mixed-layer LCL: 1207 m above ground
0-6 km bulk shear: 15 kt
0-1 km storm-relative helicity: 30 m²/s²
0-3 km storm-relative helicity: 65 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

658 
WGUS61 KBUF 120841
FFABUF

URGENT - IMMEDIATE BROADCAST REQUESTED
FLOOD WATCH
NATIONAL WEATHER SERVICE BUFFALO NY
441 AM EDT FRI AUG 12 2016

NYZ006>008-121645-
/O.NEW.KBUF.FF.A.0001.160813T1200Z-160814T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
OSWEGO-JEFFERSON-LEWIS-
INCLUDING THE CITIES OF...OSWEGO...WATERTOWN...LOWVILLE
441 AM EDT FRI AUG 12 2016

...FLASH FLOOD WATCH IN EFFECT FROM SATURDAY MORNING THROUGH
SUNDAY MORNING...

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

* FLASH FLOOD WATCH FOR A PORTION OF CENTRAL NEW YORK... 
  INCLUDING THE FOLLOWING JEFFERSON...LEWIS AND ...OSWEGO. 

* FROM SATURDAY MORNING THROUGH SUNDAY MORNING.

* A LOW PRESSURE SYSTEM WILL MOVE FROM THE CENTRAL GREAT LAKES TO
  THE SAINT LAWRENCE VALLEY ALONG A STALLED FRONTAL BOUNDARY
  WITHIN A UNUSUALLY WARM AND MOIST AIRMASS. THIS WILL RESULT IN
  THE DEVELOPMENT OF WIDESPREAD SHOWERS AND THUNDERSTORMS ACROSS
  THE AREA. THESE SHOWERS AND THUNDERSTORMS ARE EXPECTED TO
  PRODUCE PERIODS OF INTENSE RAINFALL THAT MAY RESULT IN
  LOCALIZED FLASH FLOODING ACROSS THE WATCH AREA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLASH FLOOD WATCH MEANS THE THREAT OF FLASH FLOODING EXISTS
ALONG RIVERS AND CREEKS. IF YOU ARE IN THE WATCH AREA YOU SHOULD
MONITOR WEATHER CONDITIONS CLOSELY. BE READY TO MOVE TO HIGHER
GROUND IF FLOODING IS OBSERVED OR A WARNING IS ISSUED. STAY TUNED
TO WEATHER RADIO OR OTHER RADIO AND TV STATIONS FOR FURTHER
UPDATES.

&&

$$

WOOD

6 follow-up statements

593 
WGUS61 KBUF 121346
FFABUF

FLOOD WATCH
NATIONAL WEATHER SERVICE BUFFALO NY
946 AM EDT FRI AUG 12 2016

NYZ006>008-122215-
/O.CON.KBUF.FF.A.0001.160813T1200Z-160814T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
OSWEGO-JEFFERSON-LEWIS-
INCLUDING THE CITIES OF...OSWEGO...WATERTOWN...LOWVILLE
946 AM EDT FRI AUG 12 2016

...FLASH FLOOD WATCH REMAINS IN EFFECT FROM SATURDAY MORNING
THROUGH SUNDAY MORNING...

THE FLASH FLOOD WATCH CONTINUES FOR

* A PORTION OF CENTRAL NEW YORK...INCLUDING THE FOLLOWING 
  JEFFERSON...LEWIS AND ...OSWEGO. 

* FROM SATURDAY MORNING THROUGH SUNDAY MORNING.

* A LOW PRESSURE SYSTEM WILL MOVE FROM THE CENTRAL GREAT LAKES 
  TO THE SAINT LAWRENCE VALLEY ALONG A STALLED FRONTAL BOUNDARY 
  WITHIN A UNUSUALLY WARM AND MOIST AIRMASS. THIS WILL RESULT IN 
  THE DEVELOPMENT OF WIDESPREAD SHOWERS AND THUNDERSTORMS ACROSS 
  THE AREA. THESE SHOWERS AND THUNDERSTORMS ARE EXPECTED TO 
  PRODUCE PERIODS OF INTENSE RAINFALL THAT MAY RESULT IN 
  LOCALIZED FLASH FLOODING ACROSS THE WATCH AREA. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLASH FLOOD WATCH MEANS THE THREAT OF FLASH FLOODING EXISTS
ALONG RIVERS AND CREEKS. IF YOU ARE IN THE WATCH AREA YOU SHOULD
MONITOR WEATHER CONDITIONS CLOSELY. BE READY TO MOVE TO HIGHER
GROUND IF FLOODING IS OBSERVED OR A WARNING IS ISSUED. STAY TUNED
TO WEATHER RADIO OR OTHER RADIO AND TV STATIONS FOR FURTHER
UPDATES.

&&

$$

APFFEL

564 
WGUS61 KBUF 121910
FFABUF

FLOOD WATCH
NATIONAL WEATHER SERVICE BUFFALO NY
310 PM EDT FRI AUG 12 2016

NYZ006>008-130400-
/O.CON.KBUF.FF.A.0001.160813T1200Z-160814T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
OSWEGO-JEFFERSON-LEWIS-
INCLUDING THE CITIES OF...OSWEGO...WATERTOWN...LOWVILLE
310 PM EDT FRI AUG 12 2016

...FLASH FLOOD WATCH REMAINS IN EFFECT FROM SATURDAY MORNING
THROUGH SUNDAY MORNING...

THE FLASH FLOOD WATCH CONTINUES FOR

* A PORTION OF CENTRAL NEW YORK...INCLUDING THE FOLLOWING 
  JEFFERSON...LEWIS AND ...OSWEGO. 

* FROM SATURDAY MORNING THROUGH SUNDAY MORNING.

* A LOW PRESSURE SYSTEM WILL MOVE FROM THE CENTRAL GREAT LAKES 
  TO THE SAINT LAWRENCE VALLEY ALONG A STALLED FRONTAL BOUNDARY 
  WITHIN A UNUSUALLY WARM AND MOIST AIRMASS. THIS WILL RESULT IN 
  THE DEVELOPMENT OF WIDESPREAD SHOWERS AND THUNDERSTORMS ACROSS 
  THE AREA. THESE SHOWERS AND THUNDERSTORMS ARE EXPECTED TO 
  PRODUCE PERIODS OF INTENSE RAINFALL THAT MAY RESULT IN 
  LOCALIZED FLASH FLOODING ACROSS THE WATCH AREA. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLASH FLOOD WATCH MEANS THE THREAT OF FLASH FLOODING EXISTS
ALONG RIVERS AND CREEKS. IF YOU ARE IN THE WATCH AREA YOU SHOULD
MONITOR WEATHER CONDITIONS CLOSELY. BE READY TO MOVE TO HIGHER
GROUND IF FLOODING IS OBSERVED OR A WARNING IS ISSUED. STAY TUNED
TO WEATHER RADIO OR OTHER RADIO AND TV STATIONS FOR FURTHER
UPDATES.

&&

$$

APFFEL

701 
WGUS61 KBUF 130327
FFABUF

FLOOD WATCH
NATIONAL WEATHER SERVICE BUFFALO NY
1127 PM EDT FRI AUG 12 2016


NYZ006>008-131130-
/O.CON.KBUF.FF.A.0001.160813T1200Z-160814T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
OSWEGO-JEFFERSON-LEWIS-
INCLUDING THE CITIES OF...OSWEGO...WATERTOWN...LOWVILLE
1127 PM EDT FRI AUG 12 2016

...FLASH FLOOD WATCH REMAINS IN EFFECT FROM 8 AM EDT SATURDAY
THROUGH SUNDAY MORNING...

THE FLASH FLOOD WATCH CONTINUES FOR

* A PORTION OF CENTRAL NEW YORK...INCLUDING THE FOLLOWING 
  JEFFERSON...LEWIS AND ...OSWEGO. 

* FROM 8 AM EDT SATURDAY THROUGH SUNDAY MORNING.

* A LOW PRESSURE SYSTEM WILL MOVE FROM THE CENTRAL GREAT LAKES TO
  THE SAINT LAWRENCE VALLEY ALONG A STALLED FRONTAL BOUNDARY
  WITHIN A UNUSUALLY WARM AND MOIST AIRMASS. THIS WILL RESULT IN
  THE DEVELOPMENT OF WIDESPREAD SHOWERS AND THUNDERSTORMS ACROSS
  THE AREA. THESE SHOWERS AND THUNDERSTORMS ARE EXPECTED TO
  PRODUCE PERIODS OF INTENSE RAINFALL THAT MAY RESULT IN LOCALIZED
  FLASH FLOODING ACROSS THE WATCH AREA. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLASH FLOOD WATCH MEANS THE THREAT OF FLASH FLOODING EXISTS
ALONG RIVERS AND CREEKS. IF YOU ARE IN THE WATCH AREA YOU SHOULD
MONITOR WEATHER CONDITIONS CLOSELY. BE READY TO MOVE TO HIGHER
GROUND IF FLOODING IS OBSERVED OR A WARNING IS ISSUED. STAY TUNED
TO WEATHER RADIO OR OTHER RADIO AND TV STATIONS FOR FURTHER
UPDATES.

&&

$$

WOOD

640 
WGUS61 KBUF 131103
FFABUF

FLOOD WATCH
NATIONAL WEATHER SERVICE BUFFALO NY
703 AM EDT SAT AUG 13 2016


NYZ006>008-131915-
/O.CON.KBUF.FF.A.0001.160813T1200Z-160814T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
OSWEGO-JEFFERSON-LEWIS-
INCLUDING THE CITIES OF...OSWEGO...WATERTOWN...LOWVILLE
703 AM EDT SAT AUG 13 2016

...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH SUNDAY MORNING...

THE FLASH FLOOD WATCH CONTINUES FOR

* A PORTION OF CENTRAL NEW YORK...INCLUDING THE FOLLOWING 
  JEFFERSON...LEWIS AND ...OSWEGO. 

* THROUGH SUNDAY MORNING.

* A LOW PRESSURE SYSTEM WILL MOVE FROM THE CENTRAL GREAT LAKES 
  TO THE SAINT LAWRENCE VALLEY ALONG A STALLED FRONTAL BOUNDARY 
  WITHIN A UNUSUALLY WARM AND MOIST AIRMASS. THIS WILL RESULT IN 
  THE DEVELOPMENT OF WIDESPREAD SHOWERS AND THUNDERSTORMS ACROSS 
  THE AREA. THESE SHOWERS AND THUNDERSTORMS ARE EXPECTED TO 
  PRODUCE PERIODS OF INTENSE RAINFALL THAT MAY RESULT IN 
  LOCALIZED FLASH FLOODING ACROSS THE WATCH AREA. 


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLASH FLOOD WATCH MEANS THE THREAT OF FLASH FLOODING EXISTS
ALONG RIVERS AND CREEKS. IF YOU ARE IN THE WATCH AREA YOU SHOULD
MONITOR WEATHER CONDITIONS CLOSELY. BE READY TO MOVE TO HIGHER
GROUND IF FLOODING IS OBSERVED OR A WARNING IS ISSUED. STAY TUNED
TO WEATHER RADIO OR OTHER RADIO AND TV STATIONS FOR FURTHER
UPDATES.

&&

$$

140 
WGUS61 KBUF 131852
FFABUF

FLOOD WATCH
NATIONAL WEATHER SERVICE BUFFALO NY
252 PM EDT SAT AUG 13 2016

NYZ006>008-140300-
/O.CON.KBUF.FF.A.0001.000000T0000Z-160814T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
OSWEGO-JEFFERSON-LEWIS-
INCLUDING THE CITIES OF...OSWEGO...WATERTOWN...LOWVILLE
252 PM EDT SAT AUG 13 2016

...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH SUNDAY MORNING...

THE FLASH FLOOD WATCH CONTINUES FOR

* A PORTION OF CENTRAL NEW YORK...INCLUDING THE FOLLOWING 
  JEFFERSON...LEWIS AND ...OSWEGO. 

* THROUGH SUNDAY MORNING.

* A LOW PRESSURE SYSTEM WILL MOVE FROM THE CENTRAL GREAT LAKES TO
  THE SAINT LAWRENCE VALLEY ALONG A STALLED FRONTAL BOUNDARY
  WITHIN A UNUSUALLY WARM AND MOIST AIRMASS. THIS WILL RESULT IN
  THE DEVELOPMENT OF WIDESPREAD SHOWERS AND THUNDERSTORMS ACROSS
  THE AREA. THESE SHOWERS AND THUNDERSTORMS ARE EXPECTED TO
  PRODUCE PERIODS OF INTENSE RAINFALL THAT MAY RESULT IN LOCALIZED
  FLASH FLOODING ACROSS THE WATCH AREA. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLASH FLOOD WATCH MEANS THE THREAT OF FLASH FLOODING EXISTS
ALONG RIVERS AND CREEKS. IF YOU ARE IN THE WATCH AREA YOU SHOULD
MONITOR WEATHER CONDITIONS CLOSELY. BE READY TO MOVE TO HIGHER
GROUND IF FLOODING IS OBSERVED OR A WARNING IS ISSUED. STAY TUNED
TO WEATHER RADIO OR OTHER RADIO AND TV STATIONS FOR FURTHER
UPDATES.

&&

$$

TMA

152 
WGUS61 KBUF 140528
FFABUF

FLOOD WATCH
NATIONAL WEATHER SERVICE BUFFALO NY
128 AM EDT SUN AUG 14 2016


NYZ006>008-140630-
/O.CAN.KBUF.FF.A.0001.000000T0000Z-160814T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
OSWEGO-JEFFERSON-LEWIS-
INCLUDING THE CITIES OF...OSWEGO...WATERTOWN...LOWVILLE
128 AM EDT SUN AUG 14 2016

...FLASH FLOOD WATCH IS CANCELLED...

THE FLASH FLOOD WATCH FOR A PORTION OF CENTRAL NEW YORK HAS BEEN
CANCELLED. THE RISK FOR LOCALLY HEAVY RAINFALL IS DIMINISHING. 

$$

HITCHCOCK

The office that day

Everything else NWS Buffalo, NY issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Aug 12, 1:46 AM EDT	Small Craft Advisory	BUF		18 hr
Aug 12, 10:36 AM EDT	Heat Advisory	BUF	Cayuga, Monroe, Ontario, Wayne	7 hr
Aug 12, 12:40 PM EDT	Special Marine Warning	BUF		95 min
Aug 12, 1:15 PM EDT	Special Marine Warning	BUF		60 min
Aug 12, 1:35 PM EDT	Special Marine Warning	BUF		25 min
Aug 12, 1:43 PM EDT	Special Weather Statement	BUF	Niagara	47 min
Aug 12, 2:12 PM EDT	Special Weather Statement	BUF	Oswego	48 min
Aug 12, 2:22 PM EDT	Special Marine Warning	BUF		38 min
Aug 12, 2:31 PM EDT	Special Weather Statement	BUF	Orleans	44 min
Aug 12, 2:46 PM EDT	Severe Thunderstorm Warning	BUF	Monroe, Orleans	44 min
Aug 12, 3:01 PM EDT	Special Weather Statement	BUF	Allegany, Cattaraugus	59 min
Aug 12, 3:12 PM EDT	Special Marine Warning	BUF		63 min
Aug 12, 4:12 PM EDT	Special Marine Warning	BUF		48 min
Aug 12, 4:32 PM EDT	Special Weather Statement	BUF	Cattaraugus	58 min

Nearby

Flash Flood Watches in New York, 2016 Every flash flood watch in 2016

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.