Alert archive / New York / Flash Flood Warnings in 2012

Flash Flood Warning 8, NWS Albany, NY

September 18, 2012Albany County, Columbia County, New York

NWS Albany, NY issued this flash flood warning at Sep 18, 2012, 6:28 PM EDT for Albany County, Columbia County, New York. It was in force for 3 hr. 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: Sep 18, 2012, 6:28 PM EDT (22:28 UTC)
Expired: Sep 18, 2012, 8:58 PM EDT
In force: 3 hr
Issued by: NWS Albany, NY
Area: Storm-based polygon
Flood severity: None

Counties Albany County, NY, Columbia County, NY

The radar

The Albany radar (KENX), 11 km from the middle of the area, began a volume at 22:29 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
Sep 18, 8:05 PM EDT	FLASH FLOOD	Colonie, NY	FLOODING ON NY-5 ROAD CLOSED

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, 10.5 hours before the alert went out and 15 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: 2 J/kg
Mixed-layer CIN: -126 J/kg
Mixed-layer LCL: 572 m above ground
0-6 km bulk shear: 49 kt
0-1 km storm-relative helicity: 251 m²/s²
0-3 km storm-relative helicity: 226 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

646 
WGUS51 KALY 182228
FFWALY
NYC001-021-190430-
/O.NEW.KALY.FF.W.0008.120918T2228Z-120919T0430Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ALBANY NY
628 PM EDT TUE SEP 18 2012

THE NATIONAL WEATHER SERVICE IN ALBANY HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  ALBANY COUNTY IN EAST CENTRAL NEW YORK...
  THIS INCLUDES THE CITIES OF...WATERVLIET...LATHAM...DELMAR...
  COLONIE...COHOES...ALBANY...
  NORTH CENTRAL COLUMBIA COUNTY IN EAST CENTRAL NEW YORK...

* UNTIL 1230 AM EDT

* AT 624 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  FLASH FLOODING DEVELOPING FROM CONTINUED HEAVY RAINFALL OVER THE   
  WARNED AREA.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  VOORHEESVILLE...MENANDS...LOUDONVILLE...GUILDERLAND...GREEN        
  ISLAND AND ALTAMONT.

RADAR ESTIMATES INDICATING 2 TO 4 INCHES OF RAIN HAS FALLEN ACROSS 
PORTIONS OF ALBANY COUNTY. ADDITIONAL RAINFALL OF 1 TO 2 INCHES IS 
POSSIBLE...AS ANOTHER BAND OF HEAVY RAIN MOVES BACK INTO THE AREA.

RAPID RUNOFF FROM HEAVY RAINFALL WILL LEAD TO FLASH FLOODING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

PLEASE REPORT FLOODING TO THE NATIONAL WEATHER SERVICE BY EMAIL AT
ALB.STORMREPORT@NOAA.GOV...ON FACEBOOK AT
WWW.FACEBOOK.COM/US.NATIONALWEATHERSERVICE.ALBANY.GOV OR TWITTER
@NWSALBANY.

&&

LAT...LON 4250 7423 4258 7424 4266 7417 4273 7418
      4277 7383 4282 7373 4279 7371 4278 7368
      4262 7376 4253 7376 4247 7379 4248 7366
      4241 7365 4240 7379 4247 7378 4241 7426
      4241 7427

$$

JPV

2 follow-up statements

165 
WGUS71 KALY 182235
FFSALY

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE ALBANY NY
635 PM EDT TUE SEP 18 2012

NYC021-182243-
/O.CAN.KALY.FF.W.0008.000000T0000Z-120919T0430Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
COLUMBIA NY-
635 PM EDT TUE SEP 18 2012

...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR NORTH CENTRAL
COLUMBIA COUNTY...

THE FLASH FLOOD WARNING WAS INADVERTENTLY ISSUED FOR NORTH CENTRAL 
COLUMBIA COUNTY. NO FLASH FLOOD WARNING IS IN EFFECT.

PLEASE REPORT FLOODING TO THE NATIONAL WEATHER SERVICE BY EMAIL AT
ALB.STORMREPORT@NOAA.GOV...ON FACEBOOK AT
WWW.FACEBOOK.COM/US.NATIONALWEATHERSERVICE.ALBANY.GOV OR TWITTER
@NWSALBANY.

LAT...LON 4250 7423 4258 7424 4266 7417 4273 7417
      4277 7385 4279 7376 4282 7374 4278 7369
      4278 7368 4262 7376 4255 7376 4247 7379
      4241 7427

$$

NYC001-190430-
/O.CON.KALY.FF.W.0008.000000T0000Z-120919T0430Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
ALBANY NY-
635 PM EDT TUE SEP 18 2012

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1230 AM EDT FOR
ALBANY COUNTY...

AT 629 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE DEVELOPING FLASH FLOODING OVER THE WARNED AREA.

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO WATERVLIET...
VOORHEESVILLE...MENANDS...LOUDONVILLE...LATHAM...GUILDERLAND...
DELMAR...COLONIE...COHOES...BERNE...ALTAMONT AND ALBANY

RADAR ESTIMATES INDICATING 2 TO 4 INCHES OF RAIN HAS FALLEN ACROSS 
PORTIONS OF ALBANY COUNTY. ADDITIONAL RAINFALL OF 1 TO 2 INCHES IS 
POSSIBLE...AS ANOTHER BAND OF HEAVY RAIN MOVES BACK INTO THE AREA.

RAPID RUNOFF FROM HEAVY RAINFALL WILL LEAD TO FLASH FLOODING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

PLEASE REPORT FLOODING TO THE NATIONAL WEATHER SERVICE BY EMAIL AT
ALB.STORMREPORT@NOAA.GOV...ON FACEBOOK AT
WWW.FACEBOOK.COM/US.NATIONALWEATHERSERVICE.ALBANY.GOV OR TWITTER
@NWSALBANY.

&&

LAT...LON 4250 7423 4258 7424 4266 7417 4273 7417
      4277 7385 4279 7376 4282 7374 4278 7369
      4278 7368 4262 7376 4255 7376 4247 7379
      4241 7427

$$

JPV

638 
WGUS71 KALY 190058
FFSALY

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE ALBANY NY
858 PM EDT TUE SEP 18 2012

NYC001-190108-
/O.CAN.KALY.FF.W.0008.000000T0000Z-120919T0430Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
ALBANY NY-
858 PM EDT TUE SEP 18 2012

...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR ALBANY COUNTY...

HEAVY RAIN HAS MOVED OUT OF THE AREA AND THE THREAT FOR FLASH 
FLOODING HAS ENDED.

PLEASE REPORT FLOODING TO THE NATIONAL WEATHER SERVICE BY EMAIL AT
ALB.STORMREPORT@NOAA.GOV...ON FACEBOOK AT
WWW.FACEBOOK.COM/US.NATIONALWEATHERSERVICE.ALBANY.GOV OR TWITTER
@NWSALBANY.

LAT...LON 4250 7423 4258 7424 4266 7417 4273 7417
      4277 7385 4279 7376 4282 7374 4278 7369
      4278 7368 4262 7376 4255 7376 4247 7379
      4241 7427

$$

JPV

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 18, 5:08 AM EDT	High Wind Warning	ALY	Columbia, Dutchess, Rensselaer, Washington	17 hr
Sep 18, 5:08 AM EDT	Wind Advisory	ALY	Albany, Columbia, Dutchess, Fulton, Greene, Hamilton and 9 more	17 hr
Sep 18, 3:21 PM EDT	Severe Thunderstorm Warning	ALY	Hamilton, Herkimer	69 min
Sep 18, 3:54 PM EDT	Areal Flood Advisory	ALY	Greene, Ulster	4 hr
Sep 18, 4:28 PM EDT	Flash Flood Warning	ALY	Greene, Ulster	5 hr
Sep 18, 4:33 PM EDT	Special Weather Statement	ALY	Hamilton, Herkimer	57 min
Sep 18, 4:53 PM EDT	Areal Flood Advisory	ALY	Albany	3 hr
Sep 18, 5:04 PM EDT	Special Weather Statement	ALY	Hamilton	56 min
Sep 18, 5:25 PM EDT	Special Weather Statement	ALY	Fulton, Hamilton, Montgomery, Warren	65 min
Sep 18, 5:28 PM EDT	River Flood Warning	ALY	Ulster	8 hr
Sep 18, 5:41 PM EDT	Special Weather Statement	ALY	Rensselaer	79 min
Sep 18, 5:42 PM EDT	Areal Flood Advisory	ALY	Albany, Rensselaer, Saratoga, Schenectady, Washington	3 hr
Sep 18, 6:05 PM EDT	Special Weather Statement	ALY	Greene	40 min
Sep 18, 6:15 PM EDT	Severe Thunderstorm Warning	ALY	Greene, Ulster	60 min
Sep 18, 6:24 PM EDT	Areal Flood Advisory	ALY	Fulton, Montgomery, Saratoga, Schenectady, Schoharie	100 min
Sep 18, 6:34 PM EDT	Severe Thunderstorm Warning	ALY	Albany, Greene, Rensselaer, Saratoga, Schenectady, Washington	56 min
Sep 18, 7:04 PM EDT	Severe Thunderstorm Warning	ALY	Albany, Columbia, Greene, Rensselaer	56 min
Sep 18, 7:08 PM EDT	Areal Flood Advisory	ALY	Columbia, Dutchess, Rensselaer, Schenectady, Washington	3 hr
Sep 18, 7:32 PM EDT	Severe Thunderstorm Warning	ALY	Columbia, Rensselaer, Saratoga, Washington	73 min

Nearby

Flash Flood Warnings in New York, 2012 Every 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.