Alert archive / New York / Flash Flood Warnings in 2007

Flash Flood Warning 2, NWS Albany, NY

May 10, 2007Greene County, New York

NWS Albany, NY issued this flash flood warning at May 10, 2007, 2:42 PM EDT for Greene County, New York. It was in force for 6 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
May 10, 2007, 2:42 PM EDT (18:42 UTC)
Expired
May 10, 2007, 8:45 PM EDT
In force
6 hr
Issued by
NWS Albany, NY
Area
Whole counties

County Greene County, NY

The radar

The Albany radar (KENX), 35 km from the middle of the area, began a volume at 18:42 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 12:00Z, 6.7 hours before the alert went out and 52 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-pSkew-T log-p diagram, Albany, NY at 12:00Z on 2007-05-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 654 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Albany, NY at 12:00Z on 2007-05-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 10 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
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
654 J/kg
Mixed-layer CIN
-57 J/kg
Mixed-layer LCL
725 m above ground
0-6 km bulk shear
15 kt
0-1 km storm-relative helicity
10 m²/s²
0-3 km storm-relative helicity
25 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.

000 
WGUS51 KALY 101842
FFWALY
NYC039-110045-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ALBANY NY
242 PM EDT THU MAY 10 2007

THE NATIONAL WEATHER SERVICE IN ALBANY HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  GREENE COUNTY IN EAST CENTRAL NEW YORK...
  THIS INCLUDES THE CITIES OF...HUNTER...CATSKILL...

* UNTIL 845 PM EDT

* AT 233 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  THUNDERSTORMS CONTINUING TO DEVELOP AND TRAIN ACROSS THE CATSKILLS
  IN GREENE COUNTY.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO WINDHAM...
  PRATTSVILLE AND COXSACKIE

ADDITIONAL RAINFALL AMOUNTS OF 1 TO 3 INCHES ARE EXPECTED IN THE 
WARNED AREA WHICH WOULD BE ENOUGH RAINFALL TO PRODUCE FLOODING ON 
SOME SMALL STREAMS. FLOODING IS EXPECTED ALONG BUT NOT LIMITED TO 
THE FOLLOWING SMALL STREAMS...CATSKILL CREEK...JAN DE BAKKERS
KILL...WEST KILL...SHINGLE KILL...COB CREEK AND THE STONY CLOVE 
CREEK. 

MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO
AREAS WHERE THE WATER COVERS THE ROADWAY. FLOOD WATERS ARE USUALLY
DEEPER THAN THEY APPEAR. JUST ONE FOOT OF FLOWING WATER IS POWERFUL
ENOUGH TO SWEEP VEHICLES OFF THE ROAD. WHEN ENCOUNTERING FLOODED
ROADS MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN.

TO REPORT FLOODING...HAVE THE NEAREST LAW ENFORCEMENT AGENCY RELAY
YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN
ALBANY.

LAT...LON 4220 7453 4212 7427 4210 7394 4230 7380
      4244 7381 4240 7423 4236 7426 4234 7444

$$
2 follow-up statements
000 
WGUS71 KALY 102102
FFSALY

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE ALBANY NY
502 PM EDT THU MAY 10 2007

NYC039-110045-
GREENE NY-
502 PM EDT THU MAY 10 2007

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 845 PM EDT FOR
GREENE COUNTY...

AT 454 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
MORE THUNDERSTORMS HEADING TOWARD GREENE COUNTY WHICH ARE EXPECTED 
TO PRODUCE SOME FLASH FLOODING ACROSS THE WARNED AREA. THESE
THUNDERSTORMS ARE EXPECTED TO BECOME MORE NUMEROUS AND CONTINUE INTO 
THIS EVENING.

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO 
WINDHAM...PRATTSVILLE AND COXSACKIE.

ADDITIONAL RAINFALL AMOUNTS OF 1 TO 2 INCHES IS POSSIBLE IN THE 
WARNED AREA WHICH WOULD BE ENOUGH RAINFALL TO PRODUCE FLOODING ON 
SOME SMALL STREAMS. FLOODING IS EXPECTED ALONG BUT NOT LIMITED TO 
THE FOLLOWING SMALL STREAMS...CATSKILL CREEK...JAN DE BAKKERS 
KILL...WEST KILL...SHINGLE KILL...COB CREEK AND THE STONY CLOVE 
CREEK. 

MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO
AREAS WHERE THE WATER COVERS THE ROADWAY. FLOOD WATERS ARE USUALLY
DEEPER THAN THEY APPEAR. JUST ONE FOOT OF FLOWING WATER IS POWERFUL
ENOUGH TO SWEEP VEHICLES OFF THE ROAD. WHEN ENCOUNTERING FLOODED
ROADS MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN.

TO REPORT FLOODING...HAVE THE NEAREST LAW ENFORCEMENT AGENCY RELAY
YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN
ALBANY.

LAT...LON 4220 7453 4212 7427 4210 7394 4230 7380
      4244 7381 4240 7423 4236 7426 4234 7444

$$
000 
WGUS71 KALY 110044
FFSALY

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE ALBANY NY
844 PM EDT THU MAY 10 2007

NYC039-110054-
GREENE NY-
844 PM EDT THU MAY 10 2007

...THE FLASH FLOOD WARNING WILL EXPIRE AT 845 PM EDT FOR GREENE
COUNTY...

LAT...LON 4220 7453 4212 7427 4210 7394 4230 7380
      4244 7381 4240 7423 4236 7426 4234 7444

$$

The office that day

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

IssuedProductOfficeCountiesLasted
May 10, 12:41 PM EDTSevere Thunderstorm WarningALYHerkimer49 min
May 10, 1:37 PM EDTSevere Thunderstorm WarningALYMontgomery53 min
May 10, 1:58 PM EDTSevere Thunderstorm WarningALYSchoharie47 min
May 10, 2:52 PM EDTSevere Thunderstorm WarningALYHamilton36 min
May 10, 3:03 PM EDTFlash Flood WarningALYMontgomery6 hr
May 10, 4:41 PM EDTSevere Thunderstorm WarningALYSchoharie45 min
May 10, 5:53 PM EDTSevere Thunderstorm WarningALYSchoharie67 min

Nearby

Flash Flood Warnings in New York, 2007Every flash flood warning in 2007

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.