Alert archive / New York / Flash Flood Warnings in 2007

Flash Flood Warning 3, NWS Albany, NY

May 10, 2007Montgomery County, New York

NWS Albany, NY issued this flash flood warning at May 10, 2007, 3:03 PM EDT for Montgomery 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, 3:03 PM EDT (19:03 UTC)
Expired
May 10, 2007, 9:00 PM EDT
In force
6 hr
Issued by
NWS Albany, NY
Area
Whole counties

County Montgomery County, NY

The radar

The Albany radar (KENX), 47 km from the middle of the area, began a volume at 19:03 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, 7.1 hours before the alert went out and 55 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 101903
FFWALY
NYC057-110100-

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

THE NATIONAL WEATHER SERVICE IN ALBANY HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  MONTGOMERY COUNTY IN EASTERN NEW YORK...
  THIS INCLUDES THE CITIES OF...FONDA...CANAJOHARIE...AMSTERDAM...

* UNTIL 900 PM EDT

* AT 255 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  THUNDERSTORMS CONTINUING TO DEVELOP AND TRAIN ACROSS MONTGOMERY    
  COUNTY. THUNDERSTORMS ARE EXPECTED TO CONTINUE THROUGH MUCH OF
  THE REMAINDER OF THE AFTERNOON. 

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO TRIBES
  HILL...ST. JOHNSVILLE...HAGAMAN...FORT PLAIN AND FORT JOHNSON.

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 OTSQUAGO CREEK...CAROGA CREEK...AURIES
CREEK...AND FLAT 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 4287 7476 4278 7444 4279 7428 4280 7426
      4281 7426 4290 7409 4298 7410 4298 7454
      4304 7474

$$
2 follow-up statements
000 
WGUS71 KALY 102150
FFSALY

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

NYC057-110100-
MONTGOMERY NY-
550 PM EDT THU MAY 10 2007

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 900 PM EDT FOR
MONTGOMERY COUNTY...

AT 544 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE NUMEROUS THUNDERSTORMS CAPABLE OF PRODUCING FLASH FLOODING 
MOVING ACROSS THE WARNED AREA.

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO TRIBES
HILL...ST. JOHNSVILLE...HAGAMAN...FORT PLAIN...FORT 
JOHNSON...FONDA...CANAJOHARIE AND AMSTERDAM.

ADDITIONAL RAINFALL AMOUNTS OF 1 TO 2 INCHES ARE 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...OTSQUAGO CREEK...CAROGA CREEK...AURIES 
CREEK...AND FLAT 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 4287 7476 4278 7444 4279 7428 4280 7426
      4281 7426 4290 7409 4298 7410 4298 7454
      4304 7474

$$
000 
WGUS71 KALY 110058
FFSALY

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

NYC057-110108-
MONTGOMERY NY-
858 PM EDT THU MAY 10 2007

...THE FLASH FLOOD WARNING WILL EXPIRE AT 900 PM EDT FOR MONTGOMERY
COUNTY...

LAT...LON 4287 7476 4278 7444 4279 7428 4280 7426
      4281 7426 4290 7409 4298 7410 4298 7454
      4304 7474

$$

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, 2:42 PM EDTFlash Flood WarningALYGreene6 hr
May 10, 2:52 PM EDTSevere Thunderstorm WarningALYHamilton36 min
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.