Alert archive / Pennsylvania / Flash Flood Warnings in 2016

Flash Flood Warning 13, NWS Binghamton, NY

October 21, 2016Bradford County, Pennsylvania

NWS Binghamton, NY issued this flash flood warning at Oct 21, 2016, 6:32 AM EDT for Bradford County, Pennsylvania. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Oct 21, 2016, 6:32 AM EDT (10:32 UTC)
Expired
Oct 21, 2016, 9:30 AM EDT
In force
3 hr
Issued by
NWS Binghamton, NY
Area
Storm-based polygon
Flood severity
None

County Bradford County, PA

The radar

The Binghamton radar (KBGM), 81 km from the middle of the area, began a volume at 10:32 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

Buffalo Intl Airport, NY (KBUF), launched 00:00Z, 10.5 hours before the alert went out and 214 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, Buffalo Intl Airport, NY at 00:00Z on 2016-10-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Buffalo Intl Airport, NY at 00:00Z on 2016-10-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 95 square meters per square second.1939587897117Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
560 m above ground
0-6 km bulk shear
64 kt
0-1 km storm-relative helicity
95 m²/s²
0-3 km storm-relative helicity
220 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

622 
WGUS51 KBGM 211032
FFWBGM
PAC015-211330-
/O.NEW.KBGM.FF.W.0013.161021T1032Z-161021T1330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BINGHAMTON NY
632 AM EDT FRI OCT 21 2016

THE NATIONAL WEATHER SERVICE IN BINGHAMTON HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHWESTERN BRADFORD COUNTY IN NORTHEASTERN PENNSYLVANIA...

* UNTIL 930 AM EDT

* AT 628 AM EDT...LOCAL OFFICIALS REPORTED HEAVY RAIN HAD CAUSED
  FLASH FLOODING AND ROAD CLOSURES AROUND THE AREA. OVER 4 INCHES OF
  RAIN HAVE FALLEN OVERNIGHT. FLASH FLOODING IS ALREADY OCCURRING,
  AND THE STREAM GAUGE ON TOWANDA CREEK HAD EXCEEDED MODERATE FLOOD
  STAGE. SCHRADER CREEK AND SUGAR RUN MAY ALSO BE FLOODING AT THIS
  TIME.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  TOWANDA...CANTON...WEST FRANKLIN...TROY...WEST BURLINGTON...
  MONROE...NEW ALBANY...OVERTON...ALBA AND MONROETON.

* WATER LEVELS WILL GRADUALLY DROP THROUGH THE MORNING, HOWEVER,
  MORE HEAVY RAIN IS EXPECTED TO MOVE INTO THE AREA WHICH WILL
  LIKELY CREATE NEW FLOODING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

STAY AWAY OR BE SWEPT AWAY. RIVER BANKS AND CULVERTS CAN BECOME
UNSTABLE AND UNSAFE.

&&

LAT...LON 4179 7688 4176 7641 4156 7643 4160 7688

$$

JAB
1 follow-up statement
981 
WGUS71 KBGM 211333
FFSBGM

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BINGHAMTON NY
933 AM EDT FRI OCT 21 2016

PAC015-211342-
/O.EXP.KBGM.FF.W.0013.000000T0000Z-161021T1330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BRADFORD PA-
933 AM EDT FRI OCT 21 2016

...THE FLASH FLOOD WARNING FOR SOUTHWESTERN BRADFORD COUNTY HAS
EXPIRED...

HEAVIER RAIN MOVED OUT OF THE REGION EARLIER THIS MORNING. NO
ADDITIONAL FLOODING PROBLEMS ARE ANTICIPATED OVER THE NEAR
TERM. PLEASE CONTINUE TO HEED ANY REMAINING ROAD CLOSURES.

LAT...LON 4179 7688 4176 7641 4156 7643 4160 7688

$$

MLJ

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 20, 10:48 PM EDTSevere Thunderstorm WarningBGMBradford, Wyoming27 min
Oct 20, 11:14 PM EDTSpecial Weather StatementBGMBradford31 min
Oct 21, 12:07 AM EDTAreal Flood AdvisoryBGMBradford3 hr
Oct 21, 12:27 AM EDTFlash Flood WarningBGMBradford6 hr
Oct 21, 2:39 AM EDTAreal Flood AdvisoryBGMBradford, Susquehanna3 hr
Oct 21, 5:40 AM EDTRiver Flood WarningBGMBradford13 hr
Oct 21, 1:40 PM EDTAreal Flood AdvisoryBGMBradford, Luzerne, Susquehanna, Wyoming3 hr

Nearby

Flash Flood Warnings in Pennsylvania, 2016Every flash flood warning 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.