Alert archive / Pennsylvania / Flash Flood Watches in 2015

Flash Flood Watch 3, NWS Philadelphia/Mount Holly

June 14, 2015Carbon County, Monroe County, Pennsylvania

NWS Philadelphia/Mount Holly issued this flash flood watch at Jun 14, 2015, 9:49 PM EDT for Carbon County, Monroe County, Pennsylvania. It was in force for 6 hr.

The area

The counties it named.

The facts

Issued: Jun 14, 2015, 9:49 PM EDT (01:49 UTC)
Expired: Jun 15, 2015, 3:23 AM EDT
In force: 6 hr
Issued by: NWS Philadelphia/Mount Holly
Flood severity: None

Counties Carbon County, PA, Monroe County, PA

The radar

The Binghamton radar (KBGM), 140 km from the middle of the area, began a volume at 01:53 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

Brookhaven, NY (KOKX), launched 00:00Z, 1.8 hours before the alert went out and 224 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1604 m above ground
0-6 km bulk shear: 29 kt
0-1 km storm-relative helicity: 35 m²/s²
0-3 km storm-relative helicity: 87 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.

653 
WGUS61 KPHI 150149
FFAPHI

URGENT - IMMEDIATE BROADCAST REQUESTED
FLOOD WATCH
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
949 PM EDT SUN JUN 14 2015

PAZ054-055-151000-
/O.NEW.KPHI.FF.A.0003.150615T0149Z-150615T1000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CARBON-MONROE-
INCLUDING THE CITIES OF...JIM THORPE...STROUDSBURG
949 PM EDT SUN JUN 14 2015

...FLASH FLOOD WATCH IN EFFECT UNTIL 6 AM EDT MONDAY...

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A

* FLASH FLOOD WATCH FOR A PORTION OF NORTHEAST PENNSYLVANIA... 
  INCLUDING THE FOLLOWING AREAS...CARBON AND MONROE. 

* UNTIL 6 AM EDT MONDAY

* SHOWERS AND A FEW THUNDERSTORMS ARE EXPECTED TO REDEVELOP DURING
  THE OVERNIGHT HOURS. RAINFALL MAY BE HEAVY AT TIMES WHICH COULD
  LEAD TO FLASH FLOODING. PORTIONS OF THIS AREA RECEIVED HEAVY
  RAIN ON SUNDAY AND ADDITIONAL RAINFALL WILL BE SLOW TO RUN OFF.
  LOCAL RAINFALL AMOUNTS OF UP TO 2 INCHES IN AN HOUR ARE
  POSSIBLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD
TO A RAPID RISE OF WATER TO DANGEROUS LEVELS. FLASH FLOODING IS A
VERY DANGEROUS SITUATION.

YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION
SHOULD FLASH FLOOD WARNINGS BE ISSUED.

&&

$$

1 follow-up statement

240 
WGUS61 KPHI 150723
FFAPHI

FLOOD WATCH
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
323 AM EDT MON JUN 15 2015

PAZ054-055-150830-
/O.CAN.KPHI.FF.A.0003.000000T0000Z-150615T1000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CARBON-MONROE-
INCLUDING THE CITIES OF...JIM THORPE...STROUDSBURG
323 AM EDT MON JUN 15 2015

...FLASH FLOOD WATCH IS CANCELLED...

THE FLASH FLOOD WATCH FOR A PORTION OF NORTHEAST PENNSYLVANIA HAS
BEEN CANCELLED. THERE WILL STILL BE SCATTERED SHOWERS AND
THUNDERSTORMS TODAY...BUT FLASH FLOODING IS NO LONGER EXPECTED. 

$$

The office that day

Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 14, 8:00 PM EDT	Special Weather Statement	PHI	Bucks	30 min
Jun 14, 8:24 PM EDT	Special Weather Statement	PHI	Chester	36 min
Jun 14, 8:33 PM EDT	Special Weather Statement	PHI	Bucks, Monroe	27 min
Jun 14, 8:42 PM EDT	Areal Flood Advisory	PHI	Chester, Delaware	2 hr
Jun 14, 8:55 PM EDT	Special Weather Statement	PHI	Bucks	50 min
Jun 14, 10:23 PM EDT	Areal Flood Advisory	PHI	Bucks, Lehigh, Northampton	4 hr
Jun 15, 6:50 PM EDT	Areal Flood Advisory	PHI	Bucks, Carbon, Lehigh, Monroe, Northampton	4 hr
Jun 15, 7:26 PM EDT	Flash Flood Warning	PHI	Northampton	4 hr

Nearby

Flash Flood Watches in Pennsylvania, 2015 Every flash flood watch in 2015

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.