Flash Flood Warning 19, NWS Philadelphia/Mount Holly

Issued

Jul 29, 2009, 3:52 PM EDT (19:52 UTC)

Expired

Jul 29, 2009, 7:45 PM EDT

In force

4 hr

Issued by

NWS Philadelphia/Mount Holly

Area

Storm-based polygon

Flood severity

None

Counties Morris County, NJ, Somerset County, NJ

The Philadelphia radar (KDIX), 81 km from the middle of the area, began a volume at 19:54 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.

000 
WGUS51 KPHI 291952
FFWPHI
NJC027-035-292345-
/O.NEW.KPHI.FF.W.0019.090729T1952Z-090729T2345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
352 PM EDT WED JUL 29 2009

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHEASTERN MORRIS COUNTY IN NORTHERN NEW JERSEY...
  THIS INCLUDES THE CITY OF MORRISTOWN...
  SOMERSET COUNTY IN NORTHERN NEW JERSEY...
  THIS INCLUDES THE CITY OF SOMERVILLE...

* UNTIL 745 PM EDT

* AT 344 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  FLASH FLOODING FROM A THUNDERSTORM OVER THE WARNED AREA.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  MILLINGTON...MARTINSVILLE...BRIDGEWATER...BASKING RIDGE...
  PEQUANNOCK TOWNSHIP...PEAPACK AND GLADSTONE...PARSIPPANY...
  MANVILLE...MADISON...FAR HILLS...EAST HANOVER...BOUND BROOK AND
  BOONTON

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THUNDERSTORMS PRODUCED HEAVY RAIN ACROSS PORTIONS OF THE WARNED AREA 
EARLIER THIS AFTERNOON. 

ADDITIONAL RAINFALL IS ON THE WAY AND COULD PRODUCE UP TO ANOTHER 
INCH.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...URBAN AREAS...HIGHWAYS...STREETS AND UNDERPASSES
AS WELL AS OTHER DRAINAGE AREAS AND LOW LYING SPOTS.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE 
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS 
SAFELY. MOVE TO HIGHER GROUND.

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.

&&

LAT...LON 4090 7427 4089 7433 4086 7431 4078 7437
      4074 7436 4067 7445 4065 7445 4066 7440
      4064 7440 4056 7453 4048 7447 4037 7461
      4039 7466 4037 7473 4050 7480 4050 7477
      4057 7471 4065 7473 4100 7433 4100 7430

$$

KRUZDLO

000 
WGUS71 KPHI 292336
FFSPHI

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
736 PM EDT WED JUL 29 2009

NJC027-035-292347-
/O.EXP.KPHI.FF.W.0019.000000T0000Z-090729T2345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MORRIS NJ-SOMERSET NJ-
736 PM EDT WED JUL 29 2009

...THE FLASH FLOOD WARNING WILL EXPIRE AT 745 PM EDT FOR SOMERSET AND
SOUTHEASTERN MORRIS COUNTIES...

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM EDT
WEDNESDAY EVENING FOR DELAWARE AND NORTHEASTERN MARYLAND AND NEW
JERSEY AND EASTERN PENNSYLVANIA.

LAT...LON 4090 7427 4089 7433 4086 7431 4078 7437
      4074 7436 4067 7445 4065 7445 4066 7440
      4064 7440 4056 7453 4048 7447 4037 7461
      4039 7466 4037 7473 4050 7480 4050 7477
      4057 7471 4065 7473 4100 7433 4100 7430

$$

KRUZDLO

Flash Flood Warnings in New Jersey, 2009Every flash flood warning in 2009

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.