Alert archive / New Jersey / Flash Flood Warnings in 2006

Flash Flood Warning 54, NWS Philadelphia/Mount Holly

July 22, 2006Morris County, New Jersey

NWS Philadelphia/Mount Holly issued this flash flood warning at Jul 22, 2006, 3:20 PM EDT for Morris County, New Jersey. 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: Jul 22, 2006, 3:20 PM EDT (19:20 UTC)
Expired: Jul 22, 2006, 6:15 PM EDT
In force: 3 hr
Issued by: NWS Philadelphia/Mount Holly
Area: Counties, with a storm outline in the text

County Morris County, NJ

The radar

The Philadelphia radar (KDIX), 97 km from the middle of the area, began a volume at 19:22 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 12:00Z, 7.3 hours before the alert went out and 147 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: 1349 J/kg
Mixed-layer CIN: -17 J/kg
Mixed-layer LCL: 520 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: 78 m²/s²
0-3 km storm-relative helicity: 98 m²/s²
Significant tornado parameter: 0.4
Supercell composite: 1.9

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WGUS51 KPHI 221921
FFWPHI
NJC027-222215-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
320 PM EDT SAT JUL 22 2006

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  MORRIS COUNTY IN NORTHERN NEW JERSEY

* UNTIL 615 PM EDT

* AT 318 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  A THUNDERSTORM CAPABLE OF PRODUCING FLASH FLOODING OVER THE 
  WARNED AREA. RADAR INDICATED RAINFALL OF OVER 2 INCHES IN AN
  HOURS TIME.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  SUCCASUNNA...LONG VALLEY...KINNELON...DOVER AND CHESTER

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY
ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS...STREAMS AND OTHER LOW
LYING AREAS ARE SUBJECT TO FLOODING.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WAT/ETC/X11/XINIT/XINITRC.DER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY.
MOVE TO HIGHER GROUND.

LAT...LON 4073 7467 4078 7451 4101 7435 4076 7487

$$

STAUBER

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 22, 3:59 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Camden	76 min
Jul 22, 4:47 PM EDT	Severe Thunderstorm Warning	PHI	Mercer, Middlesex	58 min
Jul 22, 5:01 PM EDT	Special Marine Warning	PHI		44 min

Nearby

Flash Flood Warnings in New Jersey, 2006 Every flash flood warning in 2006

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.