Alert archive / New Jersey / Fire Weather Watches in 2012

Fire Weather Watch 3, NWS Philadelphia/Mount Holly

April 5, 20127 counties in Pennsylvania; 16 counties in New Jersey

NWS Philadelphia/Mount Holly issued this fire weather watch at Apr 5, 2012, 3:15 PM EDT for 7 counties in Pennsylvania; 16 counties in New Jersey. It took effect at Apr 6, 2012, 10:00 AM EDT. It was in force for .

The area

The counties it named.

The facts

Issued
Apr 5, 2012, 3:15 PM EDT (19:15 UTC)
In effect from
Apr 6, 2012, 10:00 AM EDT
Expired
Apr 6, 2012, 2:40 AM EDT
In force
Issued by
NWS Philadelphia/Mount Holly
All 23 counties

Atlantic County, NJ, Burlington County, NJ, Camden County, NJ, Cape May County, NJ, Cumberland County, NJ, Gloucester County, NJ, Hunterdon County, NJ, Mercer County, NJ, Middlesex County, NJ, Monmouth County, NJ, Morris County, NJ, Ocean County, NJ, Salem County, NJ, Somerset County, NJ, Sussex County, NJ, Warren County, NJ, Berks County, PA, Carbon County, PA, Delaware County, PA, Lehigh County, PA, Monroe County, PA, Northampton County, PA, Philadelphia County, PA

The radar

The Philadelphia radar (KDIX), 58 km from the middle of the area, began a volume at 19:21 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

Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 7.3 hours before the alert went out and 128 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, Phillips Aaf/Abe, MD at 12:00Z on 2012-04-05Temperature 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, Phillips Aaf/Abe, MD at 12:00Z on 2012-04-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -145 square meters per square second.1939587897Sfc1 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
1708 m above ground
0-6 km bulk shear
64 kt
0-1 km storm-relative helicity
-145 m²/s²
0-3 km storm-relative helicity
67 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.

440 
WWUS81 KPHI 051915
RFWPHI

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
315 PM EDT THU APR 5 2012

NJZ001-007>010-012>027-PAZ054-055-060>062-067>071-060830-
/O.NEW.KPHI.FW.A.0003.120406T1400Z-120407T0000Z/
SUSSEX-WARREN-MORRIS-HUNTERDON-SOMERSET-MIDDLESEX-
WESTERN MONMOUTH-EASTERN MONMOUTH-MERCER-SALEM-GLOUCESTER-CAMDEN-
NORTHWESTERN BURLINGTON-OCEAN-CUMBERLAND-ATLANTIC-CAPE MAY-
ATLANTIC COASTAL CAPE MAY-COASTAL ATLANTIC-COASTAL OCEAN-
SOUTHEASTERN BURLINGTON-CARBON-MONROE-BERKS-LEHIGH-NORTHAMPTON-
CHESTER-MONTGOMERY-BUCKS-DELAWARE-PHILADELPHIA-
315 PM EDT THU APR 5 2012

...FIRE WEATHER WATCH IN EFFECT FROM FRIDAY MORNING THROUGH
FRIDAY EVENING...

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A FIRE
WEATHER WATCH...WHICH IS IN EFFECT FROM FRIDAY MORNING THROUGH
FRIDAY EVENING.

* AFFECTED AREA...NEW JERSEY AND EASTERN PENNSYLVANIA.

* WINDS...NORTH 10 TO 15 MPH WITH GUSTS UP TO 25 MPH.

* RELATIVE HUMIDITY...AROUND 20 PERCENT.

* IMPACTS...THE FIRE DANGER WILL BE ELEVATED DUE TO THE GUSTY WINDS,
  RECENT LACK OF PRECIPITATION, LOW RELATIVE HUMIDITIES, AND DRY
  FUELS. BECAUSE OF THESE FORECAST CONDITIONS, THE POTENTIAL
  EXISTS FOR RAPID SPREAD IF UNCONTROLLED FIRES DEVELOP.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FIRE WEATHER WATCH MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE FORECAST TO OCCUR. LISTEN FOR LATER FORECASTS AND POSSIBLE
RED FLAG WARNINGS.

&&

$$

KLINE
1 follow-up statement
062 
WWUS81 KPHI 060640
RFWPHI

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
240 AM EDT FRI APR 6 2012

NJZ001-007>010-012>027-PAZ054-055-060>062-067>071-070000-
/O.UPG.KPHI.FW.A.0003.120406T1400Z-120407T0000Z/
/O.NEW.KPHI.FW.W.0004.120406T1500Z-120407T0000Z/
SUSSEX-WARREN-MORRIS-HUNTERDON-SOMERSET-MIDDLESEX-
WESTERN MONMOUTH-EASTERN MONMOUTH-MERCER-SALEM-GLOUCESTER-CAMDEN-
NORTHWESTERN BURLINGTON-OCEAN-CUMBERLAND-ATLANTIC-CAPE MAY-
ATLANTIC COASTAL CAPE MAY-COASTAL ATLANTIC-COASTAL OCEAN-
SOUTHEASTERN BURLINGTON-CARBON-MONROE-BERKS-LEHIGH-NORTHAMPTON-
CHESTER-MONTGOMERY-BUCKS-DELAWARE-PHILADELPHIA-
240 AM EDT FRI APR 6 2012

...RED FLAG WARNING IN EFFECT FROM 11 AM THIS MORNING TO 8 PM EDT
THIS EVENING...

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT FROM 11 AM THIS MORNING TO 8 PM EDT
THIS EVENING. THE FIRE WEATHER WATCH IS NO LONGER IN EFFECT.

* AFFECTED AREA...EASTERN PENNSYLVANIA AND NEW JERSEY WEST AND
  SOUTH OF PASSAIC...BERGEN...HUDSON...ESSEX...AND UNION COUNTIES.

* WINDS...NORTH 15 TO 20 MPH WITH GUSTS NEAR 25 MPH.

* RELATIVE HUMIDITY...DROPPING BELOW 30 PERCENT TO AS LOW AS 20
  PERCENT.

* TEMPERATURES...RANGING FROM THE UPPER 40S OVER THE SOUTHERN
  POCONOS TO NEAR 60 OVER SOUTHEASTERN PENNSYLVANIA AND SOUTHERN
  NEW JERSEY.

* IMPACTS...THE FIRE DANGER WILL BE ELEVATED DUE TO THE GUSTY
  WINDS...RECENT LACK OF PRECIPITATION...LOW RELATIVE HUMIDITIES
  AND DRY FUELS. BECAUSE OF THESE FORECAST CONDITIONS...THE
  POTENTIAL EXISTS FOR RAPID SPREAD IF UNCONTROLLED FIRES DEVELOP.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW OR WILL SHORTLY. A COMBINATION OF STRONG
WINDS...LOW RELATIVE HUMIDITY AND DRY FUELS WILL CREATE EXPLOSIVE
FIRE GROWTH POTENTIAL.

FOR MORE INFORMATION ABOUT WILDFIRE DANGER...BURN RESTRICTIONS AND
WILDFIRE PREVENTION AND EDUCATION...PLEASE VISIT YOUR STATE FORESTRY
OR ENVIRONMENTAL PROTECTION WEBSITE.

&&

$$

MPD

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 5, 7:51 AM EDTFreeze WarningPHIBerks, Lehigh, Northampton24 hr
Apr 5, 3:36 PM EDTSmall Craft AdvisoryPHI20 hr

Nearby

Fire Weather Watches in New Jersey, 2012Fire Weather Watches in Pennsylvania, 2012Every fire weather watch in 2012

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.