Alert archive / New Jersey / Red Flag Warnings in 2012

Red Flag Warning 4, NWS Philadelphia/Mount Holly

April 6, 20127 counties in Pennsylvania; 16 counties in New Jersey

NWS Philadelphia/Mount Holly issued this red flag warning at Apr 6, 2012, 2:40 AM EDT for 7 counties in Pennsylvania; 16 counties in New Jersey. It took effect at Apr 6, 2012, 11:00 AM EDT. It was in force for 9 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Apr 6, 2012, 2:40 AM EDT (06:40 UTC)
In effect from: Apr 6, 2012, 11:00 AM EDT
Expired: Apr 6, 2012, 8:00 PM EDT
In force: 9 hr
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 06:41 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, 6.7 hours before the alert went out and 192 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: 2177 m above ground
0-6 km bulk shear: 65 kt
0-1 km storm-relative helicity: 3 m²/s²
0-3 km storm-relative helicity: 45 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.

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

2 follow-up statements

516 
WWUS81 KPHI 061910
RFWPHI

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
310 PM EDT FRI APR 6 2012

NJZ001-007>010-012>027-PAZ054-055-060>062-067>071-070000-
/O.NEW.KPHI.FW.A.0004.120407T1400Z-120408T0000Z/
/O.CON.KPHI.FW.W.0004.000000T0000Z-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-
310 PM EDT FRI APR 6 2012

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING...
...FIRE WEATHER WATCH IN EFFECT FROM SATURDAY MORNING THROUGH
SATURDAY EVENING...

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

* WINDS...NORTHWEST 10 TO 20 MPH WITH GUSTS UP TO 30 MPH.

* RELATIVE HUMIDITY...AROUND 20 PERCENT.

* TIMING...THE PEAK IN THE WINDS AND DRY CONDITIONS ARE EXPECTED
  TO OCCUR FROM LATE MORNING THROUGH EARLY EVENING.

* IMPACTS...THE FIRE DANGER REMAINS ELEVATED DUE TO THE GUSTY
  WINDS AND RATHER DRY CONDITIONS. AS A RESULT, THE POTENTIAL
  EXISTS FOR RAPID SPREAD IF UNCONTROLLED FIRES DEVELOP OR EVEN
  FOR PRESCRIBED BURNS TO GET OUT OF CONTROL.

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.

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

&&

$$

DEZ001>004-MDZ008-012-015-019-020-070000-
/O.NEW.KPHI.FW.A.0004.120407T1400Z-120408T0000Z/
NEW CASTLE-KENT-INLAND SUSSEX-DELAWARE BEACHES-CECIL-KENT MD-
QUEEN ANNES-TALBOT-CAROLINE-
310 PM EDT FRI APR 6 2012

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

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

* WINDS...NORTHWEST 10 TO 20 MPH WITH GUSTS UP TO 30 MPH.

* RELATIVE HUMIDITY...AROUND 20 PERCENT.

* TIMING...THE PEAK IN THE WINDS AND DRY CONDITIONS ARE EXPECTED
  TO OCCUR FROM LATE MORNING THROUGH EARLY EVENING.

* IMPACTS...THE FIRE DANGER SHOULD BE ELEVATED SATURDAY DUE TO
  THE GUSTY WINDS AND RATHER DRY CONDITIONS. AS A RESULT, THE
  POTENTIAL EXISTS FOR RAPID SPREAD IF UNCONTROLLED FIRES DEVELOP
  OR EVEN FOR PRESCRIBED BURNS TO GET OUT OF CONTROL.

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.

&&

$$

GORSE

290 
WWUS81 KPHI 062356
RFWPHI

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
756 PM EDT FRI APR 6 2012

NJZ001-007>010-012>027-PAZ054-055-060>062-067>071-070900-
/O.EXP.KPHI.FW.W.0004.000000T0000Z-120407T0000Z/
/O.UPG.KPHI.FW.A.0004.120407T1400Z-120408T0000Z/
/O.NEW.KPHI.FW.W.0005.120407T1400Z-120408T0000Z/
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-
756 PM EDT FRI APR 6 2012

...RED FLAG WARNING IN EFFECT FROM 10 AM TO 8 PM EDT SATURDAY...
...RED FLAG WARNING WILL EXPIRE AT 8 PM EDT THIS EVENING...

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT FROM 10 AM TO 8 PM EDT SATURDAY. THE
FIRE WEATHER WATCH IS NO LONGER IN EFFECT.

* WINDS...NORTHWEST 10 TO 20 MPH WITH GUSTS UP TO 30 MPH.

* RELATIVE HUMIDITY...AROUND 20 PERCENT.

* TIMING...THE PEAK IN THE WINDS AND DRY CONDITIONS ARE EXPECTED 
  TO OCCUR FROM LATE MORNING THROUGH EARLY EVENING. 

* IMPACTS...THE FIRE DANGER REMAINS ELEVATED DUE TO THE GUSTY
  WINDS AND RATHER DRY CONDITIONS. AS A RESULT, THE POTENTIAL
  EXISTS FOR RAPID SPREAD IF UNCONTROLLED FIRES DEVELOP OR EVEN
  FOR PRESCRIBED BURNS TO GET OUT OF CONTROL. OUTDOOR BURNING IS
  NOT RECOMMENDED.

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.

&&

$$

DEZ001>004-MDZ008-012-015-019-020-070900-
/O.CON.KPHI.FW.A.0004.120407T1400Z-120408T0000Z/
NEW CASTLE-KENT-INLAND SUSSEX-DELAWARE BEACHES-CECIL-KENT MD-
QUEEN ANNES-TALBOT-CAROLINE-
756 PM EDT FRI APR 6 2012

...FIRE WEATHER WATCH REMAINS IN EFFECT FROM SATURDAY MORNING
THROUGH SATURDAY EVENING...

* WINDS...NORTHWEST 15 TO 20 MPH.

* RELATIVE HUMIDITY...20 TO 30 PERCENT.

* IMPACTS...THE FIRE DANGER SHOULD BE ELEVATED SATURDAY DUE TO THE
  GUSTY WINDS AND RATHER DRY CONDITIONS. AS A RESULT, THE
  POTENTIAL EXISTS FOR RAPID SPREAD IF UNCONTROLLED FIRES DEVELOP
  OR EVEN FOR PRESCRIBED BURNS TO GET OUT OF CONTROL. OUTDOOR
  BURNING IS NOT RECOMMENDED.

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.

&&

$$

GORSE

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 6, 8:11 AM EDT	Freeze Warning	PHI	Berks, Lehigh, Northampton	24 hr
Apr 6, 3:10 PM EDT	Fire Weather Watch	PHI	Berks, Carbon, Delaware, Lehigh, Monroe, Northampton and 1 more	13 hr
Apr 6, 7:56 PM EDT	Red Flag Warning	PHI	Berks, Carbon, Delaware, Lehigh, Monroe, Northampton and 1 more	24 hr
Apr 6, 11:20 AM EDT	Coastal Flood Statement	PHI	Atlantic, Burlington, Cape May, Middlesex, Monmouth, Ocean	12 hr
Apr 6, 1:21 PM EDT	Small Craft Advisory	PHI		26 hr
Apr 6, 3:46 PM EDT	Small Craft Advisory	PHI		24 hr

Nearby

Red Flag Warnings in New Jersey, 2012 Red Flag Warnings in Pennsylvania, 2012 Every red flag warning 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.