Alert archive / New Jersey / Red Flag Warnings in 2012

Red Flag Warning 7, NWS Philadelphia/Mount Holly

April 8, 20124 states

NWS Philadelphia/Mount Holly issued this red flag warning at Apr 8, 2012, 8:01 PM EDT for 4 states. It took effect at Apr 9, 2012, 10:00 AM EDT. It was in force for 10 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 8, 2012, 8:01 PM EDT (00:01 UTC)
In effect from
Apr 9, 2012, 10:00 AM EDT
Expired
Apr 9, 2012, 8:04 PM EDT
In force
10 hr
Issued by
NWS Philadelphia/Mount Holly
All 31 counties

Kent County, DE, New Castle County, DE, Sussex County, DE, Caroline County, MD, Cecil County, MD, Kent County, MD, Queen Anne's County, MD, Talbot County, MD, 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), 67 km from the middle of the area, began a volume at 00:01 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

Washington/Dulle, VA (KIAD), launched 00:00Z, 0.0 hours before the alert went out and 219 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, Washington/Dulle, VA at 00:00Z on 2012-04-09Temperature 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, Washington/Dulle, VA at 00:00Z on 2012-04-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -21 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
0 m above ground
0-6 km bulk shear
52 kt
0-1 km storm-relative helicity
-21 m²/s²
0-3 km storm-relative helicity
176 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.

123 
WWUS81 KPHI 090001
RFWPHI

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
801 PM EDT SUN APR 8 2012

DEZ001>004-MDZ008-012-015-019-020-NJZ001-007>010-012>027-PAZ054-
055-060>062-067>071-091015-
/O.CAN.KPHI.FW.W.0006.000000T0000Z-120409T0000Z/
/O.UPG.KPHI.FW.A.0006.120409T1400Z-120410T0000Z/
/O.NEW.KPHI.FW.W.0007.120409T1400Z-120410T0000Z/
NEW CASTLE-KENT-INLAND SUSSEX-DELAWARE BEACHES-CECIL-KENT MD-
QUEEN ANNES-TALBOT-CAROLINE-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-
801 PM EDT SUN APR 8 2012

...RED FLAG WARNING IN EFFECT FROM 10 AM TO 8 PM EDT MONDAY...

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FIRE WEATHER WATCH FOR MONDAY IS NO LONGER IN EFFECT.

* WINDS...WEST 15 TO 25 MPH WITH GUSTS UP TO 40 MPH.

* RELATIVE HUMIDITY...AS LOW AS 20 PERCENT.

* TIMING...THE PEAK WINDS AND LOWEST RELATIVE HUMIDITY LEVELS ARE
  EXPECTED FROM LATE MORNING THROUGH LATE AFTERNOON ON MONDAY.

* IMPACTS...THE FIRE DANGER SHOULD BE ELEVATED DUE TO THE GUSTY 
  WINDS AND 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...

THIS RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
WILL OCCUR IN THE NEAR FUTURE. A COMBINATION OF STRONG WINDS AND
LOW RELATIVE HUMIDITY 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.

&&

$$
3 follow-up statements
916 
WWUS81 KPHI 090751
RFWPHI

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
351 AM EDT MON APR 9 2012

DEZ001>004-MDZ008-012-015-019-020-NJZ001-007>010-012>027-PAZ054-
055-060>062-067>071-100000-
/O.CON.KPHI.FW.W.0007.120409T1400Z-120410T0000Z/
NEW CASTLE-KENT-INLAND SUSSEX-DELAWARE BEACHES-CECIL-KENT MD-
QUEEN ANNES-TALBOT-CAROLINE-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-
351 AM EDT MON APR 9 2012

...RED FLAG WARNING REMAINS IN EFFECT FROM 10 AM THIS MORNING TO
8 PM EDT THIS EVENING...

* WINDS...WEST 20 TO 25 MPH WITH GUSTS TO AROUND 45 MPH.

* RELATIVE HUMIDITY...AS LOW AS 20 PERCENT.

* TIMING...THE LOWEST RELATIVE HUMIDITY LEVELS ARE EXPECTED FROM
  LATE MORNING THROUGH LATE AFTERNOON. STRONG WIND GUSTS ARE
  EXPECTED FROM MID MORNING THROUGH LATE AFTERNOON. 

* IMPACTS...THE FIRE DANGER WILL BE ELEVATED DUE TO THE GUSTY
  WINDS AND 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...

THIS RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
WILL OCCUR IN THE NEAR FUTURE. A COMBINATION OF STRONG WINDS AND
LOW RELATIVE HUMIDITY 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.

&&

$$
678 
WWUS81 KPHI 091912
RFWPHI

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
312 PM EDT MON APR 9 2012

DEZ001>004-MDZ008-012-015-019-020-NJZ001-007>010-012>027-PAZ054-
055-060>062-067>071-100000-
/O.NEW.KPHI.FW.A.0007.120410T1400Z-120411T0000Z/
/O.CON.KPHI.FW.W.0007.000000T0000Z-120410T0000Z/
NEW CASTLE-KENT-INLAND SUSSEX-DELAWARE BEACHES-CECIL-KENT MD-
QUEEN ANNES-TALBOT-CAROLINE-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-
312 PM EDT MON APR 9 2012

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

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

* WINDS...WEST 20 TO 30 MPH WITH GUSTS TO AROUND 45 MPH, THEN
  DECREASING TONIGHT. FOR TUESDAY, WEST 15 TO 20 MPH WITH GUSTS UP
  TO 30 MPH.

* RELATIVE HUMIDITY...AROUND 20 PERCENT THROUGH EARLY THIS
  EVENING, THEN AROUND 30 PERCENT ON TUESDAY.

* 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 OCCURRING OR ARE IMMINENT. A COMBINATION OF STRONG WINDS AND
LOW RELATIVE HUMIDITY 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.

&&

$$

GORSE
010 
WWUS81 KPHI 100004
RFWPHI

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
804 PM EDT MON APR 9 2012

DEZ001>004-MDZ008-012-015-019-020-NJZ009-010-012>027-PAZ067>071-
101000-
/O.CAN.KPHI.FW.W.0007.000000T0000Z-120410T0000Z/
/O.UPG.KPHI.FW.A.0007.120410T1400Z-120411T0000Z/
/O.NEW.KPHI.FW.W.0008.120410T1400Z-120411T0000Z/
NEW CASTLE-KENT-INLAND SUSSEX-DELAWARE BEACHES-CECIL-KENT MD-
QUEEN ANNES-TALBOT-CAROLINE-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-CHESTER-MONTGOMERY-BUCKS-DELAWARE-
PHILADELPHIA-
804 PM EDT MON APR 9 2012

...RED FLAG WARNING IN EFFECT FROM 10 AM TO 8 PM EDT TUESDAY...

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY, NEW JERSEY HAS
ISSUED A RED FLAG WARNING. IT IS IN EFFECT FROM 1000 AM UNTIL 800
PM ON TUESDAY. THE FIRE WEATHER WATCH IS NO LONGER IN EFFECT.

* AFFECTED AREA...NORTHEASTERN MARYLAND, DELAWARE, SOUTHEASTERN
  PENNSYLVANIA AND SOUTHERN AND CENTRAL NEW JERSEY.

* WINDS...WEST AT 15 TO 20 MPH WITH GUSTS UP TO 30 MPH FROM LATE
  TUESDAY MORNING INTO TUESDAY EVENING.

* RELATIVE HUMIDITY...AROUND 30 PERCENT.

* 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
  PRESCRIBED BURNS GET OUT OF CONTROL. OUTDOOR BURNING IS NOT
  RECOMMENDED.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE OCCURRING OR ARE IMMINENT. A COMBINATION OF STRONG WINDS AND
LOW RELATIVE HUMIDITY 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.

&&

$$

NJZ001-007-008-PAZ054-055-060>062-101000-
/O.CAN.KPHI.FW.W.0007.000000T0000Z-120410T0000Z/
/O.CON.KPHI.FW.A.0007.120410T1400Z-120411T0000Z/
SUSSEX-WARREN-MORRIS-CARBON-MONROE-BERKS-LEHIGH-NORTHAMPTON-
804 PM EDT MON APR 9 2012

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

* AFFECTED AREA...BERKS COUNTY, THE LEHIGH VALLEY, THE POCONOS AND
  NORTHWESTERN NEW JERSEY.

* WINDS...WEST AT 15 TO 20 MPH WITH GUSTS UP TO 30 MPH FROM LATE
  TUESDAY MORNING INTO TUESDAY EVENING.

* RELATIVE HUMIDITY...AROUND 30 PERCENT.

* 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
  PRESCRIBED BURNS GET OUT OF CONTROL. OUTDOOR BURNING IS NOT
  RECOMMENDED.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE OCCURRING OR ARE IMMINENT. A COMBINATION OF STRONG WINDS AND
LOW RELATIVE HUMIDITY 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.

&&

$$

IOVINO

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 9, 4:03 AM EDTWind AdvisoryPHIAtlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 10 more14 hr
Apr 9, 3:12 PM EDTFire Weather WatchPHIAtlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 10 more13 hr
Apr 9, 6:00 PM EDTSmall Craft AdvisoryPHI3 hr

Nearby

Red Flag Warnings in New Jersey, 2012Red Flag Warnings in Pennsylvania, 2012Red Flag Warnings in Maryland, 2012Every 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.