Alert archive / New Jersey / Red Flag Warnings in 2013

Red Flag Warning 2, NWS Philadelphia/Mount Holly

November 23, 20134 states

NWS Philadelphia/Mount Holly issued this red flag warning at Nov 23, 2013, 3:43 PM EST for 4 states. It took effect at Nov 24, 2013, 10:00 AM EST. It was in force for 8 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
Nov 23, 2013, 3:43 PM EST (20:43 UTC)
In effect from
Nov 24, 2013, 10:00 AM EST
Expired
Nov 24, 2013, 6:00 PM EST
In force
8 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, Warren County, NJ, Berks County, PA, Bucks County, PA, Chester County, PA, Delaware County, PA, Lehigh County, PA, Montgomery County, PA, Northampton County, PA, Philadelphia County, PA

The radar

The Philadelphia radar (KDIX), 69 km from the middle of the area, began a volume at 20:40 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 12:00Z, 8.7 hours before the alert went out and 214 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 12:00Z on 2013-11-23Temperature 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 12:00Z on 2013-11-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -158 square meters per square second.1939587897117136Sfc1 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
1271 m above ground
0-6 km bulk shear
83 kt
0-1 km storm-relative helicity
-158 m²/s²
0-3 km storm-relative helicity
31 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.

724 
WWUS81 KPHI 232043
RFWPHI

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
343 PM EST SAT NOV 23 2013

DEZ001>004-MDZ008-012-015-019-020-NJZ007>010-012>027-PAZ060>062-
070-071-101>106-241145-
/O.NEW.KPHI.FW.W.0002.131124T1500Z-131124T2300Z/
NEW CASTLE-KENT-INLAND SUSSEX-DELAWARE BEACHES-CECIL-KENT MD-
QUEEN ANNES-TALBOT-CAROLINE-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-BERKS-LEHIGH-NORTHAMPTON-
DELAWARE-PHILADELPHIA-WESTERN CHESTER-EASTERN CHESTER-
WESTERN MONTGOMERY-EASTERN MONTGOMERY-UPPER BUCKS-LOWER BUCKS-
343 PM EST SAT NOV 23 2013

...RED FLAG WARNING IN EFFECT FROM 10 AM TO 6 PM EST SUNDAY... 

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A RED FLAG
WARNING WHICH IS IN EFFECT FROM 10 AM TO 6 PM EST SUNDAY.

* LOCATIONS...MUCH OF EASTERN PENNSYLVANIA...MARYLANDS EASTERN
  SHORE...ALL OF DELAWARE AND ALL OF NEW JERSEY EXCEPT SUSSEX
  COUNTY.

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

* RELATIVE HUMIDITY...AS LOW AS 20 TO 25 PERCENT.

* TEMPERATURES...FROM THE MID 20S TO THE MID 30S.

* IMPACTS...DESPITE THE UNUSUALLY COLD TEMPERATURES...ANY OUTDOOR
  FINE FUEL FIRES HAVE THE POTENTIAL TO SPREAD MORE RAPIDLY THAN
  USUAL DUE TO THE STRONG NORTHWEST WINDS AND THE GENERALLY VERY
  DRY CONDITIONS OF THE PAST 3 MONTHS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW...OR WILL SHORTLY DUE TO A COMBINATION
OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND DRY FUELS. ANY
FIRES THAT DEVELOP MAY QUICKLY GET OUT OF CONTROL AND BECOME
DIFFICULT TO CONTAIN.

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

&&

$$
2 follow-up statements
045 
WWUS81 KPHI 240911
RFWPHI

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
411 AM EST SUN NOV 24 2013

DEZ001>004-MDZ008-012-015-019-020-NJZ007>010-012>027-PAZ060>062-
070-071-101>106-242300-
/O.CON.KPHI.FW.W.0002.131124T1500Z-131124T2300Z/
NEW CASTLE-KENT-INLAND SUSSEX-DELAWARE BEACHES-CECIL-KENT MD-
QUEEN ANNES-TALBOT-CAROLINE-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-BERKS-LEHIGH-NORTHAMPTON-
DELAWARE-PHILADELPHIA-WESTERN CHESTER-EASTERN CHESTER-
WESTERN MONTGOMERY-EASTERN MONTGOMERY-UPPER BUCKS-LOWER BUCKS-
411 AM EST SUN NOV 24 2013

...RED FLAG WARNING REMAINS IN EFFECT FROM 10 AM THIS MORNING TO
6 PM EST THIS EVENING...

* WINDS...NORTHWEST 20 TO 25 MPH WITH GUSTS UP TO 40 MPH.

* RELATIVE HUMIDITY...LOWERING TO AROUND 25 PERCENT TOWARD MIDDAY.

* TEMPERATURES...RANGING FROM THE MID 20S TO MID 30S.

* IMPACTS...DESPITE THE UNUSUALLY COLD TEMPERATURES, ANY OUTDOOR
  FINE FUEL FIRES HAVE THE POTENTIAL TO SPREAD MORE RAPIDLY THAN
  USUAL DUE TO THE STRONG NORTHWEST WINDS AND THE GENERALLY VERY
  DRY CONDITIONS OF THE PAST THREE MONTHS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW, OR WILL SHORTLY DUE TO A COMBINATION OF
STRONG WINDS, LOW RELATIVE HUMIDITY AND DRY FUELS. ANY FIRES THAT
DEVELOP MAY QUICKLY GET OUT OF CONTROL AND BECOME DIFFICULT TO
CONTAIN.

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

&&

$$
963 
WWUS81 KPHI 242054
RFWPHI

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
354 PM EST SUN NOV 24 2013

DEZ001>004-MDZ008-012-015-019-020-NJZ007>010-012>027-PAZ060>062-
070-071-101>106-242300-
/O.CON.KPHI.FW.W.0002.000000T0000Z-131124T2300Z/
NEW CASTLE-KENT-INLAND SUSSEX-DELAWARE BEACHES-CECIL-KENT MD-
QUEEN ANNES-TALBOT-CAROLINE-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-BERKS-LEHIGH-NORTHAMPTON-
DELAWARE-PHILADELPHIA-WESTERN CHESTER-EASTERN CHESTER-
WESTERN MONTGOMERY-EASTERN MONTGOMERY-UPPER BUCKS-LOWER BUCKS-
354 PM EST SUN NOV 24 2013

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM EST THIS
EVENING...

* WINDS...NORTHWEST 15 TO 20 MPH WITH GUSTS UP TO 40 MPH.

* RELATIVE HUMIDITY...AS LOW AS 25 PERCENT.

* TEMPERATURES...IN THE MID 20S TO MID 30S.

* IMPACTS...DESPITE THE UNUSUALLY COLD TEMPERATURES... ANY 
  OUTDOOR FINE FUEL FIRES HAVE THE POTENTIAL TO SPREAD MORE 
  RAPIDLY THAN USUAL DUE TO THE STRONG NORTHWEST WINDS AND THE 
  GENERALLY VERY DRY CONDITIONS OF THE PAST THREE MONTHS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW... OR WILL SHORTLY DUE TO A COMBINATION
OF STRONG WINDS... LOW RELATIVE HUMIDITY AND DRY FUELS. ANY FIRES
THAT DEVELOP MAY QUICKLY GET OUT OF CONTROL AND BECOME DIFFICULT
TO CONTAIN.

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

&&

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Nov 23, 5:23 PM ESTSpecial Weather StatementPHISussex52 min
Nov 23, 6:21 PM ESTWind AdvisoryPHISussex19 hr
Nov 23, 6:42 PM ESTSpecial Weather StatementPHIHunterdon, Morris, Somerset, Sussex, Warren48 min

Nearby

Red Flag Warnings in New Jersey, 2013Red Flag Warnings in Pennsylvania, 2013Red Flag Warnings in Maryland, 2013Every red flag warning in 2013

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.