Alert archive / New Jersey / Fire Weather Watches in 2011

Fire Weather Watch 2, NWS Philadelphia/Mount Holly

March 28, 201113 counties in New Jersey; Delaware County, Philadelphia County, Pennsylvania

NWS Philadelphia/Mount Holly issued this fire weather watch at Mar 28, 2011, 6:02 PM EDT for 13 counties in New Jersey; Delaware County, Philadelphia County, Pennsylvania. It took effect at Mar 29, 2011, 12:00 PM EDT. It was in force for .

The area

The counties it named.

The facts

Issued
Mar 28, 2011, 6:02 PM EDT (22:02 UTC)
In effect from
Mar 29, 2011, 12:00 PM EDT
Expired
Mar 29, 2011, 4:05 AM EDT
In force
Issued by
NWS Philadelphia/Mount Holly

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, Ocean County, NJ, Salem County, NJ, Somerset County, NJ, Delaware County, PA, Philadelphia County, PA

The nearest sounding before it

Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 10.0 hours before the alert went out and 120 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 2011-03-28Temperature 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 2011-03-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -10 square meters per square second.1939587897117136156Sfc1 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
1764 m above ground
0-6 km bulk shear
68 kt
0-1 km storm-relative helicity
-10 m²/s²
0-3 km storm-relative helicity
59 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.

522 
WWUS81 KPHI 282202
RFWPHI

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
602 PM EDT MON MAR 28 2011

NJZ009-010-012>027-PAZ067>071-291015-
/O.EXP.KPHI.FW.W.0004.000000T0000Z-110328T2200Z/
/O.NEW.KPHI.FW.A.0002.110329T1600Z-110329T2200Z/
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-
602 PM EDT MON MAR 28 2011

...FIRE WEATHER WATCH IN EFFECT TUESDAY AFTERNOON...
...RED FLAG WARNING HAS EXPIRED...

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A FIRE
WEATHER WATCH...WHICH IS IN EFFECT TUESDAY AFTERNOON. THE RED
FLAG WARNING IS NO LONGER IN EFFECT. 

* LOCATIONS...MOST OF THE NEW JERSEY EXCEPT THE NORTHWEST CORNER 
  AS WELL AS MUCH OF SOUTHEASTERN PENNSYLVANIA NEAR THE DELAWARE 
  RIVER. 

* NORTHWEST WIND GUSTS ARE FORECAST TO REACH 20 MPH FOR SEVERAL
  HOURS TUESDAY AFTERNOON...COINCIDENT WITH RELATIVE HUMIDITY
  BELOW 30 PERCENT AND 10 HOUR LAG TIME FUELS WELL BELOW 10
  PERCENT.

* THIS COMBINATION OF FACTORS WOULD LEAD TO A MORE RAPID RATE OF
  SPREAD OF ANY FINE FUEL FIRES THAT MAY 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.

&&

$$
1 follow-up statement
398 
WWUS81 KPHI 290805
RFWPHI

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
405 AM EDT TUE MAR 29 2011

NJZ009-010-012>027-PAZ067>071-292200-
/O.UPG.KPHI.FW.A.0002.110329T1600Z-110329T2200Z/
/O.NEW.KPHI.FW.W.0005.110329T1600Z-110329T2200Z/
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-
405 AM EDT TUE MAR 29 2011

...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 6 PM EDT THIS
EVENING...

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT FROM NOON TODAY TO 6 PM EDT THIS
EVENING. THE FIRE WEATHER WATCH IS NO LONGER IN EFFECT. 

* LOCATIONS...MOST OF THE NEW JERSEY EXCEPT THE NORTHWEST CORNER 
  AS WELL AS MUCH OF SOUTHEASTERN PENNSYLVANIA NEAR THE DELAWARE 
  RIVER. 

* NORTHWEST WIND GUSTS ARE FORECAST TO REACH 20 MPH FOR SEVERAL
  HOURS THIS AFTERNOON...COINCIDENT WITH RELATIVE HUMIDITY AT OR
  BELOW 30 PERCENT AND FINE FUEL MOISTURE WELL BELOW 10 PERCENT.

* THIS COMBINATION OF FACTORS WILL LEAD TO A MORE RAPID RATE OF
  SPREAD OF ANY FINE FUEL FIRES THAT MAY DEVELOP.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
WILL DEVELOP DURING THE DAY TODAY. A COMBINATION OF GUSTY WINDS...
LOW RELATIVE HUMIDITY...AND DRY FINE FUELS WILL CREATE RAPID FIRE
GROWTH POTENTIAL.

&&

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 27, 9:37 PM EDTSmall Craft AdvisoryPHI18 hr
Mar 28, 4:35 AM EDTRed Flag WarningPHIAtlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 7 more13 hr

Nearby

Fire Weather Watches in New Jersey, 2011Fire Weather Watches in Pennsylvania, 2011Every fire weather watch in 2011

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.