Alert archive / New Jersey / Fire Weather Watches in 2016

Fire Weather Watch 2, NWS Philadelphia/Mount Holly

April 20, 20168 counties in Pennsylvania; 12 counties in New Jersey

NWS Philadelphia/Mount Holly issued this fire weather watch at Apr 20, 2016, 3:19 PM EDT for 8 counties in Pennsylvania; 12 counties in New Jersey. It took effect at Apr 21, 2016, 11:00 AM EDT. It was in force for .

The area

The counties it named.

The facts

Issued
Apr 20, 2016, 3:19 PM EDT (19:19 UTC)
In effect from
Apr 21, 2016, 11:00 AM EDT
Expired
Apr 21, 2016, 3:31 AM EDT
In force
Issued by
NWS Philadelphia/Mount Holly

Counties Burlington County, NJ, Camden County, NJ, Gloucester County, NJ, Hunterdon County, NJ, Mercer County, NJ, Middlesex County, NJ, Monmouth County, NJ, Morris County, NJ, Ocean County, NJ, Somerset County, NJ, Sussex County, NJ, Warren County, NJ, Berks County, PA, Bucks County, PA, Carbon County, PA, Lehigh County, PA, Monroe County, PA, Montgomery County, PA, Northampton County, PA, Philadelphia County, PA

The radar

The Philadelphia radar (KDIX), 72 km from the middle of the area, began a volume at 19:20 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 143 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 2016-04-20Temperature 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 2016-04-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 2 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
2634 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
2 m²/s²
0-3 km storm-relative helicity
37 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

212 
WWUS81 KPHI 201919
RFWPHI

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
319 PM EDT WED APR 20 2016

NJZ001-007>010-012-013-015-017>020-027-PAZ054-055-060>062-071-
103>106-210900-
/O.NEW.KPHI.FW.A.0002.160421T1500Z-160421T2100Z/
SUSSEX-WARREN-MORRIS-HUNTERDON-SOMERSET-MIDDLESEX-
WESTERN MONMOUTH-MERCER-GLOUCESTER-CAMDEN-NORTHWESTERN BURLINGTON-
OCEAN-SOUTHEASTERN BURLINGTON-CARBON-MONROE-BERKS-LEHIGH-
NORTHAMPTON-PHILADELPHIA-WESTERN MONTGOMERY-EASTERN MONTGOMERY-
UPPER BUCKS-LOWER BUCKS-
319 PM EDT WED APR 20 2016

...FIRE WEATHER WATCH IN EFFECT FROM LATE THURSDAY MORNING THROUGH
THURSDAY AFTERNOON FOR LOW RELATIVE HUMIDITIES AND BREEZY
CONDITIONS. 

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A FIRE
WEATHER WATCH FOR LOW RELATIVE HUMIDITIES AND BREEZY
CONDITIONS...WHICH IS IN EFFECT FROM THURSDAY MORNING THROUGH
THURSDAY AFTERNOON.

* AFFECTED AREA... A LARGE PORTION OF EASTERN PENNSYLVANIA AND THE
  NORTHERN THREE QUARTERS OF NEW JERSEY.

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

* TIMING...BEGINNING BETWEEN 11 AM AND 1 PM AND PROBABLY ENDING
  AROUND 5 PM. 

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

* TEMPERATURES...IN THE UPPER 60S TO LOWER 70S.

* ADDITIONAL INFORMATION...THERE HAVE BEEN WIDELY SCATTERED WILD
  FIRES THE PAST COUPLE OF DAYS AND IT HASN'T RAINED SINCE TUESDAY
  OF LAST WEEK.

* IMPACTS...ANY FIRES THAT DEVELOP MAY QUICKLY GET OUT OF CONTROL
  AND BECOME DIFFICULT TO CONTAIN.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FIRE WEATHER WATCH MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE FORECAST TO OCCUR DUE TO A COMBINATION OF STRONG WINDS...LOW
RELATIVE HUMIDITIES...AND DRY FUELS. LISTEN FOR LATER FORECASTS
AND POSSIBLE RED FLAG WARNINGS.

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

&&

$$
DRAG
2 follow-up statements
698 
WWUS81 KPHI 210008
RFWPHI

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
808 PM EDT WED APR 20 2016

NJZ001-007>010-012-013-015-017>020-027-PAZ054-055-060>062-071-
103>106-210900-
/O.CON.KPHI.FW.A.0002.160421T1500Z-160421T2100Z/
SUSSEX-WARREN-MORRIS-HUNTERDON-SOMERSET-MIDDLESEX-
WESTERN MONMOUTH-MERCER-GLOUCESTER-CAMDEN-NORTHWESTERN BURLINGTON-
OCEAN-SOUTHEASTERN BURLINGTON-CARBON-MONROE-BERKS-LEHIGH-
NORTHAMPTON-PHILADELPHIA-WESTERN MONTGOMERY-EASTERN MONTGOMERY-
UPPER BUCKS-LOWER BUCKS-
808 PM EDT WED APR 20 2016

...FIRE WEATHER WATCH REMAINS IN EFFECT FROM THURSDAY MORNING
THROUGH THURSDAY AFTERNOON FOR LOW RELATIVE HUMIDITY AND BREEZY
CONDITIONS...

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

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

* IMPACTS...ANY FIRES THAT DEVELOP MAY QUICKLY GET OUT OF 
  CONTROL AND BECOME DIFFICULT TO CONTAIN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FIRE WEATHER WATCH MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE FORECAST TO OCCUR DUE TO A COMBINATION OF STRONG WINDS...LOW
RELATIVE HUMIDITIES...AND DRY FUELS. LISTEN FOR LATER FORECASTS
AND POSSIBLE RED FLAG WARNINGS.

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

&&

$$
596 
WWUS81 KPHI 210731
RFWPHI

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
331 AM EDT THU APR 21 2016


NJZ001-007>010-012-013-015-017>020-027-PAZ054-055-060>062-071-
103>106-210845-
/O.CAN.KPHI.FW.A.0002.160421T1500Z-160421T2100Z/
SUSSEX-WARREN-MORRIS-HUNTERDON-SOMERSET-MIDDLESEX-
WESTERN MONMOUTH-MERCER-GLOUCESTER-CAMDEN-NORTHWESTERN BURLINGTON-
OCEAN-SOUTHEASTERN BURLINGTON-CARBON-MONROE-BERKS-LEHIGH-
NORTHAMPTON-PHILADELPHIA-WESTERN MONTGOMERY-EASTERN MONTGOMERY-
UPPER BUCKS-LOWER BUCKS-
331 AM EDT THU APR 21 2016

...FIRE WEATHER WATCH IS CANCELLED FOR SOUTHEASTERN PENNSYLVANIA
AND NEW JERSEY...

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS CANCELLED THE
FIRE WEATHER WATCH.

ALTHOUGH CONDITIONS ARE NOT EXPECTED TO QUITE REACH CRITICAL FIRE
WEATHER CRITERIA...ELEVATED FIRE DANGER IS STILL EXPECTED THROUGH
THE DAY TODAY. A SPECIAL WEATHER STATEMENT HAS BEEN ISSUED FOR THE
ELEVATED FIRE WEATHER DANGER.

$$

SFJ

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 20, 3:10 PM EDTFrost AdvisoryPHIAtlantic, Burlington, Hunterdon, Morris, Ocean, Sussex and 1 more17 hr

Nearby

Fire Weather Watches in New Jersey, 2016Fire Weather Watches in Pennsylvania, 2016Every fire weather watch in 2016

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.