Alert archive / New Jersey / Red Flag Warnings in 2016

Red Flag Warning 3, NWS New York, NY

April 21, 20165 counties in New Jersey

NWS New York, NY issued this red flag warning at Apr 21, 2016, 10:57 AM EDT for 5 counties in New Jersey. It took effect at Apr 21, 2016, 12:00 PM EDT. It was in force for 4 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 21, 2016, 10:57 AM EDT (14:57 UTC)
In effect from
Apr 21, 2016, 12:00 PM EDT
Expired
Apr 21, 2016, 4:00 PM EDT
In force
4 hr
Issued by
NWS New York, NY

Counties Bergen County, NJ, Essex County, NJ, Hudson County, NJ, Passaic County, NJ, Union County, NJ

The radar

The Philadelphia radar (KDIX), 100 km from the middle of the area, began a volume at 15:03 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 12:00Z, 3.0 hours before the alert went out and 112 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, Brookhaven, NY at 12:00Z on 2016-04-21Temperature 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, Brookhaven, NY at 12:00Z on 2016-04-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 151 square meters per square second.19395878Sfc1 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
2246 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
151 m²/s²
0-3 km storm-relative helicity
179 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

559 
WWUS81 KOKX 211457
RFWOKX

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE NEW YORK NY
1057 AM EDT THU APR 21 2016

...CONDITIONS FAVORABLE FOR RAPID BRUSH FIRE SPREAD THIS
AFTERNOON...

NJZ002-004-006-103>108-NYZ071>075-176-178-212200-
/O.NEW.KOKX.FW.W.0003.160421T1600Z-160421T2200Z/
WESTERN PASSAIC-EASTERN PASSAIC-HUDSON-WESTERN BERGEN-
EASTERN BERGEN-WESTERN ESSEX-EASTERN ESSEX-WESTERN UNION-
EASTERN UNION-SOUTHERN WESTCHESTER-NEW YORK (MANHATTAN)-BRONX-
RICHMOND (STATEN ISLAND)-KINGS (BROOKLYN)-NORTHERN QUEENS-
SOUTHERN QUEENS-
1057 AM EDT THU APR 21 2016

...RED FLAG WARNING IN EFFECT UNTIL 6 PM EDT THIS EVENING...

THE NATIONAL WEATHER SERVICE IN UPTON HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT UNTIL 6 PM EDT THIS EVENING.

* AFFECTED AREA...NORTHEAST NEW JERSEY...NEW YORK CITY...AND
  SOUTHERN WESTCHESTER COUNTY NEW YORK.

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

* RELATIVE HUMIDITY...20 TO 30 PERCENT.

* TIMING...THIS AFTERNOON.

* IMPACTS...RAPID FIRE SPREAD IF IGNITION OCCURS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EXPECTED OR OCCURRING. A COMBINATION OF STRONG WINDS...LOW
RELATIVE HUMIDITY...AND DRY FUELS WILL CREATE A SIGNIFICANTLY
ELEVATED FIRE GROWTH POTENTIAL.

&&

$$

FOR MORE INFORMATION FROM THE NATIONAL WEATHER SERVICE PLEASE VISIT...
HTTP://WEATHER.GOV/NYC (ALL LOWER CASE)
1 follow-up statement
170 
WWUS81 KOKX 212000
RFWOKX

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE NEW YORK NY
400 PM EDT THU APR 21 2016

NJZ002-004-006-103>108-NYZ071>075-176-178-212100-
/O.CAN.KOKX.FW.W.0003.000000T0000Z-160421T2200Z/
WESTERN PASSAIC-EASTERN PASSAIC-HUDSON-WESTERN BERGEN-
EASTERN BERGEN-WESTERN ESSEX-EASTERN ESSEX-WESTERN UNION-
EASTERN UNION-SOUTHERN WESTCHESTER-NEW YORK (MANHATTAN)-BRONX-
RICHMOND (STATEN ISLAND)-KINGS (BROOKLYN)-NORTHERN QUEENS-
SOUTHERN QUEENS-
400 PM EDT THU APR 21 2016

...RED FLAG WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN UPTON HAS CANCELLED THE RED FLAG
WARNING.

LOW LEVEL RELATIVE HUMIDITY WILL INCREASE AS DEWPOINTS INCREASE
INTO THE EARLY EVENING AND TEMPERATURES DECREASE. WIND GUSTS ARE
NOT AS FREQUENT AND HAVE BEEN MOSTLY BELOW 25 MPH.

$$

FOR MORE INFORMATION FROM THE NATIONAL WEATHER SERVICE PLEASE VISIT...
HTTP://WEATHER.GOV/NYC (ALL LOWER CASE)

The office that day

Everything else NWS New York, NY issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 21, 4:07 AM EDTSmall Craft AdvisoryOKX15 hr

Nearby

Red Flag Warnings in New Jersey, 2016Red Flag Warnings in New York, 2016Every red flag warning 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.