Alert archive / New Jersey / Red Flag Warnings in 2011
Red Flag Warning 5, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this red flag warning at Mar 29, 2011, 4:05 AM EDT for Delaware County, Philadelphia County, Pennsylvania; 13 counties in New Jersey. It took effect at Mar 29, 2011, 12:00 PM EDT. It was in force for 6 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
- Mar 29, 2011, 4:05 AM EDT (08:05 UTC)
- In effect from
- Mar 29, 2011, 12:00 PM EDT
- Expired
- Mar 29, 2011, 6:00 PM EDT
- In force
- 6 hr
- 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
Brookhaven, NY (KOKX), launched 00:00Z, 8.1 hours before the alert went out and 196 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2448 m above ground
- 0-6 km bulk shear
- 47 kt
- 0-1 km storm-relative helicity
- 84 m²/s²
- 0-3 km storm-relative helicity
- 113 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
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 THE FIRE WEATHER WATCH IS NO LONGER IN EFFECT.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. && $$
1 follow-up statement
301 WWUS81 KPHI 292202 RFWPHI URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 602 PM EDT TUE MAR 29 2011 NJZ009-010-012>027-PAZ067>071-292315- /O.EXP.KPHI.FW.W.0005.000000T0000Z-110329T2200Z/ HUNTERDON-SOMERSET-MIDDLESEX-WESTERN MONMOUTH-EASTERN MONMOUTH- MERCER-SALEM-GLOUCESTER-CAMDEN-NORTHWESTERN BURLINGTON-OCEAN- CUMBERLAND-ATLANTIC-CAPE MAY-ATLANTIC COASTAL CAPE MAY- COASTAL ATLANTIC-COASTAL OCEAN-SOUTHEASTERN BURLINGTON-CHESTER- MONTGOMERY-BUCKS-DELAWARE-PHILADELPHIA- 602 PM EDT TUE MAR 29 2011 ...RED FLAG WARNING HAS EXPIRED... THE RED FLAG WARNING EXPIRED AT 600 PM AND IS NO LONGER IN EFFECT. $$ SZATKOWSKI
Nearby
Red Flag Warnings in New Jersey, 2011Red Flag Warnings in Pennsylvania, 2011Every red flag warning 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.