Alert archive / New Jersey / Red Flag Warnings in 2015
Red Flag Warning 2, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this red flag warning at Apr 18, 2015, 3:12 AM EDT for 8 counties in New Jersey; 7 counties in Pennsylvania. It took effect at Apr 18, 2015, 3:00 PM EDT. It was in force for 5 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 18, 2015, 3:12 AM EDT (07:12 UTC)
- In effect from
- Apr 18, 2015, 3:00 PM EDT
- Expired
- Apr 18, 2015, 8:00 PM EDT
- In force
- 5 hr
- Issued by
- NWS Philadelphia/Mount Holly
Counties Hunterdon County, NJ, Mercer County, NJ, Middlesex County, NJ, Monmouth County, NJ, Morris 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
The radar
The Philadelphia radar (KDIX), 91 km from the middle of the area, began a volume at 07:13 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 00:00Z, 7.2 hours before the alert went out and 184 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
- 35 J/kg
- Mixed-layer CIN
- -59 J/kg
- Mixed-layer LCL
- 835 m above ground
- 0-6 km bulk shear
- 43 kt
- 0-1 km storm-relative helicity
- 126 m²/s²
- 0-3 km storm-relative helicity
- 149 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
543 WWUS81 KPHI 180712 RFWPHI URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 312 AM EDT SAT APR 18 2015 NJZ001-007>010-012-013-015-PAZ054-055-060>062-103-105-106-190000- /O.UPG.KPHI.FW.A.0001.150418T1900Z-150419T0000Z/ /O.NEW.KPHI.FW.W.0002.150418T1900Z-150419T0000Z/ SUSSEX-WARREN-MORRIS-HUNTERDON-SOMERSET-MIDDLESEX- WESTERN MONMOUTH-MERCER-CARBON-MONROE-BERKS-LEHIGH-NORTHAMPTON- WESTERN MONTGOMERY-UPPER BUCKS-LOWER BUCKS- 312 AM EDT SAT APR 18 2015 ...RED FLAG WARNING IN EFFECT FROM 3 PM THIS AFTERNOON TO 8 PM EDT THIS EVENING... THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A RED FLAG WARNING. IT IS IN EFFECT FROM 300 PM UNTIL 800 PM. * AFFECTED AREAS...BERKS COUNTY, UPPER MONTGOMERY COUNTY, BUCKS COUNTY, THE LEHIGH VALLEY AND THE POCONOS IN PENNSYLVANIA, AS WELL AS MUCH OF NORTHWESTERN AND CENTRAL NEW JERSEY. * WIND...WEST AT 10 TO 15 MPH FROM MID AFTERNOON INTO EARLY EVENING WITH GUSTS UP TO 20 OR 25 MPH. * HUMIDITY...DROPPING TO 20 TO 25 PERCENT DURING THE AFTERNOON. * TEMPERATURES...AFTERNOON HIGHS GENERALLY FROM 75 TO 80 DEGREES. * IMPACTS...ANY WILDFIRES THAT DEVELOP DURING THE AFTERNOON WILL HAVE THE POTENTIAL TO SPREAD RAPIDLY. OUTDOOR BURNING IS NOT RECOMMENDED. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EXPECTED 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. && $$ IOVINO
1 follow-up statement
176 WWUS81 KPHI 182345 RFWPHI URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 745 PM EDT SAT APR 18 2015 NJZ001-007>010-012-013-015-PAZ054-055-060>062-103-105-106-190045- /O.EXP.KPHI.FW.W.0002.000000T0000Z-150419T0000Z/ SUSSEX-WARREN-MORRIS-HUNTERDON-SOMERSET-MIDDLESEX- WESTERN MONMOUTH-MERCER-CARBON-MONROE-BERKS-LEHIGH-NORTHAMPTON- WESTERN MONTGOMERY-UPPER BUCKS-LOWER BUCKS- 745 PM EDT SAT APR 18 2015 ...RED FLAG WARNING WILL EXPIRE AT 8 PM EDT THIS EVENING... $$
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 18, 3:48 PM EDT | Small Craft Advisory | PHI | 3 days |
Nearby
Red Flag Warnings in New Jersey, 2015Red Flag Warnings in Pennsylvania, 2015Every red flag warning in 2015
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.