Alert archive / New Jersey / Red Flag Warnings in 2010
Red Flag Warning 14, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this red flag warning at Sep 7, 2010, 3:42 PM EDT for 4 states. It took effect at Sep 8, 2010, 12:00 PM EDT. It was in force for 7 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
- Sep 7, 2010, 3:42 PM EDT (19:42 UTC)
- In effect from
- Sep 8, 2010, 12:00 PM EDT
- Expired
- Sep 8, 2010, 7:00 PM EDT
- In force
- 7 hr
- Issued by
- NWS Philadelphia/Mount Holly
All 22 counties
Kent County, DE, New Castle County, DE, Cecil County, MD, Kent County, MD, Queen Anne's County, MD, 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, Berks County, PA, Delaware County, PA, Lehigh County, PA, Philadelphia County, PA
The radar
The Philadelphia radar (KDIX), 64 km from the middle of the area, began a volume at 19:41 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, 7.7 hours before the alert went out and 91 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
- 1128 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 120 m²/s²
- 0-3 km storm-relative helicity
- 166 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
092 WWUS81 KPHI 071942 RFWPHI URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 342 PM EDT TUE SEP 7 2010 DEZ001-002-MDZ008-012-015-NJZ009-010-012>027-PAZ060-061-067>071- 081000- /O.UPG.KPHI.FW.A.0007.100908T1800Z-100908T2300Z/ /O.NEW.KPHI.FW.W.0014.100908T1800Z-100908T2300Z/ NEW CASTLE-KENT-CECIL-KENT MD-QUEEN ANNES-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-BERKS-LEHIGH-CHESTER- MONTGOMERY-BUCKS-DELAWARE-PHILADELPHIA- 342 PM EDT TUE SEP 7 2010 ...RED FLAG WARNING IN EFFECT FROM 2 PM TO 7 PM EDT WEDNESDAY... THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A RED FLAG WARNING...WHICH IS IN EFFECT FROM 2 PM TO 7 PM EDT WEDNESDAY. THE FIRE WEATHER WATCH IS NO LONGER IN EFFECT. IT HAS NOT RAINED IN ALMOST TWO WEEKS ACROSS MOST OF THIS AREA. ANY SHOWERS OR ISOLATED EARLY THUNDERSTORMS WEDNESDAY MORNING WILL BE BRIEF WITH AMOUNTS UNDER ONE QUARTER INCH. SKIES WILL RAPIDLY CLEAR DURING MIDDAY WEDNESDAY WITH TEMPERATURES HEATING UP INTO THE MID TO UPPER 80S. WINDS WILL SHIFT TO WEST AND GUST BETWEEN 25 AND 35 MPH DURING MID AFTERNOON. DEWPOINTS WILL TUMBLE AND RELATIVE HUMIDITY SHOULD DROP BELOW 30 PERCENT BY 3 PM. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ HAYES
3 follow-up statements
739 WWUS81 KPHI 080800 RFWPHI URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 400 AM EDT WED SEP 8 2010 DEZ001-002-MDZ008-012-015-NJZ009-010-012>027-PAZ060-061-067>071- 082300- /O.CON.KPHI.FW.W.0014.100908T1800Z-100908T2300Z/ NEW CASTLE-KENT-CECIL-KENT MD-QUEEN ANNES-HUNTERDON-SOMERSET- MIDDLESEX-WESTERN MONMOUTH-EASTERN MONMOUTH-MERCER-SALEM- GLOUCESTER-CAMDEN-NORTHWESTERN BURLINGTON-OCEAN-CUMBERLAND- ATLANTIC-CAPE MAY-ATLANTIC COASTAL CAPE MAY-COASTAL ATLANTIC- COASTAL OCEAN-SOUTHEASTERN BURLINGTON-BERKS-LEHIGH-CHESTER- MONTGOMERY-BUCKS-DELAWARE-PHILADELPHIA- 400 AM EDT WED SEP 8 2010 ...RED FLAG WARNING REMAINS IN EFFECT FROM 2 PM THIS AFTERNOON TO 7 PM EDT THIS EVENING... A RED FLAG WARNING REMAINS IN EFFECT FROM 2 PM THIS AFTERNOON TO 7 PM EDT THIS EVENING. IT HAS NOT RAINED IN ALMOST TWO WEEKS ACROSS MOST OF THIS AREA. WHILE A COLD FRONT WILL SWEEP ACROSS OUR REGION LATER THIS MORNING, ANY SHOWERS OR AN ISOLATED THUNDERSTORM ARE EXPECTED TO BE SPARSE. BEHIND THE FRONT, TEMPERATURES WILL HEAT UP INTO THE MID TO UPPER 80S. WINDS WILL SHIFT TO THE WEST AND GUST AROUND 30 MPH, ESPECIALLY DURING THE AFTERNOON HOURS. THE DEWPOINTS ARE ANTICIPATED TO TUMBLE AND THE RELATIVE HUMIDITY VALUES SHOULD DROP BELOW 30 PERCENT BY MID AFTERNOON. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW, OR WILL SHORTLY. A COMBINATION OF STRONG WINDS, LOW RELATIVE HUMIDITY, AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ HAYES/GORSE
585 WWUS81 KPHI 081210 RFWPHI URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 810 AM EDT WED SEP 8 2010 DEZ001-002-MDZ008-012-015-NJZ009-010-012>027-PAZ060-061-067>071- 082300- /O.EXT.KPHI.FW.W.0014.100908T1600Z-100908T2300Z/ NEW CASTLE-KENT-CECIL-KENT MD-QUEEN ANNES-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-BERKS-LEHIGH-CHESTER- MONTGOMERY-BUCKS-DELAWARE-PHILADELPHIA- 810 AM EDT WED SEP 8 2010 ...RED FLAG WARNING NOW IN EFFECT FROM NOON TODAY TO 7 PM EDT THIS EVENING... THE RED FLAG WARNING IS NOW IN EFFECT FROM NOON TODAY TO 7 PM EDT THIS EVENING. IT HAS NOT RAINED IN ALMOST TWO WEEKS ACROSS MOST OF THIS AREA. WHILE A COLD FRONT IS IN THE PROCESS OF CROSSING OUR REGION THIS MORNING, ANY SHOWERS ARE EXPECTED TO BE SPARSE. BEHIND THE FRONT, TEMPERATURES WILL HEAT UP INTO THE MID TO UPPER 80S. WINDS WILL SHIFT TO THE WEST AND GUST AROUND 30 MPH, ESPECIALLY DURING THE AFTERNOON HOURS. THE DEWPOINTS ARE ANTICIPATED TO TUMBLE AND THE RELATIVE HUMIDITY VALUES SHOULD DROP BELOW 30 PERCENT THIS AFTERNOON. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW, OR WILL SHORTLY. A COMBINATION OF STRONG WINDS, LOW RELATIVE HUMIDITY, AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ RPW
433 WWUS81 KPHI 082304 RFWPHI URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 704 PM EDT WED SEP 8 2010 DEZ001-002-MDZ008-012-015-NJZ009-010-012>027-PAZ060-061-067>071- 090015- /O.EXP.KPHI.FW.W.0014.000000T0000Z-100908T2300Z/ NEW CASTLE-KENT-CECIL-KENT MD-QUEEN ANNES-HUNTERDON-SOMERSET- MIDDLESEX-WESTERN MONMOUTH-EASTERN MONMOUTH-MERCER-SALEM- GLOUCESTER-CAMDEN-NORTHWESTERN BURLINGTON-OCEAN-CUMBERLAND- ATLANTIC-CAPE MAY-ATLANTIC COASTAL CAPE MAY-COASTAL ATLANTIC- COASTAL OCEAN-SOUTHEASTERN BURLINGTON-BERKS-LEHIGH-CHESTER- MONTGOMERY-BUCKS-DELAWARE-PHILADELPHIA- 704 PM EDT WED SEP 8 2010 ...RED FLAG WARNING HAS EXPIRED... THE RED FLAG WARNING IS NO LONGER IN EFFECT WHILE RELATIVE HUMIDITY LEVELS ARE STILL LOW, WINDS ARE IN THE PROCESS OF RAPIDLY DIMINISHING AND WILL BE BELOW REG FLAG WARNING CRITERIA SHORTLY IF NOT ALREADY. WHILE AT THIS MOMENT WE ARE NOT ANTICIPATING RED FLAG WARNING CRITERIA BEING MET ON THURSDAY, THERE WILL BE AN INCREASED FIRE DANGER THREAT THURSDAY AFTERNOON DUE TO HOW DRY THE CURRENT AIR MASS IS AND THE LACK OF RAIN THE PAST TWO WEEKS. $$
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 7, 4:27 AM EDT | Fire Weather Watch | PHI | Berks, Delaware, Lehigh, Philadelphia | 11 hr |
| Sep 7, 6:27 PM EDT | Small Craft Advisory | PHI | 33 hr |
Nearby
Red Flag Warnings in New Jersey, 2010Red Flag Warnings in Pennsylvania, 2010Red Flag Warnings in Maryland, 2010Every red flag warning in 2010
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.