Alert archive / New Jersey / Red Flag Warnings in 2010
Red Flag Warning 15, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this red flag warning at Sep 14, 2010, 11:00 AM EDT for 4 states. It took effect at Sep 14, 2010, 1:00 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
- Sep 14, 2010, 11:00 AM EDT (15:00 UTC)
- In effect from
- Sep 14, 2010, 1:00 PM EDT
- Expired
- Sep 14, 2010, 6:01 PM EDT
- In force
- 5 hr
- Issued by
- NWS Philadelphia/Mount Holly
All 21 counties
Kent County, DE, New Castle County, DE, Sussex County, DE, Caroline County, MD, Cecil County, MD, Kent County, MD, Queen Anne's County, MD, Talbot County, MD, Atlantic County, NJ, Burlington County, NJ, Camden County, NJ, Cape May County, NJ, Cumberland County, NJ, Gloucester County, NJ, Mercer County, NJ, Ocean County, NJ, Salem County, NJ, Berks County, PA, Delaware County, PA, Lehigh County, PA, Philadelphia County, PA
The radar
The Dover AFB radar (KDOX), 82 km from the middle of the area, began a volume at 14:59 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, 3.0 hours before the alert went out and 65 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
- 2077 m above ground
- 0-6 km bulk shear
- 49 kt
- 0-1 km storm-relative helicity
- 145 m²/s²
- 0-3 km storm-relative helicity
- 249 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
306 WWUS81 KPHI 141500 RFWPHI URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 1100 AM EDT TUE SEP 14 2010 DEZ001>003-MDZ008-012-015-019-020-NJZ015>023-027-PAZ060-061- 067>071-142200- /O.NEW.KPHI.FW.W.0015.100914T1700Z-100914T2200Z/ NEW CASTLE-KENT-INLAND SUSSEX-CECIL-KENT MD-QUEEN ANNES-TALBOT- CAROLINE-MERCER-SALEM-GLOUCESTER-CAMDEN-NORTHWESTERN BURLINGTON- OCEAN-CUMBERLAND-ATLANTIC-CAPE MAY-SOUTHEASTERN BURLINGTON-BERKS- LEHIGH-CHESTER-MONTGOMERY-BUCKS-DELAWARE-PHILADELPHIA- 1100 AM EDT TUE SEP 14 2010 ...RED FLAG WARNING IN EFFECT UNTIL 6 PM EDT THIS EVENING... THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A RED FLAG WARNING...WHICH IS IN EFFECT UNTIL 6 PM EDT THIS EVENING. THIS WARNING COVERS MUCH OF SOUTHERN NEW JERSEY...SOUTHEAST PENNSYLVANIA...MARYLANDS EASTERN SHORE AND DELAWARE. DESPITE THE SHOWERY RAINS OF SUNDAY...FUELS ARE DRYING OUT RAPIDLY AGAIN AND THIS AFTERNOON...NORTHWEST WINDS WILL GUST TO 25 MPH WITH RELATIVE HUMIDITY FORECAST TO DROP TO NEAR 25 PERCENT. THE MOST PERSISTENT PERIOD OF GUSTY WINDS AND LOWEST HUMIDITY WILL OCCUR BETWEEN 2 PM AND 4 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. && $$ DRAG
1 follow-up statement
757 WWUS81 KPHI 142201 RFWPHI URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 601 PM EDT TUE SEP 14 2010 DEZ001>003-MDZ008-012-015-019-020-NJZ015>023-027-PAZ060-061- 067>071-142315- /O.CAN.KPHI.FW.W.0015.000000T0000Z-100914T2200Z/ NEW CASTLE-KENT-INLAND SUSSEX-CECIL-KENT MD-QUEEN ANNES-TALBOT- CAROLINE-MERCER-SALEM-GLOUCESTER-CAMDEN-NORTHWESTERN BURLINGTON- OCEAN-CUMBERLAND-ATLANTIC-CAPE MAY-SOUTHEASTERN BURLINGTON-BERKS- LEHIGH-CHESTER-MONTGOMERY-BUCKS-DELAWARE-PHILADELPHIA- 601 PM EDT TUE SEP 14 2010 ...RED FLAG WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS CANCELLED THE RED FLAG WARNING. AS WINDS HAVE DIMINISHED LATE THIS AFTERNOON...THE RED FLAG WARNING HAS BEEN CANCELLED. FIRE WEATHER CONDITIONS WILL BE SOMEWHAT ENHANCED AGAIN WEDNESDAY. FUELS WILL CONTINUE TO BE DRY AND AFTERNOON RELATIVE HUMIDITIES WILL BE LOW AGAIN WEDNESDAY AFTERNOON...BUT WIND SPEEDS WILL BE MARGINAL AND GUST ONLY OCCASIONALLY TO 20 MILES AN HOUR. $$
Nearby
Red Flag Warnings in New Jersey, 2010Red Flag Warnings in Maryland, 2010Red Flag Warnings in Pennsylvania, 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.