Alert archive / New Jersey / Red Flag Warnings in 2010
Red Flag Warning 7, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this red flag warning at May 9, 2010, 4:02 AM EDT for 4 states. It took effect at May 9, 2010, 10:00 AM EDT. It was in force for 10 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
- May 9, 2010, 4:02 AM EDT (08:02 UTC)
- In effect from
- May 9, 2010, 10:00 AM EDT
- Expired
- May 9, 2010, 8:00 PM EDT
- In force
- 10 hr
- Issued by
- NWS Philadelphia/Mount Holly
All 28 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, Hunterdon County, NJ, Mercer County, NJ, Middlesex County, NJ, Monmouth County, NJ, Morris County, NJ, Ocean County, NJ, Salem County, NJ, Somerset County, NJ, Warren County, NJ, Berks County, PA, Delaware County, PA, Lehigh County, PA, Northampton County, PA, Philadelphia County, PA
The radar
The Philadelphia radar (KDIX), 68 km from the middle of the area, began a volume at 08:05 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
Wallops Is Stn, VA (KWAL), launched 00:00Z, 8.0 hours before the alert went out and 212 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
- 2709 m above ground
- 0-6 km bulk shear
- 72 kt
- 0-1 km storm-relative helicity
- -47 m²/s²
- 0-3 km storm-relative helicity
- 49 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
601 WWUS81 KPHI 090802 RFWPHI URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 402 AM EDT SUN MAY 9 2010 ...STRONG WINDS AND LOW HUMIDITIES EXPECTED TOMORROW... DEZ001>003-MDZ008-012-015-019-020-NJZ007>010-012-013-015>023-027- PAZ060>062-067>071-092100- /O.UPG.KPHI.FW.A.0005.100509T1400Z-100510T0000Z/ /O.NEW.KPHI.FW.W.0007.100509T1400Z-100510T0000Z/ NEW CASTLE-KENT-INLAND SUSSEX-CECIL-KENT MD-QUEEN ANNES-TALBOT- CAROLINE-WARREN-MORRIS-HUNTERDON-SOMERSET-MIDDLESEX- WESTERN MONMOUTH-MERCER-SALEM-GLOUCESTER-CAMDEN- NORTHWESTERN BURLINGTON-OCEAN-CUMBERLAND-ATLANTIC-CAPE MAY- SOUTHEASTERN BURLINGTON-BERKS-LEHIGH-NORTHAMPTON-CHESTER- MONTGOMERY-BUCKS-DELAWARE-PHILADELPHIA- 402 AM EDT SUN MAY 9 2010 ...RED FLAG WARNING IN EFFECT FROM 10 AM THIS MORNING TO 8 PM EDT THIS EVENING... THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A RED FLAG WARNING...WHICH IS IN EFFECT FROM 10 AM THIS MORNING TO 8 PM EDT THIS EVENING. THE FIRE WEATHER WATCH IS NO LONGER IN EFFECT. THE COMBINATION OF GUSTY WEST TO NORTHWEST WINDS, LOW RELATIVE HUMIDITY VALUES AND DRY FUELS WILL ONCE AGAIN CREATE A HIGH FIRE DANGER ACROSS THE AREA. AS A RESULT, A RED FLAG WARNING HAS BEEN ISSUED AND IS IN EFFECT UNTIL 8 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 THE POTENTIAL FOR RAPID FIRE GROWTH. PLEASE USE CAUTION AROUND ANY FIRE IGNITION SOURCES AND MAKE SURE CIGARETTES AND MATCHES ARE DISCARDED PROPERLY. && $$
2 follow-up statements
952 WWUS81 KPHI 091957 RFWPHI URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 357 PM EDT SUN MAY 9 2010 ...STRONG WINDS AND LOW HUMIDITIES EXPECTED TOMORROW... DEZ001>003-MDZ008-012-015-019-020-NJZ007>010-012-013-015>023-027- PAZ060>062-067>071-100400- /O.NEW.KPHI.FW.A.0006.100510T1600Z-100511T0000Z/ /O.CON.KPHI.FW.W.0007.000000T0000Z-100510T0000Z/ NEW CASTLE-KENT-INLAND SUSSEX-CECIL-KENT MD-QUEEN ANNES-TALBOT- CAROLINE-WARREN-MORRIS-HUNTERDON-SOMERSET-MIDDLESEX- WESTERN MONMOUTH-MERCER-SALEM-GLOUCESTER-CAMDEN- NORTHWESTERN BURLINGTON-OCEAN-CUMBERLAND-ATLANTIC-CAPE MAY- SOUTHEASTERN BURLINGTON-BERKS-LEHIGH-NORTHAMPTON-CHESTER- MONTGOMERY-BUCKS-DELAWARE-PHILADELPHIA- 357 PM EDT SUN MAY 9 2010 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING... ...FIRE WEATHER WATCH IN EFFECT FROM MONDAY AFTERNOON THROUGH MONDAY EVENING... THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A FIRE WEATHER WATCH...WHICH IS IN EFFECT FROM MONDAY AFTERNOON THROUGH MONDAY EVENING. A RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING. THE COMBINATION OF GUSTY WEST TO NORTHWEST WINDS... LOW RELATIVE HUMIDITY VALUES AND DRY FUELS WILL ONCE AGAIN CREATE A HIGH FIRE DANGER ACROSS THE AREA. AS A RESULT... A RED FLAG WARNING HAS BEEN ISSUED AND IS IN EFFECT UNTIL 8 PM. SIMILAR CONDITIONS ARE POSSIBLE FOR MONDAY AFTERNOON AND EVENING. THEREFORE A FIRE WEATHER WATCH HAS BEEN ISSUED. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL CREATE THE POTENTIAL FOR RAPID FIRE GROWTH. PLEASE USE CAUTION AROUND ANY FIRE IGNITION SOURCES AND MAKE SURE CIGARETTES AND MATCHES ARE DISCARDED PROPERLY. A FIRE WEATHER WATCH MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE FORECAST TO OCCUR. LISTEN FOR LATER FORECASTS AND POSSIBLE RED FLAG WARNINGS. && $$ DEZ004-NJZ001-014-024>026-PAZ054-055-100400- /O.NEW.KPHI.FW.A.0006.100510T1600Z-100511T0000Z/ DELAWARE BEACHES-SUSSEX-EASTERN MONMOUTH- ATLANTIC COASTAL CAPE MAY-COASTAL ATLANTIC-COASTAL OCEAN-CARBON- MONROE- 357 PM EDT SUN MAY 9 2010 ...FIRE WEATHER WATCH IN EFFECT FROM MONDAY AFTERNOON THROUGH MONDAY EVENING... THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A FIRE WEATHER WATCH...WHICH IS IN EFFECT FROM MONDAY AFTERNOON THROUGH MONDAY EVENING. THE COMBINATION OF GUSTY WEST TO NORTHWEST WINDS... LOW RELATIVE HUMIDITY VALUES AND DRY FUELS WILL CREATE A HIGH FIRE DANGER ACROSS THE AREA ON MONDAY AFTERNOON AND EARLY MONDAY EVENING. AS A RESULT... A FIRE WEATHER WATCH HAS BEEN ISSUED AND IS IN EFFECT FOR MONDAY AFTERNOON AND MONDAY EVENING. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FIRE WEATHER WATCH MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE FORECAST TO OCCUR. LISTEN FOR LATER FORECASTS AND POSSIBLE RED FLAG WARNINGS. && $$ TFG
414 WWUS81 KPHI 100000 RFWPHI URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 800 PM EDT SUN MAY 9 2010 DEZ001>003-MDZ008-012-015-019-020-NJZ007>010-012-013-015>023-027- PAZ060>062-067>071-101000- /O.CAN.KPHI.FW.W.0007.000000T0000Z-100510T0000Z/ /O.CON.KPHI.FW.A.0006.100510T1600Z-100511T0000Z/ NEW CASTLE-KENT-INLAND SUSSEX-CECIL-KENT MD-QUEEN ANNES-TALBOT- CAROLINE-WARREN-MORRIS-HUNTERDON-SOMERSET-MIDDLESEX- WESTERN MONMOUTH-MERCER-SALEM-GLOUCESTER-CAMDEN- NORTHWESTERN BURLINGTON-OCEAN-CUMBERLAND-ATLANTIC-CAPE MAY- SOUTHEASTERN BURLINGTON-BERKS-LEHIGH-NORTHAMPTON-CHESTER- MONTGOMERY-BUCKS-DELAWARE-PHILADELPHIA- 800 PM EDT SUN MAY 9 2010 ...FIRE WEATHER WATCH REMAINS IN EFFECT FROM MONDAY AFTERNOON THROUGH MONDAY EVENING... ...RED FLAG WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE HAS CANCELLED THE RED FLAG WARNING. A FIRE WEATHER WATCH REMAINS IN EFFECT FROM MONDAY AFTERNOON THROUGH MONDAY EVENING. THE COMBINATION OF GUSTY NORTHWEST WINDS, LOW RELATIVE HUMIDITY VALUES AND DRY FUELS WILL CREATE A HIGH FIRE DANGER ACROSS THE AREA ON MONDAY AFTERNOON AND EARLY MONDAY EVENING. AS A RESULT, A FIRE WEATHER WATCH HAS BEEN ISSUED AND IS IN EFFECT FOR MONDAY AFTERNOON AND MONDAY EVENING. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FIRE WEATHER WATCH MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE FORECAST TO OCCUR. LISTEN FOR LATER FORECASTS AND POSSIBLE RED FLAG WARNINGS. && $$ DEZ004-NJZ001-014-024>026-PAZ054-055-101000- /O.CON.KPHI.FW.A.0006.100510T1600Z-100511T0000Z/ DELAWARE BEACHES-SUSSEX-EASTERN MONMOUTH- ATLANTIC COASTAL CAPE MAY-COASTAL ATLANTIC-COASTAL OCEAN-CARBON- MONROE- 800 PM EDT SUN MAY 9 2010 ...FIRE WEATHER WATCH REMAINS IN EFFECT FROM MONDAY AFTERNOON THROUGH MONDAY EVENING... A FIRE WEATHER WATCH REMAINS IN EFFECT FROM MONDAY AFTERNOON THROUGH MONDAY EVENING. THE COMBINATION OF GUSTY NORTHWEST WINDS, LOW RELATIVE HUMIDITY VALUES AND DRY FUELS WILL CREATE A HIGH FIRE DANGER ACROSS THE AREA ON MONDAY AFTERNOON AND EARLY MONDAY EVENING. AS A RESULT, A FIRE WEATHER WATCH HAS BEEN ISSUED AND IS IN EFFECT FOR MONDAY AFTERNOON AND MONDAY EVENING. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FIRE WEATHER WATCH MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE FORECAST TO OCCUR. LISTEN FOR LATER FORECASTS AND POSSIBLE RED FLAG WARNINGS. && $$
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 9, 4:45 AM EDT | Freeze Warning | PHI | Hunterdon, Morris, Somerset, Sussex, Warren | 27 hr |
| May 9, 3:44 PM EDT | Small Craft Advisory | PHI | 24 hr | |
| May 9, 3:47 PM EDT | Freeze Watch | PHI | Hunterdon, Morris, Somerset, Sussex, Warren | 23 hr |
| May 9, 3:57 PM EDT | Fire Weather Watch | PHI | Atlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 10 more | 12 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.