Alert archive / New Jersey / Red Flag Warnings in 2010
Red Flag Warning 5, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this red flag warning at Apr 28, 2010, 7:55 PM EDT for 4 states. It took effect at Apr 29, 2010, 12:00 PM EDT. It was in force for 8 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 28, 2010, 7:55 PM EDT (23:55 UTC)
- In effect from
- Apr 29, 2010, 12:00 PM EDT
- Expired
- Apr 29, 2010, 8:00 PM EDT
- In force
- 8 hr
- Issued by
- NWS Philadelphia/Mount Holly
All 31 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, Sussex County, NJ, Warren County, NJ, Berks County, PA, Carbon County, PA, Delaware County, PA, Lehigh County, PA, Monroe County, PA, Northampton County, PA, Philadelphia County, PA
The radar
The Philadelphia radar (KDIX), 67 km from the middle of the area, began a volume at 23:54 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, 11.9 hours before the alert went out and 94 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
- 1589 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- 27 m²/s²
- 0-3 km storm-relative helicity
- 40 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
712 WWUS81 KPHI 282355 RFWPHI URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 755 PM EDT WED APR 28 2010 DEZ001>004-MDZ008-012-015-019-020-NJZ012>027-PAZ067>071-291015- /O.EXP.KPHI.FW.W.0004.000000T0000Z-100429T0000Z/ /O.UPG.KPHI.FW.A.0004.100429T1600Z-100430T0000Z/ /O.NEW.KPHI.FW.W.0005.100429T1600Z-100430T0000Z/ NEW CASTLE-KENT-INLAND SUSSEX-DELAWARE BEACHES-CECIL-KENT MD- QUEEN ANNES-TALBOT-CAROLINE-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- 755 PM EDT WED APR 28 2010 ...RED FLAG WARNING IN EFFECT FROM NOON TO 8 PM EDT THURSDAY... ...RED FLAG WARNING WILL EXPIRE AT 8 PM EDT THIS EVENING... THE RED FLAG WARNING FOR TODAY WILL BE ALLOWED TO EXPIRE AT 8 PM. TEMPERATURES WILL DROP AFTER SUNSET AND RELATIVE HUMIDITY VALUES WILL THEN RISE ABOVE CRITERIA. THERE COULD BE SOME GUSTY WINDS FOR THE NEXT HOUR OR SO BEFORE WINDS ALSO DROP BELOW CRITERIA. ADDITIONALLY, THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A RED FLAG WARNING...WHICH IS IN EFFECT FROM NOON TO 8 PM EDT THURSDAY. THE FIRE WEATHER WATCH FOR THURSDAY IS NO LONGER IN EFFECT. DRY WEATHER IS EXPECTED TO CONTINUE THROUGH THE END OF THE WEEK. THE FINE FUELS WILL CONTINUE TO BECOME DRIER TODAY AND THE MOISTURE IN THE FUELS SHOULD BE LOW ENOUGH TO PROMOTE FIRE GROWTH. ALSO...WINDS SPEEDS AND RELATIVE HUMIDITY LEVELS ARE BOTH EXPECTED TO PROMOTE FIRE GROWTH DURING THE AFTERNOON AND EARLY EVENING. AN ADDITIONAL DAY OF DRYING COUPLED WITH HIGH WIND SPEEDS AND EVEN LOWER AFTERNOON RELATIVE HUMIDITY LEVELS SHOULD PROMOTE RAPID FIRE GROWTH DURING THE AFTERNOON AND EARLY EVENING ON THURSDAY... EVEN MORE SO THAN TODAY. 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. && $$ NJZ001-007>010-PAZ054-055-060>062-291015- /O.UPG.KPHI.FW.A.0004.100429T1600Z-100430T0000Z/ /O.NEW.KPHI.FW.W.0005.100429T1600Z-100430T0000Z/ SUSSEX-WARREN-MORRIS-HUNTERDON-SOMERSET-CARBON-MONROE-BERKS- LEHIGH-NORTHAMPTON- 755 PM EDT WED APR 28 2010 ...RED FLAG WARNING IN EFFECT FROM NOON TO 8 PM EDT THURSDAY... THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A RED FLAG WARNING...WHICH IS IN EFFECT FROM NOON TO 8 PM EDT THURSDAY. THE FIRE WEATHER WATCH IS NO LONGER IN EFFECT. DRY WEATHER IS EXPECTED TO CONTINUE THROUGH THE END OF THE WEEK. THE FINE FUELS WILL CONTINUE TO BECOME DRIER TODAY AND THE MOISTURE IN THE FUELS SHOULD BE LOW ENOUGH TO PROMOTE FIRE GROWTH. ALSO...WINDS SPEEDS AND RELATIVE HUMIDITY LEVELS ARE BOTH EXPECTED TO PROMOTE FIRE GROWTH DURING THE AFTERNOON AND EARLY EVENING. AN ADDITIONAL DAY OF DRYING COUPLED WITH HIGH WIND SPEEDS AND EVEN LOWER AFTERNOON RELATIVE HUMIDITY LEVELS SHOULD PROMOTE RAPID FIRE GROWTH DURING THE AFTERNOON AND EARLY EVENING ON THURSDAY... EVEN MORE SO THAN TODAY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$
3 follow-up statements
182 WWUS81 KPHI 290817 RFWPHI URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 417 AM EDT THU APR 29 2010 DEZ001>004-MDZ008-012-015-019-020-NJZ001-007>010-012>027-PAZ054- 055-060>062-067>071-292100- /O.CON.KPHI.FW.W.0005.100429T1600Z-100430T0000Z/ NEW CASTLE-KENT-INLAND SUSSEX-DELAWARE BEACHES-CECIL-KENT MD- QUEEN ANNES-TALBOT-CAROLINE-SUSSEX-WARREN-MORRIS-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-CARBON-MONROE-BERKS-LEHIGH- NORTHAMPTON-CHESTER-MONTGOMERY-BUCKS-DELAWARE-PHILADELPHIA- 417 AM EDT THU APR 29 2010 ...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TODAY TO 8 PM EDT THIS EVENING... A RED FLAG WARNING REMAINS IN EFFECT FROM NOON TODAY TO 8 PM EDT THIS EVENING. WITH CONTINUING DRY WEATHER AND MORE ABUNDANT SUNSHINE TODAY...THE FINE FUELS WILL CONTINUE TO DRY OUT AND THE MOISTURE IN THE FUELS SHOULD BE LOW ENOUGH TO PROMOTE FIRE GROWTH. ALSO...WINDS GUSTS AROUND 25 TO 30 MPH AND RELATIVE HUMIDITY LEVELS BELOW 30 PERCENT ARE BOTH EXPECTED TO PROMOTE FIRE GROWTH DURING THE AFTERNOON AND EARLY EVENING. 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. && $$
343 WWUS81 KPHI 291554 RFWPHI URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 1154 AM EDT THU APR 29 2010 DEZ001>004-MDZ008-012-015-019-020-NJZ001-007>010-012>027-PAZ054- 055-060>062-067>071-300000- /O.CON.KPHI.FW.W.0005.100429T1600Z-100430T0000Z/ NEW CASTLE-KENT-INLAND SUSSEX-DELAWARE BEACHES-CECIL-KENT MD- QUEEN ANNES-TALBOT-CAROLINE-SUSSEX-WARREN-MORRIS-HUNTERDON- SOMERSET-MIDDLESEX-WESTERN MONMOUTH-EASTERN MONMOUTH-MERCER-SALEM- GLOUCESTER-CAMDEN-NORTHWESTERN BURLINGTON-OCEAN-CUMBERLAND- ATLANTIC-CAPE MAY-ATLANTIC COASTAL CAPE MAY-COASTAL ATLANTIC- COASTAL OCEAN-SOUTHEASTERN BURLINGTON-CARBON-MONROE-BERKS-LEHIGH- NORTHAMPTON-CHESTER-MONTGOMERY-BUCKS-DELAWARE-PHILADELPHIA- 1154 AM EDT THU APR 29 2010 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING... A RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING. WITH CONTINUING DRY WEATHER AND MORE ABUNDANT SUNSHINE TODAY... THE FINE FUELS WILL CONTINUE TO DRY OUT AND THE MOISTURE IN THE FUELS SHOULD BE LOW ENOUGH TO PROMOTE FIRE GROWTH. ALSO...WINDS GUSTS AROUND 25 TO 30 MPH AND RELATIVE HUMIDITY LEVELS BELOW 30 PERCENT ARE BOTH EXPECTED TO PROMOTE FIRE GROWTH DURING THE AFTERNOON AND EARLY EVENING. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ SZATKOWSKI
017 WWUS81 KPHI 292356 RFWPHI URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 756 PM EDT THU APR 29 2010 DEZ001>004-MDZ008-012-015-019-020-NJZ001-007>010-012>027-PAZ054- 055-060>062-067>071-300100- /O.EXP.KPHI.FW.W.0005.000000T0000Z-100430T0000Z/ NEW CASTLE-KENT-INLAND SUSSEX-DELAWARE BEACHES-CECIL-KENT MD- QUEEN ANNES-TALBOT-CAROLINE-SUSSEX-WARREN-MORRIS-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-CARBON-MONROE-BERKS-LEHIGH- NORTHAMPTON-CHESTER-MONTGOMERY-BUCKS-DELAWARE-PHILADELPHIA- 756 PM EDT THU APR 29 2010 ...RED FLAG WARNING WILL EXPIRE AT 8 PM EDT THIS EVENING... THE RED FLAG WARNING WILL EXPIRE AT 8 PM EDT THIS EVENING. AS TEMPERATURES DROP TONIGHT AND THE DEW POINTS RISE SOME, THE RELATIVE HUMIDITY VALUES WILL CLIMB ABOVE CRITERIA. THERE COULD BE LOCALLY GUSTY WINDS FOR THE NEXT HOUR OR SO, HOWEVER THE WINDS OVERALL WILL BE DIMINISHING. AS A RESULT, THE RED FLAG WARNING WILL BE ALLOWED TO EXPIRE AT 8 PM. $$ GORSE
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 28, 4:12 AM EDT | Fire Weather Watch | PHI | Kent, New Castle, Sussex | 16 hr |
| Apr 28, 4:12 AM EDT | Red Flag Warning | PHI | Kent, New Castle, Sussex | 16 hr |
| Apr 28, 4:03 AM EDT | Freeze Warning | PHI | Carbon, Lehigh, Monroe, Northampton | 28 hr |
| Apr 27, 9:10 PM EDT | Gale Warning | PHI | 23 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.