Alert archive / New Jersey / Red Flag Warnings in 2010
Red Flag Warning 13, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this red flag warning at Sep 4, 2010, 4:19 AM EDT for 4 states. It took effect at Sep 4, 2010, 12:00 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 4, 2010, 4:19 AM EDT (08:19 UTC)
- In effect from
- Sep 4, 2010, 12:00 PM EDT
- Expired
- Sep 4, 2010, 5:00 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, Middlesex County, NJ, Monmouth County, NJ, Ocean County, NJ, Salem County, NJ, Delaware County, PA, Philadelphia County, PA
The radar
The Philadelphia radar (KDIX), 82 km from the middle of the area, began a volume at 08:21 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, 8.3 hours before the alert went out and 180 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
- 5 J/kg
- Mixed-layer CIN
- -190 J/kg
- Mixed-layer LCL
- 1563 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 94 m²/s²
- 0-3 km storm-relative helicity
- 101 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
082 WWUS81 KPHI 040819 RFWPHI URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 419 AM EDT SAT SEP 4 2010 NJZ012>027-PAZ069>071-041630- /O.NEW.KPHI.FW.W.0013.100904T1600Z-100904T2100Z/ 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-BUCKS-DELAWARE-PHILADELPHIA- 419 AM EDT SAT SEP 4 2010 ...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 5 PM EDT THIS AFTERNOON... THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A RED FLAG WARNING...WHICH IS IN EFFECT FROM NOON TODAY TO 5 PM EDT THIS AFTERNOON. THIS WARNING COVERS MOST OF SOUTHERN AND CENTRAL NEW JERSEY...EVEN ALONG THE SHORE...AND ALSO INCLUDES PHILADELPHIA OF FAR SOUTHEASTERN PENNSYLVANIA. THE DRY SPELL OF THE PAST 10 DAYS HAS SET THE STAGE FOR AN INCREASED RISK OF FIRE DANGER. TODAY...GUSTY WEST WINDS TO 30 MPH WILL COMBINE WITH HUMIDITY BELOW 30 PERCENT AND THE DRY SPELL OF THE PAST 10 DAYS TO INCREASE THE RATE OF RAPID FIRE SPREAD IN THE VERY DRY FINE FUELS. THE COMBINATION OF STRONGEST WINDS AND LOWEST RELATIVE HUMIDITY SHOULD OCCUR BETWEEN 2 PM AND 5 PM. GUSTY WINDS AND LOW HUMIDITY WILL ALSO OCCUR ELSEWHERE IN EASTERN PENNSYLVANIA...DELAWARE AND MARYLANDS EASTERN SHORE. THIS WARNING MAY NEED TO BE EXPANDED INTO PORTIONS OF THOSE STATES DURING THE MIDDAY HOURS. WINDS WILL DIMINISH RAPIDLY AROUND 6 PM 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. && $$ DRAG
2 follow-up statements
187 WWUS81 KPHI 041349 RFWPHI URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 949 AM EDT SAT SEP 4 2010 DEZ001>004-MDZ008-012-015-019-020-PAZ067-068-042100- /O.EXA.KPHI.FW.W.0013.100904T1600Z-100904T2100Z/ NEW CASTLE-KENT-INLAND SUSSEX-DELAWARE BEACHES-CECIL-KENT MD- QUEEN ANNES-TALBOT-CAROLINE-CHESTER-MONTGOMERY- 949 AM EDT SAT SEP 4 2010 ...RED FLAG WARNING IN EFFECT UNTIL 5 PM EDT THIS AFTERNOON... THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A RED FLAG WARNING...WHICH IS IN EFFECT UNTIL 5 PM EDT THIS AFTERNOON. THE DRY SPELL OF THE PAST 10 DAYS HAS SET THE STAGE FOR AN INCREASED RISK OF FIRE DANGER. FOR THIS AFTERNOON...GUSTY WEST WINDS TO 35 MPH WILL COMBINE WITH HUMIDITY BELOW 30 PERCENT AND THE DRY SPELL OF THE PAST 10 DAYS TO INCREASE THE RATE OF RAPID FIRE SPREAD IN THE VERY DRY FINE FUELS. THE COMBINATION OF STRONGEST WINDS AND LOWEST RELATIVE HUMIDITY SHOULD OCCUR BETWEEN 2 PM AND 5 PM. WINDS ARE EXPECTED TO DIMINISH RAPIDLY AFTER 500 PM. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ NJZ012>027-PAZ069>071-042100- /O.CON.KPHI.FW.W.0013.100904T1600Z-100904T2100Z/ 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-BUCKS-DELAWARE-PHILADELPHIA- 949 AM EDT SAT SEP 4 2010 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 5 PM EDT THIS AFTERNOON... A RED FLAG WARNING REMAINS IN EFFECT UNTIL 5 PM EDT THIS AFTERNOON. THE DRY SPELL OF THE PAST 10 DAYS HAS SET THE STAGE FOR AN INCREASED RISK OF FIRE DANGER. FOR THIS AFTERNOON...GUSTY WEST WINDS TO 35 MPH WILL COMBINE WITH HUMIDITY BELOW 30 PERCENT AND THE DRY SPELL OF THE PAST 10 DAYS TO INCREASE THE RATE OF RAPID FIRE SPREAD IN THE VERY DRY FINE FUELS. THE COMBINATION OF STRONGEST WINDS AND LOWEST RELATIVE HUMIDITY SHOULD OCCUR BETWEEN 2 PM AND 5 PM. WINDS ARE EXPECTED TO DIMINISH RAPIDLY AFTER 500 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. && $$ HAYES
858 WWUS81 KPHI 042055 RFWPHI URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 455 PM EDT SAT SEP 4 2010 DEZ001>004-MDZ008-012-015-019-020-NJZ012>027-PAZ067>071-042200- /O.EXP.KPHI.FW.W.0013.000000T0000Z-100904T2100Z/ NEW CASTLE-KENT-INLAND SUSSEX-DELAWARE BEACHES-CECIL-KENT MD- QUEEN ANNES-TALBOT-CAROLINE-MIDDLESEX-WESTERN MONMOUTH- EASTERN MONMOUTH-MERCER-SALEM-GLOUCESTER-CAMDEN- NORTHWESTERN BURLINGTON-OCEAN-CUMBERLAND-ATLANTIC-CAPE MAY- ATLANTIC COASTAL CAPE MAY-COASTAL ATLANTIC-COASTAL OCEAN- SOUTHEASTERN BURLINGTON-CHESTER-MONTGOMERY-BUCKS-DELAWARE- PHILADELPHIA- 455 PM EDT SAT SEP 4 2010 ...RED FLAG WARNING WILL EXPIRE AT 5 PM EDT THIS AFTERNOON... THE WIND WILL CONTINUE TO DIMINISH GRADUALLY THIS EVENING. AS A RESULT, THE RED FLAG WARNING WILL BE ALLOWED TO EXPIRE AT 500 PM. $$ IOVINO
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 3, 9:30 PM EDT | Small Craft Advisory | PHI | 23 hr | |
| Sep 4, 9:36 AM EDT | Coastal Flood Statement | PHI | Atlantic, Cape May, Monmouth, Ocean | 10 hr |
Nearby
Red Flag Warnings in New Jersey, 2010Red Flag Warnings in Maryland, 2010Red Flag Warnings in Delaware, 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.