Alert archive / New Jersey / Red Flag Warnings in 2024
Red Flag Warning 1, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this red flag warning at Mar 21, 2024, 8:58 AM EDT for 11 counties in New Jersey. 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
- Mar 21, 2024, 8:58 AM EDT (12:58 UTC)
- Expired
- Mar 21, 2024, 7:00 PM EDT
- In force
- 10 hr
- Issued by
- NWS Philadelphia/Mount Holly
Counties 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
The radar
The Philadelphia radar (KDIX), 34 km from the middle of the area, began a volume at 12:58 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
Brookhaven, NY (KOKX), launched 12:00Z, 1.0 hours before the alert went out and 199 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
- 1540 m above ground
- 0-6 km bulk shear
- 97 kt
- 0-1 km storm-relative helicity
- 112 m²/s²
- 0-3 km storm-relative helicity
- 103 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
631 WWUS81 KPHI 211258 RFWPHI URGENT - FIRE WEATHER MESSAGE National Weather Service Mount Holly NJ 858 AM EDT Thu Mar 21 2024 ...CRITICAL FIRE WEATHER CONDITIONS EXPECTED TODAY... .Low fuel moistures, low daytime relative humidity values, and breezy conditions will result in critical fire weather conditions through the early evening hours. Any fires that develop may become difficult to contain. NJZ012>027-212300- /O.NEW.KPHI.FW.W.0001.240321T1258Z-240321T2300Z/ 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- 858 AM EDT Thu Mar 21 2024 ...RED FLAG WARNING IN EFFECT UNTIL 7 PM EDT THIS EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR CENTRAL AND SOUTHERN NEW JERSEY... The National Weather Service in Mount Holly has issued a Red Flag Warning for gusty winds and low relative humidity, which is in effect until 7 PM EDT this evening. * AFFECTED AREA...Middlesex, Western Monmouth, Eastern Monmouth, Mercer, Salem, Gloucester, Camden, Northwestern Burlington, Ocean, Cumberland, Atlantic, Cape May, Atlantic Coastal Cape May, Coastal Atlantic, Coastal Ocean and Southeastern Burlington. * TIMING...Through early this evening. * WINDS...Northwest 10 to 20 mph with gusts up to 30 mph. * RELATIVE HUMIDITY...As low as 21 percent. * TEMPERATURES...Up to 45. * IMPACTS...The combination of dry conditions, low relative humidity, and gusty winds will result in favorable conditions for the rapid spread of fires. Any fires that develop may become difficult to contain. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly due to a combination of strong winds, low relative humidity, and dry fuels. Any fires that develop may quickly get out of control and become difficult to contain. For more information about wildfire danger, burn restrictions, and wildfire prevention and education, please visit your state forestry or environmental protection website. && $$ Kruzdlo
1 follow-up statement
027 WWUS81 KPHI 212300 RFWPHI URGENT - FIRE WEATHER MESSAGE National Weather Service Mount Holly NJ 700 PM EDT Thu Mar 21 2024 NJZ012>027-220000- /O.EXP.KPHI.FW.W.0001.000000T0000Z-240321T2300Z/ Middlesex-Western Monmouth-Eastern Monmouth-Mercer-Salem- Gloucester-Camden-Northwestern Burlington-Ocean-Cumberland- Atlantic-Cape May-Atlantic Coastal Cape May-Coastal Atlantic- Coastal Ocean-Southeastern Burlington- 700 PM EDT Thu Mar 21 2024 ...RED FLAG WARNING WILL EXPIRE AT 7 PM EDT THIS EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY ACROSS PORTIONS OF NEW JERSEY... As sunset approaches and we lose daytime heating, relative humidity values are creeping above 30 percent, and wind gusts at almost all sites are below 20 mph. RH will continue to rise tonight with winds quickly easing as well. Much lighter winds along with somewhat higher humidity values are forecast on Friday, greatly limiting the fire weather threat. $$
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 21, 5:17 AM EDT | Small Craft Advisory | PHI | 13 hr | |
| Mar 21, 3:29 PM EDT | Flood Watch | PHI | Atlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 10 more | 51 hr |
Nearby
Red Flag Warnings in New Jersey, 2024Every red flag warning in 2024
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.