Alert archive / New Jersey / Freeze Warnings in 2007
Freeze Warning 1, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this freeze warning at Apr 7, 2007, 3:01 PM EDT for 8 counties in New Jersey; 5 counties in Maryland; Kent County, New Castle County, Sussex County, Delaware. It took effect at Apr 8, 2007, 1:00 AM 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 7, 2007, 3:01 PM EDT (19:01 UTC)
- In effect from
- Apr 8, 2007, 1:00 AM EDT
- Expired
- Apr 8, 2007, 9:00 AM EDT
- In force
- 8 hr
- Issued by
- NWS Philadelphia/Mount Holly
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, Ocean County, NJ, Salem County, NJ
The radar
The Dover AFB radar (KDOX), 58 km from the middle of the area, began a volume at 18:59 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
Wallops Is Stn, VA (KWAL), launched 12:00Z, 7.0 hours before the alert went out and 158 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
- 11 J/kg
- Mixed-layer CIN
- -5 J/kg
- Mixed-layer LCL
- 420 m above ground
- 0-6 km bulk shear
- 76 kt
- 0-1 km storm-relative helicity
- 53 m²/s²
- 0-3 km storm-relative helicity
- 160 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WWUS71 KPHI 071901 NPWPHI URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 301 PM EDT SAT APR 7 2007 DEZ001>003-MDZ008-012-015-019-020-NJZ016>023-027-081100- /O.UPG.KPHI.FZ.A.0003.070408T0500Z-070408T1300Z/ /O.NEW.KPHI.FZ.W.0001.070408T0500Z-070408T1300Z/ NEW CASTLE-KENT DE-INLAND SUSSEX-CECIL-KENT MD-QUEEN ANNES- TALBOT-CAROLINE-SALEM-GLOUCESTER-CAMDEN-NORTHWESTERN BURLINGTON- OCEAN-CUMBERLAND-ATLANTIC-CAPE MAY-SOUTHEASTERN BURLINGTON- INCLUDING THE CITIES OF...WILMINGTON...DOVER...GEORGETOWN... ELKTON...CHESTERTOWN...CENTREVILLE...EASTON...DENTON... PENNSVILLE...GLASSBORO...CAMDEN...CHERRY HILL...MOORESTOWN... MOUNT HOLLY...JACKSON...MILLVILLE...HAMMONTON... CAPE MAY COURT HOUSE...WHARTON STATE FOREST 301 PM EDT SAT APR 7 2007 ...FREEZE WARNING IN EFFECT FROM 1 AM TO 9 AM EDT SUNDAY... THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A FREEZE WARNING...WHICH IS IN EFFECT FROM 1 AM TO 9 AM EDT SUNDAY. THE FREEZE WATCH IS NO LONGER IN EFFECT. UNSEASONABLY COLD AIR WILL REMAIN OVER THE REGION THROUGH SUNDAY. TEMPERATURES ARE EXPECTED TO DROP TO 25 TO 30 DEGREES TONIGHT. THESE TEMPERATURES ARE LIKELY TO DAMAGE FRUIT TREES...WHICH HAVE ALREADY BEGUN TO BLOOM. IN ADDITION...ANY TENDER PLANTS AND VEGETATION ARE ALSO LIKELY TO BE HURT BY THIS FREEZE. THEREFORE...BRING ANY VULNERABLE PLANTS INDOORS THIS EVENING. ALTERNATIVELY...COVER EXPOSED VEGETATION IF POSSIBLE. THIS COLD WEATHER MAY LAST INTO EARLY NEXT WEEK AND FREEZE WARNINGS COULD AGAIN BE NEEDED ON SUNDAY NIGHT AND/OR MONDAY NIGHT. A FREEZE WARNING MEANS SUB-FREEZING TEMPERATURES ARE IMMINENT OR HIGHLY LIKELY. THESE CONDITIONS WILL HURT OR KILL CROPS AND OTHER SENSITIVE VEGETATION. $$ STAUBER
2 follow-up statements
000 WWUS71 KPHI 080805 NPWPHI URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 405 AM EDT SUN APR 8 2007 DEZ001>003-MDZ008-012-015-019-020-NJZ016>023-027-081300- /O.NEW.KPHI.FZ.A.0004.070409T0800Z-070409T1200Z/ /O.CON.KPHI.FZ.W.0001.000000T0000Z-070408T1300Z/ NEW CASTLE-KENT DE-INLAND SUSSEX-CECIL-KENT MD-QUEEN ANNES- TALBOT-CAROLINE-SALEM-GLOUCESTER-CAMDEN-NORTHWESTERN BURLINGTON- OCEAN-CUMBERLAND-ATLANTIC-CAPE MAY-SOUTHEASTERN BURLINGTON- INCLUDING THE CITIES OF...WILMINGTON...DOVER...GEORGETOWN... ELKTON...CHESTERTOWN...CENTREVILLE...EASTON...DENTON... PENNSVILLE...GLASSBORO...CAMDEN...CHERRY HILL...MOORESTOWN... MOUNT HOLLY...JACKSON...MILLVILLE...HAMMONTON... CAPE MAY COURT HOUSE...WHARTON STATE FOREST 405 AM EDT SUN APR 8 2007 ...FREEZE WARNING REMAINS IN EFFECT UNTIL 9 AM EDT THIS MORNING... ...FREEZE WATCH IN EFFECT FROM LATE TONIGHT THROUGH MONDAY MORNING... THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A FREEZE WATCH...WHICH IS IN EFFECT FROM LATE TONIGHT THROUGH EARLY MONDAY MORNING. A FREEZE WARNING REMAINS IN EFFECT UNTIL 9 AM EDT THIS MORNING. UNSEASONABLY COLD AIR WILL REMAIN OVER THE REGION INTO EARLY MONDAY. TEMPERATURES EARLY THIS MORNING HAVE DROPPED BELOW THE FREEZING MARK AROUND ALMOST ALL OF THE WARNING AREA...AND THEY WILL DROP A FEW DEGREES MORE BY DAYBREAK. TEMPERATURES LATE TONIGHT ARE AGAIN EXPECTED TO DROP BELOW FREEZING. THIS WOULD AGAIN THREATEN ANY SENSITIVE VEGETATION THAT HAS BEGUN TO SPROUT. A FREEZE WARNING MEANS SUB-FREEZING TEMPERATURES ARE IMMINENT OR HIGHLY LIKELY. A FREEZE WATCH MEANS THAT SUB-FREEZING TEMPERATURES ARE POSSIBLE. $$ MPD
000 WWUS71 KPHI 081237 NPWPHI URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 837 AM EDT SUN APR 8 2007 DEZ001>003-MDZ008-012-015-019-020-NJZ016>023-027-081900- /O.EXP.KPHI.FZ.W.0001.000000T0000Z-070408T1300Z/ /O.CON.KPHI.FZ.A.0004.070409T0800Z-070409T1200Z/ NEW CASTLE-KENT DE-INLAND SUSSEX-CECIL-KENT MD-QUEEN ANNES- TALBOT-CAROLINE-SALEM-GLOUCESTER-CAMDEN-NORTHWESTERN BURLINGTON- OCEAN-CUMBERLAND-ATLANTIC-CAPE MAY-SOUTHEASTERN BURLINGTON- INCLUDING THE CITIES OF...WILMINGTON...DOVER...GEORGETOWN... ELKTON...CHESTERTOWN...CENTREVILLE...EASTON...DENTON... PENNSVILLE...GLASSBORO...CAMDEN...CHERRY HILL...MOORESTOWN... MOUNT HOLLY...JACKSON...MILLVILLE...HAMMONTON... CAPE MAY COURT HOUSE...WHARTON STATE FOREST 837 AM EDT SUN APR 8 2007 ...FREEZE WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH MONDAY MORNING... ...FREEZE WARNING WILL EXPIRE AT 9 AM EDT THIS MORNING... THE FREEZE WARNING WILL EXPIRE AT 9 AM EDT THIS MORNING. A FREEZE WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH MONDAY MORNING. UNSEASONABLY COLD AIR WILL REMAIN OVER THE REGION INTO EARLY MONDAY. TEMPERATURES LATE TONIGHT ARE AGAIN EXPECTED TO DROP BELOW FREEZING. THIS WOULD AGAIN THREATEN ANY SENSITIVE VEGETATION THAT HAS BEGUN TO SPROUT. A FREEZE WATCH MEANS SUB-FREEZING TEMPERATURES ARE POSSIBLE. THESE CONDITIONS COULD KILL CROPS AND OTHER SENSITIVE VEGETATION. $$
Nearby
Freeze Warnings in New Jersey, 2007Freeze Warnings in Maryland, 2007Freeze Warnings in Delaware, 2007Every freeze warning in 2007
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.