Alert archive / Delaware / Freeze Warnings in 2021
Freeze Warning 8, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this freeze warning at Nov 13, 2021, 2:11 PM EST for Sussex County, Delaware. It took effect at Nov 14, 2021, 2:00 AM EST. It was in force for 7 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
- Nov 13, 2021, 2:11 PM EST (19:11 UTC)
- In effect from
- Nov 14, 2021, 2:00 AM EST
- Expired
- Nov 14, 2021, 8:42 AM EST
- In force
- 7 hr
- Issued by
- NWS Philadelphia/Mount Holly
County Sussex County, DE
The radar
The Dover AFB radar (KDOX), 18 km from the middle of the area, began a volume at 19:14 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, 7.2 hours before the alert went out and 84 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
- 1559 m above ground
- 0-6 km bulk shear
- 92 kt
- 0-1 km storm-relative helicity
- 25 m²/s²
- 0-3 km storm-relative helicity
- 138 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
384 WWUS71 KPHI 131911 NPWPHI URGENT - WEATHER MESSAGE National Weather Service Mount Holly NJ 211 PM EST Sat Nov 13 2021 DEZ003-140815- /O.NEW.KPHI.FZ.W.0008.211114T0700Z-211114T1400Z/ Inland Sussex- Including the city of Georgetown 211 PM EST Sat Nov 13 2021 ...FREEZE WARNING IN EFFECT FROM 2 AM TO 9 AM EST SUNDAY... * WHAT...Sub-freezing temperatures as low as 31 expected. * WHERE...Inland Sussex. * WHEN...From 2 AM to 9 AM EST Sunday. * IMPACTS...Frost and freeze conditions will kill crops and other sensitive vegetation. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ NJZ015>019-021-PAZ071-106-140000- /O.EXA.KPHI.WI.Y.0009.000000T0000Z-211114T0000Z/ Mercer-Salem-Gloucester-Camden-Northwestern Burlington-Cumberland- Philadelphia-Lower Bucks- Including the cities of Trenton, Pennsville, Glassboro, Camden, Cherry Hill, Moorestown, Mount Holly, Millville, Philadelphia, Morrisville, and Doylestown 211 PM EST Sat Nov 13 2021 ...WIND ADVISORY IN EFFECT UNTIL 7 PM EST THIS EVENING... * WHAT...West winds 20 to 30 mph with gusts of 40 to 50 mph. * WHERE...In New Jersey, Mercer, Salem, Gloucester, Camden, Northwestern Burlington and Cumberland. In Pennsylvania, Philadelphia and Lower Bucks. * WHEN...Until 7 PM EST this evening. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ NJZ014-023>026-140000- /O.CON.KPHI.WI.Y.0009.000000T0000Z-211114T0000Z/ Eastern Monmouth-Cape May-Atlantic Coastal Cape May- Coastal Atlantic-Coastal Ocean- Including the cities of Sandy Hook, Cape May Court House, Ocean City, Atlantic City, and Long Beach Island 211 PM EST Sat Nov 13 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 7 PM EST THIS EVENING... * WHAT...West winds 20 to 30 mph with gusts of 40 to 50 mph. * WHERE...Coastal Ocean, Atlantic Coastal Cape May, Coastal Atlantic, Cape May and Eastern Monmouth. * WHEN...Until 7 PM EST this evening. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ NJZ012-013-020-022-027-140000- /O.CON.KPHI.WI.Y.0009.000000T0000Z-211114T0000Z/ Middlesex-Western Monmouth-Ocean-Atlantic-Southeastern Burlington- Including the cities of New Brunswick, Freehold, Jackson, Hammonton, and Wharton State Forest 211 PM EST Sat Nov 13 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 7 PM EST THIS EVENING... * WHAT...West winds 20 to 30 mph with gusts of 40 to 50 mph. * WHERE...Southeastern Burlington, Atlantic, Ocean, Western Monmouth and Middlesex. * WHEN...Until 7 PM EST this evening. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ Fitzsimmons
3 follow-up statements
852 WWUS71 KPHI 132200 NPWPHI URGENT - WEATHER MESSAGE National Weather Service Mount Holly NJ 500 PM EST Sat Nov 13 2021 NJZ012>027-PAZ071-106-132300- /O.CAN.KPHI.WI.Y.0009.000000T0000Z-211114T0000Z/ 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-Philadelphia-Lower Bucks- Including the cities of New Brunswick, Freehold, Sandy Hook, Trenton, Pennsville, Glassboro, Camden, Cherry Hill, Moorestown, Mount Holly, Jackson, Millville, Hammonton, Cape May Court House, Ocean City, Atlantic City, Long Beach Island, Wharton State Forest, Philadelphia, Morrisville, and Doylestown 500 PM EST Sat Nov 13 2021 ...WIND ADVISORY IS CANCELLED... Winds have diminished and should continue to decrease through the evening. Therefore, the wind advisory has been cancelled. $$ DEZ003-141100- /O.CON.KPHI.FZ.W.0008.211114T0700Z-211114T1400Z/ Inland Sussex- Including the city of Georgetown 500 PM EST Sat Nov 13 2021 ...FREEZE WARNING REMAINS IN EFFECT FROM 2 AM TO 9 AM EST SUNDAY... * WHAT...Sub-freezing temperatures as low as 33 expected. * WHERE...Inland Sussex. * WHEN...From 2 AM to 9 AM EST Sunday. * IMPACTS...Frost and freeze conditions will kill crops and other sensitive vegetation. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ Johnson
146 WWUS71 KPHI 140251 NPWPHI URGENT - WEATHER MESSAGE National Weather Service Mount Holly NJ 951 PM EST Sat Nov 13 2021 DEZ003-141400- /O.CON.KPHI.FZ.W.0008.211114T0700Z-211114T1400Z/ Inland Sussex- Including the city of Georgetown 951 PM EST Sat Nov 13 2021 ...FREEZE WARNING REMAINS IN EFFECT FROM 2 AM TO 9 AM EST SUNDAY... * WHAT...Sub-freezing temperatures as low as 33 expected. * WHERE...Inland Sussex. * WHEN...From 2 AM to 9 AM EST Sunday. * IMPACTS...Frost and freeze conditions will kill crops and other sensitive vegetation. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ Johnson
833 WWUS71 KPHI 141342 NPWPHI URGENT - WEATHER MESSAGE National Weather Service Mount Holly NJ 842 AM EST Sun Nov 14 2021 DEZ003-141445- /O.CAN.KPHI.FZ.W.0008.000000T0000Z-211114T1400Z/ Inland Sussex- Including the city of Georgetown 842 AM EST Sun Nov 14 2021 ...FREEZE WARNING IS CANCELLED... Temperatures have risen above freezing this morning, and therefore the freeze warning has been cancelled. $$ BAH
Nearby
Freeze Warnings in Delaware, 2021Every freeze warning in 2021
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.