Alert archive / Maryland / Frost Advisories in 2016
Frost Advisory 15, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this frost advisory at Nov 11, 2016, 4:45 PM EST for 4 states. It took effect at Nov 12, 2016, 3:00 AM EST. It was in force for 5 hr.
The area
The counties it named.
The facts
- Issued
- Nov 11, 2016, 4:45 PM EST (21:45 UTC)
- In effect from
- Nov 12, 2016, 3:00 AM EST
- Expired
- Nov 12, 2016, 8:00 AM EST
- In force
- 5 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, Cape May County, NJ, Delaware County, PA, Philadelphia County, PA
The radar
The Dover AFB radar (KDOX), 55 km from the middle of the area, began a volume at 21:45 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, 9.8 hours before the alert went out and 154 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
- 2715 m above ground
- 0-6 km bulk shear
- 49 kt
- 0-1 km storm-relative helicity
- -22 m²/s²
- 0-3 km storm-relative helicity
- 22 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
910 WWUS71 KPHI 112145 NPWPHI URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 445 PM EST FRI NOV 11 2016 DEZ001>003-MDZ008-012-015-020-NJZ023-121100- /O.NEW.KPHI.FR.Y.0015.161112T0800Z-161112T1300Z/ /O.CON.KPHI.FZ.A.0008.161113T0600Z-161113T1300Z/ NEW CASTLE-KENT-INLAND SUSSEX-CECIL-KENT MD-QUEEN ANNES-CAROLINE- CAPE MAY- INCLUDING THE CITIES OF...WILMINGTON...DOVER...GEORGETOWN... ELKTON...CHESTERTOWN...CENTREVILLE...DENTON... CAPE MAY COURT HOUSE 445 PM EST FRI NOV 11 2016 ...FROST ADVISORY IN EFFECT FROM 3 AM TO 8 AM EST SATURDAY... ...FREEZE WATCH REMAINS IN EFFECT FROM LATE SATURDAY NIGHT THROUGH SUNDAY MORNING... THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A FROST ADVISORY. IT IS IN EFFECT FROM 300 AM UNTIL 800 AM SATURDAY. A FREEZE WATCH REMAINS IN EFFECT FROM LATE SATURDAY NIGHT INTO EARLY SUNDAY MORNING. * MINIMUM TEMPERATURES...IN THE LOWER TO MIDDLE 30S TONIGHT AND IN THE UPPER 20S TO LOWER 30S ON SATURDAY NIGHT. * IMPACTS...SENSITIVE PLANTS AND CROPS MAY BE DAMAGED OR KILLED BY THE FROST AND FREEZE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FROST ADVISORY MEANS THAT AREAS OF FROST ARE EXPECTED. SENSITIVE OUTDOOR PLANTS MAY BE KILLED IF LEFT UNPROTECTED. A FREEZE WATCH MEANS THAT SUB-FREEZING TEMPERATURES ARE POSSIBLE. THE CONDITIONS COULD KILL CROPS AND OTHER SENSITIVE VEGETATION. && $$ PAZ070-071-121100- /O.NEW.KPHI.FR.Y.0015.161112T0800Z-161112T1300Z/ DELAWARE-PHILADELPHIA- INCLUDING THE CITIES OF...MEDIA...PHILADELPHIA 445 PM EST FRI NOV 11 2016 ...FROST ADVISORY IN EFFECT FROM 3 AM TO 8 AM EST SATURDAY... THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A FROST ADVISORY. IT IS IN EFFECT FROM 300 AM UNTIL 800 AM SATURDAY. * MINIMUM TEMPERATURES...IN THE LOWER TO MIDDLE 30S TONIGHT. * IMPACTS...SENSITIVE PLANTS AND CROPS MAY BE DAMAGED OR KILLED BY THE FROST. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FROST ADVISORY MEANS THAT AREAS OF FROST ARE EXPECTED. SENSITIVE OUTDOOR PLANTS MAY BE KILLED IF LEFT UNPROTECTED. && $$ MDZ019-121100- /O.CON.KPHI.FZ.A.0008.161113T0600Z-161113T1300Z/ TALBOT- INCLUDING THE CITY OF...EASTON 445 PM EST FRI NOV 11 2016 ...FREEZE WATCH REMAINS IN EFFECT FROM LATE SATURDAY NIGHT THROUGH SUNDAY MORNING... * MINIMUM TEMPERATURES...IN THE LOWER 30S ON SATURDAY NIGHT. * IMPACTS...SENSITIVE PLANTS AND CROPS MAY BE DAMAGED OR KILLED BY THE FREEZING TEMPERATURES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FREEZE WATCH MEANS THAT SUB-FREEZING TEMPERATURES ARE POSSIBLE. THE CONDITIONS COULD KILL CROPS AND OTHER SENSITIVE VEGETATION. && $$ IOVINO
2 follow-up statements
987 WWUS71 KPHI 120852 NPWPHI URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 352 AM EST SAT NOV 12 2016 DEZ001>003-MDZ008-012-015-020-NJZ023-122200- /O.CON.KPHI.FR.Y.0015.000000T0000Z-161112T1300Z/ /O.CON.KPHI.FZ.A.0008.161113T0600Z-161113T1300Z/ NEW CASTLE-KENT-INLAND SUSSEX-CECIL-KENT MD-QUEEN ANNES-CAROLINE- CAPE MAY- INCLUDING THE CITIES OF...WILMINGTON...DOVER...GEORGETOWN... ELKTON...CHESTERTOWN...CENTREVILLE...DENTON... CAPE MAY COURT HOUSE 352 AM EST SAT NOV 12 2016 ...FROST ADVISORY REMAINS IN EFFECT UNTIL 8 AM EST THIS MORNING... ...FREEZE WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH SUNDAY MORNING... * MINIMUM TEMPERATURES...IN THE LOWER TO MIDDLE 30S TONIGHT AND IN THE UPPER 20S TO LOWER 30S ON SATURDAY NIGHT. * IMPACTS...SENSITIVE PLANTS AND CROPS MAY BE DAMAGED OR KILLED BY THE FROST AND FREEZE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FROST ADVISORY MEANS THAT AREAS OF FROST ARE EXPECTED. SENSITIVE OUTDOOR PLANTS MAY BE KILLED IF LEFT UNPROTECTED. A FREEZE WATCH MEANS THAT SUB-FREEZING TEMPERATURES ARE POSSIBLE. THE CONDITIONS COULD KILL CROPS AND OTHER SENSITIVE VEGETATION. && $$ PAZ070-071-121300- /O.CON.KPHI.FR.Y.0015.000000T0000Z-161112T1300Z/ DELAWARE-PHILADELPHIA- INCLUDING THE CITIES OF...MEDIA...PHILADELPHIA 352 AM EST SAT NOV 12 2016 ...FROST ADVISORY REMAINS IN EFFECT UNTIL 8 AM EST THIS MORNING... * MINIMUM TEMPERATURES...IN THE LOWER TO MIDDLE 30S TONIGHT. * IMPACTS...SENSITIVE PLANTS AND CROPS MAY BE DAMAGED OR KILLED BY THE FROST. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FROST ADVISORY MEANS THAT AREAS OF FROST ARE EXPECTED. SENSITIVE OUTDOOR PLANTS MAY BE KILLED IF LEFT UNPROTECTED. && $$ MDZ019-122200- /O.CON.KPHI.FZ.A.0008.161113T0600Z-161113T1300Z/ TALBOT- INCLUDING THE CITY OF...EASTON 352 AM EST SAT NOV 12 2016 ...FREEZE WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH SUNDAY MORNING... * MINIMUM TEMPERATURES...IN THE LOWER 30S ON SATURDAY NIGHT. * IMPACTS...SENSITIVE PLANTS AND CROPS MAY BE DAMAGED OR KILLED BY THE FREEZING TEMPERATURES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FREEZE WATCH MEANS THAT SUB-FREEZING TEMPERATURES ARE POSSIBLE. THE CONDITIONS COULD KILL CROPS AND OTHER SENSITIVE VEGETATION. && $$
007 WWUS71 KPHI 121254 NPWPHI URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 754 AM EST SAT NOV 12 2016 DEZ001>003-MDZ008-012-015-020-NJZ023-130200- /O.EXP.KPHI.FR.Y.0015.000000T0000Z-161112T1300Z/ /O.CON.KPHI.FZ.A.0008.161113T0600Z-161113T1300Z/ NEW CASTLE-KENT-INLAND SUSSEX-CECIL-KENT MD-QUEEN ANNES-CAROLINE- CAPE MAY- INCLUDING THE CITIES OF...WILMINGTON...DOVER...GEORGETOWN... ELKTON...CHESTERTOWN...CENTREVILLE...DENTON... CAPE MAY COURT HOUSE 754 AM EST SAT NOV 12 2016 ...FROST ADVISORY WILL EXPIRE AT 8 AM EST THIS MORNING... ...FREEZE WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH SUNDAY MORNING... * MINIMUM TEMPERATURES...IN THE UPPER 20S TO LOWER 30S TONIGHT. * IMPACTS...SENSITIVE PLANTS AND CROPS MAY BE DAMAGED OR KILLED BY THE FROST AND FREEZE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FROST ADVISORY MEANS THAT AREAS OF FROST ARE EXPECTED. SENSITIVE OUTDOOR PLANTS MAY BE KILLED IF LEFT UNPROTECTED. A FREEZE WATCH MEANS THAT SUB-FREEZING TEMPERATURES ARE POSSIBLE. THE CONDITIONS COULD KILL CROPS AND OTHER SENSITIVE VEGETATION. && $$ PAZ070-071-121400- /O.EXP.KPHI.FR.Y.0015.000000T0000Z-161112T1300Z/ DELAWARE-PHILADELPHIA- INCLUDING THE CITIES OF...MEDIA...PHILADELPHIA 754 AM EST SAT NOV 12 2016 ...FROST ADVISORY WILL EXPIRE AT 8 AM EST THIS MORNING... TEMPERATURES WILL RISE INTO THE UPPER 30S THIS MORNING, THEREFORE THE FROST ADVISORY WILL BE ALLOWED TO EXPIRE AT 8AM THIS MORNING. $$ MDZ019-130200- /O.CON.KPHI.FZ.A.0008.161113T0600Z-161113T1300Z/ TALBOT- INCLUDING THE CITY OF...EASTON 754 AM EST SAT NOV 12 2016 ...FREEZE WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH SUNDAY MORNING... * MINIMUM TEMPERATURES...IN THE LOWER 30S ON TONIGHT. * IMPACTS...SENSITIVE PLANTS AND CROPS MAY BE DAMAGED OR KILLED BY THE FROST AND FREEZE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FREEZE WATCH MEANS THAT SUB-FREEZING TEMPERATURES ARE POSSIBLE. THE CONDITIONS COULD KILL CROPS AND OTHER SENSITIVE VEGETATION. && $$
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 11, 3:26 PM EST | Freeze Watch | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 23 hr |
Nearby
Frost Advisories in Maryland, 2016Frost Advisories in Delaware, 2016Frost Advisories in Pennsylvania, 2016Every frost advisory in 2016
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.