Alert archive / Maryland / Frost Advisories in 2015
Frost Advisory 7, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this frost advisory at Oct 18, 2015, 3:22 AM EDT for 4 counties in Maryland; Kent County, Sussex County, Delaware; Delaware County, Philadelphia County, Pennsylvania. It took effect at Oct 19, 2015, 12:00 AM EDT. It was in force for .
The area
The counties it named.
The facts
- Issued
- Oct 18, 2015, 3:22 AM EDT (07:22 UTC)
- In effect from
- Oct 19, 2015, 12:00 AM EDT
- Expired
- Oct 18, 2015, 2:41 PM EDT
- In force
- Issued by
- NWS Philadelphia/Mount Holly
Counties Kent County, DE, Sussex County, DE, Caroline County, MD, Kent County, MD, Queen Anne's County, MD, Talbot County, MD, Delaware County, PA, Philadelphia County, PA
The radar
The Dover AFB radar (KDOX), 47 km from the middle of the area, began a volume at 07:22 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, 7.4 hours before the alert went out and 144 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
- 1605 m above ground
- 0-6 km bulk shear
- 87 kt
- 0-1 km storm-relative helicity
- -138 m²/s²
- 0-3 km storm-relative helicity
- 11 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
028 WWUS71 KPHI 180722 NPWPHI URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 322 AM EDT SUN OCT 18 2015 NJZ001-007>010-012-013-020>022-027-PAZ054-055-060>062-101-103-105- 182000- /O.CON.KPHI.FZ.W.0003.000000T0000Z-151018T1300Z/ /O.CON.KPHI.FZ.W.0004.151019T0400Z-151019T1300Z/ SUSSEX-WARREN-MORRIS-HUNTERDON-SOMERSET-MIDDLESEX- WESTERN MONMOUTH-OCEAN-CUMBERLAND-ATLANTIC- SOUTHEASTERN BURLINGTON-CARBON-MONROE-BERKS-LEHIGH-NORTHAMPTON- WESTERN CHESTER-WESTERN MONTGOMERY-UPPER BUCKS- INCLUDING THE CITIES OF...NEWTON...WASHINGTON...MORRISTOWN... FLEMINGTON...SOMERVILLE...NEW BRUNSWICK...FREEHOLD...JACKSON... MILLVILLE...HAMMONTON...WHARTON STATE FOREST...JIM THORPE... STROUDSBURG...READING...ALLENTOWN...BETHLEHEM...EASTON... HONEY BROOK...OXFORD...COLLEGEVILLE...POTTSTOWN...CHALFONT... PERKASIE 322 AM EDT SUN OCT 18 2015 ...FREEZE WARNING REMAINS IN EFFECT UNTIL 9 AM EDT THIS MORNING... ...FREEZE WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM EDT MONDAY... * LOW TEMPERATURES...LOWS THIS MORNING WILL BE FROM MID 20S IN THE POCONOS AND NEAR 30 DEGREES ACROSS THE LEHIGH VALLEY... FAR NORTHWEST PHILADELPHIA SUBURBS AND NEW JERSEY PINE BARRENS. SUNDAY NIGHT...LOW TEMPERATURES WILL BE MAINLY IN THE LOWER TO MID 20S. * TIMING...THIS MORNING AND AGAIN TONIGHT INTO MONDAY MORNING. * IMPACTS...ALL COLD SENSITIVE PLANTS AND VEGETABLES WILL BE KILLED. THE GROWING SEASON IS ENDING. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FREEZE WARNING MEANS SUB-FREEZING TEMPERATURES ARE IMMINENT. THESE CONDITIONS WILL KILL CROPS AND OTHER SENSITIVE VEGETATION. && $$ DEZ001-MDZ008-NJZ015>019-023-PAZ102-104-106-182000- /O.CON.KPHI.FZ.W.0004.151019T0400Z-151019T1300Z/ /O.CON.KPHI.FR.Y.0006.000000T0000Z-151018T1300Z/ NEW CASTLE-CECIL-MERCER-SALEM-GLOUCESTER-CAMDEN- NORTHWESTERN BURLINGTON-CAPE MAY-EASTERN CHESTER- EASTERN MONTGOMERY-LOWER BUCKS- INCLUDING THE CITIES OF...WILMINGTON...ELKTON...TRENTON... PENNSVILLE...GLASSBORO...CAMDEN...CHERRY HILL...MOORESTOWN... MOUNT HOLLY...CAPE MAY COURT HOUSE...WEST CHESTER... KENNETT SQUARE...NORRISTOWN...LANSDALE...MORRISVILLE...DOYLESTOWN 322 AM EDT SUN OCT 18 2015 ...FROST ADVISORY REMAINS IN EFFECT UNTIL 9 AM EDT THIS MORNING... ...FREEZE WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM EDT MONDAY... * LOW TEMPERATURES...CLOSE TO FREEZING THIS MORNING AND IN THE UPPER 20S AND LOWER 30S ON MONDAY MORNING. * TIMING...THIS MORNING AND AGAIN TONIGHT * IMPACTS...MANY COLD SENSITIVE PLANTS AND VEGETABLES WILL LIKELY BE KILLED... ESPECIALLY ON SUNDAY NIGHT AND MONDAY MORNING. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FREEZE WARNING MEANS SUB-FREEZING TEMPERATURES ARE IMMINENT OR HIGHLY LIKELY. THESE CONDITIONS WILL KILL CROPS AND OTHER SENSITIVE VEGETATION. A FROST ADVISORY MEANS THAT FROST IS EXPECTED. SENSITIVE OUTDOOR PLANTS MAY BE KILLED IF LEFT UNCOVERED. && $$ PAZ070-071-182000- /O.NEW.KPHI.FR.Y.0007.151019T0400Z-151019T1300Z/ DELAWARE-PHILADELPHIA- INCLUDING THE CITIES OF...MEDIA...PHILADELPHIA 322 AM EDT SUN OCT 18 2015 ...FROST ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM EDT MONDAY... THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A FROST ADVISORY...WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM EDT MONDAY. * TEMPERATURES...IN THE MID 30S AROUND THE CITY. TEMPERATURES NEAR OR JUST ABOVE FREEZING ARE POSSIBLE IN OUTLYING AREAS OF DELAWARE COUNTY. * TIMING...THE LOWEST TEMPERATURES WILL BE AFTER MIDNIGHT TONIGHT THROUGH 9 AM MONDAY MORNING. * IMPACTS...MANY COLD SENSITIVE PLANTS AND VEGETABLES COULD BE KILLED. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FROST ADVISORY MEANS THAT WIDESPREAD FROST IS EXPECTED. SENSITIVE OUTDOOR PLANTS MAY BE KILLED IF LEFT UNCOVERED. && $$ DEZ002-003-MDZ012-015-019-020-182000- /O.NEW.KPHI.FR.Y.0007.151019T0400Z-151019T1300Z/ KENT-INLAND SUSSEX-KENT MD-QUEEN ANNES-TALBOT-CAROLINE- INCLUDING THE CITIES OF...DOVER...GEORGETOWN...CHESTERTOWN... CENTREVILLE...EASTON...DENTON 322 AM EDT SUN OCT 18 2015 ...FROST ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM EDT MONDAY... THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A FROST ADVISORY...WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM EDT MONDAY. * TEMPERATURES...RANGING FROM NEAR FREEZING TO MID 30S. * TIMING...THE LOWEST TEMPERATURES WILL BE AFTER MIDNIGHT TONIGHT THROUGH 9 AM MONDAY MORNING. * IMPACTS...MANY COLD SENSITIVE PLANTS AND VEGETABLES COULD BE KILLED. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FROST ADVISORY MEANS THAT WIDESPREAD FROST IS EXPECTED. SENSITIVE OUTDOOR PLANTS MAY BE KILLED IF LEFT UNCOVERED. && $$
2 follow-up statements
435 WWUS71 KPHI 181256 NPWPHI URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 856 AM EDT SUN OCT 18 2015 NJZ001-007>010-012-013-020>022-027-PAZ054-055-060>062-101-103-105- 182100- /O.EXP.KPHI.FZ.W.0003.000000T0000Z-151018T1300Z/ /O.CON.KPHI.FZ.W.0004.151019T0400Z-151019T1300Z/ SUSSEX-WARREN-MORRIS-HUNTERDON-SOMERSET-MIDDLESEX- WESTERN MONMOUTH-OCEAN-CUMBERLAND-ATLANTIC- SOUTHEASTERN BURLINGTON-CARBON-MONROE-BERKS-LEHIGH-NORTHAMPTON- WESTERN CHESTER-WESTERN MONTGOMERY-UPPER BUCKS- INCLUDING THE CITIES OF...NEWTON...WASHINGTON...MORRISTOWN... FLEMINGTON...SOMERVILLE...NEW BRUNSWICK...FREEHOLD...JACKSON... MILLVILLE...HAMMONTON...WHARTON STATE FOREST...JIM THORPE... STROUDSBURG...READING...ALLENTOWN...BETHLEHEM...EASTON... HONEY BROOK...OXFORD...COLLEGEVILLE...POTTSTOWN...CHALFONT... PERKASIE 856 AM EDT SUN OCT 18 2015 ...FREEZE WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM EDT MONDAY... ...FREEZE WARNING WILL EXPIRE AT 9 AM EDT THIS MORNING... * LOW TEMPERATURES...MAINLY IN THE LOWER TO MID 20S. * TIMING...TONIGHT AND EARLY MONDAY MORNING. * IMPACTS...ALL COLD SENSITIVE PLANTS AND VEGETABLES WILL BE KILLED. THE GROWING SEASON IS ENDING. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FREEZE WARNING MEANS SUB-FREEZING TEMPERATURES ARE IMMINENT. THESE CONDITIONS WILL KILL CROPS AND OTHER SENSITIVE VEGETATION. && $$ DEZ001-MDZ008-NJZ015>019-023-PAZ102-104-106-182100- /O.EXP.KPHI.FR.Y.0006.000000T0000Z-151018T1300Z/ /O.CON.KPHI.FZ.W.0004.151019T0400Z-151019T1300Z/ NEW CASTLE-CECIL-MERCER-SALEM-GLOUCESTER-CAMDEN- NORTHWESTERN BURLINGTON-CAPE MAY-EASTERN CHESTER- EASTERN MONTGOMERY-LOWER BUCKS- INCLUDING THE CITIES OF...WILMINGTON...ELKTON...TRENTON... PENNSVILLE...GLASSBORO...CAMDEN...CHERRY HILL...MOORESTOWN... MOUNT HOLLY...CAPE MAY COURT HOUSE...WEST CHESTER... KENNETT SQUARE...NORRISTOWN...LANSDALE...MORRISVILLE...DOYLESTOWN 856 AM EDT SUN OCT 18 2015 ...FREEZE WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM EDT MONDAY... ...FROST ADVISORY WILL EXPIRE AT 9 AM EDT THIS MORNING... * LOW TEMPERATURES...IN THE UPPER 20S AND LOWER 30S EARLY MONDAY MORNING. * TIMING...TONIGHT AND EARLY MONDAY MORNING. * IMPACTS...COLD SENSITIVE PLANTS AND VEGETABLES WILL LIKELY BE KILLED. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FREEZE WARNING MEANS SUB-FREEZING TEMPERATURES ARE IMMINENT. THESE CONDITIONS WILL KILL CROPS AND OTHER SENSITIVE VEGETATION. && $$ PAZ070-071-182100- /O.CON.KPHI.FR.Y.0007.151019T0400Z-151019T1300Z/ DELAWARE-PHILADELPHIA- INCLUDING THE CITIES OF...MEDIA...PHILADELPHIA 856 AM EDT SUN OCT 18 2015 ...FROST ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM EDT MONDAY... * TEMPERATURES...IN THE MID 30S IN AND AROUND CENTER CITY. TEMPERATURES NEAR FREEZING ARE POSSIBLE IN OUTLYING AREAS. * TIMING...THE LOWEST TEMPERATURES WILL BE AFTER MIDNIGHT TONIGHT THROUGH 9 AM MONDAY MORNING. * IMPACTS...MANY COLD SENSITIVE PLANTS AND VEGETABLES COULD BE KILLED. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FROST ADVISORY MEANS THAT WIDESPREAD FROST IS EXPECTED. SENSITIVE OUTDOOR PLANTS MAY BE KILLED IF LEFT UNCOVERED. && $$ DEZ002-003-MDZ012-015-019-020-182100- /O.CON.KPHI.FR.Y.0007.151019T0400Z-151019T1300Z/ KENT-INLAND SUSSEX-KENT MD-QUEEN ANNES-TALBOT-CAROLINE- INCLUDING THE CITIES OF...DOVER...GEORGETOWN...CHESTERTOWN... CENTREVILLE...EASTON...DENTON 856 AM EDT SUN OCT 18 2015 ...FROST ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM EDT MONDAY... * TEMPERATURES...RANGING FROM NEAR FREEZING TO THE MID 30S. * TIMING...THE LOWEST TEMPERATURES WILL BE AFTER MIDNIGHT TONIGHT THROUGH 9 AM MONDAY MORNING. * IMPACTS...MANY COLD SENSITIVE PLANTS AND VEGETABLES COULD BE KILLED. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FROST ADVISORY MEANS THAT WIDESPREAD FROST IS EXPECTED. SENSITIVE OUTDOOR PLANTS MAY BE KILLED IF LEFT UNCOVERED. && $$
547 WWUS71 KPHI 181841 NPWPHI URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 241 PM EDT SUN OCT 18 2015 PAZ070-071-191300- /O.UPG.KPHI.FR.Y.0007.151019T0400Z-151019T1300Z/ /O.EXA.KPHI.FZ.W.0004.151019T0400Z-151019T1300Z/ DELAWARE-PHILADELPHIA- INCLUDING THE CITIES OF...MEDIA...PHILADELPHIA 241 PM EDT SUN OCT 18 2015 ...FREEZE WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM EDT MONDAY... THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A FREEZE WARNING...WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM EDT MONDAY. * TEMPERATURES...FALLING INTO THE LOWER 30S BY MONDAY MORNING. * TIMING...THE LOWEST TEMPERATURES WILL OCCUR CLOSE TO SUNRISE ON MONDAY, BUT SUBFREEZING TEMPERATURES IN MORE OUTLYING AREAS COULD OCCUR SEVERAL HOURS SOONER. * IMPACTS...UNPROTECTED COLD SENSITIVE PLANTS AND VEGETABLES COULD BE INJURED OR KILLED. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FREEZE WARNING MEANS SUB-FREEZING TEMPERATURES ARE IMMINENT OR HIGHLY LIKELY. THESE CONDITIONS WILL KILL UNPROTECTED CROPS AND OTHER SENSITIVE VEGETATION. PLEASE TAKE PROTECTIVE MEASURES IF YOU WANT TO EXTEND THE GROWING SEASON AND IF NOT DONE SO ALREADY, PLEASE BRING IN TROPICAL PLANTS. && $$ DEZ002-003-MDZ012-015-019-020-191300- /O.UPG.KPHI.FR.Y.0007.151019T0400Z-151019T1300Z/ /O.EXA.KPHI.FZ.W.0004.151019T0400Z-151019T1300Z/ KENT-INLAND SUSSEX-KENT MD-QUEEN ANNES-TALBOT-CAROLINE- INCLUDING THE CITIES OF...DOVER...GEORGETOWN...CHESTERTOWN... CENTREVILLE...EASTON...DENTON 241 PM EDT SUN OCT 18 2015 ...FREEZE WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM EDT MONDAY... THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A FREEZE WARNING...WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM EDT MONDAY. THE FROST ADVISORY IS NO LONGER IN EFFECT. * TEMPERATURES...AROUND 30 DEGREES BY MONDAY MORNING. * TIMING...THE LOWEST TEMPERATURES WILL BE AFTER MIDNIGHT TONIGHT THROUGH 9 AM MONDAY MORNING. * IMPACTS...MANY UNPROTECTED COLD SENSITIVE PLANTS AND VEGETABLES COULD BE INJURED OR KILLED. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FREEZE WARNING MEANS SUB-FREEZING TEMPERATURES ARE IMMINENT OR HIGHLY LIKELY. THESE CONDITIONS WILL KILL UNPROTECTED CROPS AND OTHER SENSITIVE VEGETATION. PLEASE TAKE PROTECTIVE MEASURES IF YOU WANT TO EXTEND THE GROWING SEASON AND IF NOT DONE SO ALREADY, PLEASE BRING IN TROPICAL PLANTS. && $$ DEZ001-MDZ008-NJZ001-007>010-012-013-015>023-027-PAZ054-055- 060>062-101>106-191300- /O.CON.KPHI.FZ.W.0004.151019T0400Z-151019T1300Z/ NEW CASTLE-CECIL-SUSSEX-WARREN-MORRIS-HUNTERDON-SOMERSET- MIDDLESEX-WESTERN MONMOUTH-MERCER-SALEM-GLOUCESTER-CAMDEN- NORTHWESTERN BURLINGTON-OCEAN-CUMBERLAND-ATLANTIC-CAPE MAY- SOUTHEASTERN BURLINGTON-CARBON-MONROE-BERKS-LEHIGH-NORTHAMPTON- WESTERN CHESTER-EASTERN CHESTER-WESTERN MONTGOMERY- EASTERN MONTGOMERY-UPPER BUCKS-LOWER BUCKS- INCLUDING THE CITIES OF...WILMINGTON...ELKTON...NEWTON... WASHINGTON...MORRISTOWN...FLEMINGTON...SOMERVILLE... NEW BRUNSWICK...FREEHOLD...TRENTON...PENNSVILLE...GLASSBORO... CAMDEN...CHERRY HILL...MOORESTOWN...MOUNT HOLLY...JACKSON... MILLVILLE...HAMMONTON...CAPE MAY COURT HOUSE... WHARTON STATE FOREST...JIM THORPE...STROUDSBURG...READING... ALLENTOWN...BETHLEHEM...EASTON...HONEY BROOK...OXFORD... WEST CHESTER...KENNETT SQUARE...COLLEGEVILLE...POTTSTOWN... NORRISTOWN...LANSDALE...CHALFONT...PERKASIE...MORRISVILLE... DOYLESTOWN 241 PM EDT SUN OCT 18 2015 ...FREEZE WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM EDT MONDAY... * LOW TEMPERATURES...MAINLY IN THE MID TO UPPER 20S. SOME LOWER 30S POSSIBLE IN THE HIGHER TERRAIN AND THE PINE BARRENS. * TIMING...TONIGHT AND EARLY MONDAY MORNING. SUB FREEZING TEMPERATURES CAN START AS EARLY AS THIS EVENING IN THE POCONOS, FAR NORTHWEST NEW JERSEY AND DEEP IN THE PINE BARRENS. * IMPACTS...GIVEN THIS IS THE SECOND CONSECUTIVE NIGHT OF SUB FREEZING TEMPERATURES FOR MANY AREAS, ALL COLD SENSITIVE PLANTS AND VEGETABLES WILL BE KILLED. THE GROWING SEASON IS ENDING. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FREEZE WARNING MEANS SUB-FREEZING TEMPERATURES ARE IMMINENT. THESE CONDITIONS WILL 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 |
|---|---|---|---|---|
| Oct 18, 5:38 PM EDT | Special Weather Statement | PHI | Caroline | 82 min |
| Oct 18, 4:36 PM EDT | Special Weather Statement | PHI | Kent | 69 min |
| Oct 18, 4:54 PM EDT | Special Weather Statement | PHI | Kent, Sussex | 66 min |
| Oct 18, 5:49 PM EDT | Special Weather Statement | PHI | Montgomery | 56 min |
Nearby
Frost Advisories in Maryland, 2015Frost Advisories in Delaware, 2015Frost Advisories in Pennsylvania, 2015Every frost advisory in 2015
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.