Alert archive / Delaware / High Wind Warnings in 2018
High Wind Warning 3, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this high wind warning at Oct 11, 2018, 11:54 PM EDT for Sussex County, Delaware; Cape May County, New Jersey. It was in force for 9 hr. 6 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Oct 11, 2018, 11:54 PM EDT (03:54 UTC)
- Expired
- Oct 12, 2018, 9:10 AM EDT
- In force
- 9 hr
- Issued by
- NWS Philadelphia/Mount Holly
Counties Sussex County, DE, Cape May County, NJ
The radar
The Dover AFB radar (KDOX), 31 km from the middle of the area, began a volume at 03:55 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Oct 12, 2:04 AM EDT | FLOOD | Rehoboth Beach, DE | RT 1 HAS STANDING WATER ON ROADWAY FROM REHOBOTH BEACH TO FENWICK ISLAND. |
| Oct 12, 2:30 AM EDT | FLOOD | 2 N Millsboro, DE | DOC FRAME ROAD CLOSED FROM FLOODING. TIME ESTIMATED. |
| Oct 12, 4:07 AM EDT | FLOOD | Lower Twp, NJ | FLOODING ON NJ 47 NORTH OF CR 624/WEST RIO GRAND AVE. ALL LANES CLOSE AND DETOURED. |
| Oct 12, 4:15 AM EDT | FLOOD | North Wildwood, NJ | FLOODING ON NJ 147 BETWEEN NEW YORK AVE/WALNUT AVE AND W ANGLESEA DR. ALL LANES CLOSED AND DETOURED. |
| Oct 12, 8:28 AM EDT | HEAVY RAIN 5 | Selbyville, DE | STORM TOTAL RAINFALL. |
| Oct 12, 9:07 AM EDT | HEAVY RAIN 5.25 | Georgetown, DE | 24-HOUR RAINFALL. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Wallops Is Stn, VA (KWAL), launched 00:00Z, 3.9 hours before the alert went out and 109 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
- 959 J/kg
- Mixed-layer CIN
- -11 J/kg
- Mixed-layer LCL
- 634 m above ground
- 0-6 km bulk shear
- 49 kt
- 0-1 km storm-relative helicity
- 212 m²/s²
- 0-3 km storm-relative helicity
- 200 m²/s²
- Significant tornado parameter
- 1.1
- Supercell composite
- 4.3
The text
As transmitted.
307 WWUS71 KPHI 120354 NPWPHI URGENT - WEATHER MESSAGE National Weather Service Mount Holly NJ 1154 PM EDT Thu Oct 11 2018 DEZ003-004-121200- /O.UPG.KPHI.WI.Y.0008.181012T0600Z-181012T1200Z/ /O.NEW.KPHI.HW.W.0003.181012T0354Z-181012T1200Z/ Inland Sussex-Delaware Beaches- Including the cities of Georgetown and Rehoboth Beach 1154 PM EDT Thu Oct 11 2018 ...HIGH WIND WARNING IN EFFECT UNTIL 8 AM EDT FRIDAY... The National Weather Service in Mount Holly has issued a High Wind Warning, which is in effect until 8 AM EDT Friday. The Wind Advisory is no longer in effect. * WINDS...North 30 to 40 mph with gusts up to 60 mph. * TIMING...Late tonight into early Friday morning. * IMPACTS...Strong winds may blow down limbs, trees, and power lines. Scattered power outages are expected. PRECAUTIONARY/PREPAREDNESS ACTIONS... A High Wind Warning means a hazardous high wind event is expected or occurring. Sustained wind speeds of at least 40 mph or gusts of 58 mph or more can lead to property damage. && $$ DEZ002-MDZ019-020-NJZ023-024-121200- /O.EXT.KPHI.WI.Y.0008.181012T0354Z-181012T1200Z/ Kent-Talbot-Caroline-Cape May-Atlantic Coastal Cape May- Including the cities of Dover, Easton, Denton, Cape May Court House, and Ocean City 1154 PM EDT Thu Oct 11 2018 ...WIND ADVISORY NOW IN EFFECT UNTIL 8 AM EDT FRIDAY... * WINDS...North 20 to 30 mph with gusts up to 50 mph. * TIMING...Late tonight into early Friday morning. * IMPACTS...Strong winds may blow down limbs, trees, and power lines. Scattered power outages are expected. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Wind Advisory means that very windy conditions are expected. Winds this strong can make driving difficult...especially for high profile vehicles. Use extra caution. Light-weight outdoor objects such as patio furniture and garbage cans should be secured. && $$
2 follow-up statements
786 WWUS71 KPHI 120602 NPWPHI URGENT - WEATHER MESSAGE National Weather Service Mount Holly NJ 202 AM EDT Fri Oct 12 2018 NJZ023-024-121500- /O.UPG.KPHI.WI.Y.0008.000000T0000Z-181012T1200Z/ /O.EXB.KPHI.HW.W.0003.000000T0000Z-181012T1500Z/ Cape May-Atlantic Coastal Cape May- Including the cities of Cape May Court House and Ocean City 202 AM EDT Fri Oct 12 2018 ...HIGH WIND WARNING IN EFFECT UNTIL 11 AM EDT THIS MORNING... The National Weather Service in Mount Holly has issued a High Wind Warning, which is in effect until 11 AM EDT this morning. The Wind Advisory is no longer in effect. * WINDS...North to northwest 30 to 40 mph with gusts up to 60 mph. * TIMING...Through early this morning. * IMPACTS...Strong winds may blow down limbs, trees, and power lines. Scattered power outages are expected. PRECAUTIONARY/PREPAREDNESS ACTIONS... A High Wind Warning means a hazardous high wind event is expected or occurring. Sustained wind speeds of at least 40 mph or gusts of 58 mph or more can lead to property damage. && $$ DEZ003-004-121500- /O.EXT.KPHI.HW.W.0003.000000T0000Z-181012T1500Z/ Inland Sussex-Delaware Beaches- Including the cities of Georgetown and Rehoboth Beach 202 AM EDT Fri Oct 12 2018 ...HIGH WIND WARNING NOW IN EFFECT UNTIL 11 AM EDT THIS MORNING... * WINDS...Northwest 30 to 40 mph with gusts up to 60 mph. * TIMING...Through early this morning. * IMPACTS...Strong winds may blow down limbs, trees, and power lines. Scattered power outages are expected. PRECAUTIONARY/PREPAREDNESS ACTIONS... A High Wind Warning means a hazardous high wind event is expected or occurring. Sustained wind speeds of at least 40 mph or gusts of 58 mph or more can lead to property damage. && $$ DEZ001-MDZ008-012-015-NJZ013-014-016>022-025>027-121500- /O.EXB.KPHI.WI.Y.0008.000000T0000Z-181012T1500Z/ New Castle-Cecil-Kent MD-Queen Annes-Western Monmouth- Eastern Monmouth-Salem-Gloucester-Camden-Northwestern Burlington- Ocean-Cumberland-Atlantic-Coastal Atlantic-Coastal Ocean- Southeastern Burlington- Including the cities of Wilmington, Elkton, Chestertown, Centreville, Freehold, Sandy Hook, Pennsville, Glassboro, Camden, Cherry Hill, Moorestown, Mount Holly, Jackson, Millville, Hammonton, Atlantic City, Long Beach Island, and Wharton State Forest 202 AM EDT Fri Oct 12 2018 ...WIND ADVISORY IN EFFECT UNTIL 11 AM EDT THIS MORNING... The National Weather Service in Mount Holly has issued a Wind Advisory, which is in effect until 11 AM EDT this morning. * WINDS...North to northwest 20 to 30 mph with gusts up to 50 mph. * TIMING...Through early this morning. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Wind Advisory means that very windy conditions are expected. Winds this strong can make driving difficult...especially for high profile vehicles. Use extra caution. Light-weight outdoor objects such as patio furniture and garbage cans should be secured. && $$ DEZ002-MDZ019-020-121500- /O.EXT.KPHI.WI.Y.0008.000000T0000Z-181012T1500Z/ Kent-Talbot-Caroline- Including the cities of Dover, Easton, and Denton 202 AM EDT Fri Oct 12 2018 ...WIND ADVISORY NOW IN EFFECT UNTIL 11 AM EDT THIS MORNING... * WINDS...Northwest 20 to 30 mph with gusts up to 50 mph. * TIMING...Through early this morning. * IMPACTS...Strong winds may blow down limbs, trees, and power lines. Scattered power outages are expected. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Wind Advisory means that very windy conditions are expected. Winds this strong can make driving difficult...especially for high profile vehicles. Use extra caution. Light-weight outdoor objects such as patio furniture and garbage cans should be secured. && $$
527 WWUS71 KPHI 121310 NPWPHI URGENT - WEATHER MESSAGE National Weather Service Mount Holly NJ 910 AM EDT Fri Oct 12 2018 DEZ003-004-NJZ023-024-121500- /O.CAN.KPHI.HW.W.0003.000000T0000Z-181012T1500Z/ /O.EXA.KPHI.WI.Y.0008.000000T0000Z-181012T1500Z/ Inland Sussex-Delaware Beaches-Cape May-Atlantic Coastal Cape May- Including the cities of Georgetown, Rehoboth Beach, Cape May Court House, and Ocean City 910 AM EDT Fri Oct 12 2018 ...WIND ADVISORY IN EFFECT UNTIL 11 AM EDT THIS MORNING... ...HIGH WIND WARNING IS CANCELLED... The National Weather Service in Mount Holly has issued a Wind Advisory, which is in effect until 11 AM EDT this morning. The High Wind Warning has been cancelled. * WINDS...Northwest 20 to 25 mph with gusts up to 50 mph. * TIMING...Through late morning. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Wind Advisory means that very windy conditions are expected. Winds this strong can make driving difficult...especially for high profile vehicles. Use extra caution. Light-weight outdoor objects such as patio furniture and garbage cans should be secured. && $$ DEZ001-002-MDZ008-012-015-019-020-NJZ013-014-016>022-025>027- 121500- /O.CON.KPHI.WI.Y.0008.000000T0000Z-181012T1500Z/ New Castle-Kent-Cecil-Kent MD-Queen Annes-Talbot-Caroline- Western Monmouth-Eastern Monmouth-Salem-Gloucester-Camden- Northwestern Burlington-Ocean-Cumberland-Atlantic- Coastal Atlantic-Coastal Ocean-Southeastern Burlington- Including the cities of Wilmington, Dover, Elkton, Chestertown, Centreville, Easton, Denton, Freehold, Sandy Hook, Pennsville, Glassboro, Camden, Cherry Hill, Moorestown, Mount Holly, Jackson, Millville, Hammonton, Atlantic City, Long Beach Island, and Wharton State Forest 910 AM EDT Fri Oct 12 2018 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 11 AM EDT THIS MORNING... * WINDS...Northwest 20 to 30 mph with gusts up to 50 mph. * TIMING...Through late morning. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Wind Advisory means that very windy conditions are expected. Winds this strong can make driving difficult...especially for high profile vehicles. Use extra caution. Light-weight outdoor objects such as patio furniture and garbage cans should be secured. && $$ MPS
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 11, 8:27 PM EDT | Areal Flood Advisory | PHI | Kent, New Castle | 8 hr |
| Oct 11, 10:06 PM EDT | Flash Flood Warning | PHI | Kent | 6 hr |
| Oct 11, 11:47 PM EDT | Flash Flood Warning | PHI | Kent, Sussex | 4 hr |
| Oct 12, 12:08 AM EDT | Flash Flood Warning | PHI | Kent, New Castle | 4 hr |
| Oct 12, 3:28 AM EDT | Areal Flood Warning | PHI | Kent, Sussex | 6 hr |
| Oct 12, 3:36 AM EDT | Areal Flood Warning | PHI | Kent | 6 hr |
| Oct 12, 3:46 AM EDT | Areal Flood Warning | PHI | Kent, New Castle | 7 hr |
| Oct 12, 11:42 AM EDT | Coastal Flood Advisory | PHI | Sussex | 4 hr |
| Oct 12, 2:46 PM EDT | Areal Flood Warning | PHI | Kent | 7 hr |
| Oct 11, 8:09 PM EDT | Special Weather Statement | PHI | Salem | 36 min |
| Oct 11, 8:41 PM EDT | Special Weather Statement | PHI | Gloucester, Salem | 34 min |
| Oct 11, 9:10 PM EDT | Special Weather Statement | PHI | Camden, Gloucester, Salem | 35 min |
| Oct 11, 9:43 PM EDT | Areal Flood Advisory | PHI | Burlington, Camden, Gloucester | 8 hr |
| Oct 11, 10:45 PM EDT | Areal Flood Advisory | PHI | Atlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 1 more | 3 hr |
| Oct 12, 12:14 AM EDT | Storm Warning | PHI | 9 hr | |
| Oct 12, 12:50 AM EDT | Areal Flood Advisory | PHI | Burlington, Mercer, Monmouth, Ocean | 3 hr |
| Oct 12, 1:15 AM EDT | Areal Flood Advisory | PHI | Atlantic, Burlington, Cape May, Cumberland, Ocean | 40 min |
| Oct 12, 1:52 AM EDT | Flash Flood Warning | PHI | Atlantic, Burlington, Cape May, Cumberland, Ocean | 4 hr |
| Oct 12, 2:55 AM EDT | Areal Flood Advisory | PHI | Gloucester, Hunterdon, Mercer, Middlesex, Somerset, Warren | 2 hr |
| Oct 12, 3:17 AM EDT | Flash Flood Warning | PHI | Burlington, Mercer, Monmouth, Ocean | 4 hr |
| Oct 12, 5:32 AM EDT | Areal Flood Warning | PHI | Atlantic, Burlington, Cape May, Cumberland, Ocean | 4 hr |
| Oct 12, 7:02 AM EDT | Areal Flood Warning | PHI | Burlington, Mercer, Monmouth, Ocean | 4 hr |
| Oct 12, 11:45 AM EDT | Small Craft Advisory | PHI | 12 hr | |
| Oct 12, 3:20 PM EDT | River Flood Warning | PHI | Burlington | 37 hr |
Nearby
High Wind Warnings in Delaware, 2018High Wind Warnings in New Jersey, 2018Every high wind warning in 2018
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.