Alert archive / Pennsylvania / Areal Flood Advisories in 2017
Areal Flood Advisory 10, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this areal flood advisory at Apr 6, 2017, 11:58 AM EDT for 7 counties in Pennsylvania; Cecil County, Kent County, Maryland. It was in force for 4 hr.
The area
The counties it named.
The facts
- Issued
- Apr 6, 2017, 11:58 AM EDT (15:58 UTC)
- Expired
- Apr 6, 2017, 4:00 PM EDT
- In force
- 4 hr
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
Counties Cecil County, MD, Kent County, MD, Berks County, PA, Carbon County, PA, Chester County, PA, Lehigh County, PA, Monroe County, PA, Montgomery County, PA, Northampton County, PA
The radar
The Philadelphia radar (KDIX), 114 km from the middle of the area, began a volume at 15:59 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
Washington/Dulle, VA (KIAD), launched 12:00Z, 4.0 hours before the alert went out and 211 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
- 550 m above ground
- 0-6 km bulk shear
- 75 kt
- 0-1 km storm-relative helicity
- 243 m²/s²
- 0-3 km storm-relative helicity
- 459 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this areal flood advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Philadelphia/Mount Holly wrote its last area forecast discussion before this areal flood advisory went out at Apr 6, 9:36 AM EDT, 2 hours 22 minutes earlier.
Area forecast discussion, Apr 6, 9:36 AM EDT, 2 hours 22 minutes before
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Service Notice</title>
<link rel="stylesheet" href="index.css">
</head>
<body>
<main class="wrap">
<section class="card" role="status" aria-live="polite">
<div class="status" id="status">Temporary Notice</div>
<h1 id="headline">This service is currently unavailable.</h1>
<p id="message1">
The site you requested is temporarily down for maintenance or an unexpected outage.
</p>
<p id="message2">
Please try again in a few minutes.
</p>
<p class="small" id="detail">
If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
</p>
</section>
</main>
<script src="index.js"></script>
</body>
</html>Hazardous weather outlook, Apr 6, 3:39 AM EDT, 8 hours 19 minutes before
Hazardous Weather Outlook National Weather Service Mount Holly NJ 339 AM EDT Thu Apr 6 2017 NJZ017>019-PAZ060-061-070-071-101>106-070745- Gloucester-Camden-Northwestern Burlington-Berks-Lehigh-Delaware- Philadelphia-Western Chester-Eastern Chester-Western Montgomery- Eastern Montgomery-Upper Bucks-Lower Bucks- 339 AM EDT Thu Apr 6 2017 ...FLOOD WATCH IN EFFECT FROM 8 AM EDT THIS MORNING THROUGH THIS EVENING... This Hazardous Weather Outlook is for southern New Jersey, east central Pennsylvania and southeast Pennsylvania. .DAY ONE...Today and Tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flood Watch. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to Standard Operating Procedures. NJZ001-007>010-015-PAZ054-055-062-070745- Sussex-Warren-Morris-Hunterdon-Somerset-Mercer-Carbon-Monroe- Northampton- 339 AM EDT Thu Apr 6 2017 ...FLOOD WATCH IN EFFECT FROM 8 AM EDT THIS MORNING THROUGH FRIDAY AFTERNOON... This Hazardous Weather Outlook is for central New Jersey, northern New Jersey, northwest New Jersey, east central Pennsylvania and northeast Pennsylvania. .DAY ONE...Today and Tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flood Watch. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flood Watch. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to Standard Operating Procedures. NJZ027-070745- Southeastern Burlington- 339 AM EDT Thu Apr 6 2017 ...WIND ADVISORY IN EFFECT FROM 8 AM THIS MORNING TO 5 PM EDT THIS AFTERNOON... This Hazardous Weather Outlook is for southern New Jersey. .DAY ONE...Today and Tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Wind Advisory. The risk for flooding due to heavy rain increases today. Poor drainage areas, including urban areas, are especially vulnerable. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to Standard Operating Procedures. NJZ012-013-070745- Middlesex-Western Monmouth- 339 AM EDT Thu Apr 6 2017 ...FLOOD WATCH IN EFFECT FROM 8 AM EDT THIS MORNING THROUGH FRIDAY AFTERNOON... This Hazardous Weather Outlook is for central New Jersey and northern New Jersey. .DAY ONE...Today and Tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flood Watch. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flood Watch. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to Standard Operating Procedures. NJZ014-020-026-070745- Eastern Monmouth-Ocean-Coastal Ocean- 339 AM EDT Thu Apr 6 2017 ...WIND ADVISORY IN EFFECT FROM 8 AM THIS MORNING TO 5 PM EDT THIS AFTERNOON... This Hazardous Weather Outlook is for central New Jersey and southern New Jersey. .DAY ONE...Today and Tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Wind Advisory. The risk for flooding due to heavy rain increases today. Poor drainage areas, including urban areas, are especially vulnerable. Additionally, minor tidal flooding is possible with the Thursday afternoon high tide. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to Standard Operating Procedures. DEZ002>004-MDZ012-015-019-020-NJZ021>025-070745- Kent-Inland Sussex-Delaware Beaches-Kent MD-Queen Annes-Talbot- Caroline-Cumberland-Atlantic-Cape May-Atlantic Coastal Cape May- Coastal Atlantic- 339 AM EDT Thu Apr 6 2017 ...WIND ADVISORY IN EFFECT FROM 8 AM THIS MORNING TO 5 PM EDT THIS AFTERNOON... This Hazardous Weather Outlook is for central Delaware, southern Delaware, northeast Maryland and southern New Jersey. .DAY ONE...Today and Tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Wind Advisory. The risk for flooding due to heavy rain increases today. Poor drainage areas, including urban areas, are especially vulnerable. There is a chance of severe thunderstorms today. The primary hazard is damaging winds. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Spotter activation may be needed today. DEZ001-MDZ008-NJZ016-070745- New Castle-Cecil-Salem- 339 AM EDT Thu Apr 6 2017 ...FLOOD WATCH IN EFFECT FROM 8 AM EDT THIS MORNING THROUGH THIS EVENING... This Hazardous Weather Outlook is for northern Delaware, northeast Maryland and southern New Jersey. .DAY ONE...Today and Tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flood Watch. There is a chance of severe thunderstorms today. The primary hazard is damaging winds. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Spotter activation may be needed today. ANZ430-455-070745- Delaware Bay waters north of East Point NJ to Slaughter Beach DE- Coastal waters from Cape Henlopen to Fenwick Island DE out 20 nm- 339 AM EDT Thu Apr 6 2017 This Hazardous Weather Outlook is for Atlantic coastal waters and Delaware Bay Waters. .DAY ONE...Today and Tonight. A period of gale-force gusts is possible today, especially with thunderstorms. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to Standard Operating Procedures. ANZ431-450>454-070745- Delaware Bay waters south of East Point NJ to Slaughter Beach DE- Coastal waters from Sandy Hook to Manasquan Inlet NJ out 20 nm- Coastal waters from Manasquan Inlet to Little Egg Inlet NJ out 20 nm- Coastal waters from Little Egg Inlet to Great Egg Inlet NJ out 20 nm- Coastal waters from Great Egg Inlet to Cape May NJ out 20 nm- Coastal waters from Cape May NJ to Cape Henlopen DE out 20 nm- 339 AM EDT Thu Apr 6 2017 ...GALE WARNING IN EFFECT UNTIL 6 PM EDT THIS EVENING... This Hazardous Weather Outlook is for Atlantic coastal waters and Delaware Bay Waters. .DAY ONE...Today and Tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Gale Warning. Thunderstorms could cause strong winds today as well. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to Standard Operating Procedures. CMS
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 6, 12:29 PM EDT | Special Marine Warning | PHI | 61 min | |
| Apr 6, 1:00 PM EDT | Special Weather Statement | PHI | Salem | 60 min |
| Apr 6, 1:21 PM EDT | Special Marine Warning | PHI | 54 min | |
| Apr 6, 1:33 PM EDT | Special Marine Warning | PHI | 57 min | |
| Apr 6, 1:53 PM EDT | Special Marine Warning | PHI | 22 min | |
| Apr 6, 2:07 PM EDT | Special Weather Statement | PHI | Atlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 6 more | 53 min |
| Apr 6, 2:15 PM EDT | Special Marine Warning | PHI | 45 min | |
| Apr 6, 2:24 PM EDT | Special Marine Warning | PHI | 36 min | |
| Apr 6, 2:29 PM EDT | Areal Flood Advisory | PHI | Burlington, Camden, Cumberland, Gloucester, Salem | 4 hr |
| Apr 6, 2:56 PM EDT | Special Weather Statement | PHI | Camden, Cumberland, Gloucester, Salem | 64 min |
| Apr 6, 3:02 PM EDT | Special Marine Warning | PHI | 58 min | |
| Apr 6, 3:09 PM EDT | Special Marine Warning | PHI | 51 min | |
| Apr 6, 3:36 PM EDT | Special Weather Statement | PHI | Atlantic, Monmouth, Ocean | 24 min |
| Apr 6, 3:56 PM EDT | Special Weather Statement | PHI | Middlesex, Monmouth, Ocean | 49 min |
| Apr 6, 3:57 PM EDT | Areal Flood Advisory | PHI | Middlesex, Monmouth, Morris, Ocean | 4 hr |
| Apr 6, 3:59 PM EDT | Special Marine Warning | PHI | 61 min | |
| Apr 6, 4:26 PM EDT | Areal Flood Advisory | PHI | Hunterdon, Sussex, Warren | 4 hr |
| Apr 6, 7:41 PM EDT | Areal Flood Warning | PHI | Hunterdon, Somerset | 3 hr |
| Apr 6, 4:02 PM EDT | Areal Flood Advisory | PHI | Berks, Carbon, Chester, Lehigh, Monroe, Montgomery and 1 more | 6 hr |
| Apr 6, 11:59 AM EDT | Special Weather Statement | PHI | Caroline | 31 min |
| Apr 6, 12:17 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Kent, Queen Anne's, Talbot | 24 min |
| Apr 6, 1:08 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Talbot | 40 min |
| Apr 6, 2:13 PM EDT | Special Weather Statement | PHI | Kent, Queen Anne's, Talbot | 47 min |
| Apr 6, 4:41 PM EDT | Special Weather Statement | PHI | Talbot | 34 min |
Nearby
Areal Flood Advisories in Pennsylvania, 2017Areal Flood Advisories in Maryland, 2017Every areal flood advisory in 2017
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.