Alert archive / Pennsylvania / Areal Flood Advisories in 2019
Areal Flood Advisory 20, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this areal flood advisory at Apr 14, 2019, 9:19 PM EDT for Berks County, Pennsylvania. It was in force for 3 hr.
The area
The counties it named.
The facts
- Issued
- Apr 14, 2019, 9:19 PM EDT (01:19 UTC)
- Expired
- Apr 15, 2019, 12:15 AM EDT
- In force
- 3 hr
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
County Berks County, PA
The radar
The Philadelphia radar (KDIX), 139 km from the middle of the area, began a volume at 01:18 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 00:00Z, 1.3 hours before the alert went out and 206 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
- 243 J/kg
- Mixed-layer CIN
- -10 J/kg
- Mixed-layer LCL
- 961 m above ground
- 0-6 km bulk shear
- 47 kt
- 0-1 km storm-relative helicity
- 326 m²/s²
- 0-3 km storm-relative helicity
- 478 m²/s²
- Significant tornado parameter
- 0.6
- Supercell composite
- 3.3
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 14, 5:32 PM EDT, 3 hours 47 minutes earlier.
Area forecast discussion, Apr 14, 5:32 PM EDT, 3 hours 47 minutes before
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</html>Hazardous weather outlook, Apr 14, 5:22 PM EDT, 3 hours 57 minutes before
Hazardous Weather Outlook National Weather Service Mount Holly NJ 522 PM EDT Sun Apr 14 2019 NJZ001-007-PAZ054-055-060>062-152130- Sussex-Warren-Carbon-Monroe-Berks-Lehigh-Northampton- 522 PM EDT Sun Apr 14 2019 ...FLASH FLOOD WATCH IN EFFECT THROUGH LATE TONIGHT... This Hazardous Weather Outlook is for northern New Jersey, east central Pennsylvania and northeast Pennsylvania. .DAY ONE...Tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flash Flood Watch. Showers and thunderstorms will move across the area later tonight into early Monday morning. The main threat will be damaging winds. An isolated tornado cannot be ruled out. .DAYS TWO THROUGH SEVEN...Monday through Saturday. There is a low probability for widespread hazardous weather. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. DEZ001>004-MDZ008-012-015-019-020-NJZ008>010-012>027-PAZ070-071- 101>106-152130- New Castle-Kent-Inland Sussex-Delaware Beaches-Cecil-Kent MD- Queen Annes-Talbot-Caroline-Morris-Hunterdon-Somerset-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-Delaware-Philadelphia-Western Chester- Eastern Chester-Western Montgomery-Eastern Montgomery-Upper Bucks- Lower Bucks- 522 PM EDT Sun Apr 14 2019 This Hazardous Weather Outlook is for central Delaware, northern Delaware, southern Delaware, northeast Maryland, central New Jersey, northern New Jersey, northwest New Jersey, southern New Jersey and southeast Pennsylvania. .DAY ONE...Tonight. Showers and thunderstorms will move across the area later tonight into early Monday morning. The main threat will be damaging winds and heavy rainfall which could lead to areas of urban and poor drainage flooding. An isolated tornado cannot be ruled out. .DAYS TWO THROUGH SEVEN...Monday through Saturday. There is a low probability for widespread hazardous weather. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. ANZ430-431-450>455-152130- Delaware Bay waters north of East Point NJ to Slaughter Beach DE- 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- Coastal waters from Cape Henlopen to Fenwick Island DE out 20 nm- 522 PM EDT Sun Apr 14 2019 ...GALE WARNING IN EFFECT FROM 6 AM MONDAY TO 6 AM EDT TUESDAY... This Hazardous Weather Outlook is for Atlantic coastal waters and Delaware Bay Waters. .DAY ONE...Tonight. Thunderstorms late tonight into early Monday morning may produce wind gusts above 34 kt. .DAYS TWO THROUGH SEVEN...Monday through Saturday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Gale Warning. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures.
In the hours before
Special weather statement, Apr 14, 7:32 PM EDT, 1 hour 47 minutes before
Special Weather Statement National Weather Service Mount Holly NJ 732 PM EDT Sun Apr 14 2019 PAZ060-150245- Berks- Including the city of Reading 732 PM EDT Sun Apr 14 2019 ...STRONG THUNDERSTORMS MAY AFFECT BERKS COUNTY BETWEEN 8 AND 10 PM EDT... At 730 PM EDT...National Weather Service Doppler radar indicated a cluster of thunderstorms over northeastern York County and western Lancaster County moving northeast at around 35 MPH. Some of these thunderstorms could be strong as they move into Berks County later this evening, with wind gusts up to 50 MPH possible. PRECAUTIONARY/PREPAREDNESS ACTIONS... These storms could intensify under the right conditions, so be certain to monitor local radio stations and available television stations for additional information and possible warnings from the National Weather Service.
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 15, 12:31 AM EDT | Marine Dense Fog Advisory | PHI | 5 hr | |
| Apr 15, 2:34 AM EDT | Special Weather Statement | PHI | Warren | 41 min |
| Apr 15, 2:46 AM EDT | Severe Thunderstorm Warning | PHI | Gloucester, Salem | 44 min |
| Apr 15, 2:47 AM EDT | Special Marine Warning | PHI | 58 min | |
| Apr 15, 3:00 AM EDT | Areal Flood Advisory | PHI | Sussex, Warren | 4 hr |
| Apr 15, 3:03 AM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Warren | 20 min |
| Apr 15, 3:07 AM EDT | Severe Thunderstorm Warning | PHI | Camden, Cumberland, Gloucester, Salem | 38 min |
| Apr 15, 3:08 AM EDT | Special Marine Warning | PHI | 67 min | |
| Apr 15, 3:11 AM EDT | Special Weather Statement | PHI | Hunterdon, Morris, Sussex, Warren | 49 min |
| Apr 15, 3:19 AM EDT | Tornado Warning | PHI | Burlington, Camden, Gloucester, Salem | 26 min |
| Apr 15, 3:19 AM EDT | Wind Advisory | PHI | Atlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 10 more | 18 hr |
| Apr 15, 3:27 AM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Mercer, Morris, Somerset | 32 min |
| Apr 15, 3:39 AM EDT | Severe Thunderstorm Warning | PHI | Burlington, Camden, Gloucester, Mercer, Middlesex, Monmouth and 2 more | 37 min |
| Apr 15, 3:41 AM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 2 more | 64 min |
| Apr 15, 3:42 AM EDT | Special Marine Warning | PHI | 63 min | |
| Apr 15, 3:57 AM EDT | Severe Thunderstorm Warning | PHI | Middlesex, Morris, Somerset | 13 min |
| Apr 15, 3:59 AM EDT | Areal Flood Advisory | PHI | Atlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 7 more | 4 hr |
| Apr 15, 4:16 AM EDT | Special Marine Warning | PHI | 59 min | |
| Apr 15, 4:40 AM EDT | Special Marine Warning | PHI | 65 min | |
| Apr 15, 4:47 AM EDT | Special Weather Statement | PHI | Atlantic | 28 min |
| Apr 15, 5:07 AM EDT | Special Marine Warning | PHI | 53 min | |
| Apr 15, 5:30 AM EDT | Coastal Flood Statement | PHI | Ocean | 7 hr |
| Apr 15, 6:59 AM EDT | Areal Flood Warning | PHI | Hunterdon | 4 hr |
| Apr 15, 12:03 AM EDT | Special Weather Statement | PHI | Monroe | 27 min |
| Apr 15, 1:10 AM EDT | Special Weather Statement | PHI | Schuylkill | 50 min |
| Apr 15, 1:26 AM EDT | Areal Flood Advisory | PHI | Carbon, Monroe | 4 hr |
| Apr 15, 1:28 AM EDT | Severe Thunderstorm Warning | PHI | Carbon, Monroe | 47 min |
| Apr 15, 1:43 AM EDT | Areal Flood Advisory | PHI | Berks | 4 hr |
| Apr 15, 1:58 AM EDT | Special Weather Statement | PHI | Berks, Carbon, Monroe | 47 min |
| Apr 15, 2:21 AM EDT | Areal Flood Advisory | PHI | Lehigh, Northampton | 4 hr |
| Apr 15, 2:28 AM EDT | Special Weather Statement | PHI | Chester | 32 min |
| Apr 15, 3:21 AM EDT | Tornado Warning | PHI | Kent | 24 min |
| Apr 15, 3:28 AM EDT | Severe Thunderstorm Warning | PHI | Sussex | 47 min |
| Apr 15, 3:31 AM EDT | Tornado Warning | PHI | Sussex | 29 min |
| Apr 15, 3:36 AM EDT | Tornado Warning | PHI | Kent, Sussex | 24 min |
| Apr 15, 4:19 AM EDT | Special Weather Statement | PHI | Sussex | 26 min |
Nearby
Areal Flood Advisories in Pennsylvania, 2019Every areal flood advisory in 2019
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.