Alert archive / Pennsylvania / Areal Flood Warnings in 2010
Areal Flood Warning 27, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this areal flood warning at May 3, 2010, 1:10 PM EDT for Berks County, Pennsylvania. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- May 3, 2010, 1:10 PM EDT (17:10 UTC)
- Expired
- May 3, 2010, 3:52 PM EDT
- In force
- 3 hr
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Flood severity
- None
County Berks County, PA
The radar
The Philadelphia radar (KDIX), 139 km from the middle of the area, began a volume at 17:10 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
Brookhaven, NY (KOKX), launched 12:00Z, 5.2 hours before the alert went out and 263 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
- 1 J/kg
- Mixed-layer CIN
- -211 J/kg
- Mixed-layer LCL
- 944 m above ground
- 0-6 km bulk shear
- 60 kt
- 0-1 km storm-relative helicity
- 82 m²/s²
- 0-3 km storm-relative helicity
- 132 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 warning 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 warning went out at May 3, 10:34 AM EDT, 2 hours 36 minutes earlier.
Area forecast discussion, May 3, 10:34 AM EDT, 2 hours 36 minutes before
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</html>Hazardous weather outlook, May 3, 4:37 AM EDT, 8 hours 33 minutes before
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Special weather statement, May 3, 7:44 AM EDT, 5 hours 26 minutes before
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</html>Special weather statement, May 3, 12:49 PM EDT, 21 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 1249 PM EDT MON MAY 3 2010 PAZ054-055-060>062-031845- BERKS PA-CARBON PA-LEHIGH PA-MONROE PA-NORTHAMPTON PA- 1249 PM EDT MON MAY 3 2010 ...STRONG THUNDERSTORMS WILL AFFECT BERKS...CARBON...LEHIGH...MONROE AND NORTHAMPTON COUNTIES... AT 1242 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A LINE OF SCATTERED SHOWERS AND THUNDERSTORMS EXTENDING FROM 20 MILES NORTHWEST OF LEHIGHTON TO 45 MILES WEST OF LANCASTER...MOVING EAST AT 30 MPH. THE SHOWERS AND THUNDERSTORMS WILL BE NEAR TRESCKOW...BEAVER MEADOWS AROUND 100 PM...WHITE HAVEN...EAST SIDE AROUND 115 PM...MECKESVILLE...ALBRIGHTSVILLE AROUND 130 PM...POCONO RACEWAY...LONG POND AROUND 145 PM...ARLINGTON HEIGHTS AND REEDERS AROUND 200 PM. WIND GUSTS TO AROUND 40 MPH ARE POSSIBLE WITH THE STRONGER SHOWERS AND THUNDERSTORMS. IF YOU SEE THREATENING WEATHER, PLEASE MOVE INDOORS QUICKLY. TFG
Local storm report, May 3, 12:55 PM EDT, 15 minutes before
PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1255 PM EDT MON MAY 03 2010
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1139 PM TSTM WND DMG 5 ESE LYONS 40.45N 75.67W
05/02/2010 BERKS PA COUNTY OFFICIAL
TREES DOWN ACROSS FAIRHILL DRIVE IN DISTRICT TOWNSHIP.
1150 PM TSTM WND DMG 2 ENE KUTZTOWN 40.53N 75.74W
05/02/2010 BERKS PA COUNTY OFFICIAL
TREE REPORTED DOWN ON POWER LINES IN MAXATAWNY TOWNSHIP.
1150 PM LIGHTNING 5 WNW AMITY GARDENS 40.31N 75.82W
05/02/2010 BERKS PA COUNTY OFFICIAL
BUILDING REPORTED STRUCK BY LIGHTNING IN EXETER TOWNSHIP.
1249 AM TSTM WND DMG SERGEANTSVILLE 40.45N 74.94W
05/03/2010 HUNTERDON NJ COUNTY OFFICIAL
TREES REPORTED DOWN ACROSS ROAD IN DELAWARE TOWNSHIP.
1252 AM TSTM WND DMG FLEMINGTON 40.51N 74.86W
05/03/2010 HUNTERDON NJ COUNTY OFFICIAL
TREES REPORTED DOWN ACROSS ROAD IN RARITAN TOWNSHIP.
&&
HEAVENERThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 3, 12:16 AM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Mercer, Morris, Somerset, Warren | 34 min |
| May 3, 12:30 AM EDT | Areal Flood Advisory | PHI | Hunterdon, Mercer, Morris, Somerset, Warren | 3 hr |
| May 3, 1:51 AM EDT | Areal Flood Advisory | PHI | Hunterdon, Mercer, Morris, Somerset, Sussex, Warren | 6 hr |
| May 3, 7:21 AM EDT | Areal Flood Advisory | PHI | Mercer, Middlesex, Monmouth, Morris, Ocean, Somerset | 3 hr |
| May 3, 3:58 PM EDT | Special Marine Warning | PHI | 92 min | |
| May 2, 11:26 PM EDT | Areal Flood Advisory | PHI | Berks, Chester, Lehigh, Montgomery, Northampton | 3 hr |
| May 2, 11:33 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Bucks, Lehigh, Montgomery, Northampton | 42 min |
| May 2, 11:47 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Bucks, Chester, Montgomery | 43 min |
Nearby
Areal Flood Warnings in Pennsylvania, 2010Every areal flood warning in 2010
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.