Willow Grove, PA
6:14 PM EDT on August 18, 2017 (GMT -0400)
Willow Grove Weather Center
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Elev 440 ft 40.14 °N, 75.11 °W | Updated 4 minutes ago
Thunderstorm
74.9
°F
Feels Like
74
°F
N
0.0
Wind Variable
Wind from WSW
Gusts 6.0 mph
Gusts 6.0 mph
Today
High -- | Low -- °F
--% Chance of Precip.
| Pressure | 29.78 in |
| Visibility | 10.0 miles |
| Clouds |
Few
3000
ft
|
| Heat Index | 74 °F |
| Dew Point | 71 °F |
| Humidity | 88% |
| Rainfall | 0.40 in |
| Snow Depth | Not available. |
METAR KPNE 182154Z 20003KT 10SM TS FEW030 31/24 A2978 RMK AO2 LTG DSNT SW-N TSB53 SLP083 T03110244 |
|
| Pressure | 29.78 in |
| Visibility | 10.0 miles |
| Clouds |
Few
3000
ft
|
| Heat Index | 74 °F |
| Dew Point | 71 °F |
| Humidity | 88% |
| Rainfall | 0.40 in |
| Snow Depth | Not available. |
METAR KPNE 182154Z 20003KT 10SM TS FEW030 31/24 A2978 RMK AO2 LTG DSNT SW-N TSB53 SLP083 T03110244 |
|
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Almanac
History
Astronomy
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Today's Extremes
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Community
Category 6
Welcome to Category 6. This is the collective home for Weather Underground's featured writeups by Dr. Jeff Masters (right), Bob Henson (left), Chris Burt, and other regular contributors.
Nearby
Air Quality
| Air Quality | AQ Index | Pollutant | |
|---|---|---|---|
| Not available. | |||
Snow Depth
| Station | Depth | Elevation |
|---|
Earthquake Activity
| City | Distance | Mag. | Time & Date |
|---|
Minimum magnitude displayed is 2.5.
Coastal Water Temperatures
| Place | Temperature |
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Stations
Nearby Weather Stations
Watches & Warnings
Severe Thunderstorm Warning
Issued:
5:54 PM EDT
Aug.
18,
2017
–
National Weather Service
The National Weather Service in Mount Holly NJ has issued a
* Severe Thunderstorm Warning for...
Mercer County in central New Jersey...
northwestern Burlington County in southern New Jersey...
southwestern Monmouth County in central New Jersey...
southern Middlesex County in northern New Jersey...
southeastern Montgomery County in southeastern Pennsylvania...
southeastern Bucks County in southeastern Pennsylvania...
northern Philadelphia County in southeastern Pennsylvania...
* until 700 PM EDT
* at 554 PM EDT, severe thunderstorms were located along a line
extending from near New Hope to Narberth, moving east at 35 mph.
Hazard... 60 mph wind gusts and penny size hail.
Source... radar indicated.
Impact... expect damage to trees and power lines.
* Locations impacted include...
Philadelphia, Trenton, Old Bridge, Bensalem, East Brunswick, South
Brunswick, Sayreville, North Brunswick, Ewing, Princeton, Florence,
Burlington, Bristol, Riverside, Hatboro, Jamesburg, Hightstown,
Jenkintown, Narberth and Bordentown.
Precautionary/preparedness actions...
To report severe weather, contact your nearest law enforcement
agency. They will send your report to the National Weather Service
office in Mount Holly NJ.
Lat... Lon 4011 7451 3998 7528 4002 7533 4033 7505
4035 7486 4037 7486 4040 7474 4037 7472
4039 7463 4037 7461 4042 7458 4046 7450
4051 7426
time... Mot... loc 2154z 252deg 32kt 4031 7502 4003 7525
Hail... 0.75in
wind... 60mph
Sfj
Severe Thunderstorm Watch
Issued:
6:03 PM EDT
Aug.
18,
2017
–
National Weather Service
Severe Thunderstorm Watch 455 remains in effect until 900 PM EDT
PA
. Pennsylvania counties included are
Adams Berks Bucks
Carbon Chester Dauphin
Delaware Lackawanna Lancaster
Lebanon Lehigh Luzerne
Monroe Montgomery Northampton
Philadelphia Pike Schuylkill
Wayne Wyoming York
Areal Flood Advisory, Flash Flood Watch
Issued:
5:20 PM EDT
Aug.
18,
2017
–
National Weather Service
The National Weather Service in Mount Holly NJ has issued a
* flood advisory for...
northern New Castle County in northern Delaware...
Salem County in southern New Jersey...
Camden County in southern New Jersey...
Mercer County in central New Jersey...
Gloucester County in southern New Jersey...
northwestern Burlington County in southern New Jersey...
southeastern Montgomery County in southeastern Pennsylvania...
southeastern Bucks County in southeastern Pennsylvania...
Philadelphia County in southeastern Pennsylvania...
Delaware County in southeastern Pennsylvania...
* until 815 PM EDT
* at 515 PM EDT... Doppler radar indicated heavy rain due to
thunderstorms moving eastward into the advisory area. This will
cause minor flooding of roadways and areas of poor drainage.
Rainfall amounts around one inch may occur in a short period of
time.
* Some locations that could experience flooding include...
Philadelphia, Trenton, Camden, Wilmington, Vineland, Newark,
Gloucester City, Cherry Hill, Bensalem, Evesham, Mount Laurel,
Ewing, Norristown, Chester, Willingboro, Deptford, Voorhees,
Medford, West Deptford and Glassboro.
Precautionary/preparedness actions...
Turn around... don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Lat... Lon 4018 7461 4007 7455 3972 7473 3951 7499
3956 7506 3946 7508 3956 7524 3945 7542
3939 7543 3951 7553 3953 7578 3954 7578
3972 7579 3984 7560 4007 7536 4007 7539
4036 7495 4034 7494 4042 7475 4027 7448
Iovino
457 PM EDT Fri Aug 18 2017
The National Weather Service in Mount Holly NJ has issued a
* flood advisory for...
Cecil County in northeastern Maryland...
Montgomery County in southeastern Pennsylvania...
Bucks County in southeastern Pennsylvania...
Chester County in southeastern Pennsylvania...
* until 800 PM EDT
* at 455 PM EDT... Doppler radar indicated heavy rain due to
thunderstorms moving into the advisory area from the west. This
will cause minor flooding in the advisory area. Up to one or two
inches of rain may fall in a short period of time.
* Some locations that could experience flooding include...
West Chester, Elkton, Calvert, Norristown, Pottstown, Phoenixville,
Lansdale, West Norriton, East Norriton, Coatesville, Westtown,
Quakertown, Perkasie, Doylestown, Downingtown, Souderton,
Bedminster, Ambler, Kennett Square and Collegeville.
Precautionary/preparedness actions...
Turn around... don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Lat... Lon 3976 7606 4011 7594 4025 7569 4045 7553
4042 7549 4061 7520 4057 7518 4057 7511
4042 7506 4040 7497 4034 7494 4005 7540
3984 7559 3977 7574 3972 7579 3953 7578
3955 7608 3972 7623
Iovino
319 PM EDT Fri Aug 18 2017
... Flash Flood Watch remains in effect until midnight EDT
tonight...
The Flash Flood Watch continues for
* portions of Delaware, northeast Maryland, New Jersey, and
Pennsylvania, including the following areas, in Delaware, Kent
and New Castle. In northeast Maryland, Caroline, Cecil, Kent
MD, Queen Annes, and Talbot. In New Jersey, Camden,
Gloucester, Hunterdon, Mercer, Middlesex, Morris, northwestern
Burlington, Salem, Somerset, Sussex, Warren, and western
Monmouth. In Pennsylvania, Berks, Delaware, eastern Chester,
eastern Montgomery, Lehigh, lower Bucks, Northampton,
Philadelphia, upper Bucks, western Chester, and western
Montgomery.
* Until midnight EDT tonight
* multiple rounds of showers and thunderstorms can be expected
through tonight. Torrential downpours with storms that develop
this evening could produce rainfall rates greater than 2 inches
per hour. While the entire area will not receive heavy rain,
isolated rainfall totals of 3 to 6 inches are possible where
storms track over the same locations.
* Torrential rain falling in a short period of time will result
in rapidly rising water levels along streams and creeks and in
areas of poor drainage. Significant roadway flooding is
possible in isolated areas.
Precautionary/preparedness actions...
A Flash Flood Watch means that conditions may develop that lead
to flash flooding. Flash flooding is a very dangerous situation.
You should monitor later forecasts and be prepared to take action
should flash flood warnings be issued.
Mps