Current Watches, Warnings and Advisories for Chester (PAC029) Pennsylvania Issued by the National Weather Service

Severe Thunderstorm Warning Severe Thunderstorm Warning - Chester County (Pennsylvania)


Updated:   Thu 20-Jun-19 02:59pm EDT

Effective: Thu 20-Jun-19 02:59pm EDT

Expires:   Thu 20-Jun-19 03:30pm EDT

Severity:  Severe

Urgency:   Immediate

Certainty: Observed

Status:   Actual

Type:     Alert

Category: Met


Areas affected:

Chester; Delaware; Montgomery; Philadelphia

Instructions:

For your protection move to an interior room on the lowest floor of a building. Torrential rainfall is occurring with these storms, and may lead to flash flooding. Do not drive your vehicle through flooded roadways.

Message summary:

...a severe thunderstorm warning remains in effect until 330 pm edt for northern new castle...northwestern salem...northwestern gloucester...southeastern montgomery...southeastern chester...western philadelphia and delaware counties...
At 258 pm edt, severe thunderstorms were located along a line extending from bryn mawr to talleyville, moving east at 30 mph. Hazard...60 mph wind gusts and penny size hail. Source...radar indicated. Impact...damage to roofs, siding, trees, and power lines is possible. Locations impacted include...
Philadelphia, wilmington, newark, west chester, norristown, chester, west norriton, east norriton, pennsville, yeadon, westtown, carneys point, conshohocken, hatboro, folcroft, ambler, swarthmore, elsmere, paulsboro and new castle. Hail...0.75in wind...60mph

...view the full/original NWS message

Severe Weather Statement Severe Weather Statement - Chester County (Pennsylvania)


Updated:   Thu 20-Jun-19 02:59pm EDT

Effective: Thu 20-Jun-19 02:59pm EDT

Expires:   Thu 20-Jun-19 03:30pm EDT

Severity:  Severe

Urgency:   Immediate

Certainty: Observed

Status:   Actual

Type:     Alert

Category: Met


Areas affected:

Chester; Delaware; Montgomery; Philadelphia

Instructions:

For your protection move to an interior room on the lowest floor of a building. Torrential rainfall is occurring with these storms, and may lead to flash flooding. Do not drive your vehicle through flooded roadways.

Message summary:

...a severe thunderstorm warning remains in effect until 330 pm edt for northern new castle...northwestern salem...northwestern gloucester...southeastern montgomery...southeastern chester...western philadelphia and delaware counties...
At 258 pm edt, severe thunderstorms were located along a line extending from bryn mawr to talleyville, moving east at 30 mph. Hazard...60 mph wind gusts and penny size hail. Source...radar indicated. Impact...damage to roofs, siding, trees, and power lines is possible. Locations impacted include...
Philadelphia, wilmington, newark, west chester, norristown, chester, west norriton, east norriton, pennsville, yeadon, westtown, carneys point, conshohocken, hatboro, folcroft, ambler, swarthmore, elsmere, paulsboro and new castle. Hail...0.75in wind...60mph

...view the full/original NWS message

Flash Flood Warning Flash Flood Warning - Chester County (Pennsylvania)


Updated:   Thu 20-Jun-19 02:48pm EDT

Effective: Thu 20-Jun-19 02:48pm EDT

Expires:   Thu 20-Jun-19 06:45pm EDT

Severity:  Severe

Urgency:   Immediate

Certainty: Likely

Status:   Actual

Type:     Alert

Category: Met


Areas affected:

Bucks; Chester; Delaware; Montgomery; Philadelphia

Instructions:

Turn around...don`t drown when encountering flooded roads. Most flood deaths occur in vehicles.

Message summary:

The national weather service in mount holly nj has issued a
* flash flood warning for...
Northern new castle county in northern delaware...
Northwestern camden county in southern new jersey...
Northwestern mercer county in central new jersey...
Northwestern cumberland county in southern new jersey...
Salem county in southern new jersey...
Southeastern hunterdon county in northwestern new jersey...
Northwestern gloucester county in southern new jersey...
West central burlington county in southern new jersey...
Southeastern montgomery county in southeastern pennsylvania...
Central bucks county in southeastern pennsylvania...
East central chester county in southeastern pennsylvania...
Philadelphia county in southeastern pennsylvania...
Delaware county in southeastern pennsylvania...
* until 645 pm edt.
* at 240 pm edt, doppler radar indicated thunderstorms were about to move over areas that received very heavy rainfall last night. Up to one and one-half inches can be expected with these thunderstorms. The rain will fall in a very short time and produce flash flooding across portions of the warned area. Creeks and streams remain high. Some are still flooding from last night`s rain. The thunderstorms expected over the next hour or two will add more runoff and exacerbate current flooding. Flash flooding is expected to begin shortly in the areas of heaviest rain.
* some locations that could experience flooding include...
Philadelphia, camden, wilmington, gloucester city, bensalem, ewing, norristown, chester, deptford, west deptford, lansdale, west norriton, east norriton, pennsville, bellmawr, yeadon, woodbury, pitman, doylestown and byram.

...view the full/original NWS message

Special Weather Statement Special Weather Statement - Chester County (Pennsylvania)


Updated:   Thu 20-Jun-19 02:26pm EDT

Effective: Thu 20-Jun-19 10:42am EDT

Expires:   Thu 20-Jun-19 04:00pm EDT

Severity:  Minor

Urgency:   Expected

Certainty: Observed

Status:   Actual

Type:     Alert

Category: Met


Areas affected:

Berks; Delaware; Eastern Chester; Eastern Montgomery; Lehigh; Lower Bucks; Northampton; Philadelphia; Upper Bucks; Western Chester; Western Montgomery

Message summary:

...a line of strong thunderstorms will affect new castle...
Northwestern kent...northern kent...cecil...northwestern camden...
Western mercer...southwestern somerset...northwestern cumberland...
Salem...hunterdon...gloucester...northwestern burlington...
Montgomery...southeastern berks...southeastern lehigh...bucks...
Chester...philadelphia...delaware and south central northampton counties...
At 225 pm edt, radar indicated strong thunderstorms were located along a line extending from near zionsville to marshallton to near newtown. Movement was east at 25 mph. Wind gusts up to 50 mph and half inch hail are possible with these storms. Locations impacted include...
Philadelphia, allentown, trenton, camden, wilmington, newark, bridgeton, middletown, west chester, elkton, somerville, gloucester city, calvert, bethlehem, bensalem, bridgewater, mount laurel, ewing, norristown and chester. Torrential rainfall is also occurring with these storms, and may cause localized flooding. These storms are headed into areas that have ongoing flooding from heavy rains overnight. Do not drive your vehicle through flooded roadways. Frequent cloud to ground lightning is occurring with this storm. Lightning can strike 10 miles away from a thunderstorm. Seek a safe shelter inside a building or vehicle.

...view the full/original NWS message

Flood Advisory Flood Advisory - Chester County (Pennsylvania)


Updated:   Thu 20-Jun-19 02:13pm EDT

Effective: Thu 20-Jun-19 02:48pm EDT

Expires:   Thu 20-Jun-19 06:45pm EDT

Severity:  Minor

Urgency:   Expected

Certainty: Likely

Status:   Actual

Type:     Alert

Category: Met


Areas affected:

Bucks; Chester; Delaware; Montgomery

Instructions:

A flood advisory means river or stream flows are elevated, or ponding of water in urban or other areas is occurring or is imminent.

Message summary:

The national weather service in mount holly nj has issued a
* flood advisory for...
Northwestern new castle county in northern delaware...
Cecil county in northeastern maryland...
Southeastern berks county in eastern pennsylvania...
Montgomery county in southeastern pennsylvania...
South central lehigh county in eastern pennsylvania...
West central bucks county in southeastern pennsylvania...
Chester county in southeastern pennsylvania...
Western delaware county in southeastern pennsylvania...
* until 615 pm edt.
* at 210 pm edt, doppler radar indicated heavy rain due to thunderstorms. This rain was occurring across areas that received heavy rainfall last night. Minor flooding, especially across low- lying and poor drainage areas, can be expected across portions of the advisory area.
* some locations that could experience flooding include...
Wilmington, newark, west chester, elkton, calvert, norristown, pottstown, phoenixville, lansdale, west norriton, east norriton, coatesville, westtown, quakertown, perkasie, downingtown, souderton, bedminster, elsmere and kennett square.

...view the full/original NWS message

Flood Warning Flood Warning - Chester County (Pennsylvania)


Updated:   Thu 20-Jun-19 10:54am EDT

Effective: Thu 20-Jun-19 10:54am EDT

Expires:   Thu 20-Jun-19 09:00pm EDT

Severity:  Moderate

Urgency:   Expected

Certainty: Likely

Status:   Actual

Type:     Alert

Category: Met


Areas affected:

Chester; Delaware

Instructions:

Safety message...do not attempt to drive through flooded areas. The water may be deeper than you think.

Message summary:

...the flood warning continues for the following rivers in pennsylvania...
Brandywine creek at chadds ford affecting chester and delaware counties the flood warning continues for the brandywine creek at chadds ford.
* at 10:30 am thursday the stage was 8.7 feet.
* flood stage is 9.0 feet.
* minor flooding is forecast.
* forecast...rise above flood stage and continue to rise to near 9.1 feet this afternoon. The river will fall below flood stage by late this afternoon.
* impact...at 10.0 feet...the intersections of creek road and route 926 near pocopson floods upstream of chadds ford.
* flood history...this crest compares to a previous crest of 9.0 feet on may 17 2018. && fld observed forecast location stg stg day time crest brandywine creek chadds ford 9.0 8.72 thu 10 am 9.1 thu 2 pm &&

...view the full/original NWS message

Flash Flood Watch Flash Flood Watch - Chester County (Pennsylvania)


Updated:   Thu 20-Jun-19 10:42am EDT

Effective: Thu 20-Jun-19 10:42am EDT

Expires:   Fri 21-Jun-19 01:00am EDT

Severity:  Severe

Urgency:   Expected

Certainty: Possible

Status:   Actual

Type:     Alert

Category: Met


Areas affected:

Berks; Carbon; Delaware; Eastern Chester; Eastern Montgomery; Lehigh; Lower Bucks; Monroe; Northampton; Philadelphia; Upper Bucks; Western Chester; Western Montgomery

Instructions:

A flash flood watch means that there is the potential for flash flooding which can be life-threatening. Heavy rain is expected to occur over a short period of time. Rapidly rising flood waters may quickly inundate roadways. Streams and creeks could leave their banks, flooding nearby properties. Please monitor the forecast, especially if you live in a location that is prone to flooding. Be prepared to take action if a flash flood warning is issued for your area.

Message summary:

...flash flood watch remains in effect through late tonight...
The flash flood watch continues for
* portions of northern delaware, northeast maryland, new jersey, and pennsylvania, including the following areas, in northern delaware, new castle. In northeast maryland, cecil and kent md. In new jersey, atlantic, atlantic coastal cape may, camden, cape may, coastal atlantic, coastal ocean, cumberland, eastern monmouth, gloucester, hunterdon, mercer, middlesex, morris, northwestern burlington, ocean, salem, somerset, southeastern burlington, sussex, warren, and western monmouth. In pennsylvania, berks, carbon, delaware, eastern chester, eastern montgomery, lehigh, lower bucks, monroe, northampton, philadelphia, upper bucks, western chester, and western montgomery.
* through late tonight
* another round of showers and thunderstorms will develop this afternoon and tonight and impact most of the area, including those areas that received heavy rainfall last night. Heavy rainfall will develop once again with as much as an additional 1 to 3 inches of rain in a short time. Flash flooding is likely once again, and it will not take much additional rainfall to result in flash flooding over already flooded areas.

...view the full/original NWS message

Icon Legend: Icon key
Source: NWS Watches, Warnings or Advisories for zone PAC029

Map showing how the NWS has divided Chester County into East and West sections for providing weather information.