Severe Thunderstorm Warning 59, NWS Philadelphia/Mount Holly

Issued

Jul 27, 2018, 6:03 PM EDT (22:03 UTC)

Expired

Jul 27, 2018, 6:45 PM EDT

In force

42 min

Issued by

NWS Philadelphia/Mount Holly

Area

Storm-based polygon

Hail

1.0 in

Wind

60.0 mph

Counties New Castle County, DE, Cecil County, MD, Chester County, PA

The Dover AFB radar (KDOX), 95 km from the middle of the area, began a volume at 22:03 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.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

396 
WUUS51 KPHI 272203
SVRPHI
DEC003-MDC015-PAC029-272245-
/O.NEW.KPHI.SV.W.0059.180727T2203Z-180727T2245Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
603 PM EDT FRI JUL 27 2018

The National Weather Service in Mount Holly NJ has issued a

* Severe Thunderstorm Warning for...
  West central New Castle County in northern Delaware...
  Cecil County in northeastern Maryland...
  Southwestern Chester County in southeastern Pennsylvania...

* Until 645 PM EDT.

* At 602 PM EDT, severe thunderstorms were located along a line
  extending from near Octoraro to Havre De Grace to near Cecilton,
  moving northeast at 25 mph.

  HAZARD...60 mph wind gusts and quarter size hail.

  SOURCE...Radar indicated.

  IMPACT...Minor damage to vehicles is possible. Wind damage to 
           roofs, siding, trees, and power lines is possible.

* Locations impacted include...
  Newark, Middletown, Elkton, Calvert, Oxford, North East, West
  Grove, Rising Sun, Charlestown, Cecilton, Warwick, Glen Roy, Zion,
  Blake, Barksdale, Glasgow, Bohemias Mills, West Nottingham,
  Octoraro and Brantwood.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

In addition to large hail and damaging winds, frequent cloud to
ground lightning is occurring with this storm. Move indoors
immediately. Remember, if you can hear thunder, you are close enough
to be struck by lightning.

Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 3972 7623 3973 7610 3976 7606 3986 7600
      3982 7578 3945 7564 3938 7578 3936 7590
      3938 7601 3940 7604 3943 7600 3946 7601
      3952 7598 3955 7603 3955 7608
TIME...MOT...LOC 2202Z 218DEG 20KT 3964 7624 3956 7610 3943 7590 

HAIL...1.00IN
WIND...60MPH
 
$$

CMS

168 
WWUS51 KPHI 272233
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
633 PM EDT FRI JUL 27 2018

DEC003-MDC015-PAC029-272245-
/O.CON.KPHI.SV.W.0059.000000T0000Z-180727T2245Z/
New Castle DE-Cecil MD-Chester PA-
633 PM EDT FRI JUL 27 2018

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 645 PM EDT
FOR WEST CENTRAL NEW CASTLE...CECIL AND SOUTHWESTERN CHESTER
COUNTIES...

At 633 PM EDT, severe thunderstorms were located along a line
extending from West Nottingham to North East to Middletown, moving
northeast at 20 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Damage to roofs, siding, trees, and power lines is 
         possible.

Locations impacted include...
Newark, Middletown, Elkton, Calvert, Oxford, North East, West Grove,
Rising Sun, Charlestown, Cecilton, Warwick, Glen Roy, Zion, Blake,
Barksdale, Glasgow, Bohemias Mills, West Nottingham, Octoraro and
Brantwood.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

LAT...LON 3972 7623 3973 7610 3976 7606 3986 7600
      3982 7578 3945 7564 3938 7578 3936 7590
      3938 7601 3940 7604 3943 7600 3946 7601
      3952 7598 3955 7603 3955 7608
TIME...MOT...LOC 2233Z 235DEG 18KT 3967 7606 3959 7592 3946 7572 

HAIL...<.75IN
WIND...60MPH
 
$$

CMS

441 
WWUS51 KPHI 272244
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
644 PM EDT FRI JUL 27 2018

DEC003-MDC015-PAC029-272254-
/O.EXP.KPHI.SV.W.0059.000000T0000Z-180727T2245Z/
New Castle DE-Cecil MD-Chester PA-
644 PM EDT FRI JUL 27 2018

...THE SEVERE THUNDERSTORM WARNING FOR WEST CENTRAL NEW CASTLE...
CECIL AND SOUTHWESTERN CHESTER COUNTIES WILL EXPIRE AT 645 PM EDT...
            
The storms which prompted the warning have weakened below severe
limits, and no longer pose an immediate threat to life or property.
Therefore, the warning will be allowed to expire.  However gusty
winds and heavy rain are still possible with these thunderstorms.

A severe thunderstorm watch remains in effect until 1000 PM EDT for
northern Delaware...northeastern Maryland...and southeastern
Pennsylvania.

LAT...LON 3972 7623 3973 7610 3976 7606 3986 7600
      3982 7578 3945 7564 3938 7578 3936 7590
      3938 7601 3940 7604 3943 7600 3946 7601
      3952 7598 3955 7603 3955 7608
TIME...MOT...LOC 2244Z 218DEG 20KT 3970 7603 3962 7589 3949 7569 

$$

CMS

Severe Thunderstorm Warnings in Pennsylvania, 2018Severe Thunderstorm Warnings in Maryland, 2018Severe Thunderstorm Warnings in Delaware, 2018Every severe thunderstorm warning in 2018

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.