A cold front moved through the Great Lakes region on June 21, while Tropical Storm Claudette passed offshore of New Jersey and the Delmarva region. Ahead of the cold front, a hot, humid, and unstable air mass developed in the mid-Atlantic.
Every event with a place to put it. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS PHI wrote it up.
A cold front moved through the Great Lakes region on June 21, while Tropical Storm Claudette passed offshore of New Jersey and the Delmarva region. Ahead of the cold front, a hot, humid, and unstable air mass developed in the mid-Atlantic. A pre-frontal trough then served as a focus for widespread convection across the Northeast and mid-Atlantic during the afternoon and evening hours. With the strong instability and good forcing, much of the convection became strong to severe, taking the form of both linear and semi-discrete activity. Damaging winds were by far the primary hazard with these storms, with numerous reports of downed trees and power lines across the region. Convection weakened as it approached the coast owing to loss of daytime heating, weakening shear, and large scale subsidence on the northwest flank of Claudette.
The local office's own words before the first event, 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 the first event at Jun 21, 4:02 PM EST, 1 hour 24 minutes earlier.
Area Forecast Discussion
National Weather Service Mount Holly NJ
502 PM EDT Mon Jun 21 2021
.SYNOPSIS...
High pressure will weaken across the area tonight while low
pressure moves across the Great Lakes and southern Canada. A
cold front attached to the low will pass across the region Tuesday.
This will be followed by quiet weather as high pressure builds across
the Mid-Atlantic through the remainder of the work week. An area
of low pressure will cross the Great Lakes and drag a cold front
closer to our forecast area into the weekend.
&&
.NEAR TERM /THROUGH TUESDAY/...
Tonight...Severe thunderstorm watch #304 has been issued for the
entire CWA through midnight. Storms, many severe, are developing
across wrn/central PA and over wrn MD attm. This activity will
feed on the hot and humid airmass in place and keep the activity
rolling E across our area this evening. Prepare for severe
weather now, before it arrives. Damaging winds and hail are
possible with the storms.
After the tstms dissipate, mostly cloudy conditions with a few
showers overnight. Lows will drop into the upper 50s N/W and
upper 60s to low 70s for Delmarva and srn NJ.
Tuesday...The cold front will continue across NJ/Delmarva during
the day with more showers developing along it so likely or categorical
pops for the morning then decreasing for the afternoon. Highs
will be below normal reaching only in the low 60s N/W and
low/mid 70s S/E.
&&
.SHORT TERM /TUESDAY NIGHT THROUGH WEDNESDAY NIGHT/...
High pressure at the surface and weak subsidence aloft will result
in tranquil weather Tuesday night through Wednesday night. Diurnal
strato-cu deck will develop Wednesday afternoon but otherwise fair
through the period.
&&
.LONG TERM /THURSDAY THROUGH MONDAY/...
A weak wave of low pressure forms along the stalled trough to our
south across the Carolinas, which tries to play difficult and nudge
its way northward late Thursday into Friday. Meanwhile, a series of
shortwave troughs will gradually amplify a long wave trough across
the Midwest this weekend. A southwest flow between the Midwest
trough and western Atlantic ridge will result in periods of showers
across the region Saturday into Monday especially west of the
Delaware Valley.
&&
.AVIATION /21Z MONDAY THROUGH SATURDAY/...
The following discussion is for KPHL, KPNE, KTTN, KABE, KRDG, KILG,
KMIV, KACY and surrounding areas.
Tonight...IFR possible in tstms that are expected 23Z-02Z west
and 01Z-04Z east. Mostly VFR in between. Synoptic SW to S winds
10 to 15 knots then W winds developing late.
Tuesday...VFR early then MVFR ceilings expected with light to
moderate rain showers through much of the day. Ceilings and rain
should begin to clear by and especially after the 18-21Z
timeframe. Northwesterly winds 10-15 kts.
Outlook...
Wednesday...VFR with north-northwest winds from 10 to 15 knots. High
confidence.
Thursday...Mostly VFR with east-southeasterly winds from 5 to 10
knots and gusts to 15 knots. Moderate confidence.
Friday...Sub-VFR conditions possible in the morning, lifting to VFR
through the day. Southeasterly winds from 10 to 15 knots. Moderate
confidence.
Saturday...VFR with scattered MVFR conditions in showers. South wind
10 to 15 knots.
&&
.MARINE...
Tonight...Overall, sub-SCA conditions expected with wind gusts
just remaining below SCA levels and seas near mostly 4 ft.
Occasional stronger gusts with tstms may create localized SCA
conditions. Severe thunderstorms possible this evening then
showers overnight.
Tuesday...Mostly sub-SCA with frequent showers. Winds southwest
early, then shifting to Northwest by afternoon.
Outlook...
Wednesday and Thursday...Sub-advisory conditions with easterly winds
from 10 to 15 knots. Seas generally from 2 to 4 feet Wednesday and 2
to 3 feet Thursday.
Friday and Saturday...Sub-advisory conditions with south to
southeasterly winds from 10 to 15 knots and a few gusts possibly
approaching 20 knots in the afternoon. Seas ranging from 2 to 3
feet.
Rip Currents...
Increased southerly winds and waves of 4 to 5 feet, coupled with an
underlying long period swell (related to Claudette) will result in a
moderate risk for the formation of dangerous rip currents the
rest of today and Tuesday. Although the long period swell is
not expected to become the dominant swell, and winds should
shift to an off shore northwesterly direction Tuesday.
&&
.PHI WATCHES/WARNINGS/ADVISORIES...
PA...Heat Advisory until 8 PM EDT this evening for PAZ070-071-102-
104-106.
NJ...Heat Advisory until 8 PM EDT this evening for NJZ015-017>019.
DE...Heat Advisory until 8 PM EDT this evening for DEZ001.
MD...None.
MARINE...None.
&&
Synopsis...Davis/O'Hara
Near Term...O'Hara
Short Term...Franklin
Long Term...Franklin
Aviation...Franklin/O'Hara
Marine...Franklin/O'HaraHazardous Weather Outlook National Weather Service Mount Holly NJ 0602 PM EDT Mon Jun 21 2021 DEZ001-222202- New Castle- 0602 PM EDT Mon Jun 21 2021 This Hazardous Weather Outlook is for New Castle County in Delaware. .DAY ONE...Through tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Heat Advisory. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. DEZ002-222202- Kent- 0602 PM EDT Mon Jun 21 2021 This Hazardous Weather Outlook is for Kent County in Delaware. .DAY ONE...Through tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. DEZ003-222202- Inland Sussex- 0602 PM EDT Mon Jun 21 2021 This Hazardous Weather Outlook is for inland portions of Sussex County in Delaware. .DAY ONE...Through tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. DEZ004-222202- Delaware Beaches- 0602 PM EDT Mon Jun 21 2021 This Hazardous Weather Outlook is for the Atlantic coastal portions of Sussex County in Delaware. .DAY ONE...Through tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. PAZ054-222202- Carbon- 0602 PM EDT Mon Jun 21 2021 This Hazardous Weather Outlook is for Carbon County in Pennsylvania. .DAY ONE...Through tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. PAZ055-222202- Monroe- 0602 PM EDT Mon Jun 21 2021 This Hazardous Weather Outlook is for Monroe County in Pennsylvania. .DAY ONE...Through tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. PAZ060-222202- Berks- 0602 PM EDT Mon Jun 21 2021 This Hazardous Weather Outlook is for Berks County in Pennsylvania. .DAY ONE...Through tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. PAZ061-222202- Lehigh- 0602 PM EDT Mon Jun 21 2021 This Hazardous Weather Outlook is for Lehigh County in Pennsylvania. .DAY ONE...Through tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. PAZ062-222202- Northampton- 0602 PM EDT Mon Jun 21 2021 This Hazardous Weather Outlook is for Northampton County in Pennsylvania. .DAY ONE...Through tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. PAZ070-222202- Delaware- 0602 PM EDT Mon Jun 21 2021 This Hazardous Weather Outlook is for Delaware County in Pennsylvania. .DAY ONE...Through tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Heat Advisory. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. PAZ071-222202- Philadelphia- 0602 PM EDT Mon Jun 21 2021 This Hazardous Weather Outlook is for Philadelphia County in Pennsylvania. .DAY ONE...Through tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Heat Advisory. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. PAZ101-222202- Western Chester- 0602 PM EDT Mon Jun 21 2021 This Hazardous Weather Outlook is for western Chester County in Pennsylvania. .DAY ONE...Through tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. PAZ102-222202- Eastern Chester- 0602 PM EDT Mon Jun 21 2021 This Hazardous Weather Outlook is for eastern Chester County in Pennsylvania. .DAY ONE...Through tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Heat Advisory. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. PAZ103-222202- Western Montgomery- 0602 PM EDT Mon Jun 21 2021 This Hazardous Weather Outlook is for western Montgomery County in Pennsylvania. .DAY ONE...Through tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. PAZ104-222202- Eastern Montgomery- 0602 PM EDT Mon Jun 21 2021 This Hazardous Weather Outlook is for eastern Montgomery County in Pennsylvania. .DAY ONE...Through tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Heat Advisory. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. PAZ105-222202- Upper Bucks- 0602 PM EDT Mon Jun 21 2021 This Hazardous Weather Outlook is for upper Bucks County in Pennsylvania. .DAY ONE...Through tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. PAZ106-222202- Lower Bucks- 0602 PM EDT Mon Jun 21 2021 This Hazardous Weather Outlook is for lower Bucks County in Pennsylvania. .DAY ONE...Through tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Heat Advisory. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ001-222202- Sussex- 0602 PM EDT Mon Jun 21 2021 This Hazardous Weather Outlook is for Sussex County in New Jersey. .DAY ONE...Through tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ007-222202- Warren- 0602 PM EDT Mon Jun 21 2021 This Hazardous Weather Outlook is for Warren County in New Jersey. .DAY ONE...Through tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ008-222202- Morris- 0602 PM EDT Mon Jun 21 2021 This Hazardous Weather Outlook is for Morris County in New Jersey. .DAY ONE...Through tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ009-222202- Hunterdon- 0602 PM EDT Mon Jun 21 2021 This Hazardous Weather Outlook is for Hunterdon County in New Jersey. .DAY ONE...Through tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ010-222202- Somerset- 0602 PM EDT Mon Jun 21 2021 This Hazardous Weather Outlook is for Somerset County in New Jersey. .DAY ONE...Through tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ012-222202- Middlesex- 0602 PM EDT Mon Jun 21 2021 This Hazardous Weather Outlook is for Middlesex County in New Jersey. .DAY ONE...Through tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ013-222202- Western Monmouth- 0602 PM EDT Mon Jun 21 2021 This Hazardous Weather Outlook is for western Monmouth County in New Jersey. .DAY ONE...Through tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ014-222202- Eastern Monmouth- 0602 PM EDT Mon Jun 21 2021 This Hazardous Weather Outlook is for eastern Monmouth County in New Jersey. .DAY ONE...Through tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ015-222202- Mercer- 0602 PM EDT Mon Jun 21 2021 This Hazardous Weather Outlook is for Mercer County in New Jersey. .DAY ONE...Through tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Heat Advisory. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ016-222202- Salem- 0602 PM EDT Mon Jun 21 2021 This Hazardous Weather Outlook is for Salem County in New Jersey. .DAY ONE...Through tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ017-222202- Gloucester- 0602 PM EDT Mon Jun 21 2021 This Hazardous Weather Outlook is for Gloucester County in New Jersey. .DAY ONE...Through tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Heat Advisory. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ018-222202- Camden- 0602 PM EDT Mon Jun 21 2021 This Hazardous Weather Outlook is for Camden County in New Jersey. .DAY ONE...Through tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Heat Advisory. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ019-222202- Northwestern Burlington- 0602 PM EDT Mon Jun 21 2021 This Hazardous Weather Outlook is for northwestern Burlington County in New Jersey. .DAY ONE...Through tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Heat Advisory. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ020-222202- Ocean- 0602 PM EDT Mon Jun 21 2021 This Hazardous Weather Outlook is for inland portions of Ocean County in New Jersey. .DAY ONE...Through tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ021-222202- Cumberland- 0602 PM EDT Mon Jun 21 2021 This Hazardous Weather Outlook is for Cumberland County in New Jersey. .DAY ONE...Through tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ022-222202- Atlantic- 0602 PM EDT Mon Jun 21 2021 This Hazardous Weather Outlook is for inland portions of Atlantic County in New Jersey. .DAY ONE...Through tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ023-222202- Cape May- 0602 PM EDT Mon Jun 21 2021 This Hazardous Weather Outlook is for Cape May County excluding the Atlantic coast in New Jersey. .DAY ONE...Through tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ024-222202- Atlantic Coastal Cape May- 0602 PM EDT Mon Jun 21 2021 This Hazardous Weather Outlook is for the Atlantic coastal portions of Cape May County in New Jersey. .DAY ONE...Through tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ025-222202- Coastal Atlantic- 0602 PM EDT Mon Jun 21 2021 This Hazardous Weather Outlook is for coastal portions of Atlantic County in New Jersey. .DAY ONE...Through tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ026-222202- Coastal Ocean- 0602 PM EDT Mon Jun 21 2021 This Hazardous Weather Outlook is for coastal portions of Ocean County in New Jersey. .DAY ONE...Through tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ027-222202- Southeastern Burlington- 0602 PM EDT Mon Jun 21 2021 This Hazardous Weather Outlook is for southeastern Burlington County in New Jersey. .DAY ONE...Through tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. MDZ012-222202- Kent MD- 0602 PM EDT Mon Jun 21 2021 This Hazardous Weather Outlook is for Kent County in Maryland. .DAY ONE...Through tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. MDZ015-222202- Queen Annes- 0602 PM EDT Mon Jun 21 2021 This Hazardous Weather Outlook is for Queen Annes County in Maryland. .DAY ONE...Through tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. MDZ019-222202- Talbot- 0602 PM EDT Mon Jun 21 2021 This Hazardous Weather Outlook is for Talbot County in Maryland. .DAY ONE...Through tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. MDZ020-222202- Caroline- 0602 PM EDT Mon Jun 21 2021 This Hazardous Weather Outlook is for Caroline County in Maryland. .DAY ONE...Through tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. ANZ430-222202- Delaware Bay waters north of East Point NJ to Slaughter Beach DE- 0602 PM EDT Mon Jun 21 2021 This Hazardous Weather Outlook is for upper Delaware Bay. .DAY ONE...Through tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. ANZ431-222202- Delaware Bay waters south of East Point NJ to Slaughter Beach DE- 0602 PM EDT Mon Jun 21 2021 This Hazardous Weather Outlook is for lower Delaware Bay. .DAY ONE...Through tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. ANZ450-222202- Coastal waters from Sandy Hook to Manasquan Inlet NJ out 20 nm- 0602 PM EDT Mon Jun 21 2021 This Hazardous Weather Outlook is for the Atlantic coastal waters adjacent to Monmouth County out 20 nm. .DAY ONE...Through tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. ANZ451-222202- Coastal waters from Manasquan Inlet to Little Egg Inlet NJ out 20 nm- 0602 PM EDT Mon Jun 21 2021 This Hazardous Weather Outlook is for the Atlantic coastal waters adjacent to Ocean County out 20 nm. .DAY ONE...Through tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. ANZ452-222202- Coastal waters from Little Egg Inlet to Great Egg Inlet NJ out 20 nm- 0602 PM EDT Mon Jun 21 2021 This Hazardous Weather Outlook is for the Atlantic coastal waters adjacent to Atlantic County out 20 nm. .DAY ONE...Through tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. ANZ453-222202- Coastal waters from Great Egg Inlet to Cape May NJ out 20 nm- 0602 PM EDT Mon Jun 21 2021 This Hazardous Weather Outlook is for the Atlantic coastal waters adjacent to Cape May County out 20 nm. .DAY ONE...Through tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. ANZ454-222202- Coastal waters from Cape May NJ to Cape Henlopen DE out 20 nm- 0602 PM EDT Mon Jun 21 2021 This Hazardous Weather Outlook is for the Atlantic coastal waters adjacent to the mouth of Delaware Bay out 20 nm. .DAY ONE...Through tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. ANZ455-222202- Coastal waters from Cape Henlopen to Fenwick Island DE out 20 nm- 0602 PM EDT Mon Jun 21 2021 This Hazardous Weather Outlook is for the Atlantic coastal waters adjacent to Sussex County out 20 nm. .DAY ONE...Through tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures.
The Philadelphia radar (KDIX), 150 km away, was scanning. The volume nearest the first event began at 22:24 UTC.
46 thunderstorm wind. Local standard time, as filed.
Trees and wires were downed near Hawk Mountain Rd. Time estimated from radar.
A tree was downed on Limestone Rd. Time estimated from radar.
A tree and wires were downed. Time estimated from radar.
Several reports of downed power lines in the area. Time estimated from radar.
A tree and wires were downed. Time estimated from radar.
A few reports of trees and wires down in New Garden Twp. Time estimated from radar.
A tree was downed on Newark Rd. Time estimated from radar.
A tree was downed on Boot Rd. Time estimated from radar.
Trees were downed on Creek Rd. Time estimated from radar.
A tree, wires, and a power pole were downed on a residence near Forge Ln. Time estimated from radar.
Multiple reports of downed trees and wires in East Brandywine Twp. Time estimated from radar.
Outflow winds downed trees and wires near Hill Rd. Time estimated from radar.
Tree limbs were down on Edge Ln. Time estimated from radar.
Trees and wires were downed near Kegerise Dr. Time estimated from radar.
A tree was downed on Mill Ln. Time estimated from radar.
A tree and wires were downed. Time estimated from radar.
A tree was downed on Goshen Rd. Time estimated from radar.
A tree was downed on Valley Rd. Time estimated from radar.
Trees and wires were downed near Blue Rocks Rd. Time estimated from radar.
Wires were reported down. Time estimated from radar.
A tree and wires were downed. Time estimated from radar.
A tree and wires were downed on Main St in Jim Thorpe. Time estimated from radar.
A tree and wires were downed on Sparrow Ln. Time estimated from radar.
A tree and wires were reported down. Time estimated from radar.
A tree was downed into wires near Lentz Trail and Flagstaff Rd. Time estimated from radar.
Trees and wires were downed in the Pocono Mountain Lake Estates area. Time estimated from radar.
A tree and wires were downed on Broadway. Time estimated from radar.
Trees and wires were downed near Alley F and Park Ln. Time estimated from radar.
Trees and wires were downed near Rimrock Rd. Time estimated from radar.
A few reports of downed wires were received from in and near Allentown. Time estimated from radar.
Trees and wires were downed near Grant St. Time estimated from radar.
A few trees were reported down in the Bella Vista area of Philadelphia. Time estimated from radar.
Power lines were downed near Neffs Laurys Rd. Time estimated from radar.
Trees and wires were downed near Locust Ridge Rd. Time estimated from radar.
A tree and wires were reported down. Time estimated from radar.
Trees and wires were downed near Hallet Rd. Time estimated from radar.
Power lines were downed near Derhammer Rd. Time estimated from radar.
Trees and wires were downed near Mountain Rd. Time estimated from radar.
Trees and wires were downed near Toll Rd. Time estimated from radar.
Trees and wires were downed near Route 447. Time estimated from radar.
Trees and wires were downed near Wiltshire Rd. Time estimated from radar.
Numerous reports of downed trees and wires were received from the area of Bangor and Washington Twp. One residential property in particular on Washington Blvd suffered numerous downed trees and some property damage. Analysis of damage photos and radar data suggests a microburst likely occurred in the area. Winds of up to 80 mph are estimated. Time estimated from radar.
Wires were reported down along River Rd. Time estimated from radar.
Several reports of downed trees and wires in the Richmond area. Time estimated from radar.
Power lines were downed near Deer Run Rd. Time estimated from radar.
A tree was downed into wires near the intersection of Miller Rd and Richmond Rd. Time estimated from radar.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Pennsylvania in 2021Every state in 2021This day in weather historyWarnings in Pennsylvania, June 2021
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 956572, 956587, 956553, 956571, 956556, 956554, 956583, 956584, 956588, 956590, 956555, 956576, 956582, 956575, 956589, 956557, 956585, 956586, 956574, 956545, 956558, 956559, 956560, 956561, 956570, 956579, 956547, 956577, 956573, 956563, 956565, 956568, 956569, 956564, 956562, 956566, 956552, 956581, 956567, 956578, and more.