A hot and humid air mass was in place over the mid-Atlantic on August 10. A lee side surface trough was present over central Pennsylvania.
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 hot and humid air mass was in place over the mid-Atlantic on August 10. A lee side surface trough was present over central Pennsylvania. This provided sufficient lift for thunderstorms to develop in the unstable air mass, and some organization into multi-cellular or linear clusters occurred. Despite limited shear, the strong instability allowed a number of storms to become strong to severe, producing damaging wind.
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 Aug 10, 2:58 PM EST, 1 hour 28 minutes earlier.
Area Forecast Discussion
National Weather Service Mount Holly NJ
358 PM EDT Tue Aug 10 2021
.SYNOPSIS...
Bermuda high pressure will continue to influence our weather
into Friday. A cold front approaching from the northwest is
forecast to arrive on Saturday. The boundary is expected to
stall to the south of our region for Sunday into the early part
of the new week as high pressure builds across New York and New
England.
&&
.NEAR TERM /THROUGH WEDNESDAY/...
The leftover clouds from this morning were a bit slow to erode
across the region today, but as of now, most areas have at least
partly sunny skies. Some lingering clouds across north NJ will
mix out thru 4 PM. A few tstms have developed just to the W of
our area with some SVRs being issued by State College. This
activity will continue eastward this evening and tap into the
hot and humid airmass across our area. We have, therefore, kept
in high chc/low likely pops for the nrn/wrn areas this evening.
The activity will probably decrease as it heads into
NJ/Delmarva, so lower pops there overnight. There is some
uncertainty with regards to how far east the activity will go
this evening. Very mild and humid overnight with patchy fog.
Light south to southwest winds after sunset.
Wednesday...Heat headlines remain in place. Sunny, hot and
humid with highs in the 90s most areas and upper 80s (only) at
the shore and NW higher areas. Mostly dry early then a few sct
showers/tstms for the afternoon. Slight chc pops for NJ shore
areas and ern DE with small chc pops for PA, north NJ and ern
shore areas of MD. Apparent temps in the 90s for shore areas and
NW hills and low 100s for most other areas.
&&
.SHORT TERM /WEDNESDAY NIGHT THROUGH FRIDAY/...
The Excessive Heat Warning and Heat Advisory for Wednesday
night and Thursday remain in effect.
The mid level wave associated with the convection in Missouri
and vicinity this afternoon should reach our region on Wednesday
night. Scattered to isolated showers and thunderstorms are
possible at that time. However, the activity may weaken a bit
with the loss of daylight.
Even though Thursday should be the peak of the heat and
humidity, a fairly strong cap is anticipated. As a result,
showers and thunderstorms are expected to be limited. We may see
some remnant convection approach and enter our northwestern
counties late in the day but is should weaken during the
nighttime hours.
High temperatures on Thursday will favor the 90s with heat
index values in excess of 100 at most locations.
Friday is anticipated to be almost as hot and humid as
Thursday. It seems likely that we will need to extend the
Excessive Heat Warning and the Heat Advisory for another day, as
we get closer in time.
It appears as though there will be a slightly better potential
for convection on Friday than on Thursday as the cap weakens a
little. The chance of precipitation seems better in the terrain
of eastern Pennsylvania and northern New Jersey than at points
to the southeast.
&&
.LONG TERM /FRIDAY NIGHT THROUGH TUESDAY/...
A cold front is forecast to approach from the northwest on
Saturday and it should pass through our region on Saturday
night. The excessive heat and humidity will begin to get knocked
back at that time. It should also present our best potential
for widespread showers and thunderstorms.
The frontal boundary will likely stall to our south across
southeastern Maryland, southern Virginia and the adjacent waters
for Sunday through Tuesday. Meanwhile, high pressure is
anticipated to build across New York and New England. The
pattern will maintain a chance of showers and thunderstorms
across parts of eastern Maryland, Delaware and far southern New
Jersey through the period. The potential for precipitation may
begin to lift slowly back to the north in a developing return
flow as we get into the new week.
Temperatures and humidity levels are expected to be on the
decrease, with highs settling into the 80s with lows mainly in
the 60s.
&&
.AVIATION /20Z TUESDAY THROUGH SUNDAY/...
The following discussion is for KPHL, KPNE, KTTN, KABE, KRDG,
KILG, KMIV, KACY and surrounding areas.
Rest of the afternoon...VFR then scattered showers and tstms
developing across the wrn areas (KRDG,KABE). The activity will
move slowly eastward into the evening. Lower CIGS/VSBYS
possible. Mostly S to SW winds 5 to 10 knots.
Tonight... Showers/tstms slowly diminish thru 02Z/03Z while
spreadings across NJ and nrn Delmarva. Slowly decreasing clouds
and patchy fog developing. Light SW or S winds.
Wednesday...VFR after patchy morning fog. Sct Cu mostly, few
showers possible late afternoon, but not in TAFS attm. SW winds
5 to 10 knots.
Outlook...
Thursday...Early morning low clouds and visibility restrictions
are possible, otherwise mainly VFR. Southwest around 10 knots.
Medium confidence.
Friday...Early morning low clouds and visibility restrictions
are possible, otherwise mainly VFR. A chance of afternoon and
evening showers and thunderstorms. Southwest around 10 knots.
Medium confidence.
Saturday...Early morning low clouds and visibility restrictions
are possible, otherwise mainly VFR. Afternoon and evening
showers and thunderstorms are likely. Southwest to west around
10 knots. Medium confidence.
Sunday...Early morning low clouds and visibility restrictions
are possible, otherwise mainly VFR. North to northeast wind 5 to
10 knots. Medium confidence.
&&
.MARINE...
Winds and seas will remain below SCA conditions although both
will increase this evening. Winds and seas along the nrn NJ
waters may approach SCA conditions with some gusts 20-25 knots
and seas 3 to 4 ft. Scattered showers and perhaps a tstm this
evening otherwise fair. sub-SCA and fair weather expected
Wednesday.
Outlook...
Thursday through Sunday...No marine headlines are anticipated.
Rip currents...
There is a low risk of rip currents through at least Wednesday.
&&
.PHI WATCHES/WARNINGS/ADVISORIES...
PA...Excessive Heat Warning from noon Wednesday to 8 PM EDT
Thursday for PAZ070-071-101>106.
Heat Advisory from noon Wednesday to 8 PM EDT Thursday for
PAZ060>062.
NJ...Excessive Heat Warning from noon Wednesday to 8 PM EDT
Thursday for NJZ008>010-012-013-015-017>020-027.
Heat Advisory from noon Wednesday to 8 PM EDT Thursday for
NJZ001-007-014-016-021-022-026.
DE...Excessive Heat Warning from noon Wednesday to 8 PM EDT
Thursday for DEZ001.
Heat Advisory from noon Wednesday to 8 PM EDT Thursday for
DEZ002-003.
MD...Heat Advisory from noon Wednesday to 8 PM EDT Thursday for
MDZ012-015-019-020.
MARINE...None.
&&
Synopsis...Iovino
Near Term...O'Hara
Short Term...Iovino
Long Term...Iovino
Aviation...Iovino/O'Hara
Marine...Iovino/O'HaraHazardous Weather Outlook National Weather Service Mount Holly NJ 0456 PM EDT Tue Aug 10 2021 DEZ001-112056- New Castle- 0456 PM EDT Tue Aug 10 2021 This Hazardous Weather Outlook is for New Castle County in Delaware. .DAY ONE...Through tonight. Hot conditions could result in heat exhaustion with prolonged exposure. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Hot conditions could result in heat exhaustion with prolonged exposure on Wednesday. Dangerously hot conditions could result in heat exhaustion or heat stroke with prolonged exposure on Thursday. Dangerously hot conditions could result in heat exhaustion or heat stroke with prolonged exposure on Friday. 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. DEZ002-112056- Kent- 0456 PM EDT Tue Aug 10 2021 This Hazardous Weather Outlook is for Kent County in Delaware. .DAY ONE...Through tonight. Minor coastal flooding is possible. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Hot conditions could result in heat exhaustion with prolonged exposure on Thursday. Hot conditions could result in heat exhaustion with prolonged exposure on Friday. 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. DEZ003-112056- Inland Sussex- 0456 PM EDT Tue Aug 10 2021 This Hazardous Weather Outlook is for inland portions of Sussex County in Delaware. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Hot conditions could result in heat exhaustion with prolonged exposure on Thursday. Hot conditions could result in heat exhaustion with prolonged exposure on Friday. 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. DEZ004-112056- Delaware Beaches- 0456 PM EDT Tue Aug 10 2021 This Hazardous Weather Outlook is for the Atlantic coastal portions of Sussex County in Delaware. .DAY ONE...Through tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. 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. PAZ054-112056- Carbon- 0456 PM EDT Tue Aug 10 2021 This Hazardous Weather Outlook is for Carbon County in Pennsylvania. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Hot conditions could result in heat exhaustion with prolonged exposure on Thursday. 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. PAZ055-112056- Monroe- 0456 PM EDT Tue Aug 10 2021 This Hazardous Weather Outlook is for Monroe County in Pennsylvania. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Hot conditions could result in heat exhaustion with prolonged exposure on Thursday. 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. PAZ060-112056- Berks- 0456 PM EDT Tue Aug 10 2021 This Hazardous Weather Outlook is for Berks County in Pennsylvania. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Hot conditions could result in heat exhaustion with prolonged exposure on Wednesday. Dangerously hot conditions could result in heat exhaustion or heat stroke with prolonged exposure on Thursday. Hot conditions could result in heat exhaustion with prolonged exposure on Friday. 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. PAZ061-112056- Lehigh- 0456 PM EDT Tue Aug 10 2021 This Hazardous Weather Outlook is for Lehigh County in Pennsylvania. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Hot conditions could result in heat exhaustion with prolonged exposure on Wednesday. Dangerously hot conditions could result in heat exhaustion or heat stroke with prolonged exposure on Thursday. Hot conditions could result in heat exhaustion with prolonged exposure on Friday. 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. PAZ062-112056- Northampton- 0456 PM EDT Tue Aug 10 2021 This Hazardous Weather Outlook is for Northampton County in Pennsylvania. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Hot conditions could result in heat exhaustion with prolonged exposure on Wednesday. Dangerously hot conditions could result in heat exhaustion or heat stroke with prolonged exposure on Thursday. Hot conditions could result in heat exhaustion with prolonged exposure on Friday. 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. PAZ070-112056- Delaware- 0456 PM EDT Tue Aug 10 2021 This Hazardous Weather Outlook is for Delaware County in Pennsylvania. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Hot conditions could result in heat exhaustion with prolonged exposure on Wednesday. Dangerously hot conditions could result in heat exhaustion or heat stroke with prolonged exposure on Thursday. Dangerously hot conditions could result in heat exhaustion or heat stroke with prolonged exposure on Friday. 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. PAZ071-112056- Philadelphia- 0456 PM EDT Tue Aug 10 2021 This Hazardous Weather Outlook is for Philadelphia County in Pennsylvania. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Dangerously hot conditions could result in heat exhaustion or heat stroke with prolonged exposure on Wednesday. Dangerously hot conditions could result in heat exhaustion or heat stroke with prolonged exposure on Thursday. Dangerously hot conditions could result in heat exhaustion or heat stroke with prolonged exposure on Friday. 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. PAZ101-112056- Western Chester- 0456 PM EDT Tue Aug 10 2021 This Hazardous Weather Outlook is for western Chester County in Pennsylvania. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Hot conditions could result in heat exhaustion with prolonged exposure on Wednesday. Dangerously hot conditions could result in heat exhaustion or heat stroke with prolonged exposure on Thursday. Dangerously hot conditions could result in heat exhaustion or heat stroke with prolonged exposure on Friday. 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. PAZ102-112056- Eastern Chester- 0456 PM EDT Tue Aug 10 2021 This Hazardous Weather Outlook is for eastern Chester County in Pennsylvania. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Hot conditions could result in heat exhaustion with prolonged exposure on Wednesday. Dangerously hot conditions could result in heat exhaustion or heat stroke with prolonged exposure on Thursday. Hot conditions could result in heat exhaustion with prolonged exposure on Friday. 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. PAZ103-112056- Western Montgomery- 0456 PM EDT Tue Aug 10 2021 This Hazardous Weather Outlook is for western Montgomery County in Pennsylvania. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Hot conditions could result in heat exhaustion with prolonged exposure on Wednesday. Dangerously hot conditions could result in heat exhaustion or heat stroke with prolonged exposure on Thursday. Dangerously hot conditions could result in heat exhaustion or heat stroke with prolonged exposure on Friday. 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. PAZ104-112056- Eastern Montgomery- 0456 PM EDT Tue Aug 10 2021 This Hazardous Weather Outlook is for eastern Montgomery County in Pennsylvania. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Dangerously hot conditions could result in heat exhaustion or heat stroke with prolonged exposure on Wednesday. Dangerously hot conditions could result in heat exhaustion or heat stroke with prolonged exposure on Thursday. Dangerously hot conditions could result in heat exhaustion or heat stroke with prolonged exposure on Friday. 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. PAZ105-112056- Upper Bucks- 0456 PM EDT Tue Aug 10 2021 This Hazardous Weather Outlook is for upper Bucks County in Pennsylvania. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Hot conditions could result in heat exhaustion with prolonged exposure on Wednesday. Dangerously hot conditions could result in heat exhaustion or heat stroke with prolonged exposure on Thursday. Hot conditions could result in heat exhaustion with prolonged exposure on Friday. 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. PAZ106-112056- Lower Bucks- 0456 PM EDT Tue Aug 10 2021 This Hazardous Weather Outlook is for lower Bucks County in Pennsylvania. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Dangerously hot conditions could result in heat exhaustion or heat stroke with prolonged exposure on Wednesday. Dangerously hot conditions could result in heat exhaustion or heat stroke with prolonged exposure on Thursday. Dangerously hot conditions could result in heat exhaustion or heat stroke with prolonged exposure on Friday. 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. NJZ001-112056- Sussex- 0456 PM EDT Tue Aug 10 2021 This Hazardous Weather Outlook is for Sussex County in New Jersey. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Hot conditions could result in heat exhaustion with prolonged exposure on Wednesday. Dangerously hot conditions could result in heat exhaustion or heat stroke with prolonged exposure on Thursday. Hot conditions could result in heat exhaustion with prolonged exposure on Friday. 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. NJZ007-112056- Warren- 0456 PM EDT Tue Aug 10 2021 This Hazardous Weather Outlook is for Warren County in New Jersey. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Hot conditions could result in heat exhaustion with prolonged exposure on Wednesday. Dangerously hot conditions could result in heat exhaustion or heat stroke with prolonged exposure on Thursday. Hot conditions could result in heat exhaustion with prolonged exposure on Friday. 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. NJZ008-112056- Morris- 0456 PM EDT Tue Aug 10 2021 This Hazardous Weather Outlook is for Morris County in New Jersey. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Hot conditions could result in heat exhaustion with prolonged exposure on Wednesday. Dangerously hot conditions could result in heat exhaustion or heat stroke with prolonged exposure on Thursday. Hot conditions could result in heat exhaustion with prolonged exposure on Friday. 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. NJZ009-112056- Hunterdon- 0456 PM EDT Tue Aug 10 2021 This Hazardous Weather Outlook is for Hunterdon County in New Jersey. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Dangerously hot conditions could result in heat exhaustion or heat stroke with prolonged exposure on Wednesday. Dangerously hot conditions could result in heat exhaustion or heat stroke with prolonged exposure on Thursday. Dangerously hot conditions could result in heat exhaustion or heat stroke with prolonged exposure on Friday. 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. NJZ010-112056- Somerset- 0456 PM EDT Tue Aug 10 2021 This Hazardous Weather Outlook is for Somerset County in New Jersey. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Dangerously hot conditions could result in heat exhaustion or heat stroke with prolonged exposure on Wednesday. Dangerously hot conditions could quickly result in heat exhaustion or heat stroke on Thursday. Dangerously hot conditions could result in heat exhaustion or heat stroke with prolonged exposure on Friday. 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. NJZ012-112056- Middlesex- 0456 PM EDT Tue Aug 10 2021 This Hazardous Weather Outlook is for Middlesex County in New Jersey. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Dangerously hot conditions could result in heat exhaustion or heat stroke with prolonged exposure on Wednesday. Dangerously hot conditions could result in heat exhaustion or heat stroke with prolonged exposure on Thursday. Dangerously hot conditions could result in heat exhaustion or heat stroke with prolonged exposure on Friday. 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. NJZ013-112056- Western Monmouth- 0456 PM EDT Tue Aug 10 2021 This Hazardous Weather Outlook is for western Monmouth County in New Jersey. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Dangerously hot conditions could result in heat exhaustion or heat stroke with prolonged exposure on Wednesday. Dangerously hot conditions could result in heat exhaustion or heat stroke with prolonged exposure on Thursday. Dangerously hot conditions could result in heat exhaustion or heat stroke with prolonged exposure on Friday. 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. NJZ014-112056- Eastern Monmouth- 0456 PM EDT Tue Aug 10 2021 This Hazardous Weather Outlook is for eastern Monmouth County in New Jersey. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Hot conditions could result in heat exhaustion with prolonged exposure on Wednesday. Dangerously hot conditions could result in heat exhaustion or heat stroke with prolonged exposure on Thursday. Hot conditions could result in heat exhaustion with prolonged exposure on Friday. 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. NJZ015-112056- Mercer- 0456 PM EDT Tue Aug 10 2021 This Hazardous Weather Outlook is for Mercer County in New Jersey. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Dangerously hot conditions could result in heat exhaustion or heat stroke with prolonged exposure on Wednesday. Dangerously hot conditions could result in heat exhaustion or heat stroke with prolonged exposure on Thursday. Dangerously hot conditions could result in heat exhaustion or heat stroke with prolonged exposure on Friday. 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. NJZ016-112056- Salem- 0456 PM EDT Tue Aug 10 2021 This Hazardous Weather Outlook is for Salem County in New Jersey. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Hot conditions could result in heat exhaustion with prolonged exposure on Wednesday. Hot conditions could result in heat exhaustion with prolonged exposure on Thursday. Hot conditions could result in heat exhaustion with prolonged exposure on Friday. 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. NJZ017-112056- Gloucester- 0456 PM EDT Tue Aug 10 2021 This Hazardous Weather Outlook is for Gloucester County in New Jersey. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Dangerously hot conditions could result in heat exhaustion or heat stroke with prolonged exposure on Wednesday. Dangerously hot conditions could result in heat exhaustion or heat stroke with prolonged exposure on Thursday. Dangerously hot conditions could result in heat exhaustion or heat stroke with prolonged exposure on Friday. 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. NJZ018-112056- Camden- 0456 PM EDT Tue Aug 10 2021 This Hazardous Weather Outlook is for Camden County in New Jersey. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Dangerously hot conditions could result in heat exhaustion or heat stroke with prolonged exposure on Wednesday. Dangerously hot conditions could result in heat exhaustion or heat stroke with prolonged exposure on Thursday. Dangerously hot conditions could result in heat exhaustion or heat stroke with prolonged exposure on Friday. 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. NJZ019-112056- Northwestern Burlington- 0456 PM EDT Tue Aug 10 2021 This Hazardous Weather Outlook is for northwestern Burlington County in New Jersey. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Dangerously hot conditions could result in heat exhaustion or heat stroke with prolonged exposure on Wednesday. Dangerously hot conditions could result in heat exhaustion or heat stroke with prolonged exposure on Thursday. Dangerously hot conditions could result in heat exhaustion or heat stroke with prolonged exposure on Friday. 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. NJZ020-112056- Ocean- 0456 PM EDT Tue Aug 10 2021 This Hazardous Weather Outlook is for inland portions of Ocean County in New Jersey. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Hot conditions could result in heat exhaustion with prolonged exposure on Wednesday. Dangerously hot conditions could result in heat exhaustion or heat stroke with prolonged exposure on Thursday. Hot conditions could result in heat exhaustion with prolonged exposure on Friday. 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. NJZ021-112056- Cumberland- 0456 PM EDT Tue Aug 10 2021 This Hazardous Weather Outlook is for Cumberland County in New Jersey. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Hot conditions could result in heat exhaustion with prolonged exposure on Thursday. Hot conditions could result in heat exhaustion with prolonged exposure on Friday. 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. NJZ022-112056- Atlantic- 0456 PM EDT Tue Aug 10 2021 This Hazardous Weather Outlook is for inland portions of Atlantic County in New Jersey. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Hot conditions could result in heat exhaustion with prolonged exposure on Thursday. Hot conditions could result in heat exhaustion with prolonged exposure on Friday. 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. NJZ023-112056- Cape May- 0456 PM EDT Tue Aug 10 2021 This Hazardous Weather Outlook is for Cape May County excluding the Atlantic coast in New Jersey. .DAY ONE...Through tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. 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. NJZ024-112056- Atlantic Coastal Cape May- 0456 PM EDT Tue Aug 10 2021 This Hazardous Weather Outlook is for the Atlantic coastal portions of Cape May County in New Jersey. .DAY ONE...Through tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. 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. NJZ025-112056- Coastal Atlantic- 0456 PM EDT Tue Aug 10 2021 This Hazardous Weather Outlook is for coastal portions of Atlantic County in New Jersey. .DAY ONE...Through tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. 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. NJZ026-112056- Coastal Ocean- 0456 PM EDT Tue Aug 10 2021 This Hazardous Weather Outlook is for coastal portions of Ocean County in New Jersey. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Hot conditions could result in heat exhaustion with prolonged exposure on Thursday. Hot conditions could result in heat exhaustion with prolonged exposure on Friday. 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. NJZ027-112056- Southeastern Burlington- 0456 PM EDT Tue Aug 10 2021 This Hazardous Weather Outlook is for southeastern Burlington County in New Jersey. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Hot conditions could result in heat exhaustion with prolonged exposure on Wednesday. Dangerously hot conditions could result in heat exhaustion or heat stroke with prolonged exposure on Thursday. Dangerously hot conditions could result in heat exhaustion or heat stroke with prolonged exposure on Friday. 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. MDZ012-112056- Kent MD- 0456 PM EDT Tue Aug 10 2021 This Hazardous Weather Outlook is for Kent County in Maryland. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Hot conditions could result in heat exhaustion with prolonged exposure on Wednesday. Hot conditions could result in heat exhaustion with prolonged exposure on Thursday. Hot conditions could result in heat exhaustion with prolonged exposure on Friday. 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. MDZ015-112056- Queen Annes- 0456 PM EDT Tue Aug 10 2021 This Hazardous Weather Outlook is for Queen Annes County in Maryland. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Hot conditions could result in heat exhaustion with prolonged exposure on Wednesday. Hot conditions could result in heat exhaustion with prolonged exposure on Thursday. Hot conditions could result in heat exhaustion with prolonged exposure on Friday. 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. MDZ019-112056- Talbot- 0456 PM EDT Tue Aug 10 2021 This Hazardous Weather Outlook is for Talbot County in Maryland. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Hot conditions could result in heat exhaustion with prolonged exposure on Wednesday. Hot conditions could result in heat exhaustion with prolonged exposure on Thursday. Hot conditions could result in heat exhaustion with prolonged exposure on Friday. 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. MDZ020-112056- Caroline- 0456 PM EDT Tue Aug 10 2021 This Hazardous Weather Outlook is for Caroline County in Maryland. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Hot conditions could result in heat exhaustion with prolonged exposure on Wednesday. Hot conditions could result in heat exhaustion with prolonged exposure on Thursday. Hot conditions could result in heat exhaustion with prolonged exposure on Friday. 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. ANZ430-112056- Delaware Bay waters north of East Point NJ to Slaughter Beach DE- 0456 PM EDT Tue Aug 10 2021 This Hazardous Weather Outlook is for upper Delaware Bay. .DAY ONE...Through tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. 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. ANZ431-112056- Delaware Bay waters south of East Point NJ to Slaughter Beach DE- 0456 PM EDT Tue Aug 10 2021 This Hazardous Weather Outlook is for lower Delaware Bay. .DAY ONE...Through tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. 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. ANZ450-112056- Coastal waters from Sandy Hook to Manasquan Inlet NJ out 20 nm- 0456 PM EDT Tue Aug 10 2021 This Hazardous Weather Outlook is for the Atlantic coastal waters adjacent to Monmouth County out 20 nm. .DAY ONE...Through tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. 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. ANZ451-112056- Coastal waters from Manasquan Inlet to Little Egg Inlet NJ out 20 nm- 0456 PM EDT Tue Aug 10 2021 This Hazardous Weather Outlook is for the Atlantic coastal waters adjacent to Ocean County out 20 nm. .DAY ONE...Through tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. 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. ANZ452-112056- Coastal waters from Little Egg Inlet to Great Egg Inlet NJ out 20 nm- 0456 PM EDT Tue Aug 10 2021 This Hazardous Weather Outlook is for the Atlantic coastal waters adjacent to Atlantic County out 20 nm. .DAY ONE...Through tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. 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. ANZ453-112056- Coastal waters from Great Egg Inlet to Cape May NJ out 20 nm- 0456 PM EDT Tue Aug 10 2021 This Hazardous Weather Outlook is for the Atlantic coastal waters adjacent to Cape May County out 20 nm. .DAY ONE...Through tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. 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. ANZ454-112056- Coastal waters from Cape May NJ to Cape Henlopen DE out 20 nm- 0456 PM EDT Tue Aug 10 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. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. 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. ANZ455-112056- Coastal waters from Cape Henlopen to Fenwick Island DE out 20 nm- 0456 PM EDT Tue Aug 10 2021 This Hazardous Weather Outlook is for the Atlantic coastal waters adjacent to Sussex County out 20 nm. .DAY ONE...Through tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. 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.
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
425 PM EDT TUE AUG 10 2021
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0415 PM TSTM WND DMG 2 SSW MACUNGIE 40.49N 75.56W
08/10/2021 LEHIGH PA UTILITY COMPANY
TREE LIMBS DOWN ON WIRES NEAR SHEEPROCK RD.
LIKELY ASSOCIATED WITH OUTFLOW WINDS. TIME
ESTIMATED FROM RADAR.
&&
JEOPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
427 PM EDT TUE AUG 10 2021
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0333 PM TSTM WND DMG 2 NNW STRAUSSTOWN 40.52N 76.20W
08/10/2021 BERKS PA FIRE DEPT/RESCUE
TREE DOWN ON ROUTE 183. TIME ESTIMATED FROM
RADAR.
&&
JEOPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
431 PM EDT TUE AUG 10 2021
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0425 PM TSTM WND DMG 1 SSW EARL TWP 40.35N 75.71W
08/10/2021 BERKS PA FIRE DEPT/RESCUE
TREE DOWN ON WIRES ON LONG LANE RD. LIKELY
ASSOCIATED WITH OUTFLOW WINDS.
&&
JEOSpecial Weather Statement
National Weather Service Mount Holly NJ
452 PM EDT Tue Aug 10 2021
NJZ013-014-020-026-102115-
Eastern Monmouth NJ-Coastal Ocean NJ-Ocean NJ-Western Monmouth NJ-
452 PM EDT Tue Aug 10 2021
...A strong thunderstorm will impact portions of northeastern Ocean
and southeastern Monmouth Counties through 515 PM EDT...
At 452 PM EDT, Doppler radar was tracking a strong thunderstorm over
Point Pleasant Beach, or 8 miles northeast of Toms River, moving east
at 20 mph.
HAZARD...Winds in excess of 40 mph.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects.
Locations impacted include...
Toms River, Manasquan, Point Pleasant Beach, Mantoloking, Allenwood,
Ramtown, Brick Township, Dover Beaches North, Point Pleasant,
Brielle, Spring Lake Heights, Spring Lake, Avon-By-the-sea, Sea Girt,
Bay Head, West Belmar and South Belmar.
This includes Garden State Parkway between mile markers 91 and 97.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 3997 7413 4014 7419 4022 7391 3998 7398
TIME...MOT...LOC 2052Z 254DEG 19KT 4008 7407
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH
SFJSpecial Weather Statement
National Weather Service Mount Holly NJ
505 PM EDT Tue Aug 10 2021
NJZ007>010-PAZ055-062-102130-
Hunterdon NJ-Morris NJ-Somerset NJ-Warren NJ-Monroe PA-
Northampton PA-
505 PM EDT Tue Aug 10 2021
...Strong thunderstorms will impact portions of northern Hunterdon,
southwestern Morris, Warren, northwestern Somerset, southwestern
Monroe and eastern Northampton Counties through 530 PM EDT...
At 505 PM EDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Gilbert to Alpha. Movement was east at 40
mph.
HAZARD...Winds in excess of 40 mph and pea size hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor damage to outdoor objects is
possible.
Locations impacted include...
Easton, Somerville, Bridgewater, Forks, Bound Brook, Hackettstown,
Wilson, Washington, Blairstown, Nazareth, Bangor, High Bridge, Pen
Argyl, Wind Gap, Clinton, Belvidere, Harmony, Peapack And Gladstone,
Oxford and Alpha.
This includes the following highways...
Interstate 78 in Pennsylvania between mile markers 73 and 76.
Interstate 78 in New Jersey between mile markers 0 and 33.
Interstate 80 in New Jersey between mile markers 0 and 15.
Interstate 287 in New Jersey between mile markers 13 and 23.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 4058 7452 4056 7453 4059 7519 4061 7519
4060 7522 4088 7552 4093 7556 4101 7499
TIME...MOT...LOC 2105Z 266DEG 35KT 4089 7544 4065 7519
MAX HAIL SIZE...0.25 IN
MAX WIND GUST...40 MPH
SFJSpecial Weather Statement
National Weather Service Mount Holly NJ
511 PM EDT Tue Aug 10 2021
PAZ070-071-101>104-102145-
Eastern Montgomery PA-Western Montgomery PA-Delaware PA-
Western Chester PA-Eastern Chester PA-Philadelphia PA-
511 PM EDT Tue Aug 10 2021
...Strong thunderstorms will impact portions of southern Montgomery,
Chester, central Philadelphia and central Delaware Counties through
545 PM EDT...
At 511 PM EDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Lansdale to near Honey Brook. Movement was
southeast at 20 mph.
HAZARD...Winds in excess of 40 mph and pea size hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor damage to outdoor objects is
possible.
Locations impacted include...
Philadelphia, West Chester, Norristown, Phoenixville, West Norriton,
East Norriton, Coatesville, Westtown, Downingtown, Conshohocken,
Ambler, Kennett Square, Collegeville, Royersford, Jenkintown,
Narberth, Trappe, Rockledge, Abington and Honey Brook.
This includes the following highways...
Pennsylvania Turnpike between mile markers 303 and 340.
Northeast Extension between mile markers 21 and 30.
Interstate 95 in Pennsylvania between mile markers 30 and 32.
Interstate 76 in Pennsylvania between mile markers 327 and 342.
Interstate 476 in Pennsylvania between mile markers 5 and 19.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 4004 7593 4011 7594 4026 7536 4004 7498
3981 7577 4003 7595
TIME...MOT...LOC 2111Z 313DEG 17KT 4021 7531 4007 7585
MAX HAIL SIZE...0.25 IN
MAX WIND GUST...40 MPH
SFJThe Philadelphia radar (KDIX), 106 km away, was scanning. The volume nearest the first event began at 21:27 UTC.
3 thunderstorm wind. Local standard time, as filed.
A tree limb fell in the road which was hit by a vehicle in Lopatcong Twp. Time estimated from radar.
Wires were downed near New Jersey Ave. Time estimated from radar.
Wires were downed near Gravely Hill Rd. Time estimated from radar.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in New Jersey in 2021Every state in 2021This day in weather historyWarnings in New Jersey, August 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: 972003, 972005, 972004.