A strong cold front approached the mid-Atlantic coast on April 21. Ahead of the front, modest instability developed in a strongly sheared and strongly forced environment.
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 strong cold front approached the mid-Atlantic coast on April 21. Ahead of the front, modest instability developed in a strongly sheared and strongly forced environment. This led to the development of convection along and ahead of the front as it moved through during the mid afternoon hours. Mixed modes of linear and discrete storm cells were present, some of which became strong to severe. Scattered instances of hail and wind damage were reported across much of the eastern mid-Atlantic.
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 Apr 21, 12:04 PM EST, 6 minutes earlier.
Area Forecast Discussion
National Weather Service Mount Holly NJ
104 PM EDT Wed Apr 21 2021
.SYNOPSIS...
A strong low and cold front will sweep through the Northeast today.
Broad high pressure will encompass much of the eastern U.S. Thursday
and Friday. A surface low developing in the central and southern
Plains Friday night will lift quickly northeastward through the Mid-
Atlantic Saturday night into the Canadian Maritimes by Monday. A
slow-moving surface high will build into the eastern U.S. and
western Atlantic through much of next week.
&&
.NEAR TERM /UNTIL 6 PM THIS EVENING/...
A cold front is currently making its way into the western-most
portions of our area, with a fairly impressive thermal contrast
between central and eastern PA (temps in the low 30s near State
College while near 70 degrees are being observed near
Philadelphia). Low pressure, currently in the vicinity of
eastern central PA, will continue to deepen and ride northeast
along this boundary through this afternoon as UL divergence
increases downstream of the deep trough over the Great Lakes. As
a result of the eastward progression of the mid- lvl system,
the cold front will also begin to rapidly progress eastward
through this afternoon reaching the coast by mid- afternoon.
Given the increasing UL dynamics and strengthening sfc.low the front
should be frontogenetic as it crosses our area and will thus serve
as a focus for convective development this afternoon. The primary
question marks regarding today's convective potential are how
quickly portions of area destabilize ahead of the front and
(relatedly) how quickly the front moves through the area. Low-lvl
Theta-E advection driven by an ~40kt LLJ should result in
appreciable sfc-based instability developing over the warm sector by
early afternoon. Areas around I-95 and eastward will have a couple
additional hours to diurnally mix/warm so naturally expect the
highest values of MLCAPE (generally 500-750 J/kg) to be in this
zone. The increasing residence time in the warm sector is the
primary motivation for SPC placing the eastern half or so of area in
a slight risk for convection today, while the western portion of our
area remains in a marginal risk. The kinematic fields still appear
sufficient to support organized convection with damaging winds as
the primary threat, given 0-3km shear values 30-35kts, 0-6km mean
winds around 40kts, and bulk shear values in the neighborhood of 45-
50kts. Convective mode looks to be linear given both the strongly
forced nature of the convection, and the parallel orientation of the
deep-layer shear vector to the boundary. The most likely timing for
convection would be (progressing from W-E) 1-4PM.
High temperatures will be a bit tricky today with a W-E gradient
likely due to the timing of the front. Expect portions of NJ and
Delmarva to hit the 70s, while low to mid 60s will be the norm in
eastern PA where the front crosses earlier in the day, with the
highest uncertainty around the I-95 corridor.
Temperatures and dewpoints will plummet behind the front later this
afternoon, with substantial pressure rises supporting post-frontal
gusts in the 30-35 mph range. Some light rain (snow in the Poconos)
showers will be possible behind the front, given continued height
falls/DCVA, however the magnitude of the dry air advection should
preclude these from being significant.
&&
.SHORT TERM /6 PM THIS EVENING THROUGH FRIDAY NIGHT/...
Main concerns this period will be freeze potential tonight (and to a
lesser degree Thursday night) as well as winds through Thursday.
Fire weather concerns are present on Thursday, as well.
The low and cold front bringing our potentially active weather today
will be well off to our northeast and east by 00z Thursday. Strong
northwest winds will occur in the wake of the low, but the timing of
surface pressure rises is not particularly favorable for efficient
mixing of winds to the surface. Winds aloft will also be weakening
by Thursday, so the potential looks low for the need for a wind
advisory. Additionally, model soundings are far less impressive
today (generally reducing forecast gusts by 5+ kt tonight and
Thursday versus those seen yesterday, both the NAM and GFS). The
larger concern wind-wise is with fire-weather potential on
Thursday. See the fire weather section below for more details.
The next forecast concern is freeze potential tonight. First, it
should be noted that this is not a slam-dunk case for areas
northwest of the Fall Line. Although the cold advection will be
quite strong upstream of the front, breezy conditions will continue
through the night. Models commonly drop temperatures too much in
these regimes, and I suspect there is at least some of this bias
with the output this morning. Nevertheless, the growing season is
well underway outside of the southern Poconos, and with strong
potential for near-freezing to subfreezing temperatures, think
confidence is high enough to upgrade the freeze watch to a freeze
warning. Added Chester County to the product, given propensity for
more sheltered/valley spots to cool readily. Will need to watch for
potential in the Pine Barrens as well, but confidence is too low
here at this point for product issuance.
For Thursday night, winds will be diminishing, and skies are
expected to be clearing. On the first night of post-frontal
northwest flow regimes, a cold bias is typically exhibited. On the
second night, a warm bias tends to occur. As a result, think a
second freeze is possible in northern New Jersey and perhaps
portions of the Lehigh Valley. We will see what happens tonight
before addressing this, however.
High pressure will be shifting southeastward into the western
Atlantic by Friday night, and midlevel ridging will take place in
much of the eastern U.S. After a cold Thursday (highs generally in
the upper 40s to low 50s), around 7-12 degrees of warming is
expected for Friday. It may still be breezy during the day, but
winds will be noticeably lower than on Thursday. The warming
trend will continue with lows Friday night, with quiet
conditions remaining.
&&
.LONG TERM /SATURDAY THROUGH WEDNESDAY/...
A potentially strong but quick-hitting storm will affect the Mid-
Atlantic this weekend, but next week looks much quieter.
At the start of the period (12z Saturday), a southern-stream
perturbation will be moving through the middle Mississippi Valley,
with an attendant surface low bringing widespread precipitation to
the Midwest and strong convection to the Mid-South and Southeast.
The low will track east-northeast, as a northern-stream vort max
interacts with the storm system. This interaction will allow the low
to begin to track more northeasterly into the Mid-Atlantic by
Saturday night. A widespread soaking rain is expected for the region
as the low tracks through, with winds beginning to increase on the
north/west side of the low during the deepening phase of the
cyclone. Though models are in relative agreement with the large-
scale details of the system's evolution, the exact track will be
fairly important in terms of pinpointing relative maxima/minima in
QPF. A track over the area would likely mean dry-slotting for
portions of the CWA, whereas a track farther to the southeast would
be more favorable for widespread heavier total rainfall. Regardless,
rain seems rather likely for the whole area, and perhaps a storm or
two in the far south, closer to the system's warm sector. Increased
PoPs, but also broadened the period of higher PoPs into late
Saturday and also into Sunday (especially for the northeast CWA), as
confidence in timing is not overly high. The storm will be
relatively fast-moving, so this entire period will not be a washout,
but there looks to be a 6-12 hour period where it will be unpleasant
(especially with the anticipated breezy conditions).
As this low moves to the northeast on Sunday, another round of
northwest-flow winds will occur. Depending on the timing of the low,
this may end up being a little more formidable versus the low
affecting us the next couple of days, as the intensity of the low
combined with the more favorable timing may allow for some gusty
winds Sunday afternoon. Breezy conditions will continue through
Monday. One noticeable difference, however, will be the lack of
strong cooling in the wake of the system given its farther south
origins.
The upper pattern appears to become quite blocky next week, and as
has been the case of late, the upper low blasting through the area
this weekend may hang up in the northwest Atlantic upstream of
highly anomalous downstream ridge amplification. A deep trough will
approach the central U.S. during this time, leading to high-
amplitude ridging along the East Coast. All systems will slow down
in this evolving pattern, and the favorable positioning of the ridge
will lead to a quiet and warm stretch for the East Coast. Expect
this to begin in earnest by Tuesday.
&&
.AVIATION /18Z WEDNESDAY THROUGH MONDAY/...
The following discussion is for KPHL, KPNE, KTTN, KABE, KRDG, KILG,
KMIV, KACY and surrounding areas.
Today... VFR conditions will prevail for most of the day, however a
convective line is expected to pass through most of the terminals
(particularly I-95 and eastward) this afternoon. The most likely
timing for this line will be (from W-E) 17-20Z, with gusty winds,
lightning, and temporarily reduced flight categories possible.
The line is now just east of RDG/ABE as of 1630Z. Winds will
generally be SW around 10-15kts with gusts 20-25ks through early
this afternoon, then shift WNW sustained at 15-20kts with gusts
to 30kts behind the front. High confidence in most aspects of
the forecast.
Tonight... Generally VFR although some sporadic MVFR cigs may be
possible at KRDG/KABE at times this evening. WNW winds sustained 10-
15kts with gusts 20-25kts expected. High confidence.
Outlook...
Thursday...VFR with northwest winds 15 to 25 kt with gusts to 30+
kt. High confidence.
Thursday night and Friday...VFR with west winds 7 to 15 kt with
gusts to 20+ kt (higher speeds/gusts during the day). High
confidence.
Friday night and Saturday...Mainly VFR, but clouds should be on the
increase on Saturday. Light west or southwest winds on Friday night
becoming south and increasing to 7 to 15 kt on Saturday. Moderate
confidence.
Saturday night and Sunday...Rain and associated restrictions likely,
especially through Sunday morning. May see some improvement by late
Sunday. Winds will be quite variable and potentially gusty through
this period. Moderate confidence.
&&
.MARINE...
Southerly winds will increase to around 25-30kts over the waters
today and thus an SCA is currently in effect through the daytime
hours. A line of showers and thunderstorms is expected to pass over
the waters in the mid-afternoon time frame and strong winds and
lightning will be possible with these storms. Behind the storms
expect Northwest winds to increase to gale force this evening into
the overnight period. Seas will also increase into the 5-6 foot
range overnight.
Outlook...
Thursday...Northwest gales likely. A gale warning remains in effect
for all waters.
Thursday night...Lingering gales are possible during the evening,
with advisory conditions expected through the night.
Friday...Lingering advisory conditions possible, but conditions are
expected to improve with time.
Friday night and Saturday...Sub-advisory conditions expected.
Saturday night and Sunday...Advisory conditions probable as a strong
low moves through the region. As winds become northwest on Sunday,
advisory conditions become most likely. Gales cannot be ruled out.
Rain is likely Saturday night and Sunday morning.
&&
.MESOANALYSIS...
An upper level low was located near the Great Lakes region this
morning with a dual jet structure at 250 MB noted. In particular, a
weaker northern stream jet streak was analyzed across upstate New
York. This places PA, NJ, and DE in a RRQ. To the south, a sub-
tropical jet streak was centered over GA placing the region in a LFQ
and coupled jet structure. At 500 MB, strong lift was analyzed
with 140 m height falls observed at ILN. This potent upper
level low will continue to push east this afternoon with height
falls increasing in strength towards 160/180 m in 12 hours. The
increasing DCVA and theta-e advection in the low levels has
allowed dewpoints to increase into the low 50s across most of
the coastal plain of NJ. The surface cold front in association
with the mid-level wave is currently extending from a Chester to
Montgomery to Northampton county line. Along this line, CI is
already occuring with two severe thunderstorm warnings out.
Cloud-layer mean wind is mostly boundary parallel with motion
favoring storms staying along the cold front. Cloud-layer shear
values are also from the southwest at ~50 kts. Anvil-level
storm- relative flow is slightly more boundary oblique, but
rapid upscale growth is forecast given the cloud-layer mean wind
and shear orientation relative to the boundary.
Upscale growth will likely continue across the frontal zone as
convection turns into a QLCS. Intensification of the QLCS appears
likely as the line moves into a further destabilized airmass. Across
the coastal plain of NJ surface based CAPE values are already
500 to 1000 J/kg. This would support further intensification and
upscale growth of the line. The convection will likely move
through the I-95 corridor around 2 PM and clear the NJ coast
around 4 PM.
&&
.FIRE WEATHER...
Windy and dry conditions are expected on Thursday across the
area. With low total rainfall amounts expected today, concern is
increasing that favorable fire-weather conditions will occur for
several hours during the day, as winds are forecast to gust to
30+ mph and minimum relative humidity will likely fall well
below 30 percent from late Thursday morning through the
afternoon. We will contact fire-weather partners today
regarding the need for a special weather statement or fire-
weather products on Thursday.
&&
.PHI WATCHES/WARNINGS/ADVISORIES...
PA...Freeze Warning from 1 AM to 9 AM EDT Thursday for PAZ060>062-
101>103-105.
NJ...Freeze Warning from 1 AM to 9 AM EDT Thursday for NJZ001-
007>010.
DE...None.
MD...None.
MARINE...Small Craft Advisory until 6 PM EDT this evening for ANZ430-
431-450>455.
Gale Warning from 6 PM this evening to 6 PM EDT Thursday for
ANZ430-431-450>455.
&&
Synopsis...CMS
Near Term...Carr/Staarmann
Short Term...CMS
Long Term...CMS
Aviation...CMS/Carr
Marine...CMS/Carr
Mesoscale...Haines
Fire Weather...WFO PHIHazardous Weather Outlook National Weather Service Mount Holly NJ 1255 PM EDT Wed Apr 21 2021 DEZ001-221655- New Castle- 1255 PM EDT Wed Apr 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. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. 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. DEZ002-221655- Kent- 1255 PM EDT Wed Apr 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...Thursday through Tuesday. 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. DEZ003-221655- Inland Sussex- 1255 PM EDT Wed Apr 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...Thursday through Tuesday. 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. DEZ004-221655- Delaware Beaches- 1255 PM EDT Wed Apr 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...Thursday through Tuesday. 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. PAZ054-221655- Carbon- 1255 PM EDT Wed Apr 21 2021 This Hazardous Weather Outlook is for Carbon County in Pennsylvania. .DAY ONE...Through tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. 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. PAZ055-221655- Monroe- 1255 PM EDT Wed Apr 21 2021 This Hazardous Weather Outlook is for Monroe County in Pennsylvania. .DAY ONE...Through tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. 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. PAZ060-221655- Berks- 1255 PM EDT Wed Apr 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. Freeze Warning. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Freeze Warning. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. PAZ061-221655- Lehigh- 1255 PM EDT Wed Apr 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. Freeze Warning. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Freeze Warning. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. PAZ062-221655- Northampton- 1255 PM EDT Wed Apr 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. Freeze Warning. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Freeze Warning. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. PAZ070-221655- Delaware- 1255 PM EDT Wed Apr 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. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. 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. PAZ071-221655- Philadelphia- 1255 PM EDT Wed Apr 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. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. 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. PAZ101-221655- Western Chester- 1255 PM EDT Wed Apr 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. Freeze Warning. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Freeze Warning. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. PAZ102-221655- Eastern Chester- 1255 PM EDT Wed Apr 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. Freeze Warning. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Freeze Warning. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. PAZ103-221655- Western Montgomery- 1255 PM EDT Wed Apr 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. Freeze Warning. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Freeze Warning. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. PAZ104-221655- Eastern Montgomery- 1255 PM EDT Wed Apr 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. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. 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. PAZ105-221655- Upper Bucks- 1255 PM EDT Wed Apr 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. Freeze Warning. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Freeze Warning. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. PAZ106-221655- Lower Bucks- 1255 PM EDT Wed Apr 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. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. 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. NJZ001-221655- Sussex- 1255 PM EDT Wed Apr 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. Freeze Warning. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Freeze Warning. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ007-221655- Warren- 1255 PM EDT Wed Apr 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. Freeze Warning. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Freeze Warning. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ008-221655- Morris- 1255 PM EDT Wed Apr 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. Freeze Warning. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Freeze Warning. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ009-221655- Hunterdon- 1255 PM EDT Wed Apr 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. Freeze Warning. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Freeze Warning. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ010-221655- Somerset- 1255 PM EDT Wed Apr 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. Freeze Warning. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Freeze Warning. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ012-221655- Middlesex- 1255 PM EDT Wed Apr 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...Thursday through Tuesday. 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. NJZ013-221655- Western Monmouth- 1255 PM EDT Wed Apr 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...Thursday through Tuesday. 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. NJZ014-221655- Eastern Monmouth- 1255 PM EDT Wed Apr 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...Thursday through Tuesday. 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. NJZ015-221655- Mercer- 1255 PM EDT Wed Apr 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. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. 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. NJZ016-221655- Salem- 1255 PM EDT Wed Apr 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...Thursday through Tuesday. 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. NJZ017-221655- Gloucester- 1255 PM EDT Wed Apr 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. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. 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. NJZ018-221655- Camden- 1255 PM EDT Wed Apr 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. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. 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. NJZ019-221655- Northwestern Burlington- 1255 PM EDT Wed Apr 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. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. 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. NJZ020-221655- Ocean- 1255 PM EDT Wed Apr 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...Thursday through Tuesday. 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. NJZ021-221655- Cumberland- 1255 PM EDT Wed Apr 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...Thursday through Tuesday. 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. NJZ022-221655- Atlantic- 1255 PM EDT Wed Apr 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...Thursday through Tuesday. 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. NJZ023-221655- Cape May- 1255 PM EDT Wed Apr 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...Thursday through Tuesday. 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. NJZ024-221655- Atlantic Coastal Cape May- 1255 PM EDT Wed Apr 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...Thursday through Tuesday. 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. NJZ025-221655- Coastal Atlantic- 1255 PM EDT Wed Apr 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...Thursday through Tuesday. 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. NJZ026-221655- Coastal Ocean- 1255 PM EDT Wed Apr 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...Thursday through Tuesday. 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. NJZ027-221655- Southeastern Burlington- 1255 PM EDT Wed Apr 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...Thursday through Tuesday. 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. MDZ012-221655- Kent MD- 1255 PM EDT Wed Apr 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...Thursday through Tuesday. 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. MDZ015-221655- Queen Annes- 1255 PM EDT Wed Apr 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...Thursday through Tuesday. 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. MDZ019-221655- Talbot- 1255 PM EDT Wed Apr 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...Thursday through Tuesday. 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. MDZ020-221655- Caroline- 1255 PM EDT Wed Apr 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...Thursday through Tuesday. 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. ANZ430-221655- Delaware Bay waters north of East Point NJ to Slaughter Beach DE- 1255 PM EDT Wed Apr 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. Gale Warning. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Gale Warning. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. ANZ431-221655- Delaware Bay waters south of East Point NJ to Slaughter Beach DE- 1255 PM EDT Wed Apr 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. Gale Warning. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Gale Warning. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. ANZ450-221655- Coastal waters from Sandy Hook to Manasquan Inlet NJ out 20 nm- 1255 PM EDT Wed Apr 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. Gale Warning. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Gale Warning. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. ANZ451-221655- Coastal waters from Manasquan Inlet to Little Egg Inlet NJ out 20 nm- 1255 PM EDT Wed Apr 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. Gale Warning. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Gale Warning. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. ANZ452-221655- Coastal waters from Little Egg Inlet to Great Egg Inlet NJ out 20 nm- 1255 PM EDT Wed Apr 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. Gale Warning. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Gale Warning. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. ANZ453-221655- Coastal waters from Great Egg Inlet to Cape May NJ out 20 nm- 1255 PM EDT Wed Apr 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. Gale Warning. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Gale Warning. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. ANZ454-221655- Coastal waters from Cape May NJ to Cape Henlopen DE out 20 nm- 1255 PM EDT Wed Apr 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. Gale Warning. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Gale Warning. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. ANZ455-221655- Coastal waters from Cape Henlopen to Fenwick Island DE out 20 nm- 1255 PM EDT Wed Apr 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. Gale Warning. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Gale Warning. .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
1251 PM EDT WED APR 21 2021
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1240 PM HAIL 2 ENE BETHLEHEM TWP 40.67N 75.30W
04/21/2021 M0.50 INCH NORTHAMPTON PA TRAINED SPOTTER
&&
DISpecial Weather Statement
National Weather Service Mount Holly NJ
1254 PM EDT Wed Apr 21 2021
DEZ001-NJZ016-PAZ070-102-104-211730-
New Castle-Salem-Eastern Montgomery-Delaware-Eastern Chester-
1254 PM EDT Wed Apr 21 2021
...A LINE OF STRONG THUNDERSTORMS WILL AFFECT NORTHERN NEW CASTLE...
NORTHWESTERN SALEM...SOUTH CENTRAL MONTGOMERY...SOUTHEASTERN CHESTER
AND DELAWARE COUNTIES...
At 1253 PM EDT, radar indicated strong thunderstorms were located
along a line extending from Kennett Square to Elkton. Movement was
northeast at 55 mph.
Wind gusts up to 40 mph and half inch hail are possible with these
storms.
Locations impacted include...
Wilmington, Newark, West Chester, Norristown, Chester, West Norriton,
East Norriton, Pennsville, Westtown, Carneys Point, Elsmere, Kennett
Square, New Castle, Penns Grove, Newport, Arden, Stanton, Cheyney,
Glasgow and Talleyville.
This includes the following highways...
Pennsylvania Turnpike between mile markers 328 and 332.
Interstate 95 in Pennsylvania between mile markers 0 and 3.
Interstate 95 in Delaware between mile markers 1 and 23.
Interstate 76 in Pennsylvania between mile markers 327 and 331.
Interstate 295 in New Jersey between mile markers 0 and 5.
Interstate 476 in Pennsylvania near mile marker 5, and between mile
markers 10 and 17.
These storms may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.
LAT...LON 3988 7579 4015 7529 3979 7541 3978 7544
3978 7541 3970 7544 3955 7578 3972 7579
3972 7584
TIME...MOT...LOC 1653Z 230DEG 47KT 3986 7572 3961 7581
JEOPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1255 PM EDT WED APR 21 2021
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1235 PM HAIL EMMAUS 40.54N 75.49W
04/21/2021 M0.25 INCH LEHIGH PA TRAINED SPOTTER
&&
DIPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1258 PM EDT WED APR 21 2021
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1230 PM HAIL 3 WNW UWCHLAN TWP 40.07N 75.68W
04/21/2021 E0.25 INCH CHESTER PA TRAINED SPOTTER
&&
DIPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
102 PM EDT WED APR 21 2021
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1220 PM HAIL 2 SSW DISTRICT TWP 40.43N 75.66W
04/21/2021 E0.25 INCH BERKS PA TRAINED SPOTTER
&&
DIPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
103 PM EDT WED APR 21 2021
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1245 PM HAIL 2 WNW FORKS TWP 40.74N 75.21W
04/21/2021 E0.88 INCH NORTHAMPTON PA TRAINED SPOTTER
&&
DIThe Philadelphia radar (KDIX), 90 km away, was scanning. The volume nearest the first event began at 17:09 UTC.
11 thunderstorm wind, 4 hail. Local standard time, as filed.
A tree was downed onto wires on Rick Rd. Time estimated from radar.
A tree was downed on the I-78 eastbound ramp to Exit 15. One lane was closed. Time estimated from radar.
Social media report of mostly pea size hail with a few stones up to nickel size.
A utility pole was downed on US-22 eastbound, west of Readington Rd. All lanes were closed. Time estimated from radar.
Tree limbs were reported down. Time estimated from radar.
Measured by Fortescue NJ Weathernet site.
An mPing report of quarter size hail. Time estimated from radar.
Social media report. Time estimated from radar.
A garden shed was blown over, a section of vinyl fencing was brought down, and shingles were blown off a house in this area. Report via social media, time estimated from radar.
Measured at Atlantic City International Airport (KACY).
Trees were downed at 6th Ave and Ridgewood St. Emergency management report relayed by broadcast media. Time estimated from radar.
Measured by personal weather station knjlongb89.
Measured by cwop site EW4321.
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, April 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: 947461, 947462, 947448, 947463, 947464, 947456, 947449, 947450, 947451, 947465, 947452, 947466, 947453, 947454, 947455.