Hail and Damaging Winds in Delaware, April 21, 2021

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 PHI

Hazardous Weather Outlook
National Weather Service Mount Holly NJ
0210 PM EDT Wed Apr 21 2021

DEZ001-221810-
New Castle-
0210 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.

DEZ002-221810-
Kent-
0210 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.

DEZ003-221810-
Inland Sussex-
0210 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.

DEZ004-221810-
Delaware Beaches-
0210 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.

PAZ054-221810-
Carbon-
0210 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.

PAZ055-221810-
Monroe-
0210 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.

PAZ060-221810-
Berks-
0210 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.

PAZ061-221810-
Lehigh-
0210 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.

.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.

PAZ062-221810-
Northampton-
0210 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.

.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.

PAZ070-221810-
Delaware-
0210 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.

PAZ071-221810-
Philadelphia-
0210 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.

PAZ101-221810-
Western Chester-
0210 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.

.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.

PAZ102-221810-
Eastern Chester-
0210 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.

.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.

PAZ103-221810-
Western Montgomery-
0210 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.

PAZ104-221810-
Eastern Montgomery-
0210 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.

PAZ105-221810-
Upper Bucks-
0210 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.

PAZ106-221810-
Lower Bucks-
0210 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.

NJZ001-221810-
Sussex-
0210 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.

NJZ007-221810-
Warren-
0210 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.

.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.

NJZ008-221810-
Morris-
0210 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.

NJZ009-221810-
Hunterdon-
0210 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.

NJZ010-221810-
Somerset-
0210 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.

NJZ012-221810-
Middlesex-
0210 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.

NJZ013-221810-
Western Monmouth-
0210 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.

NJZ014-221810-
Eastern Monmouth-
0210 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.

NJZ015-221810-
Mercer-
0210 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.

NJZ016-221810-
Salem-
0210 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.

NJZ017-221810-
Gloucester-
0210 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.

NJZ018-221810-
Camden-
0210 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.

NJZ019-221810-
Northwestern Burlington-
0210 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.

NJZ020-221810-
Ocean-
0210 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.

NJZ021-221810-
Cumberland-
0210 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.

NJZ022-221810-
Atlantic-
0210 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.

NJZ023-221810-
Cape May-
0210 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.

NJZ024-221810-
Atlantic Coastal Cape May-
0210 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.

NJZ025-221810-
Coastal Atlantic-
0210 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.

NJZ026-221810-
Coastal Ocean-
0210 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.

NJZ027-221810-
Southeastern Burlington-
0210 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.

MDZ012-221810-
Kent MD-
0210 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.

MDZ015-221810-
Queen Annes-
0210 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.

MDZ019-221810-
Talbot-
0210 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.

MDZ020-221810-
Caroline-
0210 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.

ANZ430-221810-
Delaware Bay waters north of East Point NJ to Slaughter Beach DE-
0210 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.

ANZ431-221810-
Delaware Bay waters south of East Point NJ to Slaughter Beach DE-
0210 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.

ANZ450-221810-
Coastal waters from Sandy Hook to Manasquan Inlet NJ out 20 nm-
0210 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.

ANZ451-221810-
Coastal waters from Manasquan Inlet to Little Egg Inlet NJ out 20 nm-
0210 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.

ANZ452-221810-
Coastal waters from Little Egg Inlet to Great Egg Inlet NJ out 20 nm-
0210 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.

ANZ453-221810-
Coastal waters from Great Egg Inlet to Cape May NJ out 20 nm-
0210 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.

ANZ454-221810-
Coastal waters from Cape May NJ to Cape Henlopen DE out 20 nm-
0210 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.

ANZ455-221810-
Coastal waters from Cape Henlopen to Fenwick Island DE out 20 nm-
0210 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
200 PM EDT WED APR 21 2021

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0100 PM     TSTM WND GST     WHITE CLAY CREEK        39.73N 75.73W
04/21/2021  M46 MPH          NEW CASTLE         DE   MESONET

&&

DI

Special Weather Statement
National Weather Service Mount Holly NJ
203 PM EDT Wed Apr 21 2021

NJZ021-211830-
Cumberland-
203 PM EDT Wed Apr 21 2021

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT CUMBERLAND COUNTY...

At 203 PM EDT, radar indicated strong thunderstorms were located
along a line extending from Greenwich to Dover Base Housing. Movement
was east at 50 mph.

Wind gusts up to 50 mph and half inch hail are possible with these
storms.

Locations impacted include...
Vineland, Millville, Bridgeton, Cumberland, Laurel Lake, Greenwich,
Newport, Mauricetown, Leesburg, Port Norris, Dividing Creek, Fairton,
Bricksboro, Cedarville, Port Elizabeth, Bivalve, Fortesque, South
Vineland and Rosenhayn.

If outdoors, consider seeking shelter inside a building.

LAT...LON 3918 7497 3919 7523 3942 7540 3948 7512
      3946 7508 3949 7507 3951 7498 3947 7492
TIME...MOT...LOC 1803Z 250DEG 44KT 3939 7533 3913 7548

JEO

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
206 PM EDT WED APR 21 2021

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0150 PM     HAIL             2 NW EDGE HILL          39.19N 75.55W
04/21/2021  E0.70 INCH       KENT               DE   PUBLIC

            DIME SIZE HAIL IN DOVER, DE. TIME ESTIMATED
            FROM RADAR.

&&

BAH

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
209 PM EDT WED APR 21 2021

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0155 PM     HAIL             MORRIS TWP              40.78N 74.46W
04/21/2021  E0.25 INCH       MORRIS             NJ   TRAINED SPOTTER

&&

DI

Special Weather Statement
National Weather Service Mount Holly NJ
209 PM EDT Wed Apr 21 2021

DEZ002>004-MDZ020-211845-
Inland Sussex-Kent-Delaware Beaches-Caroline-
209 PM EDT Wed Apr 21 2021

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT SUSSEX...SOUTH CENTRAL
KENT AND SOUTHEASTERN CAROLINE COUNTIES...

At 208 PM EDT, radar indicated strong thunderstorms were located
along a line extending from Milford to near Seaford. Movement was
northeast at 60 mph.

Wind gusts up to 50 mph and pea size hail are possible with these
storms.

Locations impacted include...
Georgetown, Milford, Seaford, Millsboro, Laurel, Lewes, Milton,
Bridgeville, Dagsboro, Ellendale, Henlopen Acres, Cape Henlopen State
Park, Sycamore, Long Neck, Blades, Greenwood, Dewey Beach, Bethel and
Farmington.

If outdoors, consider seeking shelter inside a building.

LAT...LON 3864 7571 3868 7576 3889 7561 3895 7523
      3879 7507 3856 7506 3854 7570
TIME...MOT...LOC 1808Z 235DEG 54KT 3889 7544 3865 7570

JEO

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
210 PM EDT WED APR 21 2021

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0156 PM     HAIL             1 ESE WHIPPANY          40.83N 74.40W
04/21/2021  E0.25 INCH       MORRIS             NJ   TRAINED SPOTTER

            PEA SIZE HAIL REPORTED IN WHIPPANY, NJ. TIME
            ESTIMATED FROM RADAR.

&&

BAH