Alert archive / Maryland / Special Weather Statements in 2018

Special Weather Statement, NWS Philadelphia/Mount Holly

April 16, 20185 counties in Maryland

NWS Philadelphia/Mount Holly issued this special weather statement at Apr 16, 2018, 4:23 AM EDT for 5 counties in Maryland. It was in force for 37 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Apr 16, 2018, 4:23 AM EDT (08:23 UTC)
Expired
Apr 16, 2018, 5:00 AM EDT
In force
37 min
Issued by
NWS Philadelphia/Mount Holly

Counties Caroline County, MD, Cecil County, MD, Kent County, MD, Queen Anne's County, MD, Talbot County, MD

The radar

The Dover AFB radar (KDOX), 65 km from the middle of the area, began a volume at 08:26 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Washington/Dulle, VA (KIAD), launched 00:00Z, 8.4 hours before the alert went out and 107 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Washington/Dulle, VA at 00:00Z on 2018-04-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Washington/Dulle, VA at 00:00Z on 2018-04-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 576 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
1 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
579 m above ground
0-6 km bulk shear
78 kt
0-1 km storm-relative helicity
576 m²/s²
0-3 km storm-relative helicity
680 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3

Open this sounding in Storm Lab

The text

As transmitted.

650 
WWUS81 KPHI 160823
SPSPHI

Special Weather Statement
National Weather Service Mount Holly NJ
423 AM EDT MON APR 16 2018

MDZ008-012-015-019-020-160900-
Queen Anne's-Talbot-Cecil-Kent-Caroline-
423 AM EDT MON APR 16 2018

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT TALBOT...QUEEN
ANNE'S...CAROLINE...KENT AND EASTERN CECIL COUNTIES...

At 423 AM EDT, radar indicated strong thunderstorms were located
along a line extending from near Langford to near Overton to near
Easton. Movement was northeast at 40 mph.

Winds up to 40 mph are possible with these storms.

Locations impacted include...
Easton, Centerville, Chestertown, Denton, Centreville, North East,
Romancoke, Greensboro, Oakland, Ridgely, Rock Hall, Charlestown,
Trappe, St. Michaels, Church Hill, Preston, Cecilton, Oxford,
Millington and Sudlersville.

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 3895 7622 3897 7625 3891 7624 3890 7625
      3894 7627 3885 7636 3902 7632 3900 7617
      3917 7628 3967 7595 3937 7577 3870 7573
      3866 7616 3876 7630
TIME...MOT...LOC 0823Z 218DEG 33KT 3922 7623 3905 7614 3879 7611 

$$

SFJ

What forecasters said that day

The local office's own words before this special weather statement went out, 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 this special weather statement went out at Apr 16, 1:47 AM EDT, 2 hours 36 minutes earlier.

Area forecast discussion, Apr 16, 1:47 AM EDT, 2 hours 36 minutes before
Area Forecast Discussion
National Weather Service Mount Holly NJ
147 AM EDT Mon Apr 16 2018

.SYNOPSIS...
The low pressure system that brought storms and a cold front to the
Mid Atlantic this morning, will slowly propagate northeast away from
the region on Tuesday. Another area of low pressure organizing over
the Midwest will propagate towards New England on Thursday. As it
does so, our region will first see a warm front, followed quickly by
a cold front. Canadian high pressure will move into the area for
the weekend.

&&

.NEAR TERM /UNTIL 6 AM THIS MORNING/...
1230 AM Update....For 1230 AM updated, we dropped temps slightly
for the next couple hours as the colder air continues to hold on
over much of the area. Freezing rain continues to be ongoing at
Mount Pocono and based on this and other reports we received we
have issued a Winter Weather Advisory until 8z for Carbon,
Monroe, and Sussex Counties. Expect freezing rain to be most
prevalent above 1500 ft. By late tonight, temps should finally
warm above freezing as the warm front moves north.

930 PM Update...For the 930 PM update, made some minor
adjustments to the hourly temperature and dew point grids
(increased the winds a bit more). A low-level jet above the low-
level wedge of colder air is assisting in lift resulting in
quite a bit of shower activity. This is expected to continue,
then we await the arrival of the frontal forcing very late
tonight from the west and southwest. A mesoanalysis shows a
little bit of instability spreading northward across parts of
Delmarva and south/eastern New Jersey. This is indicated on the
MUCAPE analysis thus far and therefore not enough to result in
lightning production. We therefore removed the thunder for this
evening, and focused it more with the incoming frontal forcing
late tonight and more toward morning.

Some light freezing rain is being reported at Mount Pocono
where the temperature is down to 31 degrees. It appears this
near or slightly below freezing air is above 1800 feet in
elevation, therefore rather localized. No advisory or
statements issued at this time as any light icing should be in
the highest elevations and given the gusty winds any accretion
may be limited (roads should be just wet). Temperatures are
expected to slowly rise from south to north overnight as the
low-level jet works its magic and starts to dislodge the colder
air currently stuck at the surface (surface winds start to veer
from east-northeast to southeast).

Otherwise, high-resolution models place the front in portions
of Delmarva and far southern New Jersey toward daybreak, but do
not have a lot of confidence on this placement. Models tend to
progress these fronts too far northward, and suspect this is the
case here as well. Did slow its progress somewhat from hi-res
model consensus (HRRR/RAP, NAM Nest, WRF-ARW/NMM, RGEM), but not
a whole lot from the previous forecast (not enough confidence
to do that yet). Low-CAPE/high-shear setups are always a
challenge, and the placement of the front and the quite marginal
surface-based instability are certainly adding to the
challenge. Nevertheless, with shear profiles exceptionally good
(given the pronounced veering in the low levels downstream of
the front and resultant very large low-level SRH), sufficient
instability would lead to potential for locally severe storms
toward daybreak.

QPF looks quite substantial during the 06Z to 12Z period, especially
near/northwest of the urban corridor, where 6-hour totals of
0.75-1.5 inches are likely, with locally higher totals probable
with the strongest convective cores and with any training
convection that occurs. See the hydrology section below for more
details.

&&

.SHORT TERM /6 AM THIS MORNING THROUGH 6 PM TUESDAY/...
Front moves through the area early in the day, which is not entirely
favorable for generation of surface-based instability and a more
appreciable severe threat as the strongly-forced convection moves
through. Nevertheless, the degree of shear is large (0-6 km bulk
shear in excess of 60 kts and 0-3 km SRH in excess of 300 J/kg)
near/south of the retreating warm front. Certainly cannot rule out
damaging gusts or even a tornado (though the threat of tornadoes
seems low given the marginal surface-based instability). Main
convective line should move out of the area by late morning.

Threat of training convection and locally heavy rain exists, with an
isolated instance of flash flooding plausible. Flash flood watch
continues through 6 pm, though the threat will likely be over before
then. Main threat appears to be with small streams and in urban
areas, and the timing is concerning given the Monday morning
commute. For these reasons, decided a watch was prudent despite the
somewhat marginal setup. See the hydrology section for more details.

As the surface low scoots to the northeast near/west of the I-95
corridor during the morning, cold air aloft will move into the area
as the midlevel low approaches the region. Instability showers
(perhaps even with thunder) will likely develop upstream of the
convective line by afternoon, as depicted in most all of the
guidance. Maintained chances of this along/northwest of the I-95
corridor in particular, given this area's closer proximity to the
midlevel vort max.

Temperatures will probably begin to fall during the afternoon as
colder air filters in upstream of the cold front. Used solely hi-res
guidance for temperatures during this period, as precipitation
effects, frontal placement, and potential for rapidly changing sky
conditions in the afternoon warrant little use of statistically-
derived guidance.

&&

.LONG TERM /TUESDAY NIGHT THROUGH SUNDAY/...
Made few changes to the long term forecast in order to focus on the
ongoing weather tonight.

Fair weather is expected from Tuesday night into Wednesday as high
pressure arrives across the area. It will be a bit warmer than
Monday/Tuesday, but still slightly below normal for mid-April. Highs
will generally be in the mid/upper 50s north/west and low/mid 60s
south/east. These values will be 2 o 4 degrees below normal.

Another low pressure system will approach the area later Wednesday
and last into Thursday evening. The system will be progressive, so
even though the low is depicted by the models as being rather
strong, it will not have large window of opportunity when our area
will be in the warm sector, and thus have more moisture for
precipitation. We therefore have mostly chc pops in the fcst for Wed
night/Thu and slgt chc pops into Thu night. Temperatures will remain
mostly at or a little below normal this period. The warmest day will
be Thursday (near normal) with mid/upper 50s for highs across the
north and low/mid 60s over Delmarva and srn NJ.

High pressure from Canada builds in for late this week and into the
weekend. Mostly fair weather is expected with a continuation of
below normal temperatures.

&&

.AVIATION /06Z MONDAY THROUGH FRIDAY/...
The following discussion is for KPHL, KPNE, KTTN, KABE, KRDG, KILG,
KMIV, KACY and surrounding areas.

Tonight through Monday morning...MVFR/IFR (possibly LIFR) with
low clouds and showers. Winds east-northeast 15-20 knots with
gusts near 30 knots, becoming southeasterly early Monday morning.
Southeasterly low-level wind shear (40-55 knots) overnight and
part of Monday morning.

A line of heavy showers and some thunderstorms moves through
the area between about 09Z and 14Z Monday with LIFR conditions,
torrential rain and erratic winds likely as the heaviest
portion of the line moves through. Lightning is anticipated
however the coverage is less certain and therefore a VCTS was
included for now. Conditions are expected to improve slowly to
MVFR after the heavy showers/storms pass. Moderate confidence.

Monday afternoon...Improvement to VFR, though scattered showers may
develop near/northwest of PHL. Winds becoming southwest or west
around 10 knots with gusts to 20 knots. Potential for some erratic
winds/gusts around showers. Moderate confidence.

Outlook...

Tuesday and Wednesday...Mostly VFR conditions are expected. A few
showers are possible, primarily for KABE and KRDG, which could lead
to brief reductions in the flight category. Moderate confidence.

Wednesday night and Thursday...Starting VFR, we may see conditions
lower as a warm front lifts through the area and precipitation moves
in. However, confidence is low at this time.

Thursday night and Friday...Mostly VFR expected behind a cold front
that will bring a shift to northwesterly winds and drier conditions.
High confidence.

&&

.MARINE...
Gale Warning continues, however winds may remain lighter near buoy
44009.

Models show a relative minimum in wind gusts later this evening
before winds turn southeasterly/southerly and strengthen
overnight through Monday morning. Widespread gales are expected
in advance of a line of heavy showers and storms moving through
the area between 4 AM and noon. Erratic/severe wind gusts and
torrential downpours are possible with these storms.

After the line of storms passes, winds should gradually diminish
from south to north, with small craft advisory conditions likely
during the afternoon on Delaware Bay and the Atlantic Delaware
coastal waters. Gale conditions may linger on the New Jersey coastal
waters for most of the afternoon before conditions improve by
evening.

Outlook...

Tuesday and Tuesday night...lingering elevated seas are possible on
the ocean waters through this time. Otherwise, winds should stay
below SCA criteria.

Wednesday and Thursday...Winds and seas are expected to be below SCA
criteria.

Thursday night and Friday...Winds and seas should increase once
again and may approach SCA criteria.

&&

.HYDROLOGY...
The flash flood watch has been expanded to include Berks and
Chester Counties. We should eventually see more eastward
progression of the main line of convection (currently to our
west), but with its current movement, training of storms,
especially northwest of the 95 corridor is possible this
morning. Therefore, the watch was expanded to include portions
of SE PA not already in the watch.

Flash flood guidance is on the high side (about 1-2 inches in
an hour) in most of the area (lowest in the urban corridor);
however, with anomalous precipitable water, considerable
moisture convergence via a very strong low-level jet impinging
upon the approaching cold front, and contributions from upslope
flow, should any training convection occur within the main line,
1-hr FFG could be met in spots.

One of the primary concerns is the timing. With the main convective
line moving through just before or during the morning commute, heavy
rainfall may cause some traffic headaches. The nature of this event
suggests flood issues would be with flashy small streams and in poor-
drainage urban areas. Mainstem river flooding is not anticipated at
this time.

Total forecast rainfall accumulations in the watch area are
generally 1.5-3 inches, with 1-2 inches expected elsewhere (possibly
somewhat lower in the far southern portions of the county warning
area).

&&

.TIDES/COASTAL FLOODING...
High astronomical tides associated with the new moon yesterday in
combination with increasing anomolies as the result of an
established onshore flow will be the primary drivers for minor to
moderate flooding along the Mid-Atlantic coast through this
afternoon. An offshore wind shift later today is then expected to
end the threat of coastal flooding across the area.

A Coastal Flood Warning continues for the northern NJ coast
(Middlesex, Monmouth, and Ocean Counties) for the high tide this
morning. Though the tide levels on the ocean front fell short of
moderate flooding last evening, have kept the coastal flood warning
going as heavy rain right around the time of this morning's high
tide could exacerbate coastal flooding issues. It may turn out that
the inlet areas and coastal streams experience slightly higher water
levels with this system. Heading south,anomolies are expected to
decrease slightly, so coastal sections in the southern portions of
Ocean County may only see minor flooding, depending on how all the
components of this weather system play out.

Further south, a Coastal Flood Advisory is in effect for the
remainder of the New Jersey coast (Atlantic and Cape May Counties),
the Delaware coast, and all of Delaware Bay, for the high tide this
morning.

There is also the potential of minor flooding along the Delaware
River and upper Chesapeake Bay. We will continue to monitor this
situation and issue later advisories, if necessary.

&&

.PHI WATCHES/WARNINGS/ADVISORIES...
PA...Flash Flood Watch through this afternoon for PAZ054-055-
     060>062-070-071-101>106.
     Winter Weather Advisory until 4 AM EDT early this morning for
     PAZ054-055.
NJ...Flash Flood Watch through this afternoon for NJZ001-007>010-
     012-015-017>019.
     Coastal Flood Advisory until 1 PM EDT this afternoon for
     NJZ021>025-027.
     Coastal Flood Warning until 1 PM EDT this afternoon for
     NJZ012>014-020-026.
     Coastal Flood Advisory until 2 PM EDT this afternoon for
     NJZ016.
     Winter Weather Advisory until 4 AM EDT early this morning for
     NJZ001.
DE...Coastal Flood Advisory until 1 PM EDT this afternoon for
     DEZ002>004.
     Coastal Flood Advisory until 2 PM EDT this afternoon for
     DEZ001.
MD...None.
MARINE...Gale Warning until 5 PM EDT this afternoon for ANZ450>453.
     Gale Warning until 11 AM EDT this morning for ANZ430-431-454-
     455.

&&

Synopsis...O'Hara
Near Term...CMS/Fitzsimmons/Gorse
Short Term...CMS
Long Term...O'Hara
Aviation...CMS/Gorse/O'Hara
Marine...CMS/O'Hara
Hydrology...
Tides/Coastal Flooding...
Hazardous weather outlook, Apr 16, 3:35 AM EDT, 48 minutes before
Hazardous Weather Outlook
National Weather Service Mount Holly NJ
335 AM EDT Mon Apr 16 2018

NJZ007>010-PAZ061-062-101>105-170745-
Warren-Morris-Hunterdon-Somerset-Lehigh-Northampton-Western Chester-
Eastern Chester-Western Montgomery-Eastern Montgomery-Upper Bucks-
335 AM EDT Mon Apr 16 2018

...FLASH FLOOD WATCH IN EFFECT THROUGH THIS AFTERNOON...

This Hazardous Weather Outlook is for northern New Jersey,
northwest New Jersey, east central Pennsylvania and southeast
Pennsylvania.

.DAY ONE...Today and Tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Flash Flood Watch.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

Weather spotters are encouraged to report significant weather
conditions according to standard operating procedures.

MDZ008-012-015-019-020-170745-
Cecil-Kent MD-Queen Annes-Talbot-Caroline-
335 AM EDT Mon Apr 16 2018

This Hazardous Weather Outlook is for northeast Maryland.

.DAY ONE...Today and Tonight.

A storm system will be affecting the region with showers, gusty
winds and possibly a thunderstorms early this morning. Locally heavy
rains may cause urban and small stream flooding at times.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

Weather spotters are encouraged to report significant weather
conditions according to standard operating procedures.

NJZ001-PAZ054-055-170745-
Sussex-Carbon-Monroe-
335 AM EDT Mon Apr 16 2018

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 6 AM EDT EARLY THIS
MORNING...
...FLASH FLOOD WATCH IN EFFECT THROUGH THIS AFTERNOON...

This Hazardous Weather Outlook is for northern New Jersey and
northeast Pennsylvania.

.DAY ONE...Today and Tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Winter Weather Advisory.
   Flash Flood Watch.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

Weather spotters are encouraged to report significant weather
conditions according to standard operating procedures.

NJZ015-017>019-PAZ070-071-106-170745-
Mercer-Gloucester-Camden-Northwestern Burlington-Delaware-
Philadelphia-Lower Bucks-
335 AM EDT Mon Apr 16 2018

...FLASH FLOOD WATCH IN EFFECT THROUGH THIS AFTERNOON...
...COASTAL FLOOD ADVISORY IN EFFECT FROM 11 AM THIS MORNING TO 3 PM
EDT THIS AFTERNOON...

This Hazardous Weather Outlook is for central New Jersey, southern
New Jersey and southeast Pennsylvania.

.DAY ONE...Today and Tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Flash Flood Watch.
   Coastal Flood Advisory.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

Weather spotters are encouraged to report significant weather
conditions according to standard operating procedures.

DEZ001-NJZ016-170745-
New Castle-Salem-
335 AM EDT Mon Apr 16 2018

...COASTAL FLOOD ADVISORY IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON...

This Hazardous Weather Outlook is for northern Delaware and
southern New Jersey.

.DAY ONE...Today and Tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Coastal Flood Advisory.

A storm system will be affecting the region with showers, gusty
winds and possibly a thunderstorms early this morning. Locally heavy
rains may cause urban and small stream flooding at times.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

Weather spotters are encouraged to report significant weather
conditions according to standard operating procedures.

NJZ013-014-020-026-170745-
Western Monmouth-Eastern Monmouth-Ocean-Coastal Ocean-
335 AM EDT Mon Apr 16 2018

...COASTAL FLOOD WARNING IN EFFECT UNTIL 1 PM EDT THIS AFTERNOON...

This Hazardous Weather Outlook is for central New Jersey and
southern New Jersey.

.DAY ONE...Today and Tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Coastal Flood Warning.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

Weather spotters are encouraged to report significant weather
conditions according to standard operating procedures.

NJZ012-170745-
Middlesex-
335 AM EDT Mon Apr 16 2018

...COASTAL FLOOD WARNING IN EFFECT UNTIL 1 PM EDT THIS AFTERNOON...
...FLASH FLOOD WATCH IN EFFECT THROUGH THIS AFTERNOON...

This Hazardous Weather Outlook is for northern New Jersey.

.DAY ONE...Today and Tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Coastal Flood Warning.
   Flash Flood Watch.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

Weather spotters are encouraged to report significant weather
conditions according to standard operating procedures.

DEZ002>004-NJZ021>025-027-170745-
Kent-Inland Sussex-Delaware Beaches-Cumberland-Atlantic-Cape May-
Atlantic Coastal Cape May-Coastal Atlantic-Southeastern Burlington-
335 AM EDT Mon Apr 16 2018

...COASTAL FLOOD ADVISORY IN EFFECT UNTIL 1 PM EDT THIS AFTERNOON...

This Hazardous Weather Outlook is for central Delaware, southern
Delaware and southern New Jersey.

.DAY ONE...Today and Tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Coastal Flood Advisory.

A storm system will be affecting the region with showers, gusty
winds and possibly a thunderstorms early this morning. Locally heavy
rains may cause urban and small stream flooding at times.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

Weather spotters are encouraged to report significant weather
conditions according to standard operating procedures.

PAZ060-170745-
Berks-
335 AM EDT Mon Apr 16 2018

...FLASH FLOOD WATCH IN EFFECT THROUGH THIS AFTERNOON...

This Hazardous Weather Outlook is for east central Pennsylvania.

.DAY ONE...Today and Tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Flash Flood Watch.

Flash Flood Watch.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

For rural areas of Berks county, low temperatures will range from
the lower to middle 30s on Tuesday night. There is the potential for
frost, which may impact sensitive plants.

.SPOTTER INFORMATION STATEMENT...

Weather spotters are encouraged to report significant weather
conditions according to standard operating procedures.

ANZ430-431-454-455-170745-
Delaware Bay waters north of East Point NJ to Slaughter Beach DE-
Delaware Bay waters south of East Point NJ to Slaughter Beach DE-
Coastal waters from Cape May NJ to Cape Henlopen DE out 20 nm-
Coastal waters from Cape Henlopen to Fenwick Island DE out 20 nm-
335 AM EDT Mon Apr 16 2018

...GALE WARNING IN EFFECT UNTIL 11 AM EDT THIS MORNING...

This Hazardous Weather Outlook is for Atlantic coastal waters and
Delaware Bay Waters.

.DAY ONE...Today and Tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Gale Warning.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

Weather spotters are encouraged to report significant weather
conditions according to standard operating procedures.

ANZ450>453-170745-
Coastal waters from Sandy Hook to Manasquan Inlet NJ out 20 nm-
Coastal waters from Manasquan Inlet to Little Egg Inlet NJ out 20 nm-
Coastal waters from Little Egg Inlet to Great Egg Inlet NJ out 20 nm-
Coastal waters from Great Egg Inlet to Cape May NJ out 20 nm-
335 AM EDT Mon Apr 16 2018

...GALE WARNING IN EFFECT UNTIL 5 PM EDT THIS AFTERNOON...

This Hazardous Weather Outlook is for Atlantic coastal waters.

.DAY ONE...Today and Tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Gale Warning.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

Weather spotters are encouraged to report significant weather
conditions according to standard operating procedures.

In the hours before

Local storm report, Apr 15, 10:26 PM EDT, 5 hours 57 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1026 PM EDT SUN APR 15 2018

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

0257 PM     FREEZING RAIN    COOLBAUGH TWP           41.18N  75.49W
04/15/2018  E0.00 INCH       MONROE             PA   TRAINED SPOTTER

            MINOR ICE IN TREES AND POWER LINES. ELEVATION 1964 FT.

&&

EVENT NUMBER PHI1800601

SFJ
Local storm report, Apr 16, 2:11 AM EDT, 2 hours 12 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
211 AM EDT MON APR 16 2018

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

0200 AM     FREEZING RAIN    POCONO MOUNTAINS AIRPOR 41.14N  75.38W
04/16/2018  M0.19 INCH       MONROE             PA   ASOS

            RADIAL AMOUNT

&&

EVENT NUMBER PHI1800602

SFJ
Special weather statement, Apr 16, 3:45 AM EDT, 38 minutes before
Special Weather Statement
National Weather Service Mount Holly NJ
345 AM EDT MON APR 16 2018

MDZ008-012-015-019-020-PAZ101-160815-
Queen Anne's-Talbot-Cecil-Kent-Caroline-Western Chester-
345 AM EDT MON APR 16 2018

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT TALBOT...QUEEN
ANNE'S...WEST CENTRAL CAROLINE...WESTERN KENT...WESTERN CECIL AND
SOUTHWESTERN CHESTER COUNTIES...

At 344 AM EDT, radar indicated strong thunderstorms were located
along a line extending from near Arbutus to 7 miles east of Breezy
Point. Movement was northeast at 55 mph.

Winds up to 40 mph and heavy rain are possible with these storms.

Locations impacted include...
Easton, Centerville, Talbot, Chestertown, Centreville, Romancoke,
Rising Sun, Rock Hall, Trappe, St. Michaels, Church Hill, Oxford,
Queen Anne, Glen Roy, Old Town, Grasonville, Starr, Copperville, West
Nottingham and Mount Vernon.

LAT...LON 3875 7635 3886 7626 3879 7620 3879 7619
      3894 7621 3884 7637 3894 7636 3904 7631
      3900 7617 3917 7628 3941 7601 3953 7599
      3972 7623 3983 7602 3886 7592 3857 7604
TIME...MOT...LOC 0744Z 197DEG 64KT 3921 7668 3859 7637

SFJ
Special weather statement, Apr 16, 4:23 AM EDT, 0 minutes before
Special Weather Statement
National Weather Service Mount Holly NJ
423 AM EDT MON APR 16 2018

MDZ008-012-015-019-020-160900-
Queen Anne's-Talbot-Cecil-Kent-Caroline-
423 AM EDT MON APR 16 2018

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT TALBOT...QUEEN
ANNE'S...CAROLINE...KENT AND EASTERN CECIL COUNTIES...

At 423 AM EDT, radar indicated strong thunderstorms were located
along a line extending from near Langford to near Overton to near
Easton. Movement was northeast at 40 mph.

Winds up to 40 mph are possible with these storms.

Locations impacted include...
Easton, Centerville, Chestertown, Denton, Centreville, North East,
Romancoke, Greensboro, Oakland, Ridgely, Rock Hall, Charlestown,
Trappe, St. Michaels, Church Hill, Preston, Cecilton, Oxford,
Millington and Sudlersville.

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 3895 7622 3897 7625 3891 7624 3890 7625
      3894 7627 3885 7636 3902 7632 3900 7617
      3917 7628 3967 7595 3937 7577 3870 7573
      3866 7616 3876 7630
TIME...MOT...LOC 0823Z 218DEG 33KT 3922 7623 3905 7614 3879 7611

SFJ

The office that day

Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 16, 12:32 AM EDTWinter Weather AdvisoryPHISussex8 hr
Apr 16, 5:20 AM EDTSpecial Marine WarningPHI55 min
Apr 16, 5:34 AM EDTAreal Flood AdvisoryPHIGloucester, Salem4 hr
Apr 16, 5:52 AM EDTAreal Flood AdvisoryPHIBurlington, Camden, Gloucester, Mercer7 hr
Apr 16, 6:07 AM EDTSpecial Marine WarningPHI53 min
Apr 16, 6:30 AM EDTAreal Flood AdvisoryPHIHunterdon4 hr
Apr 16, 6:45 AM EDTSpecial Weather StatementPHICape May, Cumberland45 min
Apr 16, 6:49 AM EDTSpecial Marine WarningPHI86 min
Apr 16, 7:04 AM EDTFlash Flood WarningPHIGloucester, Salem4 hr
Apr 16, 7:26 AM EDTSpecial Weather StatementPHICamden, Gloucester, Mercer34 min
Apr 16, 7:49 AM EDTSpecial Marine WarningPHI116 min
Apr 16, 8:13 AM EDTSpecial Marine WarningPHI62 min
Apr 16, 8:28 AM EDTSpecial Weather StatementPHIMiddlesex, Monmouth, Morris, Somerset, Sussex, Warren47 min
Apr 16, 9:08 AM EDTAreal Flood AdvisoryPHIHunterdon, Mercer, Middlesex, Monmouth, Morris, Ocean and 1 more4 hr
Apr 16, 9:26 AM EDTAreal Flood WarningPHIBurlington, Hunterdon, Mercer, Middlesex, Monmouth, Morris and 3 more4 hr
Apr 16, 1:18 PM EDTCoastal Flood AdvisoryPHIMiddlesex, Monmouth, Ocean13 hr
Apr 16, 1:31 PM EDTAreal Flood WarningPHIBurlington, Hunterdon, Mercer, Middlesex, Monmouth, Morris and 2 more4 hr
Apr 16, 2:45 PM EDTCoastal Flood WarningPHIBurlington, Camden, Gloucester, Mercer3 hr
Apr 16, 3:52 PM EDTSmall Craft AdvisoryPHI44 hr
Apr 16, 4:46 PM EDTRiver Flood WarningPHISomerset28 hr
Apr 16, 5:27 PM EDTAreal Flood WarningPHISomerset8 hr
Apr 16, 7:45 AM EDTRiver Flood WarningPHIDelaware4 hr
Apr 16, 8:44 AM EDTAreal Flood WarningPHIPhiladelphia2 hr
Apr 16, 10:45 AM EDTAreal Flood WarningPHIChester, Delaware, Montgomery, Philadelphia4 hr
Apr 16, 11:41 AM EDTRiver Flood WarningPHIBucks12 hr
Apr 16, 12:04 PM EDTSpecial Weather StatementPHIChester26 min
Apr 16, 2:27 PM EDTAreal Flood WarningPHIMontgomery, Philadelphia5 hr
Apr 16, 4:55 AM EDTSpecial Weather StatementPHIKent, New Castle50 min
Apr 16, 6:04 AM EDTSpecial Weather StatementPHIKent, Sussex26 min
Apr 16, 3:45 AM EDTSpecial Weather StatementPHIKent, Queen Anne's, Talbot30 min
Apr 16, 3:56 AM EDTSevere Thunderstorm WarningPHICecil, Kent, Queen Anne's, Talbot24 min
Apr 16, 4:38 AM EDTAreal Flood AdvisoryPHICaroline, Cecil, Kent, Queen Anne's, Talbot4 hr

Nearby

Special Weather Statements in Maryland, 2018Every special weather statement in 2018

Sources

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