Alert archive / Delaware / Special Weather Statements in 2019

Special Weather Statement, NWS Philadelphia/Mount Holly

May 2, 2019Sussex County, Delaware

NWS Philadelphia/Mount Holly issued this special weather statement at May 2, 2019, 6:17 PM EDT for Sussex County, Delaware. It was in force for 58 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: May 2, 2019, 6:17 PM EDT (22:17 UTC)
Expired: May 2, 2019, 7:15 PM EDT
In force: 58 min
Issued by: NWS Philadelphia/Mount Holly

County Sussex County, DE

The radar

The Dover AFB radar (KDOX), 18 km from the middle of the area, began a volume at 22:18 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

Wallops Is Stn, VA (KWAL), launched 12:00Z, 10.3 hours before the alert went out and 83 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 132 J/kg
Mixed-layer CIN: -205 J/kg
Mixed-layer LCL: 1166 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 101 m²/s²
0-3 km storm-relative helicity: 67 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

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 May 2, 5:03 PM EDT, 1 hour 14 minutes earlier.

Area forecast discussion, May 2, 5:03 PM EDT, 1 hour 14 minutes before

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

Hazardous weather outlook, May 2, 3:42 PM EDT, 2 hours 35 minutes before

Hazardous Weather Outlook
National Weather Service Mount Holly NJ
342 PM EDT Thu May 2 2019

DEZ001>004-MDZ008-012-015-019-020-NJZ001-007>010-012>027-PAZ054-055-
060>062-070-071-101>106-031945-
New Castle-Kent-Inland Sussex-Delaware Beaches-Cecil-Kent MD-
Queen Annes-Talbot-Caroline-Sussex-Warren-Morris-Hunterdon-Somerset-
Middlesex-Western Monmouth-Eastern Monmouth-Mercer-Salem-Gloucester-
Camden-Northwestern Burlington-Ocean-Cumberland-Atlantic-Cape May-
Atlantic Coastal Cape May-Coastal Atlantic-Coastal Ocean-
Southeastern Burlington-Carbon-Monroe-Berks-Lehigh-Northampton-
Delaware-Philadelphia-Western Chester-Eastern Chester-
Western Montgomery-Eastern Montgomery-Upper Bucks-Lower Bucks-
342 PM EDT Thu May 2 2019

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

.DAY ONE...This afternoon and tonight.

There is a low probability for widespread hazardous weather.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

Several rounds of showers and storms are expected through the
weekend. There is potential for heavy rainfall and flooding,
especially with a system affecting the region this weekend.

.SPOTTER INFORMATION STATEMENT...

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

ANZ430-431-450>455-031945-
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 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-
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-
342 PM EDT Thu May 2 2019

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

.DAY ONE...This afternoon and tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

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

Special weather statement, May 2, 4:23 PM EDT, 1 hour 54 minutes before

Special Weather Statement
National Weather Service Mount Holly NJ
423 PM EDT Thu May 2 2019

MDZ012-015-019-022115-
Queen Anne's-Talbot-Kent-
423 PM EDT Thu May 2 2019

...A LINE OF STRONG THUNDERSTORMS MAY AFFECT TALBOT...QUEEN ANNE'S
AND KENT COUNTIES...

At 420 PM EDT, radar indicated that strong thunderstorms were
located between Baltimore and Washington. Movement was east at 35
mph.

Winds in excess of 40 mph and half inch hail are possible with these
storms.

Locations that may be impacted include...
Easton, Centerville, Talbot, Chestertown, Centreville, Romancoke, St.
Michaels, Church Hill, Oxford, Sudlersville, Old Town, Grasonville,
Starr, Copperville, Tilghman Island, Stevensville, Skipton, Langford,
Chester and Overton.

If outdoors, consider seeking shelter inside a building.

LAT...LON 3886 7626 3879 7620 3881 7620 3897 7625
      3884 7637 3885 7638 3896 7636 3903 7632
      3900 7617 3902 7621 3925 7623 3923 7581
      3865 7615 3876 7622 3872 7630 3878 7629
      3867 7634 3876 7638
TIME...MOT...LOC 2020Z 278DEG 29KT 3919 7648 3884 7669

Iovino

Special weather statement, May 2, 5:32 PM EDT, 45 minutes before

Special Weather Statement
National Weather Service Mount Holly NJ
532 PM EDT Thu May 2 2019

MDZ015-019-020-022230-
Queen Anne's-Talbot-Caroline-
532 PM EDT Thu May 2 2019

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

At 530 PM EDT, radar indicated strong thunderstorms were located
along a line extending from near Centreville to near Oxford.
Movement was east at 25 mph.

Winds in excess of 40 mph and pea size hail are possible with these
storms.

Locations impacted include...
Easton, Denton, Centreville, Federalsburg, Greensboro, Oakland,
Ridgely, Trappe, Church Hill, Preston, Oxford, Goldsboro, Queen
Anne, Starr, Agner and Choptank.

If outdoors, consider seeking shelter inside a building.

LAT...LON 3863 7608 3864 7615 3869 7619 3867 7620
      3872 7623 3879 7622 3879 7619 3880 7622
      3883 7619 3898 7620 3900 7617 3906 7620
      3914 7609 3916 7575 3865 7571 3869 7577
      3870 7590 3866 7596 3860 7599 3857 7604
TIME...MOT...LOC 2131Z 271DEG 21KT 3906 7611 3865 7615

Iovino

Special weather statement, May 2, 6:17 PM EDT, 0 minutes before

Special Weather Statement
National Weather Service Mount Holly NJ
617 PM EDT Thu May 2 2019

DEZ002-003-022315-
Inland Sussex-Kent-
617 PM EDT Thu May 2 2019

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT SUSSEX AND SOUTHWESTERN
KENT COUNTIES...

At 615 PM EDT, radar indicated strong thunderstorms were located
along a line extending from near Denton to near Secretary in
Maryland. Movement was east at 30 mph.

Winds in excess of 40 mph and pea size hail are possible with these
storms.

Locations that may be impacted include...

Georgetown, Seaford, Laurel, Milton, Bridgeville, Delmar, Ellendale,
Sycamore, Andrewsville, Blades, Greenwood, Bethel and Farmington.

If outdoors, consider seeking shelter inside a building.

LAT...LON 3846 7569 3849 7570 3891 7573 3887 7526
      3886 7524 3885 7523 3845 7543
TIME...MOT...LOC 2216Z 271DEG 25KT 3886 7577 3858 7591

Iovino

The office that day

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

Issued	Product	Office	Counties	Lasted
May 1, 8:43 PM EDT	Marine Dense Fog Advisory	PHI		11 hr
May 2, 4:19 AM EDT	Dense Fog Advisory	PHI	Atlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 5 more	5 hr
May 2, 6:59 PM EDT	Special Marine Warning	PHI		61 min
May 2, 7:45 PM EDT	Special Marine Warning	PHI		45 min
May 2, 6:38 PM EDT	Severe Thunderstorm Warning	PHI	Kent, Sussex	52 min
May 2, 7:20 PM EDT	Special Weather Statement	PHI	Sussex	40 min
May 2, 4:23 PM EDT	Special Weather Statement	PHI	Kent, Queen Anne's, Talbot	52 min
May 2, 4:48 PM EDT	Severe Thunderstorm Warning	PHI	Caroline, Kent, Queen Anne's, Talbot	42 min
May 2, 5:32 PM EDT	Special Weather Statement	PHI	Caroline, Queen Anne's, Talbot	58 min

Nearby

Special Weather Statements in Delaware, 2019 Every special weather statement in 2019

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.