Alert archive / Maryland / Special Weather Statements in 2016

Special Weather Statement, NWS Wakefield, VA

July 13, 2016Dorchester County, Maryland

NWS Wakefield, VA issued this special weather statement at Jul 13, 2016, 4:16 PM EDT for Dorchester County, Maryland. It was in force for 14 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: Jul 13, 2016, 4:16 PM EDT (20:16 UTC)
Expired: Jul 13, 2016, 4:30 PM EDT
In force: 14 min
Issued by: NWS Wakefield, VA

County Dorchester County, MD

The radar

The Dover AFB radar (KDOX), 47 km from the middle of the area, began a volume at 20:17 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, 8.3 hours before the alert went out and 72 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: 361 J/kg
Mixed-layer CIN: -33 J/kg
Mixed-layer LCL: 789 m above ground
0-6 km bulk shear: 19 kt
0-1 km storm-relative helicity: 12 m²/s²
0-3 km storm-relative helicity: 63 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

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 Wakefield, VA wrote its last area forecast discussion before this special weather statement went out at Jul 13, 2:18 PM EDT, 1 hour 58 minutes earlier.

Area forecast discussion, Jul 13, 2:18 PM EDT, 1 hour 58 minutes before

Area Forecast Discussion
National Weather Service Wakefield VA
218 PM EDT WED JUL 13 2016

.SYNOPSIS...
A warm front lifts across the area and off the coast through
tonight. High pressure becomes nearly stationary off the Southeast
coast through Friday. A cold front will push into the region
Saturday before stalling nearby or just south of the region on
Sunday.

&&

.NEAR TERM /THROUGH TONIGHT/...
Late this morning, a warm front was pushing thru ern portions of
the CWA with widely sctd showers associated with it. Expect very
warm and humid conditions this aftn into this evening. The lingering
warm front and developing lee side trough will combine with
increased instability to ignite sctd showers and tstms acrs much
of the FA that will linger into the evening (pops 30-50%). Only a
marginal risk at best for any severe wx today due to a weakly
sheared environment. Otherwise, any tstm will still be capable of
producing locally heavy rain due to PW's around 2" and slow storm
motions. Highs today 85-90. Lows tonight in the 70s. Pcpn should
wane overnight into Thu morning, as the warm front pushes ENE and
off the coast.

&&

.SHORT TERM /THURSDAY THROUGH FRIDAY/...
Models show H5 ridge off the Southeast coast becoming dominate
across the region both Thu and Fri...leading to hot temperatures.
H85 temps rise to ~22C with 1000-850 mb thickness exceeding 1444
meters which supports highs in the mid/upr 90s. Heat indices,
especially from the I-95 corridor south/east, may nudge into heat
advisory criteria of 105-109 degrees. Will continue to mention
this threat in the HWO and latter shifts will need to consider
possible headlines. The very warm temperatures aloft will tend to
cap convective potential, especially on Thu, so will only carry
slight chance pops after 21Z Thu, with increasing pops (to 30%)
across inland areas on Friday ahead of a disturbance in the upper
flow. Lows in the 70s.

&&

.LONG TERM /FRIDAY NIGHT THROUGH TUESDAY/...
Typical mid-summer conditions are expected to continue through the
extended period. A weak trough will gradually drop into the Mid-
Atlantic and Northeast Saturday into early next week, with a
subtle surface boundary in vicinity of the Mid-Atlantic region.
Overall, this will result in daily chances (30-50%) of diurnally
driven showers/tstms Saturday through early next week. Forecast
highs are mainly in the low 90s Saturday and Sunday, with upper 80s
Monday and Tuesday. Lows will primarily be in the 70s.

&&

.AVIATION /18Z WEDNESDAY THROUGH MONDAY/...
A weak trough will remain over the region this afternoon and
evening. This will trigger a few showers/tstms across the area.
SBY will likely experience a tstm through 19z. Otherwise,
confidence is too low to forecast thunder at any given TAF site
thereafter. Sct-bkn cu ~5kft are expected this afternoon and
evening along with a SE wind of 8-12kt along the coast. The trough
will push offshore later tonight with partial clearing expected
toward morning. High pressure builds off the Southeast coast
Thursday with a lee-side trough developing over the Piedmont. This
will promote a SW wind of 8-12kt under a generally sunny sky with
sct afternoon cu. High pressure remains off the Southeast coast
Friday with a weak front dropping into the area Saturday through
early next week. This will bring a chc of afternoon/evening
showers/tstms.

&&

.MARINE...
High prs becomes anchored off the SE coast thru the wkend. S-SE
winds aob 15 kts becomes SW. Waves 1-2 ft with 2-3 ft seas.

&&

.AKQ WATCHES/WARNINGS/ADVISORIES...
MD...None.
NC...None.
VA...None.
MARINE...None.

&&

SYNOPSIS...JDM
NEAR TERM...JDM/TMG
SHORT TERM...JDM
LONG TERM...AJZ
AVIATION...AJZ
MARINE...MPR

Hazardous weather outlook, Jul 13, 4:16 PM EDT, 0 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>

In the hours before

Special weather statement, Jul 13, 2:42 PM EDT, 1 hour 34 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WAKEFIELD VA
242 PM EDT WED JUL 13 2016

MDZ022-131915-
WICOMICO-
242 PM EDT WED JUL 13 2016

...A STRONG THUNDERSTORM WILL AFFECT CENTRAL WICOMICO COUNTY...

AT 242 PM EDT...A STRONG THUNDERSTORM WAS LOCATED NEAR DELMAR...OR
NEAR SALISBURY...MOVING NORTHEAST AT 15 MPH.

WIND GUSTS IN EXCESS OF 40 MPH AND RAINFALL AMOUNTS OF UP TO 1 INCH
ARE POSSIBLE WITH THIS STORM.

LOCATIONS IMPACTED INCLUDE... SALISBURY...SALISBURY
UNIVERSITY...DELMAR...PARSONSBURG...PITTSVILLE... MELSON AND
CHESAPEAKE HEIGHTS.

STRONG WIND GUSTS ARE POSSIBLE WITH THIS STORM. THESE WIND GUSTS ARE
CAPABLE OF KNOCKING DOWN TREE LIMBS...SMALL OR WEAKENED TREES...AND
BLOWING AROUND TRASH CANS...POTTED PLANTS...LAWN FURNITURE AND OTHER
LIGHT OUTDOOR OBJECTS.

MOTORISTS SHOULD USE EXTRA CAUTION IN THE VICINITY OF THIS STORM. BE
PREPARED FOR RAPID CHANGES IN WEATHER AND ROAD CONDITIONS. HEAVY RAIN
COULD CAUSE PONDING OF WATER ON ROADS...AND POSSIBLE MINOR FLOODING
OF DITCHES AND POOR DRAINAGE AREAS.

THIS STORM 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 3832 7556 3835 7564 3846 7565 3845 7534
TIME...MOT...LOC 1842Z 217DEG 15KT 3841 7555

DEROSA

Special weather statement, Jul 13, 3:15 PM EDT, 1 hour 1 minute before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WAKEFIELD VA
315 PM EDT WED JUL 13 2016

MDZ022-131930-
WICOMICO-
315 PM EDT WED JUL 13 2016

...A STRONG THUNDERSTORM WILL AFFECT ...

AT 315 PM EDT...A STRONG THUNDERSTORM WAS LOCATED OVER DELMAR...OR
NEAR SALISBURY...MOVING NORTHEAST AT 10 MPH.

WIND GUSTS IN EXCESS OF 40 MPH AND HEAVY RAINFALL ARE POSSIBLE WITH
THIS STORM.

THIS STORM WILL REMAIN OVER MAINLY RURAL AREAS OF CENTRAL WICOMICO
COUNTY.

STRONG WIND GUSTS ARE POSSIBLE WITH THIS STORM. THESE WIND GUSTS ARE
CAPABLE OF KNOCKING DOWN TREE LIMBS...SMALL OR WEAKENED TREES...AND
BLOWING AROUND TRASH CANS...POTTED PLANTS...LAWN FURNITURE AND OTHER
LIGHT OUTDOOR OBJECTS.

MOTORISTS SHOULD USE EXTRA CAUTION IN THE VICINITY OF THIS STORM. BE
PREPARED FOR RAPID CHANGES IN WEATHER AND ROAD CONDITIONS. HEAVY RAIN
COULD CAUSE PONDING OF WATER ON ROADS...AND POSSIBLE MINOR FLOODING
OF DITCHES AND POOR DRAINAGE AREAS.

LAT...LON 3842 7553 3844 7556 3846 7555 3845 7548
      3845 7549
TIME...MOT...LOC 1915Z 207DEG 8KT 3844 7553

DEROSA

Special weather statement, Jul 13, 3:31 PM EDT, 45 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>

Special weather statement, Jul 13, 3:41 PM EDT, 35 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>

Special weather statement, Jul 13, 4:16 PM EDT, 0 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>

The office that day

Everything else NWS Wakefield, VA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 12, 8:13 PM EDT	Special Weather Statement	AKQ	Fluvanna, Louisa	47 min
Jul 12, 8:16 PM EDT	Special Weather Statement	AKQ	Mecklenburg	44 min
Jul 12, 8:55 PM EDT	Special Weather Statement	AKQ	Lunenburg	50 min
Jul 13, 4:03 PM EDT	Heat Advisory	AKQ	Accomack, Amelia, Brunswick, Caroline, Charles City, Chesterfield and 40 more	28 hr
Jul 13, 4:19 PM EDT	Special Weather Statement	AKQ	City of Virginia Beach	41 min
Jul 13, 4:56 PM EDT	Special Weather Statement	AKQ	Fluvanna	49 min
Jul 13, 5:24 PM EDT	Special Weather Statement	AKQ	Lunenburg, Mecklenburg, Nottoway, Prince Edward	36 min
Jul 13, 6:02 PM EDT	Special Weather Statement	AKQ	Amelia, Brunswick, Lunenburg, Mecklenburg, Nottoway	43 min
Jul 13, 6:40 PM EDT	Special Weather Statement	AKQ	Dinwiddie, City of Petersburg	50 min
Jul 13, 6:56 PM EDT	Special Weather Statement	AKQ	Currituck	64 min
Jul 13, 2:42 PM EDT	Special Weather Statement	AKQ	Wicomico	33 min
Jul 13, 3:15 PM EDT	Special Weather Statement	AKQ	Wicomico	15 min
Jul 13, 3:31 PM EDT	Special Weather Statement	AKQ	Caroline	59 min
Jul 13, 3:33 PM EDT	Areal Flood Advisory	AKQ	Dorchester	3 hr
Jul 13, 3:41 PM EDT	Special Weather Statement	AKQ	Dorchester	64 min
Jul 13, 4:30 PM EDT	Special Weather Statement	AKQ	Wicomico	60 min
Jul 13, 4:32 PM EDT	Special Weather Statement	AKQ	Dorchester	58 min
Jul 13, 4:43 PM EDT	Areal Flood Advisory	AKQ	Wicomico	3 hr
Jul 13, 5:32 PM EDT	Special Weather Statement	AKQ	Dorchester, Wicomico	58 min
Jul 13, 5:42 PM EDT	Areal Flood Advisory	AKQ	Dorchester, Wicomico	3 hr
Jul 13, 6:18 PM EDT	Special Weather Statement	AKQ	Wicomico	57 min
Jul 13, 7:24 PM EDT	Special Weather Statement	AKQ	Somerset	66 min

Nearby

Special Weather Statements in Maryland, 2016 Every special weather statement in 2016

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.