Severe Thunderstorm Warning 18, NWS Gray, ME

Area Forecast Discussion
National Weather Service Gray ME
354 PM EDT Sun May 22 2022

.SYNOPSIS...
Heat and humidity linger through this evening away from the
coast before a cold front brings cooler and drier conditions
tonight. This cold front will bring the threat for severe
thunderstorms this afternoon and evening with the main threats
being large hail, damaging winds, and torrential downpours. High
pressure builds in behind the front Monday bringing fair
weather through Wednesday with temperatures closer to normal and
much lower humidity levels. A frontal system will approach
towards the end of the work week for unsettled conditions
possible Thursday and Friday.

&&

.NEAR TERM /UNTIL 6 AM MONDAY MORNING/...
Both the heat and thunderstorm threat are evolving about as
expected this afternoon. A few strong thunderstorms have already
developed so far this afternoon, but more activity is expected
to initiate over the next few hours. Low level lapse rates have
become unstable away from the coastline, but at the same time
mid level lapse rates have become less unstable than earlier in
the day. This is confirmed by CAR's 18z sounding. With this
changing environment, some poorly organized clusters of storms
are expected, with the threat of large hail and damaging winds
continuing. With DCAPE values approaching 1000 J/kg, wind
continues to appear to be the most widespread threat from these
storms. The SPC has issued a severe thunderstorm watch through
10PM this evening away from the coastline for these conditions.

Storms are expected to develop and strengthen over the next few
hours, and then gradually weaken through the evening hours as
they continue moving eastward this evening. Showers and possibly
a few strong thunderstorms arrive at the coast last. The cold
front clears the area and brings cooler and drier air in
overnight tonight.

&&

.SHORT TERM /6 AM MONDAY MORNING THROUGH MONDAY NIGHT/...
More seasonable temperatures return tomorrow with drier air and
mainly sunny skies. Offshore winds help to bring some coastal
areas warmer afternoon highs than they've seen the last couple
of days. A large ridge of Canadian high pressure begins building
in tomorrow through tomorrow night. Under the influence of the
high, temperatures will likely cool into the 30s and 40s
tomorrow night across the area.

&&

.LONG TERM /TUESDAY THROUGH SUNDAY/...
No major changes to the long term forecast. High pressure
builds in early to midweek, then a cold front brings an
increased chance of POPs by Thursday. A trough arrives behind
the front with below normal temperatures likely for the first
half of the weekend.

&&

.AVIATION /19Z SUNDAY THROUGH FRIDAY/...
Short Term...Some marine fog and stratus continues at RKD.
Elsewhere, VFR conditions are expected through this afternoon
and evening. Interior terminals likely see a few thunderstorms
this evening, starting first across western and northern
terminals, with some heavier rain showers arriving at the
coastal terminals later this evening. VFR conditions are then
expected late tonight through tomorrow night as drier air
returns to the area.

Long Term...Generally VFR conditions are expected early to
midweek under an area of high pressure. Some morning valley fog
is possible across interior terminals. A cold front then brings
an increased chance of showers late in the week. Clearing is
expected by early next weekend.

&&

.MARINE...
Short Term...Conditions are expected to remain below SCA
conditions, but a passing cold front may bring some
thunderstorms and gusty winds this evening. Conditions clear
later tonight as high pressure builds in.

Long Term...High pressure brings tranquil conditions through
midweek, then an approaching cold front likely brings SCA
conditions in southwesterly flow ahead of the front by Thursday.

&&

.GYX WATCHES/WARNINGS/ADVISORIES...
ME...None.
NH...Heat Advisory until 8 PM EDT this evening for NHZ008-011>013-
     015.
MARINE...None.

&&

NEAR TERM...Clair
SHORT TERM...Clair
LONG TERM...Clair

Hazardous Weather Outlook
National Weather Service Gray ME
1045 AM EDT Sun May 22 2022

NHZ008-011>013-015-231445-
Merrimack-Cheshire-Eastern Hillsborough-Interior Rockingham-
Western And Central Hillsborough-
1045 AM EDT Sun May 22 2022

...HEAT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING...

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

.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.

   Heat Advisory.

Despite the hot weather, water temperatures remain cold.

Afternoon thunderstorms are possible today. Some of these storms may
be strong to severe, with large hail and damaging winds the most
likely hazard.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

Hazardous weather is not expected at this time.

.SPOTTER INFORMATION STATEMENT...

Weather spotters are encouraged to report significant weather
conditions according to Standard Operating Procedures.

MEZ014-018>028-NHZ014-231445-
Southern Somerset-Interior York-Central Interior Cumberland-
Androscoggin-Kennebec-Interior Waldo-Coastal York-Coastal Cumberland-
Sagadahoc-Lincoln-Knox-Coastal Waldo-Coastal Rockingham-
1045 AM EDT Sun May 22 2022

This Hazardous Weather Outlook is for Maine, south central Maine,
southwest Maine and southern New Hampshire.

.DAY ONE...Today and tonight.

Despite the hot weather, water temperatures remain cold.

Afternoon thunderstorms are possible today. Some of these storms may
be strong to severe, with large hail and damaging winds the most
likely hazard.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

Hazardous weather is not expected at this time.

.SPOTTER INFORMATION STATEMENT...

Weather spotters are encouraged to report significant weather
conditions according to Standard Operating Procedures.

MEZ007>009-012-013-033-NHZ001>007-009-010-231445-
Northern Oxford-Northern Franklin-Central Somerset-Southern Oxford-
Southern Franklin-Interior Cumberland Highlands-Northern Coos-
Southern Coos-Northern Grafton-Northern Carroll-Southern Grafton-
Southern Carroll-Sullivan-Belknap-Strafford-
1045 AM EDT Sun May 22 2022

This Hazardous Weather Outlook is for west central Maine, western
Maine, central New Hampshire and northern New Hampshire.

.DAY ONE...Today and tonight.

Despite the hot weather, water temperatures remain cold.

Afternoon thunderstorms are possible today. Some of these storms may
be strong to severe, with large hail and damaging winds the most
likely hazard.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

Hazardous weather is not expected at this time.

.SPOTTER INFORMATION STATEMENT...

Weather spotters are encouraged to report significant weather
conditions according to Standard Operating Procedures.

ANZ150>154-231445-
Coastal Waters from Stonington, ME to Port Clyde, ME out 25 NM-
Penobscot Bay-
Coastal Waters from Port Clyde, ME to Cape Elizabeth, ME out 25 NM-
Casco Bay-
Coastal Waters from Cape Elizabeth, ME to Merrimack River, MA out
25 NM-
1045 AM EDT Sun May 22 2022

This Hazardous Weather Outlook is for Atlantic coastal waters.

.DAY ONE...Today and tonight.

Areas of dense fog are expected over the coastal waters through the
morning.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

Hazardous weather is not expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

<!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>

<!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>

<!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>

<!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>

<!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>

<!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>