Alert archive / Maine / Wind Advisories in 2023

Wind Advisory 7, NWS Gray, ME

April 30, 20238 counties in Maine; Rockingham County, New Hampshire

NWS Gray, ME issued this wind advisory at Apr 30, 2023, 3:25 AM EDT for 8 counties in Maine; Rockingham County, New Hampshire. It took effect at Apr 30, 2023, 6:00 PM EDT. It was in force for 14 hr.

The area

The counties it named.

The facts

Issued
Apr 30, 2023, 3:25 AM EDT (07:25 UTC)
In effect from
Apr 30, 2023, 6:00 PM EDT
Expired
May 1, 2023, 8:00 AM EDT
In force
14 hr
Issued by
NWS Gray, ME

Counties Androscoggin County, ME, Cumberland County, ME, Kennebec County, ME, Knox County, ME, Lincoln County, ME, Sagadahoc County, ME, Waldo County, ME, York County, ME, Rockingham County, NH

The radar

The Portland,ME radar (KGYX), 24 km from the middle of the area, began a volume at 07:26 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

Caribou, ME (KCAR), launched 00:00Z, 7.4 hours before the alert went out and 362 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, Caribou, ME at 00:00Z on 2023-04-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3 joules per kilogram.LCLLFCEL10008507005003002001001 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, Caribou, ME at 00:00Z on 2023-04-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 9 square meters per square second.193958Sfc1 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
3 J/kg
Mixed-layer CIN
-25 J/kg
Mixed-layer LCL
2057 m above ground
0-6 km bulk shear
11 kt
0-1 km storm-relative helicity
9 m²/s²
0-3 km storm-relative helicity
16 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this wind advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Gray, ME wrote its last area forecast discussion before this wind advisory went out at Apr 29, 10:40 PM EDT, 4 hours 45 minutes earlier.

Area forecast discussion, Apr 29, 10:40 PM EDT, 4 hours 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>

The office that day

Everything else NWS Gray, ME issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 30, 3:30 AM EDTStorm WarningGYX27 hr
Apr 30, 12:01 PM EDTRiver Flood WarningGYXOxford34 hr
Apr 30, 12:01 PM EDTRiver Flood WarningGYXCumberland, Oxford46 hr
Apr 30, 12:01 PM EDTRiver Flood WarningGYXCumberland42 hr
Apr 30, 12:01 PM EDTRiver Flood WarningGYXBelknap, Merrimack4 days
Apr 30, 12:01 PM EDTRiver Flood WarningGYXGrafton27 hr
Apr 30, 12:01 PM EDTRiver Flood WarningGYXBelknap, Grafton24 hr

Nearby

Wind Advisories in Maine, 2023Wind Advisories in New Hampshire, 2023Every wind advisory in 2023

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.