Alert archive / Maine / Heat Advisories in 2021

Heat Advisory 1, NWS Caribou, ME

June 6, 2021Aroostook County, Penobscot County, Piscataquis County, Maine

NWS Caribou, ME issued this heat advisory at Jun 6, 2021, 2:33 PM EDT for Aroostook County, Penobscot County, Piscataquis County, Maine. It took effect at Jun 7, 2021, 12:00 PM EDT. It was in force for 6 hr.

The area

The counties it named.

The facts

Issued
Jun 6, 2021, 2:33 PM EDT (18:33 UTC)
In effect from
Jun 7, 2021, 12:00 PM EDT
Expired
Jun 7, 2021, 6:00 PM EDT
In force
6 hr
Issued by
NWS Caribou, ME

Counties Aroostook County, ME, Penobscot County, ME, Piscataquis County, ME

The radar

The Caribou radar (KCBW), 81 km from the middle of the area, began a volume at 18:37 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

Gray, ME (KGYX), launched 12:00Z, 6.6 hours before the alert went out and 256 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, Gray, ME at 12:00Z on 2021-06-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 68 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, Gray, ME at 12:00Z on 2021-06-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 53 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
68 J/kg
Mixed-layer CIN
-250 J/kg
Mixed-layer LCL
1358 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
53 m²/s²
0-3 km storm-relative helicity
61 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 heat advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Caribou, ME wrote its last area forecast discussion before this heat advisory went out at Jun 6, 11:31 AM EDT, 3 hours 2 minutes earlier.

Area forecast discussion, Jun 6, 11:31 AM EDT, 3 hours 2 minutes before
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Hazardous weather outlook, Jun 6, 3:41 AM EDT, 10 hours 52 minutes before
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  <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.
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The office that day

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

IssuedProductOfficeCountiesLasted
Jun 5, 8:09 PM EDTSpecial Weather StatementCARWashington36 min
Jun 6, 3:47 PM EDTSpecial Weather StatementCARPenobscot28 min
Jun 6, 4:25 PM EDTSpecial Weather StatementCARPenobscot50 min
Jun 6, 4:41 PM EDTSevere Thunderstorm WarningCARPenobscot, Piscataquis49 min
Jun 6, 5:30 PM EDTSpecial Weather StatementCARHancock30 min
Jun 6, 6:12 PM EDTSpecial Weather StatementCARWashington33 min

Nearby

Heat Advisories in Maine, 2021Every heat advisory in 2021

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.