Alert archive / Maine / Severe Thunderstorm Warnings in 2022

Severe Thunderstorm Warning 2, NWS Caribou, ME

May 21, 2022Aroostook County, Maine

NWS Caribou, ME issued this severe thunderstorm warning at May 21, 2022, 4:12 PM EDT for Aroostook County, Maine. It was in force for 48 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
May 21, 2022, 4:12 PM EDT (20:12 UTC)
Expired
May 21, 2022, 5:00 PM EDT
In force
48 min
Issued by
NWS Caribou, ME
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

County Aroostook County, ME

The radar

The Caribou radar (KCBW), 92 km from the middle of the area, began a volume at 20:14 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
May 21, 3:18 PM EDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Gray, ME (KGYX), launched 12:00Z, 8.2 hours before the alert went out and 334 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 2022-05-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2022-05-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 169 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
408 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
169 m²/s²
0-3 km storm-relative helicity
219 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 severe thunderstorm warning 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 severe thunderstorm warning went out at May 21, 12:47 PM EDT, 3 hours 25 minutes earlier.

Area forecast discussion, May 21, 12:47 PM EDT, 3 hours 25 minutes before
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Hazardous weather outlook, May 21, 3:21 PM EDT, 51 minutes before
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</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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In the hours before

Special weather statement, May 21, 3:07 PM EDT, 1 hour 5 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 Caribou, ME issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 21, 6:48 AM EDTSpecial Weather StatementCAR57 min
May 21, 7:26 AM EDTSpecial Weather StatementCAR94 min
May 21, 3:07 PM EDTSpecial Weather StatementCAR38 min
May 21, 3:28 PM EDTSevere Thunderstorm Warning Considerable damage threatCARAroostook47 min
May 21, 4:20 PM EDTSpecial Weather StatementCARAroostook25 min
May 21, 4:31 PM EDTSpecial Weather StatementCAR29 min
May 21, 4:55 PM EDTSpecial Weather StatementCAR35 min
May 21, 4:56 PM EDTSevere Thunderstorm WarningCARAroostook23 min
May 21, 5:08 PM EDTSpecial Weather StatementCAR37 min
May 21, 5:18 PM EDTSpecial Weather StatementCARAroostook27 min
May 21, 5:50 PM EDTSpecial Weather StatementCARAroostook25 min
May 21, 5:54 PM EDTSpecial Weather StatementCAR36 min
May 21, 6:07 PM EDTSevere Thunderstorm WarningCARPiscataquis, Somerset38 min
May 21, 6:40 PM EDTSpecial Weather StatementCAR50 min
May 21, 7:03 PM EDTSpecial Weather StatementCARPiscataquis42 min
May 21, 7:24 PM EDTSpecial Weather StatementCARAroostook36 min
May 21, 7:30 PM EDTSevere Thunderstorm WarningCARPiscataquis45 min
May 21, 7:42 PM EDTSpecial Weather StatementCARPiscataquis33 min

Nearby

Severe Thunderstorm Warnings in Maine, 2022Every severe thunderstorm warning in 2022

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.