Alert archive / North Dakota / Special Weather Statements in 2020

Special Weather Statement, NWS Bismarck, ND

August 9, 2020McKenzie County, North Dakota

NWS Bismarck, ND issued this special weather statement at Aug 9, 2020, 12:33 AM CDT for McKenzie County, North Dakota. It was in force for 27 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
Aug 9, 2020, 12:33 AM CDT (05:33 UTC)
Expired
Aug 9, 2020, 1:00 AM CDT
In force
27 min
Issued by
NWS Bismarck, ND

County McKenzie County, ND

The radar

The Minot AFB radar (KMBX), 198 km from the middle of the area, began a volume at 05:36 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

Bismarck Municip, ND (KBIS), launched 00:00Z, 5.6 hours before the alert went out and 223 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, Bismarck Municip, ND at 00:00Z on 2020-08-09Temperature 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, Bismarck Municip, ND at 00:00Z on 2020-08-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 51 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
2499 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
51 m²/s²
0-3 km storm-relative helicity
187 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

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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 Bismarck, ND wrote its last area forecast discussion before this special weather statement went out at Aug 8, 9:00 PM CDT, 3 hours 33 minutes earlier.

Area forecast discussion, Aug 8, 9:00 PM CDT, 3 hours 33 minutes before
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  <meta name="viewport" content="width=device-width, initial-scale=1">
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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.
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      <p id="message2">
        Please try again in a few minutes.
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        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
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Hazardous weather outlook, Aug 8, 10:44 PM CDT, 1 hour 49 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.
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        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, Aug 8, 8:57 PM CDT, 3 hours 36 minutes before
Special Weather Statement
National Weather Service Bismarck ND
757 PM MDT Sat Aug 8 2020

NDZ043-090245-
Bowman ND-
757 PM MDT Sat Aug 8 2020

...SIGNIFICANT WEATHER ADVISORY FOR EASTERN BOWMAN COUNTY UNTIL 845
PM MDT...

At 756 PM MDT, a strong thunderstorm was located 7 miles northeast of
Table Mountain, or 16 miles southwest of Bowman, moving northeast at
25 mph.

Half inch hail and wind gusts to 40 mph will be possible with this
storm.

Locations impacted include...
Bowman.

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 4595 10343 4595 10367 4597 10371 4625 10347
      4605 10318 4594 10339
TIME...MOT...LOC 0156Z 225DEG 21KT 4598 10357

HARGROVE
Special weather statement, Aug 8, 9:41 PM CDT, 2 hours 52 minutes before
Special Weather Statement
National Weather Service Bismarck ND
841 PM MDT Sat Aug 8 2020

NDZ040-043-090315-
Slope ND-Bowman ND-
841 PM MDT Sat Aug 8 2020

...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN BOWMAN AND
SOUTHEASTERN SLOPE COUNTIES UNTIL 915 PM MDT...

At 841 PM MDT, a strong thunderstorm was located 7 miles northeast of
Bowman, moving northeast at 40 mph.

Half inch hail and wind gusts to 40 mph will be possible with this
storm.

Locations impacted include...
Buffalo Springs.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek shelter
inside a building or vehicle.

&&

LAT...LON 4628 10340 4651 10309 4633 10292 4629 10293
      4628 10293 4628 10299 4624 10300 4615 10328
TIME...MOT...LOC 0241Z 236DEG 33KT 4625 10328

HARGROVE
Special weather statement, Aug 9, 12:33 AM CDT, 0 minutes before
Special Weather Statement
National Weather Service Bismarck ND
1233 AM CDT Sun Aug 9 2020

NDZ017-090600-
McKenzie ND-
1233 AM CDT Sun Aug 9 2020

...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL MCKENZIE COUNTY UNTIL 100
AM CDT/MIDNIGHT MDT/...

At 1233 AM CDT/1133 PM MDT/, a strong thunderstorm was located 9
miles west of Theodore Roosevelt National Park North Unit, or 14
miles southwest of Watford City, moving northeast at 35 mph.

Nickel size hail and wind gusts to 40 mph will be possible with this
storm.

Locations impacted include...
Watford City and Theodore Roosevelt National Park North Unit.

LAT...LON 4787 10333 4780 10309 4759 10310 4748 10342
      4763 10363
TIME...MOT...LOC 0533Z 229DEG 29KT 4762 10346

ABELING

The office that day

Everything else NWS Bismarck, ND issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 8, 8:57 PM CDTSpecial Weather StatementBISBowman48 min
Aug 8, 9:04 PM CDTSevere Thunderstorm WarningBISBowman41 min
Aug 8, 9:41 PM CDTSpecial Weather StatementBISSlope34 min
Aug 9, 12:35 AM CDTSpecial Weather StatementBISMcKenzie25 min
Aug 9, 1:12 AM CDTSpecial Weather StatementBISMcKenzie33 min
Aug 9, 1:57 AM CDTSpecial Weather StatementBISMountrail33 min
Aug 9, 2:18 AM CDTSpecial Weather StatementBISMountrail42 min
Aug 9, 2:33 AM CDTSevere Thunderstorm WarningBISDunn, McLean, Mountrail34 min
Aug 9, 3:00 AM CDTSpecial Weather StatementBISMountrail30 min
Aug 9, 3:19 AM CDTSpecial Weather StatementBISBurke41 min
Aug 9, 5:13 AM CDTSpecial Weather StatementBISMcHenry, Pierce47 min
Aug 9, 5:47 AM CDTSevere Thunderstorm WarningBISMcHenry, Pierce43 min
Aug 9, 6:18 AM CDTSpecial Weather StatementBISRolette42 min
Aug 9, 8:45 AM CDTSpecial Weather StatementBISRolette30 min
Aug 9, 2:08 PM CDTTornado WarningBISLaMoure37 min
Aug 9, 3:23 PM CDTSpecial Weather StatementBISLaMoure37 min
Aug 9, 3:30 PM CDTSevere Thunderstorm WarningBISLaMoure30 min
Aug 9, 3:50 PM CDTSevere Thunderstorm WarningBISDickey20 min

Nearby

Special Weather Statements in North Dakota, 2020Every special weather statement in 2020

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.