Alert archive / North Dakota / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 130, NWS Bismarck, ND

July 31, 2019Mountrail County, North Dakota

NWS Bismarck, ND issued this severe thunderstorm warning at Jul 31, 2019, 7:03 PM CDT for Mountrail County, North Dakota. It was in force for 42 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
Jul 31, 2019, 7:03 PM CDT (00:03 UTC)
Expired
Jul 31, 2019, 7:45 PM CDT
In force
42 min
Issued by
NWS Bismarck, ND
Area
Storm-based polygon
Hail
1.25 in
Wind
60.0 mph

County Mountrail County, ND

The radar

The Minot AFB radar (KMBX), 112 km from the middle of the area, began a volume at 00:03 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
Jul 31, 4:51 PM CDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 00:00Z, 0.1 hours before the alert went out and 202 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 2019-08-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1631 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, Bismarck Municip, ND at 00:00Z on 2019-08-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 60 square meters per square second.1939587897Sfc1 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
1631 J/kg
Mixed-layer CIN
-209 J/kg
Mixed-layer LCL
1167 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
60 m²/s²
0-3 km storm-relative helicity
81 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.7

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 Bismarck, ND wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 31, 5:53 PM CDT, 1 hour 10 minutes earlier.

Area forecast discussion, Jul 31, 5:53 PM CDT, 1 hour 10 minutes before
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Hazardous weather outlook, Jul 31, 5:40 PM CDT, 1 hour 23 minutes before
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In the hours before

Special weather statement, Jul 31, 4:44 PM CDT, 2 hours 19 minutes before
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Special weather statement, Jul 31, 4:51 PM CDT, 2 hours 12 minutes before
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Special weather statement, Jul 31, 5:31 PM CDT, 1 hour 32 minutes before
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Special weather statement, Jul 31, 5:34 PM CDT, 1 hour 29 minutes before
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Local storm report, Jul 31, 6:39 PM CDT, 24 minutes before
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Local storm report, Jul 31, 6:55 PM CDT, 8 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jul 31, 7:12 PM CDTSpecial Weather StatementBISBottineau33 min
Jul 31, 7:17 PM CDTAreal Flood AdvisoryBISDunn3 hr
Jul 31, 7:43 PM CDTSevere Thunderstorm WarningBISMountrail, Renville, Ward47 min
Jul 31, 8:02 PM CDTSevere Thunderstorm WarningBISDunn, Stark58 min
Jul 31, 8:24 PM CDTSevere Thunderstorm WarningBISBottineau, Renville, Ward51 min
Jul 31, 8:39 PM CDTSevere Thunderstorm WarningBISMountrail, Renville, Ward66 min
Jul 31, 9:03 PM CDTSevere Thunderstorm WarningBISRenville, Ward42 min
Aug 1, 12:26 PM CDTSpecial Weather StatementBISMcKenzie34 min
Aug 1, 12:43 PM CDTSevere Thunderstorm WarningBISMcKenzie, Williams47 min
Aug 1, 1:10 PM CDTSevere Thunderstorm WarningBISMcKenzie, Williams50 min
Aug 1, 1:34 PM CDTSevere Thunderstorm WarningBISMcKenzie, Williams28 min
Aug 1, 1:59 PM CDTSevere Thunderstorm WarningBISMcKenzie, Williams46 min
Aug 1, 2:56 PM CDTSevere Thunderstorm WarningBISMcKenzie64 min
Aug 1, 3:31 PM CDTSevere Thunderstorm WarningBISDunn, McKenzie44 min
Aug 1, 3:56 PM CDTSevere Thunderstorm WarningBISDunn, McKenzie, McLean, Mountrail64 min
Aug 1, 4:54 PM CDTSevere Thunderstorm WarningBISMcLean51 min
Aug 1, 6:38 PM CDTSpecial Weather StatementBISOliver22 min

Nearby

Severe Thunderstorm Warnings in North Dakota, 2019Every severe thunderstorm warning in 2019

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.