Alert archive / North Dakota / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 121, NWS Bismarck, ND

August 18, 1995McHenry County, North Dakota

NWS Bismarck, ND issued this severe thunderstorm warning at Aug 18, 1995, 6:03 AM CDT for McHenry County, North Dakota. It was in force for 42 min.

The area

The counties it named.

The facts

Issued: Aug 18, 1995, 6:03 AM CDT (11:03 UTC)
Expired: Aug 18, 1995, 6:45 AM CDT
In force: 42 min
Issued by: NWS Bismarck, ND
Area: Whole counties

County McHenry County, ND

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 00:00Z, 11.1 hours before the alert went out and 163 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 4552 J/kg
Mixed-layer CIN: -32 J/kg
Mixed-layer LCL: 1633 m above ground
0-6 km bulk shear: 22 kt
0-1 km storm-relative helicity: 93 m²/s²
0-3 km storm-relative helicity: 146 m²/s²
Significant tornado parameter: 0.9
Supercell composite: 16.4

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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.

In the hours before

Special weather statement, Aug 18, 1:02 AM CDT, 5 hours 1 minute before

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Local storm report, Aug 18, 5:06 AM CDT, 57 minutes before

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Local storm report, Aug 18, 5:07 AM CDT, 56 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 17, 8:08 PM CDT	Severe Thunderstorm Warning	BIS	McLean	52 min
Aug 17, 9:05 PM CDT	Flash Flood Warning	BIS	McLean	55 min
Aug 17, 9:05 PM CDT	Tornado Warning	BIS	McLean	55 min
Aug 18, 3:01 AM CDT	Severe Thunderstorm Warning	BIS	McKenzie	59 min
Aug 18, 4:27 AM CDT	Severe Thunderstorm Warning	BIS	Dunn	48 min
Aug 18, 4:44 AM CDT	Severe Thunderstorm Warning	BIS	Mountrail	31 min
Aug 18, 5:17 AM CDT	Severe Thunderstorm Warning	BIS	Ward	43 min
Aug 18, 6:53 AM CDT	Severe Thunderstorm Warning	BIS	Bottineau, Rolette	29 min
Aug 18, 7:22 AM CDT	Severe Thunderstorm Warning	BIS	Pierce, Rolette	38 min
Aug 18, 8:31 AM CDT	Severe Thunderstorm Warning	BIS	Ramsey	44 min

Nearby

Severe Thunderstorm Warnings in North Dakota, 1995 Every severe thunderstorm warning in 1995

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.