Alert archive / Montana / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 14, NWS Great Falls, MT

June 15, 1995Lewis and Clark County, Teton County, Montana

NWS Great Falls, MT issued this severe thunderstorm warning at Jun 15, 1995, 5:05 PM MDT for Lewis and Clark County, Teton County, Montana. It was in force for 55 min.

The area

The counties it named.

The facts

Issued: Jun 15, 1995, 5:05 PM MDT (23:05 UTC)
Expired: Jun 15, 1995, 6:00 PM MDT
In force: 55 min
Issued by: NWS Great Falls, MT
Area: Whole counties

Counties Lewis and Clark County, MT, Teton County, MT

The radar

The Great Falls radar (KTFX), 70 km from the middle of the area, began a volume at 23:07 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

Spokane, WA (KOTX), launched 12:00Z, 11.1 hours before the alert went out and 307 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: 10 J/kg
Mixed-layer CIN: -100 J/kg
Mixed-layer LCL: 773 m above ground
0-6 km bulk shear: 47 kt
0-1 km storm-relative helicity: 84 m²/s²
0-3 km storm-relative helicity: 148 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

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, Jun 15, 2:13 PM MDT, 2 hours 52 minutes before

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Special weather statement, Jun 15, 3:10 PM MDT, 1 hour 55 minutes before

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Special weather statement, Jun 15, 3:14 PM MDT, 1 hour 51 minutes before

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Special weather statement, Jun 15, 3:17 PM MDT, 1 hour 48 minutes before

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Special weather statement, Jun 15, 4:12 PM MDT, 53 minutes before

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Special weather statement, Jun 15, 4:15 PM MDT, 50 minutes before

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        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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The office that day

Everything else NWS Great Falls, MT issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 14, 9:31 PM MDT	Severe Thunderstorm Warning	TFX	Blaine, Hill	44 min
Jun 14, 10:03 PM MDT	Severe Thunderstorm Warning	TFX	Blaine	42 min

Nearby

Severe Thunderstorm Warnings in Montana, 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; radar from the NEXRAD Level II archive.