Alert archive / Montana / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 96, NWS Glasgow, MT

July 8, 2000Wibaux County, Montana

NWS Glasgow, MT issued this severe thunderstorm warning at Jul 8, 2000, 7:55 AM MDT for Wibaux County, Montana. It was in force for 65 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: Jul 8, 2000, 7:55 AM MDT (13:55 UTC)
Expired: Jul 8, 2000, 9:00 AM MDT
In force: 65 min
Issued by: NWS Glasgow, MT
Area: Whole counties; the outline is the Mesonet’s reconstruction

County Wibaux County, MT

What was reported inside it

Time	Report	Where	Remark
Jul 8, 8:04 AM MDT	Hail 1.75	Wibaux, MT

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The nearest sounding before it

Glasgow Intl Airport, MT (KGGW), launched 12:00Z, 1.9 hours before the alert went out and 225 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: 13 J/kg
Mixed-layer CIN: -251 J/kg
Mixed-layer LCL: 1607 m above ground
0-6 km bulk shear: 45 kt
0-1 km storm-relative helicity: -35 m²/s²
0-3 km storm-relative helicity: -27 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.

NWS Glasgow, MT wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 8, 2:45 AM MDT, 5 hours 10 minutes earlier.

Area forecast discussion, Jul 8, 2:45 AM MDT, 5 hours 10 minutes before

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In the hours before

Local storm report, Jul 8, 2:39 AM MDT, 5 hours 16 minutes before

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Special weather statement, Jul 8, 3:12 AM MDT, 4 hours 43 minutes before

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Local storm report, Jul 8, 5:44 AM MDT, 2 hours 11 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 7, 8:26 PM MDT	Severe Thunderstorm Warning	GGW	Garfield	64 min
Jul 7, 10:02 PM MDT	Severe Thunderstorm Warning	GGW	Garfield	58 min
Jul 7, 10:06 PM MDT	Severe Thunderstorm Warning	GGW	Prairie	69 min
Jul 7, 11:19 PM MDT	Severe Thunderstorm Warning	GGW	Prairie	56 min
Jul 7, 11:41 PM MDT	Severe Thunderstorm Warning	GGW	Dawson	64 min
Jul 8, 12:46 AM MDT	Severe Thunderstorm Warning	GGW	Dawson	59 min
Jul 8, 1:47 AM MDT	Severe Thunderstorm Warning	GGW	Dawson	58 min

Nearby

Severe Thunderstorm Warnings in Montana, 2000 Every severe thunderstorm warning in 2000

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.