Alert archive / Montana / Special Weather Statements in 2018

Special Weather Statement, NWS Great Falls, MT

June 7, 2018Beaverhead County, Montana

NWS Great Falls, MT issued this special weather statement at Jun 7, 2018, 2:17 PM MDT for Beaverhead County, Montana. It was in force for 43 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: Jun 7, 2018, 2:17 PM MDT (20:17 UTC)
Expired: Jun 7, 2018, 3:00 PM MDT
In force: 43 min
Issued by: NWS Great Falls, MT

County Beaverhead County, MT

The radar

The Missoula radar (KMSX), 211 km from the middle of the area, began a volume at 20:21 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

Great_falls, MT (KTFX), launched 12:00Z, 8.3 hours before the alert went out and 306 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: 16 J/kg
Mixed-layer CIN: -216 J/kg
Mixed-layer LCL: 1783 m above ground
0-6 km bulk shear: 19 kt
0-1 km storm-relative helicity: 29 m²/s²
0-3 km storm-relative helicity: -35 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 Great Falls, MT wrote its last area forecast discussion before this special weather statement went out at Jun 7, 11:44 AM MDT, 2 hours 33 minutes earlier.

Area forecast discussion, Jun 7, 11:44 AM MDT, 2 hours 33 minutes before

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In the hours before

Special weather statement, Jun 7, 12:55 PM MDT, 1 hour 22 minutes before

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Local storm report, Jun 7, 1:14 PM MDT, 1 hour 3 minutes before

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Special weather statement, Jun 7, 1:43 PM MDT, 34 minutes before

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Special weather statement, Jun 7, 1:43 PM MDT, 34 minutes before

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Special weather statement, Jun 7, 2:14 PM MDT, 3 minutes before

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Special weather statement, Jun 7, 2:17 PM MDT, 0 minutes before

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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 6, 6:34 PM MDT	Special Weather Statement	TFX	Judith Basin	26 min
Jun 6, 6:37 PM MDT	Special Weather Statement	TFX	Beaverhead	23 min
Jun 6, 6:56 PM MDT	Severe Thunderstorm Warning	TFX	Fergus, Judith Basin	34 min
Jun 6, 6:59 PM MDT	Special Weather Statement	TFX	Judith Basin	31 min
Jun 6, 7:30 PM MDT	Special Weather Statement	TFX	Chouteau	30 min
Jun 6, 7:33 PM MDT	Special Weather Statement	TFX	Judith Basin	27 min
Jun 6, 7:38 PM MDT	Special Weather Statement	TFX	Blaine	37 min
Jun 6, 7:57 PM MDT	Special Weather Statement	TFX	Chouteau	33 min
Jun 6, 8:00 PM MDT	Special Weather Statement	TFX	Fergus	30 min
Jun 6, 8:11 PM MDT	Special Weather Statement	TFX	Fergus	34 min
Jun 6, 8:18 PM MDT	Special Weather Statement	TFX	Blaine	42 min
Jun 6, 8:30 PM MDT	Special Weather Statement	TFX	Chouteau	30 min
Jun 6, 8:34 PM MDT	Special Weather Statement	TFX	Fergus	26 min
Jun 6, 8:48 PM MDT	Areal Flood Advisory	TFX	Blaine	3 hr
Jun 6, 9:04 PM MDT	Special Weather Statement	TFX	Chouteau	26 min
Jun 6, 9:16 PM MDT	Special Weather Statement	TFX	Blaine	29 min
Jun 6, 9:23 PM MDT	Special Weather Statement	TFX	Judith Basin	37 min
Jun 6, 9:24 PM MDT	Special Weather Statement	TFX	Fergus	36 min
Jun 6, 9:41 PM MDT	Special Weather Statement	TFX	Blaine	34 min
Jun 6, 9:51 PM MDT	Special Weather Statement	TFX	Blaine	24 min
Jun 6, 10:00 PM MDT	Special Weather Statement	TFX	Silver Bow	45 min
Jun 6, 10:15 PM MDT	Special Weather Statement	TFX	Blaine	15 min
Jun 6, 10:20 PM MDT	Special Weather Statement	TFX	Judith Basin	25 min
Jun 6, 10:32 PM MDT	Special Weather Statement	TFX	Blaine	28 min
Jun 7, 1:17 AM MDT	Special Weather Statement	TFX	Lewis and Clark	43 min
Jun 7, 1:19 AM MDT	Special Weather Statement	TFX	Broadwater	26 min
Jun 7, 1:45 AM MDT	Special Weather Statement	TFX	Meagher	45 min
Jun 7, 2:19 AM MDT	Special Weather Statement	TFX	Meagher	41 min
Jun 7, 2:55 AM MDT	Special Weather Statement	TFX	Cascade	35 min
Jun 7, 9:33 AM MDT	Special Weather Statement	TFX	Fergus	57 min
Jun 7, 9:59 AM MDT	Severe Thunderstorm Warning	TFX	Fergus	46 min
Jun 7, 10:15 AM MDT	Areal Flood Warning	TFX	Fergus	2 hr
Jun 7, 11:04 AM MDT	Areal Flood Advisory	TFX	Fergus, Judith Basin	116 min
Jun 7, 11:56 AM MDT	Special Weather Statement	TFX	Blaine	64 min
Jun 7, 12:10 PM MDT	Flash Flood Warning	TFX	Blaine, Chouteau, Hill	3 hr
Jun 7, 12:55 PM MDT	Special Weather Statement	TFX	Blaine, Hill	50 min
Jun 7, 1:43 PM MDT	Special Weather Statement	TFX	Blaine	62 min
Jun 7, 2:14 PM MDT	Special Weather Statement	TFX	Silver Bow	46 min
Jun 7, 2:31 PM MDT	Special Weather Statement	TFX	Jefferson	29 min
Jun 7, 2:47 PM MDT	Special Weather Statement	TFX	Madison	28 min
Jun 7, 2:55 PM MDT	Special Weather Statement	TFX	Broadwater	35 min
Jun 7, 2:57 PM MDT	Special Weather Statement	TFX	Silver Bow	33 min
Jun 7, 3:05 PM MDT	Special Weather Statement	TFX	Toole	25 min
Jun 7, 3:12 PM MDT	Special Weather Statement	TFX	Beaverhead	33 min
Jun 7, 3:28 PM MDT	Special Weather Statement	TFX	Toole	32 min
Jun 7, 3:42 PM MDT	Special Weather Statement	TFX	Beaverhead	33 min
Jun 7, 3:49 PM MDT	Special Weather Statement	TFX	Broadwater	26 min
Jun 7, 3:50 PM MDT	Special Weather Statement	TFX	Lewis and Clark	40 min
Jun 7, 3:58 PM MDT	Special Weather Statement	TFX	Toole	47 min
Jun 7, 4:09 PM MDT	Special Weather Statement	TFX	Teton	36 min
Jun 7, 4:13 PM MDT	Special Weather Statement	TFX	Beaverhead, Madison	32 min
Jun 7, 4:25 PM MDT	Special Weather Statement	TFX	Lewis and Clark	35 min
Jun 7, 4:28 PM MDT	Severe Thunderstorm Warning	TFX	Liberty, Toole	32 min
Jun 7, 4:56 PM MDT	Special Weather Statement	TFX	Madison	34 min
Jun 7, 4:58 PM MDT	Severe Thunderstorm Warning	TFX	Liberty, Toole	32 min
Jun 7, 4:59 PM MDT	Special Weather Statement	TFX	Jefferson	31 min
Jun 7, 5:01 PM MDT	Special Weather Statement	TFX	Lewis and Clark	29 min
Jun 7, 5:33 PM MDT	Special Weather Statement	TFX	Liberty	27 min
Jun 7, 5:58 PM MDT	Special Weather Statement	TFX	Liberty	47 min

Nearby

Special Weather Statements in Montana, 2018 Every special weather statement in 2018

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.