Alert archive / Wyoming / Special Weather Statements in 2012

Special Weather Statement, NWS Cheyenne, WY

June 6, 2012Laramie County, Wyoming

NWS Cheyenne, WY issued this special weather statement at Jun 6, 2012, 10:45 PM MDT for Laramie County, Wyoming. It was in force for 60 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 6, 2012, 10:45 PM MDT (04:45 UTC)
Expired: Jun 6, 2012, 11:45 PM MDT
In force: 60 min
Issued by: NWS Cheyenne, WY

County Laramie County, WY

The radar

The Cheyenne radar (KCYS), 30 km from the middle of the area, began a volume at 04:47 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

Denver, CO (KDNR), launched 00:00Z, 4.8 hours before the alert went out and 207 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: 859 J/kg
Mixed-layer CIN: -42 J/kg
Mixed-layer LCL: 2447 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: 2 m²/s²
0-3 km storm-relative helicity: 155 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 3.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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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 Cheyenne, WY wrote its last area forecast discussion before this special weather statement went out at Jun 6, 9:34 PM MDT, 1 hour 11 minutes earlier.

Area forecast discussion, Jun 6, 9:34 PM MDT, 1 hour 11 minutes before

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Hazardous weather outlook, Jun 6, 9:29 PM MDT, 1 hour 16 minutes before

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In the hours before

Local storm report, Jun 6, 8:19 PM MDT, 2 hours 26 minutes before

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Local storm report, Jun 6, 8:49 PM MDT, 1 hour 56 minutes before

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Special weather statement, Jun 6, 8:53 PM MDT, 1 hour 52 minutes before

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Special weather statement, Jun 6, 8:54 PM MDT, 1 hour 51 minutes before

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Local storm report, Jun 6, 9:24 PM MDT, 1 hour 21 minutes before

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Special weather statement, Jun 6, 10:45 PM MDT, 0 minutes before

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The office that day

Everything else NWS Cheyenne, WY issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 6, 6:01 PM MDT	Special Weather Statement	CYS	Albany	44 min
Jun 6, 6:17 PM MDT	Severe Thunderstorm Warning	CYS	Laramie	58 min
Jun 6, 6:49 PM MDT	Special Weather Statement	CYS	Platte	56 min
Jun 6, 6:51 PM MDT	Special Weather Statement	CYS	Laramie	54 min
Jun 6, 7:48 PM MDT	Special Weather Statement	CYS	Goshen	57 min
Jun 6, 7:52 PM MDT	Special Weather Statement	CYS	Laramie	53 min
Jun 6, 8:53 PM MDT	Special Weather Statement	CYS	Laramie	67 min
Jun 6, 8:54 PM MDT	Special Weather Statement	CYS	Goshen	51 min
Jun 6, 10:48 PM MDT	Areal Flood Advisory	CYS	Goshen, Laramie	3 hr
Jun 6, 11:25 PM MDT	Flash Flood Warning	CYS	Laramie	2 hr
Jun 7, 9:45 AM MDT	Special Weather Statement	CYS	Laramie	90 min
Jun 7, 11:07 AM MDT	Special Weather Statement	CYS	Albany	53 min
Jun 7, 12:00 PM MDT	Flash Flood Watch	CYS	Goshen, Laramie	9 hr
Jun 7, 12:11 PM MDT	Special Weather Statement	CYS	Converse	64 min
Jun 7, 12:43 PM MDT	Special Weather Statement	CYS	Niobrara	47 min
Jun 7, 2:10 PM MDT	Severe Thunderstorm Warning	CYS	Albany, Converse, Platte	65 min
Jun 7, 2:30 PM MDT	Severe Thunderstorm Warning	CYS	Converse	46 min
Jun 7, 2:49 PM MDT	Special Weather Statement	CYS	Laramie	56 min
Jun 7, 2:51 PM MDT	Severe Thunderstorm Warning	CYS	Goshen, Platte	54 min
Jun 7, 2:54 PM MDT	Tornado Warning	CYS	Platte	51 min
Jun 7, 3:05 PM MDT	Severe Thunderstorm Warning	CYS	Laramie	55 min
Jun 7, 3:22 PM MDT	Special Weather Statement	CYS	Laramie	38 min
Jun 7, 3:44 PM MDT	Tornado Warning	CYS	Goshen, Platte	46 min
Jun 7, 3:58 PM MDT	Special Weather Statement	CYS	Laramie	47 min
Jun 7, 4:00 PM MDT	Special Weather Statement	CYS	Laramie	45 min
Jun 7, 4:15 PM MDT	Severe Thunderstorm Warning	CYS	Goshen, Laramie	45 min
Jun 7, 4:22 PM MDT	Severe Thunderstorm Warning	CYS	Laramie	38 min
Jun 7, 4:29 PM MDT	Tornado Warning	CYS	Laramie	46 min
Jun 7, 4:29 PM MDT	Tornado Warning	CYS	Goshen, Platte	31 min
Jun 7, 4:52 PM MDT	Severe Thunderstorm Warning	CYS	Goshen, Laramie, Platte	53 min
Jun 7, 4:59 PM MDT	Severe Thunderstorm Warning	CYS	Laramie	61 min
Jun 7, 5:16 PM MDT	Tornado Warning	CYS	Laramie	44 min
Jun 7, 5:23 PM MDT	Flash Flood Warning	CYS	Laramie	2 hr
Jun 7, 5:29 PM MDT	Flash Flood Warning	CYS	Laramie, Platte	2 hr
Jun 7, 5:52 PM MDT	Tornado Warning	CYS	Laramie	38 min
Jun 7, 5:57 PM MDT	Severe Thunderstorm Warning	CYS	Laramie	63 min
Jun 6, 7:16 PM MDT	Special Weather Statement	CYS	Banner	59 min
Jun 6, 7:50 PM MDT	Special Weather Statement	CYS	Banner	55 min
Jun 6, 8:43 PM MDT	Areal Flood Warning	CYS	Banner, Scotts Bluff	8 hr
Jun 7, 1:38 PM MDT	Special Weather Statement	CYS	Sioux	52 min
Jun 7, 1:55 PM MDT	Severe Thunderstorm Warning	CYS	Sioux	65 min
Jun 7, 2:09 PM MDT	Severe Thunderstorm Warning	CYS	Dawes	46 min
Jun 7, 4:45 PM MDT	Special Weather Statement	CYS	Dawes	60 min
Jun 7, 5:16 PM MDT	Special Weather Statement	CYS	Morrill	44 min
Jun 7, 5:50 PM MDT	Special Weather Statement	CYS	Kimball	40 min

Nearby

Special Weather Statements in Wyoming, 2012 Every special weather statement in 2012

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.