Alert archive / Utah / Special Weather Statements in 2010

Special Weather Statement, NWS Salt Lake City, UT

October 6, 2010Iron County, Utah

NWS Salt Lake City, UT issued this special weather statement at Oct 6, 2010, 4:21 PM MDT for Iron County, Utah. It was in force for 24 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: Oct 6, 2010, 4:21 PM MDT (22:21 UTC)
Expired: Oct 6, 2010, 4:45 PM MDT
In force: 24 min
Issued by: NWS Salt Lake City, UT

County Iron County, UT

The radar

The Cedar City radar (KICX), 12 km from the middle of the area, began a volume at 22:23 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

Flgstf/Belemont, AZ (KFGZ), launched 12:00Z, 10.4 hours before the alert went out and 288 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: 376 J/kg
Mixed-layer CIN: -12 J/kg
Mixed-layer LCL: 638 m above ground
0-6 km bulk shear: 55 kt
0-1 km storm-relative helicity: 286 m²/s²
0-3 km storm-relative helicity: 320 m²/s²
Significant tornado parameter: 0.6
Supercell composite: 4.8

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 Salt Lake City, UT wrote its last area forecast discussion before this special weather statement went out at Oct 6, 4:13 PM MDT, 8 minutes earlier.

Area forecast discussion, Oct 6, 4:13 PM MDT, 8 minutes before

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Hazardous weather outlook, Oct 6, 11:30 AM MDT, 4 hours 51 minutes before

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In the hours before

Local storm report, Oct 6, 2:53 PM MDT, 1 hour 28 minutes before

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Special weather statement, Oct 6, 3:07 PM MDT, 1 hour 14 minutes before

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Local storm report, Oct 6, 3:17 PM MDT, 1 hour 4 minutes before

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Special weather statement, Oct 6, 3:56 PM MDT, 25 minutes before

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Local storm report, Oct 6, 4:09 PM MDT, 12 minutes before

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Special weather statement, Oct 6, 4:21 PM MDT, 0 minutes before

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The office that day

Everything else NWS Salt Lake City, UT issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Oct 6, 9:18 AM MDT	Severe Thunderstorm Warning	SLC	Kane, San Juan	42 min
Oct 6, 9:54 AM MDT	Areal Flood Warning	SLC	Emery, Garfield, Iron, Kane, San Juan, Sanpete and 3 more	23 hr
Oct 6, 11:12 AM MDT	Severe Thunderstorm Warning	SLC	Kane, San Juan	48 min
Oct 6, 11:25 AM MDT	Tornado Warning	SLC	Kane, San Juan	20 min
Oct 6, 12:02 PM MDT	Severe Thunderstorm Warning	SLC	Garfield, Kane, San Juan	43 min
Oct 6, 12:15 PM MDT	Special Weather Statement	SLC	Wayne	45 min
Oct 6, 12:45 PM MDT	Severe Thunderstorm Warning	SLC	Garfield, San Juan, Wayne	60 min
Oct 6, 1:39 PM MDT	Special Weather Statement	SLC	Emery	36 min
Oct 6, 1:47 PM MDT	Severe Thunderstorm Warning	SLC	Emery, Wayne	43 min
Oct 6, 1:50 PM MDT	Severe Thunderstorm Warning	SLC	Emery	40 min
Oct 6, 2:29 PM MDT	Severe Thunderstorm Warning	SLC	Emery, Wayne	46 min
Oct 6, 2:29 PM MDT	Severe Thunderstorm Warning	SLC	Emery	61 min
Oct 6, 3:07 PM MDT	Special Weather Statement	SLC	Carbon	38 min
Oct 6, 3:15 PM MDT	Severe Thunderstorm Warning	SLC	Carbon, Duchesne	27 min
Oct 6, 3:56 PM MDT	Special Weather Statement	SLC	Box Elder, Davis, Salt Lake, Tooele	94 min

Nearby

Special Weather Statements in Utah, 2010 Every special weather statement in 2010

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.