Alert archive / Wyoming / Special Weather Statements in 2010

Special Weather Statement, NWS Riverton, WY

August 3, 2010Sweetwater County, Wyoming

NWS Riverton, WY issued this special weather statement at Aug 3, 2010, 3:42 PM MDT for Sweetwater County, Wyoming. It was in force for 48 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: Aug 3, 2010, 3:42 PM MDT (21:42 UTC)
Expired: Aug 3, 2010, 4:30 PM MDT
In force: 48 min
Issued by: NWS Riverton, WY

County Sweetwater County, WY

The radar

The Riverton/Lander radar (KRIW), 175 km from the middle of the area, began a volume at 21:44 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

Salt Lake City I, UT (KSLC), launched 12:00Z, 9.7 hours before the alert went out and 243 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: 200 J/kg
Mixed-layer CIN: -192 J/kg
Mixed-layer LCL: 2579 m above ground
0-6 km bulk shear: 46 kt
0-1 km storm-relative helicity: 235 m²/s²
0-3 km storm-relative helicity: 271 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

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 Riverton, WY wrote its last area forecast discussion before this special weather statement went out at Aug 3, 2:20 PM MDT, 1 hour 22 minutes earlier.

Area forecast discussion, Aug 3, 2:20 PM MDT, 1 hour 22 minutes before

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Hazardous weather outlook, Aug 3, 5:00 AM MDT, 10 hours 42 minutes before

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In the hours before

Special weather statement, Aug 3, 1:50 PM MDT, 1 hour 52 minutes before

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Special weather statement, Aug 3, 2:46 PM MDT, 56 minutes before

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Special weather statement, Aug 3, 2:50 PM MDT, 52 minutes before

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Special weather statement, Aug 3, 2:53 PM MDT, 49 minutes before

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Special weather statement, Aug 3, 3:32 PM MDT, 10 minutes before

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Special weather statement, Aug 3, 3:42 PM MDT, 0 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 3, 6:06 AM MDT	Special Weather Statement	RIW	Lincoln	39 min
Aug 3, 11:26 AM MDT	Special Weather Statement	RIW	Johnson	49 min
Aug 3, 1:47 PM MDT	Special Weather Statement	RIW	Park	43 min
Aug 3, 1:50 PM MDT	Special Weather Statement	RIW		40 min
Aug 3, 2:50 PM MDT	Special Weather Statement	RIW	Park	40 min
Aug 3, 3:32 PM MDT	Special Weather Statement	RIW	Hot Springs	43 min
Aug 3, 3:44 PM MDT	Special Weather Statement	RIW	Sublette	46 min
Aug 3, 3:51 PM MDT	Special Weather Statement	RIW	Sweetwater	39 min

Nearby

Special Weather Statements in Wyoming, 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.