Alert archive / Utah / Mesoscale Discussions in 2005

Mesoscale Discussion 1433

June 23, 20054 states

The Storm Prediction Center issued this mesoscale discussion at Jun 23, 2005, 1:50 PM MST for 4 states. It was in force for 115 min.

The area

The outline as issued.

The facts

Issued: Jun 23, 2005, 1:50 PM MST (20:50 UTC)
Expired: Jun 23, 2005, 3:45 PM MST
In force: 115 min
Issued by: the Storm Prediction Center

All 30 counties

Apache County, AZ, Coconino County, AZ, Navajo County, AZ, Archuleta County, CO, Delta County, CO, Dolores County, CO, Hinsdale County, CO, La Plata County, CO, Mesa County, CO, Mineral County, CO, Montezuma County, CO, Montrose County, CO, Ouray County, CO, San Juan County, CO, San Miguel County, CO, San Juan County, NM, Beaver County, UT, Carbon County, UT, Emery County, UT, Garfield County, UT, Grand County, UT, Iron County, UT, Kane County, UT, Millard County, UT, Piute County, UT, San Juan County, UT, Sanpete County, UT, Sevier County, UT, Washington County, UT, Wayne County, UT

The radar

The Flagstaff radar (KFSX), 207 km from the middle of the area, began a volume at 20:53 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, 8.8 hours before the alert went out and 168 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: 36 J/kg
Mixed-layer CIN: -57 J/kg
Mixed-layer LCL: 1264 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: -23 m²/s²
0-3 km storm-relative helicity: 32 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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SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 23, 2:52 PM MST	Mesoscale Discussion	SPC	Kit Carson, Logan, Phillips, Sedgwick, Yuma	113 min
Jun 23, 3:25 PM MST	Severe Thunderstorm Watch	SPC	Phillips, Sedgwick, Yuma	8 hr

Nearby

Mesoscale Discussions in Utah, 2005 Mesoscale Discussions in Colorado, 2005 Mesoscale Discussions in Arizona, 2005 Every mesoscale discussion in 2005

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.