Alert archive / Oklahoma / Mesoscale Discussions in 2005

Mesoscale Discussion 2289

September 28, 20054 states

The Storm Prediction Center issued this mesoscale discussion at Sep 28, 2005, 2:59 PM CDT for 4 states. It was in force for 61 min.

The area

The outline as issued.

The facts

Issued: Sep 28, 2005, 2:59 PM CDT (19:59 UTC)
Expired: Sep 28, 2005, 4:00 PM CDT
In force: 61 min
Issued by: the Storm Prediction Center

All 64 counties

Baxter County, AR, Benton County, AR, Boone County, AR, Carroll County, AR, Crawford County, AR, Franklin County, AR, Johnson County, AR, Logan County, AR, Madison County, AR, Marion County, AR, Newton County, AR, Pope County, AR, Scott County, AR, Searcy County, AR, Sebastian County, AR, Van Buren County, AR, Washington County, AR, Yell County, AR, Cherokee County, KS, Barry County, MO, Barton County, MO, Camden County, MO, Cedar County, MO, Christian County, MO, Dade County, MO, Dallas County, MO, Douglas County, MO, Greene County, MO, Hickory County, MO, Jasper County, MO, Laclede County, MO, Lawrence County, MO, McDonald County, MO, Newton County, MO, Ozark County, MO, Polk County, MO, Stone County, MO, Taney County, MO, Webster County, MO, Wright County, MO, Adair County, OK, Atoka County, OK, Cherokee County, OK, Coal County, OK, Craig County, OK, Delaware County, OK, Haskell County, OK, Hughes County, OK, Johnston County, OK, Latimer County, OK, LeFlore County, OK, Mayes County, OK, McIntosh County, OK, Muskogee County, OK, Okfuskee County, OK, Okmulgee County, OK, Ottawa County, OK, Pittsburg County, OK, Pontotoc County, OK, Pushmataha County, OK, Rogers County, OK, Seminole County, OK, Sequoyah County, OK, Wagoner County, OK

The radar

The Tulsa radar (KINX), 76 km from the middle of the area, began a volume at 20:01 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 watches that followed

Watches SPC issued over any of the same counties within four hours of this discussion.

The nearest sounding before it

Springfield, MO (KSGF), launched 12:00Z, 8.0 hours before the alert went out and 138 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: 56 J/kg
Mixed-layer CIN: -436 J/kg
Mixed-layer LCL: 1001 m above ground
0-6 km bulk shear: 24 kt
0-1 km storm-relative helicity: 153 m²/s²
0-3 km storm-relative helicity: 179 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

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
Sep 28, 3:15 PM CDT	Severe Thunderstorm Watch	SPC	Baxter, Benton, Boone, Carroll, Crawford, Franklin and 13 more	6 hr
Sep 28, 4:51 PM CDT	Mesoscale Discussion	SPC	Clay, Cleburne, Conway, Craighead, Cross, Faulkner and 20 more	84 min
Sep 28, 5:30 PM CDT	Severe Thunderstorm Watch	SPC	Clark, Clay, Cleburne, Conway, Craighead, Faulkner and 23 more	6 hr
Sep 28, 5:45 PM CDT	Mesoscale Discussion	SPC	Little River	2 hr
Sep 28, 6:09 AM CDT	Mesoscale Discussion	SPC	Allen, Anderson, Bourbon, Chautauqua, Cherokee, Coffey and 15 more	2 hr
Sep 28, 11:56 AM CDT	Mesoscale Discussion	SPC	Audrain, Benton, Boone, Callaway, Camden, Clark and 23 more	94 min

Nearby

Mesoscale Discussions in Oklahoma, 2005 Mesoscale Discussions in Missouri, 2005 Mesoscale Discussions in Arkansas, 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.