Alert archive / Oklahoma / Mesoscale Discussions in 2014

Mesoscale Discussion 1799

October 2, 20144 states

The Storm Prediction Center issued this mesoscale discussion at Oct 2, 2014, 3:16 PM CDT for 4 states. It was in force for 59 min.

The area

The outline as issued.

The facts

Issued
Oct 2, 2014, 3:16 PM CDT (20:16 UTC)
Expired
Oct 2, 2014, 4:15 PM CDT
In force
59 min
Issued by
the Storm Prediction Center
All 67 counties

Benton County, AR, Boone County, AR, Carroll County, AR, Crawford County, AR, Franklin County, AR, Johnson County, AR, Logan County, AR, Madison County, AR, Newton County, AR, Polk County, AR, Scott County, AR, Sebastian County, AR, Washington 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, Maries County, MO, McDonald County, MO, Miller County, MO, Newton County, MO, Phelps County, MO, Polk County, MO, Pulaski County, MO, St. Clair County, MO, Stone County, MO, Taney County, MO, Vernon County, MO, Webster County, MO, Wright County, MO, Adair County, OK, Atoka County, OK, Bryan County, OK, Cherokee County, OK, Choctaw 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, Love County, OK, Marshall County, OK, Mayes County, OK, McCurtain County, OK, McIntosh County, OK, Muskogee County, OK, Okmulgee County, OK, Ottawa County, OK, Pittsburg County, OK, Pontotoc County, OK, Pushmataha County, OK, Rogers County, OK, Sequoyah County, OK, Wagoner County, OK

The radar

The Western Arkansas radar (KSRX), 116 km from the middle of the area, began a volume at 20:16 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

Springfield, MO (KSGF), launched 12:00Z, 8.3 hours before the alert went out and 74 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-pSkew-T log-p diagram, Springfield, MO at 12:00Z on 2014-10-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2054 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Springfield, MO at 12:00Z on 2014-10-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 285 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
2054 J/kg
Mixed-layer CIN
-20 J/kg
Mixed-layer LCL
689 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
285 m²/s²
0-3 km storm-relative helicity
281 m²/s²
Significant tornado parameter
2.3
Supercell composite
11.6

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.

IssuedProductOfficeCountiesLasted
Oct 2, 11:59 AM CDTMesoscale DiscussionSPCClay, Randolph91 min
Oct 2, 12:20 PM CDTSevere Thunderstorm WatchSPCBaxter, Benton, Boone, Carroll, Crawford, Franklin and 11 more8 hr
Oct 2, 1:57 PM CDTMesoscale DiscussionSPCArkansas, Ashley, Bradley, Calhoun, Chicot, Desha and 4 more93 min
Oct 2, 5:25 PM CDTMesoscale DiscussionSPCArkansas, Ashley, Bradley, Calhoun, Chicot, Clark and 50 more95 min
Oct 2, 5:48 PM CDTTornado WatchSPCArkansas, Ashley, Bradley, Calhoun, Chicot, Clark and 52 more8 hr
Oct 1, 9:20 PM CDTMesoscale DiscussionSPCAnderson, Douglas, Franklin, Jefferson, Johnson, Leavenworth and 3 more25 min
Oct 1, 9:52 PM CDTSevere Thunderstorm WatchSPCBourbon, Linn, Miami6 hr
Oct 1, 9:59 PM CDTMesoscale DiscussionSPCDecatur, Ellis, Gove, Graham, Lane, Ness and 9 more2 hr
Oct 1, 11:55 PM CDTMesoscale DiscussionSPCDouglas, Franklin, Johnson, Leavenworth, Linn, Miami and 1 more95 min
Oct 1, 11:59 PM CDTSevere Thunderstorm WatchSPCJewell, Mitchell, Osborne, Phillips, Rooks, Smith5 hr
Oct 2, 2:33 AM CDTMesoscale DiscussionSPCAllen, Bourbon, Cherokee, Crawford, Labette, Linn and 3 more117 min
Oct 2, 3:02 AM CDTMesoscale DiscussionSPCClay, Cloud, Jewell, Mitchell, Ottawa, Republic and 1 more118 min
Oct 2, 6:59 AM CDTMesoscale DiscussionSPCAtchison, Brown, Clay, Dickinson, Doniphan, Geary and 10 more61 min
Oct 2, 8:00 AM CDTSevere Thunderstorm WatchSPCAllen, Anderson, Brown, Butler, Chase, Chautauqua and 34 more7 hr
Oct 2, 1:22 PM CDTSevere Thunderstorm WatchSPCBollinger, Cape Girardeau, Carter, Crawford, Franklin, Gasconade and 13 more10 hr
Oct 2, 3:14 PM CDTMesoscale DiscussionSPCBollinger, Cape Girardeau, Franklin, Iron, Jefferson, Madison and 7 more91 min
Oct 2, 6:00 PM CDTMesoscale DiscussionSPCBollinger, Cape Girardeau, Crawford, Franklin, Iron, Jefferson and 8 more90 min
Oct 1, 11:00 PM CDTMesoscale DiscussionSPCBlaine, Caddo, Canadian, Cleveland, Comanche, Cotton and 18 more3 hr
Oct 2, 10:00 AM CDTMesoscale DiscussionSPCAdair, Atoka, Carter, Cherokee, Cleveland, Coal and 23 more3 hr
Oct 2, 1:55 PM CDTSevere Thunderstorm WatchSPCMcCurtain9 hr
Oct 2, 4:51 PM CDTMesoscale DiscussionSPCBryan, Love54 min

Nearby

Mesoscale Discussions in Oklahoma, 2014Mesoscale Discussions in Missouri, 2014Mesoscale Discussions in Arkansas, 2014Every mesoscale discussion in 2014

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.