Alert archive / Oklahoma / Mesoscale Discussions in 2020

Mesoscale Discussion 10

January 10, 2020Chautauqua County, Montgomery County, Kansas; 48 counties in Oklahoma

The Storm Prediction Center issued this mesoscale discussion at Jan 10, 2020, 9:12 AM CST for Chautauqua County, Montgomery County, Kansas; 48 counties in Oklahoma. It was in force for 93 min.

The area

The outline as issued.

The facts

Issued
Jan 10, 2020, 9:12 AM CST (15:12 UTC)
Expired
Jan 10, 2020, 10:45 AM CST
In force
93 min
Issued by
the Storm Prediction Center
All 50 counties

Chautauqua County, KS, Montgomery County, KS, Alfalfa County, OK, Atoka County, OK, Blaine County, OK, Caddo County, OK, Canadian County, OK, Cherokee County, OK, Cleveland County, OK, Coal County, OK, Craig County, OK, Creek County, OK, Dewey County, OK, Garfield County, OK, Garvin County, OK, Grady County, OK, Grant County, OK, Haskell County, OK, Hughes County, OK, Johnston County, OK, Kay County, OK, Kingfisher County, OK, Latimer County, OK, Lincoln County, OK, Logan County, OK, Major County, OK, Mayes County, OK, McClain County, OK, McIntosh County, OK, Murray County, OK, Muskogee County, OK, Noble County, OK, Nowata County, OK, Okfuskee County, OK, Oklahoma County, OK, Okmulgee County, OK, Osage County, OK, Pawnee County, OK, Payne County, OK, Pittsburg County, OK, Pontotoc County, OK, Pottawatomie County, OK, Pushmataha County, OK, Rogers County, OK, Seminole County, OK, Stephens County, OK, Tulsa County, OK, Wagoner County, OK, Washington County, OK, Woodward County, OK

The radar

The Norman radar (KTLX), 49 km from the middle of the area, began a volume at 15:11 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

Norman, OK (KOUN), launched 12:00Z, 3.2 hours before the alert went out and 65 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, Norman, OK at 12:00Z on 2020-01-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 927 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, Norman, OK at 12:00Z on 2020-01-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 208 square meters per square second.1939587897Sfc1 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
927 J/kg
Mixed-layer CIN
-10 J/kg
Mixed-layer LCL
595 m above ground
0-6 km bulk shear
61 kt
0-1 km storm-relative helicity
208 m²/s²
0-3 km storm-relative helicity
234 m²/s²
Significant tornado parameter
1.1
Supercell composite
5.1

Open this sounding in Storm Lab

The text

As transmitted.

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SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jan 10, 6:30 AM CSTMesoscale DiscussionSPCHarper, Sumner60 min
Jan 10, 7:44 AM CSTSevere Thunderstorm WatchSPCAllen, Butler, Chautauqua, Cowley, Elk, Greenwood and 8 more67 days
Jan 10, 12:11 PM CSTMesoscale DiscussionSPCAllen, Bourbon, Cherokee, Crawford, Labette, Montgomery and 2 more2 hr
Jan 10, 12:54 PM CSTMesoscale DiscussionSPCAtchison, Brown, Chase, Clay, Dickinson, Doniphan and 19 more6 hr
Jan 10, 1:21 PM CSTMesoscale DiscussionSPCButler, Chautauqua, Cowley, Elk, Greenwood, Labette and 5 more54 min
Jan 10, 10:42 AM CSTTornado WatchSPCAdair, Atoka, Bryan, Carter, Cherokee, Choctaw and 38 more10 hr
Jan 10, 11:47 AM CSTMesoscale DiscussionSPCBryan, Choctaw118 min
Jan 10, 1:44 PM CSTMesoscale DiscussionSPCAdair, Atoka, Bryan, Cherokee, Choctaw, Coal and 19 more91 min
Jan 10, 4:55 PM CSTMesoscale DiscussionSPCAtoka, Bryan, Choctaw, Haskell, Latimer, LeFlore and 2 more2 hr
Jan 10, 5:34 PM CSTTornado WatchSPCMcCurtain11 hr

Nearby

Mesoscale Discussions in Oklahoma, 2020Mesoscale Discussions in Kansas, 2020Every mesoscale discussion in 2020

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.