Alert archive / Oklahoma / Tornado Watches in 2006

Tornado Watch 78

March 12, 200623 counties in Arkansas; 25 counties in Oklahoma

The Storm Prediction Center issued this tornado watch at Mar 12, 2006, 9:34 PM CST for 23 counties in Arkansas; 25 counties in Oklahoma. It was in force for 7 hr.

The area

The outline as issued.

The facts

Issued
Mar 12, 2006, 9:34 PM CST (03:34 UTC)
Expired
Mar 13, 2006, 5:00 AM CST
In force
7 hr
Issued by
the Storm Prediction Center
All 48 counties

Baxter County, AR, Benton County, AR, Boone County, AR, Carroll County, AR, Conway County, AR, Crawford County, AR, Franklin County, AR, Fulton County, AR, Izard County, AR, Johnson County, AR, Logan County, AR, Madison County, AR, Marion County, AR, Newton County, AR, Perry County, AR, Pope County, AR, Scott County, AR, Searcy County, AR, Sebastian County, AR, Stone County, AR, Van Buren County, AR, Washington County, AR, Yell County, AR, Adair County, OK, Cherokee County, OK, Craig County, OK, Creek County, OK, Delaware County, OK, Haskell County, OK, Hughes County, OK, Latimer County, OK, LeFlore County, OK, Lincoln County, OK, Mayes County, OK, McIntosh County, OK, Muskogee County, OK, Nowata County, OK, Okfuskee County, OK, Okmulgee County, OK, Ottawa County, OK, Pittsburg County, OK, Pottawatomie County, OK, Rogers County, OK, Seminole County, OK, Sequoyah County, OK, Tulsa County, OK, Wagoner County, OK, Washington County, OK

The radar

The Tulsa radar (KINX), 78 km from the middle of the area, began a volume at 03:37 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.

Warnings issued inside it

32 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

IssuedProductOfficeCountiesLasted
Mar 12, 10:13 PM CSTTornado WarningTSACarroll62 min
Mar 12, 10:17 PM CSTTornado WarningTSABenton33 min
Mar 12, 10:32 PM CSTSevere Thunderstorm WarningTSACraig, Nowata44 min
Mar 12, 10:50 PM CSTSevere Thunderstorm WarningTSAOttawa39 min
Mar 12, 11:04 PM CSTSevere Thunderstorm WarningTSAMayes, Rogers56 min
Mar 12, 11:26 PM CSTSevere Thunderstorm WarningTSACraig34 min
Mar 12, 11:31 PM CSTSevere Thunderstorm WarningTSADelaware, Ottawa59 min
Mar 12, 11:57 PM CSTSevere Thunderstorm WarningTSAAdair63 min
Mar 13, 12:03 AM CSTSevere Thunderstorm WarningTSAWashington42 min
Mar 13, 12:21 AM CSTSevere Thunderstorm WarningTSAHaskell54 min
Mar 13, 12:23 AM CSTSevere Thunderstorm WarningTSAMuskogee16 min
Mar 13, 12:34 AM CSTSevere Thunderstorm WarningTSASequoyah71 min
Mar 13, 12:43 AM CSTTornado WarningTSAWashington62 min
Mar 13, 12:51 AM CSTSevere Thunderstorm WarningTSAAdair27 min
Mar 13, 12:54 AM CSTSevere Thunderstorm WarningTSALeFlore81 min
Mar 13, 1:06 AM CSTSevere Thunderstorm WarningTSACarroll, Madison54 min
Mar 13, 1:07 AM CSTSevere Thunderstorm WarningTSACrawford68 min
Mar 13, 1:26 AM CSTSevere Thunderstorm WarningLZKBoone64 min
Mar 13, 1:42 AM CSTSevere Thunderstorm WarningTSASebastian63 min
Mar 13, 1:52 AM CSTSevere Thunderstorm WarningTSAFranklin54 min
Mar 13, 1:54 AM CSTSevere Thunderstorm WarningLZKMarion51 min
Mar 13, 1:55 AM CSTSevere Thunderstorm WarningLZKLogan, Scott50 min
Mar 13, 2:13 AM CSTSevere Thunderstorm WarningTSALeFlore31 min
Mar 13, 2:19 AM CSTSevere Thunderstorm WarningLZKNewton56 min
Mar 13, 2:24 AM CSTSevere Thunderstorm WarningLZKBaxter51 min
Mar 13, 2:45 AM CSTSevere Thunderstorm WarningLZKJohnson, Logan, Pope60 min
Mar 13, 3:06 AM CSTSevere Thunderstorm WarningLZKPope, Yell54 min
Mar 13, 3:16 AM CSTSevere Thunderstorm WarningLZKFulton44 min
Mar 13, 3:25 AM CSTSevere Thunderstorm WarningLZKConway, Van Buren65 min
Mar 13, 3:52 AM CSTSevere Thunderstorm WarningLZKGarland, Montgomery, Perry38 min
Mar 13, 4:14 AM CSTSevere Thunderstorm WarningLZKPerry, Saline46 min
Mar 13, 4:35 AM CSTSevere Thunderstorm WarningLZKFaulkner, Perry, Pulaski, Saline55 min

Discussions around it

SPC mesoscale discussions over the same counties from four hours before the watch to its end.

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 3.6 hours before the alert went out and 118 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 00:00Z on 2006-03-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1549 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 00:00Z on 2006-03-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 200 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
1549 J/kg
Mixed-layer CIN
-16 J/kg
Mixed-layer LCL
1450 m above ground
0-6 km bulk shear
61 kt
0-1 km storm-relative helicity
200 m²/s²
0-3 km storm-relative helicity
264 m²/s²
Significant tornado parameter
1.5
Supercell composite
13.0

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 12, 9:13 PM CSTMesoscale DiscussionSPCBenton, Boone, Carroll, Crawford, Franklin, Johnson and 4 more62 min
Mar 12, 11:30 PM CSTMesoscale DiscussionSPCBaxter, Benton, Boone, Carroll, Crawford, Franklin and 8 more2 hr
Mar 12, 11:53 PM CSTTornado WatchSPCHoward, Little River, Miller, Montgomery, Pike, Polk and 1 more6 hr
Mar 13, 2:44 AM CSTMesoscale DiscussionSPCArkansas, Ashley, Bradley, Calhoun, Clay, Cleburne and 35 more91 min
Mar 13, 3:13 AM CSTTornado WatchSPCArkansas, Bradley, Calhoun, Clark, Clay, Cleburne and 37 more7 hr
Mar 13, 6:08 AM CSTMesoscale DiscussionSPCCrittenden, Mississippi, Poinsett97 min
Mar 13, 9:02 AM CSTMesoscale DiscussionSPCArkansas, Ashley, Chicot, Crittenden, Cross, Desha and 8 more58 min
Mar 12, 6:28 PM CSTMesoscale DiscussionSPCAdair, Audrain, Barton, Bates, Benton, Boone and 65 more92 min
Mar 12, 8:00 PM CSTMesoscale DiscussionSPCAdair, Audrain, Barton, Bates, Benton, Boone and 59 more90 min
Mar 12, 8:42 PM CSTTornado WatchSPCAdair, Audrain, Barry, Barton, Bates, Benton and 72 more7 hr
Mar 13, 12:35 AM CSTMesoscale DiscussionSPCBollinger, Butler, Cape Girardeau, Carter, Iron, Madison and 9 more85 min
Mar 13, 1:06 AM CSTTornado WatchSPCBollinger, Butler, Cape Girardeau, Carter, Madison, Mississippi and 8 more6 hr
Mar 12, 6:21 PM CSTMesoscale DiscussionSPCCherokee, Craig, Creek, Delaware, McIntosh, Mayes and 8 more114 min
Mar 12, 8:45 PM CSTMesoscale DiscussionSPCAtoka, Bryan, Carter, Coal, Garvin, Jefferson and 5 more3 hr

Nearby

Tornado Watches in Oklahoma, 2006Tornado Watches in Arkansas, 2006Every tornado watch in 2006

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.