Alert archive / Oklahoma / Tornado Watches in 1998

Tornado Watch 864

October 4, 199818 counties in Arkansas; 7 counties in Missouri; 27 counties in Oklahoma

The Storm Prediction Center issued this tornado watch at Oct 4, 1998, 7:15 PM CDT for 18 counties in Arkansas; 7 counties in Missouri; 27 counties in Oklahoma. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
Oct 4, 1998, 7:15 PM CDT (00:15 UTC)
Expired
Oct 5, 1998, 1:00 AM CDT
In force
6 hr
Issued by
the Storm Prediction Center
All 52 counties

Benton County, AR, Boone County, AR, Carroll County, AR, Crawford County, AR, Franklin County, AR, Howard County, AR, Johnson County, AR, Logan County, AR, Madison County, AR, Montgomery County, AR, Newton County, AR, Pike County, AR, Polk County, AR, Scott County, AR, Sebastian County, AR, Sevier County, AR, Washington County, AR, Yell County, AR, Barry County, MO, Christian County, MO, Lawrence County, MO, McDonald County, MO, Newton County, MO, Stone County, MO, Taney 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, Latimer County, OK, LeFlore County, OK, Mayes County, OK, McCurtain County, OK, McIntosh County, OK, Muskogee County, OK, Nowata County, OK, Okfuskee County, OK, Okmulgee County, OK, Ottawa County, OK, Pittsburg County, OK, Pushmataha County, OK, Rogers County, OK, Sequoyah County, OK, Tulsa County, OK, Wagoner County, OK, Washington County, OK

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
Oct 4, 9:01 PM CDTSevere Thunderstorm WarningTSATulsa, Washington29 min
Oct 4, 9:11 PM CDTSevere Thunderstorm WarningTSANowata, Rogers34 min
Oct 4, 9:40 PM CDTTornado WarningTSACreek, Okfuskee50 min
Oct 4, 9:49 PM CDTSevere Thunderstorm WarningTSACraig, Nowata, Rogers56 min
Oct 4, 10:02 PM CDTTornado WarningTSATulsa, Washington43 min
Oct 4, 10:11 PM CDTTornado WarningTSACraig, Nowata49 min
Oct 4, 10:26 PM CDTTornado WarningTSARogers34 min
Oct 4, 10:27 PM CDTTornado WarningTSAOkfuskee48 min
Oct 4, 10:36 PM CDTTornado WarningTSATulsa, Washington39 min
Oct 4, 10:45 PM CDTSevere Thunderstorm WarningTSACreek, Okmulgee45 min
Oct 4, 10:49 PM CDTTornado WarningTSACreek, Okmulgee41 min
Oct 4, 10:56 PM CDTTornado WarningTSARogers34 min
Oct 4, 11:07 PM CDTTornado WarningTSAOkfuskee38 min
Oct 4, 11:24 PM CDTSevere Thunderstorm WarningTSACraig36 min
Oct 4, 11:24 PM CDTTornado WarningTSAMuskogee, Okmulgee51 min
Oct 4, 11:54 PM CDTSevere Thunderstorm WarningTSATulsa, Wagoner51 min
Oct 5, 12:03 AM CDTSevere Thunderstorm WarningTSACreek, Okfuskee, Okmulgee42 min
Oct 5, 12:10 AM CDTSevere Thunderstorm WarningTSAMcIntosh, Muskogee, Wagoner50 min
Oct 5, 12:11 AM CDTFlash Flood WarningTSANowata, Washington2 hr
Oct 5, 12:11 AM CDTFlash Flood WarningTSATulsa2 hr
Oct 5, 12:16 AM CDTTornado WarningTSAMuskogee, Wagoner29 min
Oct 5, 12:29 AM CDTTornado WarningTSACherokee46 min
Oct 5, 12:35 AM CDTFlash Flood WarningTSACreek, Okmulgee115 min
Oct 5, 12:38 AM CDTSevere Thunderstorm WarningTSACreek, Okmulgee52 min
Oct 5, 12:56 AM CDTSevere Thunderstorm WarningTSAAdair, Cherokee, Delaware49 min

The nearest sounding before it

Norman, OK (KOUN), launched 00:00Z, 0.3 hours before the alert went out and 204 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 00:00Z on 1998-10-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1746 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 00:00Z on 1998-10-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 293 square meters per square second.19395878Sfc1 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
1746 J/kg
Mixed-layer CIN
-71 J/kg
Mixed-layer LCL
1456 m above ground
0-6 km bulk shear
51 kt
0-1 km storm-relative helicity
293 m²/s²
0-3 km storm-relative helicity
419 m²/s²
Significant tornado parameter
2.0
Supercell composite
28.9

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Oct 4, 11:30 PM CDTTornado WatchSPCBenton, Boone, Carroll, Crawford, Franklin, Madison and 2 more6 hr
Oct 5, 4:30 AM CDTSevere Thunderstorm WatchSPCBenton, Boone, Carroll, Crawford, Madison, Washington6 hr
Oct 5, 3:15 PM CDTSevere Thunderstorm WatchSPCLittle River, Sevier6 hr
Oct 5, 5:45 PM CDTTornado WatchSPCArkansas, Calhoun, Clark, Cleburne, Cleveland, Columbia and 27 more5 hr

Nearby

Tornado Watches in Oklahoma, 1998Tornado Watches in Arkansas, 1998Tornado Watches in Missouri, 1998Every tornado watch in 1998

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.