Alert archive / Oklahoma / Tornado Watches in 1998

Tornado Watch 530

June 8, 199816 counties in Oklahoma

The Storm Prediction Center issued this tornado watch at Jun 8, 1998, 6:15 PM CDT for 16 counties in Oklahoma. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
Jun 8, 1998, 6:15 PM CDT (23:15 UTC)
Expired
Jun 9, 1998, 12:00 AM CDT
In force
6 hr
Issued by
the Storm Prediction Center

Counties Cherokee County, OK, Craig County, OK, Creek County, OK, Delaware County, OK, Mayes County, OK, McIntosh County, OK, Muskogee County, OK, Nowata County, OK, Okfuskee County, OK, Okmulgee County, OK, Osage County, OK, Ottawa County, OK, Rogers County, OK, Tulsa County, OK, Wagoner County, OK, Washington County, OK

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
Jun 8, 7:39 PM CDTSevere Thunderstorm WarningTSAOkfuskee51 min
Jun 8, 7:59 PM CDTSevere Thunderstorm WarningTSAMcIntosh, Pittsburg61 min
Jun 8, 8:21 PM CDTTornado WarningTSAMcIntosh39 min
Jun 8, 8:50 PM CDTTornado WarningTSAHaskell, McIntosh, Pittsburg70 min
Jun 8, 10:16 PM CDTSevere Thunderstorm WarningTSACreek, Okfuskee44 min
Jun 8, 10:29 PM CDTSevere Thunderstorm WarningTSAOsage46 min
Jun 8, 10:42 PM CDTSevere Thunderstorm WarningTSAOkmulgee48 min
Jun 8, 11:13 PM CDTSevere Thunderstorm WarningTSAMuskogee47 min
Jun 8, 11:56 PM CDTSevere Thunderstorm WarningTSACherokee, Muskogee49 min

The nearest sounding before it

Norman, OK (KOUN), launched 12:00Z, 11.3 hours before the alert went out and 154 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 1998-06-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 405 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 1998-06-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 358 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
405 J/kg
Mixed-layer CIN
-424 J/kg
Mixed-layer LCL
647 m above ground
0-6 km bulk shear
51 kt
0-1 km storm-relative helicity
358 m²/s²
0-3 km storm-relative helicity
408 m²/s²
Significant tornado parameter
0.0
Supercell composite
2.9

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
Jun 7, 9:00 PM CDTTornado WatchSPCBeaver, Texas5 hr
Jun 8, 2:45 PM CDTTornado WatchSPCAlfalfa, Blaine, Caddo, Canadian, Carter, Cleveland and 29 more6 hr

Nearby

Tornado Watches in Oklahoma, 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.