Alert archive / Oklahoma / Severe Thunderstorm Watches in 1997

Severe Thunderstorm Watch 564

July 3, 199728 counties in Oklahoma

The Storm Prediction Center issued this severe thunderstorm watch at Jul 3, 1997, 9:00 PM CDT for 28 counties in Oklahoma. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
Jul 3, 1997, 9:00 PM CDT (02:00 UTC)
Expired
Jul 4, 1997, 3:00 AM CDT
In force
6 hr
Issued by
the Storm Prediction Center
All 28 counties

Adair County, OK, Canadian County, OK, Cherokee County, OK, Craig County, OK, Creek County, OK, Delaware County, OK, Garfield County, OK, Grant County, OK, Kay County, OK, Kingfisher County, OK, Lincoln County, OK, Logan County, OK, Mayes County, OK, Muskogee County, OK, Noble County, OK, Nowata County, OK, Okfuskee County, OK, Oklahoma County, OK, Okmulgee County, OK, Osage County, OK, Ottawa County, OK, Pawnee County, OK, Payne County, OK, Rogers County, OK, Sequoyah County, OK, Tulsa County, OK, Wagoner County, OK, Washington County, OK

The radar

The Tulsa radar (KINX), 105 km from the middle of the area, began a volume at 02:00 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

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

IssuedProductOfficeCountiesLasted
Jul 3, 9:06 PM CDTSevere Thunderstorm WarningTSADelaware, Ottawa69 min
Jul 3, 9:13 PM CDTSevere Thunderstorm WarningTSACraig32 min
Jul 3, 10:22 PM CDTSevere Thunderstorm WarningTSAOsage, Tulsa53 min
Jul 3, 10:48 PM CDTSevere Thunderstorm WarningTSACreek57 min
Jul 3, 11:13 PM CDTSevere Thunderstorm WarningTSATulsa32 min
Jul 3, 11:19 PM CDTSevere Thunderstorm WarningTSATulsa26 min
Jul 3, 11:23 PM CDTSevere Thunderstorm WarningTSATulsa22 min

The nearest sounding before it

Norman, OK (KOUN), launched 00:00Z, 2.0 hours before the alert went out and 144 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 1997-07-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2885 joules per kilogram.LCLEL10008507005003002001001 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 1997-07-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 2 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
2885 J/kg
Mixed-layer CIN
-3 J/kg
Mixed-layer LCL
1589 m above ground
0-6 km bulk shear
12 kt
0-1 km storm-relative helicity
2 m²/s²
0-3 km storm-relative helicity
5 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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
Jul 3, 7:30 PM CDTSevere Thunderstorm WatchSPCAdair7 hr

Nearby

Severe Thunderstorm Watches in Oklahoma, 1997Every severe thunderstorm watch in 1997

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.