Alert archive / Oklahoma / Tornado Warnings in 1998

Tornado Warning 81, NWS Tulsa, OK

November 9, 1998Haskell County, Sequoyah County, Oklahoma

NWS Tulsa, OK issued this tornado warning at Nov 9, 1998, 11:52 PM CST for Haskell County, Sequoyah County, Oklahoma. It was in force for 38 min. 3 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: Nov 9, 1998, 11:52 PM CST (05:52 UTC)
Expired: Nov 10, 1998, 12:30 AM CST
In force: 38 min
Issued by: NWS Tulsa, OK
Area: Whole counties

Counties Haskell County, OK, Sequoyah County, OK

The radar

The Western Arkansas radar (KSRX), 53 km from the middle of the area, began a volume at 05:56 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.

What was reported inside it

Time	Report	Where	Remark
Nov 9, 11:58 PM CST	Thunderstorm Wind	Tamaha, OK	Power poles were blown down.
Nov 10, 12:00 AM CST	Thunderstorm Wind	Sallisaw, OK	A large tree was blown down across a road.
Nov 10, 12:00 AM CST	Thunderstorm Wind	Mc Curtain, OK	Numerous trees were blown down.

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Nov 9, 11:00 PM CST	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 5.9 hours before the alert went out and 199 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 16 J/kg
Mixed-layer CIN: -341 J/kg
Mixed-layer LCL: 524 m above ground
0-6 km bulk shear: 59 kt
0-1 km storm-relative helicity: 505 m²/s²
0-3 km storm-relative helicity: 565 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.

The office that day

Everything else NWS Tulsa, OK issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Nov 9, 8:08 PM CST	Severe Thunderstorm Warning	TSA	Osage, Pawnee	52 min
Nov 9, 8:54 PM CST	Severe Thunderstorm Warning	TSA	Osage, Pawnee	66 min
Nov 9, 9:35 PM CST	Severe Thunderstorm Warning	TSA	Creek, Osage, Pawnee, Tulsa	55 min
Nov 9, 9:35 PM CST	Severe Thunderstorm Warning	TSA	Washington	55 min
Nov 9, 9:54 PM CST	Severe Thunderstorm Warning	TSA	Okfuskee	51 min
Nov 9, 9:59 PM CST	Severe Thunderstorm Warning	TSA	Nowata	46 min
Nov 9, 10:21 PM CST	Severe Thunderstorm Warning	TSA	Craig, Nowata, Rogers	54 min
Nov 9, 10:21 PM CST	Severe Thunderstorm Warning	TSA	Okfuskee, Okmulgee	54 min
Nov 9, 10:21 PM CST	Severe Thunderstorm Warning	TSA	Muskogee, Tulsa, Wagoner	54 min
Nov 9, 10:31 PM CST	Severe Thunderstorm Warning	TSA	McIntosh, Pittsburg	59 min
Nov 9, 10:48 PM CST	Severe Thunderstorm Warning	TSA	Mayes	27 min
Nov 9, 11:09 PM CST	Severe Thunderstorm Warning	TSA	Haskell, Muskogee	51 min
Nov 9, 11:09 PM CST	Severe Thunderstorm Warning	TSA	Latimer, Pushmataha	51 min
Nov 9, 11:17 PM CST	Severe Thunderstorm Warning	TSA	Choctaw	58 min
Nov 9, 11:20 PM CST	Severe Thunderstorm Warning	TSA	Adair, Cherokee, Delaware	25 min
Nov 9, 11:20 PM CST	Severe Thunderstorm Warning	TSA	Ottawa	25 min
Nov 9, 11:20 PM CST	Tornado Warning	TSA	Latimer, Pittsburg	40 min
Nov 9, 11:36 PM CST	Severe Thunderstorm Warning	TSA	LeFlore, Sequoyah	39 min
Nov 9, 11:39 PM CST	Severe Thunderstorm Warning	TSA	Delaware, Ottawa	51 min
Nov 9, 11:39 PM CST	Severe Thunderstorm Warning	TSA	Adair	51 min
Nov 9, 11:39 PM CST	Severe Thunderstorm Warning	TSA	Cherokee	51 min
Nov 9, 11:54 PM CST	Tornado Warning	TSA	Latimer, LeFlore	36 min
Nov 9, 11:59 PM CST	Tornado Warning	TSA	Haskell	31 min
Nov 10, 12:08 AM CST	Severe Thunderstorm Warning	TSA	Choctaw, Pushmataha	37 min
Nov 10, 12:15 AM CST	Tornado Warning	TSA	LeFlore	45 min
Nov 10, 12:22 AM CST	Tornado Warning	TSA	Adair, Sequoyah	38 min

Nearby

Tornado Warnings in Oklahoma, 1998 Every tornado warning in 1998 Tornadoes 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.