Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 489, NWS Tulsa, OK

November 9, 1998LeFlore County, Sequoyah County, Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at Nov 9, 1998, 11:36 PM CST for LeFlore County, Sequoyah County, Oklahoma. It was in force for 39 min. 6 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, 11:36 PM CST (05:36 UTC)
Expired: Nov 10, 1998, 12:15 AM CST
In force: 39 min
Issued by: NWS Tulsa, OK
Area: Whole counties

Counties LeFlore County, OK, Sequoyah County, OK

The radar

The Western Arkansas radar (KSRX), 35 km from the middle of the area, began a volume at 05:36 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 10, 12:00 AM CST	Thunderstorm Wind	Sallisaw, OK	A large tree was blown down across a road.
Nov 10, 12:10 AM CST	Thunderstorm Wind	Bokoshe, OK	Several large trees were blown over.
Nov 10, 12:10 AM CST	Thunderstorm Wind	Arkoma, OK	Shingles were blown off roofs.
Nov 10, 12:15 AM CST	Thunderstorm Wind	Spiro, OK	A wood-frame building was destroyed on S. Cherry Street. Tree limbs were also scattered through east Spiro.
Nov 10, 12:20 AM CST	Thunderstorm Wind	Panama, OK	The roof was blown off of a home near the power plant. In town, fences were blown over and marquee signs were pushed into the streets. At least 15 power poles were blown down throughout the Kiamichi Electric Cooperative's service area.
Nov 10, 12:20 AM CST	Thunderstorm Wind	Poteau, OK	Trees and limbs were blown down in Poteau and throughout LeFlore County.

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, 5.6 hours before the alert went out and 207 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

As transmitted, in the capitals the NWS used until 2016.

446 
WUUS54 KTSA 100540 RRB
SVRTUL
OKC079-135-100615-

BULLETIN - IMMEDIATE BROADCAST REQUESTED...CORRECTED UGC CODING...
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TULSA OK
1136 PM CST MON NOV 9 1998

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR
     SEQUOYAH COUNTY IN EAST CENTRAL OKLAHOMA
     LE FLORE COUNTY IN SOUTHEAST OKLAHOMA

* UNTIL 1215 AM CST

* AT 1135 PM CST SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
  EXTENDING FROM 2 MILES WEST OF HUGHES TO 6 MILES SOUTH OF VIAN TO 8
  MILES NORTH OF BOX...MOVING EAST AT 45 MILES PER HOUR.

* SOME LOCATIONS AFFECTED INCLUDE...SALLISAW...POTEAU...MULDROW...AND
  SPIRO.
  
HAIL TO THE SIZE OF DIMES AND WIND GUSTS TO 65 MPH CAN BE EXPECTED 
IN THE WARNED AREA.

BE ALERT FOR RAPIDLY CHANGING WEATHER CONDITIONS AS STORMS APPROACH.

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Tulsa, OK wrote its last area forecast discussion before this severe thunderstorm warning went out at Nov 9, 8:00 PM CST, 3 hours 36 minutes earlier.

Area forecast discussion, Nov 9, 8:00 PM CST, 3 hours 36 minutes before

EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TULSA OK
800 PM CST MON NOV 9 1998

SQUALL LINE WILL ENTER NW ZONES WITHIN THE HOUR AND EXPECT
IT TO CONTINUE ACROSS ALL OF THE AREA. GOING FORECAST LOOKS
OK AND WILL NOT UPDATE PRIOR TO 10 PM. WILL UPDATE ZONES
AS LINE OF STORMS CLEARS...LIKELY AROUND MIDNIGHT.
WIND ADVISORY LOOKS GOOD. /13

.TUL...
OK...WIND ADVISORY FOR TONIGHT FOR ZONES OKZ049...OKZ053>077.

AR...WIND ADVISORY FOR TONIGHT FOR ZONES ARZ001>002...ARZ010>011...
ARZ019>020...ARZ029.

In the hours before

Local storm report, Nov 9, 10:42 PM CST, 54 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
1042 PM CST MON NOV 09 1998

TIME(CST)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

1040 PM    NOWATA                    OK   60 MPH TSTM GUST
11/09/98   NOWATA

Local storm report, Nov 9, 11:06 PM CST, 30 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
1106 PM CST MON NOV 09 1998

TIME(CST)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

1030 PM    WELEETKA                  OK   WIND DAMAGE
11/09/98   OKFUSKEE                       SEVERAL LARGE TREE LIMBS
                                          DOWN

1055 PM    CHELSEA                   OK   60 MPH TSTM GUST
11/09/98   ROGERS

Local storm report, Nov 9, 11:17 PM CST, 19 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
1117 PM CST MON NOV 09 1998

TIME(CST)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

1100 PM    BIG CABIN                 OK   60 MPH TSTM GUST
11/09/98   CRAIG

1113 PM    MUSKOGEE                  OK   60 MPH TSTM GUST
11/09/98   MUSKOGEE

Local storm report, Nov 9, 11:19 PM CST, 17 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
1119 PM CST MON NOV 09 1998

TIME(CST)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

1050 PM    HENRYETTA                 OK   60 MPH TSTM GUST
11/09/98   OKMULGEE

Local storm report, Nov 9, 11:25 PM CST, 11 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
1125 PM CST MON NOV 09 1998

TIME(CST)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

1115 PM    DOW                       OK   TORNADO
11/09/98   PITTSBURG                      PUBLIC REPORTED A BRIEF
                                          TORNADO TOUCHDOWN IN DOW

Local storm report, Nov 9, 11:36 PM CST, 0 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
1136 PM CST MON NOV 09 1998

TIME(CST)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

1120 PM    BERNICE                   OK   60 MPH TSTM GUST
11/09/98   DELAWARE

1125 PM    2 E MUSKOGEE              OK   60 MPH TSTM GUST
11/09/98   MUSKOGEE

1125 PM    9 W JAY                   OK   .75 INCH HAIL
11/09/98   DELAWARE

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, 11:39 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, 11:52 PM CST	Tornado Warning	TSA	Haskell, Sequoyah	38 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

Severe Thunderstorm Warnings in Oklahoma, 1998 Every severe thunderstorm warning 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.