Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 3, NWS Tulsa, OK

February 9, 2001Muskogee County, Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at Feb 9, 2001, 2:31 AM CST for Muskogee County, Oklahoma. It was in force for 44 min. 5 reports came from inside the area while it was in force.

The area

The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties, with what was reported inside it.

The facts

Issued
Feb 9, 2001, 2:31 AM CST (08:31 UTC)
Expired
Feb 9, 2001, 3:15 AM CST
In force
44 min
Issued by
NWS Tulsa, OK
Area
Whole counties; the outline is the Mesonet’s reconstruction

County Muskogee County, OK

The radar

The Tulsa radar (KINX), 44 km from the middle of the area, began a volume at 08:32 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

TimeReportWhereRemark
Feb 9, 2:35 AM CSTThunderstorm Wind 52 EBald Hill, OK60 mile an hour thunderstorm winds blew a fence down.
Feb 9, 2:40 AM CSTThunderstorm Wind 57 ELeonard, OK
Feb 9, 3:00 AM CSTThunderstorm WindWagoner, OKThunderstorm winds blew a few trees down and did some roof damage to buildings in Sequoyah State Park.
Feb 9, 3:00 AM CSTThunderstorm WindMuskogee, OKThunderstorm winds destroyed some transmission towers.
Feb 9, 3:15 AM CSTThunderstorm WindMuskogee, OKThunderstorm winds destroyed a barn.

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 nearest sounding before it

Norman, OK (KOUN), launched 00:00Z, 8.5 hours before the alert went out and 165 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 2001-02-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 886 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 2001-02-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 232 square meters per square second.1939587897117Sfc1 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
886 J/kg
Mixed-layer CIN
-20 J/kg
Mixed-layer LCL
590 m above ground
0-6 km bulk shear
50 kt
0-1 km storm-relative helicity
232 m²/s²
0-3 km storm-relative helicity
226 m²/s²
Significant tornado parameter
1.0
Supercell composite
4.6

Open this sounding in Storm Lab

The text

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

000 
WUUS54 KTSA 090832
SVRTUL
OKC101-111-143-145-090915-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TULSA OK
231 AM CST FRI FEB 9 2001

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  MUSKOGEE COUNTY IN EAST CENTRAL OKLAHOMA   
  NORTHEASTERN OKMULGEE COUNTY IN NORTHEAST OKLAHOMA   
  SOUTHEASTERN TULSA COUNTY IN NORTHEAST OKLAHOMA
  WAGONER COUNTY IN NORTHEAST OKLAHOMA

* UNTIL 315 AM CST

* AT 231 AM CST...DOPPLER RADAR INDICATED SEVERE THUNDERSTORMS ALONG
  A LINE EXTENDING FROM 7 MILES NORTHWEST OF PRESTON TO 3 MILES
  SOUTHWEST OF MORRIS...MOVING EAST AT 50 MPH.

* SOME LOCATIONS NEAR THE PATH OF THESE STORMS INCLUDE...HASKELL...
  FORT GIBSON...TAFT...BRAGGS...BOYNTON...COUNCIL HILL...MUSKOGEE...
  COWETA...STONEBLUFF...OKAY...PORTER...TULLAHASSEE...WAGONER...BALD
  HILL...PRESTON...MORRIS AND OKMULGEE.

DAMAGING WINDS MAY OCCUR UP TO 10 MILES AHEAD OF THE HEAVY RAIN. 
MOVE TO A SAFE PLACE NOW.

A TORNADO WATCH IS ALSO IN EFFECT. TORNADOES CAN DEVELOP SUDDENLY
FROM SEVERE THUNDERSTORMS. BE ALERT FOR RAPIDLY CHANGING WEATHER
CONDITIONS.

LAT...LON 3587 9615 3549 9592 3568 9513 3608 9528

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 9, 1:59 AM CSTSevere Thunderstorm WarningTSAOkfuskee, Okmulgee46 min
Feb 9, 2:31 AM CSTSevere Thunderstorm WarningTSAOkmulgee, Tulsa, Wagoner44 min
Feb 9, 3:01 AM CSTSevere Thunderstorm WarningTSAMayes29 min
Feb 9, 3:07 AM CSTSevere Thunderstorm WarningTSAChoctaw, Pushmataha53 min
Feb 9, 3:07 AM CSTSevere Thunderstorm WarningTSALatimer, Pittsburg53 min
Feb 9, 3:15 AM CSTSevere Thunderstorm WarningTSADelaware30 min
Feb 9, 3:25 AM CSTSevere Thunderstorm WarningTSAAdair, Cherokee50 min
Feb 9, 3:41 AM CSTSevere Thunderstorm WarningTSADelaware49 min
Feb 9, 3:56 AM CSTSevere Thunderstorm WarningTSAHaskell, Latimer, LeFlore, Pushmataha64 min
Feb 9, 3:56 AM CSTSevere Thunderstorm WarningTSAChoctaw64 min
Feb 9, 4:11 AM CSTSevere Thunderstorm WarningTSASequoyah49 min
Feb 9, 4:15 AM CSTSevere Thunderstorm WarningTSAAdair60 min
Feb 9, 4:32 AM CSTSevere Thunderstorm WarningTSALeFlore, Sequoyah58 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 2001Every severe thunderstorm warning in 2001

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.