Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 37, NWS Tulsa, OK

February 27, 2001Latimer County, Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at Feb 27, 2001, 1:41 AM CST for Latimer County, Oklahoma. It was in force for 34 min. No storm report in the archive falls 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.

The facts

Issued: Feb 27, 2001, 1:41 AM CST (07:41 UTC)
Expired: Feb 27, 2001, 2:15 AM CST
In force: 34 min
Issued by: NWS Tulsa, OK
Area: Whole counties; the outline is the Mesonet’s reconstruction

County Latimer County, OK

The radar

The Western Arkansas radar (KSRX), 109 km from the middle of the area, began a volume at 07:42 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.

The nearest sounding before it

Norman, OK (KOUN), launched 00:00Z, 7.7 hours before the alert went out and 186 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 2587 m above ground
0-6 km bulk shear: 53 kt
0-1 km storm-relative helicity: 25 m²/s²
0-3 km storm-relative helicity: 177 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.

292 
WUUS54 KTSA 270742
SVRTUL
OKC077-270815-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TULSA OK
141 AM CST TUE FEB 27 2001

THE NATIONAL WEATHER SERVICE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  LATIMER COUNTY IN SOUTHEAST OKLAHOMA

* UNTIL 215 AM CST

* AT 141 AM CST...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 6
  MILES SOUTHWEST OF HIGGINS...MOVING NORTHEAST AT 45 MPH.

* SOME LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...RED OAK...
  DAMON...HIGGINS AND WILBURTON.

HAIL TO THE SIZE OF NICKELS AND WIND GUSTS TO 60 MPH CAN BE EXPECTED IN
THE WARNED AREA.

LAT...LON 3475 9564 3462 9548 3492 9505 3510 9527

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 Feb 26, 9:45 PM CST, 3 hours 56 minutes earlier.

Area forecast discussion, Feb 26, 9:45 PM CST, 3 hours 56 minutes before

EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TULSA OK
945 PM CST MON FEB 26 2001

LARGE AREA OF THUNDERSTORMS MOVING NORTHEAST OVER EAST TEXAS AND
WESTERN LOUISIANA SHOULD NOT EFFECT THE AREA.  THE 00Z ETA/MESOETA
INDICATE THAT THIS AREA OF DISTURBED WEATHER SHOULD DISSIPATE OVER
THE NEXT COUPLE OF HOURS AS LOW-LEVEL JET CRANKS UP OVER WEST
TEXAS.  AREA RADARS ALREADY SHOWING SCATTERED SHOWER AND
THUNDERSTORM DEVELOPMENT OVER WESTERN OKLAHOMA WITH THE DEVELOPING
LOW-LEVEL JET.  DEVELOPMENT IS EXPECTED TO SPREAD EASTWARD TOWARD
EASTERN OKLAHOMA LATE TONIGHT...AS THE LOW-LEVEL JET VEERS AND
LOW-LEVEL MOISTURE RETURNS FOR REAL.  THE 00Z ETA/MESOETA INDICATE
THAT THE PRECIPITATION WILL BE SLOW TO SPREAD ACROSS THE AREA WITH
SOUTHEAST OKLAHOMA BEING THE MOST LIKELY AREA TO RECEIVE MEASURABLE
PRECIPITATION BY 12Z.  WILL BACK OFF ON CATEGORICAL POPS
OVERNIGHT...EXCEPT FOR SOUTHEAST OKLAHOMA.  IT IS UNLIKELY AT THIS
TIME THAT NORTHWEST ARKANSAS OR FAR NORTHEAST OKLAHOMA WILL SEE ANY
RAINFALL BEFORE DAYBREAK...SO HAVE KNOCKED POPS DOWN TO CHANCE IN
THOSE AREAS.  LIKELY POPS WILL FILL THE VOID FROM FSM TO TUL.
FORECAST SHOWALTER INDICES SHOW LIMITED CHANCE OF THUNDER OVERNIGHT
...PRIMARILY OVER SOUTHERN HALF OF THE AREA.  WILL REMOVE MENTION OF
THUNDER FROM THE TULSA AND FAYETTEVILLE ZONES.

UPDATED ZONES ALREADY ISSUED.

FCSTID = 19

.TSA...
AR...NONE.
OK...NONE.

Nearby

Severe Thunderstorm Warnings in Oklahoma, 2001 Every 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.