Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 407, NWS Tulsa, OK

November 18, 2003Tulsa County, Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at Nov 18, 2003, 9:56 AM CST for Tulsa 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 as issued.

The facts

Issued
Nov 18, 2003, 9:56 AM CST (15:56 UTC)
Expired
Nov 18, 2003, 10:30 AM CST
In force
34 min
Issued by
NWS Tulsa, OK
Area
Counties, with a storm outline in the text

County Tulsa County, OK

The radar

The Tulsa radar (KINX), 39 km from the middle of the area, began a volume at 15:53 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.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The nearest sounding before it

Norman, OK (KOUN), launched 12:00Z, 3.9 hours before the alert went out and 163 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 12:00Z on 2003-11-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 12:00Z on 2003-11-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -15 square meters per square second.19395878Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1079 m above ground
0-6 km bulk shear
53 kt
0-1 km storm-relative helicity
-15 m²/s²
0-3 km storm-relative helicity
93 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.

000 
WUUS54 KTSA 181602
SVRTUL
OKC143-181630-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TULSA OK
ISSUED BY NWS NORMAN OK
955 AM CST TUE NOV 18 2003

THE NATIONAL WEATHER SERVICE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  TULSA COUNTY IN NORTHEAST OKLAHOMA

* UNTIL 1030 AM CST

* AT 955 AM CST...DOPPLER RADAR DETECTED A SEVERE THUNDERSTORM 5
  MILES WEST OF TULSA...MOVING NORTHEAST AT 20 MPH.

* LOCATIONS IN THE WARNING INCLUDE TULSA

HAIL UP TO THE SIZE OF NICKELS IS LIKELY WITH THIS SEVERE
THUNDERSTORM.

LAT...LON 3616 9613 3600 9603 3613 9575 3624 9592

CJS

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 18, 3:25 AM CST, 6 hours 31 minutes earlier.

Area forecast discussion, Nov 18, 3:25 AM CST, 6 hours 31 minutes before
EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TULSA OKLAHOMA
325 AM CST TUE NOV 18 2003

SFC LOW CURRENTLY LOCATED NORTH OKC WITH COLD FRONT EXTENDING FROM
MEDFORD...SOUTHWEST TO NEAR ALTUS.  MAIN CONVECTIVE COMPLEX HAS
SHIFTED EAST THIS MORNING.   STILL EXPECT A PRETTY GOOD CHANCE FOR
LIGHT RAIN SHOWERS BEHIND THE FRONT TODAY...AS 500 MB TROUGH AXIS
MOVES THROUGH.  BEST CHANCES WILL BE ACROSS FAR NORTHEAST OKLAHOMA
AND NORTHWEST ARKANSAS.  COLD FRONT SHOULD PUSH SOUTHEAST OF FA BY
MID AFTERNOON WITH SKIES CLEARING FROM NORTHWEST TO SOUTHEAST THIS
EVENING.  LOW TEMPERATURES WILL BE SOMEWHAT PROBLEMATIC NEXT COUPLE
OF NIGHTS...MAINLY DUE TO UNCERTAINTY IN DWPT DISTRIBUTIONS FROM THE
RECENT RAINFALL.

SLIGHT WARM UP EXPECTED ON WEDNESDAY AS SURFACE RIDGE BEGINS TO
SHIFT SOUTHEAST OF AREA.  WILL LIKELY SEE SOME PATCHY FOG DEVELOP
WEDNESDAY NIGHT WITH LIGHT WINDS/CLEAR SKIES/SATURATED GROUND.  NO
MAJOR CHANGES TO THE EXTENDED.  DID BUMP UP TEMPERATURES FRIDAY AND
SATURDAY AHEAD OF NEXT STRONG COLD FRONT...WHICH IS EXPECTED EARLY
SUNDAY.  THIS WILL ALSO BE OUR NEXT CHANCE FOR SIGNIFICANT
PRECIPITATION.

PRELIM NUMBERS:

TUL    64   41   66   45 /  50   10    0    5
FSM    70   42   65   42 /  60   30    0    5
MLC    66   40   66   43 /  50   10    0    5
BVO    62   36   64   38 /  40   10    0    5
FYV    64   41   60   39 /  60   30    0    5
BYV    64   40   61   43 /  60   30    0    5
MKO    64   41   66   42 /  60   10    0    5
MIO    61   39   62   42 /  60   10    0    5
F10    64   40   66   43 /  50   10    0    5
HHW    69   43   66   45 /  50   10    0    5

FORECAST ID= 12

.TSA...
AR...NONE.
OK...NONE.
Hazardous weather outlook, Nov 18, 6:00 AM CST, 3 hours 56 minutes before
ARZ001-002-010-011-019-020-029-OKZ049-053>076-191200-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE TULSA OK
600 AM CST TUE NOV 18 2003

THIS OUTLOOK IS FOR NORTHWEST AND WEST CENTRAL ARKANSAS AS WELL AS
MUCH OF EASTERN OKLAHOMA.

.DAY ONE...THROUGH TONIGHT

A COLD FRONT WILL MOVE ACROSS NORTHEAST OKLAHOMA THIS MORNING...AND
ACROSS SOUTHEAST OKLAHOMA AND NORTHWEST ARKANSAS THIS AFTERNOON.
AREAS OF LIGHT RAIN WILL DEVELOP BEHIND THE FRONT...HOWEVER THE
THREAT OF THUNDERSTORMS WILL BE MINIMAL.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

THUNDERSTORM CHANCES WILL BEGIN TO INCREASE SATURDAY INTO SUNDAY AS
A STRONG UPPER TROUGH MOVES INTO THE CENTRAL PLAINS.

.SPOTTER / EMERGENCY MANAGEMENT ACTION STATEMENT...
SPOTTER ACTIVATION IS NOT EXPECTED THROUGH TONIGHT.

WARNING PROBABILITIES FOR SEVERE THUNDERSTORMS AND TORNADOES CAN BE
FOUND IN THE OUTLOOK SECTION AT: WWW.SRH.NOAA.GOV/TULSA. GIVEN
PROBABILITIES REPRESENT THE POTENTIAL FOR A WARNING TO BE ISSUED AT
YOUR LOCATION.

The office that day

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

IssuedProductOfficeCountiesLasted
Nov 18, 10:02 AM CSTSevere Thunderstorm WarningTSATulsa28 min
Nov 18, 10:21 AM CSTSevere Thunderstorm WarningTSACreek, Osage, Pawnee39 min
Nov 18, 10:26 AM CSTSevere Thunderstorm WarningTSARogers, Wagoner24 min
Nov 18, 10:34 AM CSTSevere Thunderstorm WarningTSACraig41 min
Nov 18, 10:35 AM CSTSevere Thunderstorm WarningTSATulsa25 min
Nov 18, 10:48 AM CSTSevere Thunderstorm WarningTSARogers42 min
Nov 18, 10:51 AM CSTSevere Thunderstorm WarningTSAOttawa34 min
Nov 18, 10:53 AM CSTSevere Thunderstorm WarningTSACraig52 min
Nov 18, 10:58 AM CSTSevere Thunderstorm WarningTSACreek, Tulsa47 min
Nov 18, 11:26 AM CSTSevere Thunderstorm WarningTSAOttawa34 min
Nov 18, 11:30 AM CSTSevere Thunderstorm WarningTSAMayes, Rogers45 min
Nov 18, 11:56 AM CSTSevere Thunderstorm WarningTSAWagoner49 min
Nov 18, 12:07 PM CSTSevere Thunderstorm WarningTSAOkmulgee38 min
Nov 18, 12:09 PM CSTSevere Thunderstorm WarningTSAMayes51 min
Nov 18, 12:18 PM CSTSevere Thunderstorm WarningTSATulsa27 min
Nov 18, 12:35 PM CSTSevere Thunderstorm WarningTSAMuskogee40 min
Nov 18, 1:16 PM CSTSevere Thunderstorm WarningTSACherokee, Haskell, McIntosh, Muskogee, Sequoyah44 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 2003Every severe thunderstorm warning in 2003

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.