Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 46, NWS Tulsa, OK

April 16, 2003Okmulgee County, Tulsa County, Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at Apr 16, 2003, 1:46 AM CDT for Okmulgee County, Tulsa County, Oklahoma. It was in force for 44 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: Apr 16, 2003, 1:46 AM CDT (06:46 UTC)
Expired: Apr 16, 2003, 2:30 AM CDT
In force: 44 min
Issued by: NWS Tulsa, OK
Area: Counties, with a storm outline in the text

Counties Okmulgee County, OK, Tulsa County, OK

The radar

The Tulsa radar (KINX), 47 km from the middle of the area, began a volume at 06:45 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 watch it was issued in

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

Issued	Product	Office	Lasted
Apr 15, 11:20 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Norman, OK (KOUN), launched 00:00Z, 6.8 hours before the alert went out and 150 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: 15 J/kg
Mixed-layer CIN: -337 J/kg
Mixed-layer LCL: 1137 m above ground
0-6 km bulk shear: 65 kt
0-1 km storm-relative helicity: 380 m²/s²
0-3 km storm-relative helicity: 627 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 160646
SVRTUL
OKC111-143-160730-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TULSA OK
146 AM CDT WED APR 16 2003

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN OKMULGEE COUNTY IN NORTHEAST OKLAHOMA
  SOUTHERN TULSA COUNTY IN NORTHEAST OKLAHOMA

* UNTIL 230 AM CDT

* AT 146 AM CDT...DOPPLER RADAR INDICATED SEVERE THUNDERSTORMS ALONG
  A LINE EXTENDING FROM 7 MILES WEST OF TULSA TO 8 MILES SOUTHWEST OF
  GLENPOOL TO 3 MILES SOUTH OF BEGGS...MOVING NORTHEAST AT 55 MPH.

* SOME LOCATIONS NEAR THE PATH OF THESE STORMS INCLUDE...OKMULGEE...
  PRESTON...BEGGS...BALD HILL...TULSA...BIXBY...JENKS AND GLENPOOL.

HAIL TO THE SIZE OF PENNIES AND WIND GUSTS TO 60 MPH CAN BE EXPECTED
IN THE WARNED AREA. STAY INDOORS AND AWAY FROM WINDOWS UNTIL THE
STORM HAS PASSED.

LAT...LON 3605 9605 3554 9615 3565 9576 3621 9583

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 Apr 16, 1:42 AM CDT, 4 minutes earlier.

Area forecast discussion, Apr 16, 1:42 AM CDT, 4 minutes before

EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TULSA OKLAHOMA
142 AM CDT WED APR 16 2003

...MESOSCALE UPDATE...

BROKEN LINE OF STRONG OCCASIONALLY SEVERE THUNDERSTORMS CONTINUES
TO LIFT NE AT 50 MPH OVER NERN/ECNTRL OK. THIS ACTIVITY IS EXPECTED
TO SLOWLY WEAKEN OVER THE NEXT FEW HOURS AS IT ENCOUNTERS WEAKER
ELEVATED INSTABILITY. HOWEVER...DUE TO THE VERY FAST FORWARD SPEED
AND IMPRESSIVE LOW-LEVEL SHEAR...ISOLATED SEVERE WIND GUSTS WILL
REMAIN POSSIBLE.

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

Hazardous weather outlook, Apr 15, 9:00 PM CDT, 4 hours 46 minutes before

ARZ001-002-010-011-019-020-029-OKZ049-053>076-161100-

HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE TULSA OK
900 PM CDT TUE APR 15 2003

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

.DAY ONE...TONIGHT

SEVERE WEATHER OUTLOOK

...CHANCE FOR SEVERE THUNDERSTORMS OVERNIGHT...

A LINE OF STRONG TO SEVERE THUNDERSTORMS CONTINUES TO MOVE EAST INTO
PORTIONS OF CENTRAL OKLAHOMA THIS EVENING. THIS LINE IS EXPECTED TO
MOVE INTO EASTERN OKLAHOMA AROUND MIDNIGHT AND BEGIN TO WEAKEN AS
STORMS ENCOUNTER A MORE STABLE AIRMASS.  STRONG SHEAR PROFILES
HOWEVER SUGGEST...THAT A FEW OF THE STRONGER STORMS COULD PRODUCE
DAMAGING STRAIGHT LINE WINDS...PRIMARILY WEST OF A TULSA...EUFAULA
...WHITESBORO LINE.

UPDATED WARNING PROBABILITIES WILL BE OUT SHORTLY. SEVERE
THUNDERSTORM AND TORNADO WARNING PROBABILITIES CAN BE FOUND IN THE
OUTLOOKS SECTION AT: WWW.SRH.NOAA.GOV/TULSA. GIVEN PROBABILITIES
REPRESENT THE POTENTIAL FOR A WARNING TO BE ISSUED AT YOUR LOCATION.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY
THE NEXT CHANCE FOR THUNDERSTORMS WILL ARRIVE BY FRIDAY AND CONTINUE
THROUGH EASTER DAY AS AN UPPER LEVEL DISTURBANCE APPROACHES THE
AREA. FORECAST MOISTURE RETURN AND WIND PROFILES APPEAR SUFFICIENT
FOR A SLIGHT RISK OF SEVERE THUNDERSTORMS DURING THIS PERIOD.

.SPOTTER / EMERGENCY MANAGEMENT ACTION STATEMENT...
SPOTTER ACTIVATION MAY BE REQUIRED ACROSS EASTERN OKLAHOMA BY LATE
EVENING.

ADDITIONAL WEATHER INFORMATION CAN BE FOUND AT...
WWW.SRH.NOAA.GOV/TULSA

In the hours before

Special weather statement, Apr 15, 11:16 PM CDT, 2 hours 30 minutes before

OKZ054>076-161000-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
1116 PM CDT TUE APR 15 2003

THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH
#125 UNTIL 500 AM CDT WEDNESDAY MORNING FOR THE FOLLOWING AREAS:

IN OKLAHOMA THIS WATCH INCLUDES 23 COUNTIES...
IN EAST CENTRAL OKLAHOMA:

CHEROKEE              MUSKOGEE              OKFUSKEE
SEQUOYAH

IN NORTHEAST OKLAHOMA:

ADAIR                 CRAIG                 CREEK
DELAWARE              MAYES                 NOWATA
OKMULGEE              OSAGE                 OTTAWA
PAWNEE                ROGERS                TULSA
WAGONER               WASHINGTON

IN SOUTHEAST OKLAHOMA:

HASKELL               LATIMER               LE FLORE
MCINTOSH              PITTSBURG

THIS INCLUDES THE CITIES OF BARTLESVILLE...BRISTOW...BROKEN ARROW...
CLAREMORE...EUFAULA...JAY...MCALESTER...MIAMI...MUSKOGEE...NOWATA...
OKEMAH...OKMULGEE...PAWHUSKA...PAWNEE...POTEAU...PRYOR...SALLISAW...
SAND SPRINGS...STIGLER...STILWELL...TAHLEQUAH...TULSA...VINITA...
WAGONER AND WILBURTON.

Special weather statement, Apr 15, 11:47 PM CDT, 1 hour 59 minutes before

OKZ054-059-160545-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
1147 PM CDT TUE APR 15 2003

...SIGNIFICANT WEATHER ALERT IN EFFECT FOR OSAGE AND PAWNEE COUNTIES
   UNTIL 1245 AM CDT...

AT 1147 PM CDT...DOPPLER RADAR INDICATED STRONG THUNDERSTORMS ALONG A
LINE EXTENDING FROM 6 MILES NORTH OF PAWNEE TO 12 MILES SOUTHWEST OF
MARAMEC...MOVING NORTHEAST AT 45 MPH. THESE STORMS WILL BE CAPABLE OF
PRODUCING SMALL HAIL AND WIND GUSTS TO 40 MPH. THE COMMUNITIES OF
PAWHUSKA...HOMINY...WYNONA...PERSHING...PAWNEE...MARAMEC...
BLACKBURN...SKEDEE...CLEVELAND AND RALSTON WILL BE AFFECTED BY THESE
STORMS THROUGH 1245 AM CDT. RESIDENTS IN THESE AREAS SHOULD REMAIN
ALERT IN CASE WARNINGS ARE ISSUED.

Local storm report, Apr 16, 12:37 AM CDT, 1 hour 9 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
1237 AM CDT WED APR 16 2003

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

1211 AM    CLEVELAND                 OK   59 MPH TSTORM WIND
04/16/03   PAWNEE

CKH

Local storm report, Apr 16, 1:08 AM CDT, 38 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
0108 AM CDT WED APR 16 2003

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

1241 AM    BRISTOW                   OK   60 MPH TSTORM WIND
04/16/03   CREEK

CKH

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 15, 11:59 PM CDT	Severe Thunderstorm Warning	TSA	Osage, Pawnee	61 min
Apr 16, 12:15 AM CDT	Severe Thunderstorm Warning	TSA	Creek	45 min
Apr 16, 12:48 AM CDT	Severe Thunderstorm Warning	TSA	Tulsa	57 min
Apr 16, 12:56 AM CDT	Severe Thunderstorm Warning	TSA	Washington	64 min
Apr 16, 12:58 AM CDT	Severe Thunderstorm Warning	TSA	Creek, Osage	32 min
Apr 16, 1:16 AM CDT	Severe Thunderstorm Warning	TSA	Okfuskee	44 min
Apr 16, 1:27 AM CDT	Severe Thunderstorm Warning	TSA	Nowata, Rogers	48 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 2003 Every 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.