Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 679, NWS Norman, OK

August 3, 2003Atoka County, Coal County, Johnston County, Oklahoma

NWS Norman, OK issued this severe thunderstorm warning at Aug 3, 2003, 9:49 AM CDT for Atoka County, Coal County, Johnston County, Oklahoma. It was in force for 56 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: Aug 3, 2003, 9:49 AM CDT (14:49 UTC)
Expired: Aug 3, 2003, 10:45 AM CDT
In force: 56 min
Issued by: NWS Norman, OK
Area: Counties, with a storm outline in the text

Counties Atoka County, OK, Coal County, OK, Johnston County, OK

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, 2.8 hours before the alert went out and 148 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: 1245 J/kg
Mixed-layer CIN: -301 J/kg
Mixed-layer LCL: 1439 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: 214 m²/s²
0-3 km storm-relative helicity: 292 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.3

Open this sounding in Storm Lab

The text

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

012 
WUUS54 KOUN 031449
SVROKC
OKC005-029-069-031545-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORMAN OK
948 AM CDT SUN AUG 3 2003

THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  ATOKA COUNTY IN SOUTHEAST OKLAHOMA
  COAL COUNTY IN SOUTHEAST OKLAHOMA
  JOHNSTON COUNTY IN SOUTHEAST OKLAHOMA

* UNTIL 1045 AM CDT

* AT 948 AM CDT...DOPPLER RADAR DETECTED A LINE OF SEVERE
  THUNDERSTORMS FROM 3 MILES EAST OF STRINGTOWN TO 8 MILES 
  NORTHWEST OF BROMIDE...MOVING SOUTH AT 40 MPH.

* LOCATIONS IN THE WARNING INCLUDE ATOKA...BROMIDE...CANEY...
  COLEMAN...FILLMORE...LANE...LEHIGH...MCGEE CREEK LAKE...
  MILBURN...OLNEY...SOUTHERN ATOKA RESERVOIR...
  STRINGTOWN...AND TUSHKA

HAIL UP TO THE SIZE OF NICKELS AND WINDS TO 70 MPH ARE LIKELY.

LAT...LON 3448 9583 3453 9656 3418 9660 3415 9648
          3419 9582

$$
SN

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 Norman, OK wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 3, 4:30 AM CDT, 5 hours 19 minutes earlier.

Area forecast discussion, Aug 3, 4:30 AM CDT, 5 hours 19 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OKLAHOMA
430 AM CDT SUN AUG 3 2003

CCF NUMBERS ATTACHED...

CURRENT ACTIVITY SHOULD FOR THE MOST PART STAY EAST OF
CWA...ALTHOUGH OUTFLOW WILL AID IN SCATTERED DEVELOPMENT THROUGH MID
MORNING. CHANCE POPS WILL CONTINUE THROUGH THE DAY WITH BOUNDARIES
AND HEATING...WITH FAVORED AREA FROM WESTERN TO SOUTHEAST ZONES NEAR
WHAT APPEARS TO BE WASHING STATIONARY FRONT.

POST-MIDNIGHT ACTIVITY EXPECTED ONCE AGAIN TONIGHT INTO MONDAY
MORNING...WITH DAYTIME PERIODS MONDAY EXPECTED TO BE INFLUENCED BY
WHAT APPEARS TO BE UNDERFORECASTED S/WV TROF CURRENTLY OVER THE
NEVADA AREA. WILL BUMP POPS UP FOR LATE TONIGHT THROUGH MONDAY AND
LOWER TEMPS A BIT FOR MONDAY. DEPENDING ON WHERE BEST THERMAL RIBBON
SETS UP...IT COULD BE ANOTHER NO-SHOW FOR EXTREME SOUTHWEST OKLAHOMA
AND PORTIONS OF NORTH TEXAS. HIGHEST POPS WILL BE OVER CENTRAL AND
EASTERN PORTIONS OF CWA. SOME LINGERING RAIN ACTIVITY POSSIBLE
TUESDAY...BUT LOOK FOR MAIN SHOW MONDAY-MONDAY NIGHT.

AS ADVERTISED IN PREVIOUS FORECASTS...MID/UPPER LEVEL RIDGE PROGD TO
STRENGTHEN OVER SRN/CENTRAL HIGH PLAINS FROM MID-WEEK ON. DRY
FORECAST WITH WARMING TREND WILL GO UNCHANGED.

OKC   95   74   94   74  / 40   40   40   30
HBR  101   74   98   74  / 30   40   30   30
SPS  103   76  100   76  / 30   40   30   30
GAG   99   71   96   71  / 30   40   20   30
PNC   94   74   94   73  / 80   40   40   30
DUA   95   75   94   75  / 50   30   40   30

FORECAST ID = 11

.OUN...
OK...NONE.
TX...NONE.

Hazardous weather outlook, Aug 3, 6:52 AM CDT, 2 hours 57 minutes before

OKZ004>048-050>052-TXZ083>090-031700-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NORMAN OK
652 AM CDT SUN AUG 3 2003

THIS HAZARDOUS WEATHER OUTLOOK COVERS NORTHERN...WESTERN...
CENTRAL...AND SOUTHERN OKLAHOMA...AND WESTERN NORTH TEXAS.

.DAY ONE...TODAY AND TONIGHT...

THUNDERSTORM OUTLOOK...
THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS THROUGH TONIGHT
ACROSS OKLAHOMA.

LOCATION...
THE SLIGHT RISK AREA IS ACROSS ALL OF OKLAHOMA... BUT DOES NOT
INCLUDE WESTERN NORTH TEXAS.

TIMING...
A FEW SEVERE STORMS MAY OCCUR WITH THE STORM COMPLEX OVER THE
EASTERN HALF OF OKLAHOMA EARLY THIS MORNING.  ADDITIONAL SEVERE
STORM DEVELOPMENT IS POSSIBLE THIS AFTERNOON THROUGH LATE TONIGHT.

IMPACTS...
HAIL TO ONE AND A HALF INCHES IN DIAMETER AND WIND GUSTS TO 70 MPH
MAY OCCUR WITH THE STRONGEST STORMS.  HAIL AND WIND OF THAT NATURE
CAN DAMAGE VEHICLES AND VEGETATION.

RECOMMENDED ACTIONS...
STORM SPOTTER GROUPS AND EMERGENCY MANAGEMENT PERSONNEL ACROSS THE
RISK AREA SHOULD PLAN FOR SEVERE WEATHER OPERATIONS EARLY THIS
MORNING... AND AGAIN FROM MID-AFTERNOON INTO THE OVERNIGHT HOURS.

DISCUSSION...
OVERNIGHT STORMS HAVE GENERATED AN OUTFLOW BOUNDARY THAT WAS NEAR
I-35 AT 7 AM.  THIS BOUNDARY WILL CONTINUE TO DRIFT WEST THIS
MORNING.  A WEAK STATIONARY FRONT NEAR I-40... ALONG WITH THE
OUTFLOW BOUNDARY... WILL BE LOW-LEVEL FOCUSING MECHANISMS FOR STORM
DEVELOPMENT THIS AFTERNOON.  INSTABILITY AND WIND PROFILES WILL
SUPPORT STRONG TO SEVERE STORMS... POSSIBLY EVEN A FEW SUPERCELLS
DURING THE AFTERNOON.  ANOTHER STORM COMPLEX MAY FORM TO THE NORTH
OF OKLAHOMA THIS EVENING AND MOVE SOUTHEAST INTO OKLAHOMA DURING THE
NIGHT.

PROBABILITY TABLE...
VALID THROUGH 700 AM CDT MONDAY AUG 4.
PROBABILITY OF THUNDERSTORMS OCCURRING IN THE
              NWS NORMAN COUNTY WARNING AREA...100 PERCENT.
PROBABILITY OF SEVERE STORMS IF STORMS OCCUR...60 PERCENT.

OTHER HAZARDOUS WEATHER...
ASIDE FROM THE SEVERE WEATHER DANGER...NO OTHER HAZARDOUS WEATHER IS
EXPECTED THROUGH TONIGHT.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY...

THUNDERSTORM OUTLOOK...
THERE WILL BE ANOTHER SLIGHT RISK OF SEVERE STORMS OVER MUCH OF THE
REGION ON MONDAY AND MONDAY NIGHT.  THE CHANCE OF THUNDERSTORMS WILL
COME TO AN END AFTER TUESDAY NIGHT.

OTHER HAZARDOUS WEATHER...
NONE.

THE NEXT SCHEDULED HAZARDOUS WEATHER OUTLOOK WILL BE ISSUED AT NOON
TODAY.

CMS

In the hours before

Local storm report, Aug 3, 4:29 AM CDT, 5 hours 20 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OK
0429 AM CDT SUN AUG 03 2003

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

0418 AM    STROUD                    OK   0.88 IN HAIL
08/03/03   LINCOLN

CMS

Special weather statement, Aug 3, 4:45 AM CDT, 5 hours 4 minutes before

OKZ008-031000-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
445 AM CDT SUN AUG 3 2003

...SIGNIFICANT WEATHER ADVISORY...

THIS SIGNIFICANT WEATHER ADVISORY IS FOR KAY COUNTY.

A STRONG THUNDERSTORM WAS LOCATED 22 MILES NORTH OF BRAMAN AT 445 AM
CDT...AND WAS MOVING SOUTH AT 35 MPH.  THIS STORM... AND OTHERS
DEVELOPING OVER EASTERN KAY COUNTY... MAY BECOME SEVERE BY 5 AM AND
WILL LIKELY AFFECT KAY COUNTY THROUGH 6 AM.

PEOPLE IN KAY COUNTY...INCLUDING THE CITY OF PONCA CITY...SHOULD
MONITOR THE WEATHER SITUATION CLOSELY. LISTEN FOR WARNINGS AND REMAIN
ALERT FOR THREATENING WEATHER CONDITIONS.

CMS

Special weather statement, Aug 3, 5:28 AM CDT, 4 hours 21 minutes before

OKZ008-031045-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
528 AM CDT SUN AUG 3 2003

...SIGNIFICANT WEATHER ADVISORY...

THIS SIGNIFICANT WEATHER ADVISORY IS FOR KAY COUNTY.

A STRONG THUNDERSTORM WAS LOCATED 9 MILES NORTH OF BRAMAN AT 528 AM
CDT...AND WAS MOVING SOUTHEAST AT 20 MPH.  ANOTHER STRONG STORM WAS
OVER NORTHEAST KAY COUNTY... NORTH OF NEWKIRK.  ALTHOUGH THESE
STORMS ARE SHOWING SIGNS OF WEAKENING... THEY MAY RE-INTENSIFY AT
ANY TIME.  HAIL AND HEAVY RAIN WILL BE THE PRIMARY CONCERNS WITH
THESE STORMS.

PEOPLE IN KAY COUNTY SHOULD MONITOR THE WEATHER SITUATION CLOSELY.
LISTEN FOR WARNINGS AND REMAIN ALERT FOR THREATENING WEATHER
CONDITIONS.

CMS

Special weather statement, Aug 3, 7:11 AM CDT, 2 hours 38 minutes before

OKZ043-031230-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
711 AM CDT SUN AUG 3 2003

...SIGNIFICANT WEATHER ADVISORY...

THIS SIGNIFICANT WEATHER ADVISORY IS FOR COAL COUNTY.

A STRONG THUNDERSTORM WAS LOCATED OVER CENTRAHOMA AT 708 AM CDT...
AND WAS MOVING SOUTHEAST AT 20 MPH.

THIS STORM IS LIKELY TO PRODUCE HAIL AROUND HALF AN INCH IN DIAMETER
AND WIND GUSTS AROUND 40 MPH.  IF THE STORM STRENGTHENS... DAMAGING
HAIL WILL BE LIKELY.

PEOPLE IN COAL COUNTY SHOULD MONITOR THE WEATHER SITUATION CLOSELY.
LISTEN FOR WARNINGS AND REMAIN ALERT FOR THREATENING WEATHER
CONDITIONS.

CMS

Local storm report, Aug 3, 8:53 AM CDT, 56 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OK
0853 AM CDT SUN AUG 03 2003

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

0838 AM    5 WSW LAMAR               OK   65 MPH WIND GUST
08/03/03   HUGHES                         EST. BY PUBLIC. 3 INCH
                                          DIA. TREE LIMBS SNAPPED.

0842 AM    3 E HOLDENVILLE           OK   65 MPH WIND GUST
08/03/03   HUGHES                         EST. BY PUBLIC.

0842 AM    HOLDENVILLE               OK   65 MPH WIND GUST
08/03/03   HUGHES                         EST. BY COUNTY SHERIFF
                                          DEPT.

FM

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 3, 4:08 AM CDT	Severe Thunderstorm Warning	OUN	Lincoln	22 min
Aug 3, 7:45 AM CDT	Severe Thunderstorm Warning	OUN	Hughes	30 min
Aug 3, 8:15 AM CDT	Severe Thunderstorm Warning	OUN	Hughes	45 min
Aug 3, 9:02 AM CDT	Severe Thunderstorm Warning	OUN	Atoka, Coal, Hughes	43 min
Aug 3, 9:28 AM CDT	Severe Thunderstorm Warning	OUN	Pontotoc	47 min
Aug 3, 10:16 AM CDT	Severe Thunderstorm Warning	OUN	Bryan, Marshall	59 min
Aug 3, 10:45 AM CDT	Severe Thunderstorm Warning	OUN	Atoka	30 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.