Alert archive / Missouri / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 348, NWS Springfield, MO

July 12, 2003Vernon County, Missouri

NWS Springfield, MO issued this severe thunderstorm warning at Jul 12, 2003, 1:14 AM CDT for Vernon County, Missouri. It was in force for 46 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: Jul 12, 2003, 1:14 AM CDT (06:14 UTC)
Expired: Jul 12, 2003, 2:00 AM CDT
In force: 46 min
Issued by: NWS Springfield, MO
Area: Counties, with a storm outline in the text

County Vernon County, MO

The radar

The Pleasant Hill radar (KEAX), 104 km from the middle of the area, began a volume at 06:13 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
Jul 11, 9:40 PM CDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 6.2 hours before the alert went out and 120 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: 1159 J/kg
Mixed-layer CIN: -1 J/kg
Mixed-layer LCL: 1763 m above ground
0-6 km bulk shear: 55 kt
0-1 km storm-relative helicity: 67 m²/s²
0-3 km storm-relative helicity: 309 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 4.0

Open this sounding in Storm Lab

The text

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

005 
WUUS53 KSGF 120614
SVRSGF
MOC217-120700-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SPRINGFIELD MO
114 AM CDT SAT JUL 12 2003

THE NATIONAL WEATHER SERVICE IN SPRINGFIELD HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  VERNON COUNTY IN MISSOURI

* UNTIL 200 AM CDT.

* AT 112 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING HAIL TO THE SIZE OF
  QUARTERS...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS
  LOCATED 6 MILES SOUTH OF NEVADA...AND MOVING SOUTHEAST AT 45 MPH.

* THE SEVERE THUNDERSTORM WILL REMAIN OVER MAINLY RURAL AREAS OF...
  VERNON COUNTY.

THE TOWNS OF MOUNDVILLE AND MILO ARE ALSO IN THE PATH OF THIS STORM.

THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD
TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING AND AWAY FROM WINDOWS.

LAT...LON 3803 9455 3766 9459 3766 9409 3803 9408

$$

IZZI

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 Springfield, MO wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 11, 11:40 PM CDT, 1 hour 34 minutes earlier.

Area forecast discussion, Jul 11, 11:40 PM CDT, 1 hour 34 minutes before

MESOSCALE FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1140 PM CDT FRI JUL 11 2003

.DISCUSSION...
SURFACE OBSERVATIONS/SATELLITE/WIND PROFILERS CONTINUE TO INDICATE
ADDITIONAL THUNDERSTORMS DEVELOPING ALONG AN 85H THETA-E RIDGE AXIS
ACROSS SOUTHERN MISSOURI. WIND PROFILERS OVER NORTHERN OKLAHOMA AND
SOUTHEAST KANSAS ARE ALSO SHOWING AN SIGNIFICANT INCREASE IN THE LOW
LEVEL JET FROM THE SOUTHWEST...WHICH IS IMPENDING UPON SOUTHERN
MISSOURI. 25H JET MAX OF 70K WAS ALSO MOVING INTO THE AREA WHICH IS
LIKELY SUPPORTING ADDITIONAL UPWARD VERTICAL MOTION. TRAINING OF
CELLS IN PHELPS AND DENT COUNTIES HAS ALREADY PROMPTED A FLASH FLOOD
WARNING IN THESE AREAS...AND ADDITIONAL TRAINING OF STORMS WILL
LIKELY AFFECT A PORTION OF SOUTHERN MISSOURI OVERNIGHT.

LATEST RUC/LAPS INFORMATION ALSO SHOW MOISTURE ADVECTION OVER
SOUTHERN MISSOURI THROUGH AT LEAST 12Z...WITH A SLOW PROGRESSION TO
THE SOUTH OVERNIGHT. DEEP MOISTURE WITH PRECIPITABLE WATER VALUES IN
EXCESS OF 1.75 INCHES WILL CONTINUE THE THREAT OF FLOODING
OVERNIGHT...ESPECIALLY IN AREAS THAT RECEIVED HEAVY RAINFALL FRIDAY
EVENING.

&&

.SGF WATCHES/WARNINGS/ADVISORIES...
.MO...NONE.
.KS...NONE.

JLT

Hazardous weather outlook, Jul 11, 10:25 PM CDT, 2 hours 49 minutes before

KSZ073-097-101-MOZ055>058-066>071-077>083-088>098-101>106-121100-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1025 PM CDT FRI JUL 11 2003

THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE MISSOURI OZARKS AND EXTREME
SOUTHEAST KANSAS.

.DAY ONE...OVERNIGHT.

  WEATHER HAZARDS EXPECTED:

  NUMEROUS THUNDERSTORMS TONIGHT...SCATTERED STORMS MAY
  CONTAIN:
    HAIL UP TO THE SIZE OF HALF DOLLARS.
    WIND GUSTS IN EXCESS 60 MPH.

  LOCALLY HEAVY RAINFALL...WITH LOCAL AMOUNTS IN EXCESS OF AN INCH.

  AREAS AFFECTED AND TIMING:

  SCATTERED THUNDERSTORMS WILL CONTINUE TO DEVELOP ALONG A STRONG
  MOISTURE AXIS LINE FROM SOUTHEAST KANSAS...EASTWARD THROUGH
  SOUTHERN MISSOURI DURING THE OVERNIGHT HOURS. THE SEVERE HAIL AND
  HIGH WIND EVENT WILL LIKELY DIMINISH BY 1 AM...HOWEVER...THE
  THREAT OF FLOODING WILL INCREASE OVERNIGHT AS RAINFALL WILL LIKELY
  CONTINUE OVER THE SAME AREAS THAT RECEIVED HEAVY RAINFALL FRIDAY
  EVENING.

  DISCUSSION:

  A STRONG UPPER LEVEL DISTURBANCE WILL MOVE SOUTHWARD THROUGH THE
  MISSISSIPPI VALLEY TONIGHT. AS THE DISTURBANCE APPROACHES THE AREA
  ADDITIONAL THUNDERSTORMS WILL DEVELOP...ESPECIALLY ALONG A DEVELOP
  LOW LEVEL JET AND THETA-E RIDGE AXIS LINE OVER SOUTHERN MISSOURI.

  IN ADDITION TO THE SEVERE THREAT...SOME OF THE THUNDERSTORMS WILL
  CONTAIN HEAVY RAINFALL. AT THIS TIME CONDITIONS DO NOT FAVOR AN
  SIGNIFICANT FLOODING EVENT...BUT ISOLATED FLOODING IS LIKELY AS
  THE DEVELOPMENT OF THE LOW LEVEL JET BECOMES MORE PRONOUNCED
  OVERNIGHT. SOME LOCATIONS COULD SEE RAINFALL AMOUNTS OF 1 TO 2
  INCHES TONIGHT...WITH ISOLATED THREE TO FOUR INCH AMOUNTS.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY.

  THE FRONTAL BOUNDARY IS EXPECTED TO STALL OUT OVER SOUTHERN
  MISSOURI TOMORROW. ADDITIONAL THUNDERSTORM DEVELOPMENT IS EXPECTED
  ALONG THE BOUNDARY DURING THE DAY TOMORROW. IT IS UNCLEAR HOW
  TONIGHTS THUNDERSTORMS WILL AFFECT CLOUD COVER AND SUBSEQUENT
  INSTABILITY...HOWEVER IF THE ATMOSPHERE DOES DESTABILIZE...WIND
  FIELDS WILL REMAIN SUPPORTIVE OF SEVERE THUNDERSTORMS WITH LARGE
  HAIL AND DAMAGING WINDS AGAIN ON SATURDAY.

  THUNDERSTORMS ARE AGAIN POSSIBLE TUESDAY NIGHT AND WEDNESDAY AS
  YET ANOTHER DISTURBANCE MOVES INTO THE REGION.

.SPOTTER INFORMATION STATEMENT...

  SPOTTER ACTIVATION IS LIKELY THROUGH 3 AM OVER MOST OF SOUTHERN
  MISSOURI.

&&

THIS PRODUCT IS NOW AVAILABLE IN GRAPHICAL FORMAT...ALONG WITH OTHER
WEATHER...HYDROLOGICAL AND CLIMATE INFORMATION...AT
HTTP://WWW.CRH.NOAA.GOV/SGF

JLT

In the hours before

Local storm report, Jul 11, 11:32 PM CDT, 1 hour 42 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1132 PM CDT FRI JUL 11 2003

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

1015 PM    GRAVOIS MILLS             MO   1.75 INCH HAIL
07/11/03   MORGAN                         REPORTED BY LAW
                                          ENFORCEMENT OFFICIAL.

Local storm report, Jul 11, 11:36 PM CDT, 1 hour 38 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1136 PM CDT FRI JUL 11 2003

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

1108 PM    BRANSON                   MO   69 MPH TSTM GUST
07/11/03   TANEY                          REPORTED BY PUBLIC.
                                          BRANSON BELL.  SOME
                                          DAMAGE.

1110 PM    HAMMOND                   KS   1 INCH HAIL
07/11/03   BOURBON                        REPORTED BY LAW
                                          ENFORCEMENT OFFICIAL.

1120 PM    FT SCOTT                  KS   .88 INCH HAIL
07/11/03   BOURBON                        REPORTED BY LAW
                                          ENFORCEMENT OFFICIAL.

Local storm report, Jul 11, 11:39 PM CDT, 1 hour 35 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1139 PM CDT FRI JUL 11 2003

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

1038 PM    MARIONVILLE               MO   WIND DAMAGE
07/11/03   LAWRENCE                       REPORTED BY LAW
                                          ENFORCEMENT OFFICIAL.
                                          WIDE SPREAD WIND AND
                                          SOME STRUCTURAL DAMAGE.
                                          NUMEROUS TREES AND
                                          POWER LINES DOWN.

Local storm report, Jul 12, 12:13 AM CDT, 1 hour 1 minute before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1213 AM CDT SAT JUL 12 2003

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

1155 PM    NEVADA                    MO   1 INCH HAIL
07/11/03   VERNON                         REPORTED BY LAW
                                          ENFORCEMENT OFFICIAL.

Local storm report, Jul 12, 12:21 AM CDT, 53 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1221 AM CDT SAT JUL 12 2003

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

1110 PM    FT SCOTT                  KS   .75 INCH HAIL
07/11/03   BOURBON                        REPORTED BY LAW
                                          ENFORCEMENT OFFICIAL.

Local storm report, Jul 12, 1:08 AM CDT, 6 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
108 AM CDT SAT JUL 12 2003

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

1030 PM    BILLINGS                  MO   WIND DAMAGE
07/11/03   CHRISTIAN                      TREE DOWN ACROSS
                                          RAILROAD TRACK.
                                          REPORTED BY LAW
                                          ENFORCEMENT OFFICIAL.

1045 PM    SPOKANE                   MO   WIND DAMAGE
07/11/03   CHRISTIAN                      MOBILE HOME DAMAGED.
                                          REPORTED BY LAW
                                          ENFORCEMENT OFFICIAL.

The office that day

Everything else NWS Springfield, MO issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 11, 7:41 PM CDT	Severe Thunderstorm Warning	SGF	Pulaski	64 min
Jul 11, 7:56 PM CDT	Severe Thunderstorm Warning	SGF	Douglas	49 min
Jul 11, 8:07 PM CDT	Severe Thunderstorm Warning	SGF	Phelps	53 min
Jul 11, 8:39 PM CDT	Severe Thunderstorm Warning	SGF	Texas	66 min
Jul 11, 9:00 PM CDT	Severe Thunderstorm Warning	SGF	Vernon	60 min
Jul 11, 9:06 PM CDT	Severe Thunderstorm Warning	SGF	Maries, Phelps	54 min
Jul 11, 9:08 PM CDT	Severe Thunderstorm Warning	SGF	St. Clair	52 min
Jul 11, 9:12 PM CDT	Severe Thunderstorm Warning	SGF	Barton	63 min
Jul 11, 9:19 PM CDT	Severe Thunderstorm Warning	SGF	Shannon	56 min
Jul 11, 9:33 PM CDT	Severe Thunderstorm Warning	SGF	Hickory	57 min
Jul 11, 9:55 PM CDT	Severe Thunderstorm Warning	SGF	Oregon	65 min
Jul 11, 10:16 PM CDT	Severe Thunderstorm Warning	SGF	Camden, Miller, Morgan	59 min
Jul 11, 10:25 PM CDT	Severe Thunderstorm Warning	SGF	Barry, Christian, Stone	80 min
Jul 11, 10:43 PM CDT	Severe Thunderstorm Warning	SGF	Taney	77 min
Jul 11, 10:44 PM CDT	Severe Thunderstorm Warning	SGF	Dent	61 min
Jul 11, 11:00 PM CDT	Severe Thunderstorm Warning	SGF	Vernon	60 min
Jul 11, 11:12 PM CDT	Severe Thunderstorm Warning	SGF	McDonald	63 min
Jul 11, 11:14 PM CDT	Flash Flood Warning	SGF	Dent	4 hr
Jul 11, 11:27 PM CDT	Flash Flood Warning	SGF	Phelps	4 hr
Jul 11, 11:38 PM CDT	Severe Thunderstorm Warning	SGF	Shannon	52 min
Jul 12, 12:02 AM CDT	Severe Thunderstorm Warning	SGF	Vernon	73 min
Jul 12, 12:40 AM CDT	Severe Thunderstorm Warning	SGF	Greene	65 min
Jul 12, 12:52 AM CDT	Severe Thunderstorm Warning	SGF	Barton, Dade	53 min
Jul 12, 1:23 AM CDT	Flash Flood Warning	SGF	Vernon	3 hr
Jul 12, 1:40 AM CDT	Severe Thunderstorm Warning	SGF	Lawrence	80 min
Jul 12, 1:44 AM CDT	Severe Thunderstorm Warning	SGF	Barton, Dade	76 min
Jul 12, 1:58 AM CDT	Severe Thunderstorm Warning	SGF	Stone	47 min
Jul 12, 1:59 AM CDT	Severe Thunderstorm Warning	SGF	Cedar	61 min
Jul 12, 2:17 AM CDT	Severe Thunderstorm Warning	SGF	Vernon	58 min
Jul 12, 2:20 AM CDT	Flash Flood Warning	SGF	Barton, Dade	3 hr
Jul 12, 2:36 AM CDT	Severe Thunderstorm Warning	SGF	Christian, Greene	69 min
Jul 12, 2:38 AM CDT	Severe Thunderstorm Warning	SGF	Stone	67 min
Jul 12, 2:54 AM CDT	Severe Thunderstorm Warning	SGF	Cedar, Dade, Lawrence	81 min
Jul 12, 3:06 AM CDT	Flash Flood Warning	SGF	Christian, Greene, Lawrence, Stone, Taney	3 hr
Jul 12, 3:11 AM CDT	Severe Thunderstorm Warning	SGF	Polk	79 min
Jul 12, 3:44 AM CDT	Severe Thunderstorm Warning	SGF	Greene	61 min
Jul 12, 3:50 AM CDT	Severe Thunderstorm Warning	SGF	Newton	55 min
Jul 12, 3:56 AM CDT	Severe Thunderstorm Warning	SGF	Jasper	64 min
Jul 12, 4:08 AM CDT	Severe Thunderstorm Warning	SGF	Barry	52 min
Jul 12, 4:30 AM CDT	Severe Thunderstorm Warning	SGF	Dallas, Polk	45 min
Jul 12, 5:28 AM CDT	Severe Thunderstorm Warning	SGF	Barry	47 min
Jul 12, 5:41 AM CDT	Tornado Warning	SGF	Barry	34 min
Jul 12, 6:09 AM CDT	Flash Flood Warning	SGF	Dallas, Greene, Polk, Webster	4 hr

Nearby

Severe Thunderstorm Warnings in Missouri, 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.