Alert archive / Missouri / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 377, NWS Springfield, MO

July 13, 2003Newton County, Missouri

NWS Springfield, MO issued this severe thunderstorm warning at Jul 13, 2003, 1:28 PM CDT for Newton County, Missouri. It was in force for 77 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 13, 2003, 1:28 PM CDT (18:28 UTC)
Expired: Jul 13, 2003, 2:45 PM CDT
In force: 77 min
Issued by: NWS Springfield, MO
Area: Counties, with a storm outline in the text

County Newton County, MO

The radar

The Springfield radar (KSGF), 94 km from the middle of the area, began a volume at 18:28 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

Springfield, MO (KSGF), launched 12:00Z, 6.5 hours before the alert went out and 53 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: 1689 J/kg
Mixed-layer CIN: -38 J/kg
Mixed-layer LCL: 835 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: 116 m²/s²
0-3 km storm-relative helicity: 181 m²/s²
Significant tornado parameter: 1.1
Supercell composite: 6.4

Open this sounding in Storm Lab

The text

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

611 
WUUS53 KSGF 131828
SVRSGF
MOC145-131945-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SPRINGFIELD MO
127 PM CDT SUN JUL 13 2003

THE NATIONAL WEATHER SERVICE IN SPRINGFIELD HAS ISSUED A

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

* UNTIL 245 PM CDT.

* AT 123 PM 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 NEAR GRANBY...OR 10 MILES EAST OF NEOSHO...AND MOVING EAST
  AT 25 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
   FAIRVIEW BY 135 PM CDT.

THE TOWNS OF NEWTONIA...STARK CITY AND RITCHEY ARE ALSO IN THE PATH
OF THIS STORM.

HAIL UP TO 1 INCH IN DIAMETER HAS BEEN REPORTED IN NEOSHO WITH THIS 
STORM...ALSO NICKEL SIZE HAIL WAS JUST REPORTED IN GRANBY.

IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CONTINUOUS CLOUD TO
GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS OR INSIDE
A VEHICLE IMMEDIATELY LIGHTNING IS ONE OF NATURES NUMBER ONE
KILLERS. REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO
BE STRUCK BY LIGHTNING.

LAT...LON 3705 9461 3677 9459 3675 9408 3705 9409

$$

66

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 13, 12:00 PM CDT, 1 hour 28 minutes earlier.

Area forecast discussion, Jul 13, 12:00 PM CDT, 1 hour 28 minutes before

AREA FORECAST DISCUSSION...UPDATED AVIATION/MORNING OBS.
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1200 PM CDT SUN JUL 13 2003

.DISCUSSION...
LATEST RUC STILL INDICATED THAT THE MAIN LIFT THAT HAD GENERATED THE
STORMS THIS MORNING...WEAKENS BY 19Z...WITH ONLY WEAK BOUNDARIES
LEFT OVER WHICH MAY GENERATE RE-DEVELOPMENT ALONG THE ARKANSAS
BORDER...AND WEST OF CASSVILLE AFTER 22Z. 25H WIND PROFILER AND
UPPER DIVERGENCE ASSOCIATED WITH THE JET MAX...WITH TRANSLATE INTO
NORTHERN OKLAHOMA...WHICH CONTINUES TO LESSEN THE THREAT OF STORMS
BY 19Z.

LONG TERM (TUESDAY THROUGH SATURDAY)...
THE MAJORITY OF THE EXTENDED PERIOD LOOKS DRY AND SEASONABLY
WARM...AS RIDGING AT 500 MB WILL TAKE HOLD OVER THE CENTRAL U.S. BY
MID-WEEK...AND INTO NEXT WEEKEND. BY SATURDAY/SUNDAY NEXT
WEEK...THERE IS SOME INDICATIONS OF A WEAK FRONTAL BOUNDARY NEAR THE
REGION...BUT ITS TOO WEAK AND REGIONAL CONSENSUS SEEMS TO BE WARM
AND DRY THROUGH THE PERIOD. MAY NEED TO WATCH HEAT INDICES AS 100 TO
105 DEGREES ARE LIKELY DURING THE WEEK.

JLT

&&

.AVIATION...
THUNDERSTORMS OVER SOUTHWEST MISSOURI SHOULD BEGIN TO DIMINISH
DURING THE NEXT HOUR OR SO AS THE 80/70H MOISTURE
ADVECTION/CONVERGENCE WEAKENS. MAIN CONCERN THIS AFTERNOON IS
REDEVELOP AFTER 22Z...HOWEVER SHOULD BE CLOSER TO ARKANSAS BORDER
WHERE THE BEST MOISTURE CONVERGENCE WILL REMAIN.

&&

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

JLT

Hazardous weather outlook, Jul 13, 1:00 PM CDT, 28 minutes before

KSZ073-097-101-MOZ055>058-066>071-077>083-088>098-101>106-141100-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SPRINGFIELD MO
100 PM CDT SUN JUL 13 2003

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

DAY ONE...TODAY AND TONIGHT.

  WEATHER HAZARDS EXPECTED:

  ISOLATED TO SCATTERED THUNDERSTORMS CONTAINING:

  HEAVY RAINFALL.
  HAIL TO THE SIZE OF GOLF BALL.
  WIND GUSTS TO 60 MPH.

  AREAS AFFECTED AND TIMING:

  LOCATIONS GENERALLY SOUTH OF A FORT SCOTT KANSAS...TO MOUNT VERNON
  TO BRANSON MISSOURI LINE THIS AFTERNOON.

  DISCUSSION:

  MOISTURE WAS CONVERGING IN THE LOWEST 3000 FEET OVER SOUTHEAST
  KANSAS AND SOUTHWEST MISSOURI THIS MORNING...AND WILL CONTINUE
  OVER THE GENERAL AREA THROUGH THE AFTERNOON. THUNDERSTORMS WILL
  LIKELY FORM OVER THE SAME AREAS THROUGH THE AFTERNOON...BEFORE THE
  MOISTURE LINE MOVES FURTHER SOUTH AND WEST INTO OKLAHOMA AND
  ARKANSAS. MODERATE TO HIGH INSTABILITY AND SUFFICIENT WIND SHEAR
  ALOFT...IS CONDUCIVE FOR HAIL FORMATION DURING THE AFTERNOON. ALSO
  DUE TO THE TRAINING OF THE STORMS...LOCALIZED FLOODING IS
  POSSIBLE...ESPECIALLY IN AREAS THAT RECEIVE HEAVY RAINFALL ON
  FRIDAY NIGHT.

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

  AN UPPER RIDGE WILL BUILD INTO THE REGION THIS WEEK ALLOWING HEAT
  AND HUMIDITY TO INCREASE ACROSS SOUTHEAST KANSAS AND THE MISSOURI
  OZARKS. ON MONDAY...HIGHS ARE EXPECTED TO CLIMB INTO THE MIDDLE
  90S ACROSS SOUTHEAST KANSAS AND FAR WESTERN MISSOURI.  THESE
  TEMPERATURES...COMBINED WITH DEWPOINT VALUES IN THE LOWER
  70S...WILL ALLOW THE HEAT INDEX TO EXCEED 100 DEGREES ACROSS THESE
  LOCATIONS.

  MORE HOT AND HUMID CONDITIONS ARE EXPECTED ON TUESDAY.  IN
  ADDITION...AN APPROACHING FRONTAL BOUNDARY WILL BRING THE CHANCE
  OF SHOWERS AND THUNDERSTORMS TO THE REGION TUESDAY INTO TUESDAY
  NIGHT.  A FEW OF THESE STORMS MAY BE SEVERE WITH LARGE HAIL AND
  DAMAGING WINDS.

.SPOTTER INFORMATION STATEMENT...
  SPOTTER ACTIVATION MAY BE NEEDED THIS AFTERNOON SOUTH OF A FORT
  SCOTT KANSAS...TO MOUNT VERNON...TO BRANSON LINE.

&&

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

JLT/SAW

In the hours before

Local storm report, Jul 13, 12:10 PM CDT, 1 hour 18 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1210 PM CDT SUN JUL 13 2003

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

1205 PM    PURDY                     MO   2.75 INCH HAIL
07/13/03   BARRY                          REPORTED BY PUBLIC.

Local storm report, Jul 13, 12:16 PM CDT, 1 hour 12 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1216 PM CDT SUN JUL 13 2003

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

1130 AM    4 W BRONAUGH              MO   .88 INCH HAIL
07/13/03   VERNON                         REPORTED BY PUBLIC.

Local storm report, Jul 13, 12:46 PM CDT, 42 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1246 PM CDT SUN JUL 13 2003

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

1245 PM    CRESTLINE                 KS   .75 INCH HAIL
07/13/03   CHEROKEE                       REPORTED BY LAW
                                          ENFORCEMENT OFFICIAL.

Local storm report, Jul 13, 1:02 PM CDT, 26 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
102 PM CDT SUN JUL 13 2003

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

0100 PM    NEOSHO                    MO   1 INCH HAIL
07/13/03   NEWTON                         REPORTED BY LAW
                                          ENFORCEMENT OFFICIAL.

Local storm report, Jul 13, 1:23 PM CDT, 5 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
123 PM CDT SUN JUL 13 2003

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

1216 PM    GRANBY                    MO   .75 INCH HAIL
07/13/03   NEWTON                         REPORTED BY LAW
                                          ENFORCEMENT OFFICIAL.

Local storm report, Jul 13, 1:24 PM CDT, 4 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
124 PM CDT SUN JUL 13 2003

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

0123 PM    GRANBY                    MO   .88 INCH HAIL
07/13/03   NEWTON                         REPORTED BY HAM RADIO
                                          OPERATOR.

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 13, 6:50 AM CDT	Severe Thunderstorm Warning	SGF	McDonald	40 min
Jul 13, 7:31 AM CDT	Severe Thunderstorm Warning	SGF	Newton	44 min
Jul 13, 8:00 AM CDT	Severe Thunderstorm Warning	SGF	Jasper	45 min
Jul 13, 8:47 AM CDT	Severe Thunderstorm Warning	SGF	Newton	43 min
Jul 13, 9:28 AM CDT	Severe Thunderstorm Warning	SGF	Newton	32 min
Jul 13, 9:41 AM CDT	Severe Thunderstorm Warning	SGF	Barry, McDonald	64 min
Jul 13, 9:59 AM CDT	Severe Thunderstorm Warning	SGF	Lawrence, Newton	61 min
Jul 13, 10:27 AM CDT	Severe Thunderstorm Warning	SGF	Jasper	48 min
Jul 13, 10:57 AM CDT	Severe Thunderstorm Warning	SGF	Lawrence	63 min
Jul 13, 11:17 AM CDT	Severe Thunderstorm Warning	SGF	Barton, Vernon	73 min
Jul 13, 11:57 AM CDT	Severe Thunderstorm Warning	SGF	Barry	63 min
Jul 13, 12:21 PM CDT	Severe Thunderstorm Warning	SGF	Jasper, Newton	69 min
Jul 13, 1:29 PM CDT	Severe Thunderstorm Warning	SGF	Barry	76 min
Jul 13, 2:15 PM CDT	Flash Flood Warning	SGF	Barry	3 hr
Jul 13, 3:22 PM CDT	Severe Thunderstorm Warning	SGF	Ozark	53 min
Jul 13, 3:50 PM CDT	Severe Thunderstorm Warning	SGF	Christian	55 min
Jul 13, 4:14 PM CDT	Severe Thunderstorm Warning	SGF	Ozark	61 min

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.