Alert archive / Missouri / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 243, NWS Springfield, MO

August 2, 2002Ozark County, Missouri

NWS Springfield, MO issued this severe thunderstorm warning at Aug 2, 2002, 2:00 PM CDT for Ozark County, Missouri. It was in force for 45 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 2, 2002, 2:00 PM CDT (19:00 UTC)
Expired: Aug 2, 2002, 2:45 PM CDT
In force: 45 min
Issued by: NWS Springfield, MO
Area: Counties, with a storm outline in the text

County Ozark County, MO

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, 7.0 hours before the alert went out and 111 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: 2081 J/kg
Mixed-layer CIN: -53 J/kg
Mixed-layer LCL: 1245 m above ground
0-6 km bulk shear: 15 kt
0-1 km storm-relative helicity: -12 m²/s²
0-3 km storm-relative helicity: -6 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.

162 
WUUS53 KSGF 021900
SVRSGF
MOC153-021945-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SPRINGFIELD MO
158 PM CDT FRI AUG 2 2002

THE NATIONAL WEATHER SERVICE IN SPRINGFIELD HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHWESTERN OZARK COUNTY IN MISSOURI

* UNTIL 245 PM CDT

* AT 155 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING DIME SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED 8 MILES
  WEST OF GAINESVILLE...OR 17 MILES NORTH OF BULL SHOALS...MOVING    
  SOUTHWEST AT 10 MPH.

THE TOWNS OF ISABELLA...SUNDOWN AND THEODOSIA ARE IN THE PATH OF 
THIS STORM.

LAT...LON 3656 9253 3668 9256 3658 9276 3650 9273

CRAMER

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 Aug 2, 2:55 AM CDT, 11 hours 5 minutes earlier.

Area forecast discussion, Aug 2, 2:55 AM CDT, 11 hours 5 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SPRINGFIELD MO
255 AM CDT FRI AUG 2 2002

FORECAST CHALLENGES INCLUDE CHANCE OF THUNDERSTORMS TODAY AND
TEMPERATURES.

SURFACE FRONT STILL PUSHING SOUTH AND EXTENDED FROM QUINCY IL TO
EMPORIA KS AT 07Z.  SUBSTANTIAL DROP IN DEWPOINTS BEHIND THE FRONT
WITH READINGS IN THE LOWER 50S ACROSS NORTHWEST MISSOURI.

THE FRONT WILL SAG INTO SOUTHERN MISSOURI AND BECOME MORE DIFFUSE
TODAY.  MODEST LOW LEVEL CONVERGENCE AND MOISTURE POOLING ALONG THE
WEAKENING FRONT WILL SPARK A FEW AFTERNOON AND EARLY EVENING
THUNDERSTORMS.  APPEARS DEWPOINTS MAY LOWER A BIT ACROSS CENTRAL
MISSOURI THIS AFTERNOON AS LOW LEVEL FLOW TURNS NORTHEAST. THIS
ALONG WITH MORE CLOUD COVER WILL LIKELY KEEP TEMPERATURES IN CHECK.
THEREFORE I WILL CANCEL THE HEAT ADVISORY.

THE UPPER RIDGE WILL ASSERT ITSELF ACROSS THE REGION OVER THE NEXT
SEVERAL DAYS BRINGING A PROLONG PERIOD OF HOT AND HUMID WEATHER WITH
LITTLE CHANCE OF RAIN.  I WILL NOT ISSUE HEAT RELATED PRODUCTS AT
THIS TIME. IT APPEARS DEWPOINTS MAY LOWER A BIT ON SATURDAY AS
SURFACE WINDS MAINTAIN AN EASTERLY COMPONENT.  HIGHS IN THE MIDDLE
TO UPPER 90S LOOK TO BE COMMON OVER THE WEEKEND INTO NEXT WEEK.

.SGF...NONE.

FOSTER

In the hours before

Special weather statement, Aug 2, 1:00 PM CDT, 1 hour before

KSZ073-097-101-MOZ055>058-066>071-077>083-088>098-101>106-030000-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SPRINGFIELD MO
100 PM CDT FRI AUG 2 2002

* HAZARDOUS WEATHER OUTLOOK THROUGH TONIGHT...

  ISOLATED SEVERE THUNDERSTORMS WITH UP TO 1 INCH HAIL
  AND WIND GUSTS TO 60 MPH.

  HEAT INDEX 100 TO 105.

* AREAS AFFECTED AND TIMING...

  ISOLATED STORMS COULD DEVELOP ANYWHERE ACROSS SOUTHEAST KANSAS AND
  THE MISSOURI OZARKS BETWEEN 2 PM AND 7 PM.

* SPOTTER ACTIVATION OUTLOOK...

  ACTIVATION IS NOT EXPECTED...DUE TO THE ISOLATED NATURE OF THE
  STORMS.

* DISCUSSION...

  A WEAK FRONT WILL PUSH INTO SOUTHERN MISSOURI. SUFFICIENT MOISTURE
  AND INSTABILITY WILL BE IN PLACE TO SUPPORT ISOLATED
  THUNDERSTORMS.  WEAK WINDS ALOFT AND THE LACK OF UPPER LEVEL
  DYNAMICS WILL LIMIT THE POTENTIAL FOR SEVERE THUNDERSTORM
  DEVELOPMENT.

* EXTENDED OUTLOOK THROUGH FRIDAY...

  AN EXTENDED PERIOD OF HOT AND HUMID WEATHER CAN BE EXPECTED OVER
  THE WEEKEND INTO NEXT WEEK.  HIGH TEMPERATURES WILL BE IN THE MID
  TO UPPER 90S WITH HEAT INDEX VALUES BETWEEN 100 TO 105 DEGREES.

TERRY

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

Local storm report, Aug 2, 1:14 PM CDT, 46 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
114 PM CDT FRI AUG 02 2002

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

0111 PM    HOUSTON                   MO   .75 INCH HAIL
08/02/02   TEXAS                          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
Aug 2, 12:59 PM CDT	Severe Thunderstorm Warning	SGF	Texas	46 min
Aug 2, 2:04 PM CDT	Severe Thunderstorm Warning	SGF	Ozark	41 min
Aug 2, 4:07 PM CDT	Severe Thunderstorm Warning	SGF	Newton	38 min
Aug 2, 4:34 PM CDT	Severe Thunderstorm Warning	SGF	Taney	41 min
Aug 2, 4:51 PM CDT	Severe Thunderstorm Warning	SGF	Oregon	39 min
Aug 2, 4:57 PM CDT	Severe Thunderstorm Warning	SGF	Barry	48 min
Aug 2, 5:21 PM CDT	Severe Thunderstorm Warning	SGF	Newton	39 min
Aug 2, 5:31 PM CDT	Severe Thunderstorm Warning	SGF	Dent	44 min
Aug 2, 5:42 PM CDT	Severe Thunderstorm Warning	SGF	Phelps, Pulaski	33 min
Aug 2, 5:50 PM CDT	Flash Flood Warning	SGF	Barry	3 hr
Aug 2, 5:51 PM CDT	Severe Thunderstorm Warning	SGF	Lawrence	39 min
Aug 2, 6:34 PM CDT	Severe Thunderstorm Warning	SGF	Barton	41 min

Nearby

Severe Thunderstorm Warnings in Missouri, 2002 Every severe thunderstorm warning in 2002

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.