Alert archive / Missouri / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 286, NWS Springfield, MO

August 23, 2002Stone County, Missouri

NWS Springfield, MO issued this severe thunderstorm warning at Aug 23, 2002, 11:51 PM CDT for Stone County, Missouri. It was in force for 54 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 23, 2002, 11:51 PM CDT (04:51 UTC)
Expired: Aug 24, 2002, 12:45 AM CDT
In force: 54 min
Issued by: NWS Springfield, MO
Area: Counties, with a storm outline in the text

County Stone County, MO

The radar

The Springfield radar (KSGF), 38 km from the middle of the area, began a volume at 04:53 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 00:00Z, 4.9 hours before the alert went out and 34 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: 1863 J/kg
Mixed-layer CIN: -60 J/kg
Mixed-layer LCL: 1567 m above ground
0-6 km bulk shear: 32 kt
0-1 km storm-relative helicity: 56 m²/s²
0-3 km storm-relative helicity: 74 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 1.3

Open this sounding in Storm Lab

The text

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

683 
WUUS53 KSGF 240451
SVRSGF
MOC209-240545-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1150 PM CDT FRI AUG 23 2002

THE NATIONAL WEATHER SERVICE IN SPRINGFIELD HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN STONE COUNTY IN SOUTHWEST MISSOURI

* UNTIL 1245 AM CDT

* AT 1148 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 6 MILES
  SOUTHEAST OF CLEVER...OR 11 MILES WEST OF OZARK...AND MOVING SOUTH
  AT 10 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
   GALENA BY 1230 AM CDT.

THE TOWN OF HURLEY IS ALSO IN THE PATH OF THIS STORM.

IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CONTINUOUS CLOUD TO
GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS
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 3698 9335 3699 9351 3677 9353 3676 9336

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 23, 3:10 PM CDT, 8 hours 41 minutes earlier.

Area forecast discussion, Aug 23, 3:10 PM CDT, 8 hours 41 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SPRINGFIELD MO
310 PM CDT FRI AUG 23 2002

MAIN FORECAST CHALLENGE WILL TIMING AND AREAL COVERAGE OF RAIN
CHANCES THROUGH THE UPCOMING WEEKEND.

WIDELY SCATTERED CONVECTION OCCURRING OVER THE MAINLY THE SOUTHERN
PORTION OF THE FORECAST AREA. ONE BAND OF CONVECTION EXITING EASTERN
COUNTIES ASSOCIATED WITH A SMALL CONVECTIVE COMPLEX THAT MOVED
THROUGH THE FORECAST AREA EARLIER TODAY. OTHER ISOLATED TO WIDELY
SCATTERED SHOWERS HAVE FORMED ON THE PERIPHERY OF THE CONVECTIVE
CLOUD SHIELD WHERE CAPES HAVE RISEN TO 3500 J/KG.  WILL LEAVE IN A
SMALL RAIN CHANCE FOR EARLY EVENING OVER MY SOUTHERN COUNTIES.

AVN 00Z AND 12Z RUNS CONSISTENT WITH ETA AND BOTH ARE FAIRLY CLOSE
ON MIDLEVEL PATTERN CHANGE UNFOLDING THIS WEEKEND. HAVE PRIMARILY
LEANED TOWARD THE ETA/MESO ETA FOR THE SHORT TERM BASED ON BETTER
HANDLING OF SFC COLD FRONT NOW OVER NORTHERN MISSOURI. AVN SEEMS TOO
FAST IN PUSHING THE FRONT SOUTHWARD THROUGH THE AREA.

STRONG UPPER JET OVER THE GREAT BASIN INTO THE CENTRAL ROCKIES AT
18Z. THIS IS PROGGED TO NOSE INTO THE CENTRAL HIGH PLAINS LATER
TONIGHT INTO LOW LEVEL THETA-E RIDGE AND AREA OF LOW LEVEL MOISTURE
ADVECTION. COMPLEX OF STORMS SHOULD EVOLVE OVER THE HIGH PLAINS AND
OF KS AND NEB. CORFIDI VECTORS JUST SOUTH OF DUE EAST ACROSS KANSAS
AND STORMS SHOULD CONTINUE TO MOVE AND DEVELOP EASTWARD ALONG THE
85H FRONT AS THE LOW LEVEL JET GRADUALLY VEERS LATE TONIGHT AND
EARLY SATURDAY. SOME STORMS COULD REFIRE SATURDAY AND SATURDAY NIGHT
WITH LOW LEVEL BAROCLINIC ZONE STILL IN PLACE OVER SOUTHWEST MO AND
30H JET NOSING INTO THE REGION. WILL KEEP RAIN CHANCES THROUGH MOST
OF THE WEEKEND WITH BEST CHANCES GENERALLY OVER SOUTHWEST CORNER OF
MISSOURI AND SOUTHEAST KS.

MIDLEVEL CLOSED LOW EVENTUALLY BECOMES ESTABLISHED OVER TN BY
MONDAY. NEW ETA CLOSES THIS SYSTEM OFF SOMEWHAT FARTHER WEST THAN
THE AVN. CANT RULE THE POSSIBILITY OF SHOWERS IN THE UPPER CYCLONIC
FLOW OVER SOUTHEASTERN MO EARLY NEXT WEEK...BUT WILL DRY FORECAST AS
IS FOR NOW. 00Z AVN BRINGS ANOTHER MIDLEVEL SYSTEM INTO THE AREA IN
ACTIVE NW FLOW PATTERN. WHILE SYSTEM LOOKS A BIT STRONG...WILL ADD
RAIN CHANCES FOR THE THU-FRI TIME FRAME. CONFIDENCE IN THIS IS
FAIRLY LOW GIVEN VERY CHANGEABLE MIDLEVEL PATTERN AND WIDE VARIETY
OF MODEL SOLUTIONS.

ISC GRIDS OUT BUT WILL MAKE SOME SMALL CHANGES BEFORE SENDING.

.SGF...
MO...NONE.
KS...NONE.

DSA

In the hours before

Local storm report, Aug 23, 6:39 PM CDT, 5 hours 12 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
639 PM CDT FRI AUG 23 2002

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

0412 PM    5 E ANDERSON              MO   WIND DAMAGE
08/23/02   MCDONALD                       REPORTED BY LAW
                                          ENFORCEMENT OFFICIAL.

Local storm report, Aug 23, 7:22 PM CDT, 4 hours 29 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
722 PM CDT FRI AUG 23 2002

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

1028 AM    SPRINGFIELD               MO   WIND DAMAGE
08/23/02   GREENE                         TREES DOWN BY HIGH
                                          WIND.  TRACTOR TRAILER
                                          BLOWN OFF OF HWY 174.
                                          REPORTED BY PUBLIC.

1031 AM    REPUBLIC                  MO   WIND DAMAGE
08/23/02   GREENE                         TREES DOWN IN TOWN.
                                          REPORTED BY LAW
                                          ENFORCEMENT OFFICIAL.

1050 AM    REPUBLIC                  MO   80 MPH TSTM GUST
08/23/02   GREENE                         NUMEROUS LARGE TREES
                                          DOWN. HOUSE AND
                                          OUTBUILDING DAMAGE.
                                          REPORTED BY STORM
                                          SPOTTER.

0340 PM    NEOSHO                    MO   WIND DAMAGE
08/23/02   NEWTON                         POWER LINES DOWN.
                                          REPORTED BY LAW
                                          ENFORCEMENT OFFICIAL.

0340 PM    NEOSHO                    MO   .75 INCH HAIL
08/23/02   NEWTON

0401 PM    GOODMAN                   MO   1 INCH HAIL
08/23/02   MCDONALD                       REPORTED BY LAW
                                          ENFORCEMENT OFFICIAL.

0409 PM    COLUMBUS                  KS   WIND DAMAGE
08/23/02   CHEROKEE                       TREES AND POWER LINES
                                          DOWN. REPORTED BY LAW
                                          ENFORCEMENT OFFICIAL.

0412 PM    5 E ANDERSON              MO   WIND DAMAGE
08/23/02   MCDONALD                       REPORTED BY LAW
                                          ENFORCEMENT OFFICIAL.

0500 PM    COLUMBUS                  KS   WIND DAMAGE
08/23/02   CHEROKEE                       REPORTED BY EMERGENCY
                                          MANAGEMENT.

0500 PM    COLUMBUS                  KS   WIND DAMAGE
08/23/02   CHEROKEE                       EVENT DURATION 30
                                          MINUTES. REPORTED BY
                                          EMERGENCY MANAGEMENT.

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 23, 10:43 PM CDT	Flash Flood Warning	SGF	Shannon	6 hr
Aug 23, 11:11 PM CDT	Severe Thunderstorm Warning	SGF	Christian	34 min
Aug 24, 12:26 PM CDT	Severe Thunderstorm Warning	SGF	Dade	34 min
Aug 24, 12:39 PM CDT	Severe Thunderstorm Warning	SGF	Greene, Polk	66 min
Aug 24, 1:58 PM CDT	Severe Thunderstorm Warning	SGF	Webster	47 min
Aug 24, 2:14 PM CDT	Severe Thunderstorm Warning	SGF	Wright	46 min
Aug 24, 2:52 PM CDT	Severe Thunderstorm Warning	SGF	Douglas, Howell, Texas	38 min
Aug 24, 3:28 PM CDT	Severe Thunderstorm Warning	SGF	Howell	47 min
Aug 24, 3:52 PM CDT	Severe Thunderstorm Warning	SGF	Oregon	38 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; radar from the NEXRAD Level II archive.