Alert archive / Missouri / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 226, NWS Springfield, MO

July 18, 2002McDonald County, Missouri

NWS Springfield, MO issued this severe thunderstorm warning at Jul 18, 2002, 5:08 PM CDT for McDonald County, Missouri. It was in force for 52 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jul 18, 2002, 5:08 PM CDT (22:08 UTC)
Expired: Jul 18, 2002, 6:00 PM CDT
In force: 52 min
Issued by: NWS Springfield, MO
Area: Counties, with a storm outline in the text

County McDonald County, MO

The radar

The Springfield radar (KSGF), 108 km from the middle of the area, began a volume at 22:08 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.

The nearest sounding before it

Springfield, MO (KSGF), launched 12:00Z, 10.1 hours before the alert went out and 57 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: 2076 J/kg
Mixed-layer CIN: -15 J/kg
Mixed-layer LCL: 601 m above ground
0-6 km bulk shear: 22 kt
0-1 km storm-relative helicity: 134 m²/s²
0-3 km storm-relative helicity: 120 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 3.5

Open this sounding in Storm Lab

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 18, 2:25 PM CDT, 2 hours 43 minutes earlier.

Area forecast discussion, Jul 18, 2:25 PM CDT, 2 hours 43 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SPRINGFIELD MO
225 PM CDT THU JUL 18 2002

STRONG TO SEVERE STORMS DEVELOPED OVER THE CWA THIS AFTERNOON...WITH
THE STRONGEST STORMS NOW PUSHING INTO SOUTHEAST ZONES. LATEST LAPS
DATA SHOWS CAPES OF 1500 TO 2800 J/KG AND LIS AROUND -8...WHICH IS
QUITE A BIT MORE UNSTABLE THAT THE PAST FEW DAYS. GOLFBALL HAIL FELL
NEAR HIGHWAY 13 AROUND COLLINS AROUND 130 PM.

LOOKS LIKE SHORTWAVE CURRENTLY COMING AROUND BASE OF UPPER LOW OVER
CENTRAL MO WILL EXIT SOUTH CENTRAL MO AFTER 06Z. SO WILL CONTINUE
WITH MAINLY EVENING STORMS IN WEST AND CENTRAL ZONES...AND CONTINUE
THROUGH THE NIGHT IN THE SOUTHEAST. IF ETA PANS OUT...LOOKS LIKE
SECONDARY WAVE WILL CLIP THE AREA SATURDAY MORNING AS UPPER LOW
FINALLY PUSHES EAST OF THE AREA. SEE NO REASON TO CHANGE GOING
FORECAST WITH POPS THROUGH SATURDAY AFTERNOON...AND DRY FOR THE REST
OF THE WEEKEND.

LATEST EXTENDED MODEL RUNS CONTINUE TO SHOW UPPER RIDGE OVER THE
REGION THROUGH MONDAY...WITH SOME WEAKENING OVER THE CENTRAL U.S. BY
MONDAY NIGHT AND TUESDAY...AND SURFACE BOUNDARY MOVING ACROSS THE
AREA. WILL GO AHEAD AND INCLUDE A CHANCE OF STORMS FOR TUESDAY...AND
LEAVE WEDNESDAY AND THURSDAY DRY FOR NOW...WITH SLIGHTLY COOLER
TEMPS THAN EARLIER IN THE WEEK.

ISC GRIDS HAVE BEEN SENT.

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

TERRY

In the hours before

Local storm report, Jul 18, 1:49 PM CDT, 3 hours 19 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
149 PM CDT THU JUL 18 2002

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

0145 PM    HUMANSVILLE               MO   1 INCH HAIL
07/18/02   POLK                           REPORTED BY LAW
                                          ENFORCEMENT OFFICIAL.

Local storm report, Jul 18, 2:44 PM CDT, 2 hours 24 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
244 PM CDT THU JUL 18 2002

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

0235 PM    3 N FORSYTH               MO   60 MPH TSTM GUST
07/18/02   TANEY                          REPORTED BY STORM
                                          SPOTTER.

Local storm report, Jul 18, 2:48 PM CDT, 2 hours 20 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
248 PM CDT THU JUL 18 2002

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

0245 PM    BUTTERFIELD               MO   .88 INCH HAIL
07/18/02   BARRY                          REPORTED BY LAW
                                          ENFORCEMENT OFFICIAL.

Local storm report, Jul 18, 3:11 PM CDT, 1 hour 57 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
311 PM CDT THU JUL 18 2002

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

0305 PM    FORSYTH                   MO   60 MPH TSTM GUST
07/18/02   TANEY                          LIMBS DOWN. REPORTED BY
                                          PUBLIC.

Local storm report, Jul 18, 4:02 PM CDT, 1 hour 6 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
402 PM CDT THU JUL 18 2002

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

0357 PM    JANE                      MO   1 INCH HAIL
07/18/02   MCDONALD                       REPORTED BY LAW
                                          ENFORCEMENT OFFICIAL.

Local storm report, Jul 18, 4:25 PM CDT, 43 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
425 PM CDT THU JUL 18 2002

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

0415 PM    2 N VICHY                 MO   .75 INCH HAIL
07/18/02   MARIES                         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 18, 10:33 AM CDT	Flash Flood Warning	SGF	Howell	3 hr
Jul 18, 12:00 PM CDT	Severe Thunderstorm Warning	SGF	Dade, Lawrence	60 min
Jul 18, 1:19 PM CDT	Flash Flood Warning	SGF	Howell	4 hr
Jul 18, 1:25 PM CDT	Severe Thunderstorm Warning	SGF	Cedar, Polk, St. Clair	65 min
Jul 18, 1:49 PM CDT	Severe Thunderstorm Warning	SGF	Christian, Douglas	41 min
Jul 18, 1:54 PM CDT	Severe Thunderstorm Warning	SGF	Hickory, Polk	36 min
Jul 18, 2:21 PM CDT	Severe Thunderstorm Warning	SGF	Ozark, Taney	39 min
Jul 18, 2:26 PM CDT	Severe Thunderstorm Warning	SGF	Barry	49 min
Jul 18, 2:59 PM CDT	Severe Thunderstorm Warning	SGF	Ozark, Taney	61 min
Jul 18, 3:31 PM CDT	Severe Thunderstorm Warning	SGF	Camden, Laclede	59 min
Jul 18, 3:56 PM CDT	Severe Thunderstorm Warning	SGF	McDonald	34 min
Jul 18, 4:07 PM CDT	Severe Thunderstorm Warning	SGF	Maries	38 min
Jul 18, 4:40 PM CDT	Flash Flood Warning	SGF	Maries, Phelps	6 hr
Jul 18, 4:46 PM CDT	Flash Flood Warning	SGF	McDonald	6 hr
Jul 18, 6:28 PM CDT	Severe Thunderstorm Warning	SGF	Morgan	47 min
Jul 18, 6:31 PM CDT	Flash Flood Warning	SGF	Morgan	6 hr

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.