Alert archive / Missouri / Severe Thunderstorm Warnings in 1999

Severe Thunderstorm Warning 97, NWS Springfield, MO

May 15, 1999Christian County, Taney County, Missouri

NWS Springfield, MO issued this severe thunderstorm warning at May 15, 1999, 7:40 AM CDT for Christian County, Taney County, Missouri. It was in force for 65 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: May 15, 1999, 7:40 AM CDT (12:40 UTC)
Expired: May 15, 1999, 8:45 AM CDT
In force: 65 min
Issued by: NWS Springfield, MO
Area: Whole counties

Counties Christian County, MO, Taney County, MO

The nearest sounding before it

Springfield, MO (KSGF), launched 12:00Z, 0.7 hours before the alert went out and 62 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1203 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 287 m²/s²
0-3 km storm-relative helicity: 348 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.9

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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 May 15, 2:35 AM CDT, 5 hours 5 minutes earlier.

Area forecast discussion, May 15, 2:35 AM CDT, 5 hours 5 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SPRINGFIELD MO
235 AM CDT SAT MAY 15 1999

PRIMARY FOCUS WILL BE WITH TEMPS DURING THE PD WITH A SECONDARY ON
POPS.

07Z SFC ANALYSIS SHOWS OUTFLOW BNDRY FROM KS/NEB MCS INTO N CNTRL KS.
CONVECTION STILL GOING STRONG WITH N END PUSHING INTO NW MO.  WARM
FRONT ACROSS SE KS/E OK...HELPING TO PRODUCE A FEW SHRA/TSRA ACROSS
NE OK/SW MO/SE KS ATTM.  CLOUD COVER FROM NEB/KS MCS SHOULD AFFECT
THE CWA TDA...MAINLY DURING THE MORNING HOURS INTO THE EARLY
AFTERNOON.  STILL WITH GOOD WAA AND WITH VERY WARM MID LEVEL TEMPS
SHOULD REACH UPPER 70S TO MID 80S ACROSS THE CWA...IN OTHER WORDS THE
FAN NUMBERS LOOK WAY TOO LOW TDA.  WILL WORD ZONES WITH PARTLY SUNNY
TODAY.  WARM FRONT ACROSS THE SW PTN OF CWA SHOULD SWING TO THE N
TDA...AND DESPITE A WARM CAPPING LAYER IN THE MID LEVELS DONT WANT TO
TOTALLY ELIMINATE POPS FROM ZONES TDA.

A SIMILAR SCENARIO SHOULD TAKE PLACE THIS AFTERNOON/EVE ACROSS THE N
PLAINS WITH CONVECTION FIRING ACROSS W/CNTRL NEBRASKA AND DEVELOP
INTO ANOTHER NIGHTTIME MCS...PUSHING INTO NE KS/NW MO/S IA AGAIN.
WILL KEEP 30 POPS ACROSS MY N CWA FOR TONIGHT BUT WILL LEAVE OUT
ELSEWHERE.  WILL PUT 30 POPS IN ACROSS THE CWA AGAIN ON
SUNDAY...MAINLY FOR INSTABILITY...ALTHOUGH CAP LOOKS TO REMAIN FAIRLY
STRONG.  NGM 42 HR PRECIP LOOKS WAY OVERDONE THOUGH.  HAVE GENERALLY
FOLLOWED THE AVN/ETA FOR GUIDANCE THROUGH THE PD.

CAP WILL LIKELY BEGIN TO WEAKEN INTO THE EARLY EXTENDED PD AS MID LVL
SHRTWV BEGINS TO LIFT NE.  SFC FRONT SHOULD ALSO MAKE AN EASTWARD
PUSH AND SHOULD SEE HIGHER POPS FOR MON/MON NIGHT.

CCF
SGF EB 080/062 082/064 078 05313
JLN EB 085/066 085/067 078 05313
UNO EB 080/064 083/065 082 05313
VIH EB 077/061 082/062 079 05333

LINDENBERG

In the hours before

Local storm report, May 15, 6:55 AM CDT, 45 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
655 AM CDT SAT MAY 15 1999

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

0650 AM    BRANSON WEST               MO    .75 INCH HAIL
05/15/99   STONE

The office that day

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

Issued	Product	Office	Counties	Lasted
May 15, 5:19 AM CDT	Severe Thunderstorm Warning	SGF	McDonald, Newton	51 min
May 15, 6:30 AM CDT	Severe Thunderstorm Warning	SGF	Barry	50 min
May 15, 6:40 AM CDT	Severe Thunderstorm Warning	SGF	Stone	50 min
May 15, 8:56 AM CDT	Severe Thunderstorm Warning	SGF	Christian, Greene	49 min
May 15, 10:02 AM CDT	Severe Thunderstorm Warning	SGF	Vernon	48 min
May 15, 10:33 AM CDT	Severe Thunderstorm Warning	SGF	Camden	52 min
May 15, 10:53 AM CDT	Severe Thunderstorm Warning	SGF	Barton, Cedar, Dade	67 min
May 15, 11:23 AM CDT	Severe Thunderstorm Warning	SGF	Polk	47 min
May 15, 11:31 AM CDT	Flash Flood Warning	SGF	Cedar	4 hr
May 15, 9:34 AM CDT	Severe Thunderstorm Warning	SGF	Bourbon	66 min

Nearby

Severe Thunderstorm Warnings in Missouri, 1999 Every severe thunderstorm warning in 1999

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.