Alert archive / Missouri / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 108, NWS Springfield, MO

May 2, 2002Shannon County, Missouri

NWS Springfield, MO issued this severe thunderstorm warning at May 2, 2002, 6:25 AM CDT for Shannon County, Missouri. It was in force for 20 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: May 2, 2002, 6:25 AM CDT (11:25 UTC)
Expired: May 2, 2002, 6:45 AM CDT
In force: 20 min
Issued by: NWS Springfield, MO
Area: Counties, with a storm outline in the text

County Shannon County, MO

What was reported inside it

Time	Report	Where	Remark
May 2, 6:34 AM CDT	Hail 0.88	Winona, MO

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

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, 11.4 hours before the alert went out and 227 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: 1175 J/kg
Mixed-layer CIN: -29 J/kg
Mixed-layer LCL: 1882 m above ground
0-6 km bulk shear: 50 kt
0-1 km storm-relative helicity: 62 m²/s²
0-3 km storm-relative helicity: 199 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 4.1

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KSGF 021125
SVRSGF
MOC203-021145-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SPRINGFIELD MO
625 AM CDT THU MAY 2 2002

THE NATIONAL WEATHER SERVICE IN SPRINGFIELD HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CENTRAL SHANNON COUNTY IN SOUTH CENTRAL MISSOURI

* UNTIL 645 AM CDT

* AT 622 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING HAIL TO THE SIZE OF
  NICKELS...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS
  LOCATED NEAR WINONA...OR 36 MILES NORTHEAST OF WEST PLAINS...AND
  MOVING EAST AT 60 MPH.

* THE SEVERE THUNDERSTORM WILL REMAIN OVER MAINLY RURAL AREAS OF...
  SHANNON COUNTY.

THE TOWN OF WEST EMINENCE IS ALSO IN THE PATH OF THIS STORM.

THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD
TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.

LAT...LON 3714 9147 3696 9150 3695 9123 3708 9122
          3708 9104 3714 9099 3726 9116

LINDENBERG

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 2, 2:54 AM CDT, 3 hours 31 minutes earlier.

Area forecast discussion, May 2, 2:54 AM CDT, 3 hours 31 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SPRINGFIELD MO
254 AM CDT THU MAY 2 2002

LATEST SURFACE ANALYSIS INDICATES THAT SURFACE COLD FRONT HAS
CLEARED THE AREA WITH MUCH COOLER AIR MOVING IN ON BRISK NORTHERLY
WINDS.  HOWEVER...LATEST 88D VAD WIND PROFILE INDICATES THAT THE
FRONTAL SLOPE IS VERY SHALLOW...EXTENDING TO ABOUT 3000 FT
AGL...WITH MOIST UNSTABLE HIGHLY SHEARED ENVIRONMENT ABOVE THAT.
CONTINUED INFLUX OF MOISTURE ALONG SUBTROPICAL JET PLUME...AND
STRENGTHENING LOW LEVEL JET INDICATED BY 50 KNOT WIND AT 850MB ON
HASKELL OK PROFILER...SUGGEST THAT CONVECTIVE REDEVELOPMENT IS
LIKELY ACROSS THE SOUTHERN HALF OF THE CWA THIS MORNING. WITH
ACTIVITY ROOTED WELL ABOVE THE BOUNDARY LAYER...MARGINALLY SEVERE
HAIL WOULD BE THE MAIN CONCERN WITH ANY ORGANIZED CELLS.

OTHERWISE...LOW STRATUS AND DRIZZLE WILL HOLD STRONG UNDERNEATH THE
CONVECTION AS COLD AIR ADVECTION IS WINNING OUT OVER DRY AIR
ADVECTION. 925MB PROGS KEEP US PRETTY WELL SOCKED IN THROUGH EARLY
AFTERNOON BEFORE CLEARING COMMENCES FROM THE NORTHWEST. HOWEVER...
SOUTHWEST FLOW ALOFT WILL KEEP MID-HIGH CLOUDS POURING IN THROUGH
MUCH OF THE DAY...SO WILL SEE A TRANSITION IN CEILING HEIGHT RATHER
THAN CLEARING. STRONG COLD ADVECTION WILL KEEP TEMPERATURES WELL
BELOW NORMAL TODAY...WITH AREAS SE OF SGF EXPERIENCING THEIR HIGH
TEMPERATURES AS WE SPEAK.

SURFACE RIDGE WILL BUILD INTO THE AREA TONIGHT...WITH A BRIEF
RESPITE FROM THE CLOUD COVER AS 500MB MOIST AXIS TEMPORARILY SHIFTS
SOUTH. THIS WILL ALLOW TEMPERATURES TO DROP OFF POSSIBLY INTO THE
UPPER 30S...ALTHOUGH THINK FROST CONCERNS HAVE ABATED.

500MB TROF AXIS THAT HAS BEEN PARKED ALONG THE WESTERN US FOR NEARLY
A WEEK WILL FINALLY BE KICKED OUT ON FRIDAY ACCOMPANIED BY A RATHER
POTENT VORT MAX. APPEARS THAT MID LEVEL MOISTURE AND UVVS WILL BE
SUFFICIENT TO SQUEAK OUT SOME LIGHT RAIN...WILL BEST CHANCES FURTHER
SOUTH. HAVE ADDED CHANCE POPS COVERING WESTERN AREAS LATE FRIDAY
AFTERNOON...AND THE ENTIRE CWA FRIDAY NIGHT.

LACK OF AN OVERALL PATTERN CHANGE SUGGESTS AN OVERALL UNSETTLED
REMAINDER OF THE FORECAST PERIOD AS LONG WAVE TROUGH RELOADS OUT
WEST. BROAD LEE TROUGH SETS UP ACROSS THE PLAINS WHILE AN UPPER
LEVEL RIDGE TO OUR SOUTHEAST SUGGESTS THAT WE ARE RIPE FOR A DAILY
BARRAGE OF MCSS SOMEWHERE ACROSS THE REGION. WILL NOT MAKE ANY
CHANGES TO THE EXTENDED AT THIS TIME WHICH BASICALLY INCLUDES WARM
TEMPERATURES (MAXES UPPER 70S TO LOWER 80S) WITH OCCASIONAL CHANCES
FOR SHOWERS/STORMS THAT WOULD BE IMPOSSIBLE TO NAIL DOWN AT THIS
TIME.

ISC GRIDS 10-4. THANKS EAX/TUL FOR FORECAST COORD.

.SGF...NONE.

BOOKBINDER

In the hours before

Local storm report, May 2, 4:04 AM CDT, 2 hours 21 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
404 AM CDT THU MAY 02 2002

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

0335 AM    WILLARD                   MO   .75 INCH HAIL
05/02/02   GREENE                         REPORTED BY PUBLIC.

0347 AM    5 NE SPRINGFIELD          MO   .88 INCH HAIL
05/02/02   GREENE                         REPORTED BY PUBLIC AT
                                          INTERSECTION OF US65
                                          AND I44.

Local storm report, May 2, 5:31 AM CDT, 54 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
531 AM CDT THU MAY 02 2002

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

0444 AM    LICKING                   MO   .75 INCH HAIL
05/02/02   TEXAS                          REPORTED BY LAW
                                          ENFORCEMENT OFFICIAL.

0450 AM    LICKING                   MO   .75 INCH HAIL
05/02/02   TEXAS                          REPORTED BY LAW
                                          ENFORCEMENT OFFICIAL.

Special weather statement, May 2, 6:00 AM CDT, 25 minutes before

KSZ073-097-101-MOZ055>058-066>071-077>083-088>098-101>106-021800-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SPRINGFIELD MO
600 AM CDT THU MAY 2 2002

* HAZARDOUS WEATHER THREATS...

NONE EXPECTED. A FEW ISOLATED THUNDERSTORMS WILL MOVE ACROSS SOUTH
CENTRAL MISSOURI THROUGH 7 AM. THESE STORMS ARE NOT EXPECTED TO
BECOME SEVERE.

* EXTENDED OUTLOOK...

NO HAZARDOUS WEATHER IS EXPECTED.

BOOKBINDER

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

The office that day

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

Issued	Product	Office	Counties	Lasted
May 1, 7:12 PM CDT	Severe Thunderstorm Warning	SGF	Barry, Stone	48 min
May 1, 7:26 PM CDT	Severe Thunderstorm Warning	SGF	Christian, Taney	64 min
May 1, 7:29 PM CDT	Severe Thunderstorm Warning	SGF	Texas, Wright	46 min
May 1, 7:56 PM CDT	Severe Thunderstorm Warning	SGF	Douglas, Ozark	49 min
May 1, 8:19 PM CDT	Tornado Warning	SGF	Taney	26 min
May 1, 8:45 PM CDT	Severe Thunderstorm Warning	SGF	Ozark	45 min
May 1, 9:20 PM CDT	Severe Thunderstorm Warning	SGF	Taney	40 min
May 1, 10:05 PM CDT	Severe Thunderstorm Warning	SGF	Howell	25 min
May 1, 10:25 PM CDT	Severe Thunderstorm Warning	SGF	Oregon	65 min
May 2, 4:00 AM CDT	Severe Thunderstorm Warning	SGF	Greene	45 min
May 2, 4:19 AM CDT	Severe Thunderstorm Warning	SGF	Wright	26 min
May 2, 4:31 AM CDT	Severe Thunderstorm Warning	SGF	Texas	14 min
May 2, 4:45 AM CDT	Severe Thunderstorm Warning	SGF	Dent, Texas	30 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.