Alert archive / Missouri / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 105, NWS Springfield, MO

April 28, 2003Laclede County, Missouri

NWS Springfield, MO issued this severe thunderstorm warning at Apr 28, 2003, 2:13 PM CDT for Laclede County, Missouri. It was in force for 47 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: Apr 28, 2003, 2:13 PM CDT (19:13 UTC)
Expired: Apr 28, 2003, 3:00 PM CDT
In force: 47 min
Issued by: NWS Springfield, MO
Area: Counties, with a storm outline in the text

County Laclede County, MO

The radar

The Springfield radar (KSGF), 84 km from the middle of the area, began a volume at 19:13 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 12:00Z, 7.2 hours before the alert went out and 134 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: 91 J/kg
Mixed-layer CIN: -341 J/kg
Mixed-layer LCL: 1785 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 208 m²/s²
0-3 km storm-relative helicity: 217 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.

546 
WUUS53 KSGF 281913
SVRSGF
MOC105-282000-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SPRINGFIELD MO
213 PM CDT MON APR 28 2003

THE NATIONAL WEATHER SERVICE IN SPRINGFIELD HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN LACLEDE COUNTY IN MISSOURI

* UNTIL 300 PM CDT

* AT 208 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING HAIL TO THE SIZE OF
  QUARTERS...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS
  LOCATED 8 MILES EAST OF CONWAY...OR 9 MILES SOUTH OF LEBANON...AND
  MOVING EAST AT 35 MPH.

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

THE TOWNS OF MORGAN...TWIN BRIDGES...COMPETITION...FALCON AND
LYNCHBURG ARE 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 OR INSIDE
A VEHICLE 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 3762 9273 3746 9269 3745 9227 3764 9226

$$

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 Apr 28, 11:32 AM CDT, 2 hours 41 minutes earlier.

Area forecast discussion, Apr 28, 11:32 AM CDT, 2 hours 41 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1132 AM CDT MON APR 28 2003

IN THE SHORT TERM...FRONTAL BOUNDARY HAS PUSHED SOUTH INTO THE
SOUTHEAST KANSAS AND CENTRAL MO LATE THIS MORNING. THIS PUSH SOUTH
WAS AIDED BY LAST NIGHTS CONVECTIVE COMPLEX OVER NORTHERN MO.
TEMPERATURES/DEWPOINT SOUTH OF THE FRONT INDICATE THAT WE SHOULD BE
ABLE TO EASILY OVERCOME CAP AT 900 MB THAT WAS PRESENT ON THE SGF
12Z SOUNDING. CUMULUS FIELD ALREADY DEVELOPING AHEAD OF THE BOUNDARY
IN SOUTHEAST KS AND SW MO. PROGGED SOUNDING INDICATE CAPES OF 2500
J/KG OFF THE MESOETA SOUNDING THIS AFTERNOON SEEMS VERY REASONABLE.
WOULD LOOK FOR REDEVELOPMENT ALONG THE BOUNDARY. MAIN THREATS ARE
WIND AND HAIL GIVEN FAIRLY UNIMPRESSIVE WIND PROFILE.

...EXTENDED FORECAST DISCUSSION...

FRONT WILL PUSH THROUGH THE AREA THU AS SHORTWAVE MOVES THROUGH THE
NORTHERN PLAINS. HIGH PRESSURE BUILDS INTO THE AREA FRI AND SAT.
PRESENT FORECAST HAS A GOOD HANDLE ON THIS. ADDED RAIN CHANCES TO
LATE DAY 6 AND DAY 7 (SUNDAY NIGHT AND MONDAY). BOTH THE ECMWF AND
00Z GFS MOVE A STRONG STORM SYSTEM INTO THE PLAINS LATE IN THE
WEEKEND. GFS IS ESPECIALLY IMPRESSIVE WITH THIS SYSTEM BY MONDAY.

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

DSA

Hazardous weather outlook, Apr 28, 1:00 PM CDT, 1 hour 13 minutes before

KSZ073-097-101-MOZ055>058-066>071-077>083-088>098-101>106-291100-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SPRINGFIELD MO
100 PM CDT MON APR 28 2003

THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE MISSOURI OZARKS AND EXTREME
SOUTHEAST KANSAS.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

  WEATHER HAZARDS EXPECTED:

SCATTERED SEVERE THUNDERSTORMS WITH ONE INCH HAIL AND WIND GUSTS
OF 60 MPH.

  AREAS AFFECTED AND TIMING:

THE BEST CHANCE FOR SEVERE WEATHER WILL OCCUR ALONG AND SOUTH OF A
FRONTAL BOUNDARY THAT EXTENDS FROM JUST SOUTH OF CHANUTE KANSAS EAST
TO BOLIVAR AND SALEM. THE SEVERE THREAT TIMING WILL BE FROM 2 TO 10
PM.

  DISCUSSION:

A SLOW MOVING FRONT WILL REMAIN OVER THE AREA THIS AFTERNOON AND
THIS EVENING...EXTENDING FROM SOUTHEAST KANSAS INTO SOUTH CENTRAL
MISSOURI. DAYTIME HEATING AND INCREASED LOW LEVEL MOISTURE SOUTH OF
THE FRONT HAS CAUSED THE ATMOSPHERE TO BECOME INCREASINGLY
UNSTABLE...ESPECIALLY OVER SOUTHEAST KANSAS AND SOUTHERN MISSOURI.
THUNDERSTORMS ARE EXPECTED TO DEVELOP ALONG THE SURFACE BOUNDARY
THIS AFTERNOON AND CONTINUE THIS EVENING. THE MAIN STORM THREAT WILL
BE LARGE HAIL AND DAMAGING WINDS.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY.

STRONG TO SEVERE THUNDERSTORMS MAY BE POSSIBLE AGAIN TUESDAY AS THE
FRONT STARTS TO LIFT BACK TO THE NORTH. A STORM SYSTEM WILL MOVE
THROUGH NORTHEAST THROUGH THE CENTRAL PLAINS WEDNESDAY AND INTO IOWA
ON THURSDAY. THE COLD FRONT ASSOCIATED WITH THIS STORM SYSTEM WILL
BRING THE CHANCE FOR ANOTHER ROUND OF STORMS ON THURSDAY.

ANOTHER STORM SYSTEM WILL BRING ADDTIONAL RAIN AND THUNDERSTORMS
SUNDAY NIGHT AND MONDAY.

.SPOTTER INFORMATION STATEMENT...

EMERGENCY MANAGEMENT PERSONNEL SHOULD CONTINUE TO MONITOR THE
UNFOLDING WEATHER SITUATION THIS AFTERNOON. SPOTTER ACTIVATION MAY
BE REQUIRED THIS AFTERNOON AND THIS EVENING...ESPECIALLY ALONG AND
SOUTH OF THE FRONTAL BOUNDARY.

&&

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

DSA

In the hours before

Local storm report, Apr 28, 8:24 AM CDT, 5 hours 49 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
0824 AM CDT MON APR 28 2003

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

0812 AM    STOVER                    MO   .75 INCH HAIL
04/28/03   MORGAN                         REPORTED BY POST OFFICE
                                          PERSONNEL.

Local storm report, Apr 28, 8:53 AM CDT, 5 hours 20 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
0853 AM CDT MON APR 28 2003

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

0812 AM    STOVER                    MO   .75 INCH HAIL
04/28/03   MORGAN                         REPORTED BY POST OFFICE
                                          PERSONNEL.

0835 AM    FLORENCE                  MO   .88 INCH HAIL
04/28/03   MORGAN                         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
Apr 28, 8:08 AM CDT	Severe Thunderstorm Warning	SGF	Morgan	37 min
Apr 28, 9:54 AM CDT	Severe Thunderstorm Warning	SGF	Miller	21 min
Apr 28, 2:38 PM CDT	Severe Thunderstorm Warning	SGF	Wright	52 min
Apr 28, 2:45 PM CDT	Severe Thunderstorm Warning	SGF	Wright	45 min
Apr 28, 2:47 PM CDT	Severe Thunderstorm Warning	SGF	Texas	58 min
Apr 28, 3:43 PM CDT	Severe Thunderstorm Warning	SGF	Texas	62 min
Apr 28, 4:16 PM CDT	Flash Flood Warning	SGF	Texas	3 hr
Apr 28, 4:28 PM CDT	Severe Thunderstorm Warning	SGF	Wright	62 min
Apr 28, 4:40 PM CDT	Severe Thunderstorm Warning	SGF	Howell	65 min
Apr 28, 4:43 PM CDT	Severe Thunderstorm Warning	SGF	Texas	62 min
Apr 28, 5:14 PM CDT	Severe Thunderstorm Warning	SGF	Shannon	46 min
Apr 28, 5:24 PM CDT	Severe Thunderstorm Warning	SGF	Wright	66 min
Apr 28, 5:32 PM CDT	Severe Thunderstorm Warning	SGF	Oregon	58 min
Apr 28, 5:39 PM CDT	Severe Thunderstorm Warning	SGF	Howell	66 min
Apr 28, 5:43 PM CDT	Severe Thunderstorm Warning	SGF	Texas	62 min
Apr 28, 5:47 PM CDT	Severe Thunderstorm Warning	SGF	Douglas	58 min
Apr 28, 6:36 PM CDT	Severe Thunderstorm Warning	SGF	Douglas, Howell	54 min

Nearby

Severe Thunderstorm Warnings in Missouri, 2003 Every severe thunderstorm warning in 2003

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.