Alert archive / Missouri / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 131, NWS St. Louis, MO

May 9, 2000Franklin County, Warren County, Missouri

NWS St. Louis, MO issued this severe thunderstorm warning at May 9, 2000, 1:49 AM CDT for Franklin County, Warren County, Missouri. It was in force for 41 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 9, 2000, 1:49 AM CDT (06:49 UTC)
Expired: May 9, 2000, 2:30 AM CDT
In force: 41 min
Issued by: NWS St. Louis, MO
Area: Whole counties

Counties Franklin County, MO, Warren County, MO

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
May 9, 12:00 AM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 6.8 hours before the alert went out and 278 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: 2720 J/kg
Mixed-layer CIN: -90 J/kg
Mixed-layer LCL: 1120 m above ground
0-6 km bulk shear: 32 kt
0-1 km storm-relative helicity: 17 m²/s²
0-3 km storm-relative helicity: 55 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 1.1

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KLSX 090655 COR
SVRSTL
MOC071-219-090730-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING...CORRECTED TIME 
NATIONAL WEATHER SERVICE ST LOUIS MO
149 AM CDT TUE MAY 9 2000

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHWESTERN FRANKLIN COUNTY IN EAST CENTRAL MISSOURI
  WARREN COUNTY IN EAST CENTRAL MISSOURI

* UNTIL 230 AM CDT

* AT 147 AM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS FROM HERMANN TO OWENSVILLE... MOVING
  EAST NORTHEAST AT 45 MPH.

* LOCATIONS THAT WILL BE AFFECTED...
  WARRENTON
  MARTHASVILLE
  NEW HAVEN
  WASHINGTON



THE PRIMARY SEVERE WEATHER THREAT IS DAMAGING WINDS. MOVE QUICKLY
TO A STURDY BUILDING AND STAY AWAY FROM DOORS AND WINDOWS.



GKS/RP

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 St. Louis, MO wrote its last area forecast discussion before this severe thunderstorm warning went out at May 8, 3:36 PM CDT, 10 hours 13 minutes earlier.

Area forecast discussion, May 8, 3:36 PM CDT, 10 hours 13 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE ST LOUIS MO
335 PM MON MAY 8 2000

WL KP DISC SHORT WITH SVR WX PENDING. MAIN PROBS TO BE ONSET AND
PLACEMENT OF TSRA THIS EVE AND TUE. STG MIDLVL CAP IN PLACE ATTIM
AND QUES IS EXACTLY WHEN IT WILL BREAK. XPCT FIRST CNVCTV DVLPMT IN
NRN ZNS CLOSEST TO FNT AND THEN SPRD S ALG WITH SWD MVMT OF CFNT.
SGT DYNAMICS IN PLACE FOR BOTH SVR ACTVTY OVR NE MO TNGT AND HVY
PCPN EVENT ON TUE. PWS IN EXCESS OF 1.5 IN OVR NRN ZNS FM THIS AFTN
INTO TUE AFTN. FFG PRETTY HI FOR CYS IN NRN ZNS SO WL HOLD OFF ANY
FLASH FLOOD WATCHES BUT NXT SHIFTS WL HAVE TO MONITOR.

MDLS HV CFNT CFNT MOVG INTO CTRL MO BY MDNGT TNGT AND THEN STALLING
AND ADVCTG BACK N ON TUE AS WRM FNT. HVIEST PCPN TO BE TO N OF FNT
WITH STG OVRRNG AND CFNT COMING BACK THRU RGN LT TUE AS SFC LO MVS
NE.

MDL TEMPS SHW COOLER TREND ON TUE FM PREV GUID AND HV ACCEPTED DUE
TO CLDS AND PCPN. WL GO LIKELY IN SERN ZNS ON TUE AND CATEGORICAL IN
WRN AND NRN ZNS VCNTY OF CFNT.

.STL...NONE.

WDB

In the hours before

Local storm report, May 8, 10:52 PM CDT, 2 hours 57 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
1052 PM CDT MON MAY 8 2000

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

0727 PM    HARRISBURG                MO   0.88 INCH HAIL
05/08/00   BOONE                          FROM SHERIFF

0755 PM    BARING                    MO   0.88 INCH HAIL
05/08/00   KNOX                           FROM TRAINED SPOTTER

0757 PM    COLUMBIA                  MO   0.88 INCH HAIL
05/08/00   BOONE                          FROM SHERIFF

0805 PM    10SW MEXICO               MO   0.88 INCH HAIL
05/08/00   AUDRAIN                        FROM TRAINED SPOTTER

0815 PM    2S MEXICO                 MO   1.75 INCH HAIL
05/08/00   AUDRAIN                        GOLFBALL SIZED HAIL
                                          REPORTED BY SHERIFF

0817 PM    5SW CALIFORNIA            MO   0.75 INCH HAIL
05/08/00   MONITEAU                       FROM TRAINED SPOTTER

0840 PM    MCGIRK                    MO   0.75 INCH HAIL
05/08/00   MONITEAU                       FROM SHERIFF

0840 PM    VANDALIA                  MO   DAMAGING WINDS
05/08/00   AUDRAIN                        TREES AND POWER
                                          LINES DOWNED
                                          REPORTED BY LOCAL
                                          POLICE

0916 PM    WELLSVILLE           u     MO   0.88 INCH HAIL
05/08/00   MONTGOMERY                     FROM SHERIFF

1012 PM    ELSBERRY                  MO   0.88 INCH HAIL
05/08/00   LINCOLN                        FROM SHERIFF

MB/RP

Local storm report, May 9, 12:14 AM CDT, 1 hour 35 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
1214 AM CDT TUE MAY 9 2000

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

1045 PM    FORTUNA                   MO   WIND DAMAGE
05/08/00   MONITEAU                       DAMAGE TO A SCHOOL
                                          ROOF. SEVERAL
                                          POWERLINES AND
                                          TREES DOWNED
                                          FROM SHERIFF

MB

The office that day

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

Issued	Product	Office	Counties	Lasted
May 8, 7:08 PM CDT	Severe Thunderstorm Warning	LSX	Boone	52 min
May 8, 7:42 PM CDT	Severe Thunderstorm Warning	LSX	Audrain	48 min
May 8, 7:52 PM CDT	Severe Thunderstorm Warning	LSX	Knox	38 min
May 8, 7:55 PM CDT	Severe Thunderstorm Warning	LSX	Boone	50 min
May 8, 8:08 PM CDT	Severe Thunderstorm Warning	LSX	Audrain, Callaway	52 min
May 8, 8:12 PM CDT	Severe Thunderstorm Warning	LSX	Moniteau	48 min
May 8, 8:22 PM CDT	Severe Thunderstorm Warning	LSX	Lewis	53 min
May 8, 8:36 PM CDT	Severe Thunderstorm Warning	LSX	Cole	39 min
May 8, 8:38 PM CDT	Severe Thunderstorm Warning	LSX	Pike, Ralls	52 min
May 8, 9:10 PM CDT	Severe Thunderstorm Warning	LSX	Montgomery	50 min
May 8, 9:57 PM CDT	Severe Thunderstorm Warning	LSX	Lincoln	48 min
May 8, 10:38 PM CDT	Severe Thunderstorm Warning	LSX	Moniteau	37 min
May 8, 11:31 PM CDT	Severe Thunderstorm Warning	LSX	Callaway	44 min
May 9, 12:04 AM CDT	Severe Thunderstorm Warning	LSX	Boone, Moniteau	46 min
May 9, 1:01 AM CDT	Severe Thunderstorm Warning	LSX	Cole	44 min
May 9, 1:41 AM CDT	Severe Thunderstorm Warning	LSX	Gasconade	34 min
May 9, 1:19 PM CDT	Severe Thunderstorm Warning	LSX	Madison	36 min

Nearby

Severe Thunderstorm Warnings in Missouri, 2000 Every severe thunderstorm warning in 2000

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.