Alert archive / Missouri / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 77, NWS Kansas City, MO

May 12, 2000Caldwell County, Clinton County, Missouri

NWS Kansas City, MO issued this severe thunderstorm warning at May 12, 2000, 12:39 AM CDT for Caldwell County, Clinton County, Missouri. It was in force for 51 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: May 12, 2000, 12:39 AM CDT (05:39 UTC)
Expired: May 12, 2000, 1:30 AM CDT
In force: 51 min
Issued by: NWS Kansas City, MO
Area: Whole counties

Counties Caldwell County, MO, Clinton County, MO

The radar

The Pleasant Hill radar (KEAX), 91 km from the middle of the area, began a volume at 05:42 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.

What was reported inside it

Time	Report	Where	Remark
May 12, 12:49 AM CDT	Thunderstorm Wind 52 E	Polo, 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.

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 12, 12:00 AM CDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Topeka, KS (KTOP), launched 00:00Z, 5.7 hours before the alert went out and 143 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: 4491 J/kg
Mixed-layer CIN: -13 J/kg
Mixed-layer LCL: 1450 m above ground
0-6 km bulk shear: 47 kt
0-1 km storm-relative helicity: 181 m²/s²
0-3 km storm-relative helicity: 232 m²/s²
Significant tornado parameter: 3.3
Supercell composite: 30.9

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KEAX 120540
SVRMCI
MOC025-049-120630-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
1239 AM CDT FRI MAY 12 2000

THE NATIONAL WEATHER SERVICE IN PLEASANT HILL HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN CALDWELL COUNTY IN NORTH CENTRAL MISSOURI
  CLINTON COUNTY IN NORTHWEST MISSOURI

* UNTIL 130 AM CDT

* AT 1237 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM OVER MIRABILE...OR ABOUT 36 MILES NORTHEAST OF
  KANSAS CITY...MOVING EAST AT 40 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  OVER POLO...5 MILES SOUTH OF KINGSTON AT 1250 AM CDT
  OVER COWGILL AT 100 AM CDT
  OVER BRAYMER AT 110 AM CDT

* OTHER LOCATIONS IN THE WARNING INCLUDE TURNEY...TRIMBLE...
  PLATTSBURG...PERRIN...LATHROP...GRAYSON AND GOWER.

THIS SEVERE THUNDERSTORM WILL LIKELY PRODUCE HAIL UP TO 1 INCH IN
DIAMETER...AND WINDS IN EXCESS OF 70 MPH. FOR YOUR SAFETY...MOVE
INDOORS AND STAY AWAY FROM WINDOWS. REMEMBER...LIGHTNING IS A THREAT
FROM ALL THUNDERSTORMS. HEAVY RAINS CAN CAUSE LOCALIZED FLOODING OF
LOW LYING AREAS.

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 Kansas City, MO wrote its last area forecast discussion before this severe thunderstorm warning went out at May 11, 3:05 PM CDT, 9 hours 34 minutes earlier.

Area forecast discussion, May 11, 3:05 PM CDT, 9 hours 34 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
305 PM CDT THU MAY 11 2000

FCST CHALLENGES CONCERN TEMPS TNGT/SAT AND TSTMS CHCS. 19Z SFC DATA
SHOWS LOW HAS MOVED E INTO W CNTRL IA WITH CDFNT TRAILING SW THRU SE
NEB TO A DVLPG LOW OVR SE CO. IA LOW WILL CONT E AND FIZZLE WITH
CDFNT STALLING IN NW CRNR MO THIS EVE. EXPC CO LOW TO DEEPEN AND
LIFT NE AS UPSTRM SHRTWV MOVS E INTO SW CO BY 12Z FRI. SHRTWV IS
STGR AND SLOER THAN LAST NGTS PROGS. DRY SLOT IN WV IMAGERY BGNG TO
CUT UNDER SHRTWV SUGG DEPEENING PROCESS ABT OVR.

VERY STG SWLY SFC WNDS HV WEAKENED SOME THIS AFTN AS H8 WIND MAX
LIFTED NE. WINDS ARE NOW BLO ADV CRITERIA ALL BUT NERN CNTYS. THIS
WEAKENING TREND IN WINDS EXPCD TO CONT THIS EVE AND SEE NO REASON TO
KEEP WIND ADV GOING. WILL MENTION BREEZY IN ZONES.

IMPRESSIVE CAP AT H7 SHOWED UP IN MRNG RAOBS. THIS SAME AMS EXPCD TO
RMN OVR CWA TNGT. NGM COOLS H7 TEMPS TOO MUCH TNGT WHILE ETA HOLDS
ONTO THIS HOT POCKET. CAP WILL STOP ANY PRE-FNTL CNVTN TNGT DESPITE
VERY UNSTBL AMS. ANY POST FNTL CNVTN WILL LIKELY OCR 50-100 MILES OR
MORE BHND CDFNT DUE TO LIMITED MID LVL COOLG BHND CDFNT TNGT.
OVERALL FAVOR ETA SOLUTION WITH AVN SFC TEMPS BEST FIT. CDFNT EXPCD
TO RCH A STJ-BETHANY LN BY 12Z FRI. THUS WILL DROP POPS TNGT IN WRM
SECTOR AND LV CHC POPS BND CDFNT IN NW MO. WILL GO ABV GUID MIN
TEMPS IN WRM SECTOR.

CDFNT LIKLEY TO EXIT SERN CWA BY ERY AFTN. OWING TO WRMR START THAN
PROGGED FEEL MAX TEMPS IN UPR 80S IN SE LOOKS GD UNTIL FROPA ARND
18Z. WILL KEEP CHC POPS FOR TMRW AS SOME MID LVL COOLG FINALLY
ARRIVES WITH CO SHRTWV AND FEEL PTNL EXISTS FOR SOME POST FNTL
CNVTN. WILL ONLY MENTION MRNG POPS IN THE NW.

MUCH COOLER/DRIER AIR FOLLOWS ON SAT AS LRG SFC HIGH SETTLES INTO
RGN. GUID TEMPS LOOKS RSNBL AND FOLLOWED.

.EAX...

JULY

In the hours before

Local storm report, May 11, 9:14 PM CDT, 3 hours 25 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
914 PM CDT THU MAY 11 2000

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

0905 PM    GOWER                     MO   1.25 INCH HAIL
05/11/00   CLINTON                        REPORTED BY PUBLIC.

Local storm report, May 11, 9:55 PM CDT, 2 hours 44 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
955 PM CDT THU MAY 11 2000

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

0951 PM    2 W SPRINGDALE            KS   1 INCH HAIL
05/11/00   LEAVENWORTH

Local storm report, May 11, 10:00 PM CDT, 2 hours 39 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
1000 PM CDT THU MAY 11 2000

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

0957 PM    2 W TONGANOXIE            KS    MPH TSTM GUST
05/11/00   LEAVENWORTH                    REPORTED BY LAW
                                          ENFORCEMENT OFFICIAL.

Local storm report, May 11, 10:15 PM CDT, 2 hours 24 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
1015 PM CDT THU MAY 11 2000

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

0820 PM    3 S RUSHVILLE             KS   1 INCH HAIL
05/11/00   LEAVENWORTH                    REPORTED BY PUBLIC.

Local storm report, May 11, 10:21 PM CDT, 2 hours 18 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
1021 PM CDT THU MAY 11 2000

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

1020 PM    WOLCOTT                   KS   .88 INCH HAIL
05/11/00   WYANDOTTE                      REPORTED BY EMERGENCY
                                          MANAGEMENT.

Local storm report, May 11, 10:35 PM CDT, 2 hours 4 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
1035 PM CDT THU MAY 11 2000

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

1027 PM    4 W PARKVILLE             MO   .88 INCH HAIL
05/11/00   PLATTE                         REPORTED BY EMERGENCY
                                          MANAGEMENT.

The office that day

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

Issued	Product	Office	Counties	Lasted
May 11, 8:15 PM CDT	Severe Thunderstorm Warning	EAX	Buchanan, Platte	45 min
May 11, 8:56 PM CDT	Severe Thunderstorm Warning	EAX	Buchanan, Clinton, Platte	49 min
May 11, 10:17 PM CDT	Severe Thunderstorm Warning	EAX	Clay, Platte	58 min
May 11, 11:11 PM CDT	Severe Thunderstorm Warning	EAX	Clay, Platte	64 min
May 11, 11:15 PM CDT	Severe Thunderstorm Warning	EAX	Jackson	60 min
May 11, 11:25 PM CDT	Tornado Warning	EAX	Clay	50 min
May 11, 11:31 PM CDT	Tornado Warning	EAX	Jackson	44 min
May 11, 11:48 PM CDT	Tornado Warning	EAX	Lafayette, Ray	42 min
May 12, 12:36 AM CDT	Severe Thunderstorm Warning	EAX	Buchanan, Platte	39 min
May 12, 12:43 AM CDT	Tornado Warning	EAX	Platte	62 min
May 12, 12:43 AM CDT	Tornado Warning	EAX	Buchanan	62 min
May 12, 1:04 AM CDT	Severe Thunderstorm Warning	EAX	Ray	41 min
May 12, 1:45 AM CDT	Severe Thunderstorm Warning	EAX	Andrew, Buchanan	60 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.