Alert archive / Missouri / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 255, NWS Kansas City, MO

July 21, 1995Buchanan County, Missouri

NWS Kansas City, MO issued this severe thunderstorm warning at Jul 21, 1995, 1:57 PM CDT for Buchanan County, Missouri. It was in force for 48 min.

The area

The counties it named.

The facts

Issued
Jul 21, 1995, 1:57 PM CDT (18:57 UTC)
Expired
Jul 21, 1995, 2:45 PM CDT
In force
48 min
Issued by
NWS Kansas City, MO
Area
Whole counties

County Buchanan County, MO

The radar

The Pleasant Hill radar (KEAX), 105 km from the middle of the area, began a volume at 19:00 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.

The nearest sounding before it

Topeka, KS (KTOP), launched 12:00Z, 7.0 hours before the alert went out and 103 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-pSkew-T log-p diagram, Topeka, KS at 12:00Z on 1995-07-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 626 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Topeka, KS at 12:00Z on 1995-07-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -19 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
626 J/kg
Mixed-layer CIN
-38 J/kg
Mixed-layer LCL
861 m above ground
0-6 km bulk shear
17 kt
0-1 km storm-relative helicity
-19 m²/s²
0-3 km storm-relative helicity
-23 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.

000 
TTAA00 KMCI 211855 RRA
SVRMCI
MOC021-165-211945-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE KANSAS CITY MO
157 PM CDT FRI JUL 21 1995
 
THE NATIONAL WEATHER SERVICE IN KANSAS CITY HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  245 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN NORTHWEST MISSOURI
 
   ...BUCHANAN COUNTY...PLATTE COUNTY
 
AT 155 PM...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM WAS LOCATED
NEAR BEAN LAKE. THIS STORM WAS MOVING TO THE NORTHEAST AT 20 MPH AND
WILL PASS JUST TO THE EAST OF ST JOSEPH.
 
PEOPLE IN FAUCETT ARE IN THE PATH OF THIS STORM AND CAN EXPECT WINDS IN
EXCESS OF 60 MPH AND HAIL UP TO 1 INCH.
 
 
WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE A
STRONG BUILDING.  DO NOT STAND BY WINDOWS.  DON'T USE TELEPHONES
OR ELECTRICAL APPLIANCES UNLESS IN AN EMERGENCY UNTIL THE STORM
HAS PASSED.  MOTORISTS SHOULD NOT DRIVE INTO LOW WATER CROSSINGS.

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 Jul 21, 10:08 AM CDT, 3 hours 49 minutes earlier.

Area forecast discussion, Jul 21, 10:08 AM CDT, 3 hours 49 minutes before
NORTHWEST MISSOURI FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PLEASANT HILL/KANSAS CITY MO
1000 AM CDT FRI JUL 21 1995

ZONAL FLOW PAT WITH WK RIPPLES MOVG THRU WILL MAKE TIMING OF ANY CNVTN
QUITE DFCLT NEXT CPL OF DAYS. MODELS ALSO TYPICALLY CANNOT BE TRUSTED
IN THIS TYPE OF FLOW PAT. LTST WV IMAGERY SHOWS PSBLY TWO VORT LOBES
WTIH LTL EFFECT ON WX...YET. LEAD FEATURE IS DAMPENING OUT ACRS EXTRM
ERN KS WITH ERYR RW- HVG FALLEN APART AN HR AGO. NEXT APRNT VORT LOBE
OVR CNTRL KS ASSOCD WITH WITH DRY WEDGE. WILL HV TO WATCH LATTER FEATURE
WITH ITS DRIER AIR ALOFT MOVG INTO RGN OF HIER LOW LVL MSTR. AT THE SFC
WHAT IS LEFT OF YDAS QSTNRY BNDRY HAS MOVD LTL IN PAST 24 HRS AND IS NR
A TOP-MCI-S OF SPI LN. GOOD CHC BNDRY WILL WASH OUT AS SLY BNDRY LYR
FLOW IS EXPCD TO INCR. FOR NOW WILL HOLD ONTO DRY FCST BUT WILL KEEP A
CLOSE EYE FOR AFTN DVLPMT...JUST CANT TRUST THOSE WK RIPPLES WITH A
DSTBLZG AMS AND ANY SEMBLANCE OF A BNDRY IN THE AREA. TEMP WISE WILL
BUMP MAX TO 90 LCLLY...WAS 88 AT MKC YDA...OTRW REST OF FA LOOKS FINE.

JULY

In the hours before

Special weather statement, Jul 21, 1:00 PM CDT, 57 minutes before
MOZ001>008-011>017-020>025-028>033-037>040-043>046-053-054-067-
KSZ025-057-060-102>105-221200-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE PLEASANT HILL/KANSAS CITY MO
100 PM CDT FRI JUL 21 1995

...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS OVER PORTIONS OF
WESTERN MISSOURI AND EXTREME EASTERN KANSAS THROUGH TONIGHT...

FORECAST...SCATTERED THUNDERSTORMS WILL DEVELOP FROM EAST CENTRAL
KANSAS EASTWARD INTO CENTRAL MISSOURI THIS AFTERNOON. SOME OF THESE
STORMS MAY BRIEFLY REACH SEVERE LEVELS. THE PRIMARY SEVERE THREAT WILL
BE FROM LARGE HAIL AND DAMAGING WINDS. THERE IS A SLIGHT RISK OF SEVERE
THUNDERSTORMS SOUTH OF A MARYVILLE PLATTSBURG TO MACON LINE. LATER
TONIGHT THERE WILL ALSO BE A SLIGHT RISK OF SEVERE THUNDERSTORMS OVER
WESTERN MISSOURI WEST OF A TRENTON TO OSCEOLA LINE. SPOTTER ACTIVATION
MAY BE NEEDED THIS AFTERNOON AND AGAIN AFTER MIDNIGHT.

DISCUSSION...AN OLD COLD FRONT LIES WEST TO EAST FROM NEAR TOPEKA
THROUGH KANSAS CITY AND INTO CENTRAL MISSOURI NEAR COLUMBIA. WARM MOIST
AND UNSTABLE AIR HAS RETURNED TO WESTERN MISSOURI AND EASTERN KANSAS
AND WILL HELP FORM THUNDERSTORMS ALONG THIS BOUNDARY. SOME OF STRONGER
STORMS WILL HAVE THE POTENTIAL TO BRIEFLY BECOME SEVERE AND PRODUCE
LARGE HAIL AND DAMAGING WINDS. OTHERWISE...WEAK DISTURBANCES ALOFT WILL
MOVE ACROSS KANSAS AND MISSOURI OVER THE NEXT TWO DAYS AND WILL
ENCOUNTER A VERY UNSTABLE AIRMASS. SEVERE THUNDERSTORMS MAY ALSO
DEVELOP THIS AFTERNOON OVER WESTERN OR CENTRAL KANSAS. THEY WILL MOVE TO
THE EAST AND COULD REACH WESTERN MISSOURI AFTER MIDNIGHT.

JULY
Special weather statement, Jul 21, 1:09 PM CDT, 48 minutes before
MOZ001>008-011>017-020>025-028>033-037>040-043>046-053-054-067-
KSZ025-057-060-102>105-221200-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE PLEASANT HILL/KANSAS CITY MO
100 PM CDT FRI JUL 21 1995

...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS OVER PORTIONS OF
WESTERN MISSOURI AND EXTREME EASTERN KANSAS THROUGH TONIGHT...

FORECAST...SCATTERED THUNDERSTORMS WILL DEVELOP FROM EAST CENTRAL
KANSAS EASTWARD INTO CENTRAL MISSOURI THIS AFTERNOON. SOME OF THESE
STORMS MAY BRIEFLY REACH SEVERE LEVELS. THE PRIMARY SEVERE THREAT WILL
BE FROM LARGE HAIL AND DAMAGING WINDS. THERE IS A SLIGHT RISK OF SEVERE
THUNDERSTORMS SOUTH OF A MARYVILLE PLATTSBURG TO MACON LINE. LATER
TONIGHT THERE WILL ALSO BE A SLIGHT RISK OF SEVERE THUNDERSTORMS OVER
WESTERN MISSOURI WEST OF A TRENTON TO OSCEOLA LINE. SPOTTER ACTIVATION
MAY BE NEEDED THIS AFTERNOON AND AGAIN AFTER MIDNIGHT.

DISCUSSION...AN OLD COLD FRONT LIES WEST TO EAST FROM NEAR TOPEKA
THROUGH KANSAS CITY AND INTO CENTRAL MISSOURI NEAR COLUMBIA. WARM MOIST
AND UNSTABLE AIR HAS RETURNED TO WESTERN MISSOURI AND EASTERN KANSAS
AND WILL HELP FORM THUNDERSTORMS ALONG THIS BOUNDARY. SOME OF STRONGER
STORMS WILL HAVE THE POTENTIAL TO BRIEFLY BECOME SEVERE AND PRODUCE
LARGE HAIL AND DAMAGING WINDS. OTHERWISE...WEAK DISTURBANCES ALOFT WILL
MOVE ACROSS KANSAS AND MISSOURI OVER THE NEXT TWO DAYS AND WILL
ENCOUNTER A VERY UNSTABLE AIRMASS. SEVERE THUNDERSTORMS MAY ALSO
DEVELOP THIS AFTERNOON OVER WESTERN OR CENTRAL KANSAS. THEY WILL MOVE TO
THE EAST AND COULD REACH WESTERN MISSOURI AFTER MIDNIGHT.

JULY

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 21, 1:57 PM CDTSevere Thunderstorm WarningEAXPlatte45 min
Jul 21, 3:46 PM CDTSevere Thunderstorm WarningEAXLafayette44 min
Jul 21, 4:40 PM CDTSevere Thunderstorm WarningEAXSaline50 min

Nearby

Severe Thunderstorm Warnings in Missouri, 1995Every severe thunderstorm warning in 1995

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.