Alert archive / Missouri / Severe Thunderstorm Warnings in 1999

Severe Thunderstorm Warning 15, NWS Kansas City, MO

April 5, 1999Adair County, Macon County, Missouri

NWS Kansas City, MO issued this severe thunderstorm warning at Apr 5, 1999, 4:51 PM CDT for Adair County, Macon County, Missouri. It was in force for 39 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
Apr 5, 1999, 4:51 PM CDT (21:51 UTC)
Expired
Apr 5, 1999, 5:30 PM CDT
In force
39 min
Issued by
NWS Kansas City, MO
Area
Whole counties; the outline is the Mesonet’s reconstruction

Counties Adair County, MO, Macon County, MO

The radar

The Pleasant Hill radar (KEAX), 197 km from the middle of the area, began a volume at 21:52 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 watch it was issued in

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

IssuedProductOfficeLasted
Apr 5, 1:45 PM CDTTornado WatchSPC5 hr

The nearest sounding before it

Topeka, KS (KTOP), launched 12:00Z, 9.9 hours before the alert went out and 285 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 1999-04-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCLEL10008507005003002001001 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 1999-04-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 640 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
529 m above ground
0-6 km bulk shear
69 kt
0-1 km storm-relative helicity
640 m²/s²
0-3 km storm-relative helicity
780 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.9

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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 Apr 5, 4:20 PM CDT, 31 minutes earlier.

Area forecast discussion, Apr 5, 4:20 PM CDT, 31 minutes before
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In the hours before

Special weather statement, Apr 5, 12:23 PM CDT, 4 hours 28 minutes before
KSZ025-057-060-103>105-MOZ028>030-037-043-053-051750-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
1223 PM CDT MON APR 5 1999

TORNADO WATCH NUMBER 120 FOR THE KANSAS CITY METROPOLITAN AREA HAS
BEEN CANCELED.

THE SQUALL LINE THAT WAS MOVING TOWARD THE AREA HAS WEAKENED.

REDEVELOPMENT OF THUNDERSTORMS IS EXPECTED LATER TODAY...AND SEVERE
WEATHER IS STILL A POSSIBILITY.
Special weather statement, Apr 5, 12:23 PM CDT, 4 hours 28 minutes before
KSZ025-057-060-103>105-MOZ028>030-037-043-053-051750-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
1223 PM CDT MON APR 5 1999

TORNADO WATCH NUMBER 120 FOR THE KANSAS CITY METROPOLITAN AREA HAS
BEEN CANCELED.

THE SQUALL LINE THAT WAS MOVING TOWARD THE AREA HAS WEAKENED.

REDEVELOPMENT OF THUNDERSTORMS IS EXPECTED LATER TODAY...AND SEVERE
WEATHER IS STILL A POSSIBILITY.
Special weather statement, Apr 5, 1:00 PM CDT, 3 hours 51 minutes before
KSZ025-057-060-102>105-MOZ001>008-011>017-020>025-028>033-037>040-
043>046-053-054-061100-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
100 PM CDT MON APR 5 1999

...A CHANCE OF SEVERE WEATHER THIS AFTERNOON AND EVENING ACROSS
NORTHERN AND CENTRAL MISSOURI...

FORECAST: THUNDERSTORMS WILL CONTINUE DEVELOP ACROSS WESTERN
MISSOURI EARLY THIS AFTERNOON WITH THE ENTIRE AREA SHIFTING TO THE
EAST AS THE AFTERNOON PROGRESSES.  THUNDERSTORMS MAY GROW STRONG
ENOUGH TO PRODUCE SEVERE WEATHER...MAINLY IN AREAS NORTH AND EAST
OF A LINE FROM ST. JOSEPH TO RICHMOND AND CLINTON MISSOURI. THESE
STORMS MAY PRODUCE DAMAGING WINDS...WITH ISOLATED TORNADOES
POSSIBLE. THE THUNDERSTORMS SHOULD BE ENDING IN WESTERN MISSOURI BY
LATE AFTERNOON...AND IN CENTRAL MISSOURI BY THIS EVENING.  SPOTTER
ACTIVATION MAY BE NECESSARY.

HEAVY RAIN WILL ALSO ACCOMPANY THESE THUNDERSTORMS...AND WITH THEIR
NORTH NORTHEAST MOVEMENT...SOME AREAS MAY SEE A TRAINING AFFECT
WHERE SEVERAL STORMS MOVE OVER THE SAME AREA. THIS MAY CAUSE SOME
WATER PROBLEMS.

DISCUSSION: LOW PRESSURE OVER NORTH CENTRAL KANSAS WILL BE LIFTING
NORTHEAST INTO SOUTHEAST NEBRASKA THIS EVENING. A WARM FRONT
LOCATED OVER NORTHERN MISSOURI WILL PROVIDE ONE FOCUS FOR
THUNDERSTORMS THIS AFTERNOON...WHILE STRONG SOUTHERLY WINDS ACROSS
WESTERN AND CENTRAL MISSOURI...TO THE SOUTH OF THE FRONT...WILL ALSO
SUPPORT THUNDERSTORM DEVELOPMENT.  DRIER AIR SHOULD BE PUSHING IN
FROM THE WEST THIS AFTERNOON...WHICH WILL BRING AN END TO THE
THUNDERSTORMS IN EASTERN KANSAS AND EXTREME WESTERN MISSOURI BY
LATE AFTERNOON.

PC
Local storm report, Apr 5, 2:27 PM CDT, 2 hours 24 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
227 PM CDT MON APR 05 1999

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

0209 PM    2 S WINDSOR               MO    WIND DAMAGE
04/05/99   HENRY                           TREES DOWN, GARAGE DOOR
                                           BLOWN OFF AND HOG SHEDS
                                           TIPPED.

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 5, 1:49 PM CDTSevere Thunderstorm WarningEAXJohnson26 min
Apr 5, 2:04 PM CDTSevere Thunderstorm WarningEAXPettis26 min
Apr 5, 2:30 PM CDTSevere Thunderstorm WarningEAXDaviess30 min
Apr 5, 2:58 PM CDTTornado WarningEAXAtchison32 min
Apr 5, 3:56 PM CDTSevere Thunderstorm WarningEAXNodaway34 min

Nearby

Severe Thunderstorm Warnings in Missouri, 1999Every severe thunderstorm warning in 1999

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.