Alert archive / Kansas / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 321, NWS Kansas City, MO

October 4, 2000Linn County, Kansas; Bates County, Missouri

NWS Kansas City, MO issued this severe thunderstorm warning at Oct 4, 2000, 11:49 PM CDT for Linn County, Kansas; Bates County, Missouri. It was in force for 56 min. 1 report came from inside the area while it was in force.

The area

The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties, with what was reported inside it.

The facts

Issued: Oct 4, 2000, 11:49 PM CDT (04:49 UTC)
Expired: Oct 5, 2000, 12:45 AM CDT
In force: 56 min
Issued by: NWS Kansas City, MO
Area: Whole counties; the outline is the Mesonet’s reconstruction

Counties Linn County, KS, Bates County, MO

The radar

The Pleasant Hill radar (KEAX), 65 km from the middle of the area, began a volume at 04:52 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.

What was reported inside it

Time	Report	Where	Remark
Oct 5, 12:00 AM CDT	Hail 1	Foster, 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 nearest sounding before it

Topeka, KS (KTOP), launched 00:00Z, 4.8 hours before the alert went out and 141 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 583 m above ground
0-6 km bulk shear: 74 kt
0-1 km storm-relative helicity: -9 m²/s²
0-3 km storm-relative helicity: 393 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.7

Open this sounding in Storm Lab

The text

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

989 
WUUS53 KEAX 050449
SVRMCI
KSC107-MOC013-050545-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
1149 PM CDT WED OCT 4 2000

THE NATIONAL WEATHER SERVICE IN PLEASANT HILL HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EASTERN LINN COUNTY IN EAST CENTRAL KANSAS
  BATES COUNTY IN WEST CENTRAL MISSOURI
  THIS INCLUDES THE CITY OF BUTLER

* UNTIL 1245 AM CDT

* AT 1147 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM OVER AMORET...OR ABOUT 11 MILES WEST OF
  BUTLER...MOVING EAST AT 35 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  BUTLER AT 1205 AM CDT
  BALLARD AT 1220 AM CDT

THIS SEVERE THUNDERSTORM WILL LIKELY PRODUCE HAIL UP TO 1 INCH IN
DIAMETER...AND WINDS IN EXCESS OF 60 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.

LAT...LON 3807 9408 3837 9408 3835 9427 3835 9443
          3832 9476 3805 9479

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 Oct 4, 2:00 PM CDT, 9 hours 49 minutes earlier.

Area forecast discussion, Oct 4, 2:00 PM CDT, 9 hours 49 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
200 PM CDT WED OCT 4 2000

A LARGE SCALE SHIFT IN THE WEATHER PATTERN FROM SPLIT FLOW TO A MORE
UNIFIED POLAR JET MAKES FOR A TRICKY FORECAST. MAIN CONCERNS WILL BE
THE COVERAGE OF PRECIPITATION TONIGHT AND TOMORROW...AS WELL AS
TEMPERATURES IN THE SHORT TERM THROUGH THE EXTENDED.

SEVERAL FACTORS POINT TO WIDESPREAD STRATIFORM RAIN TONIGHT. WATER
VAPOR IMAGERY INDICATES AN ACTIVE SOUTHERN BRANCH EJECTING NUMEROUS
SHORTWAVE TROUGHS OUT OF THE DESERT SOUTHWEST. THESE DISTURBANCES
WILL ACT TO ENHANCE THE LOW LEVEL JET TONIGHT. 305K ISENTROPIC
SURFACE INDICATES GOOD UPGLIDE FOR MOST OF THE NIGHT TONIGHT. THIS
COMBINED WITH MARGINALLY UNSTABLE LAPSE RATES AND 850 DEWPOINTS FROM
MORNING ANALYSIS OF 13-15C COULD PRODUCE A BIT OF THUNDER AS WELL.
WILL GO CATEGORICAL FOR ENTIRE AREA TONIGHT.

PRECIPITATION CHANCES FOR TOMORROW A BIT TRICKIER. ISENTROPIC LIFT
APPEARS TO BE NEUTRAL FOR MUCH OF THE DAY. ETA AND AVN INDICATE A
DECENT AMOUNT OF FRONTOGENTIC FORCING TOMORROW AND WILL HANG MY HAT
ON THAT. BEST LOW LEVEL CONVERGENCE AND MOISTURE WILL BE OVER THE
SOUTHERN CWA SO WILL GO CATEGORICAL THERE WITH HIGH CHANCE TO LIKELY
IN THE NORTH.

TEMPERATURES...LOWS TONIGHT WILL NOT DROP MUCH FROM CURRENT READINGS
SO WILL FORECAST NEAR CURRENT WET BULB TEMPS. LOW CLOUDS AND PRECIP
TOMORROW SHOULD KEEP HIGHS FROM RISING MUCH MORE THAN A FEW
DEGREES...SO AM LEANING MORE TOWARD AVN GUIDANCE. WINDS SHOULD KEEP
BOUNDARY LAYER WELL MIXED THURSDAY NIGHT SO WILL LEAN TOWARDS WARMER
NGM GUIDANCE.

EXTENDED...COLDEST NIGHT WILL LIKELY BE SATURDAY NIGHT AS SURFACE
HIGH PRESSURE BUILDS IN. FEEL THAT MRF IS STILL TOO COLD AND NEW AVN
RUN BACKS THIS UP. USED EUROPEAN 850 TEMPS TO BASE WEEKEND HIGHS AND
BROUGHT MRF MOS LOWS UP A CAT OR TWO. MONDAY AND TUESDAY WILL BEGIN
THE MODIFYING TREND WITH TEMPS CLIMBING ABOUT 10 DEGREES EACH DAY.

KOCH

Nearby

Severe Thunderstorm Warnings in Kansas, 2000 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.