Alert archive / Missouri / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 49, NWS Kansas City, MO

May 21, 1998Putnam County, Schuyler County, Missouri

NWS Kansas City, MO issued this severe thunderstorm warning at May 21, 1998, 11:52 PM CDT for Putnam County, Schuyler County, Missouri. It was in force for 43 min. No storm report in the archive falls 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.

The facts

Issued: May 21, 1998, 11:52 PM CDT (04:52 UTC)
Expired: May 22, 1998, 12:35 AM CDT
In force: 43 min
Issued by: NWS Kansas City, MO
Area: Whole counties; the outline is the Mesonet’s reconstruction

Counties Putnam County, MO, Schuyler 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 21, 11:00 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Davenport, (KDVN), launched 00:00Z, 4.9 hours before the alert went out and 236 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: 2074 m above ground
0-6 km bulk shear: 43 kt
0-1 km storm-relative helicity: -65 m²/s²
0-3 km storm-relative helicity: 91 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.

366 
WUUS1 KMCI 220453 RRA
SVRMCI
MOC171-197-220535-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PLEASANT HILL KANSAS CITY MO
1152 PM CDT THU MAY 21 1998

THE NATIONAL WEATHER SERVICE IN PLEASANT HILL HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR
     SCHUYLER COUNTY IN MISSOURI
     PUTNAM COUNTY IN MISSOURI

* UNTIL 1235 AM CDT

* AT 1149 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 10 MILES NORTHEAST OF POWERSVILLE...MOVING
  SOUTHEAST AT 55 MILES PER HOUR.

* THE SEVERE THUNDERSTORM WILL BE
     NEAR UNIONVILLE AT 1155 PM CDT      
     OVER HARTFORD AT 1205 AM CDT
     OVER GRAYSVILLE AT 1210 AM CDT
     OVER WORTHINGTON AT 1215 AM CDT
     NEAR QUEEN CITY AT 1225 AM CDT

PEOPLE IN THE PATH OF THIS STORM...CAN EXPECT HAIL UP TO 1 INCH IN 
DIAMETER...AND WIND GUSTS UP TO 70 MPH.

LAT...LON 4036 9237 4039 9334 4062 9338 4066 9357
          4093 9322 4066 9237

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 21, 3:15 PM CDT, 8 hours 37 minutes earlier.

Area forecast discussion, May 21, 3:15 PM CDT, 8 hours 37 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
315 PM CDT THU MAY 21 1998

FCST CONCERNS CENTER ON QSTNRY SFC BOUNDARY DRAPED ACROSS SRN EDGE
OF CWA. SEVERAL IMPULSES EVIDENT ON WV IMAGERY ROTATING AROUND UPPER
LOW...AND FCST IS JUST A MATTER OF TIMING WHEN THESE IMPULSES
TRIGGER ACTIVITY. XPCT BOUNDARY TO SIT PRETTY MUCH IN PLACE FOR
FIRST 36H OF FCST PD BEFORE BEGINNING TO LIFT N SLIGHTLY AS UPR LOW
EJECTS.

CRNT THINKING IS TO EXPECT MORE NUMEROUS BUT POSSIBLY WEAKER CELLS
UP NORTH...WITH MORE SCATTERED BUT POTENTIALLY STRONGER CELLS
FURTHER S. WL WORD NRN ZONES FOR RESULTANT WATER THREAT ALTHOUGH
WILL HOLD OFF ON FFA (THX OAX) FOR NOW AND LET MID SHIFT REEVALUATE.
WL GRADUALLY PEEL OFF POPS IN THE OUT PERIODS AS FOCUS SHIFTS BACK
NORTH.

WL KEEP TSRA MENTION IN XTNDD AS PINWHEEL EFFECT CONTINUES.

.EAX...
MO...NONE.
KS...NONE.

JHV

The office that day

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

Issued	Product	Office	Counties	Lasted
May 22, 12:35 AM CDT	Severe Thunderstorm Warning	EAX	Adair, Schuyler	60 min

Nearby

Severe Thunderstorm Warnings in Missouri, 1998 Every severe thunderstorm warning in 1998

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.