Alert archive / Missouri / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 127, NWS Kansas City, MO

August 15, 1997Putnam County, Missouri

NWS Kansas City, MO issued this severe thunderstorm warning at Aug 15, 1997, 10:29 PM CDT for Putnam County, Missouri. It was in force for 31 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: Aug 15, 1997, 10:29 PM CDT (03:29 UTC)
Expired: Aug 15, 1997, 11:00 PM CDT
In force: 31 min
Issued by: NWS Kansas City, MO
Area: Whole counties

County Putnam County, MO

The radar

The Des Moines radar (KDMX), 151 km from the middle of the area, began a volume at 03:32 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

Davenport, (KDVN), launched 00:00Z, 3.5 hours before the alert went out and 246 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: 2106 J/kg
Mixed-layer CIN: -4 J/kg
Mixed-layer LCL: 1224 m above ground
0-6 km bulk shear: 41 kt
0-1 km storm-relative helicity: 87 m²/s²
0-3 km storm-relative helicity: 156 m²/s²
Significant tornado parameter: 0.7
Supercell composite: 5.1

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMCI 160329 RRA
SVRMCI
MOC171-160400-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PLEASANT HILL/KANSAS CITY MO
1029 PM CDT FRI AUG 15 1997

* SEVERE THUNDERSTORM WARNING FOR
    EASTERN PUTNAM COUNTY - NORTH CENTRAL MISSOURI
 
* UNTIL 1100 PM CDT

* SOME LOCATIONS AFFECTED
    UNIONVILLE AT 1030 PM
    GRAYSVILLE AT 1040 PM
    LIVONIA AT 1045 PM

* AT 1025 PM LOCAL LAW ENFORCEMENT REPORTED A SEVERE THUNDERSTORM AT
  UNIONVILLE MOVING EAST AT 30 MPH.  HAIL RANGING FROM GOLF BALL UP
  TO BASEBALL SIZE WAS REPORTED IN UNIONVILLE WITH THIS STORM.

PEOPLE IN THE PATH OF THIS STORM CAN EXPECT HAIL UP TO 2 INCHES IN
SIZE AND WIND GUSTS TO 70 MPH.

SEVERE THUNDERSTORMS PRODUCE LARGE HAIL AND DAMAGING WINDS.  FOR
YOUR SAFETY...MOVE INDOORS AND STAY AWAY FROM WINDOWS.

PC
 

&

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 Aug 15, 2:56 PM CDT, 7 hours 33 minutes earlier.

Area forecast discussion, Aug 15, 2:56 PM CDT, 7 hours 33 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PLEASANT HILL/KANSAS CITY MO
255 PM CDT FRI AUG 15 1997

ACTIVE WX PATRN FOR MID-AUGUST ON TAP. MAIN CONCERN IS POPS THRU
PD...WITH TEMP QUESTIONS BY THE END OF THE PD. IN THE SHORT
TERM...TROPICAL PLUME REMAINS WELL S OF FA AND CAP IS HOLDING
FIRM...SO WL XPCT PM CU TO DISSIPATE AFTER SUNSET...LEAVING M/CLR
SKIES. WITH STG LLVL FLOW AND DWPTS ALREADY INTO THE MID 70S...WL
KEEP TEMPS UP OVERNIGHT.

INTERESTING PITCURE SETTING UP FOR SAT AFTN AS SFC BOUNDARY PROGGED
TO BE ON THE DOORSTEP BY 17/00Z. WITH HI INSTABILITY AND DECENT
DYNAMICS...THE QUESTION IS WHEN ACTIVITY WL BE ABLE TO BREAK THE
CAP. ATTM THINK THE EARLIEST THIS COULD HAPPEN WOULD BE VERY LATE
SAT AFTN...WITH SAT EVE A MORE LIKELY TIMEFRAME. TEMPS SHOULD ONCE
AGAIN SOAR...BUT HEAT INDICES SHOULD STAY BLO ADV CRITERIA.

FNT PROGD TO CLEAR FA ON SUN...KNOCKING QUITE A BIT OFF OUR TEMPS.
WL KEEP POPS AROUND...ESPECIALLY CLOSER TO LLVL MSTR CVGNC.

.EAX...NONE.

JHV

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 15, 9:44 PM CDT	Severe Thunderstorm Warning	EAX	Putnam	46 min

Nearby

Severe Thunderstorm Warnings in Missouri, 1997 Every severe thunderstorm warning in 1997

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.