Alert archive / Missouri / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 82, NWS Kansas City, MO

May 18, 1997Ray County, Missouri

NWS Kansas City, MO issued this severe thunderstorm warning at May 18, 1997, 10:05 PM CDT for Ray County, Missouri. It was in force for 55 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: May 18, 1997, 10:05 PM CDT (03:05 UTC)
Expired: May 18, 1997, 11:00 PM CDT
In force: 55 min
Issued by: NWS Kansas City, MO
Area: Whole counties

County Ray County, MO

The radar

The Pleasant Hill radar (KEAX), 65 km from the middle of the area, began a volume at 03:05 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.

Issued	Product	Office	Lasted
May 18, 5:30 PM CDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Topeka, KS (KTOP), launched 00:00Z, 3.1 hours before the alert went out and 148 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: 2665 J/kg
Mixed-layer CIN: -12 J/kg
Mixed-layer LCL: 2061 m above ground
0-6 km bulk shear: 24 kt
0-1 km storm-relative helicity: 28 m²/s²
0-3 km storm-relative helicity: 85 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 3.4

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMCI 190305 RRA
SVRMCI
MOC177-190400-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PLEASANT HILL/KANSAS CITY MO
1005 PM CDT SUN MAY 18 1997

* SEVERE THUNDERSTORM WARNING FOR
    RAY COUNTY - NORTHWEST MISSOURI
 
* UNTIL 11 PM CDT

* SOME LOCATIONS AFFECTED
    RAYVILLE BY 1030 PM
    DOCKERY BY 1040 PM

* AT 1005 PM WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE
  THUNDERSTORM NEAR KEARNEY MOVING EAST AT 20 MPH.

PEOPLE IN THE PATH OF THIS STORM CAN EXPECT HAIL UP TO 2 INCHES IN
DIAMETER AND WIND GUSTS TO 65 MPH.

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

MAXIMUK

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 18, 2:43 PM CDT, 7 hours 22 minutes earlier.

Area forecast discussion, May 18, 2:43 PM CDT, 7 hours 22 minutes before

NORTHWEST MISSOURI FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PLEASANT HILL/KANSAS CITY MO
240 PM CDT SUN MAY 18 1997

ROUND THREE...ALTHO SITN NOT AS CLEAR CUT AS I WOULD PREFER.
VERY/XTRMLY UNSTABLE AIR IN PLACE TODAY WITH CAPES FCST TO REACH AOA
3000 J/KG GIVEN A SFC PARCEL OF 90/64.  HOWEVER...STILL SOME NEGATIVE
AREA ON SOUNDING WITH THOSE NUMBERS...AND IT'S MORE THAN WAS IN PLACE
YDAY.  SPOT WE WERE KIND OF LOOKING AT FOR CONVECTIVE INITIATION...NW
MO...HAS BEEN UNDER BKN AC DECK...REDUCING HEATING. CONVERGENCE ALONG
PRE-FRONTAL TROF FROM SERN NEB TO SWRN KS NOT ALL THAT STRONG...THO HAS
BEEN INCRG PAST COUPLE OF HOURS PER ADAP. INTERESTING DEVELOPMENT IS
SECONDARY SFC LOW TAKING SHAPE ACRS SWRN KS. ETA FCSTS THIS LOW TO
DEEPEN THRU MIDNIGHT WHICH IN TURN SHD HELP KEEP OUR LOW LVL WINDS FROM
VEERING AROUND TOO TERRIBLY MUCH.  CONVERGENCE ALONG FRONT THEN SHOULD
BE ENHANCED WHICH SHOULD FINALLY GET STUFF GOING.

JUST TOOK AT LOOK AT 18Z SOUNDING FROM TOP AND CIN (NEG AREA) A BIT
MORE STOUT THAN I HAD EXPECTED BASED ON 12Z RUN.  THIS LEADS ME TO
BELIEVE IT WILL BE A LATE SHOW...LATER THAN LAST NIGHT.  15Z RUC SHOWS
NO PCPN IN CWA THRU 03Z AND I'M INCLINED TO THINK IT'S GOT THE RIGHT
IDEA (DESPITE THE FACT THAT RUC BLEW IT LAST NIGHT).  BOTTOM LINE THO
CONVGC ALG FRONT SHOULD EVENTUALLY OVERCOME CAP WITH ETA GENERATING
COPIOUS QPF'S IN 03-12Z TIME FRAME.  NOT QUITE READY TO JUMP ONTO FWC'C
CATEGORICAL POPS BANDWAGON THO (WILL PROBABLY JUST USE COVERAGE VS POPS
FOR NRN ZONES WITH AS PERSISTENT SHRA/TSRA CONTINUE). GIVEN
THUNDER...SVR SHD FOLLOW AND CURRENT ZONES HAVE THIS MENTIONED. MID-LVL
WINDS STILL PRETTY WEAK...BUT STRONGER ALG IA BORDER WHERE TOR THREAT
IS PROBABLY HIGHER THAN SRN ZONES.  WITH 3000 CAPE THO...ALL BETS OFF
DESPITE LACK OF GOOD TURNING IN LOW LVL WINDS.

ENUF ABOUT 1ST PD.  STILL SOME Q-VECTOR CONVGC AND UPWARD VV'S AFT 12Z
MON AS UPR WAVE DOESN'T QUITE CLEAR AREA UNTIL MIDDAY.  THO THINK LINE
OF TSRA WILL HAVE CLEARED CWA BY 12Z MON...PSBLTY OF PCPN LINGERING
INTO 2ND PERIOD WARRANTS CONTINUING CHC POPS FOR NOW.

SIGNIFICANT COOLING TO TAKE PLACE IN 2ND AND 3RD PERIODS WITH 850 ZERO
C DEG LINE FCST TO DROP INTO NRN MO BY 48 HRS.  SORT OF PREFER WARMER
FWC...THO NOT QUITE READY NUDGE TEMPS BACK UPWARD FOR MON.  SFC RIDGE
AXIS JUST TO OUR WEST BY 12Z TUE SO WINDS LOOK LIKE THEY MAY STAY UP
JUST ENUF MON NIGHT TO KEEP MINS FROM BOTTOMING OUT TOO BAD.  NICE DAY
SET FOR TUE AND GUIDANCE FINE.

MCI EU 057/064 045/070 050 99740

MANION

In the hours before

Local storm report, May 18, 7:28 PM CDT, 2 hours 37 minutes before

PRELIMINARY LOCAL STORM REPORT...CORRECTION
NATIONAL WEATHER SERVICE PLEASANT HILL/KANSAS CITY MISSOURI
725 PM CDT SUN MAY 18 1997

...CORRECTION TO TIMES...TO ADD REPORT...AND TO CHANGE COUNTY..,

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

0617 PM    LAREDO                    MO   1 INCH HAIL
05/18/97   GRUNDY

0628 PM    4 SSW HUMPHRIES           MO   1.75 INCH HAIL
05/18/97   SULLIVAN

0636 PM    2 W BROWNING              MO   .88 INCH HAIL
05/18/97   LINN

0659 PM    BROWNING                  MO   1 INCH HAIL
05/18/97   SULLIVAN           @

Local storm report, May 18, 9:31 PM CDT, 34 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PLEASANT HILL/KANSAS CITY MISSOURI
931 PM CDT SUN MAY 18 1997

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

0730 PM    WINIGAN                   MO   1.75 INCH HAIL
05/18/97   SULLIVAN                       GOLFBALL HAIL 1 EAST OF
                                          WINIGAN

0736 PM    13 E SAVANNAH             MO   .75 INCH HAIL
05/18/97   ANDREW                         DIME SIZE HAIL

0737 PM    OAK                       MO   .75 INCH HAIL
05/18/97   DE KALB                        DIME SIZE HAIL 1 MI N OF
                                          OAK

0746 PM    NOVINGER                  MO   .88 INCH HAIL
05/18/97   ADAIR                          NICKLE SIZE HAIL 8 MILES
                                          WEST OF NOVINGER

0810 PM    GREENTOP                  MO   1 INCH HAIL
05/18/97   SCHUYLER                       QUARTER SIZE HAIL 5 E
                                          GREENTOP

0811 PM    LANSING                   KS   1.75 INCH HAIL
05/18/97   LEAVENWORTH                    GOLFBALL HAIL IN LANSING
                                          JARBOLO AND BASEHOR

0851 PM    GIFFORD                   MO   .75 INCH HAIL
05/18/97   MACON                          DIME SIZE HAIL JUST SOUTH
                                          OF GIFFORD

0900 PM    KIRKSVILLE                MO   1.75 INCH HAIL
05/18/97   ADAIR                          GOLFBALL HAIL FELL FOR 5
                                          MINUTES

CORRECTED 737 PM REPORT

Local storm report, May 18, 9:34 PM CDT, 31 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PLEASANT HILL/KANSAS CITY MISSOURI
931 PM CDT SUN MAY 18 1997

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

0730 PM    WINIGAN                   MO   1.75 INCH HAIL
05/18/97   SULLIVAN                       GOLFBALL HAIL 1 EAST OF
                                          WINIGAN

0736 PM    13 E SAVANNAH             MO   .75 INCH HAIL
05/18/97   ANDREW                         DIME SIZE HAIL

0737 PM    OAK                       MO   .75 INCH HAIL
05/18/97   DE KALB                        DIME SIZE HAIL 1 MI N OF
                                          OAK

0746 PM    NOVINGER                  MO   .88 INCH HAIL
05/18/97   ADAIR                          NICKLE SIZE HAIL 8 MILES
                                          WEST OF NOVINGER

0810 PM    GREENTOP                  MO   1 INCH HAIL
05/18/97   SCHUYLER                       QUARTER SIZE HAIL 5 E
                                          GREENTOP

0811 PM    LANSING                   KS   1.75 INCH HAIL
05/18/97   LEAVENWORTH                    GOLFBALL HAIL IN LANSING
                                          JARBOLO AND BASEHOR

0851 PM    GIFFORD                   MO   .75 INCH HAIL
05/18/97   MACON                          DIME SIZE HAIL JUST SOUTH
                                          OF GIFFORD

0900 PM    KIRKSVILLE                MO   1.75 INCH HAIL
05/18/97   ADAIR                          GOLFBALL HAIL FELL FOR 5
                                          MINUTES

CORRECTED 737 PM REPORZT

Special weather statement, May 18, 9:56 PM CDT, 9 minutes before

KSZ025-102-MOZ001>005-011>014-020-190700-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PLEASANT HILL/KANSAS CITY MO
956 PM CDT SUN MAY 18 1997

...SEVERE THUNDERSTORM WATCH CANCELLED FOR NORTHWEST MISSOURI...

THE SEVERE THUNDERSTORM WATCH HAS BEEN CANCELLED FOR NORTHWEST
MISSOURI. THIS CANCELLATION AREA INCLUDES ATCHISON KS...ST
JOSEPH...MAYSVILLE...ALBANY...GRANT CITY...SAVANNAH...MARYVILLE
...MOUND CITY AND TARKIO.

THERE STILL MAY BE A FEW THUNDERSTORMS LEFT OVER UP UNTIL MIDNIGHT
ESPECIALLY OVER BUCHANAN COUNTY BUT NO SEVERE WEATHER IS EXPECTED.

BODNER

Special weather statement, May 18, 9:58 PM CDT, 7 minutes before

KSZ025-102-MOZ001>005-011>014-020-190700-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PLEASANT HILL/KANSAS CITY MO
956 PM CDT SUN MAY 18 1997

...SEVERE THUNDERSTORM WATCH CANCELLED FOR NORTHWEST MISSOURI...

THE SEVERE THUNDERSTORM WATCH HAS BEEN CANCELLED FOR NORTHWEST
MISSOURI. THIS CANCELLATION AREA INCLUDES ATCHISON KS...ST
JOSEPH...MAYSVILLE...ALBANY...GRANT CITY...SAVANNAH...MARYVILLE
...MOUND CITY AND TARKIO.

THERE STILL MAY BE A FEW THUNDERSTORMS LEFT OVER UP UNTIL MIDNIGHT
ESPECIALLY OVER BUCHANAN COUNTY BUT NO SEVERE WEATHER IS EXPECTED.

BODNER

The office that day

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

Issued	Product	Office	Counties	Lasted
May 18, 7:07 PM CDT	Severe Thunderstorm Warning	EAX	Adair	68 min
May 18, 7:21 PM CDT	Severe Thunderstorm Warning	EAX	Andrew, DeKalb	69 min
May 18, 7:26 PM CDT	Severe Thunderstorm Warning	EAX	Sullivan	34 min
May 18, 7:58 PM CDT	Severe Thunderstorm Warning	EAX	Schuyler	47 min
May 18, 8:04 PM CDT	Severe Thunderstorm Warning	EAX	Platte	56 min
May 18, 8:13 PM CDT	Severe Thunderstorm Warning	EAX	Adair	47 min
May 18, 8:29 PM CDT	Severe Thunderstorm Warning	EAX	Caldwell, Livingston	61 min
May 18, 8:31 PM CDT	Severe Thunderstorm Warning	EAX	Clay	59 min
May 18, 8:44 PM CDT	Severe Thunderstorm Warning	EAX	Linn, Macon	61 min
May 18, 8:50 PM CDT	Severe Thunderstorm Warning	EAX	Ray	70 min
May 18, 9:03 PM CDT	Severe Thunderstorm Warning	EAX	Adair	57 min
May 18, 9:52 PM CDT	Severe Thunderstorm Warning	EAX	Clay	53 min
May 18, 9:54 PM CDT	Severe Thunderstorm Warning	EAX	Cass, Jackson	51 min
May 18, 10:22 PM CDT	Severe Thunderstorm Warning	EAX	Johnson, Lafayette	53 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.