Hail and Damaging Winds in Missouri, April 20 to 21, 2001

Name: Hail and Damaging Winds in Missouri, April 20 to 21, 2001
Start: 2001-04-20T18:05
End: 2001-04-21T00:10
Location: Missouri

April 20 to 21, 2001 · NWS EAX · 8 events in 7 counties and zones

6 hail, 2 thunderstorm wind, as filed by the National Weather Service.

Where it happened

Every event with a place to put it; 1 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.

Tornadoes
Tropical storms and surge
Floods
Wind
Hail
Winter weather
Heat and drought
Cold
Fire, smoke and dust
Marine and coastal
Other

Open the live radar over this ground

The toll

Deaths: 0
Injuries: 0
Property damage: None recorded
Crop damage: None recorded
Events: 8

Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

What forecasters said that day

The local office's own words before the first event, 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 the first event at Apr 20, 1:50 PM CST, 4 hours 15 minutes earlier.

Area forecast discussion, Apr 20, 1:50 PM CST, 4 hours 15 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
250 PM CDT FRI APR 20 2001

NOTHING EASY WITH THIS FCST PKG THRU MON. FNTL BNDRY FM NE IA THRU
SW IA AND THEN ALG KS/NEB BDR WILL LIKELY BE ONE AREA TO FOCUS
INITIAL CNVTN...AS WELL AS SFC TROF EXTDG THRU CNTRL KS AND ERN TX
PNHDL. STG SHRTWV TRKG ACRS CO WILL AID RPD TSTM DVLPT LT THIS
AFTN/EVE. FTHR S MESO-ETA PICKED UP ON H7 VORT LOBE MOVG THRU OK.
ISOLD CNVTN SPROUTED UP OVR SE KS ON NOSE OF DEEPER MSTR AHD OF THIS
FEATURE. HWVR...AS NOTED ON 18Z SPECIAL SOUNDING TAKEN BY TOP THE
AMS IS CURRENTLY CAPPED...ALBIET MDTLY UNSTBL WITH VERY STEEP MID
LVL LAPSE RATES. VORT LOBE PROGD TO TRK INTO CNTRL MO WHERE APRNT
CNVTV FEEDBACK SHOWS UP SUGG CNVTN COULD INCR ACRS SRN CWA THIS EVE
AS LOBE MOVS THRU. FTHR N THINK BEST CHC FOR CNVTN WILL BE LT THIS
EVE AND WILL GO WITH HIEST POPS FAR NW WHERE INSTBY PROGD TO BE
GTST. WILL ALSO KEEP MENTION OF SVR THIS AREA. MIN TEMPS ABT SAME AS
THIS MRNG MOST AREAS.

QUESTIONS FOR TMRW WILL BE WHERE WILL OUTFLOW BNDRY/WK FNT FM TNGTS
STORMS END UP. ETA A BIT FTHR N THAN PREVIOUS RUNS AND MORE IN LN
WITH AVN WHICH HAS CHGD LTL OVR PAST CPL OF RUNS. SO PLACING BNDRY
NR A MCI S OF IRK LN SEEMS RSNBL. THIS BNDRY WILL THEN ACT TO FOCUS
STG/PSBL SVR TSTM DVLPMT LT SAT AFTN/EVE. MODELS SHOW NO CAP SO
ACTVTY COULD FIRE BY MID AFTN...SO WILL MAINTAIN CHC POPS FOR AFTN
HRS MOST OF CWA. TEMPS COULD BE TRICKY DUE TO LOC OF BNDRY...RAIN
COOLED AIR AND CLDS. FOR NOW WILL GO COOLER N OF BNDRY AND ABT THE
SAME S OF BNDRY. SHUD BE ACTV NGT SAT AND HVY RAIN COULD BE A
PROBLEM.

MAIN UPR SHRTWV PROGD TO COME OUT LT SUN. WIL%L CONT CHC POPS ON SUN
AND ONCE AGAIN GO LIKELY SUN NGT AS UPR SYS APCHS. PCPN SHUD CONT
INTO MON AS UPR SYS SHEARS OUT N OF CWA AND KEEPS FNT FM BLOWING
THRU TILL TUE.

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

JULY

In the hours before

Local storm report, Apr 20, 6:04 PM CST, 1 minute before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
704 PM CDT FRI APR 20 2001

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

0651 PM    2 N BENDENA               KS   .75 INCH HAIL
04/20/01   DONIPHAN                       REPORTED BY EMERGENCY
                                          MANAGEMENT.

0655 PM    TROY                      KS   .88 INCH HAIL
04/20/01   DONIPHAN                       REPORTED BY LAW
                                          ENFORCEMENT OFFICIAL.

0655 PM    3 NW CUMMINGS             KS   .75 INCH HAIL
04/20/01   ATCHISON                       REPORTED BY LAW
                                          ENFORCEMENT OFFICIAL.

The radar

The Pleasant Hill radar (KEAX), 150 km away, was scanning. The volume nearest the first event began at 00:02 UTC.

Open the radar archive at this moment

Event by event

6 hail, 2 thunderstorm wind. Local standard time, as filed.

Hail, Holt

When: April 20, 6:05 PM CST
Where: Holt County, 3 mi SE of New Pt
Measured: 0.75 in hail
Reported by: GENERAL PUBLIC
Coordinates: 40.017, -95.050

Hail, Andrew

When: April 20, 6:18 PM CST
Where: Andrew County, 3 mi SW of Fillmore
Measured: 1 in hail
Reported by: GENERAL PUBLIC
Coordinates: 40.000, -95.017

Hail, Nodaway

When: April 20, 6:34 PM CST
Where: Nodaway County, 3 mi E of Maryville
Measured: 1.75 in hail
Reported by: GENERAL PUBLIC
Coordinates: 40.350, -94.817

Hail, Nodaway

When: April 20, 6:45 PM CST
Where: Nodaway County, 6 mi W of Parnell
Measured: 2.75 in hail
Reported by: GENERAL PUBLIC
Coordinates: 40.433, -94.750

Hail, Worth

When: April 20, 6:52 PM CST
Where: Worth County, 3 mi NE of Sheridan
Measured: 1.75 in hail
Reported by: GENERAL PUBLIC
Coordinates: 40.550, -94.583

Thunderstorm Wind, Daviess

When: April 20, 11:15 PM CST
Where: Daviess County, 1 mi E of Alta Vista
Reported by: LAW ENFORCEMENT
Coordinates: 39.961, -93.985 (the zone’s center; the record gives no point)

Law enforcement reported one inch hail and estimated wind gusts to 60 mph.

Hail, De Kalb

When: April 20, 11:25 PM CST
Where: De Kalb County, Weatherby
Measured: 0.75 in hail
Reported by: AMATEUR RADIO
Coordinates: 39.917, -94.250

Thunderstorm Wind, Sullivan

When: April 21, 12:10 AM CST
Where: Sullivan County, Harris
Measured: 53 kt (61 mph)
Reported by: AMATEUR RADIO
Coordinates: 40.317, -93.350

What these are

Hail: Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.
Thunderstorm Wind: Winds from a thunderstorm of 50 knots (58 mph) or more, or lower winds that caused damage or casualties. Measured gusts are marked MG, estimated EG.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

Every storm in Missouri in 2001 Every state in 2001 This day in weather history Warnings in Missouri, April 2001

Sources

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 5243662, 5243659, 5241519, 5241520, 5241522, 5243660, 5243661, 5241521.