Alert archive / Missouri / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 241, NWS Kansas City, MO

July 24, 2001Grundy County, Sullivan County, Missouri

NWS Kansas City, MO issued this severe thunderstorm warning at Jul 24, 2001, 10:24 PM CDT for Grundy County, Sullivan County, Missouri. It was in force for 51 min. 2 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: Jul 24, 2001, 10:24 PM CDT (03:24 UTC)
Expired: Jul 24, 2001, 11:15 PM CDT
In force: 51 min
Issued by: NWS Kansas City, MO
Area: Whole counties

Counties Grundy County, MO, Sullivan County, MO

The radar

The Pleasant Hill radar (KEAX), 170 km from the middle of the area, began a volume at 03:24 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
Jul 24, 10:28 PM CDT	Hail 0.75	Spickard, MO	Ham radio reported 3/4 inch hail and measured 65 mph wind gusts.
Jul 24, 11:03 PM CDT	Thunderstorm Wind 52 E	Milan, 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jul 24, 10:00 PM CDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Topeka, KS (KTOP), launched 00:00Z, 3.4 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: 2387 J/kg
Mixed-layer CIN: -17 J/kg
Mixed-layer LCL: 2041 m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: 140 m²/s²
0-3 km storm-relative helicity: 277 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 28.5

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KEAX 250322
SVRMCI

MOC079-211-250415-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
1024 PM CDT TUE JUL 24 2001

THE NATIONAL WEATHER SERVICE IN PLEASANT HILL HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN GRUNDY COUNTY IN NORTH CENTRAL MISSOURI
  SULLIVAN COUNTY IN NORTH CENTRAL MISSOURI

* UNTIL 1115 PM CDT

* AT 1024 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM OVER SPICKARD...OR ABOUT 10 MILES NORTH OF
  TRENTON...MOVING EAST AT 35 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  GALT AT 1035 PM CDT
  OSGOOD AT 1040 PM CDT
  REGER AT 1050 PM CDT
  MILAN AT 1100 PM CDT
  BOYNTON AT 1105 PM CDT
  GREEN CITY AT 1110 PM CDT

THIS SEVERE THUNDERSTORM WILL LIKELY PRODUCE QUARTER SIZE HAIL...AND
WINDS IN EXCESS OF 60 MPH. FOR YOUR SAFETY...MOVE INDOORS AND STAY
AWAY FROM WINDOWS. REMEMBER...LI&GHTNING IS A THREAT FROM ALL
THUNDERSTORMS. HEAVY RAINS CAN CAUSE LOCALIZED FLOODING OF LOW LYING
AREAS.

BUNTING

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 Jul 24, 2:16 PM CDT, 8 hours 8 minutes earlier.

Area forecast discussion, Jul 24, 2:16 PM CDT, 8 hours 8 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
216 PM CDT TUE JUL 24 2001

FORECAST CONCERNS: PROB OF RAIN TONIGHT INTO WED...TEMP THRU WED
NITE.

NOCTURNAL CONVECT HAS PLAYED HAVOC ON TEMP AND PCPN IN RECENT
DAYS...AND ONCE AGAIN...SHORT TERM MODELS DIVERGENT ON FCST.
MCS CTNS TO TRACK WELL NORTH OF FA...WITH TRALING SHRA RMNG JUST
NORTH OF IA BORDER. CLDS RMN OVR NRN PART OF CWA FRM DEBRIS
LEFT FRM SHRA/TSRA EARLIER THIS MRNG. WEAK OUTFLOW/SFC TROF XTNDS
FRM NRN IA...ACRS SE NE...INTO WRN KS. ATMOS ESSENTIALLY UNCAPPED...BUT
WITH ONLY WEAK SFC CONV AND MAX TEMPS FLIRTING WITH CONVECT TEMPS...
DONT THINK TSRA WL REDEVELOP THIS AFTN...AS SYN SCALE SUB OCCURING
DUE TO PSG OF 70/50 DAM SHRTWV.

TONIGHT IS A TUFF CALL...LATEST WV LOOP INDICATES NXT SHRTWV TO OVERTOP
RDG LOCATED IN WRN NM. APPEARS TO BE A LTL STGR THAN MODELS ARE
INDICATING...WITH AVN HVG BEST HNDL OF SITN.  THIS FEATURE PROGGD TO
FIRE CONVECT ALNG FRNT RANGE THIS AFTN. MVMNT OF FEATURE
A LTL SLOWER AND FURTHER NORTH THAN EARLIER RUNS...THUS DEVELOPMENT OF
MCS WL BE LATER THAN EXPECTED.  BTR 85-70 DAM WAA LOCATED TO THE
WEST AND NORTH OF CWA...AND ZONE OF WEAK ISN LIFT XTNDS FRM ACRS NRN
KS INTO NRN MO. MODELS HINTING AT MCS DEVELOPMENT...BUT WHERE? WL
PLACE HIEST POPS IN NW...TAPERING TO LO CHC ALNG SRN TIER OF COUNTIES.
FEEL THE DEATH KNELL FOR EXC HEAT WRNG WL ARRIVE TMRW WITH CONVECT
DEBRIS AND SHRA.  NOT PLANNING TO XTND EXC HEAT WRNG BYND TONIGHT.

FEEL BNDRY WL NOT PUSH AS FAR SOUTH AS ETA/META SUGGESTING...AND
LEANING TWD WARMER FWC NUMBERS FOR WED.  CONSENSUS IN
SHORT TERM MODELS WITH REGARD TO BNDRY LOCATION ON THU...THAT
BEING SOUTH OF CWA. ENUF ISN LIFT AND WAA TO PRODUCE SCT SHRA/TSRA
ACRS SRN ZONES...SO WL LEAVE LO CHC POPS FOR THIS AREA. WL KEEP
FCST DRY FOR REST OF AREA ON THU INTO THU NITE.  NXT CHC OF
POPS COMES FRI AFTN INTO SAT MRNG...WITH AVN BRINGING PROGRESSIVE
SHRTWV THRU AREA.  TEMPS THURS THRU SAT WL BE NEAR NORMAL...WITH
BLDG RDG HTG THINGS UP LATE IN FCST PD.

.EAX...
MO...ZONES 28>33-37>40-43>46-53>54...EXCESSIVE HEAT WARNING THRU
TONIGHT.
KS...ZONES 28-57-60-103>105...EXCESSIVE HEAT WARNING THRU TONIGHT

24

In the hours before

Local storm report, Jul 24, 9:54 PM CDT, 30 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
954 PM CDT TUE JUL 24 2001

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

0935 PM    2 NW PRINCETON            MO   .88 INCH HAIL
07/24/01   MERCER                         REPORTED BY HAM RADIO
                                          OPERATOR. OCCURRED ON
                                          THE NORTHEAST SIDE OF
                                          LAKE PAHO

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 24, 9:25 PM CDT	Severe Thunderstorm Warning	EAX	Harrison, Mercer	65 min
Jul 24, 9:47 PM CDT	Severe Thunderstorm Warning	EAX	Nodaway, Worth	58 min
Jul 24, 10:03 PM CDT	Severe Thunderstorm Warning	EAX	Putnam	42 min
Jul 24, 10:34 PM CDT	Severe Thunderstorm Warning	EAX	Harrison	56 min
Jul 24, 10:45 PM CDT	Severe Thunderstorm Warning	EAX	Gentry, Nodaway, Worth	45 min
Jul 24, 11:30 PM CDT	Severe Thunderstorm Warning	EAX	Gentry	45 min
Jul 24, 11:43 PM CDT	Severe Thunderstorm Warning	EAX	Grundy, Mercer	62 min
Jul 25, 12:09 AM CDT	Severe Thunderstorm Warning	EAX	Adair	36 min
Jul 25, 1:10 AM CDT	Severe Thunderstorm Warning	EAX	Andrew, Holt, Nodaway	50 min
Jul 25, 1:19 AM CDT	Severe Thunderstorm Warning	EAX	Macon, Randolph	41 min

Nearby

Severe Thunderstorm Warnings in Missouri, 2001 Every severe thunderstorm warning in 2001

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.