Alert archive / Missouri / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 22, NWS Kansas City, MO

March 9, 2002Linn County, Missouri

NWS Kansas City, MO issued this severe thunderstorm warning at Mar 9, 2002, 12:03 AM CST for Linn County, Missouri. It was in force for 42 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Mar 9, 2002, 12:03 AM CST (06:03 UTC)
Expired
Mar 9, 2002, 12:45 AM CST
In force
42 min
Issued by
NWS Kansas City, MO
Area
Counties, with a storm outline in the text

County Linn County, MO

The radar

The Pleasant Hill radar (KEAX), 154 km from the middle of the area, began a volume at 06:05 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.

What was reported inside it

TimeReportWhereRemark
Mar 9, 12:20 AM CSTHail 0.75Brookfield, 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.

IssuedProductOfficeLasted
Mar 8, 11:30 PM CSTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Topeka, KS (KTOP), launched 00:00Z, 6.1 hours before the alert went out and 234 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-pSkew-T log-p diagram, Topeka, KS at 00:00Z on 2002-03-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 727 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Topeka, KS at 00:00Z on 2002-03-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 266 square meters per square second.1939587897117Sfc1 km3 km6 km9 kmRMLM
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
727 J/kg
Mixed-layer CIN
-129 J/kg
Mixed-layer LCL
810 m above ground
0-6 km bulk shear
66 kt
0-1 km storm-relative helicity
266 m²/s²
0-3 km storm-relative helicity
332 m²/s²
Significant tornado parameter
0.7
Supercell composite
1.8

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KEAX 090603
SVRMCI
MOC115-090645-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
1203 AM CST SAT MAR 9 2002

THE NATIONAL WEATHER SERVICE IN PLEASANT HILL HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  LINN COUNTY IN NORTH CENTRAL MISSOURI

* UNTIL 1245 AM CST

* AT MIDNIGHT CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DIME SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THESE STORMS WERE LOCATED
  ALONG A LINE EXTENDING FROM 6 MILES WEST OF BROWNING TO FOUNTAIN
  GROVE...AND MOVING EAST AT 50 MPH.

* THE SEVERE THUNDERSTORMS WILL BE NEAR...
   PURDIN...LINNEUS BY 1210 AM CST.
   SHELBY...BROOKFIELD BY 1215 AM CST.

THE TOWN OF LACLEDE IS ALSO IN THE PATH OF THESE STORMS. DIME SIZE 
HAIL AND 60 MPH WINDS WERE REPORTED AT WHEELING IN EASTERN 
LIVINGSTON COUNTY.

THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD
TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.

THIS STORM HAS A HISTORY OF PRODUCING DESTRUCTIVE WINDS AND LARGE
DAMAGING HAIL. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY
AWAY FROM WINDOWS

LAT...LON 4003 9337 3974 9334 3973 9290 4001 9291

DB

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 8, 9:44 PM CSTSevere Thunderstorm WarningEAXAndrew, Holt46 min
Mar 8, 9:58 PM CSTSevere Thunderstorm WarningEAXBuchanan, Platte62 min
Mar 8, 10:17 PM CSTSevere Thunderstorm WarningEAXDeKalb, Gentry, Worth58 min
Mar 8, 10:35 PM CSTSevere Thunderstorm WarningEAXClinton55 min
Mar 8, 10:52 PM CSTSevere Thunderstorm WarningEAXClay, Jackson, Platte53 min
Mar 8, 10:53 PM CSTSevere Thunderstorm WarningEAXCaldwell, Daviess, Harrison37 min
Mar 8, 11:15 PM CSTSevere Thunderstorm WarningEAXRay60 min
Mar 8, 11:21 PM CSTSevere Thunderstorm WarningEAXGrundy, Mercer39 min
Mar 8, 11:25 PM CSTSevere Thunderstorm WarningEAXCass65 min
Mar 8, 11:29 PM CSTSevere Thunderstorm WarningEAXCaldwell, Livingston61 min
Mar 8, 11:46 PM CSTSevere Thunderstorm WarningEAXPutnam, Sullivan59 min
Mar 9, 12:07 AM CSTSevere Thunderstorm WarningEAXCarroll, Chariton53 min
Mar 9, 12:29 AM CSTSevere Thunderstorm WarningEAXAdair, Macon61 min
Mar 9, 12:37 AM CSTSevere Thunderstorm WarningEAXPettis, Saline53 min
Mar 9, 12:43 AM CSTSevere Thunderstorm WarningEAXSchuyler47 min

Nearby

Severe Thunderstorm Warnings in Missouri, 2002Every severe thunderstorm warning in 2002

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.