Alert archive / Missouri / Tornado Warnings in 2008

Tornado Warning 40, NWS Kansas City, MO

July 21, 2008Grundy County, Linn County, Livingston County, Missouri

NWS Kansas City, MO issued this tornado warning at Jul 21, 2008, 8:17 PM CDT for Grundy County, Linn County, Livingston County, Missouri. It was in force for 43 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
Jul 21, 2008, 8:17 PM CDT (01:17 UTC)
Expired
Jul 21, 2008, 9:00 PM CDT
In force
43 min
Issued by
NWS Kansas City, MO
Area
Storm-based polygon

Counties Grundy County, MO, Linn County, MO, Livingston County, MO

The radar

The Pleasant Hill radar (KEAX), 155 km from the middle of the area, began a volume at 01:16 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
Jul 21, 8:31 PM CDTTORNADO2 N Laredo, MOTREE LIMBS BEING LIFTED

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

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

IssuedProductOfficeLasted
Jul 21, 5:10 PM CDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Topeka, KS (KTOP), launched 00:00Z, 1.3 hours before the alert went out and 224 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 2008-07-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1165 joules per kilogram.LCLEL10008507005003002001001 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 2008-07-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -2 square meters per square second.1939Sfc1 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
1165 J/kg
Mixed-layer CIN
-26 J/kg
Mixed-layer LCL
2536 m above ground
0-6 km bulk shear
13 kt
0-1 km storm-relative helicity
-2 m²/s²
0-3 km storm-relative helicity
44 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
WFUS53 KEAX 220117
TOREAX
MOC079-115-117-220200-
/O.NEW.KEAX.TO.W.0040.080722T0117Z-080722T0200Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
817 PM CDT MON JUL 21 2008

THE NATIONAL WEATHER SERVICE IN PLEASANT HILL HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHEASTERN GRUNDY COUNTY IN NORTH CENTRAL MISSOURI
  NORTHWESTERN LINN COUNTY IN NORTH CENTRAL MISSOURI
  NORTHEASTERN LIVINGSTON COUNTY IN NORTH CENTRAL MISSOURI

* UNTIL 900 PM CDT

* AT 816 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
  STORM WAS LOCATED 6 MILES WEST OF GALT...OR 7 MILES EAST OF
  TRENTON...AND MOVING SOUTHEAST AT 20 MPH.

* THIS TORNADIC STORM WILL REMAIN OVER MAINLY RURAL AREAS OF
  NORTHEASTERN LIVINGSTON...NORTHWESTERN LINN AND SOUTHEASTERN GRUNDY
  COUNTIES...INCLUDING THE FOLLOWING LOCATIONS LAREDO AND CHULA.

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE
NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

DO NOT USE YOUR CAR TO TRY TO OUTRUN A TORNADO. CARS ARE EASILY
TOSSED AROUND BY TORNADO WINDS. IF YOU ARE CAUGHT IN THE PATH OF A
TORNADO...LEAVE THE CAR AND GO TO A STRONG BUILDING. IF NO SAFE
STRUCTURE IS NEARBY...SEEK SHELTER IN A DITCH OR LOW SPOT AND COVER
YOUR HEAD.

LAT...LON 4011 9342 4006 9336 4003 9337 4003 9336
      4004 9334 3994 9323 3987 9355 4013 9360
TIME...MOT...LOC 0117Z 335DEG 17KT 4010 9349

$$

NRR
2 follow-up statements
000 
WWUS53 KEAX 220139
SVSEAX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
838 PM CDT MON JUL 21 2008

MOC079-115-117-220200-
/O.CON.KEAX.TO.W.0040.000000T0000Z-080722T0200Z/
LIVINGSTON MO-LINN MO-GRUNDY MO-
838 PM CDT MON JUL 21 2008

...A TORNADO WARNING REMAINS IN EFFECT FOR SOUTHEASTERN GRUNDY...
NORTHWESTERN LINN AND NORTHEASTERN LIVINGSTON COUNTIES IN NORTH
CENTRAL MISSOURI UNTIL 900 PM CDT...

AT 836 PM CDT...TRAINED WEATHER SPOTTERS REPORTED A FUNNEL CLOUD AND 
HAS A HISTORY OF PRODUCING TORNADOES. THIS TORNADIC STORM WAS 
LOCATED 8 MILES SOUTH OF GALT...OR 12 MILES SOUTHEAST OF 
TRENTON...MOVING SOUTHEAST AT 24 MPH.

THIS STORM WILL AFFECT MAINLY RURAL AREAS OF NORTHEASTERN 
LIVINGSTON...NORTHWESTERN LINN AND SOUTHEASTERN GRUNDY COUNTIES.

WHEN A TORNADO WARNING IS ISSUED BASED ON DOPPLER RADAR...IT MEANS
THAT STRONG ROTATION HAS BEEN DETECTED WITHIN THE STORM. A TORNADO
MAY ALREADY BE ON THE GROUND...OR IS EXPECTED TO DEVELOP SHORTLY. IF
YOU ARE IN THE PATH OF THIS DANGEROUS STORM...MOVE INDOORS AND TO THE
LOWEST LEVEL OF THE BUILDING OR TO AN INTERIOR ROOM OR CLOSET. IF
DRIVING...DO NOT SEEK SHELTER UNDER A HIGHWAY OVERPASS.

IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER IN A NEARBY REINFORCED
BUILDING. AS A LAST RESORT...SEEK SHELTER IN A CULVERT...DITCH OR LOW
SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
IN PLEASANT HILL.

LAT...LON 4011 9342 4006 9336 4003 9337 4003 9336
      4004 9334 3994 9323 3987 9355 4013 9360
TIME...MOT...LOC 0138Z 323DEG 21KT 4000 9340

$$

NRR
000 
WWUS53 KEAX 220154
SVSEAX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
855 PM CDT MON JUL 21 2008

MOC079-115-117-220205-
/O.EXP.KEAX.TO.W.0040.000000T0000Z-080722T0200Z/
LIVINGSTON MO-LINN MO-GRUNDY MO-
855 PM CDT MON JUL 21 2008

...THE TORNADO WARNING FOR SOUTHEASTERN GRUNDY...NORTHWESTERN LINN
AND NORTHEASTERN LIVINGSTON COUNTIES IN NORTH CENTRAL MISSOURI WILL
EXPIRE AT 900 PM CDT...

AT 850 PM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED THAT THE
THUNDERSTORMS WHICH PROMPTED THE WARNING HAVE WEAKENED...AND NO
LONGER POSE AN IMMEDIATE THREAT TO LIFE OR PROPERTY. THEREFORE...THE
TORNADO WARNING WILL BE ALLOWED TO EXPIRE.

TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
IN PLEASANT HILL.

LAT...LON 4011 9342 4006 9336 4003 9337 4003 9336
      4004 9334 3994 9323 3987 9355 4013 9360
TIME...MOT...LOC 0155Z 323DEG 21KT 3992 9332

$$

NRR

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 21, 7:44 PM CDTSevere Thunderstorm WarningEAXAdair46 min
Jul 21, 7:48 PM CDTSevere Thunderstorm WarningEAXGrundy, Mercer, Sullivan42 min
Jul 21, 7:57 PM CDTTornado WarningEAXGrundy, Sullivan33 min
Jul 21, 8:04 PM CDTTornado WarningEAXAdair, Sullivan41 min
Jul 21, 8:07 PM CDTSevere Thunderstorm WarningEAXAdair, Macon38 min
Jul 21, 8:20 PM CDTTornado WarningEAXLinn, Macon, Sullivan40 min
Jul 21, 8:43 PM CDTSevere Thunderstorm WarningEAXMacon62 min
Jul 21, 8:53 PM CDTSevere Thunderstorm WarningEAXAtchison, Holt, Nodaway59 min
Jul 21, 9:26 PM CDTSevere Thunderstorm WarningEAXAndrew, DeKalb, Gentry23 min
Jul 21, 9:33 PM CDTSevere Thunderstorm WarningEAXMacon, Randolph29 min
Jul 21, 10:06 PM CDTSevere Thunderstorm WarningEAXGentry, Nodaway, Worth39 min
Jul 21, 10:26 PM CDTSevere Thunderstorm WarningEAXAdair, Putnam, Sullivan32 min
Jul 21, 10:33 PM CDTSevere Thunderstorm WarningEAXBuchanan, Clay, Clinton, Platte42 min
Jul 22, 1:02 AM CDTSevere Thunderstorm WarningEAXCaldwell, Carroll43 min
Jul 22, 6:09 AM CDTAreal Flood AdvisoryEAXWorth5 hr
Jul 22, 8:40 AM CDTAreal Flood AdvisoryEAXChariton, Howard, Macon, Randolph5 hr
Jul 22, 10:11 AM CDTRiver Flood WarningEAXHoward6 hr

Nearby

Tornado Warnings in Missouri, 2008Every tornado warning in 2008Tornadoes in 2008

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.