Alert archive / Missouri / Tornado Warnings in 2008

Tornado Warning 29, NWS St. Louis, MO

May 25, 2008Audrain County, Ralls County, Missouri

NWS St. Louis, MO issued this tornado warning at May 25, 2008, 5:48 PM CDT for Audrain County, Ralls 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: May 25, 2008, 5:48 PM CDT (22:48 UTC)
Expired: May 25, 2008, 6:30 PM CDT
In force: 42 min
Issued by: NWS St. Louis, MO
Area: Storm-based polygon

Counties Audrain County, MO, Ralls County, MO

The radar

The St Louis radar (KLSX), 101 km from the middle of the area, began a volume at 22:50 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
May 25, 6:10 PM CDT	HAIL 0.88	Laddonia, MO

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.

Issued	Product	Office	Lasted
Jan 7, 1:52 PM CST	Tornado Watch	SPC	146 days
May 25, 3:58 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 10.8 hours before the alert went out and 269 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1337 m above ground
0-6 km bulk shear: 20 kt
0-1 km storm-relative helicity: 214 m²/s²
0-3 km storm-relative helicity: 233 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 KLSX 252248
TORLSX
MOC007-173-252330-
/O.NEW.KLSX.TO.W.0029.080525T2248Z-080525T2330Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
548 PM CDT SUN MAY 25 2008

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* TORNADO WARNING FOR...
  EASTERN AUDRAIN COUNTY IN CENTRAL MISSOURI
  SOUTHERN RALLS COUNTY IN NORTHEAST MISSOURI

* UNTIL 630 PM CDT

* AT 545 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM WITH STRONG ROTATION NEAR FARBER...OR ABOUT 6
  MILES WEST OF VANDALIA...MOVING EAST AT 30 MPH.

* LOCATIONS IMPACTED INCLUDE...
  VANDALIA...

WHEN A TORNADO WARNING IS ISSUED BASED ON DOPPLER RADAR...IT MEANS
THAT STRONG ROTATION HAS BEEN DETECTED IN 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. STAY AWAY FROM WINDOWS. IF DRIVING...DO
NOT SEEK SHELTER UNDER A HIGHWAY OVERPASS.

LAT...LON 3939 9170 3940 9146 3926 9143 3925 9144
      3921 9142 3921 9171
TIME...MOT...LOC 2248Z 273DEG 26KT 3929 9158

$$

GKS

1 follow-up statement

000 
WWUS53 KLSX 252320
SVSLSX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
618 PM CDT SUN MAY 25 2008

MOC007-173-252330-
/O.CON.KLSX.TO.W.0029.000000T0000Z-080525T2330Z/
AUDRAIN MO-RALLS MO-
618 PM CDT SUN MAY 25 2008

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 630 PM CDT FOR
SOUTHERN RALLS AND EASTERN AUDRAIN COUNTIES...

AT 613 PM CDT...TRAINED WEATHER SPOTTERS REPORTED A FUNNEL CLOUD AND 
ALSO ROTATION IN THE CLOUD NEAR LADDONIA...OR ABOUT 10 MILES 
SOUTHWEST OF VANDALIA...MOVING EAST AT 30 MPH.

LOCATIONS NEAR THE PATH OF THE POSSIBLE TORNADO INCLUDE....
FARBER AND VANDALIA.

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.

LAT...LON 3939 9170 3940 9146 3926 9143 3925 9144
      3921 9142 3921 9171
TIME...MOT...LOC 2318Z 063DEG 36KT 3920 9170

$$

GKS

The office that day

Everything else NWS St. Louis, MO issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 25, 6:32 AM CDT	Severe Thunderstorm Warning	LSX	Pike	43 min
May 25, 6:58 AM CDT	Severe Thunderstorm Warning	LSX	Lewis, Marion	47 min
May 25, 8:15 AM CDT	Severe Thunderstorm Warning	LSX	Callaway, Cole, Osage	45 min
May 25, 11:49 AM CDT	Severe Thunderstorm Warning	LSX	Saint Charles	41 min
May 25, 12:19 PM CDT	Severe Thunderstorm Warning	LSX	Saint Louis	41 min
May 25, 12:30 PM CDT	Severe Thunderstorm Warning	LSX	Saint Louis, City of Saint Louis	60 min
May 25, 2:37 PM CDT	Severe Thunderstorm Warning	LSX	Jefferson	53 min
May 25, 3:18 PM CDT	Severe Thunderstorm Warning	LSX	Jefferson	42 min
May 25, 3:57 PM CDT	Flash Flood Watch	LSX	Audrain, Boone, Callaway, Cole, Crawford, Franklin and 23 more	71 hr
May 25, 4:16 PM CDT	Severe Thunderstorm Warning	LSX	Audrain, Boone, Monroe	59 min
May 25, 5:03 PM CDT	Flash Flood Warning	LSX	Audrain, Boone, Monroe	4 hr
May 25, 5:13 PM CDT	Severe Thunderstorm Warning	LSX	Audrain, Monroe, Ralls	62 min
May 25, 6:09 PM CDT	Severe Thunderstorm Warning	LSX	Pike	51 min
May 25, 6:26 PM CDT	Severe Thunderstorm Warning	LSX	Lincoln, Pike	64 min
May 25, 6:39 PM CDT	Severe Thunderstorm Warning	LSX	Monroe, Ralls	51 min
May 25, 6:43 PM CDT	Severe Thunderstorm Warning	LSX	Lincoln, Saint Charles, Warren	47 min

Nearby

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