Alert archive / Missouri / Tornado Warnings in 2015

Tornado Warning 22, NWS St. Louis, MO

June 22, 2015Lewis County, Missouri

NWS St. Louis, MO issued this tornado warning at Jun 22, 2015, 7:49 PM CDT for Lewis County, Missouri. It was in force for 41 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
Jun 22, 2015, 7:49 PM CDT (00:49 UTC)
Expired
Jun 22, 2015, 8:30 PM CDT
In force
41 min
Issued by
NWS St. Louis, MO
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.0 in

County Lewis County, MO

The radar

The St Louis radar (KLSX), 180 km from the middle of the area, began a volume at 00:52 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
Jun 22, 8:13 PM CDTTSTM WND DMG3 N Monticello, MOROOF PARTIALLY BLOWN OFF METAL BARN. DEBRIS LAYING IN HIGHWAY.

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

The nearest sounding before it

Davenport, (KDVN), launched 00:00Z, 0.8 hours before the alert went out and 185 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, Davenport, at 00:00Z on 2015-06-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1958 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, Davenport, at 00:00Z on 2015-06-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 401 square meters per square second.19395878Sfc1 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
1958 J/kg
Mixed-layer CIN
-19 J/kg
Mixed-layer LCL
925 m above ground
0-6 km bulk shear
61 kt
0-1 km storm-relative helicity
401 m²/s²
0-3 km storm-relative helicity
441 m²/s²
Significant tornado parameter
5.7
Supercell composite
17.5

Open this sounding in Storm Lab

The text

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

986 
WFUS53 KLSX 230049
TORLSX
MOC111-230130-
/O.NEW.KLSX.TO.W.0022.150623T0049Z-150623T0130Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
749 PM CDT MON JUN 22 2015

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHEASTERN LEWIS COUNTY IN NORTHEAST MISSOURI...

* UNTIL 830 PM CDT

* AT 745 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED NEAR WYACONDA...AND MOVING SOUTHEAST AT 40 MPH.

  HAZARD...TORNADO.

  SOURCE...LAW ENFORCEMENT REPORTED FUNNEL CLOUD.

  IMPACT...FLYING DEBRIS WILL BE DANGEROUS TO THOSE CAUGHT WITHOUT
           SHELTER. MOBILE HOMES WILL BE DAMAGED OR DESTROYED. DAMAGE
           TO ROOFS...WINDOWS AND VEHICLES WILL OCCUR. TREE DAMAGE IS
           LIKELY.

* THIS DANGEROUS STORM WILL BE NEAR...
  CANTON AROUND 830 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 4025 9152 4024 9150 4011 9151 4007 9149
      3998 9149 4026 9187
TIME...MOT...LOC 0047Z 311DEG 35KT 4043 9192

TORNADO...RADAR INDICATED
HAIL...0.00IN

$$

BROWNING
1 follow-up statement
749 
WWUS53 KLSX 230124
SVSLSX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
824 PM CDT MON JUN 22 2015

MOC111-230135-
/O.EXP.KLSX.TO.W.0022.000000T0000Z-150623T0130Z/
LEWIS MO-
824 PM CDT MON JUN 22 2015

...THE TORNADO WARNING FOR NORTHEASTERN LEWIS COUNTY WILL EXPIRE AT
830 PM CDT...

THE TORNADO THREAT HAS DIMINISHED...THEREFORE THE TORNADO WARNING HAS
EXPIRED. HOWEVER...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT 
FOR THE AREA...AND GUSTY WINDS ARE STILL POSSIBLE WITH THIS 
THUNDERSTORM.

IN ADDITION...STRONG THUNDERSTORMS MAY REDEVELOP...AND A SEVERE 
THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL MIDNIGHT.

LAT...LON 4025 9152 4024 9150 4011 9151 4007 9149
      3998 9149 4026 9187
TIME...MOT...LOC 0125Z 311DEG 35KT 4019 9155

$$

KANOFSKY

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 22, 8:12 PM CDTSevere Thunderstorm WarningLSXLewis, Marion63 min
Jun 22, 10:53 PM CDTRiver Flood WarningLSXLewis8 days
Jun 22, 11:03 PM CDTRiver Flood WarningLSXMarion63 hr
Jun 23, 9:49 AM CDTRiver Flood WarningLSXMarion28 hr
Jun 23, 3:09 PM CDTFlash Flood WatchLSXAudrain, Ralls9 hr

Nearby

Tornado Warnings in Missouri, 2015Every tornado warning in 2015Tornadoes in 2015

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.