Alert archive / Missouri / Tornado Warnings in 2015

Tornado Warning 6, NWS St. Louis, MO

April 8, 2015Sainte Genevieve County, Saint Francois County, Missouri

NWS St. Louis, MO issued this tornado warning at Apr 8, 2015, 3:59 PM CDT for Sainte Genevieve County, Saint Francois County, Missouri. It was in force for 31 min. 13 reports 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
Apr 8, 2015, 3:59 PM CDT (20:59 UTC)
Expired
Apr 8, 2015, 4:30 PM CDT
In force
31 min
Issued by
NWS St. Louis, MO
Area
Storm-based polygon
Tornado
Radar indicated
Hail
1.75 in

Counties Saint Francois County, MO, Sainte Genevieve County, MO

The radar

The St Louis radar (KLSX), 95 km from the middle of the area, began a volume at 21:02 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
Apr 8, 4:00 PM CDTHAIL 1.5Desloge, MO
Apr 8, 4:00 PM CDTHAIL 1.75Bonne Terre, MO
Apr 8, 4:02 PM CDTFUNNEL CLOUDPark Hills, MOOBSERVED WALL CLOUD FROM SOUTH OF PARK HILLS LOOKING NORTH. THERE WAS A BRIEF VIEWING OF A FUNNEL CLOUD.
Apr 8, 4:06 PM CDTFUNNEL CLOUDLeadington, MOSMALL FUNNEL OBSERVED JUST NORTH OF LEADINGTON.
Apr 8, 4:09 PM CDTHAIL 0.88Park Hills, MO
Apr 8, 4:09 PM CDTHAIL 1.75Park Hills, MOMOSTLY NICKEL SIZED HAIL. THERE WAS ONE STONE THE SIZE OF A GOLF BALL.
Apr 8, 4:11 PM CDTHAIL 1.75Desloge, MOREPORT RELAYED FROM WFO PAH
Apr 8, 4:21 PM CDTHAIL 0.252 N Leadington, MO
Apr 8, 4:22 PM CDTHAIL 0.88Desloge, MOPEA TO NICKEL SIZE HAIL WITH WINDS AS HIGH AS 45 MPH ESTIMATED.
Apr 8, 4:25 PM CDTHAIL 1Leadington, MO
Apr 8, 4:26 PM CDTHAIL 1.75Leadington, MO
Apr 8, 4:36 PM CDTHAIL 2.75Farmington, MONW SIDE OF FARMINGTON.
Apr 8, 4:36 PM CDTHAIL 3Farmington, MONW SIDE OF FARMINGTON.

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
Apr 8, 1:05 PM CDTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 9.0 hours before the alert went out and 301 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, Lincoln, IL at 12:00Z on 2015-04-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 195 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, Lincoln, IL at 12:00Z on 2015-04-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 66 square meters per square second.193958Sfc1 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
195 J/kg
Mixed-layer CIN
-238 J/kg
Mixed-layer LCL
839 m above ground
0-6 km bulk shear
56 kt
0-1 km storm-relative helicity
66 m²/s²
0-3 km storm-relative helicity
142 m²/s²
Significant tornado parameter
0.0
Supercell composite
7.7

Open this sounding in Storm Lab

The text

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

431 
WFUS53 KLSX 082059
TORLSX
MOC186-187-082130-
/O.NEW.KLSX.TO.W.0006.150408T2059Z-150408T2130Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
359 PM CDT WED APR 8 2015

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHERN STE. GENEVIEVE COUNTY IN SOUTHEAST MISSOURI...
  ST. FRANCOIS COUNTY IN SOUTHEAST MISSOURI...

* UNTIL 430 PM CDT

* AT 357 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED NEAR PARK HILLS...AND MOVING EAST AT 35 MPH.

  HAZARD...TORNADO AND GOLF BALL SIZE HAIL.

  SOURCE...RADAR INDICATED ROTATION.

  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...
  FARMINGTON AROUND 410 PM CDT.
  COFFMAN AROUND 430 PM CDT.

OTHER LOCATIONS IN THE WARNING INCLUDE DOE RUN...LEADINGTON AND
LIBERTYVILLE.

THIS WARNING INCLUDES HAWN STATE PARK...MISSOURI MINES HISTORIC
SITE...ST. FRANCOIS STATE PARK AND ST. JOE STATE PARK.

THIS WARNING ALSO INCLUDES...
INTERSTATE 55 IN MISSOURI NEAR EXIT 150.

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 3764 9017 3775 9064 3801 9064 3801 9062
      3801 9063 3800 9058 3801 9058 3794 9006
      3764 9014
TIME...MOT...LOC 2059Z 284DEG 29KT 3783 9053

TORNADO...RADAR INDICATED
HAIL...1.75IN

$$

TRUETT
1 follow-up statement
298 
WWUS53 KLSX 082117
SVSLSX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
417 PM CDT WED APR 8 2015

MOC186-187-082130-
/O.CON.KLSX.TO.W.0006.000000T0000Z-150408T2130Z/
STE. GENEVIEVE MO-ST. FRANCOIS MO-
417 PM CDT WED APR 8 2015

...A TORNADO WARNING REMAINS IN EFFECT FOR ST. FRANCOIS AND SOUTHERN
STE. GENEVIEVE COUNTIES UNTIL 430 PM CDT...

AT 414 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 
WAS LOCATED NEAR DESLOGE...AND MOVING EAST AT 25 MPH.  

HAZARD...TORNADO AND GOLF BALL SIZE HAIL.

SOURCE...RADAR INDICATED ROTATION.

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 AFFECT MAINLY RURAL AREAS OF SOUTHERN STE.
GENEVIEVE AND ST. FRANCOIS COUNTIES.

THIS WARNING INCLUDES HAWN STATE PARK...MISSOURI MINES HISTORIC
SITE...ST. FRANCOIS STATE PARK AND ST. JOE STATE PARK.

THIS WARNING ALSO INCLUDES...
INTERSTATE 55 IN MISSOURI NEAR EXIT 150.

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 3764 9018 3779 9062 3800 9053 3794 9006
      3764 9014
TIME...MOT...LOC 2117Z 275DEG 21KT 3788 9044

TORNADO...RADAR INDICATED
HAIL...1.75IN

$$

TRUETT

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 8, 9:23 AM CDTRiver Flood WarningLSXJefferson4 days
Apr 8, 11:33 AM CDTSevere Thunderstorm WarningLSXCole, Osage42 min
Apr 8, 12:36 PM CDTSevere Thunderstorm WarningLSXCallaway, Cole, Osage39 min
Apr 8, 12:46 PM CDTSevere Thunderstorm WarningLSXBoone, Callaway44 min
Apr 8, 1:07 PM CDTSevere Thunderstorm WarningLSXSaint Charles38 min
Apr 8, 1:11 PM CDTSevere Thunderstorm WarningLSXFranklin, Gasconade, Montgomery, Osage, Warren34 min
Apr 8, 1:33 PM CDTSevere Thunderstorm WarningLSXFranklin, Gasconade27 min
Apr 8, 1:43 PM CDTSevere Thunderstorm WarningLSXCrawford, Franklin, Gasconade, Warren, Washington47 min
Apr 8, 2:23 PM CDTSevere Thunderstorm WarningLSXCrawford, Franklin, Gasconade52 min
Apr 8, 2:26 PM CDTSevere Thunderstorm WarningLSXCrawford, Franklin, Jefferson, Washington49 min
Apr 8, 3:05 PM CDTSevere Thunderstorm WarningLSXCrawford, Franklin, Gasconade, Iron, Jefferson, Washington55 min
Apr 8, 3:07 PM CDTTornado WarningLSXCrawford, Washington23 min
Apr 8, 3:20 PM CDTTornado WarningLSXJefferson, Saint Francois, Washington25 min
Apr 8, 3:24 PM CDTFlash Flood WatchLSXBoone, Callaway, Cole, Crawford, Franklin, Gasconade and 11 more31 hr
Apr 8, 3:40 PM CDTTornado WarningLSXJefferson, Sainte Genevieve, Saint Francois, Washington35 min
Apr 8, 4:20 PM CDTAreal Flood AdvisoryLSXWashington4 hr
Apr 8, 4:26 PM CDTTornado WarningLSXSainte Genevieve, Saint Francois34 min
Apr 8, 4:53 PM CDTTornado WarningLSXSainte Genevieve, Saint Francois37 min
Apr 8, 4:57 PM CDTFlash Flood WarningLSXSainte Genevieve, Saint Francois, Washington4 hr
Apr 8, 5:05 PM CDTTornado WarningLSXMadison, Sainte Genevieve, Saint Francois25 min
Apr 8, 5:25 PM CDTSevere Thunderstorm WarningLSXSainte Genevieve, Saint Francois, Washington22 min
Apr 8, 5:28 PM CDTSevere Thunderstorm WarningLSXMadison, Sainte Genevieve, Saint Francois47 min
Apr 8, 5:50 PM CDTFlash Flood WarningLSXSainte Genevieve, Saint Francois3 hr
Apr 8, 6:14 PM CDTSevere Thunderstorm WarningLSXMadison, Sainte Genevieve, Saint Francois46 min
Apr 8, 6:27 PM CDTSevere Thunderstorm WarningLSXAudrain, Boone, Callaway, Moniteau, Monroe33 min
Apr 8, 6:56 PM CDTSevere Thunderstorm WarningLSXAudrain, Boone, Monroe, Shelby49 min

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.