Alert archive / Missouri / Tornado Warnings in 2015

Tornado Warning 7, 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, 4:26 PM CDT for Sainte Genevieve County, Saint Francois County, Missouri. It was in force for 34 min. 7 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, 4:26 PM CDT (21:26 UTC)
Expired
Apr 8, 2015, 5:00 PM CDT
In force
34 min
Issued by
NWS St. Louis, MO
Area
Storm-based polygon
Tornado
Radar indicated
Hail
1.5 in

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

The radar

The St Louis radar (KLSX), 108 km from the middle of the area, began a volume at 21:26 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, 4:26 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.
Apr 8, 4:45 PM CDTHAIL 1Weingarten, MO
Apr 8, 4:45 PM CDTHAIL 2.75Farmington, MOGOLFBALL TO BASEBALL SIZE HAIL AT KDKZ STATION IN FARMINGTON.
Apr 8, 4:52 PM CDTHAIL 25 E Farmington, MODAMAGE TO WINDOWS.
Apr 8, 5:02 PM CDTHAIL 1.753 Se Farmington, MOALONG HIGHWAY OO.

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
Apr 8, 4:07 PM CDTTornado WatchSPC4 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 9.4 hours before the alert went out and 294 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°0°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.

456 
WFUS53 KLSX 082126
TORLSX
MOC186-187-082200-
/O.NEW.KLSX.TO.W.0007.150408T2126Z-150408T2200Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
426 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 500 PM CDT

* AT 424 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED 6 MILES NORTH OF FARMINGTON...AND MOVING EAST
  AT 25 MPH.

  HAZARD...TORNADO AND PING PONG 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...
  WEINGARTEN AROUND 445 PM CDT.
  COFFMAN AROUND 455 PM CDT.

OTHER LOCATIONS IN THE WARNING INCLUDE RIVER AUX VASES AND MINNITH.

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

THIS WARNING ALSO INCLUDES...
INTERSTATE 55 IN MISSOURI FROM EXIT 141 TO EXIT 143.

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 3779 9056 3799 9047 3789 8996 3788 8994
      3786 8994 3782 8999 3767 9010 3764 9014
TIME...MOT...LOC 2126Z 287DEG 20KT 3786 9038

TORNADO...RADAR INDICATED
HAIL...1.50IN

$$

TRUETT
2 follow-up statements
504 
WWUS53 KLSX 082137
SVSLSX

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

MOC186-187-082200-
/O.CON.KLSX.TO.W.0007.000000T0000Z-150408T2200Z/
STE. GENEVIEVE MO-ST. FRANCOIS MO-
437 PM CDT WED APR 8 2015

...A TORNADO WARNING REMAINS IN EFFECT FOR ST. FRANCOIS AND SOUTHERN
STE. GENEVIEVE COUNTIES UNTIL 500 PM CDT...

AT 436 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED 6 MILES SOUTHWEST OF WEINGARTEN...AND MOVING EAST AT 25 
MPH.  IN ADDITION...BASEBALL SIZED HAIL HAS BEEN REPORTED ON THE 
NORTH-NORTHWEST SIDE OF FARMINGTON.   

HAZARD...TORNADO AND BASEBALL 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...
  WEINGARTEN AROUND 445 PM CDT.
  COFFMAN AROUND 455 PM CDT.

OTHER LOCATIONS IN THE WARNING INCLUDE RIVER AUX VASES AND MINNITH.

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

THIS WARNING ALSO INCLUDES...
INTERSTATE 55 IN MISSOURI FROM EXIT 141 TO EXIT 143.

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 3779 9056 3799 9047 3789 8996 3788 8994
      3786 8994 3782 8999 3767 9010 3764 9014
TIME...MOT...LOC 2137Z 287DEG 20KT 3784 9031

TORNADO...RADAR INDICATED
HAIL...2.75IN

$$

TRUETT
262 
WWUS53 KLSX 082148
SVSLSX

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

MOC186-187-082200-
/O.CON.KLSX.TO.W.0007.000000T0000Z-150408T2200Z/
STE. GENEVIEVE MO-ST. FRANCOIS MO-
448 PM CDT WED APR 8 2015

...A TORNADO WARNING REMAINS IN EFFECT FOR ST. FRANCOIS AND SOUTHERN
STE. GENEVIEVE COUNTIES UNTIL 500 PM CDT...

AT 444 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 
WAS LOCATED NEAR WEINGARTEN...AND MOVING EAST AT 25 MPH.  IN 
ADDITION...SOFTBALL SIZED HAIL HAS BEEN REPORTED IN THE 
FARMINGTON AREA!   

HAZARD...TORNADO AND SOFTBALL 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...
  COFFMAN AROUND 455 PM CDT.

OTHER LOCATIONS IN THE WARNING INCLUDE RIVER AUX VASES AND MINNITH.

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

THIS WARNING ALSO INCLUDES...
INTERSTATE 55 IN MISSOURI FROM EXIT 141 TO EXIT 143.

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 3779 9056 3799 9047 3789 8996 3788 8994
      3786 8994 3782 8999 3767 9010 3764 9014
TIME...MOT...LOC 2147Z 287DEG 20KT 3782 9024

TORNADO...RADAR INDICATED
HAIL...4.25IN

$$

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, 3:59 PM CDTTornado WarningLSXSainte Genevieve, Saint Francois31 min
Apr 8, 4:20 PM CDTAreal Flood AdvisoryLSXWashington4 hr
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.