Alert archive / Missouri / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 101, NWS St. Louis, MO

June 25, 20154 counties in Missouri

NWS St. Louis, MO issued this severe thunderstorm warning at Jun 25, 2015, 12:07 AM CDT for 4 counties in Missouri. It was in force for 38 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Jun 25, 2015, 12:07 AM CDT (05:07 UTC)
Expired
Jun 25, 2015, 12:45 AM CDT
In force
38 min
Issued by
NWS St. Louis, MO
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Knox County, MO, Lewis County, MO, Marion County, MO, Shelby County, MO

The radar

The St Louis radar (KLSX), 195 km from the middle of the area, began a volume at 05:07 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.

The watch it was issued in

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

IssuedProductOfficeLasted
Jun 24, 9:26 PM CDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Davenport, (KDVN), launched 00:00Z, 5.1 hours before the alert went out and 213 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 2015-06-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2 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 2015-06-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 146 square meters per square second.1939587897Sfc1 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
2 J/kg
Mixed-layer CIN
-609 J/kg
Mixed-layer LCL
1258 m above ground
0-6 km bulk shear
59 kt
0-1 km storm-relative helicity
146 m²/s²
0-3 km storm-relative helicity
637 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.

162 
WUUS53 KLSX 250507
SVRLSX
MOC103-111-127-205-250545-
/O.NEW.KLSX.SV.W.0101.150625T0507Z-150625T0545Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
1207 AM CDT THU JUN 25 2015

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  KNOX COUNTY IN NORTHEAST MISSOURI...
  WESTERN LEWIS COUNTY IN NORTHEAST MISSOURI...
  NORTHWESTERN MARION COUNTY IN NORTHEAST MISSOURI...
  NORTHERN SHELBY COUNTY IN NORTHEAST MISSOURI...

* UNTIL 1245 AM CDT

* AT 1204 AM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
  EXTENDING FROM 7 MILES NORTHEAST OF LA BELLE TO 7 MILES SOUTHWEST
  OF KNOX CITY TO 6 MILES SOUTHEAST OF BRASHEAR...AND MOVING
  SOUTHEAST AT 30 MPH.

  HAZARD...60 MPH WIND GUSTS AND PENNY SIZE HAIL.

  SOURCE...RADAR INDICATED.

  IMPACT...EXPECT DAMAGE TO ROOFS...SIDING AND TREES.

* LOCATIONS IMPACTED INCLUDE...
  LA BELLE...LEWISTOWN...PLEVNA...STEFFENVILLE...EWING...NOVELTY...
  NEWARK...MONTICELLO...LEONARD AND BETHEL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

TO REPORT SEVERE WEATHER CONTACT YOUR NEAREST LAW ENFORCEMENT AGENCY.
THEY WILL SEND YOUR REPORT TO THE NATIONAL WEATHER SERVICE IN ST
LOUIS.

TORRENTIAL RAINFALL IS OCCURRING WITH THESE STORMS...AND MAY LEAD TO
FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS!

&&

LAT...LON 4026 9194 4026 9181 4000 9161 3983 9180
      3985 9229 3995 9228 3996 9234 4021 9235
      4023 9215 4031 9195
TIME...MOT...LOC 0507Z 305DEG 26KT 4019 9182 4006 9207
          4009 9226

HAIL...0.75IN
WIND...60MPH

$$

TRUETT
2 follow-up statements
981 
WWUS53 KLSX 250529
SVSLSX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
1229 AM CDT THU JUN 25 2015

MOC103-111-127-205-250545-
/O.CON.KLSX.SV.W.0101.000000T0000Z-150625T0545Z/
KNOX MO-LEWIS MO-MARION MO-SHELBY MO-
1229 AM CDT THU JUN 25 2015

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHERN
SHELBY...NORTHWESTERN MARION...WESTERN LEWIS AND SOUTHERN KNOX
COUNTIES UNTIL 1245 AM CDT...

AT 1227 AM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM 7 MILES NORTHEAST OF LEWISTOWN TO STEFFENVILLE TO 7
MILES EAST OF LA PLATA...AND MOVING SOUTHEAST AT 30 MPH.

HAZARD...60 MPH WIND GUSTS.

SOURCE...RADAR INDICATED.

IMPACT...EXPECT DAMAGE TO ROOFS...SIDING AND TREES.

LOCATIONS IMPACTED INCLUDE...
PLEVNA...EWING...LEONARD AND BETHEL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

TO REPORT SEVERE WEATHER CONTACT YOUR NEAREST LAW ENFORCEMENT AGENCY.
THEY WILL SEND YOUR REPORT TO THE NATIONAL WEATHER SERVICE IN ST
LOUIS.

TORRENTIAL RAINFALL IS OCCURRING WITH THESE STORMS...AND MAY LEAD TO
FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS!

&&

LAT...LON 4018 9234 4016 9206 4022 9193 4022 9178
      4000 9161 3983 9180 3985 9229 3995 9228
      3996 9234
TIME...MOT...LOC 0530Z 305DEG 26KT 4013 9168 3996 9187
          4001 9234

HAIL...<.75IN
WIND...60MPH

$$

TRUETT
997 
WWUS53 KLSX 250549
SVSLSX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
1249 AM CDT THU JUN 25 2015

MOC103-111-127-205-250554-
/O.EXP.KLSX.SV.W.0101.000000T0000Z-150625T0545Z/
KNOX MO-LEWIS MO-MARION MO-SHELBY MO-
1249 AM CDT THU JUN 25 2015

...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN SHELBY...NORTHWESTERN
MARION...WESTERN LEWIS AND SOUTHERN KNOX COUNTIES WILL EXPIRE AT 1245
AM CDT...

THE LINE OF STORMS WHICH PROMPTED THE WARNING HAS WEAKENED BELOW
SEVERE LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR 
PROPERTY.  

THESE STORMS WILL CONTINUE TO PRODUCE 30 MPH WINDS...SMALL 
HAIL...AND TORRENTIAL RAINS AS THEY DRIFT SOUTH ACROSS SHELBY AND 
MARION COUNTIES THROUGH 130 AM.  ALSO...THESE STORMS MAY 
REINTENSIFY...AND A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT 
UNTIL 5AM.

IN ADDITION...CONCERN IS INCREASING FOR FLASH FLOODING ACROSS 
NORTHEAST MISSOURI...AS THE TORRENTIAL DOWNPOURS OCCURRING WITH 
THESE STORMS WILL BE FOLLOWED BY ADDITIONAL THUNDERSTORMS AND HEAVY 
RAIN DURING THE OVERNIGHT HOURS. 

LAT...LON 4018 9234 4016 9206 4022 9193 4022 9178
      4000 9161 3983 9180 3985 9229 3995 9228
      3996 9234
TIME...MOT...LOC 0544Z 305DEG 26KT 4007 9157 3990 9176
          3995 9223

$$

TRUETT

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 24, 11:11 PM CDTSevere Thunderstorm WarningLSXKnox, Lewis64 min
Jun 24, 11:31 PM CDTFlash Flood WatchLSXAudrain, Knox, Lewis, Lincoln, Marion, Monroe and 3 more7 hr
Jun 25, 1:09 AM CDTFlash Flood WarningLSXKnox, Lewis6 hr
Jun 25, 2:39 AM CDTFlash Flood WarningLSXMarion, Shelby7 hr
Jun 25, 3:20 AM CDTRiver Flood WarningLSXMarion52 hr
Jun 25, 4:06 AM CDTFlash Flood WatchLSXAudrain, Boone, Callaway, Cole, Franklin, Gasconade and 17 more39 hr
Jun 25, 7:03 AM CDTFlash Flood WarningLSXKnox, Lewis4 hr
Jun 25, 9:19 AM CDTRiver Flood WarningLSXMonroe62 hr
Jun 25, 9:26 AM CDTFlash Flood WarningLSXLewis, Marion, Shelby4 hr
Jun 25, 10:54 AM CDTFlash Flood WarningLSXKnox, Lewis4 hr
Jun 25, 1:28 PM CDTAreal Flood WarningLSXMarion, Shelby7 hr
Jun 25, 2:51 PM CDTAreal Flood WarningLSXKnox, Lewis6 hr
Jun 25, 3:21 PM CDTRiver Flood WarningLSXLincoln3 days
Jun 25, 5:00 PM CDTSevere Thunderstorm WarningLSXLincoln60 min
Jun 25, 5:51 PM CDTSevere Thunderstorm WarningLSXSaint Charles, Saint Louis, City of Saint Louis54 min
Jun 25, 5:56 PM CDTSevere Thunderstorm WarningLSXSaint Charles19 min
Jun 25, 6:32 PM CDTFlash Flood WarningLSXLincoln, Saint Charles14 hr
Jun 25, 6:54 PM CDTSevere Thunderstorm WarningLSXLincoln66 min

Nearby

Severe Thunderstorm Warnings in Missouri, 2015Every severe thunderstorm warning 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.