Alert archive / Missouri / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 138, NWS St. Louis, MO

July 8, 2016Gasconade County, Osage County, Missouri

NWS St. Louis, MO issued this severe thunderstorm warning at Jul 8, 2016, 2:45 AM CDT for Gasconade County, Osage County, Missouri. It was in force for 21 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
Jul 8, 2016, 2:45 AM CDT (07:45 UTC)
Expired
Jul 8, 2016, 3:06 AM CDT
In force
21 min
Issued by
NWS St. Louis, MO
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Gasconade County, MO, Osage County, MO

The radar

The St Louis radar (KLSX), 91 km from the middle of the area, began a volume at 07:44 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 nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 7.8 hours before the alert went out and 252 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, Springfield, MO at 00:00Z on 2016-07-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2840 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, Springfield, MO at 00:00Z on 2016-07-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 142 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
2840 J/kg
Mixed-layer CIN
-157 J/kg
Mixed-layer LCL
1070 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
142 m²/s²
0-3 km storm-relative helicity
329 m²/s²
Significant tornado parameter
0.4
Supercell composite
10.7

Open this sounding in Storm Lab

The text

As transmitted.

209 
WUUS53 KLSX 080745
SVRLSX
MOC073-151-080830-
/O.NEW.KLSX.SV.W.0138.160708T0745Z-160708T0830Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
245 AM CDT FRI JUL 8 2016

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CENTRAL GASCONADE COUNTY IN EAST CENTRAL MISSOURI...
  SOUTHEASTERN OSAGE COUNTY IN CENTRAL MISSOURI...

* UNTIL 330 AM CDT

* AT 244 AM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR MOUNT
  STERLING...MOVING EAST AT 30 MPH.

  HAZARD...60 MPH WIND GUSTS. 

  SOURCE...RADAR INDICATED. 

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

* LOCATIONS IMPACTED INCLUDE...
  OWENSVILLE...LINN...ROSEBUD...DRAKE...MOUNT STERLING AND BAY. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3833 9185 3851 9184 3854 9138 3832 9138
TIME...MOT...LOC 0744Z 267DEG 26KT 3843 9172 

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

BYRD
1 follow-up statement
097 
WWUS53 KLSX 080806
SVSLSX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
306 AM CDT FRI JUL 8 2016

MOC073-151-080815-
/O.CAN.KLSX.SV.W.0138.000000T0000Z-160708T0830Z/
GASCONADE MO-OSAGE MO-
306 AM CDT FRI JUL 8 2016

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL GASCONADE AND
SOUTHEASTERN OSAGE COUNTIES IS CANCELLED...
        
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND HAS EXITED THE WARNED AREA. THEREFORE THE WARNING HAS
BEEN CANCELLED.  HOWEVER GUSTY WINDS AND HEAVY RAIN ARE STILL
POSSIBLE WITH THIS THUNDERSTORM.

LAT...LON 3833 9185 3851 9184 3854 9138 3832 9138
TIME...MOT...LOC 0804Z 267DEG 26KT 3844 9152 

$$

BYRD

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 7, 11:19 PM CDTAreal Flood AdvisoryLSXBoone6 hr
Jul 8, 12:35 AM CDTAreal Flood AdvisoryLSXCallaway, Cole5 hr
Jul 8, 1:36 AM CDTSpecial Weather StatementLSXMoniteau39 min
Jul 8, 4:10 AM CDTSpecial Weather StatementLSXReynolds50 min

Nearby

Severe Thunderstorm Warnings in Missouri, 2016Every severe thunderstorm warning in 2016

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.