Alert archive / Missouri / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 25, NWS St. Louis, MO

April 27, 2016Monroe County, Shelby County, Missouri

NWS St. Louis, MO issued this severe thunderstorm warning at Apr 27, 2016, 6:58 PM CDT for Monroe County, Shelby County, Missouri. It was in force for 32 min. 4 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 27, 2016, 6:58 PM CDT (23:58 UTC)
Expired: Apr 27, 2016, 7:30 PM CDT
In force: 32 min
Issued by: NWS St. Louis, MO
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Monroe County, MO, Shelby County, MO

The radar

The St Louis radar (KLSX), 162 km from the middle of the area, began a volume at 00:01 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

Time	Report	Where	Remark
Apr 27, 7:02 PM CDT	HAIL 1.75	6 Wnw Shelbina, MO	QUARTER TO GOLFBALL SIZE JUST SOUTH OF LENTNER.
Apr 27, 7:07 PM CDT	HAIL 0.25	Madison, MO	LASTED FOR 5 MINUTES.
Apr 27, 7:07 PM CDT	HAIL 1	3 W Madison, MO
Apr 27, 7:12 PM CDT	HAIL 1	2 N Madison, MO	ON HIGHWAY 151.

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.

Issued	Product	Office	Lasted
Apr 27, 2:33 PM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Davenport, (KDVN), launched 12:00Z, 12.0 hours before the alert went out and 271 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 649 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: 227 m²/s²
0-3 km storm-relative helicity: 281 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

686 
WUUS53 KLSX 272358
SVRLSX
MOC137-205-280030-
/O.NEW.KLSX.SV.W.0025.160427T2358Z-160428T0030Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
658 PM CDT WED APR 27 2016

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WESTERN MONROE COUNTY IN NORTHEASTERN MISSOURI...
  SOUTHERN SHELBY COUNTY IN NORTHEASTERN MISSOURI...

* UNTIL 730 PM CDT

* AT 658 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR MADISON...
  MOVING NORTHEAST AT 35 MPH.

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

  SOURCE...RADAR INDICATED. 

  IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE 
           TO ROOFS...SIDING...AND TREES. 

* LOCATIONS IMPACTED INCLUDE...
  SHELBINA...CLARENCE...MADISON...MAUD...GRANVILLE...WOODLAWN...HOLLIDAY
  AND DUNCANS BRIDGE.

THIS ALSO INCLUDES  UNION COVERED BRIDGE HISTORIC SITE.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. TORNADOES CAN
DEVELOP QUICKLY FROM SEVERE THUNDERSTORMS. ALTHOUGH A TORNADO IS NOT
IMMEDIATELY LIKELY...IF ONE IS SPOTTED...ACT QUICKLY AND MOVE TO A
PLACE OF SAFETY INSIDE A STURDY STRUCTURE SUCH AS A BASEMENT OR SMALL
INTERIOR ROOM.

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

&&

A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM CDT FOR NORTHEASTERN
MISSOURI.

LAT...LON 3961 9230 3968 9230 3986 9220 3964 9183
      3934 9221 3935 9222 3935 9231
TIME...MOT...LOC 2358Z 211DEG 30KT 3943 9230 

HAIL...1.00IN
WIND...60MPH
 
$$

GOSSELIN

2 follow-up statements

947 
WWUS53 KLSX 280018
SVSLSX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
718 PM CDT WED APR 27 2016

MOC137-205-280030-
/O.CON.KLSX.SV.W.0025.000000T0000Z-160428T0030Z/
MONROE MO-SHELBY MO-
718 PM CDT WED APR 27 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 730 PM CDT
FOR WESTERN MONROE AND SOUTHERN SHELBY COUNTIES...

AT 718 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR WOODLAWN...
MOVING NORTHEAST AT 30 MPH.

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

SOURCE...RADAR INDICATED. 

IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE TO 
         ROOFS...SIDING...AND TREES. 

LOCATIONS IMPACTED INCLUDE...
SHELBINA...MADISON...GRANVILLE...MAUD...WOODLAWN...HOLLIDAY AND DUNCANS
BRIDGE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. TORNADOES CAN
DEVELOP QUICKLY FROM SEVERE THUNDERSTORMS. ALTHOUGH A TORNADO IS NOT
IMMEDIATELY LIKELY...IF ONE IS SPOTTED ACT QUICKLY AND MOVE TO A PLACE
OF SAFETY INSIDE A STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL
INTERIOR ROOM.

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 OFFICE IN
ST LOUIS.

&&

A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM CDT FOR NORTHEASTERN
MISSOURI.

LAT...LON 3961 9230 3967 9222 3972 9196 3970 9192
      3966 9187 3939 9219 3938 9222 3939 9231
TIME...MOT...LOC 0018Z 216DEG 29KT 3954 9219 

HAIL...1.00IN
WIND...60MPH
 
$$

GOSSELIN

666 
WWUS53 KLSX 280031
SVSLSX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
731 PM CDT WED APR 27 2016

MOC137-205-280041-
/O.EXP.KLSX.SV.W.0025.000000T0000Z-160428T0030Z/
MONROE MO-SHELBY MO-
731 PM CDT WED APR 27 2016

...THE SEVERE THUNDERSTORM WARNING FOR WESTERN MONROE AND SOUTHERN
SHELBY COUNTIES HAS EXPIRED...
                
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY.
THEREFORE THE WARNING HAS BEEN ALLOWED TO EXPIRE.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM CDT FOR NORTHEASTERN
MISSOURI.

LAT...LON 3961 9230 3967 9222 3972 9196 3970 9192
      3966 9187 3939 9219 3938 9222 3939 9231
TIME...MOT...LOC 0030Z 211DEG 30KT 3954 9219 

$$

GOSSELIN

Nearby

Severe Thunderstorm Warnings in Missouri, 2016 Every 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.