Alert archive / Missouri / Tornado Warnings in 2017

Tornado Warning 22, NWS St. Louis, MO

May 27, 2017Reynolds County, Missouri

NWS St. Louis, MO issued this tornado warning at May 27, 2017, 2:27 PM CDT for Reynolds County, Missouri. It was in force for 48 min. 2 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: May 27, 2017, 2:27 PM CDT (19:27 UTC)
Expired: May 27, 2017, 3:15 PM CDT
In force: 48 min
Issued by: NWS St. Louis, MO
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 1.5 in

County Reynolds County, MO

The radar

The St Louis radar (KLSX), 148 km from the middle of the area, began a volume at 19:29 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
May 27, 2:56 PM CDT	HAIL 2	2 N Centerville, MO
May 27, 3:01 PM CDT	HAIL 1	Centerville, MO

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
May 27, 12:13 PM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 12:00Z, 7.5 hours before the alert went out and 246 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: 3187 J/kg
Mixed-layer CIN: -48 J/kg
Mixed-layer LCL: 766 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: 127 m²/s²
0-3 km storm-relative helicity: 138 m²/s²
Significant tornado parameter: 1.8
Supercell composite: 9.6

Open this sounding in Storm Lab

The text

As transmitted.

966 
WFUS53 KLSX 271927
TORLSX
MOC179-272015-
/O.NEW.KLSX.TO.W.0022.170527T1927Z-170527T2015Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service St Louis MO
227 PM CDT SAT MAY 27 2017

The National Weather Service in St Louis has issued a

* Tornado Warning for...
  Northern Reynolds County in southeastern Missouri...

* Until 315 PM CDT.

* At 227 PM CDT, a severe thunderstorm capable of producing a tornado
  was located near Bunker, moving southeast at 20 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...
  Reynolds around 240 PM CDT. 

Other locations impacted by this tornadic thunderstorm include
Corridon, Redford and Centerville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 3737 9118 3741 9118 3742 9121 3754 9121
      3749 9085 3726 9089
TIME...MOT...LOC 1927Z 293DEG 19KT 3746 9113 

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

$$

Tilly

3 follow-up statements

789 
WWUS53 KLSX 271947
SVSLSX

Severe Weather Statement
National Weather Service St Louis MO
247 PM CDT SAT MAY 27 2017

MOC179-272015-
/O.CON.KLSX.TO.W.0022.000000T0000Z-170527T2015Z/
Reynolds MO-
247 PM CDT SAT MAY 27 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 315 PM CDT FOR
NORTHEASTERN REYNOLDS COUNTY...
    
At 247 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Reynolds, moving east at 30 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 tornadic thunderstorm will remain over mainly rural areas of
northeastern Reynolds County, including the following locations:
Redford and Centerville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 3743 9114 3752 9110 3749 9085 3726 9089
TIME...MOT...LOC 1947Z 284DEG 27KT 3743 9099 

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

$$

Tilly

281 
WWUS53 KLSX 272001
SVSLSX

Severe Weather Statement
National Weather Service St Louis MO
301 PM CDT SAT MAY 27 2017

MOC179-272015-
/O.CON.KLSX.TO.W.0022.000000T0000Z-170527T2015Z/
Reynolds MO-
301 PM CDT SAT MAY 27 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 315 PM CDT FOR
NORTHEASTERN REYNOLDS COUNTY...
    
At 301 PM CDT, a severe thunderstorm capable of producing a tornado
was located 7 miles east of Reynolds, moving east at 20 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. 

Locations impacted include...
Centerville and Redford. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 3741 9105 3751 9100 3749 9085 3729 9088
TIME...MOT...LOC 2001Z 291DEG 16KT 3742 9093 

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

$$

Tilly

268 
WWUS53 KLSX 272013
SVSLSX

Severe Weather Statement
National Weather Service St Louis MO
313 PM CDT SAT MAY 27 2017

MOC179-272023-
/O.EXP.KLSX.TO.W.0022.000000T0000Z-170527T2015Z/
Reynolds MO-
313 PM CDT SAT MAY 27 2017

...THE TORNADO WARNING FOR NORTHEASTERN REYNOLDS COUNTY WILL EXPIRE
AT 315 PM CDT...
    
The tornado threat has diminished and the Tornado Warning has been 
cancelled. However, large hail remains likely and a Severe 
Thunderstorm Warning remains in effect for the area.

A tornado watch remains in effect until 700 PM CDT for southeastern
Missouri.

LAT...LON 3741 9105 3751 9100 3749 9085 3729 9088
TIME...MOT...LOC 2013Z 293DEG 19KT 3740 9087 

$$

Tilly

The office that day

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

Issued	Product	Office	Counties	Lasted
May 27, 11:37 AM CDT	Special Weather Statement	LSX	Gasconade	38 min
May 27, 11:51 AM CDT	Severe Thunderstorm Warning	LSX	Crawford, Franklin, Gasconade, Osage	39 min
May 27, 12:31 PM CDT	Severe Thunderstorm Warning	LSX	Crawford, Franklin, Gasconade, Washington	44 min
May 27, 12:55 PM CDT	Tornado Warning	LSX	Crawford	11 min
May 27, 1:14 PM CDT	Severe Thunderstorm Warning	LSX	Callaway, Cole, Osage	46 min
May 27, 1:21 PM CDT	Tornado Warning	LSX	Cole, Osage	39 min
May 27, 1:33 PM CDT	Special Weather Statement	LSX	Sainte Genevieve	42 min
May 27, 1:39 PM CDT	Severe Thunderstorm Warning	LSX	Boone	37 min
May 27, 1:44 PM CDT	Severe Thunderstorm Warning	LSX	Iron, Reynolds	61 min
May 27, 1:48 PM CDT	Severe Thunderstorm Warning	LSX	Cole, Osage	42 min
May 27, 1:52 PM CDT	Tornado Warning	LSX	Reynolds	38 min
May 27, 1:56 PM CDT	Severe Thunderstorm Warning	LSX	Franklin, Saint Charles, Saint Louis, City of Saint Louis	23 min
May 27, 1:58 PM CDT	Severe Thunderstorm Warning	LSX	Sainte Genevieve	51 min
May 27, 2:24 PM CDT	Severe Thunderstorm Warning	LSX	Boone, Cole, Moniteau	51 min
May 27, 2:58 PM CDT	Severe Thunderstorm Warning	LSX	Boone, Callaway, Cole, Osage	47 min
May 27, 3:10 PM CDT	Severe Thunderstorm Warning	LSX	Iron, Reynolds	54 min
May 27, 3:35 PM CDT	Severe Thunderstorm Warning	LSX	Callaway, Franklin, Gasconade, Montgomery, Osage, Warren	55 min
May 27, 3:37 PM CDT	Severe Thunderstorm Warning	LSX	Madison	53 min
May 27, 4:06 PM CDT	Tornado Warning	LSX	Crawford, Iron, Reynolds, Washington	54 min
May 27, 4:12 PM CDT	Severe Thunderstorm Warning	LSX	Franklin, Saint Charles, Saint Louis, Warren	34 min
May 27, 4:19 PM CDT	Severe Thunderstorm Warning	LSX	Iron, Reynolds	56 min
May 27, 4:45 PM CDT	Severe Thunderstorm Warning	LSX	Madison, Sainte Genevieve, Saint Francois	45 min

Nearby

Tornado Warnings in Missouri, 2017 Every tornado warning in 2017 Tornadoes in 2017

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.