Alert archive / Missouri / Tornado Warnings in 2018

Tornado Warning 2, NWS Springfield, MO

January 21, 2018Christian County, Douglas County, Webster County, Missouri

NWS Springfield, MO issued this tornado warning at Jan 21, 2018, 9:32 PM CST for Christian County, Douglas County, Webster County, Missouri. It was in force for 28 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: Jan 21, 2018, 9:32 PM CST (03:32 UTC)
Expired: Jan 21, 2018, 10:00 PM CST
In force: 28 min
Issued by: NWS Springfield, MO
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.0 in

Counties Christian County, MO, Douglas County, MO, Webster County, MO

The radar

The Springfield radar (KSGF), 58 km from the middle of the area, began a volume at 03:32 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, 3.5 hours before the alert went out and 90 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: 87 J/kg
Mixed-layer CIN: -13 J/kg
Mixed-layer LCL: 971 m above ground
0-6 km bulk shear: 55 kt
0-1 km storm-relative helicity: 232 m²/s²
0-3 km storm-relative helicity: 257 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

As transmitted.

010 
WFUS53 KSGF 220332
TORSGF
MOC043-067-225-220400-
/O.NEW.KSGF.TO.W.0002.180122T0332Z-180122T0400Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Springfield MO
932 PM CST SUN JAN 21 2018

The National Weather Service in Springfield has issued a

* Tornado Warning for...
  Southeastern Webster County in southwestern Missouri...
  Northwestern Douglas County in southwestern Missouri...
  East central Christian County in southwestern Missouri...

* Until 1000 PM CST
    
* At 932 PM CST, a severe thunderstorm capable of producing a tornado
  was located 8 miles east of Sparta, or 14 miles west of Ava, moving
  northeast at 50 mph.

  HAZARD...Tornado. 

  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...
  Seymour...                        Elkhead...
  Keltner...                        Dogwood...

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.

Heavy rainfall may hide this tornado. Do not wait to see or hear the
tornado. TAKE COVER NOW!

&&

LAT...LON 3694 9300 3719 9283 3710 9268 3707 9268
      3707 9263 3706 9262 3688 9295
TIME...MOT...LOC 0332Z 225DEG 44KT 3696 9293 

TORNADO...RADAR INDICATED
HAIL...0.00IN

$$

Griffin

3 follow-up statements

774 
WWUS53 KSGF 220342
SVSSGF

Severe Weather Statement
National Weather Service Springfield MO
942 PM CST SUN JAN 21 2018

MOC043-220351-
/O.CAN.KSGF.TO.W.0002.000000T0000Z-180122T0400Z/
Christian MO-
942 PM CST SUN JAN 21 2018

...THE TORNADO WARNING FOR EAST CENTRAL CHRISTIAN COUNTY IS
CANCELLED...
    
The tornadic thunderstorm which prompted the warning has moved out 
of the warned area.  Therefore, the warning has been cancelled.

LAT...LON 3719 9283 3710 9268 3707 9268 3707 9263
      3706 9262 3692 9291 3709 9290
TIME...MOT...LOC 0341Z 222DEG 42KT 3702 9285 

$$

MOC067-225-220400-
/O.CON.KSGF.TO.W.0002.000000T0000Z-180122T0400Z/
Webster MO-Douglas MO-
942 PM CST SUN JAN 21 2018

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1000 PM CST FOR
SOUTHEASTERN WEBSTER AND NORTHWESTERN DOUGLAS COUNTIES...
    
At 941 PM CST, a severe thunderstorm capable of producing a tornado
was located 9 miles southwest of Seymour, or 11 miles northwest of
Ava, moving northeast at 50 mph.

HAZARD...Tornado. 

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...
Seymour...                        Dogwood...

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.

Heavy rainfall may hide this tornado. Do not wait to see or hear the
tornado. TAKE COVER NOW!

&&

LAT...LON 3719 9283 3710 9268 3707 9268 3707 9263
      3706 9262 3692 9291 3709 9290
TIME...MOT...LOC 0341Z 222DEG 42KT 3702 9285 

TORNADO...RADAR INDICATED
HAIL...0.00IN

$$

Griffin

604 
WWUS53 KSGF 220349
SVSSGF

Severe Weather Statement
National Weather Service Springfield MO
949 PM CST SUN JAN 21 2018

MOC067-225-220400-
/O.CON.KSGF.TO.W.0002.000000T0000Z-180122T0400Z/
Webster MO-Douglas MO-
949 PM CST SUN JAN 21 2018

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1000 PM CST FOR
SOUTHEASTERN WEBSTER AND NORTHWESTERN DOUGLAS COUNTIES...
    
At 949 PM CST, a severe thunderstorm capable of producing a tornado
was located near Seymour, or 11 miles northwest of Ava, moving
northeast at 50 mph.

HAZARD...Tornado. 

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...
Seymour...                        Dogwood...

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.

Heavy rainfall may hide this tornado. Do not wait to see or hear the
tornado. TAKE COVER NOW!

&&

LAT...LON 3719 9283 3710 9268 3707 9268 3707 9263
      3706 9262 3698 9278 3709 9290
TIME...MOT...LOC 0349Z 224DEG 42KT 3709 9277 

TORNADO...RADAR INDICATED
HAIL...0.00IN

$$

Griffin

564 
WWUS53 KSGF 220358
SVSSGF

Severe Weather Statement
National Weather Service Springfield MO
958 PM CST SUN JAN 21 2018

MOC067-225-220408-
/O.EXP.KSGF.TO.W.0002.000000T0000Z-180122T0400Z/
Webster MO-Douglas MO-
958 PM CST SUN JAN 21 2018

...THE TORNADO WARNING FOR SOUTHEASTERN WEBSTER AND NORTHWESTERN
DOUGLAS COUNTIES WILL EXPIRE AT 1000 PM CST...
    
The tornado threat has diminished and the Tornado Warning has been 
cancelled. However, damaging winds remain likely and a Severe 
Thunderstorm Warning remains in effect for the area.

To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Springfield.

LAT...LON 3719 9283 3710 9268 3707 9268 3707 9263
      3706 9262 3698 9278 3709 9290
TIME...MOT...LOC 0358Z 225DEG 44KT 3717 9268 

$$

Griffin

The office that day

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

Issued	Product	Office	Counties	Lasted
Jan 21, 6:06 PM CST	Special Weather Statement	SGF	Lawrence	39 min
Jan 21, 8:00 PM CST	Special Weather Statement	SGF	Lawrence	30 min
Jan 21, 8:03 PM CST	Tornado Warning	SGF	Lawrence	27 min
Jan 21, 8:37 PM CST	Severe Thunderstorm Warning	SGF	Barry, Lawrence	38 min
Jan 21, 9:10 PM CST	Severe Thunderstorm Warning	SGF	Camden, Miller, Morgan	38 min
Jan 21, 9:27 PM CST	Severe Thunderstorm Warning	SGF	Christian, Douglas, Ozark, Taney, Webster	37 min
Jan 21, 10:10 PM CST	Tornado Warning	SGF	Wright	20 min
Jan 21, 11:25 PM CST	Severe Thunderstorm Warning	SGF	Ozark	55 min
Jan 21, 11:47 PM CST	Severe Thunderstorm Warning	SGF	Douglas, Howell	43 min
Jan 22, 12:12 AM CST	Special Weather Statement	SGF	Texas	48 min
Jan 22, 12:59 AM CST	Special Weather Statement	SGF	Howell	31 min
Jan 22, 1:06 AM CST	Severe Thunderstorm Warning	SGF	Howell, Shannon, Texas	54 min
Jan 22, 1:40 AM CST	Severe Thunderstorm Warning	SGF	Oregon, Shannon	54 min

Nearby

Tornado Warnings in Missouri, 2018 Every tornado warning in 2018 Tornadoes in 2018

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.