Alert archive / Missouri / Tornado Warnings in 2018

Tornado Warning 40, NWS Springfield, MO

December 1, 2018Dallas County, Greene County, Webster County, Missouri

NWS Springfield, MO issued this tornado warning at Dec 1, 2018, 1:23 AM CST for Dallas County, Greene County, Webster County, Missouri. It was in force for 18 min. 3 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: Dec 1, 2018, 1:23 AM CST (07:23 UTC)
Expired: Dec 1, 2018, 1:41 AM CST
In force: 18 min
Issued by: NWS Springfield, MO
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 1.0 in

Counties Dallas County, MO, Greene County, MO, Webster County, MO

The radar

The Springfield radar (KSGF), 43 km from the middle of the area, began a volume at 07:24 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
Dec 1, 1:24 AM CST	TSTM WND DMG	Elkland, MO	POWER LINES DOWN.
Dec 1, 1:41 AM CST	TSTM WND DMG	1 N Fair Grove, MO	FAIR GROVE POLICE DEPARTMENT UTILITY POLE WITH ATTACHED CITY INFRASTRUCTURE EQUIPMENT SNAPPED IN HALF AT 70 EAST WILLOW STREET, FAIR GROVE. POLE BLOWN DOWN TOWARDS THE NORTH.
Dec 1, 1:50 AM CST	TSTM WND DMG	4 Wnw Niangua, MO	SEMI BLOWN OFF INTERSTATE 44 AT MILE MARKER 106.

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
Nov 30, 9:47 PM CST	Tornado Watch	SPC	5 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 7.4 hours before the alert went out and 94 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: 202 J/kg
Mixed-layer CIN: -93 J/kg
Mixed-layer LCL: 687 m above ground
0-6 km bulk shear: 57 kt
0-1 km storm-relative helicity: 241 m²/s²
0-3 km storm-relative helicity: 266 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.6

Open this sounding in Storm Lab

The text

As transmitted.

664 
WFUS53 KSGF 010723
TORSGF
MOC059-077-225-010800-
/O.NEW.KSGF.TO.W.0040.181201T0723Z-181201T0800Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Springfield MO
123 AM CST SAT DEC 1 2018

The National Weather Service in Springfield has issued a

* Tornado Warning for...
  Northwestern Webster County in southwestern Missouri...
  Southern Dallas County in southwestern Missouri...
  Northeastern Greene County in southwestern Missouri...

* Until 200 AM CST.
    
* At 123 AM CST, a severe thunderstorm capable of producing a tornado
  was located near Fair Grove, or 9 miles north of Strafford, moving
  northeast at 40 mph.

  HAZARD...Tornado and quarter 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...
  Fair Grove...                     Conway...
  Olive...                          Elkland...
  Foose...                          March...
  Charity...                        

This includes Interstate 44 between mile markers 102 and 111.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

Tornadoes are extremely difficult to see and confirm at night. Do not
wait to see or hear the tornado. TAKE COVER NOW!

&&

LAT...LON 3743 9318 3756 9317 3761 9285 3748 9285
      3748 9281 3740 9282 3736 9295 3735 9319
TIME...MOT...LOC 0723Z 225DEG 34KT 3741 9309 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

Hatch

2 follow-up statements

050 
WWUS53 KSGF 010731
SVSSGF

Severe Weather Statement
National Weather Service Springfield MO
131 AM CST SAT DEC 1 2018

MOC077-010741-
/O.CAN.KSGF.TO.W.0040.000000T0000Z-181201T0800Z/
Greene MO-
131 AM CST SAT DEC 1 2018

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

A Tornado Watch remains in effect until 500 AM CST for southwestern
Missouri.

LAT...LON 3747 9307 3757 9312 3761 9285 3748 9285
      3748 9281 3740 9282 3743 9293 3742 9305
TIME...MOT...LOC 0731Z 225DEG 34KT 3747 9302 

$$

MOC059-225-010800-
/O.CON.KSGF.TO.W.0040.000000T0000Z-181201T0800Z/
Webster MO-Dallas MO-
131 AM CST SAT DEC 1 2018

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 200 AM CST FOR
NORTHWESTERN WEBSTER AND SOUTHERN DALLAS COUNTIES...
    
At 131 AM CST, a severe thunderstorm capable of producing a tornado
was located 9 miles northeast of Fair Grove, or 10 miles northwest of
Marshfield, moving northeast at 40 mph.

HAZARD...Tornado and quarter 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...
Conway...                         Elkland...
March...                          Charity...

This includes Interstate 44 between mile markers 105 and 111.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

Tornadoes are extremely difficult to see and confirm at night. Do not
wait to see or hear the tornado. TAKE COVER NOW!

&&

LAT...LON 3747 9307 3757 9312 3761 9285 3748 9285
      3748 9281 3740 9282 3743 9293 3742 9305
TIME...MOT...LOC 0731Z 225DEG 34KT 3747 9302 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

Hatch

414 
WWUS53 KSGF 010741
SVSSGF

Severe Weather Statement
National Weather Service Springfield MO
141 AM CST SAT DEC 1 2018

MOC059-225-010750-
/O.CAN.KSGF.TO.W.0040.000000T0000Z-181201T0800Z/
Webster MO-Dallas MO-
141 AM CST SAT DEC 1 2018

...THE TORNADO WARNING FOR NORTHWESTERN WEBSTER AND SOUTHERN DALLAS
COUNTIES IS CANCELLED...
    
The tornadic thunderstorm which prompted the warning has weakened. 
moved out of the warned area. Therefore, the warning has been 
cancelled.

A Tornado Watch remains in effect until 500 AM CST for southwestern
Missouri.

LAT...LON 3747 9307 3757 9312 3761 9285 3748 9285
      3748 9281 3740 9282 3743 9293 3742 9305
TIME...MOT...LOC 0740Z 225DEG 34KT 3754 9294 

$$

Hatch

The office that day

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

Issued	Product	Office	Counties	Lasted
Nov 30, 7:42 PM CST	Special Weather Statement	SGF	Barton, Jasper	48 min
Nov 30, 7:53 PM CST	Special Weather Statement	SGF	Ozark	52 min
Nov 30, 8:10 PM CST	Special Weather Statement	SGF	Taney	50 min
Nov 30, 9:24 PM CST	Special Weather Statement	SGF	Webster	51 min
Nov 30, 10:42 PM CST	Special Weather Statement	SGF	Webster	33 min
Nov 30, 11:35 PM CST	Severe Thunderstorm Warning	SGF	Jasper, McDonald, Newton	40 min
Nov 30, 11:40 PM CST	Severe Thunderstorm Warning	SGF	Barton, Jasper, Vernon	50 min
Dec 1, 12:04 AM CST	Severe Thunderstorm Warning	SGF	Barry, Christian, Jasper, Lawrence, McDonald, Newton and 1 more	41 min
Dec 1, 12:25 AM CST	Severe Thunderstorm Warning	SGF	Cedar, Dade, St. Clair, Vernon	65 min
Dec 1, 12:34 AM CST	Tornado Warning	SGF	Christian, Lawrence, Stone	26 min
Dec 1, 12:36 AM CST	Severe Thunderstorm Warning	SGF	Christian, Greene, Taney	39 min
Dec 1, 12:47 AM CST	Tornado Warning	SGF	Christian, Greene	28 min
Dec 1, 12:56 AM CST	Severe Thunderstorm Warning	SGF	Douglas, Ozark	64 min
Dec 1, 12:59 AM CST	Severe Thunderstorm Warning	SGF	Hickory, Polk	61 min
Dec 1, 1:02 AM CST	Severe Thunderstorm Warning	SGF	Dallas, Webster	58 min
Dec 1, 1:04 AM CST	Tornado Warning	SGF	Christian, Greene, Webster	26 min
Dec 1, 1:24 AM CST	Severe Thunderstorm Warning	SGF	Laclede, Wright	54 min
Dec 1, 1:29 AM CST	Severe Thunderstorm Warning	SGF	Benton	61 min
Dec 1, 1:30 AM CST	Tornado Warning	SGF	Webster, Wright	30 min
Dec 1, 1:33 AM CST	Severe Thunderstorm Warning	SGF	Howell, Texas	57 min
Dec 1, 1:45 AM CST	Severe Thunderstorm Warning	SGF	Camden, Miller, Morgan, Pulaski	60 min
Dec 1, 1:56 AM CST	Tornado Warning	SGF	Howell, Shannon, Texas	23 min
Dec 1, 1:58 AM CST	Severe Thunderstorm Warning	SGF	Oregon, Shannon	49 min
Dec 1, 2:05 AM CST	Tornado Warning	SGF	Texas	8 min
Dec 1, 2:10 AM CST	Tornado Warning	SGF	Shannon, Texas	20 min
Dec 1, 2:12 AM CST	Severe Thunderstorm Warning	SGF	Dent, Maries, Phelps	63 min
Dec 1, 2:15 AM CST	Tornado Warning	SGF	Shannon	30 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.