Alert archive / Missouri / Tornado Warnings in 2017

Tornado Warning 28, NWS Springfield, MO

April 4, 2017Howell County, Shannon County, Texas County, Missouri

NWS Springfield, MO issued this tornado warning at Apr 4, 2017, 11:01 PM CDT for Howell County, Shannon County, Texas County, Missouri. It was in force for 44 min. 1 report 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 4, 2017, 11:01 PM CDT (04:01 UTC)
Expired: Apr 4, 2017, 11:45 PM CDT
In force: 44 min
Issued by: NWS Springfield, MO
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

Counties Howell County, MO, Shannon County, MO, Texas County, MO

The radar

The Springfield radar (KSGF), 155 km from the middle of the area, began a volume at 04:02 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 4, 11:30 PM CDT	HAIL 1	Summersville, 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
Apr 4, 9:12 PM CDT	Severe Thunderstorm Watch	SPC	4 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 4.0 hours before the alert went out and 191 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: 326 J/kg
Mixed-layer CIN: -51 J/kg
Mixed-layer LCL: 1384 m above ground
0-6 km bulk shear: 58 kt
0-1 km storm-relative helicity: 312 m²/s²
0-3 km storm-relative helicity: 743 m²/s²
Significant tornado parameter: 1.0
Supercell composite: 12.5

Open this sounding in Storm Lab

The text

As transmitted.

220 
WFUS53 KSGF 050401
TORSGF
MOC091-203-215-050445-
/O.NEW.KSGF.TO.W.0028.170405T0401Z-170405T0445Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Springfield MO
1101 PM CDT TUE APR 4 2017

The National Weather Service in Springfield has issued a

* Tornado Warning for...
  Northwestern Shannon County in south central Missouri...
  Northeastern Howell County in south central Missouri...
  Southeastern Texas County in south central Missouri...

* Until 1145 PM CDT
    
* At 1101 PM CDT, a severe thunderstorm capable of producing a
  tornado was located near Willow Springs, 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...
  Current River State Park...       Mountain View...
  Eminence...                       Summersville...
  Montier...                        Teresita...
  Arroll...                         Alley Spring...
  Hartshorn...                      Clear Springs...
  Round Spring...                   West Eminence...
  Pine Crest...                     

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.

This cluster of thunderstorms is capable of producing tornadoes and
widespread significant wind damage. Do not wait to see or hear the
tornado. For your protection move to an interior room on the lowest
floor of a building.

&&

LAT...LON 3687 9185 3691 9182 3702 9193 3702 9199
      3714 9190 3725 9176 3732 9161 3734 9149
      3732 9139 3723 9132 3716 9133 3708 9142
      3699 9156 3692 9169
TIME...MOT...LOC 0401Z 232DEG 43KT 3694 9194 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

Cramer

1 follow-up statement

683 
WWUS53 KSGF 050430
SVSSGF

Severe Weather Statement
National Weather Service Springfield MO
1130 PM CDT TUE APR 4 2017

MOC091-050439-
/O.CAN.KSGF.TO.W.0028.000000T0000Z-170405T0445Z/
Howell MO-
1130 PM CDT TUE APR 4 2017

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

A severe thunderstorm watch remains in effect until 300 AM CDT for
south central Missouri.

LAT...LON 3716 9133 3708 9142 3702 9155 3702 9161
      3703 9166 3705 9166 3705 9171 3709 9177
      3718 9179 3725 9172 3732 9159 3734 9149
      3732 9139 3723 9132
TIME...MOT...LOC 0429Z 237DEG 34KT 3708 9166 

$$

MOC203-215-050445-
/O.CON.KSGF.TO.W.0028.000000T0000Z-170405T0445Z/
Shannon MO-Texas MO-
1130 PM CDT TUE APR 4 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1145 PM CDT FOR
NORTHWESTERN SHANNON AND SOUTHEASTERN TEXAS COUNTIES...
    
At 1129 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Buck Hollow, moving northeast at 40 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...
Current River State Park...       Eminence...
Summersville...                   Alley Spring...
Hartshorn...                      Round Spring...
West Eminence...                  Arroll...
Pine Crest...                     

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.

This cluster of thunderstorms is capable of producing tornadoes and
widespread significant wind damage. Do not wait to see or hear the
tornado. For your protection move to an interior room on the lowest
floor of a building.

&&

LAT...LON 3716 9133 3708 9142 3702 9155 3702 9161
      3703 9166 3705 9166 3705 9171 3709 9177
      3718 9179 3725 9172 3732 9159 3734 9149
      3732 9139 3723 9132
TIME...MOT...LOC 0429Z 237DEG 34KT 3708 9166 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

Cramer

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 4, 7:14 PM CDT	Severe Thunderstorm Warning	SGF	Barry, Lawrence, Newton	46 min
Apr 4, 7:16 PM CDT	Severe Thunderstorm Warning	SGF	Barry, McDonald, Newton	59 min
Apr 4, 7:42 PM CDT	Severe Thunderstorm Warning	SGF	Christian, Dade, Greene	63 min
Apr 4, 8:02 PM CDT	Severe Thunderstorm Warning	SGF	Barry, Lawrence, Stone	43 min
Apr 4, 8:30 PM CDT	Severe Thunderstorm Warning	SGF	Christian, Dallas, Polk, Webster	60 min
Apr 4, 8:54 PM CDT	Severe Thunderstorm Warning	SGF	Laclede, Wright	66 min
Apr 4, 9:09 PM CDT	Severe Thunderstorm Warning	SGF	Christian, Stone, Taney	51 min
Apr 4, 9:24 PM CDT	Tornado Warning	SGF	Christian, Douglas, Taney, Webster, Wright	51 min
Apr 4, 9:46 PM CDT	Tornado Warning	SGF	Ozark, Taney	44 min
Apr 4, 9:49 PM CDT	Severe Thunderstorm Warning	SGF	Laclede, Phelps, Pulaski, Texas, Wright	41 min
Apr 4, 10:25 PM CDT	Tornado Warning	SGF	Douglas, Howell, Ozark	50 min
Apr 4, 10:29 PM CDT	Severe Thunderstorm Warning	SGF	Dent, Maries, Phelps, Pulaski, Texas	61 min
Apr 4, 11:41 PM CDT	Tornado Warning	SGF	Shannon	37 min
Apr 4, 11:50 PM CDT	Severe Thunderstorm Warning	SGF	Howell, Oregon, Shannon	37 min
Apr 5, 12:44 AM CDT	Areal Flood Advisory	SGF	Dent, Douglas, Howell, Laclede, Ozark, Phelps and 3 more	9 hr
Apr 5, 2:42 AM CDT	Areal Flood Warning	SGF	Dent, Phelps, Pulaski, Texas, Wright	7 hr
Apr 5, 3:32 AM CDT	Wind Advisory	SGF	Barry, Barton, Benton, Cedar, Christian, Dade and 10 more	15 hr
Apr 5, 9:44 AM CDT	Areal Flood Warning	SGF	Dent, Douglas, Howell, Laclede, Ozark, Texas and 1 more	6 hr
Apr 5, 6:32 PM CDT	River Flood Warning	SGF	Pulaski	13 hr

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.