Alert archive / Missouri / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 365, NWS Springfield, MO

March 21, 2017Dallas County, Polk County, Missouri

NWS Springfield, MO issued this severe thunderstorm warning at Mar 21, 2017, 11:38 AM CDT for Dallas County, Polk County, Missouri. It was in force for 67 min. 2 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: Mar 21, 2017, 11:38 AM CDT (16:38 UTC)
Expired: Mar 21, 2017, 12:45 PM CDT
In force: 67 min
Issued by: NWS Springfield, MO
Area: Whole counties

Counties Dallas County, MO, Polk County, MO

The radar

The Springfield radar (KSGF), 49 km from the middle of the area, began a volume at 16:38 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
Mar 21, 12:30 PM CDT	HAIL 0.88	Buffalo, MO	.
Mar 21, 12:38 PM CDT	HAIL 1	Buffalo, MO	.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Springfield, MO (KSGF), launched 12:00Z, 4.6 hours before the alert went out and 98 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: 2 J/kg
Mixed-layer CIN: -659 J/kg
Mixed-layer LCL: 1255 m above ground
0-6 km bulk shear: 45 kt
0-1 km storm-relative helicity: 215 m²/s²
0-3 km storm-relative helicity: 215 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.5

Open this sounding in Storm Lab

The text

As transmitted.

156 
WUUS53 KSGF 211638
SVRSGF
MOC059-167-211745-
/O.NEW.KSGF.SV.W.0010.170321T1638Z-170321T1745Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Springfield MO
1138 AM CDT TUE MAR 21 2017

The National Weather Service in Springfield has issued a

* Severe Thunderstorm Warning for...
  Central Dallas County in southwestern Missouri...
  Northeastern Polk County in southwestern Missouri...

* Until 1245 PM CDT

* At 1138 AM CDT, a severe thunderstorm was located 8 miles north of
  Bolivar, moving east at 35 mph.

  HAZARD...Quarter size hail. 

  SOURCE...Radar indicated. 

  IMPACT...Damage to vehicles is expected. 

* Locations impacted include...
  Pomme de Terre Lake...            Bennett Spring State Park...
  Buffalo...                        Polk...
  Louisburg...                      Windyville...
  Goodson...                        Plad...
  Long Lane...                      Pumpkin Center...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Prepare immediately for large hail and deadly cloud to ground
lightning. Seek shelter inside a well-built structure. Stay away from
windows.

&&

LAT...LON 3772 9286 3772 9284 3755 9285 3771 9350
      3780 9346 3780 9286
TIME...MOT...LOC 1638Z 278DEG 30KT 3774 9341 

HAIL...1.00IN
WIND...<50MPH
 
$$

Cramer

3 follow-up statements

814 
WWUS53 KSGF 211659
SVSSGF

Severe Weather Statement
National Weather Service Springfield MO
1159 AM CDT TUE MAR 21 2017

MOC059-167-211745-
/O.CON.KSGF.SV.W.0010.000000T0000Z-170321T1745Z/
Dallas MO-Polk MO-
1159 AM CDT TUE MAR 21 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1245 PM CDT
FOR CENTRAL DALLAS AND EAST CENTRAL POLK COUNTIES...

At 1158 AM CDT, a severe thunderstorm was located 9 miles northeast
of Bolivar, moving east at 30 mph.

HAZARD...Quarter size hail. 

SOURCE...Radar indicated. 

IMPACT...Damage to vehicles is expected. 

Locations impacted include...
Bennett Spring State Park...      Buffalo...
Windyville...                     Goodson...
Plad...                           Long Lane...
Pumpkin Center...                 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Prepare immediately for large hail and deadly cloud to ground
lightning. Seek shelter inside a well-built structure. Stay away from
windows.

&&

LAT...LON 3772 9284 3755 9285 3767 9336 3772 9333
      3774 9324 3776 9286 3772 9286
TIME...MOT...LOC 1658Z 284DEG 24KT 3769 9327 

HAIL...1.00IN
WIND...<50MPH
 
$$

Cramer

576 
WWUS53 KSGF 211730
SVSSGF

Severe Weather Statement
National Weather Service Springfield MO
1230 PM CDT TUE MAR 21 2017

MOC167-211739-
/O.CAN.KSGF.SV.W.0010.000000T0000Z-170321T1745Z/
Polk MO-
1230 PM CDT TUE MAR 21 2017

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL POLK COUNTY IS
CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

LAT...LON 3762 9316 3765 9317 3767 9317 3768 9310
      3767 9302 3766 9291 3766 9284 3755 9285
TIME...MOT...LOC 1729Z 293DEG 23KT 3762 9301 

$$

MOC059-211745-
/O.CON.KSGF.SV.W.0010.000000T0000Z-170321T1745Z/
Dallas MO-
1230 PM CDT TUE MAR 21 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1245 PM CDT
FOR CENTRAL DALLAS COUNTY...

At 1229 PM CDT, a severe thunderstorm was located near Buffalo,
moving southeast at 25 mph.

HAZARD...Quarter size hail. 

SOURCE...Radar indicated. 

IMPACT...Damage to vehicles is expected. 

Locations impacted include...
Buffalo...                        Long Lane...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Prepare immediately for large hail and deadly cloud to ground
lightning. Seek shelter inside a well-built structure. Stay away from
windows.

&&

LAT...LON 3762 9316 3765 9317 3767 9317 3768 9310
      3767 9302 3766 9291 3766 9284 3755 9285
TIME...MOT...LOC 1729Z 293DEG 23KT 3762 9301 

HAIL...1.00IN
WIND...<50MPH
 
$$

Cramer

867 
WWUS53 KSGF 211746
SVSSGF

Severe Weather Statement
National Weather Service Springfield MO
1246 PM CDT TUE MAR 21 2017

MOC059-211756-
/O.EXP.KSGF.SV.W.0010.000000T0000Z-170321T1745Z/
Dallas MO-
1246 PM CDT TUE MAR 21 2017

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL DALLAS COUNTY HAS
EXPIRED...
                
The storm which prompted the warning has weakened below severe
limits, and no longer pose an immediate threat to life or property.
Therefore, the warning has been allowed to expire.  However heavy
rain is still possible with this thunderstorm.

LAT...LON 3762 9316 3765 9317 3767 9317 3768 9310
      3767 9302 3766 9291 3766 9284 3755 9285
TIME...MOT...LOC 1746Z 278DEG 30KT 3761 9290 

$$

Cramer

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Springfield, MO wrote its last area forecast discussion before this severe thunderstorm warning went out at Mar 21, 6:17 AM CDT, 5 hours 21 minutes earlier.

Area forecast discussion, Mar 21, 6:17 AM CDT, 5 hours 21 minutes before

Area Forecast Discussion
National Weather Service Springfield MO
617 AM CDT Tue Mar 21 2017

.SHORT TERM...(Today and tonight)
Issued at 315 AM CDT Tue Mar 21 2017

A surface cold front has sagged south across the region into
northern Arkansas early this morning. The 850mb cold front is
lagging behind the surface front and will spread south across the
area today.

Instability in the 800-700mb level will increase to 500 to
1000J/kg early this morning across far southwestern Missouri then
spread over the rest of southern Missouri later this morning and
afternoon. Cin in these levels will also decrease, especially
later this morning/afternoon along/ahead of the 850mb front.

An upper level shortwave trough will spread across the area this
morning and may spark a few showers/storms across southwestern
Missouri early this morning. The better chances for showers and
storms will occur on the later this morning and may linger into
the overnight hours as the front slowly moves south. There may be
just enough instability for a few strong storms across southern
Missouri with penny size hail the main risk.

With the front moving south through the area temperatures will
range from the around 60 across central Missouri to the lower 70s
across southern Missouri tonight.

.LONG TERM...(Wednesday through Monday)
Issued at 315 AM CDT Tue Mar 21 2017

Cooler conditions will occur on Wednesday as highs in the 40s and
50s occur. The front will then start to lift back to the north as
a warm front later Wednesday into Thursday, some scattered
showers will be possible as the front moves north.

Warmer conditions will occur on Thursday and Friday as highs in
the 60s and 70s can be expected. Gusty southerly winds will occur
on Friday as gust over 30mph are expected at times. These gusty
winds will bring and increase in low level moisture into the area
ahead of an approaching storm system that will move across the
Plains on Friday then across the area on Saturday..

The upper level low and associated surface low will move
northeast across southern Missouri Friday night into Saturday.
The area will be in the warm sector ahead low and thunderstorms
are expected to develop ahead of the system Friday afternoon into
Friday night. The better severe potential will likely be to the
south across Arkansas where better instability will be in place,
but a severe risk will likely extend north into southeastern
Kansas and the Missouri Ozarks.

Another system will track across the region late this weekend into
early next week brining additional shower and storm chances to the
region.

&&

.AVIATION...(For the 12Z TAFS through 12Z Wednesday morning)
Issued at 615 AM CDT Tue Mar 21 2017

Scattered showers and storms have developed across portions of
western Missouri early this morning. This activity will continue
to develop and track across the area this morning. This activity
will again be scattered in nature and may impact the TAF site.

Additional showers and storms will develop later this afternoon
into tonight. The storm chances will generally be late
afternoon/early evening with showers possible into the overnight
hours. Again this activity will be scattered in nature at any
given time.

Gusty northeasterly winds will develop today and continue into
tonight.

&&

.SGF WATCHES/WARNINGS/ADVISORIES...
MO...NONE.
KS...NONE.
&&

SHORT TERM...Wise
LONG TERM...Wise
AVIATION...Wise

Hazardous weather outlook, Mar 21, 4:17 AM CDT, 7 hours 21 minutes before

Hazardous Weather Outlook
National Weather Service Springfield MO
417 AM CDT Tue Mar 21 2017

KSZ073-097-101-MOZ055>058-066>071-077>083-088>098-101>106-220930-
Bourbon-Crawford-Cherokee-Benton-Morgan-Miller-Maries-Vernon-
St. Clair-Hickory-Camden-Pulaski-Phelps-Barton-Cedar-Polk-Dallas-
Laclede-Texas-Dent-Jasper-Dade-Greene-Webster-Wright-Newton-
Lawrence-Christian-Douglas-Howell-Shannon-McDonald-Barry-Stone-
Taney-Ozark-Oregon-
417 AM CDT Tue Mar 21 2017

This Hazardous Weather Outlook is for portions of the Missouri
Ozarks and extreme southeast Kansas.

.DAY ONE...Today and Tonight.

Weather hazards expected...

  Limited Hail risk.
  Limited Lightning risk.
  Limited Non thunderstorm wind risk.

DISCUSSION...

Isolated storms will affect portions of southeastern Kansas into
southern Missouri this morning, with scattered storms expected
this afternoon into this evening across central Missouri and
southern Missouri. A few strong storms will be possible with hail
to the size of pennies the main risk.

Gusty northerly winds will occur later this afternoon into tonight
across far southwestern Missouri and portions of southeastern
Kansas where gusts over 30 mph will be possible.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

Brisk and gusty southerly winds will likely return to western
Missouri and southeastern Kansas late this work week. Wind gusts
over 30 mph appear increasingly likely for Friday.

A strong storm system will approach and track through the region
Friday into Saturday bringing better widespread chances for storms
to the region. There will be severe storm potential Friday
afternoon into the overnight hours.

.SPOTTER INFORMATION STATEMENT...

  Spotter activation will not be needed through tonight.

&&

More detailed information can be accessed at:
http://www.weather.gov/sgf/sitrep

This product in graphical format...along with other weather...
hydrological and climate information...at
http://www.weather.gov/sgf

Wise

In the hours before

Local storm report, Mar 21, 10:13 AM CDT, 1 hour 25 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1013 AM CDT TUE MAR 21 2017

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1002 AM     HAIL             1 N JENKINS             36.80N 93.69W
03/21/2017  M0.75 INCH       BARRY              MO   TRAINED SPOTTER

            .

&&

JLR

Local storm report, Mar 21, 10:27 AM CDT, 1 hour 11 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1027 AM CDT TUE MAR 21 2017

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0950 AM     HAIL             5 SW STOTTS CITY        37.06N 94.01W
03/21/2017  E1.00 INCH       LAWRENCE           MO   PUBLIC

            .

&&

JLR

Local storm report, Mar 21, 10:29 AM CDT, 1 hour 9 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1029 AM CDT TUE MAR 21 2017

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1029 AM     HAIL             GALENA                  36.81N 93.47W
03/21/2017  M0.50 INCH       STONE              MO   EMERGENCY MNGR

            .

&&

JLR

Local storm report, Mar 21, 10:39 AM CDT, 59 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1039 AM CDT TUE MAR 21 2017

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1038 AM     HAIL             4 N REEDS SPRING        36.81N 93.38W
03/21/2017  E1.50 INCH       STONE              MO   PUBLIC

            .

&&

JLR

Local storm report, Mar 21, 10:40 AM CDT, 58 minutes before

PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1040 AM CDT TUE MAR 21 2017

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1034 AM     HAIL             4 N REEDS SPRING        36.81N 93.38W
03/21/2017  E1.50 INCH       STONE              MO   PUBLIC

            CORRECTED TIME OF REPORT.

&&

JLR

Local storm report, Mar 21, 10:50 AM CDT, 48 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1050 AM CDT TUE MAR 21 2017

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1043 AM     HAIL             3 SW BILLINGS           37.04N 93.59W
03/21/2017  E1.00 INCH       CHRISTIAN          MO   TRAINED SPOTTER

            TRAINED SPOTTER REPORTED QUARTER SIZED HAIL BETWEEN
            BILLINGS AND MARIONVILLE.

&&

RFRYE

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 21, 6:16 AM CDT	Special Weather Statement	SGF	Cedar	29 min
Mar 21, 6:33 AM CDT	Severe Thunderstorm Warning	SGF	Cedar, Polk	27 min
Mar 21, 6:58 AM CDT	Special Weather Statement	SGF	Polk	47 min
Mar 21, 7:59 AM CDT	Special Weather Statement	SGF	Greene	31 min
Mar 21, 8:37 AM CDT	Severe Thunderstorm Warning	SGF	Newton	53 min
Mar 21, 8:41 AM CDT	Severe Thunderstorm Warning	SGF	Jasper, Newton	49 min
Mar 21, 9:12 AM CDT	Severe Thunderstorm Warning	SGF	Barry	63 min
Mar 21, 9:45 AM CDT	Severe Thunderstorm Warning	SGF	Lawrence	60 min
Mar 21, 9:50 AM CDT	Severe Thunderstorm Warning	SGF	Barry, Stone	55 min
Mar 21, 10:30 AM CDT	Severe Thunderstorm Warning	SGF	Christian, Stone	30 min
Mar 21, 10:39 AM CDT	Severe Thunderstorm Warning	SGF	Christian, Taney	20 min
Mar 21, 11:34 AM CDT	Severe Thunderstorm Warning	SGF	Miller, Morgan	56 min
Mar 21, 2:23 PM CDT	Severe Thunderstorm Warning	SGF	Texas	67 min

Nearby

Severe Thunderstorm Warnings in Missouri, 2017 Every severe thunderstorm warning 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.