Alert archive / Missouri / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 31, NWS Springfield, MO

March 2, 2012Maries County, Missouri

NWS Springfield, MO issued this severe thunderstorm warning at Mar 2, 2012, 4:23 AM CST for Maries County, Missouri. It was in force for 22 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: Mar 2, 2012, 4:23 AM CST (10:23 UTC)
Expired: Mar 2, 2012, 4:45 AM CST
In force: 22 min
Issued by: NWS Springfield, MO
Area: Storm-based polygon
Hail: 1.75 in
Wind: 50.0 mph

County Maries County, MO

The radar

The St Louis radar (KLSX), 110 km from the middle of the area, began a volume at 10:23 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Mar 2, 2:07 AM CST	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 10.4 hours before the alert went out and 231 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 3164 m above ground
0-6 km bulk shear: 66 kt
0-1 km storm-relative helicity: 241 m²/s²
0-3 km storm-relative helicity: 396 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

295 
WUUS53 KSGF 021023
SVRSGF
MOC125-021045-
/O.NEW.KSGF.SV.W.0031.120302T1023Z-120302T1045Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SPRINGFIELD MO
423 AM CST FRI MAR 2 2012

THE NATIONAL WEATHER SERVICE IN SPRINGFIELD HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN MARIES COUNTY IN CENTRAL MISSOURI...

* UNTIL 445 AM CST.

* AT 421 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 6 MILES NORTHWEST OF VIENNA...OR 18 MILES
  SOUTHWEST OF LINN...MOVING EAST AT 65 MPH. THIS STORM IS CAPABLE OF
  PRODUCING LARGE DAMAGING HAIL UP TO GOLF BALL SIZE.

* LOCATIONS IMPACTED INCLUDE BELLE AND VIENNA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A DANGEROUS STORM CAPABLE OF PRODUCING LARGE HAIL AND
DAMAGING WINDS...IF YOU ARE IN ITS PATH SEEK SHELTER INDOORS AND STAY
AWAY FROM WINDOWS.

&&

LAT...LON 3829 9163 3817 9164 3817 9206 3829 9213
      3829 9189 3830 9188 3830 9165
TIME...MOT...LOC 1023Z 266DEG 64KT 3826 9197
WIND...HAIL <50MPH 1.75IN

$$

1 follow-up statement

056 
WWUS53 KSGF 021038
SVSSGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
438 AM CST FRI MAR 2 2012

MOC125-021045-
/O.EXP.KSGF.SV.W.0031.000000T0000Z-120302T1045Z/
MARIES MO-
438 AM CST FRI MAR 2 2012

...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN MARIES COUNTY WILL
EXPIRE AT 445 AM CST...

NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THAT THE SEVERE
THUNDERSTORM THAT PROMPTED THE WARNING IS EXITING THE WARNED AREA...
THUS THE WARNING IS BEING ALLOWED TO EXPIRE.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 700 AM CST FRIDAY
MORNING FOR SOUTHERN MISSOURI.

LAT...LON 3829 9163 3817 9164 3817 9206 3829 9213
      3829 9189 3830 9188 3830 9165
TIME...MOT...LOC 1035Z 266DEG 64KT 3827 9170

$$

GRIFFIN

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 2, 1:53 AM CST	Special Weather Statement	SGF	Vernon	37 min
Mar 2, 2:13 AM CST	Special Weather Statement	SGF	St. Clair	32 min
Mar 2, 2:20 AM CST	Severe Thunderstorm Warning	SGF	Benton, Hickory, St. Clair	40 min
Mar 2, 2:37 AM CST	Severe Thunderstorm Warning	SGF	St. Clair	21 min
Mar 2, 2:51 AM CST	Severe Thunderstorm Warning	SGF	Benton, Camden, Morgan	39 min
Mar 2, 3:00 AM CST	Severe Thunderstorm Warning	SGF	Benton, Camden, Hickory, Morgan	34 min
Mar 2, 3:19 AM CST	Severe Thunderstorm Warning	SGF	Miller, Morgan	26 min
Mar 2, 3:32 AM CST	Severe Thunderstorm Warning	SGF	Camden, Miller, Morgan	43 min
Mar 2, 3:56 AM CST	Severe Thunderstorm Warning	SGF	Miller	19 min
Mar 2, 5:45 AM CST	Special Weather Statement	SGF	Morgan	15 min
Mar 2, 7:44 AM CST	Special Weather Statement	SGF	Miller	31 min
Mar 2, 8:53 AM CST	Special Weather Statement	SGF	Maries	37 min
Mar 2, 10:09 AM CST	Special Weather Statement	SGF	Oregon	51 min

Nearby

Severe Thunderstorm Warnings in Missouri, 2012 Every severe thunderstorm warning in 2012

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.