Alert archive / Missouri / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 39, NWS Springfield, MO

March 15, 2012Phelps County, Missouri

NWS Springfield, MO issued this severe thunderstorm warning at Mar 15, 2012, 5:17 PM CDT for Phelps County, Missouri. It was in force for 19 min. 2 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: Mar 15, 2012, 5:17 PM CDT (22:17 UTC)
Expired: Mar 15, 2012, 5:36 PM CDT
In force: 19 min
Issued by: NWS Springfield, MO
Area: Storm-based polygon
Hail: 1.0 in
Wind: 50.0 mph

County Phelps County, MO

The radar

The St Louis radar (KLSX), 135 km from the middle of the area, began a volume at 22:18 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 15, 5:25 PM CDT	HAIL 1	Jerome, MO
Mar 15, 5:35 PM CDT	HAIL 1	Newburg, 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, 10.3 hours before the alert went out and 205 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: 1947 J/kg
Mixed-layer CIN: -23 J/kg
Mixed-layer LCL: 758 m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: 130 m²/s²
0-3 km storm-relative helicity: 105 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.

553 
WUUS53 KSGF 152217
SVRSGF
MOC161-152300-
/O.NEW.KSGF.SV.W.0039.120315T2217Z-120315T2300Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SPRINGFIELD MO
517 PM CDT THU MAR 15 2012

THE NATIONAL WEATHER SERVICE IN SPRINGFIELD HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WESTERN PHELPS COUNTY IN EAST CENTRAL MISSOURI...

* UNTIL 600 PM CDT.

* AT 515 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM NEAR JEROME...OR 10 MILES WEST OF ROLLA...
  MOVING EAST AT 20 MPH. THIS STORM IS CAPABLE OF PRODUCING QUARTER
  SIZE HAIL.

* LOCATIONS IMPACTED INCLUDE DOOLITTLE...JEROME...NEWBURG...NORTHWYE
  AND ROLLA.

INTERSTATE 44 BETWEEN MILE MARKERS 169 AND 191 WILL ALSO BE IMPACTED
BY THIS STORM.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3779 9172 3779 9180 3775 9181 3773 9202
      3801 9202 3801 9197 3804 9195 3803 9193
      3805 9189 3805 9168
TIME...MOT...LOC 2217Z 254DEG 16KT 3792 9194
WIND...HAIL <50MPH 1.00IN

$$

KARDELL

1 follow-up statement

567 
WWUS53 KSGF 152236
SVSSGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
536 PM CDT THU MAR 15 2012

MOC161-152246-
/O.CAN.KSGF.SV.W.0039.000000T0000Z-120315T2300Z/
PHELPS MO-
536 PM CDT THU MAR 15 2012

...THE SEVERE THUNDERSTORM WARNING FOR WESTERN PHELPS COUNTY IS
CANCELLED...

NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THAT THE SEVERE
THUNDERSTORM THAT PROMPTED THE WARNING HAD WEAKENED AND WAS NO LONGER
SEVERE...THUS THE WARNING HAS BEEN CANCELLED.

ADDITIONAL THUNDERSTORMS WILL CONTINUE ACROSS THE AREA...WITH HAIL 
TO THE SIZE OF NICKELS EXPECTED.

LAT...LON 3779 9172 3779 9180 3775 9181 3773 9202
      3801 9202 3801 9197 3804 9195 3803 9193
      3805 9189 3805 9168
TIME...MOT...LOC 2236Z 254DEG 16KT 3794 9184

$$

KARDELL

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 15, 1:42 PM CDT	Special Weather Statement	SGF	Douglas	33 min
Mar 15, 3:23 PM CDT	Special Weather Statement	SGF	Maries	22 min
Mar 15, 3:29 PM CDT	Severe Thunderstorm Warning	SGF	Dent	46 min
Mar 15, 3:39 PM CDT	Special Weather Statement	SGF	Phelps	36 min
Mar 15, 3:46 PM CDT	Severe Thunderstorm Warning	SGF	Maries, Miller	17 min
Mar 15, 3:48 PM CDT	Severe Thunderstorm Warning	SGF	Phelps	42 min
Mar 15, 4:11 PM CDT	Severe Thunderstorm Warning	SGF	Maries, Phelps, Pulaski	49 min
Mar 15, 4:21 PM CDT	Severe Thunderstorm Warning	SGF	Maries	39 min
Mar 15, 4:28 PM CDT	Severe Thunderstorm Warning	SGF	Maries, Phelps	47 min
Mar 15, 4:39 PM CDT	Flash Flood Warning	SGF	Phelps	6 hr
Mar 15, 4:59 PM CDT	Severe Thunderstorm Warning	SGF	Pulaski	31 min
Mar 15, 5:39 PM CDT	Special Weather Statement	SGF	Phelps, Pulaski	51 min
Mar 15, 5:53 PM CDT	Flash Flood Warning	SGF	Pulaski	5 hr
Mar 15, 5:57 PM CDT	Severe Thunderstorm Warning	SGF	Phelps	33 min
Mar 15, 6:11 PM CDT	Special Weather Statement	SGF	Shannon	49 min
Mar 15, 6:30 PM CDT	Severe Thunderstorm Warning	SGF	Dent, Phelps	45 min
Mar 15, 6:36 PM CDT	Severe Thunderstorm Warning	SGF	Shannon, Texas	39 min
Mar 15, 6:57 PM CDT	Severe Thunderstorm Warning	SGF	Dent, Shannon	34 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.