Alert archive / Missouri / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 45, NWS Springfield, MO
NWS Springfield, MO issued this severe thunderstorm warning at Mar 17, 2012, 11:56 AM CDT for Maries County, Phelps County, Pulaski County, Missouri. It was in force for 34 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
- Mar 17, 2012, 11:56 AM CDT (16:56 UTC)
- Expired
- Mar 17, 2012, 12:30 PM CDT
- In force
- 34 min
- Issued by
- NWS Springfield, MO
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 50.0 mph
Counties Maries County, MO, Phelps County, MO, Pulaski County, MO
The radar
The St Louis radar (KLSX), 138 km from the middle of the area, began a volume at 16:59 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 17, 11:59 AM CDT | HAIL 0.88 | 1 S Dixon, MO | |
| Mar 17, 12:00 PM CDT | HAIL 0.88 | 2 S Dixon, MO | |
| Mar 17, 12:00 PM CDT | HAIL 0.88 | Dixon, 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, 4.9 hours before the alert went out and 201 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.
- Mixed-layer CAPE
- 1549 J/kg
- Mixed-layer CIN
- -22 J/kg
- Mixed-layer LCL
- 724 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 71 m²/s²
- 0-3 km storm-relative helicity
- 83 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
258 WUUS53 KSGF 171656 SVRSGF MOC125-161-169-171730- /O.NEW.KSGF.SV.W.0045.120317T1656Z-120317T1730Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE SPRINGFIELD MO 1156 AM CDT SAT MAR 17 2012 THE NATIONAL WEATHER SERVICE IN SPRINGFIELD HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTHEASTERN PULASKI COUNTY IN CENTRAL MISSOURI... NORTHWESTERN PHELPS COUNTY IN EAST CENTRAL MISSOURI... SOUTH CENTRAL MARIES COUNTY IN CENTRAL MISSOURI... * UNTIL 1230 PM CDT. * AT 1152 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 3 MILES SOUTH OF DIXON...OR 10 MILES NORTHEAST OF WAYNESVILLE...MOVING NORTHEAST AT 25 MPH. THIS STORM IS CAPABLE OF PRODUCING QUARTER SIZE HAIL. * LOCATIONS IMPACTED INCLUDE BRINKTOWN AND DIXON. 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 3820 9207 3809 9183 3786 9207 3791 9216 TIME...MOT...LOC 1657Z 211DEG 20KT 3797 9208 WIND...HAIL <50MPH 1.00IN $$ GRIFFIN
1 follow-up statement
164 WWUS53 KSGF 171721 SVSSGF SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE SPRINGFIELD MO 1221 PM CDT SAT MAR 17 2012 MOC125-161-169-171731- /O.EXP.KSGF.SV.W.0045.000000T0000Z-120317T1730Z/ MARIES MO-PHELPS MO-PULASKI MO- 1221 PM CDT SAT MAR 17 2012 ...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN PULASKI... NORTHWESTERN PHELPS AND SOUTH CENTRAL MARIES COUNTIES WILL EXPIRE AT 1230 PM CDT... NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THAT THE SEVERE THUNDERSTORM THAT PROMPTED THE WARNING HAD WEAKENED AND WAS NO LONGER SEVERE...THUS THE WARNING HAS BEEN ALLOWED TO EXPIRE. LAT...LON 3820 9207 3809 9183 3786 9207 3791 9216 TIME...MOT...LOC 1721Z 211DEG 20KT 3808 9199 $$ GRIFFIN
The office that day
Everything else NWS Springfield, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 17, 9:31 AM CDT | Special Weather Statement | SGF | Hickory | 44 min |
| Mar 17, 9:44 AM CDT | Special Weather Statement | SGF | Morgan | 46 min |
| Mar 17, 10:01 AM CDT | Special Weather Statement | SGF | Camden | 29 min |
| Mar 17, 10:27 AM CDT | Special Weather Statement | SGF | Morgan | 18 min |
| Mar 17, 11:05 AM CDT | Special Weather Statement | SGF | Miller | 25 min |
| Mar 17, 11:13 AM CDT | Special Weather Statement | SGF | Douglas | 32 min |
| Mar 17, 11:29 AM CDT | Special Weather Statement | SGF | Pulaski | 31 min |
| Mar 17, 11:43 AM CDT | Special Weather Statement | SGF | Texas | 32 min |
| Mar 17, 11:52 AM CDT | Special Weather Statement | SGF | Maries | 38 min |
| Mar 17, 12:54 PM CDT | Special Weather Statement | SGF | Camden | 36 min |
| Mar 17, 1:06 PM CDT | Severe Thunderstorm Warning | SGF | Camden, Miller, Morgan | 24 min |
| Mar 17, 2:36 PM CDT | Special Weather Statement | SGF | Miller | 24 min |
| Mar 17, 3:03 PM CDT | Special Weather Statement | SGF | Miller | 27 min |
| Mar 17, 3:05 PM CDT | Severe Thunderstorm Warning | SGF | Maries, Miller | 25 min |
| Mar 17, 3:29 PM CDT | Severe Thunderstorm Warning | SGF | Maries, Miller | 31 min |
| Mar 17, 4:12 PM CDT | Special Weather Statement | SGF | Maries, Miller | 63 min |
| Mar 17, 4:42 PM CDT | Severe Thunderstorm Warning | SGF | Maries, Phelps | 48 min |
| Mar 17, 5:00 PM CDT | Severe Thunderstorm Warning | SGF | Maries, Miller | 30 min |
| Mar 17, 5:17 PM CDT | Special Weather Statement | SGF | Miller | 28 min |
| Mar 17, 5:25 PM CDT | Severe Thunderstorm Warning | SGF | Maries, Miller | 50 min |
| Mar 17, 6:17 PM CDT | Areal Flood Advisory | SGF | Maries, Miller, Phelps | 6 hr |
| Mar 17, 6:20 PM CDT | Special Weather Statement | SGF | Maries | 55 min |
| Mar 17, 6:42 PM CDT | Flash Flood Warning | SGF | Maries, Miller | 5 hr |
| Mar 17, 6:49 PM CDT | Severe Thunderstorm Warning | SGF | Maries | 41 min |
Nearby
Severe Thunderstorm Warnings in Missouri, 2012Every 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.