Alert archive / Missouri / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 430, NWS Springfield, MO
NWS Springfield, MO issued this severe thunderstorm warning at Aug 4, 2011, 6:10 AM CDT for 6 counties in Missouri. It was in force for 50 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
- Aug 4, 2011, 6:10 AM CDT (11:10 UTC)
- Expired
- Aug 4, 2011, 7:00 AM CDT
- In force
- 50 min
- Issued by
- NWS Springfield, MO
- Area
- Storm-based polygon
- Hail
- 0.88 in
- Wind
- 60.0 mph
Counties Camden County, MO, Laclede County, MO, Maries County, MO, Miller County, MO, Phelps County, MO, Pulaski County, MO
The radar
The Springfield radar (KSGF), 134 km from the middle of the area, began a volume at 11:11 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 |
|---|---|---|---|
| Aug 4, 3:28 AM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Springfield, MO (KSGF), launched 00:00Z, 11.2 hours before the alert went out and 185 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
- 3561 J/kg
- Mixed-layer CIN
- -36 J/kg
- Mixed-layer LCL
- 2210 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- 4 m²/s²
- 0-3 km storm-relative helicity
- 81 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 3.7
The text
As transmitted, in the capitals the NWS used until 2016.
739
WUUS53 KSGF 041110
SVRSGF
MOC029-105-125-131-161-169-041200-
/O.NEW.KSGF.SV.W.0430.110804T1110Z-110804T1200Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SPRINGFIELD MO
610 AM CDT THU AUG 4 2011
THE NATIONAL WEATHER SERVICE IN SPRINGFIELD HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
EASTERN CAMDEN COUNTY IN CENTRAL MISSOURI...
EASTERN LACLEDE COUNTY IN SOUTHWEST MISSOURI...
PULASKI COUNTY IN CENTRAL MISSOURI...
SOUTHERN MILLER COUNTY IN CENTRAL MISSOURI...
WESTERN MARIES COUNTY IN CENTRAL MISSOURI...
WESTERN PHELPS COUNTY IN EAST CENTRAL MISSOURI...
* UNTIL 700 AM CDT.
* AT 606 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
SEVERE THUNDERSTORMS ALONG A LINE EXTENDING FROM BRUMLEY TO
LAQUEY...MOVING EAST AT 35 MPH. THESE STORMS ARE CAPABLE OF
PRODUCING NICKEL SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60
MPH.
* SEVERE THUNDERSTORMS WILL BE NEAR...
WAYNESVILLE...ST. ROBERT...FORT LEONARD WOOD AND CROCKER BY 620 AM
CDT.
IBERIA BY 625 AM CDT.
SAINT ELIZABETH AND DEVIL'S ELBOW BY 630 AM CDT.
DIXON BY 635 AM CDT.
BRINKTOWN AND JEROME BY 640 AM CDT.
OTHER LOCATIONS IN THE WARNING INCLUDE LAKE OF THE OZARKS STATE PARK
AND LAKE OF THE OZARKS. INTERSTATE 44 BETWEEN MILE MARKERS 129 AND
176 WILL ALSO BE IMPACTED BY THESE STORMS.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THESE ARE DANGEROUS STORMS CAPABLE OF PRODUCING LARGE HAIL AND
DAMAGING WINDS...IF YOU ARE IN THEIR PATH SEEK SHELTER INDOORS AND
STAY AWAY FROM WINDOWS.
TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
IN SPRINGFIELD.
&&
LAT...LON 3772 9181 3756 9265 3813 9263 3830 9215
3830 9205
TIME...MOT...LOC 1110Z 254DEG 32KT 3810 9245 3780 9230
WIND...HAIL 60MPH 0.88IN
$$
GRIFFIN2 follow-up statements
954
WWUS53 KSGF 041134
SVSSGF
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
634 AM CDT THU AUG 4 2011
MOC029-041144-
/O.CAN.KSGF.SV.W.0430.000000T0000Z-110804T1200Z/
CAMDEN MO-
634 AM CDT THU AUG 4 2011
...THE SEVERE THUNDERSTORM WARNING FOR EASTERN CAMDEN COUNTY IS
CANCELLED...
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 AM CDT
THURSDAY MORNING FOR SOUTHERN MISSOURI.
&&
LAT...LON 3830 9205 3772 9181 3761 9243 3784 9244
3786 9241 3802 9241 3802 9244 3820 9245
3829 9218 3830 9218
TIME...MOT...LOC 1134Z 254DEG 32KT 3809 9225 3779 9210
$$
MOC105-125-131-161-169-041200-
/O.CON.KSGF.SV.W.0430.000000T0000Z-110804T1200Z/
LACLEDE MO-MARIES MO-MILLER MO-PHELPS MO-PULASKI MO-
634 AM CDT THU AUG 4 2011
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 700 AM CDT
FOR PULASKI...WESTERN PHELPS...SOUTHEASTERN MILLER...WESTERN MARIES
AND NORTHEASTERN LACLEDE COUNTIES...
AT 630 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE SEVERE THUNDERSTORMS ALONG A LINE EXTENDING FROM IBERIA TO
NORTHERN FORT LEONARD WOOD...MOVING EAST AT 35 MPH. THESE STORMS ARE
CAPABLE OF PRODUCING NICKEL SIZE HAIL...AND DAMAGING WINDS IN EXCESS
OF 60 MPH.
SEVERE THUNDERSTORMS WILL BE NEAR...
DEVIL'S ELBOW BY 640 AM CDT.
DIXON BY 645 AM CDT.
BRINKTOWN AND JEROME BY 650 AM CDT.
NEWBURG BY 655 AM CDT.
INTERSTATE 44 BETWEEN MILE MARKERS 143 AND 176 WILL ALSO BE IMPACTED
BY THESE STORMS.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
IN SPRINGFIELD.
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 AM CDT
THURSDAY MORNING FOR SOUTHERN MISSOURI.
&&
LAT...LON 3830 9205 3772 9181 3761 9243 3784 9244
3786 9241 3802 9241 3802 9244 3820 9245
3829 9218 3830 9218
TIME...MOT...LOC 1134Z 254DEG 32KT 3809 9225 3779 9210
WIND...HAIL 60MPH 0.88IN
$$
GRIFFIN487
WWUS53 KSGF 041153
SVSSGF
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
653 AM CDT THU AUG 4 2011
MOC105-125-131-161-169-041204-
/O.EXP.KSGF.SV.W.0430.000000T0000Z-110804T1200Z/
LACLEDE MO-MARIES MO-MILLER MO-PHELPS MO-PULASKI MO-
653 AM CDT THU AUG 4 2011
...THE SEVERE THUNDERSTORM WARNING FOR PULASKI...WESTERN PHELPS...
SOUTHEASTERN MILLER...WESTERN MARIES AND EAST CENTRAL LACLEDE
COUNTIES WILL EXPIRE AT 700 AM CDT...
NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THAT THE SEVERE
THUNDERSTORMS THAT PROMPTED THE WARNING HAD WEAKENED AND WERE NO
LONGER SEVERE...THUS THE WARNING HAS BEEN ALLOWED TO EXPIRE.
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 AM CDT
THURSDAY MORNING FOR SOUTHERN MISSOURI.
LAT...LON 3830 9205 3772 9181 3761 9243 3784 9244
3786 9241 3802 9241 3802 9244 3820 9245
3829 9218 3830 9218
TIME...MOT...LOC 1154Z 254DEG 32KT 3814 9203 3784 9188
$$
GRIFFINThe office that day
Everything else NWS Springfield, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 4, 1:11 AM CDT | Special Weather Statement | SGF | Lawrence | 49 min |
| Aug 4, 3:00 AM CDT | Special Weather Statement | SGF | Vernon | 30 min |
| Aug 4, 3:11 AM CDT | Severe Thunderstorm Warning | SGF | Vernon | 49 min |
| Aug 4, 3:39 AM CDT | Severe Thunderstorm Warning | SGF | Cedar, St. Clair, Vernon | 51 min |
| Aug 4, 3:59 AM CDT | Severe Thunderstorm Warning | SGF | Benton, Hickory, St. Clair | 46 min |
| Aug 4, 4:22 AM CDT | Severe Thunderstorm Warning | SGF | Dallas, Hickory, Polk | 38 min |
| Aug 4, 4:46 AM CDT | Severe Thunderstorm Warning | SGF | Benton, Camden, Hickory, Morgan | 44 min |
| Aug 4, 4:55 AM CDT | Severe Thunderstorm Warning | SGF | Camden, Dallas, Hickory, Laclede, Polk | 50 min |
| Aug 4, 5:35 AM CDT | Severe Thunderstorm Warning | SGF | Camden, Dallas, Laclede, Miller, Pulaski | 40 min |
Nearby
Severe Thunderstorm Warnings in Missouri, 2011Every severe thunderstorm warning in 2011
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.