Alert archive / Missouri / Tornado Warnings in 2011
Tornado Warning 66, NWS Springfield, MO
NWS Springfield, MO issued this tornado warning at Sep 18, 2011, 5:40 PM CDT for Barry County, Missouri. It was in force for 23 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
- Sep 18, 2011, 5:40 PM CDT (22:40 UTC)
- Expired
- Sep 18, 2011, 6:03 PM CDT
- In force
- 23 min
- Issued by
- NWS Springfield, MO
- Area
- Storm-based polygon
County Barry County, MO
The radar
The Springfield radar (KSGF), 78 km from the middle of the area, began a volume at 22:40 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 |
|---|---|---|---|
| Sep 18, 3:30 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
The nearest sounding before it
Springfield, MO (KSGF), launched 12:00Z, 10.7 hours before the alert went out and 32 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1001 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- 228 m²/s²
- 0-3 km storm-relative helicity
- 350 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
498 WFUS53 KSGF 182240 TORSGF MOC009-182315- /O.NEW.KSGF.TO.W.0066.110918T2240Z-110918T2315Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE SPRINGFIELD MO 540 PM CDT SUN SEP 18 2011 THE NATIONAL WEATHER SERVICE IN SPRINGFIELD HAS ISSUED A * TORNADO WARNING FOR... SOUTHERN BARRY COUNTY IN SOUTHWEST MISSOURI... * UNTIL 615 PM CDT. * AT 535 PM CDT...LOCAL LAW ENFORCEMENT AND FIRE DEPARTMENT REPORTED A TORNADO NEAR WASHBURN...OR 8 MILES SOUTHWEST OF CASSVILLE...MOVING EAST AT 25 MPH. * LOCATIONS IMPACTED INCLUDE EAGLE ROCK...WASHBURN AND WAYNE. OTHER LOCATIONS IN THE WARNING INCLUDE ROARING RIVER STATE PARK AND TABLE ROCK LAKE. IN ADDITION TO A TORNADO...THIS STORM IS CAPABLE OF PRODUCING DESTRUCTIVE STRAIGHT LINE WINDS IN EXCESS OF 70 MPH. PRECAUTIONARY/PREPAREDNESS ACTIONS... THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS. IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS. IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER IN A NEARBY REINFORCED BUILDING. AS A LAST RESORT...SEEK SHELTER IN A CULVERT...DITCH OR LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS. && LAT...LON 3669 9370 3652 9369 3654 9397 3664 9397 TIME...MOT...LOC 2239Z 267DEG 22KT 3658 9391 HAIL 1.00IN $$ GRIFFIN
2 follow-up statements
586 WWUS53 KSGF 182256 SVSSGF SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE SPRINGFIELD MO 556 PM CDT SUN SEP 18 2011 MOC009-182315- /O.CON.KSGF.TO.W.0066.000000T0000Z-110918T2315Z/ BARRY MO- 556 PM CDT SUN SEP 18 2011 ...A TORNADO WARNING REMAINS IN EFFECT UNTIL 615 PM CDT FOR SOUTH CENTRAL BARRY COUNTY... AT 554 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A TORNADO OVER SOUTHERN BARRY COUNTY...OR 7 MILES SOUTHEAST OF CASSVILLE...MOVING EAST AT 25 MPH. THIS STORM HAS A HISTORY OF PRODUCING TORNADOES. THE WILL GENERALLY REMAIN OVER RURAL AREAS OF SOUTH CENTRAL BARRY COUNTY. OTHER LOCATIONS IN THE WARNING INCLUDE ROARING RIVER STATE PARK AND TABLE ROCK LAKE. IN ADDITION TO A TORNADO...THIS STORM IS CAPABLE OF PRODUCING DESTRUCTIVE STRAIGHT LINE WINDS IN EXCESS OF 60 MPH. PRECAUTIONARY/PREPAREDNESS ACTIONS... A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 PM CDT SUNDAY EVENING FOR SOUTHWEST MISSOURI. && LAT...LON 3666 9370 3654 9369 3657 9384 3664 9385 TIME...MOT...LOC 2256Z 264DEG 20KT 3659 9380 HAIL 1.00IN $$ GRIFFIN
585 WWUS53 KSGF 182303 SVSSGF SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE SPRINGFIELD MO 603 PM CDT SUN SEP 18 2011 MOC009-182314- /O.CAN.KSGF.TO.W.0066.000000T0000Z-110918T2315Z/ BARRY MO- 603 PM CDT SUN SEP 18 2011 ...THE TORNADO WARNING FOR SOUTH CENTRAL BARRY COUNTY IS CANCELLED... NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THAT THE STORM THAT PROMPTED THE WARNING HAD WEAKENED...THUS THE WARNING HAS BEEN CANCELLED. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 PM CDT SUNDAY EVENING FOR SOUTHWEST MISSOURI. LAT...LON 3666 9370 3654 9369 3657 9384 3664 9385 TIME...MOT...LOC 2304Z 264DEG 20KT 3659 9374 $$ GRIFFIN
The office that day
Everything else NWS Springfield, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 18, 12:29 AM CDT | Areal Flood Advisory | SGF | Barton, Cedar, Dade, Vernon | 6 hr |
| Sep 18, 5:02 PM CDT | Severe Thunderstorm Warning | SGF | Barry, McDonald | 43 min |
| Sep 18, 5:19 PM CDT | Tornado Warning | SGF | Barry | 26 min |
Nearby
Tornado Warnings in Missouri, 2011Every tornado warning in 2011Tornadoes 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.