Alert archive / Missouri / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 310, NWS Kansas City, MO
NWS Kansas City, MO issued this severe thunderstorm warning at Aug 18, 2011, 7:51 PM CDT for 6 counties in Missouri. It was in force for 24 min. 4 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
- Aug 18, 2011, 7:51 PM CDT (00:51 UTC)
- Expired
- Aug 18, 2011, 8:15 PM CDT
- In force
- 24 min
- Issued by
- NWS Kansas City, MO
- Area
- Storm-based polygon
- Hail
- 1.75 in
- Wind
- 80.0 mph
Counties Andrew County, MO, Daviess County, MO, DeKalb County, MO, Gentry County, MO, Harrison County, MO, Nodaway County, MO
The radar
The Pleasant Hill radar (KEAX), 144 km from the middle of the area, began a volume at 00:41 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 |
|---|---|---|---|
| Aug 18, 7:53 PM CDT | HAIL 1 | 5 N Stanberry, MO | |
| Aug 18, 7:54 PM CDT | TSTM WND DMG | 2 W Stanberry, MO | BARN DESTROYED |
| Aug 18, 7:59 PM CDT | TSTM WND GST 65 | Stanberry, MO | |
| Aug 18, 8:12 PM CDT | TSTM WND DMG | Mcfall, MO | POWER POLES SNAPPED OFF |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
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 18, 6:38 PM CDT | Tornado Watch | SPC | 5 hr |
The nearest sounding before it
Topeka, KS (KTOP), launched 00:00Z, 0.9 hours before the alert went out and 167 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
- 3749 J/kg
- Mixed-layer CIN
- -43 J/kg
- Mixed-layer LCL
- 1481 m above ground
- 0-6 km bulk shear
- 46 kt
- 0-1 km storm-relative helicity
- 22 m²/s²
- 0-3 km storm-relative helicity
- 193 m²/s²
- Significant tornado parameter
- 2.3
- Supercell composite
- 17.9
The text
As transmitted, in the capitals the NWS used until 2016.
472 WUUS53 KEAX 190051 SVREAX MOC003-061-063-075-081-147-190115- /O.NEW.KEAX.SV.W.0310.110819T0051Z-110819T0115Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO 751 PM CDT THU AUG 18 2011 THE NATIONAL WEATHER SERVICE IN PLEASANT HILL HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTHEASTERN ANDREW COUNTY IN NORTHWEST MISSOURI... NORTHWESTERN DAVIESS COUNTY IN NORTH CENTRAL MISSOURI... DEKALB COUNTY IN NORTHWEST MISSOURI... GENTRY COUNTY IN NORTHWEST MISSOURI... SOUTHWESTERN HARRISON COUNTY IN NORTH CENTRAL MISSOURI... SOUTHEASTERN NODAWAY COUNTY IN NORTHWEST MISSOURI... * UNTIL 815 PM CDT * AT 748 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DESTRUCTIVE WINDS IN EXCESS OF 80 MPH...AND GOLF BALL SIZE HAIL. THIS STORM WAS LOCATED NEAR STANBERRY...AND MOVING SOUTHEAST AT 45 MPH. * LOCATIONS IMPACTED INCLUDE... ALBANY...MAYSVILLE...KING CITY...UNION STAR...PATTONSBURG... DARLINGTON...FORD CITY...MCFALL...FAIRPORT...AMITY...SANTA ROSA AND WEATHERBY. AT 741 PM...TRAINED WEATHER SPOTTERS REPORTED GOLF BALL SIZE HAIL AND 70 MPH WINDS 3 MILES EAST OF ARKOE. A TORNADO WATCH REMAINS IN EFFECT UNTIL MIDNIGHT CDT FRIDAY MORNING FOR NORTHWESTERN MISSOURI. PRECAUTIONARY/PREPAREDNESS ACTIONS... SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE INTO AREAS WHERE WATER COVERS THE ROAD. && LAT...LON 4014 9398 3976 9440 4011 9479 4039 9445 TIME...MOT...LOC 0050Z 309DEG 40KT 4016 9453 WIND...HAIL 80MPH 1.75IN $$ DEROCHE
2 follow-up statements
942 WWUS53 KEAX 190059 SVSEAX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO 759 PM CDT THU AUG 18 2011 MOC003-061-063-075-081-147-190115- /O.CON.KEAX.SV.W.0310.000000T0000Z-110819T0115Z/ DAVIESS MO-DEKALB MO-GENTRY MO-HARRISON MO-NODAWAY MO-ANDREW MO- 759 PM CDT THU AUG 18 2011 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHEASTERN ANDREW...SOUTHEASTERN NODAWAY...SOUTHWESTERN HARRISON...GENTRY... DEKALB AND NORTHWESTERN DAVIESS COUNTIES UNTIL 815 PM CDT... AT 753 PM CDT...TRAINED WEATHER SPOTTERS REPORTED A SEVERE THUNDERSTORM PRODUCING EXTREME DAMAGING WINDS IN EXCESS OF 100 MPH... AND GOLF BALL SIZE HAIL. THIS STORM WAS LOCATED 6 MILES SOUTH OF STANBERRY...MOVING SOUTHEAST AT 45 MPH. AT 748 PM...AMATEUR RADIO OPERATORS ESTIMATED STRONG DAMAGING WINDS OF 90 MPH ALONG HWY 136 AT THE NODAWAY AND GENTRY COUNTY LINE. EXTREME TORNADO LIKE WINDS ARE OCCURRING WITH THIS STORM. TAKE COVER NOW IF YOU ARE IN THE PATH!!! LOCATIONS IMPACTED INCLUDE... MAYSVILLE...PATTONSBURG...MCFALL...FAIRPORT...AMITY...SANTA ROSA AND WEATHERBY. THIS WILL IMPACT I-35 BETWEEN MILE MARKERS 75 AND 85. PRECAUTIONARY/PREPAREDNESS ACTIONS... A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. TORNADOES CAN DEVELOP QUICKLY FROM SEVERE THUNDERSTORMS. ALTHOUGH NOT IMMEDIATELY LIKELY...IF A TORNADO IS SPOTTED ACT QUICKLY AND MOVE TO A PLACE OF SAFETY INSIDE A STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM. SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE INTO AREAS WHERE WATER COVERS THE ROAD. THIS IS AN EXTREMELY DANGEROUS SITUATION WITH TORNADO LIKE WIND SPEEDS EXPECTED. MOBILE HOMES AND HIGH PROFILE VEHICLES ARE ESPECIALLY SUSCEPTIBLE TO WINDS OF THIS MAGNITUDE AND MAY BE OVERTURNED. MOVE IMMEDIATELY TO A STURDY BUILDING AND STAY AWAY FROM WINDOWS. && LAT...LON 4014 9398 3976 9440 4011 9479 4039 9445 TIME...MOT...LOC 0057Z 309DEG 40KT 4011 9445 WIND...HAIL 100MPH 1.75IN $$ DEROCHE
383 WWUS53 KEAX 190108 SVSEAX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO 808 PM CDT THU AUG 18 2011 MOC003-061-063-075-081-147-190115- /O.CON.KEAX.SV.W.0310.000000T0000Z-110819T0115Z/ DAVIESS MO-DEKALB MO-GENTRY MO-HARRISON MO-NODAWAY MO-ANDREW MO- 808 PM CDT THU AUG 18 2011 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHEASTERN ANDREW...SOUTHEASTERN NODAWAY...SOUTHWESTERN HARRISON...GENTRY... DEKALB AND NORTHWESTERN DAVIESS COUNTIES UNTIL 815 PM CDT... AT 802 PM CDT...TRAINED WEATHER SPOTTERS REPORTED A SEVERE THUNDERSTORM PRODUCING EXTREME DAMAGING WINDS IN EXCESS OF 100 MPH... AND GOLF BALL SIZE HAIL. THIS STORM WAS LOCATED 7 MILES EAST OF KING CITY...OR 12 MILES SOUTHEAST OF STANBERRY...MOVING SOUTHEAST AT 45 MPH. LOCATIONS IMPACTED INCLUDE... MAYSVILLE...PATTONSBURG...MCFALL...FAIRPORT...AMITY...SANTA ROSA AND WEATHERBY. AT 748 PM...AMATEUR RADIO OPERATORS ESTIMATED STRONG DAMAGING WINDS OF 90 MPH ALONG HWY 136 AT THE NODAWAY AND GENTRY COUNTY LINE. TORNADO LIKE WINDS ARE OCCURRING WITH THIS STORM. TAKE COVER NOW IF YOU ARE IN THE PATH!!! IN ADDITION...AT 754 PM...AMATEUR RADIO OPERATORS REPORTED STRAIGHT LINE WIND DAMAGE 2 MILES WEST OF STANBERRY. AT 759 PM...LOCAL LAW ENFORCEMENT REPORTED A 65 MPH WIND GUST SOUTH OF TANBERRY. THIS WILL IMPACT I-35 BETWEEN MILE MARKERS 75 AND 85. PRECAUTIONARY/PREPAREDNESS ACTIONS... A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. TORNADOES CAN DEVELOP QUICKLY FROM SEVERE THUNDERSTORMS. ALTHOUGH NOT IMMEDIATELY LIKELY...IF A TORNADO IS SPOTTED ACT QUICKLY AND MOVE TO A PLACE OF SAFETY INSIDE A STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM. SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE INTO AREAS WHERE WATER COVERS THE ROAD. THIS IS AN EXTREMELY DANGEROUS SITUATION WITH TORNADO LIKE WIND SPEEDS EXPECTED. MOBILE HOMES AND HIGH PROFILE VEHICLES ARE ESPECIALLY SUSCEPTIBLE TO WINDS OF THIS MAGNITUDE AND MAY BE OVERTURNED. MOVE IMMEDIATELY TO A STURDY BUILDING AND STAY AWAY FROM WINDOWS. && LAT...LON 4014 9398 3976 9440 4008 9475 4039 9445 TIME...MOT...LOC 0107Z 309DEG 40KT 4004 9434 WIND...HAIL 100MPH 1.75IN $$ DEROCHE
The office that day
Everything else NWS Kansas City, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 18, 7:01 PM CDT | Severe Thunderstorm Warning | EAX | Nodaway | 29 min |
| Aug 18, 7:28 PM CDT | Severe Thunderstorm Warning | EAX | Andrew, Gentry, Nodaway | 32 min |
| Aug 18, 7:31 PM CDT | Special Weather Statement | EAX | Harrison, Worth | 29 min |
| Aug 18, 8:14 PM CDT | Severe Thunderstorm Warning | EAX | Caldwell, Clinton, Daviess, DeKalb, Gentry, Grundy and 3 more | 46 min |
| Aug 18, 8:24 PM CDT | Severe Thunderstorm Warning | EAX | Atchison, Holt, Nodaway | 51 min |
| Aug 18, 9:00 PM CDT | Special Weather Statement | EAX | Caldwell | 30 min |
| Aug 18, 9:07 PM CDT | Severe Thunderstorm Warning | EAX | Andrew, Atchison, Gentry, Holt, Nodaway, Worth | 38 min |
| Aug 18, 9:32 PM CDT | Severe Thunderstorm Warning | EAX | Andrew, Buchanan, Clinton, DeKalb, Gentry, Harrison and 3 more | 43 min |
| Aug 18, 10:15 PM CDT | Severe Thunderstorm Warning | EAX | Andrew, Buchanan, Clinton, Daviess, DeKalb, Gentry and 2 more | 45 min |
| Aug 18, 10:33 PM CDT | Severe Thunderstorm Warning | EAX | Buchanan, Clay, Clinton, Platte | 42 min |
| Aug 18, 10:44 PM CDT | Severe Thunderstorm Warning | EAX | Caldwell, Clay, Clinton, Daviess, DeKalb, Gentry and 1 more | 46 min |
| Aug 18, 10:57 PM CDT | Severe Thunderstorm Warning | EAX | Cass, Clay, Jackson, Platte | 33 min |
| Aug 18, 11:13 PM CDT | Severe Thunderstorm Warning | EAX | Clay, Clinton, Platte | 32 min |
| Aug 18, 11:17 PM CDT | Severe Thunderstorm Warning | EAX | Caldwell, Carroll, Clay, Clinton, Daviess, Jackson and 3 more | 43 min |
| Aug 18, 11:20 PM CDT | Areal Flood Advisory | EAX | Clay, Platte | 6 hr |
| Aug 18, 11:30 PM CDT | Severe Thunderstorm Warning | EAX | Cass, Clay, Jackson, Johnson, Lafayette | 45 min |
| Aug 18, 11:53 PM CDT | Severe Thunderstorm Warning | EAX | Bates, Cass, Henry, Jackson, Johnson, Lafayette | 37 min |
| Aug 18, 11:57 PM CDT | Severe Thunderstorm Warning | EAX | Caldwell, Carroll, Chariton, Clay, Jackson, Johnson and 4 more | 48 min |
| Aug 19, 12:09 AM CDT | Areal Flood Advisory | EAX | Jackson | 6 hr |
| Aug 19, 12:19 AM CDT | Severe Thunderstorm Warning | EAX | Bates, Cass, Henry, Johnson | 56 min |
| Aug 19, 12:31 AM CDT | Severe Thunderstorm Warning | EAX | Carroll, Cooper, Howard, Johnson, Lafayette, Pettis and 2 more | 59 min |
| Aug 19, 12:33 AM CDT | Severe Thunderstorm Warning | EAX | Cass, Johnson | 42 min |
| Aug 19, 12:42 AM CDT | Areal Flood Advisory | EAX | Bates, Cass, Cooper, Henry, Johnson, Pettis | 5 hr |
| Aug 19, 12:59 AM CDT | Severe Thunderstorm Warning | EAX | Henry, Pettis | 46 min |
| Aug 19, 1:16 AM CDT | Special Weather Statement | EAX | Bates | 44 min |
| Aug 19, 1:19 AM CDT | Severe Thunderstorm Warning | EAX | Cooper, Howard, Johnson, Pettis, Saline | 26 min |
| Aug 19, 1:24 AM CDT | Severe Thunderstorm Warning | EAX | Bates | 36 min |
| Aug 19, 1:44 AM CDT | Severe Thunderstorm Warning | EAX | Cooper, Pettis | 31 min |
| Aug 19, 8:46 AM CDT | River Flood Warning | EAX | Atchison, Holt | 7 hr |
| Aug 19, 11:47 AM CDT | River Flood Warning | EAX | Cooper | 22 hr |
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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.