Alert archive / Missouri / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 340, NWS Kansas City, MO
NWS Kansas City, MO issued this severe thunderstorm warning at Aug 22, 2011, 5:06 AM CDT for Atchison County, Nodaway County, Missouri. It was in force for 39 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 22, 2011, 5:06 AM CDT (10:06 UTC)
- Expired
- Aug 22, 2011, 5:45 AM CDT
- In force
- 39 min
- Issued by
- NWS Kansas City, MO
- Area
- Storm-based polygon
- Hail
- 2.5 in
- Wind
- 60.0 mph
Counties Atchison County, MO, Nodaway County, MO
The radar
The Omaha radar (KOAX), 138 km from the middle of the area, began a volume at 10:08 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 nearest sounding before it
Omaha, NE (KOAX), launched 00:00Z, 10.1 hours before the alert went out and 138 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
- 522 J/kg
- Mixed-layer CIN
- -142 J/kg
- Mixed-layer LCL
- 1127 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- 53 m²/s²
- 0-3 km storm-relative helicity
- 217 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 5.0
The text
As transmitted, in the capitals the NWS used until 2016.
136 WUUS53 KEAX 221006 SVREAX MOC005-147-221045- /O.NEW.KEAX.SV.W.0340.110822T1006Z-110822T1045Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO 506 AM CDT MON AUG 22 2011 THE NATIONAL WEATHER SERVICE IN PLEASANT HILL HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... EASTERN ATCHISON COUNTY IN NORTHWEST MISSOURI... NORTHWESTERN NODAWAY COUNTY IN NORTHWEST MISSOURI... * UNTIL 545 AM CDT * AT 503 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH...AND LARGE DESTRUCTIVE HAIL UP TO TENNIS BALL SIZE. THIS STORM WAS LOCATED 7 MILES WEST OF COIN...OR 15 MILES NORTH OF TARKIO...AND MOVING SOUTHEAST AT 35 MPH. * THE SEVERE THUNDERSTORM WILL AFFECT MAINLY RURAL AREAS OF EASTERN ATCHISON AND NORTHWESTERN NODAWAY COUNTIES...INCLUDING THE FOLLOWING LOCATIONS WESTBORO AND QUITMAN. 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. THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE IMMEDIATELY FOR LARGE DESTRUCTIVE HAIL CAPABLE OF PRODUCING SIGNIFICANT DAMAGE. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER... PREFERABLY INSIDE A STRONG BUILDING AND AWAY FROM WINDOWS. && LAT...LON 4058 9500 4035 9488 4027 9543 4058 9557 TIME...MOT...LOC 1006Z 333DEG 29KT 4063 9535 WIND...HAIL 60MPH 2.50IN $$ DB
2 follow-up statements
207 WWUS53 KEAX 221023 SVSEAX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO 523 AM CDT MON AUG 22 2011 MOC005-147-221045- /O.CON.KEAX.SV.W.0340.000000T0000Z-110822T1045Z/ NODAWAY MO-ATCHISON MO- 523 AM CDT MON AUG 22 2011 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR EASTERN ATCHISON AND NORTHWESTERN NODAWAY COUNTIES UNTIL 545 AM CDT... AT 521 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH...AND LARGE DESTRUCTIVE HAIL UP TO TENNIS BALL SIZE. THIS STORM WAS LOCATED 9 MILES SOUTH OF COIN...OR 9 MILES NORTHEAST OF TARKIO...MOVING SOUTHEAST AT 35 MPH. LOCATIONS IMPACTED INCLUDE... TARKIO...FAIRFAX...BURLINGTON JUNCTION...ELMO...CLEARMONT AND QUITMAN. PRECAUTIONARY/PREPAREDNESS ACTIONS... THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE IMMEDIATELY FOR LARGE DESTRUCTIVE HAIL CAPABLE OF PRODUCING SIGNIFICANT DAMAGE. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER... PREFERABLY INSIDE A STRONG BUILDING AND AWAY FROM WINDOWS. && LAT...LON 4058 9500 4035 9488 4027 9543 4058 9557 TIME...MOT...LOC 1023Z 331DEG 29KT 4052 9526 WIND...HAIL 60MPH 2.50IN $$ DB
636 WWUS53 KEAX 221034 SVSEAX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO 534 AM CDT MON AUG 22 2011 MOC005-147-221045- /O.CON.KEAX.SV.W.0340.000000T0000Z-110822T1045Z/ NODAWAY MO-ATCHISON MO- 534 AM CDT MON AUG 22 2011 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR EASTERN ATCHISON AND NORTHWESTERN NODAWAY COUNTIES UNTIL 545 AM CDT... AT 530 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH...AND GOLF BALL SIZE HAIL. THIS STORM WAS LOCATED 8 MILES WEST OF BURLINGTON JUNCTION...OR 9 MILES EAST OF TARKIO...MOVING SOUTHEAST AT 35 MPH. THE SEVERE THUNDERSTORM WILL BE NEAR... BURLINGTON JUNCTION AROUND 540 AM CDT. OTHER LOCATIONS IMPACTED BY THE SEVERE THUNDERSTORM INCLUDE QUITMAN. PRECAUTIONARY/PREPAREDNESS ACTIONS... THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE IMMEDIATELY FOR LARGE DESTRUCTIVE HAIL CAPABLE OF PRODUCING SIGNIFICANT DAMAGE. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER... PREFERABLY INSIDE A STRONG BUILDING AND AWAY FROM WINDOWS. && LAT...LON 4058 9500 4035 9488 4027 9543 4058 9557 TIME...MOT...LOC 1034Z 328DEG 30KT 4044 9519 WIND...HAIL 60MPH 1.75IN $$ DB
The office that day
Everything else NWS Kansas City, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 22, 5:43 AM CDT | Severe Thunderstorm Warning | EAX | Atchison, Holt, Nodaway | 47 min |
| Aug 22, 6:04 AM CDT | Special Weather Statement | EAX | Atchison | 41 min |
| Aug 22, 6:12 AM CDT | Severe Thunderstorm Warning | EAX | Andrew, Holt, Nodaway | 33 min |
| Aug 22, 6:45 AM CDT | Special Weather Statement | EAX | Andrew | 45 min |
| Aug 22, 7:20 AM CDT | Special Weather Statement | EAX | Clinton | 25 min |
| Aug 22, 7:43 AM CDT | Special Weather Statement | EAX | Clay, Clinton | 32 min |
| Aug 22, 8:09 AM CDT | Special Weather Statement | EAX | Clay, Ray | 36 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.