Alert archive / Missouri / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 95, NWS Kansas City, MO
NWS Kansas City, MO issued this severe thunderstorm warning at Aug 8, 2012, 6:56 PM CDT for 4 counties in Missouri. It was in force for 34 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 8, 2012, 6:56 PM CDT (23:56 UTC)
- Expired
- Aug 8, 2012, 7:30 PM CDT
- In force
- 34 min
- Issued by
- NWS Kansas City, MO
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 70.0 mph
Counties Andrew County, MO, Buchanan County, MO, Clinton County, MO, DeKalb County, MO
The radar
The Pleasant Hill radar (KEAX), 111 km from the middle of the area, began a volume at 23:58 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 8, 4:53 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Topeka, KS (KFOE), launched 12:00Z, 11.9 hours before the alert went out and 113 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
- 597 J/kg
- Mixed-layer CIN
- -298 J/kg
- Mixed-layer LCL
- 2032 m above ground
- 0-6 km bulk shear
- 13 kt
- 0-1 km storm-relative helicity
- 53 m²/s²
- 0-3 km storm-relative helicity
- 34 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
433
WUUS53 KEAX 082356
SVREAX
MOC003-021-049-063-090030-
/O.NEW.KEAX.SV.W.0095.120808T2356Z-120809T0030Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
656 PM CDT WED AUG 8 2012
THE NATIONAL WEATHER SERVICE IN PLEASANT HILL HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
SOUTHEASTERN ANDREW COUNTY IN NORTHWEST MISSOURI...
NORTHERN BUCHANAN COUNTY IN NORTHWEST MISSOURI...
CLINTON COUNTY IN NORTHWEST MISSOURI...
SOUTHERN DEKALB COUNTY IN NORTHWEST MISSOURI...
* UNTIL 730 PM CDT
* AT 654 PM CDT...A LINE OF SEVERE THUNDERSTORMS WAS LOCATED ALONG A
LINE EXTENDING FROM 7 MILES SOUTHWEST OF UNION STAR TO 6 MILES
SOUTHWEST OF CLARKSDALE TO AGENCY...AND MOVING SOUTHEAST AT 40
MPH. AT 639 PM...OFFICIAL WEATHER INSTRUMENTATION MEASURED A 63
MPH WIND GUST IN ST JOSEPH.
HAZARD...70 MPH WIND GUSTS.
SOURCE...RADAR INDICATED.
IMPACT...TREE BRANCHES UP TO THREE INCHES IN DIAMETER BROKEN.
POSSIBLE MINOR DAMAGE TO SHINGLE ROOFS AND METAL
OUTBUILDINGS.
* LOCATIONS IMPACTED INCLUDE...
GOWER...PLATTSBURG...CLARKSDALE...STEWARTSVILLE...OSBORN...AMITY
AND TURNEY.
THIS WILL IMPACT THE FOLLOWING INTERSTATES...
I-29 BETWEEN MILE MARKERS 39 AND 53.
I-229 BETWEEN MILE MARKERS 0 AND 7.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.
&&
LAT...LON 3973 9491 3973 9488 3973 9487 3976 9486
3977 9487 3982 9484 3992 9479 3987 9428
3962 9426 3947 9441 3969 9494
TIME...MOT...LOC 2356Z 295DEG 35KT 3989 9466 3974 9459
3960 9472
HAIL...<.75IN
WIND...70 MPH
$$
DEROCHE2 follow-up statements
964
WWUS53 KEAX 090008
SVSEAX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
708 PM CDT WED AUG 8 2012
MOC003-021-049-063-090030-
/O.CON.KEAX.SV.W.0095.000000T0000Z-120809T0030Z/
BUCHANAN MO-CLINTON MO-DEKALB MO-ANDREW MO-
708 PM CDT WED AUG 8 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHEASTERN
ANDREW...SOUTHERN DEKALB...CLINTON AND NORTHEASTERN BUCHANAN COUNTIES
UNTIL 730 PM CDT...
AT 705 PM CDT...A LINE OF SEVERE THUNDERSTORMS WAS LOCATED ALONG A
LINE EXTENDING FROM CLARKSDALE TO STEWARTSVILLE TO GOWER...AND MOVING
SOUTHEAST AT 40 MPH.
HAZARD...60 MPH WIND GUSTS.
SOURCE...RADAR INDICATED.
IMPACT...MINOR TREE DAMAGE...WITH LIMBS UP TO ONE INCH IN DIAMETER
BROKEN.
LOCATIONS IMPACTED INCLUDE...
PLATTSBURG...OSBORN...AMITY AND TURNEY.
THIS WILL IMPACT
I-29 BETWEEN MILE MARKERS 38 AND 42.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.
&&
LAT...LON 3975 9473 3991 9472 3987 9428 3962 9426
3947 9441 3965 9484
TIME...MOT...LOC 0008Z 295DEG 35KT 3984 9452 3969 9445
3955 9458
HAIL...<.75IN
WIND...60 MPH
$$
DEROCHE267
WWUS53 KEAX 090024
SVSEAX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
724 PM CDT WED AUG 8 2012
MOC003-021-049-063-090034-
/O.EXP.KEAX.SV.W.0095.000000T0000Z-120809T0030Z/
BUCHANAN MO-CLINTON MO-DEKALB MO-ANDREW MO-
724 PM CDT WED AUG 8 2012
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN ANDREW...SOUTHERN
DEKALB...CLINTON AND NORTHEASTERN BUCHANAN COUNTIES WILL EXPIRE AT
730 PM CDT...
THE LINE OF STORMS WHICH PROMPTED THE WARNING HAS WEAKENED BELOW
SEVERE LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR
PROPERTY.
ADDITIONAL STRONG THUNDERSTORMS ARE STILL POSSIBLE...AND A SEVERE
THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1AM.
LAT...LON 3975 9473 3991 9472 3987 9428 3962 9426
3947 9441 3965 9484
TIME...MOT...LOC 0024Z 295DEG 35KT 3977 9434 3962 9427
3948 9440
$$
DEROCHEThe office that day
Everything else NWS Kansas City, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 8, 6:09 PM CDT | Severe Thunderstorm Warning | EAX | Andrew, Holt | 36 min |
| Aug 8, 6:18 PM CDT | Severe Thunderstorm Warning | EAX | Buchanan, Platte | 27 min |
| Aug 8, 6:36 PM CDT | Severe Thunderstorm Warning | EAX | Andrew, Buchanan | 24 min |
| Aug 8, 6:45 PM CDT | Severe Thunderstorm Warning | EAX | Buchanan, Platte | 30 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.