Alert archive / Missouri / Severe Thunderstorm Warnings in 2017
Severe Thunderstorm Warning 33, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at Mar 7, 2017, 12:00 AM CST for Crawford County, Washington County, Missouri. It was in force for 60 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
- Mar 7, 2017, 12:00 AM CST (06:00 UTC)
- Expired
- Mar 7, 2017, 1:00 AM CST
- In force
- 60 min
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Crawford County, MO, Washington County, MO
The radar
The St Louis radar (KLSX), 84 km from the middle of the area, began a volume at 06:02 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 |
|---|---|---|---|
| Mar 6, 8:52 PM CST | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Springfield, MO (KSGF), launched 00:00Z, 6.0 hours before the alert went out and 263 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
- 629 J/kg
- Mixed-layer CIN
- -16 J/kg
- Mixed-layer LCL
- 1110 m above ground
- 0-6 km bulk shear
- 54 kt
- 0-1 km storm-relative helicity
- 319 m²/s²
- 0-3 km storm-relative helicity
- 542 m²/s²
- Significant tornado parameter
- 1.7
- Supercell composite
- 8.2
The text
As transmitted.
194
WUUS53 KLSX 070600
SVRLSX
MOC055-221-070700-
/O.NEW.KLSX.SV.W.0033.170307T0600Z-170307T0700Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service St Louis MO
1200 AM CST TUE MAR 7 2017
The National Weather Service in St Louis has issued a
* Severe Thunderstorm Warning for...
Crawford County in east central Missouri...
Washington County in east central Missouri...
* Until 100 AM CST.
* At 1200 AM CST, a severe thunderstorm was located near St. James,
moving east at 55 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Sullivan, Cuba, Potosi, Steelville, Bourbon, Anthonies Mill,
Leasburg, Richwoods, Old Mines, Cherryville, St. Cloud, Latty,
Shirley, Oak Hill and Rosati.
This includes Interstate 44 in Missouri between exits 203 and 218.
This also includes Onondaga Cave State Park.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
A tornado watch remains in effect until 400 AM CST for east central
Missouri.
LAT...LON 3782 9153 3821 9153 3821 9137 3820 9137
3820 9078 3818 9076 3781 9072
TIME...MOT...LOC 0600Z 262DEG 47KT 3801 9154
HAIL...0.75IN
WIND...60MPH
$$
Kanofsky2 follow-up statements
716
WWUS53 KLSX 070637
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
1237 AM CST TUE MAR 7 2017
MOC055-070646-
/O.CAN.KLSX.SV.W.0033.000000T0000Z-170307T0700Z/
Crawford MO-
1237 AM CST TUE MAR 7 2017
...THE SEVERE THUNDERSTORM WARNING FOR CRAWFORD COUNTY IS
CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
A tornado watch remains in effect until 400 AM CST for east central
Missouri.
LAT...LON 3782 9110 3820 9109 3820 9078 3818 9076
3781 9072
TIME...MOT...LOC 0636Z 262DEG 47KT 3808 9094
$$
MOC221-070700-
/O.CON.KLSX.SV.W.0033.000000T0000Z-170307T0700Z/
Washington MO-
1237 AM CST TUE MAR 7 2017
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 100 AM CST
FOR WASHINGTON COUNTY...
At 1236 AM CST, a severe thunderstorm was located 8 miles east of
Anthonies Mill, moving east at 55 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Potosi, Anthonies Mill, Old Mines, Richwoods, Latty and Shirley.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
A tornado watch remains in effect until 400 AM CST for east central
Missouri.
LAT...LON 3782 9110 3820 9109 3820 9078 3818 9076
3781 9072
TIME...MOT...LOC 0636Z 262DEG 47KT 3808 9094
HAIL...0.75IN
WIND...60MPH
$$
Kanofsky588
WWUS53 KLSX 070654
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
1254 AM CST TUE MAR 7 2017
MOC221-070704-
/O.EXP.KLSX.SV.W.0033.000000T0000Z-170307T0700Z/
Washington MO-
1254 AM CST TUE MAR 7 2017
...THE SEVERE THUNDERSTORM WARNING FOR WASHINGTON COUNTY WILL EXPIRE
AT 100 AM CST...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire.
A tornado watch remains in effect until 400 AM CST for east central
Missouri.
LAT...LON 3782 9110 3820 9109 3820 9078 3818 9076
3781 9072
TIME...MOT...LOC 0654Z 262DEG 47KT 3811 9069
$$
KanofskyThe office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 6, 9:33 PM CST | Severe Thunderstorm Warning | LSX | Knox, Lewis, Marion, Monroe, Ralls, Shelby | 57 min |
| Mar 6, 9:42 PM CST | Tornado Warning | LSX | Knox, Shelby | 28 min |
| Mar 6, 9:54 PM CST | Severe Thunderstorm Warning | LSX | Audrain, Boone, Callaway, Cole, Moniteau | 66 min |
| Mar 6, 10:01 PM CST | Tornado Warning | LSX | Boone, Moniteau | 29 min |
| Mar 6, 10:02 PM CST | Tornado Warning | LSX | Lewis, Marion, Shelby | 28 min |
| Mar 6, 10:20 PM CST | Severe Thunderstorm Warning | LSX | Lewis, Marion, Ralls | 55 min |
| Mar 6, 10:22 PM CST | Tornado Warning | LSX | Lewis, Marion | 30 min |
| Mar 6, 10:55 PM CST | Severe Thunderstorm Warning | LSX | Audrain, Callaway, Cole, Franklin, Gasconade, Lincoln and 5 more | 50 min |
| Mar 7, 12:08 AM CST | Severe Thunderstorm Warning | LSX | Saint Charles, Saint Louis | 52 min |
| Mar 7, 12:34 AM CST | Tornado Warning | LSX | Jefferson | 26 min |
| Mar 7, 12:48 AM CST | Severe Thunderstorm Warning | LSX | Jefferson, Saint Louis | 57 min |
| Mar 7, 4:00 AM CST | Red Flag Warning | LSX | Audrain, Boone, Callaway, Cole, Franklin, Gasconade and 13 more | 15 hr |
Nearby
Severe Thunderstorm Warnings in Missouri, 2017Every severe thunderstorm warning in 2017
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.