Alert archive / Missouri / Special Weather Statements in 2018
Special Weather Statement, NWS St. Louis, MO
NWS St. Louis, MO issued this special weather statement at Jun 20, 2018, 5:21 PM CDT for Audrain County, Callaway County, Missouri. It was in force for 54 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
- Jun 20, 2018, 5:21 PM CDT (22:21 UTC)
- Expired
- Jun 20, 2018, 6:15 PM CDT
- In force
- 54 min
- Issued by
- NWS St. Louis, MO
Counties Audrain County, MO, Callaway County, MO
The radar
The St Louis radar (KLSX), 113 km from the middle of the area, began a volume at 22:21 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
Springfield, MO (KSGF), launched 12:00Z, 10.4 hours before the alert went out and 292 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
- 336 J/kg
- Mixed-layer CIN
- -55 J/kg
- Mixed-layer LCL
- 1026 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- 83 m²/s²
- 0-3 km storm-relative helicity
- 36 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
586
WWUS83 KLSX 202221
SPSLSX
Special Weather Statement
National Weather Service St Louis MO
521 PM CDT WED JUN 20 2018
MOZ041-042-050-202315-
Audrain MO-Boone MO-Callaway MO-
521 PM CDT WED JUN 20 2018
...SIGNIFICANT WEATHER ADVISORY FOR EAST CENTRAL BOONE...WESTERN
AUDRAIN AND NORTHERN CALLAWAY COUNTIES UNTIL 615 PM CDT...
At 520 PM CDT, Doppler radar was tracking a strong thunderstorm 7
miles northwest of Fulton, moving northeast at 30 mph.
Wind gusts up to 50 mph will be possible with this storm.
Locations impacted include...
Columbia, Fulton, Mexico, Auxvasse, Martinsburg, Murry, Shamrock,
Williamsburg, Rush Hill, Kingdom City, Benton City, Vandiver,
Carrington, Hatton and Thompson.
This includes Interstate 70 in Missouri between exits 133 and 161.
LAT...LON 3902 9229 3934 9182 3922 9163 3915 9163
3894 9164 3871 9203
TIME...MOT...LOC 2220Z 234DEG 25KT 3892 9207
$$
MaplesThe office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 19, 7:12 PM CDT | Severe Thunderstorm Warning | LSX | Saint Louis, City of Saint Louis | 48 min |
| Jun 20, 2:48 AM CDT | Areal Flood Advisory | LSX | Franklin, Gasconade, Montgomery, Saint Charles, Warren | 7 hr |
| Jun 20, 4:05 PM CDT | Special Weather Statement | LSX | Lewis | 40 min |
| Jun 20, 5:09 PM CDT | Special Weather Statement | LSX | Marion, Ralls | 66 min |
| Jun 20, 6:44 PM CDT | Special Weather Statement | LSX | Pike | 46 min |
| Jun 19, 7:21 PM CDT | Special Weather Statement | LSX | Fayette | 24 min |
| Jun 19, 8:12 PM CDT | Flash Flood Warning | LSX | Fayette | 6 hr |
| Jun 20, 2:02 AM CDT | Areal Flood Warning | LSX | Fayette | 9 hr |
| Jun 20, 6:16 PM CDT | Special Weather Statement | LSX | Adams, Brown, Pike | 59 min |
Nearby
Special Weather Statements in Missouri, 2018Every special weather statement in 2018
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.