Oregon Severe Watches & Warnings NOAA Weather Radio

Watches & Warnings

Severe Thunderstorm Watch
Issued: 1:13 PM CDT Aug. 20, 2018 – National Weather Service

Severe Thunderstorm Watch 344 remains in effect until 800 PM CDT

MO
. Missouri counties included are

Bollinger Butler Cape Girardeau
Carter Crawford Dent
Dunklin Franklin Howell
Iron Jefferson Madison
Mississippi New Madrid Oregon
Pemiscot Perry Reynolds
Ripley St. Charles Ste. Genevieve
St. Francois St. Louis Scott
Shannon Stoddard Washington
Wayne


Missouri independent cities included are

St. Louis city


Public Information Statement
Issued: 1:33 PM CDT Aug. 20, 2018 – National Weather Service


... NWS damage survey for 08/19/2018 tornado event #2...

... Tornado extending from 7 S Aurora to 1.5 SW Marionville...

.Aurora tornado...

Rating: EF-1
estimated peak wind: 90 mph
path length /statute/: 9 miles
path width /maximum/: 100 yards
fatalities: 0
injuries: 0

Start date: 08/19/2018
start time: 6:36 PM CDT
start location: 7 S Aurora MO
start lat/lon: 36.8779/-93.7385

End date: 08/19/2018
end time: 7:01 PM CDT
end location: 1.5 SW Marionville MO
end lat/lon: 36.9907/-93.6641

Survey_summary:

EF-1 tornado starting just southwest of Hwy z and 39
approximately 7 miles south of Aurora and ending 1.5
miles southwest of Marionville. Max winds estimated
90mph, width 100 yards and distance 9 miles. Numerous
outbuildings damaged, trees uprooted, some
powerlines down, and two Mobile homes with partial
roofs removed. Started at 6:36 PM and ended around
7:01 PM.

Ef scale: the Enhanced Fujita scale classifies
tornadoes into the following categories.

EF0... weak... ... 65 to 85 mph
EF1... weak... ... 86 to 110 mph
EF2... strong... .111 to 135 mph
EF3... strong... .136 to 165 mph
EF4... violent... 166 to 200 mph
EF5... violent... >200 mph

Note:
the information in this statement is preliminary and subject to
change pending final review of the events and publication in
NWS storm data.


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