National Weather Service Raw Text Product

916 
NOUS43 KDVN 111647
PNSDVN
IAZ040>042-051>054-063>068-076>078-087>089-098-099-ILZ001-002-007-
009-015>018-024>026-034-035-MOZ009-010-120500-

Public Information Statement
National Weather Service Quad Cities IA/IL
1147 AM CDT Tue Apr 11 2023

...NWS Damage Survey for 03/31/2023 Tornado Event - Update 13...

.Martinsburg 1 Southeast Tornado...

Rating:                 EF3
Estimated Peak Wind:    150 mph
Path Length /statute/:  17.31 miles
Path Width /maximum/:   1000 yards
Fatalities:             0
Injuries:               0

Start Date:             03/31/2023
Start Time:             03:50 PM CDT
Start Location:         1 SE Martinsburg / Keokuk County / IA
Start Lat/Lon:          41.1628 / -92.233

End Date:               03/31/2023
End Time:               04:15 PM CDT
End Location:           3 ESE Harper / Keokuk County / IA
End Lat/Lon:            41.3412 / -92.0022

Survey Summary:
A large violent tornado developed in Wapello County and tracked
into Keokuk County about 1 mile southeast of Martinsburg. The
tornado continued to the northeast before lifting just north of
Highway 92, southwest of Keota. The tornado produced EF-3 damage
to a house northeast of Martinsburg, and caused additional
significant damage to farmsteads and outbuildings.

&&

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 event and publication in
NWS Storm Data.


$$