Johnston, IA Alerts

Tornado Watch issued April 15 at 3:41PM CDT until April 15 at 9:00PM CDT by NWS Des Moines IA

Headline

Tornado Watch issued April 15 at 3:41PM CDT until April 15 at 9:00PM CDT by NWS Des Moines IA

Description

THE NATIONAL WEATHER SERVICE HAS ISSUED TORNADO WATCH 122 UNTIL
9 PM CDT THIS EVENING WHICH REPLACES A PORTION OF SEVERE
THUNDERSTORM WATCH 119. THE NEW WATCH IS VALID FOR THE FOLLOWING
AREAS

IN IOWA THE NEW WATCH INCLUDES 5 COUNTIES

IN CENTRAL IOWA

JASPER MARSHALL POLK
POWESHIEK TAMA

THIS INCLUDES THE CITIES OF DES MOINES, DYSART, GLADBROOK,
GRINNELL, MARSHALLTOWN, NEWTON, TAMA, TOLEDO, AND TRAER.

* PRIMARY THREATS INCLUDE...

A COUPLE TORNADOES POSSIBLE.
SCATTERED LARGE HAIL AND ISOLATED VERY LARGE HAIL EVENTS TO 2.5
INCHES IN DIAMETER POSSIBLE.
SCATTERED DAMAGING WIND GUSTS TO 70 MPH POSSIBLE.

PROBABILITY TABLE:
PROB OF 2 OR MORE TORNADOES : 40%
PROB OF 1 OR MORE STRONG /EF2-EF5/ TORNADOES : 20%
PROB OF 10 OR MORE SEVERE WIND EVENTS : 50%
PROB OF 1 OR MORE WIND EVENTS >= 75 MPH : 20%
PROB OF 10 OR MORE SEVERE HAIL EVENTS : 50%
PROB OF 1 OR MORE HAIL EVENTS >= 2 INCHES : 40%
PROB OF 6 OR MORE COMBINED SEVERE HAIL/WIND EVENTS : 80%
MEAN STORM MOTION /MPH/ : E 40

Instructions

Additional Details

TypeAlert
PhenomenaTornado
SeverityWatch
Event CodeTOA
AreaJasper, IA; Marshall, IA; Polk, IA; Poweshiek, IA; Tama, IA
SentWednesday, April 15, 2026 3:41 PM CDT
ExpiresWednesday, April 15, 2026 9:00 PM CDT
SenderNWS Des Moines IA
Idurn:oid:2.49.0.1.840.0.a79060b497849d22d23763682ec84a915225bbb7.001.2
Past Alerts