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Home Return to list Severe Thunderstorm Warning 0189 Issued by the Omaha / Valley Forecast Office
Action: New Issued At: 2026-05-18 19:29:32
427
WUUS53 KOAX 190029
SVROAX
IAC085-165-190115-
/O.NEW.KOAX.SV.W.0189.260519T0029Z-260519T0115Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Omaha/Valley Nebraska
729 PM CDT Mon May 18 2026
The National Weather Service in Omaha has issued a
* Severe Thunderstorm Warning for...
Southeastern Harrison County in southwestern Iowa...
Central Shelby County in southwestern Iowa...
* Until 815 PM CDT.
* At 728 PM CDT, a severe thunderstorm was located 3 miles west of
Persia, or 16 miles west of Harlan, moving northeast at 55 mph.
HAZARD...Quarter size hail.
SOURCE...Radar indicated.
IMPACT...Damage to vehicles is expected.
* This severe thunderstorm will be near...
Harlan around 740 PM CDT.
Other locations in the path of this severe thunderstorm include
Irwin.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4150 9569 4151 9574 4161 9577 4187 9516
4186 9510 4164 9510
TIME...MOT...LOC 0028Z 244DEG 47KT 4157 9563
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...<50 MPH
$$
CA
Action: Continued Issued At: 2026-05-18 19:42:03
690
WWUS53 KOAX 190041
SVSOAX
Severe Weather Statement
National Weather Service Omaha/Valley Nebraska
741 PM CDT Mon May 18 2026
IAC085-190051-
/O.CAN.KOAX.SV.W.0189.000000T0000Z-260519T0115Z/
Harrison IA-
741 PM CDT Mon May 18 2026
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN HARRISON COUNTY
IS CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
&&
LAT...LON 4163 9511 4155 9546 4156 9550 4160 9550
4160 9552 4166 9554 4185 9510 4164 9510
TIME...MOT...LOC 0041Z 244DEG 47KT 4165 9541
$$
IAC165-190115-
/O.CON.KOAX.SV.W.0189.000000T0000Z-260519T0115Z/
Shelby IA-
741 PM CDT Mon May 18 2026
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 815 PM CDT
FOR CENTRAL SHELBY COUNTY...
At 741 PM CDT, a severe thunderstorm was located 4 miles west of
Harlan, moving northeast at 55 mph.
HAZARD...Quarter size hail.
SOURCE...Radar indicated.
IMPACT...Damage to vehicles is expected.
This severe storm will be near...
Harlan around 745 PM CDT.
Other locations in the path of this severe thunderstorm include
Irwin.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4163 9511 4155 9546 4156 9550 4160 9550
4160 9552 4166 9554 4185 9510 4164 9510
TIME...MOT...LOC 0041Z 244DEG 47KT 4165 9541
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...<50 MPH
$$
CA
Action: Cancelled Issued At: 2026-05-18 19:42:03
690
WWUS53 KOAX 190041
SVSOAX
Severe Weather Statement
National Weather Service Omaha/Valley Nebraska
741 PM CDT Mon May 18 2026
IAC085-190051-
/O.CAN.KOAX.SV.W.0189.000000T0000Z-260519T0115Z/
Harrison IA-
741 PM CDT Mon May 18 2026
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN HARRISON COUNTY
IS CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
&&
LAT...LON 4163 9511 4155 9546 4156 9550 4160 9550
4160 9552 4166 9554 4185 9510 4164 9510
TIME...MOT...LOC 0041Z 244DEG 47KT 4165 9541
$$
IAC165-190115-
/O.CON.KOAX.SV.W.0189.000000T0000Z-260519T0115Z/
Shelby IA-
741 PM CDT Mon May 18 2026
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 815 PM CDT
FOR CENTRAL SHELBY COUNTY...
At 741 PM CDT, a severe thunderstorm was located 4 miles west of
Harlan, moving northeast at 55 mph.
HAZARD...Quarter size hail.
SOURCE...Radar indicated.
IMPACT...Damage to vehicles is expected.
This severe storm will be near...
Harlan around 745 PM CDT.
Other locations in the path of this severe thunderstorm include
Irwin.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4163 9511 4155 9546 4156 9550 4160 9550
4160 9552 4166 9554 4185 9510 4164 9510
TIME...MOT...LOC 0041Z 244DEG 47KT 4165 9541
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...<50 MPH
$$
CA
Action: Cancelled Issued At: 2026-05-18 19:56:18
097
WWUS53 KOAX 190055
SVSOAX
Severe Weather Statement
National Weather Service Omaha/Valley Nebraska
755 PM CDT Mon May 18 2026
IAC165-190105-
/O.CAN.KOAX.SV.W.0189.000000T0000Z-260519T0115Z/
Shelby IA-
755 PM CDT Mon May 18 2026
...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL SHELBY COUNTY IS
CANCELLED...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning has been cancelled.
&&
LAT...LON 4163 9511 4155 9546 4156 9550 4160 9550
4160 9552 4166 9554 4185 9510 4164 9510
TIME...MOT...LOC 0054Z 244DEG 47KT 4173 9518
$$
CA
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