Alert archive / Idaho / Flash Flood Warnings in 2023

Flash Flood Warning 23, NWS Pocatello, ID

May 31, 2023Cassia County, Idaho

NWS Pocatello, ID issued this flash flood warning at May 31, 2023, 4:57 PM MDT for Cassia County, Idaho. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: May 31, 2023, 4:57 PM MDT (22:57 UTC)
Expired: May 31, 2023, 7:52 PM MDT
In force: 3 hr
Issued by: NWS Pocatello, ID
Area: Storm-based polygon
Flood severity: None

County Cassia County, ID

The radar

The Pocatello radar (KSFX), 118 km from the middle of the area, began a volume at 23:00 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.

What forecasters said that day

The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Pocatello, ID wrote its last area forecast discussion before this flash flood warning went out at May 31, 2:01 PM MDT, 2 hours 56 minutes earlier.

Area forecast discussion, May 31, 2:01 PM MDT, 2 hours 56 minutes before

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In the hours before

Special weather statement, May 31, 2:08 PM MDT, 2 hours 49 minutes before

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Local storm report, May 31, 2:21 PM MDT, 2 hours 36 minutes before

Preliminary Local Storm Report
National Weather Service Pocatello ID
221 PM MDT Wed May 31 2023

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0220 PM     Hail             1 NNE Ketchum           43.70N 114.37W
05/31/2023  M0.70 inch       Blaine             ID   Public

            Heavy rainfall also reported.

&&

CM

Special weather statement, May 31, 4:02 PM MDT, 55 minutes before

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Special weather statement, May 31, 4:02 PM MDT, 55 minutes before

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Special weather statement, May 31, 4:36 PM MDT, 21 minutes before

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Special weather statement, May 31, 4:44 PM MDT, 13 minutes before

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The office that day

Everything else NWS Pocatello, ID issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 30, 6:15 PM MDT	Flash Flood Warning	PIH	Bannock, Power	3 hr
May 30, 6:16 PM MDT	Special Weather Statement	PIH	Minidoka	89 min
May 30, 6:23 PM MDT	Special Weather Statement	PIH	Bingham	52 min
May 30, 7:12 PM MDT	Special Weather Statement	PIH	Bingham	63 min
May 31, 11:55 AM MDT	Flash Flood Watch	PIH	Bannock, Bingham, Bonneville, Caribou, Power	5 days
May 31, 1:57 PM MDT	Special Weather Statement	PIH	Camas	48 min
May 31, 2:08 PM MDT	Special Weather Statement	PIH	Butte	37 min
May 31, 2:30 PM MDT	Flash Flood Warning	PIH	Butte, Custer	3 hr
May 31, 4:02 PM MDT	Special Weather Statement	PIH	Cassia	43 min
May 31, 4:02 PM MDT	Special Weather Statement	PIH	Bonneville	43 min
May 31, 4:12 PM MDT	Severe Thunderstorm Warning	PIH	Cassia	48 min
May 31, 4:20 PM MDT	Flash Flood Warning	PIH	Cassia	4 hr
May 31, 4:36 PM MDT	Special Weather Statement	PIH	Power	24 min
May 31, 4:44 PM MDT	Special Weather Statement	PIH	Power	46 min
May 31, 5:08 PM MDT	Special Weather Statement	PIH	Cassia	37 min

Nearby

Flash Flood Warnings in Idaho, 2023 Every flash flood warning in 2023

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.