Alert archive / Idaho / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 50, NWS Pocatello, ID

September 3, 20234 counties in Idaho

NWS Pocatello, ID issued this severe thunderstorm warning at Sep 3, 2023, 1:25 PM MDT for 4 counties in Idaho. It was in force for 44 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Sep 3, 2023, 1:25 PM MDT (19:25 UTC)
Expired: Sep 3, 2023, 2:09 PM MDT
In force: 44 min
Issued by: NWS Pocatello, ID
Area: Storm-based polygon
Hail: 1.25 in
Wind: 60.0 mph

Counties Bingham County, ID, Bonneville County, ID, Jefferson County, ID, Madison County, ID

The radar

The Pocatello radar (KSFX), 75 km from the middle of the area, began a volume at 19:26 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.

The nearest sounding before it

Salt Lake City I, UT (KSLC), launched 12:00Z, 7.4 hours before the alert went out and 308 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 12 J/kg
Mixed-layer CIN: -110 J/kg
Mixed-layer LCL: 1751 m above ground
0-6 km bulk shear: 20 kt
0-1 km storm-relative helicity: 71 m²/s²
0-3 km storm-relative helicity: 86 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm 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 severe thunderstorm warning went out at Sep 3, 2:50 AM MDT, 10 hours 35 minutes earlier.

Area forecast discussion, Sep 3, 2:50 AM MDT, 10 hours 35 minutes before

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In the hours before

Special weather statement, Sep 3, 11:03 AM MDT, 2 hours 22 minutes before

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Special weather statement, Sep 3, 11:28 AM MDT, 1 hour 57 minutes before

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Special weather statement, Sep 3, 11:30 AM MDT, 1 hour 55 minutes before

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Local storm report, Sep 3, 12:30 PM MDT, 55 minutes before

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Special weather statement, Sep 3, 1:18 PM MDT, 7 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
Sep 3, 11:03 AM MDT	Special Weather Statement	PIH	Caribou	57 min
Sep 3, 11:28 AM MDT	Special Weather Statement	PIH	Bonneville	47 min
Sep 3, 11:30 AM MDT	Special Weather Statement	PIH	Power	45 min
Sep 3, 1:08 PM MDT	Areal Flood Advisory	PIH	Bannock, Bingham, Power	3 hr
Sep 3, 1:18 PM MDT	Special Weather Statement	PIH	Bonneville	42 min
Sep 3, 1:33 PM MDT	Areal Flood Advisory	PIH	Cassia	3 hr
Sep 3, 2:04 PM MDT	Special Weather Statement	PIH	Minidoka	56 min
Sep 3, 2:05 PM MDT	Areal Flood Advisory	PIH	Bingham, Bonneville, Jefferson, Madison	2 hr
Sep 3, 3:33 PM MDT	Areal Flood Advisory	PIH	Bannock, Oneida, Power	55 min
Sep 3, 3:34 PM MDT	Special Weather Statement	PIH	Fremont	41 min
Sep 3, 3:47 PM MDT	Special Weather Statement	PIH	Teton	28 min
Sep 3, 5:15 PM MDT	Special Weather Statement	PIH	Bannock	45 min
Sep 3, 5:38 PM MDT	Special Weather Statement	PIH	Bear Lake	37 min
Sep 3, 5:43 PM MDT	Severe Thunderstorm Warning	PIH	Bannock, Caribou, Franklin	32 min
Sep 3, 5:54 PM MDT	Severe Thunderstorm Warning	PIH	Bear Lake, Franklin	34 min

Nearby

Severe Thunderstorm Warnings in Idaho, 2023 Every severe thunderstorm 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.