Alert archive / Idaho / Flash Flood Warnings in 2023

Flash Flood Warning 6, NWS Pocatello, ID

May 26, 2023Bonneville County, Jefferson County, Idaho

NWS Pocatello, ID issued this flash flood warning at May 26, 2023, 12:42 PM MDT for Bonneville County, Jefferson 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 26, 2023, 12:42 PM MDT (18:42 UTC)
Expired
May 26, 2023, 3:45 PM MDT
In force
3 hr
Issued by
NWS Pocatello, ID
Area
Storm-based polygon
Flood severity
None

Counties Bonneville County, ID, Jefferson County, ID

The radar

The Pocatello radar (KSFX), 81 km from the middle of the area, began a volume at 18:45 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

Riverton, WY (KRIW), launched 12:00Z, 6.7 hours before the alert went out and 294 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-pSkew-T log-p diagram, Riverton, WY at 12:00Z on 2023-05-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Riverton, WY at 12:00Z on 2023-05-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 32 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1826 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
32 m²/s²
0-3 km storm-relative helicity
131 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 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 26, 3:39 AM MDT, 9 hours 3 minutes earlier.

Area forecast discussion, May 26, 3:39 AM MDT, 9 hours 3 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
May 25, 6:03 PM MDTSpecial Weather StatementPIHBlaine, Lincoln42 min
May 25, 6:13 PM MDTSpecial Weather StatementPIHBlaine47 min
May 25, 6:40 PM MDTSpecial Weather StatementPIHMinidoka50 min
May 25, 7:22 PM MDTSpecial Weather StatementPIHButte53 min
May 25, 7:57 PM MDTSpecial Weather StatementPIHButte63 min
May 25, 7:58 PM MDTSpecial Weather StatementPIHPower47 min
May 25, 8:07 PM MDTSpecial Weather StatementPIHCuster38 min
May 25, 8:31 PM MDTSevere Thunderstorm WarningPIHBannock, Bingham, Power44 min
May 25, 8:38 PM MDTSpecial Weather StatementPIHClark67 min
May 25, 8:50 PM MDTSpecial Weather StatementPIHCuster55 min
May 25, 9:02 PM MDTSpecial Weather StatementPIHButte58 min
May 26, 1:35 PM MDTFlash Flood WarningPIHCassia5 hr
May 26, 2:34 PM MDTTornado WarningPIHCassia26 min
May 26, 2:48 PM MDTFlash Flood WarningPIHBingham3 hr
May 26, 2:55 PM MDTSevere Thunderstorm WarningPIHCassia35 min
May 26, 3:04 PM MDTFlash Flood WarningPIHCassia3 hr
May 26, 3:14 PM MDTFlash Flood WarningPIHCassia3 hr
May 26, 3:27 PM MDTSevere Thunderstorm WarningPIHLincoln33 min
May 26, 3:31 PM MDTSevere Thunderstorm WarningPIHCassia, Power29 min
May 26, 3:37 PM MDTSevere Thunderstorm WarningPIHBlaine, Power53 min
May 26, 4:04 PM MDTAreal Flood AdvisoryPIHBlaine, Lincoln2 hr
May 26, 4:13 PM MDTSpecial Weather StatementPIHBear Lake77 min
May 26, 4:15 PM MDTSevere Thunderstorm WarningPIHBlaine16 min
May 26, 4:16 PM MDTSevere Thunderstorm WarningPIHBlaine, Butte, Minidoka, Power59 min
May 26, 4:55 PM MDTFlash Flood WarningPIHBannock, Oneida, Power3 hr
May 26, 5:12 PM MDTSevere Thunderstorm WarningPIHButte48 min
May 26, 5:25 PM MDTFlash Flood WarningPIHBlaine, Butte, Custer3 hr
May 26, 5:41 PM MDTFlash Flood WarningPIHButte, Clark3 hr

Nearby

Flash Flood Warnings in Idaho, 2023Every 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.