Alert archive / Idaho / Red Flag Warnings in 2010

Red Flag Warning 7, NWS Pocatello, ID

August 5, 20109 counties in Idaho

NWS Pocatello, ID issued this red flag warning at Aug 5, 2010, 3:08 AM MDT for 9 counties in Idaho. It took effect at Aug 6, 2010, 2:00 PM MDT. It was in force for 8 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: Aug 5, 2010, 3:08 AM MDT (09:08 UTC)
In effect from: Aug 6, 2010, 2:00 PM MDT
Expired: Aug 6, 2010, 10:00 PM MDT
In force: 8 hr
Issued by: NWS Pocatello, ID

Counties Bingham County, ID, Bonneville County, ID, Butte County, ID, Clark County, ID, Fremont County, ID, Jefferson County, ID, Madison County, ID, Power County, ID, Teton County, ID

The radar

The Pocatello radar (KSFX), 77 km from the middle of the area, began a volume at 09:07 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 00:00Z, 9.1 hours before the alert went out and 320 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: 4 J/kg
Mixed-layer CIN: -232 J/kg
Mixed-layer LCL: 3384 m above ground
0-6 km bulk shear: 43 kt
0-1 km storm-relative helicity: 11 m²/s²
0-3 km storm-relative helicity: 64 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 red flag 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 red flag warning went out at Aug 5, 2:13 AM MDT, 55 minutes earlier.

Area forecast discussion, Aug 5, 2:13 AM MDT, 55 minutes before

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Hazardous weather outlook, Aug 4, 2:18 PM MDT, 12 hours 50 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
Aug 5, 1:46 PM MDT	Special Weather Statement	PIH	Custer	44 min
Aug 5, 1:48 PM MDT	Special Weather Statement	PIH	Custer	27 min
Aug 5, 2:14 PM MDT	Severe Thunderstorm Warning	PIH	Custer	46 min
Aug 5, 3:37 PM MDT	Severe Thunderstorm Warning	PIH	Custer	38 min
Aug 5, 3:56 PM MDT	Special Weather Statement	PIH	Bear Lake	49 min
Aug 5, 4:15 PM MDT	Severe Thunderstorm Warning	PIH	Blaine, Cassia, Minidoka	45 min
Aug 5, 4:21 PM MDT	Special Weather Statement	PIH		39 min
Aug 5, 4:22 PM MDT	Special Weather Statement	PIH	Bonneville	23 min
Aug 5, 4:38 PM MDT	Special Weather Statement	PIH	Butte	22 min
Aug 5, 5:02 PM MDT	Special Weather Statement	PIH	Butte	28 min
Aug 5, 5:16 PM MDT	Special Weather Statement	PIH	Power	59 min
Aug 5, 5:28 PM MDT	Tornado Warning	PIH	Butte, Clark	34 min
Aug 5, 5:31 PM MDT	Areal Flood Advisory	PIH	Butte	3 hr

Nearby

Red Flag Warnings in Idaho, 2010 Every red flag warning in 2010

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.