Alert archive / Montana / Flash Flood Warnings in 2013

Flash Flood Warning 26, NWS Billings, MT

June 22, 2013Fallon County, Montana

NWS Billings, MT issued this flash flood warning at Jun 22, 2013, 4:45 PM MDT for Fallon County, Montana. 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: Jun 22, 2013, 4:45 PM MDT (22:45 UTC)
Expired: Jun 22, 2013, 7:45 PM MDT
In force: 3 hr
Issued by: NWS Billings, MT
Area: Storm-based polygon
Flood severity: None

County Fallon County, MT

The nearest sounding before it

Rapid City, SD (KUNR), launched 12:00Z, 10.8 hours before the alert went out and 279 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: 641 J/kg
Mixed-layer CIN: -109 J/kg
Mixed-layer LCL: 578 m above ground
0-6 km bulk shear: 42 kt
0-1 km storm-relative helicity: 17 m²/s²
0-3 km storm-relative helicity: 205 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 1.9

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 Billings, MT wrote its last area forecast discussion before this flash flood warning went out at Jun 22, 2:41 PM MDT, 2 hours 4 minutes earlier.

Area forecast discussion, Jun 22, 2:41 PM MDT, 2 hours 4 minutes before

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Hazardous weather outlook, Jun 22, 2:59 PM MDT, 1 hour 46 minutes before

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In the hours before

Special weather statement, Jun 22, 3:21 PM MDT, 1 hour 24 minutes before

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Special weather statement, Jun 22, 3:33 PM MDT, 1 hour 12 minutes before

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Local storm report, Jun 22, 3:52 PM MDT, 53 minutes before

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Special weather statement, Jun 22, 4:09 PM MDT, 36 minutes before

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Special weather statement, Jun 22, 4:16 PM MDT, 29 minutes before

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      <p id="message2">
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Special weather statement, Jun 22, 4:32 PM MDT, 13 minutes before

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      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
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      <p id="message2">
        Please try again in a few minutes.
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      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
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The office that day

Everything else NWS Billings, MT issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 22, 12:24 AM MDT	Special Weather Statement	BYZ	Stillwater	51 min
Jun 22, 2:05 AM MDT	Special Weather Statement	BYZ	Yellowstone	55 min
Jun 22, 4:09 AM MDT	Special Weather Statement	BYZ	Treasure	51 min
Jun 22, 12:45 PM MDT	Severe Thunderstorm Warning	BYZ	Stillwater, Sweet Grass	30 min
Jun 22, 1:18 PM MDT	Special Weather Statement	BYZ	Golden Valley	42 min
Jun 22, 1:25 PM MDT	Tornado Warning	BYZ	Golden Valley, Stillwater	35 min
Jun 22, 1:57 PM MDT	Special Weather Statement	BYZ	Carbon	48 min
Jun 22, 2:03 PM MDT	Special Weather Statement	BYZ	Golden Valley	42 min
Jun 22, 2:26 PM MDT	Flash Flood Warning	BYZ	Musselshell	6 hr
Jun 22, 2:27 PM MDT	Special Weather Statement	BYZ	Yellowstone	48 min
Jun 22, 2:44 PM MDT	Special Weather Statement	BYZ	Carter, Powder River	46 min
Jun 22, 2:54 PM MDT	Flash Flood Warning	BYZ	Yellowstone	3 hr
Jun 22, 3:13 PM MDT	Special Weather Statement	BYZ	Big Horn	47 min
Jun 22, 3:21 PM MDT	Special Weather Statement	BYZ	Musselshell	39 min
Jun 22, 3:33 PM MDT	Special Weather Statement	BYZ	Carter	42 min
Jun 22, 4:09 PM MDT	Special Weather Statement	BYZ	Fallon	51 min
Jun 22, 4:16 PM MDT	Special Weather Statement	BYZ	Stillwater	44 min
Jun 22, 4:32 PM MDT	Special Weather Statement	BYZ	Carter	43 min
Jun 22, 5:44 PM MDT	Special Weather Statement	BYZ	Carbon	46 min
Jun 22, 5:51 PM MDT	Special Weather Statement	BYZ	Carbon	39 min

Nearby

Flash Flood Warnings in Montana, 2013 Every flash flood warning in 2013

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.