Alert archive / Idaho / Special Weather Statements in 2021
Special Weather Statement, NWS Pocatello, ID
NWS Pocatello, ID issued this special weather statement at Jul 5, 2021, 12:44 PM MDT for Bonneville County, Idaho. It was in force for 61 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jul 5, 2021, 12:44 PM MDT (18:44 UTC)
- Expired
- Jul 5, 2021, 1:45 PM MDT
- In force
- 61 min
- Issued by
- NWS Pocatello, ID
County Bonneville County, ID
The radar
The Pocatello radar (KSFX), 121 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 229 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.
- Mixed-layer CAPE
- 24 J/kg
- Mixed-layer CIN
- -300 J/kg
- Mixed-layer LCL
- 1993 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 36 m²/s²
- 0-3 km storm-relative helicity
- 54 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
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</html>What forecasters said that day
The local office's own words before this special weather statement 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 special weather statement went out at Jul 5, 2:06 AM MDT, 10 hours 38 minutes earlier.
Area forecast discussion, Jul 5, 2:06 AM MDT, 10 hours 38 minutes before
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Service Notice</title>
<link rel="stylesheet" href="index.css">
</head>
<body>
<main class="wrap">
<section class="card" role="status" aria-live="polite">
<div class="status" id="status">Temporary Notice</div>
<h1 id="headline">This service is currently unavailable.</h1>
<p id="message1">
The site you requested is temporarily down for maintenance or an unexpected outage.
</p>
<p id="message2">
Please try again in a few minutes.
</p>
<p class="small" id="detail">
If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
</p>
</section>
</main>
<script src="index.js"></script>
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</html>In the hours before
Special weather statement, Jul 5, 12:44 PM MDT, 0 minutes before
Special Weather Statement National Weather Service Pocatello ID 1244 PM MDT Mon Jul 5 2021 IDZ063-064-051945- Big Hole Mountains ID-Caribou Range ID- 1244 PM MDT Mon Jul 5 2021 ...SIGNIFICANT WEATHER ADVISORY FOR EAST CENTRAL BONNEVILLE COUNTY UNTIL 145 PM MDT... At 1243 PM MDT, Doppler radar was tracking a strong thunderstorm near Irwin, or 7 miles southeast of Swan Valley, moving east at 20 mph. Winds in excess of 40 mph will be possible with this storm. Locations impacted include... Swan Valley, Palisades Reservoir and Irwin. PRECAUTIONARY/PREPAREDNESS ACTIONS... If on or near Palisades Reservoir, Move to safe shelter now! Do not be caught on or near the water. Gusty winds and choppy waves are likely. && LAT...LON 4319 11132 4344 11132 4347 11105 4317 11105 TIME...MOT...LOC 1843Z 266DEG 19KT 4336 11121 Valle
The office that day
Everything else NWS Pocatello, ID issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 4, 7:48 PM MDT | Special Weather Statement | PIH | Lincoln, Minidoka | 42 min |
| Jul 4, 8:38 PM MDT | Special Weather Statement | PIH | Minidoka, Power | 37 min |
| Jul 5, 2:02 AM MDT | Red Flag Warning | PIH | Bannock, Bear Lake, Bonneville, Butte, Caribou, Clark and 8 more | 19 hr |
| Jul 5, 2:02 PM MDT | Excessive Heat Warning | PIH | Blaine, Cassia, Lincoln, Minidoka, Power | 58 hr |
| Jul 5, 2:02 PM MDT | Heat Advisory | PIH | Bannock, Bingham, Bonneville, Butte, Caribou, Cassia and 6 more | 3 days |
| Jul 5, 3:03 PM MDT | Special Weather Statement | PIH | Bear Lake | 72 min |
| Jul 5, 3:12 PM MDT | Areal Flood Advisory | PIH | Bannock | 2 hr |
| Jul 5, 3:27 PM MDT | Special Weather Statement | PIH | Franklin | 48 min |
| Jul 5, 3:29 PM MDT | Areal Flood Advisory | PIH | Franklin | 2 hr |
| Jul 5, 3:56 PM MDT | Special Weather Statement | PIH | Butte | 49 min |
| Jul 5, 5:03 PM MDT | Special Weather Statement | PIH | Bingham | 42 min |
| Jul 5, 5:33 PM MDT | Special Weather Statement | PIH | Bingham, Power | 42 min |
| Jul 5, 5:40 PM MDT | Severe Thunderstorm Warning | PIH | Bingham | 35 min |
Nearby
Special Weather Statements in Idaho, 2021Every special weather statement in 2021
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.