Alert archive / Idaho / Special Weather Statements in 2017
Special Weather Statement, NWS Pocatello, ID
NWS Pocatello, ID issued this special weather statement at Aug 9, 2017, 1:47 PM MDT for Cassia County, Idaho. It was in force for 43 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
- Aug 9, 2017, 1:47 PM MDT (19:47 UTC)
- Expired
- Aug 9, 2017, 2:30 PM MDT
- In force
- 43 min
- Issued by
- NWS Pocatello, ID
County Cassia County, ID
The radar
The Pocatello radar (KSFX), 124 km from the middle of the area, began a volume at 19:48 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
Elko, NV (KLKN), launched 12:00Z, 7.8 hours before the alert went out and 157 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
- 33 J/kg
- Mixed-layer CIN
- -257 J/kg
- Mixed-layer LCL
- 1743 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- -3 m²/s²
- 0-3 km storm-relative helicity
- -53 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 Aug 9, 3:06 AM MDT, 10 hours 41 minutes earlier.
Area forecast discussion, Aug 9, 3:06 AM MDT, 10 hours 41 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.
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</html>In the hours before
Special weather statement, Aug 9, 1:47 PM MDT, 0 minutes before
Special Weather Statement National Weather Service Pocatello ID 147 PM MDT WED AUG 9 2017 IDZ022-092030- South Central Highlands ID- 147 PM MDT WED AUG 9 2017 ...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL CASSIA COUNTY UNTIL 230 PM MDT... At 145 PM MDT, Doppler radar was tracking a strong thunderstorm near Elba or 13 miles southwest of Malta, moving northeast at 5 mph. Winds in excess of 40 mph will be possible with this storm, including 0.10 to 0.20 inches of rain. Locations impacted include... Elba. LAT...LON 4215 11370 4221 11371 4235 11349 4219 11338 TIME...MOT...LOC 1945Z 239DEG 4KT 4221 11361 RS
The office that day
Everything else NWS Pocatello, ID issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 8, 6:06 PM MDT | Special Weather Statement | PIH | Cassia, Power | 39 min |
| Aug 9, 2:30 PM MDT | Special Weather Statement | PIH | Cassia | 45 min |
| Aug 9, 2:48 PM MDT | Special Weather Statement | PIH | Power | 42 min |
| Aug 9, 3:13 PM MDT | Special Weather Statement | PIH | Blaine | 47 min |
| Aug 9, 3:41 PM MDT | Areal Flood Advisory | PIH | Power | 64 min |
| Aug 9, 3:43 PM MDT | Special Weather Statement | PIH | Franklin | 47 min |
| Aug 9, 3:50 PM MDT | Areal Flood Advisory | PIH | Franklin | 55 min |
| Aug 9, 4:52 PM MDT | Special Weather Statement | PIH | Fremont | 38 min |
Nearby
Special Weather Statements in Idaho, 2017Every special weather statement in 2017
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.