Alert archive / Idaho / Special Weather Statements in 2010

Special Weather Statement, NWS Missoula, MT

August 6, 2010Clearwater County, Idaho

NWS Missoula, MT issued this special weather statement at Aug 6, 2010, 2:41 AM PDT for Clearwater County, Idaho. It was in force for 64 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 6, 2010, 2:41 AM PDT (09:41 UTC)
Expired
Aug 6, 2010, 3:45 AM PDT
In force
64 min
Issued by
NWS Missoula, MT

County Clearwater County, ID

The radar

The Missoula radar (KMSX), 120 km from the middle of the area, began a volume at 09:43 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

Spokane, WA (KOTX), launched 00:00Z, 9.7 hours before the alert went out and 127 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, Spokane, WA at 00:00Z on 2010-08-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 336 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Spokane, WA at 00:00Z on 2010-08-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 3 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
336 J/kg
Mixed-layer CIN
-105 J/kg
Mixed-layer LCL
2802 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
3 m²/s²
0-3 km storm-relative helicity
101 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.7

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

<!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>
</body>
</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 Missoula, MT wrote its last area forecast discussion before this special weather statement went out at Aug 6, 2:33 AM PDT, 8 minutes earlier.

Area forecast discussion, Aug 6, 2:33 AM PDT, 8 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MISSOULA MT
333 AM MDT FRI AUG 6 2010

...POTENTIAL FOR A FEW SEVERE THUNDERSTORMS THIS AFTERNOON AND
EVENING...

.DISCUSSION...A TROUGH OF LOW PRESSURE PERSISTS OVER THE WEST
COAST CAUSING SOUTHWESTERLY FLOW ACROSS THE NORTHERN ROCKIES. THIS
LOW IS USHERING SIGNIFICANT MOISTURE AND DISTURBANCES THROUGH THE
REGION WITH WIDESPREAD THUNDERSTORMS EXPECTED TO MOVE OVER NORTH
CENTRAL IDAHO INTO NORTHWEST MONTANA. THESE STORMS WILL BE CAPABLE
OF PRODUCING HEAVY RAIN...SMALL HAIL AND GUSTY WINDS DURING THE
MORNING HOURS. THE FETCH OF MOISTURE IS EXPECTED TO DRAPE
SOUTHEASTWARD THROUGHOUT THE DAY AND SETTLE OVER NORTH CENTRAL
IDAHO INTO SOUTHWEST MONTANA. THE DISTURBANCE COMBINED WITH
DAYTIME HEATING COULD ALLOW A FEW OF THESE THUNDERSTORMS TO BECOME
SEVERE BY EARLY THIS AFTERNOON. THE CLOUD COVER AND PRECIPITATION
SHOULD KEEP TEMPERATURES AROUND SEASONAL TODAY.

THE THUNDERSTORMS ARE EXPECTED TO DECREASE THIS EVENING AS THE
SUN SETS...BUT LEMHI COUNTY INTO SOUTHWEST MONTANA SHOULD EXPECT
LINGERING THUNDERSTORMS THROUGHOUT THE NIGHT. ON SATURDAY...THE
TROUGH OF LOW PRESSURE WILL SLOWLY MOVE INLAND SHUNTING THE BEST
MOISTURE OUT OF THE NORTHERN ROCKIES. LINGERING LOW LEVEL MOISTURE
AND AFTERNOON DESTABILIZATION SHOULD ALLOW FOR THE DEVELOPMENT OF
A FEW SHOWERS AND THUNDERSTORMS ON SATURDAY.

SUNDAY THROUGH NEXT WEEK...BEST CONFIDENCE LIES IN A
CONSISTENTLY COOLER FORECAST EXPECTED FOR MOST OF NEXT WEEK. FOR
SUNDAY AND MONDAY...UNSTABLE AFTERNOONS WILL KEEP THE CHANCE FOR
THUNDERSTORMS MENTIONED EACH AFTERNOON AND EVENING. AN UPPER
LEVEL LOW ROTATING NORTH IN CANADA BY MIDWEEK WILL PROVIDE
CONTINUED UNSETTLED WEATHER AND COOLER TEMPERATURES ACROSS MUCH OF
THE WESTERN UNITED STATES.

&&

.AVIATION...THE ATMOSPHERE CONTINUES TO BE UNSTABLE THIS
MORNING ALLOWING FOR THUNDERSTORM FORMATION. CURRENTLY MOST OF
THE CONVECTION IS LOCATED ACROSS NORTH CENTRAL IDAHO INTO
NORTHWEST MONTANA. THE PATH OF CONVECTION WILL DRIFT SOUTHWARD
THROUGH OUT THE DAY...SO BY THIS AFTERNOON THE BEST AREA OF
CONVECTION WILL BE NORTH CENTRAL IDAHO INTO SOUTHWEST MONTANA. THE
SHOWERS AND THUNDERSTORMS ARE EXPECTED TO STRENGTH AS THE
ATMOSPHERE DESTABILIZES AROUND 06/1800Z. THESE STORMS WILL BE
CAPABLE OF PRODUCING HEAVY RAINFALL...HAIL AND GUSTY WINDS.
STORMS ARE ANTICIPATED TO DIMINISH AFTER 06/0300Z.

&&

.MSO WATCHES/WARNINGS/ADVISORIES...
MT...NONE.
ID...NONE.
&&

SHORT TERM...SMITH
LONG TERM....ALLEGRETTO
AVIATION...SMITH

In the hours before

Special weather statement, Aug 5, 9:00 PM PDT, 5 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.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>
Special weather statement, Aug 5, 9:24 PM PDT, 5 hours 17 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>
</body>
</html>
Special weather statement, Aug 5, 10:05 PM PDT, 4 hours 36 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>
</body>
</html>
Special weather statement, Aug 5, 10:25 PM PDT, 4 hours 16 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>
</body>
</html>
Special weather statement, Aug 6, 1:44 AM PDT, 57 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>
</body>
</html>
Special weather statement, Aug 6, 2:41 AM PDT, 0 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>
</body>
</html>

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 5, 5:00 PM PDTAreal Flood AdvisoryMSODeer Lodge83 min
Aug 5, 5:07 PM PDTSevere Thunderstorm WarningMSOGranite38 min
Aug 5, 5:22 PM PDTFlash Flood WarningMSOGranite99 min
Aug 5, 6:26 PM PDTSpecial Weather StatementMSOPowell49 min
Aug 5, 6:28 PM PDTSpecial Weather StatementMSOMissoula47 min
Aug 5, 7:21 PM PDTSpecial Weather StatementMSOPowell39 min
Aug 5, 9:00 PM PDTSpecial Weather StatementMSOLake45 min
Aug 5, 9:24 PM PDTSpecial Weather StatementMSO51 min
Aug 5, 10:05 PM PDTSpecial Weather StatementMSOMineral55 min
Aug 5, 10:25 PM PDTSpecial Weather StatementMSOLincoln65 min
Aug 6, 6:43 AM PDTSpecial Weather StatementMSOLincoln47 min
Aug 6, 12:59 PM PDTSpecial Weather StatementMSOLincoln46 min
Aug 6, 1:09 PM PDTFlash Flood WatchMSODeer Lodge, Granite, Powell, Ravalli, Silver Bow8 hr
Aug 6, 1:43 PM PDTSpecial Weather StatementMSORavalli47 min
Aug 6, 1:51 PM PDTSevere Thunderstorm WarningMSOGranite, Ravalli39 min
Aug 6, 1:53 PM PDTSpecial Weather StatementMSOLincoln52 min
Aug 6, 2:48 PM PDTSpecial Weather StatementMSOLincoln42 min
Aug 6, 2:49 PM PDTSpecial Weather StatementMSORavalli41 min
Aug 6, 3:09 PM PDTSevere Thunderstorm WarningMSOFlathead51 min
Aug 6, 3:36 PM PDTSpecial Weather StatementMSOSilver Bow39 min
Aug 6, 3:45 PM PDTSpecial Weather StatementMSOLincoln60 min
Aug 6, 3:54 PM PDTSpecial Weather StatementMSOFlathead66 min
Aug 6, 4:20 PM PDTSpecial Weather StatementMSORavalli55 min
Aug 6, 4:33 PM PDTSevere Thunderstorm WarningMSORavalli30 min
Aug 5, 6:51 PM PDTSevere Thunderstorm WarningMSOIdaho39 min
Aug 5, 7:11 PM PDTFlash Flood WarningMSOIdaho61 min
Aug 5, 7:29 PM PDTSevere Thunderstorm WarningMSOIdaho51 min
Aug 5, 8:23 PM PDTSpecial Weather StatementMSOIdaho52 min
Aug 6, 1:44 AM PDTSpecial Weather StatementMSOClearwater61 min
Aug 6, 3:09 PM PDTAreal Flood AdvisoryMSOLemhi20 min
Aug 6, 3:22 PM PDTFlash Flood WarningMSOLemhi98 min
Aug 6, 4:56 PM PDTFlash Flood WarningMSOLemhi2 hr

Nearby

Special Weather Statements in Idaho, 2010Every special weather statement 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.