Alert archive / Idaho / Flash Flood Warnings in 2010

Flash Flood Warning 1, NWS Pocatello, ID

April 21, 2010Blaine County, Idaho

NWS Pocatello, ID issued this flash flood warning at Apr 21, 2010, 11:42 AM MDT for Blaine County, Idaho. 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
Apr 21, 2010, 11:42 AM MDT (17:42 UTC)
Expired
Apr 21, 2010, 2:39 PM MDT
In force
3 hr
Issued by
NWS Pocatello, ID
Area
Storm-based polygon
Flood severity
None

County Blaine County, ID

The radar

The Pocatello radar (KSFX), 110 km from the middle of the area, began a volume at 17:43 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.

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 Pocatello, ID wrote its last area forecast discussion before this flash flood warning went out at Apr 21, 10:54 AM MDT, 48 minutes earlier.

Area forecast discussion, Apr 21, 10:54 AM MDT, 48 minutes before
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Hazardous weather outlook, Apr 21, 5:00 AM MDT, 6 hours 42 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE POCATELLO ID
500 AM MDT WED APR 21 2010

IDZ017>025-031-032-221300-
EASTERN MAGIC VALLEY-SAWTOOTH MOUNTAINS-UPPER SNAKE HIGHLANDS-
UPPER SNAKE RIVER PLAIN-LOWER SNAKE RIVER PLAIN-
SOUTH CENTRAL HIGHLANDS-CARIBOU HIGHLANDS-
CACHE VALLEY/IDAHO PORTION-WASATCH MOUNTAINS/IDAHO PORTION-
BIG AND LITTLE WOOD RIVER REGION-LOST RIVER/PAHSIMEROI-
500 AM MDT WED APR 21 2010

THIS HAZARDOUS WEATHER OUTLOOK IS FOR EASTERN IDAHO.

.DAY ONE...TODAY AND TONIGHT

EXPECT NUMEROUS SHOWERS AND THUNDERSTORMS TODAY.  SNOW LEVELS 8000
FEET TO 9000 FEET.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

VALLEY RAIN AND HIGH MOUNTAIN SNOW ON THURSDAY.   SNOW LEVELS OF
7000 FEET.  DRIER WEATHER MOVING IN FRIDAY.

.SPOTTER INFORMATION STATEMENT...

WE ASK TRAINED SPOTTERS AND CITIZENS TO REPORT SIGNIFICANT
WEATHER CONDITIONS WHEN IT IS SAFE TO DO SO. THESE CONDITIONS MAY
INCLUDE HAIL...TORNADOES...STRONG WIND...DUST STORMS...SNOWFALL...
EXTREME COLD TEMPERATURES...FREEZING RAIN OR HEAVY RAIN...DENSE
FOG...AND FLOODING OR ICE JAMS. INFORMATION ABOUT THESE HAZARDOUS
CONDITIONS SHOULD BE CALLED INTO YOUR NATIONAL WEATHER SERVICE
OFFICE IN POCATELLO USING THE 1-800 SEVERE WEATHER HOTLINE...OR
208-233-0834.

In the hours before

Special weather statement, Apr 21, 7:38 AM MDT, 4 hours 4 minutes before
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Special weather statement, Apr 21, 8:24 AM MDT, 3 hours 18 minutes before
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<body>
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        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
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Special weather statement, Apr 21, 9:51 AM MDT, 1 hour 51 minutes before
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<head>
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</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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Special weather statement, Apr 21, 9:55 AM MDT, 1 hour 47 minutes before
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<head>
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  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
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</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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The office that day

Everything else NWS Pocatello, ID issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 20, 6:47 PM MDTSpecial Weather StatementPIHCassia88 min
Apr 20, 11:35 PM MDTSpecial Weather StatementPIHCassia55 min
Apr 21, 12:10 AM MDTSpecial Weather StatementPIHPower50 min
Apr 21, 12:14 AM MDTSpecial Weather StatementPIHOneida, Power46 min
Apr 21, 5:11 AM MDTSpecial Weather StatementPIHFranklin49 min
Apr 21, 7:38 AM MDTSpecial Weather StatementPIHOneida, Power52 min
Apr 21, 8:24 AM MDTSpecial Weather StatementPIHPower66 min
Apr 21, 9:51 AM MDTSpecial Weather StatementPIHBlaine, Lincoln, Minidoka84 min
Apr 21, 9:55 AM MDTSpecial Weather StatementPIHButte65 min
Apr 21, 9:56 AM MDTFlash Flood WatchPIH12 hr
Apr 21, 1:33 PM MDTSpecial Weather StatementPIHMinidoka57 min
Apr 21, 2:18 PM MDTSpecial Weather StatementPIHBingham57 min
Apr 21, 2:46 PM MDTSpecial Weather StatementPIHMinidoka59 min
Apr 21, 3:42 PM MDTSpecial Weather StatementPIHBannock48 min
Apr 21, 3:44 PM MDTSpecial Weather StatementPIHButte46 min
Apr 21, 3:59 PM MDTSpecial Weather StatementPIHBannock46 min
Apr 21, 4:25 PM MDTSpecial Weather StatementPIHButte50 min
Apr 21, 4:42 PM MDTSpecial Weather StatementPIHBingham48 min
Apr 21, 5:57 PM MDTSpecial Weather StatementPIHBear Lake, Caribou, Franklin48 min

Nearby

Flash Flood Warnings in Idaho, 2010Every flash flood 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; radar from the NEXRAD Level II archive.