Alert archive / Montana / Special Weather Statements in 2012

Special Weather Statement, NWS Billings, MT

June 2, 2012Park County, Montana

NWS Billings, MT issued this special weather statement at Jun 2, 2012, 2:21 PM MDT for Park County, Montana. It was in force for 54 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
Jun 2, 2012, 2:21 PM MDT (20:21 UTC)
Expired
Jun 2, 2012, 3:15 PM MDT
In force
54 min
Issued by
NWS Billings, MT

County Park County, MT

The radar

The Billings radar (KBLX), 159 km from the middle of the area, began a volume at 20:22 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

Great_falls, MT (KTFX), launched 12:00Z, 8.4 hours before the alert went out and 195 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, Great_falls, MT at 12:00Z on 2012-06-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Great_falls, MT at 12:00Z on 2012-06-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 28 square meters per square second.19395878Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1977 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
28 m²/s²
0-3 km storm-relative helicity
66 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

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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 Billings, MT wrote its last area forecast discussion before this special weather statement went out at Jun 2, 1:25 PM MDT, 56 minutes earlier.

Area forecast discussion, Jun 2, 1:25 PM MDT, 56 minutes before
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  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
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  <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>
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        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
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Hazardous weather outlook, Jun 2, 1:39 PM MDT, 42 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BILLINGS MT
139 PM MDT SAT JUN 2 2012

MTZ028>042-056>058-063>068-WYZ098-099-031945-
SOUTHERN WHEATLAND-MUSSELSHELL-TREASURE-NORTHERN ROSEBUD-CUSTER-
FALLON-NORTHERN STILLWATER-YELLOWSTONE-POWDER RIVER-CARTER-
SOUTHERN BIG HORN-EASTERN CARBON-NORTHERN PARK-
NORTHERN SWEET GRASS-GOLDEN VALLEY-RED LODGE FOOTHILLS-
NORTHERN BIG HORN-SOUTHERN ROSEBUD-JUDITH GAP-PARADISE VALLEY-
LIVINGSTON AREA-BEARTOOTH FOOTHILLS-ABSAROKA/BEARTOOTH MOUNTAINS-
CRAZY MOUNTAINS-NORTHEAST BIG HORN MOUNTAINS-SHERIDAN FOOTHILLS-
139 PM MDT SAT JUN 2 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL
MONTANA...SOUTH CENTRAL MONTANA...SOUTHEAST MONTANA AND NORTH
CENTRAL WYOMING.

.DAY ONE...TONIGHT

A FEW SEVERE THUNDERSTORMS WITH DAMAGING WINDS AND LARGE HAIL
WILL BE POSSIBLE OVER SOUTH CENTRAL AND SOUTHEAST MONTANA LATE
THIS AFTERNOON AND EVENING. FREQUENT LIGHTNING AND HEAVY RAIN CAN
ALSO BE EXPECTED WITH THESE STORMS. PLEASE KEEP A WATCHFUL EYE TO
THE SKY AND BE PREPARED TO TAKE SHELTER IF THREATENING WEATHER
APPROACHES.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

THERE IS POTENTIAL FOR SEVERE THUNDERSTORMS MONDAY THROUGH
WEDNESDAY ACROSS THE ENTIRE AREA. DESPITE THE POTENTIAL FOR
SEVERE WEATHER...THERE IS CONSIDERABLE UNCERTAINTY ON TIMING AND
PLACEMENT OF THUNDERSTORM ACTIVITY. PLEASE MONITOR THE LATEST
FORECASTS.

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

In the hours before

Special weather statement, Jun 2, 1:52 PM MDT, 29 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BILLINGS MT
152 PM MDT SAT JUN 2 2012

MTZ038-WYZ098-099-022115-
NORTHEAST BIG HORN MOUNTAINS WY-SHERIDAN FOOTHILLS WY-SOUTHERN BIG
HORN MT-
152 PM MDT SAT JUN 2 2012

...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL SHERIDAN AND SOUTHEASTERN
BIG HORN COUNTIES UNTIL 315 PM MDT...

AT 145 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
AN AREA OF THUNDERSTORMS CROSSING OVER THE BIG HORN MOUNTAINS IN
SHERIDAN COUNTY...MOVING EAST NORTHEAST AT 25 MPH.

PEOPLE IN SHERIDAN AND SURROUNDING AREAS...INCLUDING MOTORISTS ON
INTERSTATE 90...SHOULD BE PREPARED FOR BRIEF HEAVY RAIN AND SUDDEN
WIND GUSTS TO 50 MPH THROUGH AT LEAST 315 PM.

IF THREATENING WEATHER APPROACHES YOUR AREA...TAKE SHELTER IN A
STURDY BUILDING. IF IN A VEHICLE...SLOW DOWN OR CAREFULLY PULL TO
THE SIDE OF THE ROAD WITH HAZARD LIGHT ON UNTIL BAD WEATHER PASSES.

LAT...LON 4516 10755 4518 10645 4458 10624 4456 10727
TIME...MOT...LOC 1947Z 244DEG 22KT 4480 10740
Special weather statement, Jun 2, 2:21 PM MDT, 0 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BILLINGS MT
221 PM MDT SAT JUN 2 2012

MTZ040-041-064>068-022115-
ABSAROKA/BEARTOOTH MOUNTAINS MT-BEARTOOTH FOOTHILLS MT-CRAZY
MOUNTAINS MT-LIVINGSTON AREA MT-NORTHERN PARK MT-NORTHERN SWEET GRASS
MT-PARADISE VALLEY MT-
221 PM MDT SAT JUN 2 2012

...SIGNIFICANT WEATHER ADVISORY FOR EXTREME SOUTHWESTERN WHEATLAND...
PARK...EXTREME SOUTHWESTERN STILLWATER AND WESTERN SWEET GRASS
COUNTIES UNTIL 315 PM MDT...

AT 218 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM 25 MILES NORTHWEST
OF CLYDE PARK TO 6 MILES EAST OF BOZEMAN TO 21 MILES WEST OF
GARDINER...AND MOVING EAST AT 30 MPH.

WIND GUSTS UP TO 50 MPH ARE EXPECTED WITH THESE STORMS...ALONG WITH
HEAVY RAIN AND FREQUENT DANGEROUS LIGHTNING.

THESE STORMS WILL BE NEAR...
MINER AROUND 230 PM MDT.
EMIGRANT AROUND 245 PM MDT.
CHICO...CLYDE PARK...CORWIN SPRINGS...LIVINGSTON AND PRAY AROUND 250
PM MDT.
SPRINGDALE AROUND 315 PM MDT.

THESE STORMS MAY INTENSIFY...AND A SEVERE THUNDERSTORM WATCH IS IN
EFFECT FOR THIS AREA. BE CERTAIN TO MONITOR LOCAL RADIO AND TV
STATIONS...AS WELL AS LOCAL CABLE TV OUTLETS...FOR ADDITIONAL
INFORMATION AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE.

LAT...LON 4536 11101 4536 11093 4552 11094 4554 11086
      4560 11085 4561 11081 4606 11081 4620 11077
      4620 11030 4625 11028 4625 11020 4622 11014
      4622 11002 4506 11003 4506 11095 4510 11101
TIME...MOT...LOC 2021Z 270DEG 28KT 4612 11096 4565 11088
          4511 11110

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 2, 2:59 PM MDTSpecial Weather StatementBYZ61 min
Jun 2, 3:05 PM MDTSpecial Weather StatementBYZPark, Sweet Grass55 min
Jun 2, 3:36 PM MDTSpecial Weather StatementBYZSweet Grass24 min
Jun 2, 3:58 PM MDTSpecial Weather StatementBYZStillwater32 min
Jun 2, 4:28 PM MDTSpecial Weather StatementBYZYellowstone62 min
Jun 2, 4:38 PM MDTSevere Thunderstorm WarningBYZYellowstone52 min
Jun 2, 5:23 PM MDTSpecial Weather StatementBYZCarter52 min
Jun 2, 1:52 PM MDTSpecial Weather StatementBYZSheridan83 min

Nearby

Special Weather Statements in Montana, 2012Every special weather statement in 2012

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.