Alert archive / Montana / Special Weather Statements in 2012
Special Weather Statement, NWS Great Falls, MT
NWS Great Falls, MT issued this special weather statement at Apr 26, 2012, 4:02 PM MDT for Pondera County, Montana. 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
- Apr 26, 2012, 4:02 PM MDT (22:02 UTC)
- Expired
- Apr 26, 2012, 4:45 PM MDT
- In force
- 43 min
- Issued by
- NWS Great Falls, MT
County Pondera County, MT
The radar
The Great Falls radar (KTFX), 112 km from the middle of the area, began a volume at 22:03 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 12:00Z, 10.0 hours before the alert went out and 335 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
- 18 J/kg
- Mixed-layer CIN
- -40 J/kg
- Mixed-layer LCL
- 753 m above ground
- 0-6 km bulk shear
- 51 kt
- 0-1 km storm-relative helicity
- 214 m²/s²
- 0-3 km storm-relative helicity
- 230 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
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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 Great Falls, MT wrote its last area forecast discussion before this special weather statement went out at Apr 26, 3:13 PM MDT, 49 minutes earlier.
Area forecast discussion, Apr 26, 3:13 PM MDT, 49 minutes before
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</head>
<body>
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<div class="status" id="status">Temporary Notice</div>
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</html>Hazardous weather outlook, Apr 26, 1:50 PM MDT, 2 hours 12 minutes before
HAZARDOUS WEATHER OUTLOOK...UPDATED NATIONAL WEATHER SERVICE GREAT FALLS MT 150 PM MDT THU APR 26 2012 MTZ008>010-012>015-046-048>055-271200- BEAVERHEAD-NORTHERN ROCKY MOUNTAIN FRONT-EASTERN GLACIER-CASCADE- CHOUTEAU-CENTRAL AND SOUTHERN LEWIS AND CLARK-MADISON- EASTERN PONDERA-SOUTHERN ROCKY MOUNTAIN FRONT-EASTERN TETON- JUDITH BASIN-FERGUS-JEFFERSON-BROADWATER-MEAGHER-GALLATIN- 150 PM MDT THU APR 26 2012 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL MONTANA...NORTH CENTRAL MONTANA AND SOUTHWEST MONTANA. .DAY ONE...TODAY AND TONIGHT SCATTERED SHOWERS AND THUNDERSTORMS ARE POSSIBLE THIS AFTERNOON AND EVENING. SOME STORMS MAY CONTAIN GUSTY WINDS AND SMALL HAIL. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY A STRONG PACIFIC STORM SYSTEM WILL BRING WIDESPREAD PRECIPITATION AND SIGNIFICANTLY COOLER TEMPERATURES TO THE AREA FRIDAY AND SATURDAY. SNOW IS EXPECTED IN THE MOUNTAINS. LOWER ELEVATIONS WILL SEE MOSTLY RAIN...HOWEVER THERE IS A CHANCE OF SOME SNOW ESPECIALLY FRIDAY NIGHT THROUGH SATURDAY MORNING. A WINTER STORM WATCH IS IN EFFECT FOR FRIDAY AND SATURDAY. WARM TEMPERATURES CONTRIBUTING TO MELTING SNOW IN THE HIGHER ELEVATIONS...COMBINED WITH WIDESPREAD PRECIPITATION...COULD CAUSE MINOR SMALL STREAM FLOODING AT TIMES THROUGH SATURDAY. .SPOTTER INFORMATION STATEMENT... ANY SPOTTER REPORTS OF STRONG THUNDERSTORMS AND FLOODING PROBLEMS WOULD GREATLY BE APPRECIATED. MTZ011-044-045-047-271200- HILL-TOOLE-LIBERTY-BLAINE- 150 PM MDT THU APR 26 2012 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTH CENTRAL MONTANA. .DAY ONE...TODAY AND TONIGHT STRONG EASTERLY WINDS ARE POSSIBLE THROUGHOUT THE DAY WITH SCATTERED THUNDERSTORMS DEVELOPING THIS AFTERNOON. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY A STRONG PACIFIC STORM SYSTEM WILL BRING WIDESPREAD PRECIPITATION AND SIGNIFICANTLY COOLER TEMPERATURES TO THE AREA FRIDAY AND SATURDAY THROUGH SATURDAY. LOWER ELEVATIONS WILL SEE MOSTLY RAIN...HOWEVER THERE IS A CHANCE OF SOME SNOW ESPECIALLY FRIDAY NIGHT THROUGH SATURDAY MORNING. WARM TEMPERATURES CONTRIBUTING TO MELTING SNOW IN THE HIGHER ELEVATIONS...COMBINED WITH WIDESPREAD PRECIPITATION...COULD CAUSE MINOR SMALL STREAM FLOODING AT TIMES THROUGH SATURDAY. .SPOTTER INFORMATION STATEMENT... ANY SPOTTER REPORTS OF STRONG THUNDERSTORMS AND FLOODING PROBLEMS WOULD GREATLY BE APPRECIATED.
In the hours before
Special weather statement, Apr 26, 4:02 PM MDT, 0 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GREAT FALLS MT 402 PM MDT THU APR 26 2012 MTZ009-044-046-048-049-262245- EASTERN PONDERA MT-EASTERN TETON MT-NORTHERN ROCKY MOUNTAIN FRONT MT-SOUTHERN ROCKY MOUNTAIN FRONT MT-TOOLE MT- 402 PM MDT THU APR 26 2012 ...SIGNIFICANT WEATHER ADVISORY FOR EASTERN PONDERA...EXTREME NORTHERN TETON AND CENTRAL TOOLE COUNTIES UNTIL 445 PM MDT... AT 358 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 6 MILES WEST OF CONRAD...MOVING NORTH AT 30 MPH. WIND GUSTS UP TO 50 MPH...OCCASIONAL LIGHTING...AND DIME SIZED HAIL ARE EXPECTED WITH THIS STORM. * LOCATIONS IMPACTED INCLUDE... CONRAD... LEDGER... SHELBY... IF THREATENING WEATHER APPROACHES YOUR AREA...TAKE SHELTER IN A STURDY BUILDING. LAT...LON 4861 11212 4852 11160 4805 11197 4810 11223 TIME...MOT...LOC 2200Z 196DEG 24KT 4817 11206 NL
The office that day
Everything else NWS Great Falls, MT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 26, 4:11 AM MDT | Winter Storm Watch | TFX | 25 hr | |
| Apr 26, 1:44 PM MDT | Areal Flood Advisory | TFX | Glacier | 45 hr |
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.