Alert archive / Montana / Special Weather Statements in 2011
Special Weather Statement, NWS Great Falls, MT
NWS Great Falls, MT issued this special weather statement at Jul 3, 2011, 2:32 PM MDT for Madison County, Montana. It was in force for 28 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
- Jul 3, 2011, 2:32 PM MDT (20:32 UTC)
- Expired
- Jul 3, 2011, 3:00 PM MDT
- In force
- 28 min
- Issued by
- NWS Great Falls, MT
County Madison County, MT
The radar
The Great Falls radar (KTFX), 237 km from the middle of the area, began a volume at 20:35 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, 8.5 hours before the alert went out and 253 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2139 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- -12 m²/s²
- 0-3 km storm-relative helicity
- 140 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 Jul 3, 1:00 PM MDT, 1 hour 32 minutes earlier.
Area forecast discussion, Jul 3, 1:00 PM MDT, 1 hour 32 minutes before
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<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.
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</html>Hazardous weather outlook, Jul 3, 4:25 AM MDT, 10 hours 7 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE GREAT FALLS MT 425 AM MDT SUN JUL 3 2011 MTZ012-015-055-041200- CASCADE-MADISON-GALLATIN- 425 AM MDT SUN JUL 3 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL MONTANA AND SOUTHWEST MONTANA. .DAY ONE...TODAY AND TONIGHT FLOOD HIGHLIGHTS REMAIN IN EFFECT ACROSS PORTIONS OF THE REGION. A WEAK COLD FRONT WILL MOVE THROUGH THE AREA THIS AFTERNOON AND IS EXPECTED TO TRIGGER A FEW STRONG TO SEVERE THUNDERSTORMS WITH POSSIBLY DAMAGING WINDS AND SMALL HAIL. THE BEST TIME FRAME FOR THE SEVERE THUNDERSTORMS TO OCCUR WILL BE FROM 3 PM TO 9 PM. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY FLOOD HIGHLIGHTS WILL REMAIN IN EFFECT ACROSS PORTIONS OF THE REGION UNTIL FURTHER NOTICE. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS REQUIRED FOR THIS AFTERNOON AND EVENING. REPORTS OF SEVERE WEATHER WOULD BE GREATLY APPRECIATED. MTZ008>011-013-014-044>054-041200- BEAVERHEAD-NORTHERN ROCKY MOUNTAIN FRONT-EASTERN GLACIER-HILL- CHOUTEAU-CENTRAL AND SOUTHERN LEWIS AND CLARK-TOOLE-LIBERTY- EASTERN PONDERA-BLAINE-SOUTHERN ROCKY MOUNTAIN FRONT- EASTERN TETON-JUDITH BASIN-FERGUS-JEFFERSON-BROADWATER-MEAGHER- 425 AM MDT SUN JUL 3 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL MONTANA...NORTH CENTRAL MONTANA AND SOUTHWEST MONTANA. .DAY ONE...TODAY AND TONIGHT A WEAK COLD FRONT WILL MOVE THROUGH THE AREA THIS AFTERNOON AND IS EXPECTED TO TRIGGER A FEW STRONG TO SEVERE THUNDERSTORMS WITH POSSIBLY DAMAGING WINDS AND SMALL HAIL. THE BEST TIME FRAME FOR THE SEVERE THUNDERSTORMS TO OCCUR WILL BE FROM 3 PM TO 9 PM. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS REQUIRED FOR THIS AFTERNOON AND EVENING. REPORTS OF SEVERE WEATHER WOULD BE GREATLY APPRECIATED.
In the hours before
Special weather statement, Jul 3, 2:32 PM MDT, 0 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GREAT FALLS MT 232 PM MDT SUN JUL 3 2011 MTZ008-015-055-032100- BEAVERHEAD MT-GALLATIN MT-MADISON MT- 232 PM MDT SUN JUL 3 2011 ...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL GALLATIN...CENTRAL MADISON AND CENTRAL BEAVERHEAD COUNTIES UNTIL 300 PM MDT... AT 230 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR ENNIS...OR 8 MILES EAST OF VIRGINIA CITY...MOVING NORTHEAST AT 35 MPH. THIS STORM IS CAPABLE OF PRODUCING WIND GUSTS UP TO 50 MPH. SOME LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE MCALLISTER AND NORRIS. ANOTHER STORMS WERE DEVELOPING QUICKLY OVER LOCATIONS JUST SOUTH OF DILLON...AND JUST NORTH OF BIG SKY. ALL OF THESE STORMS ARE MOVING TO THE NORTHEAST AROUND 30 MPH. AGAIN THE MAIN THREAT FROM THESE STORMS WILL BE WIND GUSTS OVER 40 MPH AS WELL. ANY OF THESE STORMS MAY INTENSIFY...SO 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 4580 11141 4514 11109 4487 11250 4517 11281 TIME...MOT...LOC 2031Z 238DEG 36KT 4534 11177 BRUSDA
The office that day
Everything else NWS Great Falls, MT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 3, 3:05 PM MDT | Special Weather Statement | TFX | Gallatin | 25 min |
| Jul 3, 3:50 PM MDT | Special Weather Statement | TFX | Gallatin | 25 min |
| Jul 3, 4:21 PM MDT | Special Weather Statement | TFX | Madison | 24 min |
Nearby
Special Weather Statements in Montana, 2011Every special weather statement in 2011
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.