Alert archive / Montana / Special Weather Statements in 2013
Special Weather Statement, NWS Great Falls, MT
NWS Great Falls, MT issued this special weather statement at Aug 2, 2013, 2:09 PM MDT for Chouteau County, Montana. It was in force for 51 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 2, 2013, 2:09 PM MDT (20:09 UTC)
- Expired
- Aug 2, 2013, 3:00 PM MDT
- In force
- 51 min
- Issued by
- NWS Great Falls, MT
County Chouteau County, MT
The radar
The Great Falls radar (KTFX), 103 km from the middle of the area, began a volume at 20:12 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, 8.2 hours before the alert went out and 46 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
- 875 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- 95 m²/s²
- 0-3 km storm-relative helicity
- 147 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 Aug 2, 11:55 AM MDT, 2 hours 14 minutes earlier.
Area forecast discussion, Aug 2, 11:55 AM MDT, 2 hours 14 minutes before
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</html>Hazardous weather outlook, Aug 2, 5:49 AM MDT, 8 hours 20 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE GREAT FALLS MT 549 AM MDT FRI AUG 2 2013 MTZ009-010-014-048-031200- NORTHERN ROCKY MOUNTAIN FRONT-EASTERN GLACIER- CENTRAL AND SOUTHERN LEWIS AND CLARK- SOUTHERN ROCKY MOUNTAIN FRONT- 549 AM MDT FRI AUG 2 2013 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTH CENTRAL MONTANA AND SOUTHWEST MONTANA. .DAY ONE...TODAY AND TONIGHT A FLOOD WATCH FOR HEAVY RAIN POTENTIAL IS IN EFFECT UNTIL LATE TONIGHT. WIDESPREAD SHOWERS AND THUNDERSTORMS ARE EXPECTED TODAY AND INTO TONIGHT. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS REQUESTED FOR ANY REPORTS OF FLOODING. MTZ011>013-044>047-049>051-031200- HILL-CASCADE-CHOUTEAU-TOOLE-LIBERTY-EASTERN PONDERA-BLAINE- EASTERN TETON-JUDITH BASIN-FERGUS- 549 AM MDT FRI AUG 2 2013 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL MONTANA AND NORTH CENTRAL MONTANA. .DAY ONE...TODAY AND TONIGHT WIDESPREAD SHOWERS AND THUNDERSTORMS ARE EXPECTED TODAY AND INTO TONIGHT. HEAVY RAIN IS POSSIBLE AT TIMES. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME. MTZ008-015-052>055-031200- BEAVERHEAD-MADISON-JEFFERSON-BROADWATER-MEAGHER-GALLATIN- 549 AM MDT FRI AUG 2 2013 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHWEST MONTANA. .DAY ONE...TODAY AND TONIGHT SCATTERED SHOWERS AND THUNDERSTORMS ARE EXPECTED THIS AFTERNOON INTO TONIGHT. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.
In the hours before
Local storm report, Aug 2, 8:40 AM MDT, 5 hours 29 minutes before
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</html>Local storm report, Aug 2, 8:42 AM MDT, 5 hours 27 minutes before
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</html>Local storm report, Aug 2, 8:43 AM MDT, 5 hours 26 minutes before
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</html>Special weather statement, Aug 2, 1:33 PM MDT, 36 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GREAT FALLS MT 133 PM MDT FRI AUG 2 2013 MTZ013-022015- CHOUTEAU MT- 133 PM MDT FRI AUG 2 2013 ...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL CHOUTEAU COUNTY UNTIL 215 PM MDT... AT 130 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM 8 MILES SOUTH OF FORT BENTON TO 8 MILES WEST OF GERALDINE...AND MOVING EAST AT 15 MPH. HAIL UP TO ONE-HALF INCH IN DIAMETER AND WIND GUSTS UP TO 40 MPH ARE EXPECTED WITH THESE STORMS...ALONG WITH HEAVY RAIN. * LOCATIONS IMPACTED INCLUDE... RURAL CENTRAL CHOUTEAU COUNTY... THIS STORM 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 4782 11024 4766 10985 4759 11044 4775 11083 TIME...MOT...LOC 1933Z 260DEG 15KT 4772 11058 4765 11042 SUK
Special weather statement, Aug 2, 2:09 PM MDT, 0 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GREAT FALLS MT 209 PM MDT FRI AUG 2 2013 MTZ013-051-022100- CHOUTEAU MT-FERGUS MT- 209 PM MDT FRI AUG 2 2013 ...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN FERGUS AND SOUTHERN CHOUTEAU COUNTIES UNTIL 300 PM MDT... AT 207 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR GERALDINE...OR 23 MILES SOUTHEAST OF FORT BENTON...MOVING EAST AT 20 MPH. HAIL UP TO THE SIZE OF NICKELS AND WIND GUSTS UP TO 50 MPH ARE EXPECTED WITH THIS STORM...ALONG WITH HEAVY RAIN. * LOCATIONS IMPACTED INCLUDE... SQUARE BUTTE... THIS STORM 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 4765 10974 4735 10992 4758 11041 4775 11033 TIME...MOT...LOC 2009Z 288DEG 16KT 4764 11024 SUK
The office that day
Everything else NWS Great Falls, MT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 2, 12:09 AM MDT | Special Weather Statement | TFX | Cascade | 51 min |
| Aug 2, 1:15 AM MDT | Special Weather Statement | TFX | Cascade | 45 min |
| Aug 2, 1:22 AM MDT | Special Weather Statement | TFX | Jefferson | 38 min |
| Aug 2, 1:57 AM MDT | Severe Thunderstorm Warning | TFX | Broadwater, Lewis and Clark | 48 min |
| Aug 2, 2:22 AM MDT | Special Weather Statement | TFX | Meagher | 38 min |
| Aug 2, 1:33 PM MDT | Special Weather Statement | TFX | Chouteau | 42 min |
| Aug 2, 2:36 PM MDT | Special Weather Statement | TFX | Judith Basin | 39 min |
| Aug 2, 2:57 PM MDT | Severe Thunderstorm Warning | TFX | Fergus, Judith Basin | 48 min |
| Aug 2, 3:13 PM MDT | Special Weather Statement | TFX | Fergus | 47 min |
| Aug 2, 3:41 PM MDT | Special Weather Statement | TFX | Fergus | 49 min |
Nearby
Special Weather Statements in Montana, 2013Every special weather statement in 2013
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.