Alert archive / Montana / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 6, NWS Great Falls, MT
NWS Great Falls, MT issued this severe thunderstorm warning at Jun 2, 2001, 2:16 PM MDT for Gallatin County, Meagher County, Montana. It was in force for 29 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.
The facts
- Issued
- Jun 2, 2001, 2:16 PM MDT (20:16 UTC)
- Expired
- Jun 2, 2001, 2:45 PM MDT
- In force
- 29 min
- Issued by
- NWS Great Falls, MT
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
Counties Gallatin County, MT, Meagher County, MT
The radar
The Great Falls radar (KTFX), 146 km from the middle of the area, began a volume at 20:19 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, 8.3 hours before the alert went out and 145 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
- 1561 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- 171 m²/s²
- 0-3 km storm-relative helicity
- 405 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS55 KTFX 022018 SVRGTF MTC031-059-022045- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE GREAT FALLS MT 216 PM MDT SAT JUN 2 2001 THE NATIONAL WEATHER SERVICE IN GREAT FALLS HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTH CENTRAL MEAGHER COUNTY IN CENTRAL MONTANA NORTHEASTERN GALLATIN COUNTY IN SOUTHWEST MONTANA * UNTIL 245 PM MDT * AT 214 PM MDT...THE PUBLIC REPORTED A SEVERE THUNDERSTORM 7 MILES SOUTHEAST OF MAUDLOW...OR ABOUT 27 MILES NORTH OF BOZEMAN...MOVING NORTHEAST AT 45 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... RINGLING AROUND 240 PM MDT ESTIMATES OF 70 MPH WINDS WERE REPORTED ABOUT 20 MILES NORTH OF BOZEMAN WITH HEAVY RAIN. REPORT SEVERE WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN GREAT FALLS. LAT...LON 4606 11123 4594 11103 4633 11050 4652 11081 D
What forecasters said that day
The local office's own words before this severe thunderstorm warning 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 severe thunderstorm warning went out at Jun 2, 9:45 AM MDT, 4 hours 31 minutes earlier.
Area forecast discussion, Jun 2, 9:45 AM MDT, 4 hours 31 minutes before
SOUTHWEST AND NORTH CENTRAL MONTANA FORECAST DISCUSSION NATIONAL WEATHER SERVICE GREAT FALLS MT 945 AM MDT SAT JUN 2 2001 ...UPDATES PLANNED FOR ZONES AND STATE... A LOT OF WEATHER TO CONTEND WITH THIS MORNING. RADAR INDICATING SOME SHOWERS OVER THE FAR NRN ZONES BUT THEY SHOULD BE MOVING OUT OF AREA BY NOON. LATEST ETA/NGM FORECAST A SHORTWAVE TO MOVE THROUGH SW MT THIS AFTERNOON. WILL RAISE POPS A TAD AT BZN SO AS TO BE ABLE TO WORD THE FORECAST AS SHOWERS/THUNDERSTORMS LIKELY. LATEST SPC OUTLOOK HAS FERGUS COUNTY UNDER A SLIGHT RISK OF SEVERE THUNDERSTORMS LATER THIS AFTERNOON AND EVENING. WILL MENTION A POSSIBILITY OF HAIL AND GUSTY WINDS FOR A PORTION OF SW AND CENTRAL MT INTO EARLY THIS EVENING. FORECAST FREEZING LEVELS GET LOW ENOUGH SUN THAT WILL NEED TO MENTION POSSIBILITY OF SNOW FOR AT LEAST THE HIGHER MOUNTAINS. WILL LOWER FORECAST HIGHS TODAY A LITTLE AT GTF AND HLN AND RAISE THEM SOME FOR LWT ZONE GROUPING. LOOKING AHEAD TO SUN LATEST ETA/NGM DEVELOP A CLOSED UPPER LOW OVER WY WITH FLOW ALOFT BACKING TO SE OVER THE PLAINS OF THE FORECAST AREA. AT THE SURFACE MODELS HAVE AN INVERTED SURFACE TROUGH FROM SE MT TO N CENTRAL MT. THIS POSITION IS FARTHER W THAN RUNS FROM LAST NIGHT. LATEST ETA/NGM DEVELOP SIGNIFICANT 12HR QPF VALUES OF NEAR AN INCH AND A HALF NEAR AND E OF THE SURFACE TROUGH AXIS FOR THE PERIOD 12Z SUN TO 00Z MON. BIG DIFFERENCES EXIST WITH THE POSITION OF THE UPPER LOW BY MON AFTERNOON AS THE LATEST ETA HAS THE UPPER LOW OVER SW SD WHILE THE 06Z AVN RUN HAD THE UPPER LOW OVER N CENTRAL MT. WILL BE INTERESTING TO SEE WHAT THE LATEST AVN DOES. BLANK EXTENDED...MRF AND EUROPEAN MEDIUM RANGE MODELS AGAIN IN GENERAL AGREEMENT. WILL CONTINUE WITH SOME LINGERING SHOWERS DAY 3 AS CLOSED UPPER LOW REMAINS OVER EASTERN MONTANA. DAYS 4 AND 5 APPEAR DRY AS LOW AMPLITUDE H5 RIDGE MOVES OVER THE AREA. SOUTHWEST FLOW ALOFT INCREASES A BIT DAYS 6 AND 7 AND WILL LEAVE MENTION OF ISOLATED SHOWERS. EMANUEL CCF NUMBERS GTF WW 073/036 060/034 062 08333 CTB WW 068/035 056/030 058 08222 HLN TT 070/042 060/036 062 08433 BZN TT 072/040 058/032 060 08555 WEY TT 065/032 054/026 056 08656 DLN TW 072/035 056/030 060 08423 HVR TT 072/042 062/035 062 08353 LWT TT 064/040 056/035 060 08565
Nearby
Severe Thunderstorm Warnings in Montana, 2001Every severe thunderstorm warning in 2001
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.