Alert archive / Montana / Severe Thunderstorm Warnings in 2000
Severe Thunderstorm Warning 15, NWS Great Falls, MT
NWS Great Falls, MT issued this severe thunderstorm warning at Jun 15, 2000, 5:10 PM MDT for Chouteau County, Judith Basin County, Montana. It was in force for 35 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 15, 2000, 5:10 PM MDT (23:10 UTC)
- Expired
- Jun 15, 2000, 5:45 PM MDT
- In force
- 35 min
- Issued by
- NWS Great Falls, MT
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
Counties Chouteau County, MT, Judith Basin County, MT
The radar
The Great Falls radar (KTFX), 68 km from the middle of the area, began a volume at 23:10 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, 11.2 hours before the alert went out and 9 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
- 726 m above ground
- 0-6 km bulk shear
- 48 kt
- 0-1 km storm-relative helicity
- -110 m²/s²
- 0-3 km storm-relative helicity
- 80 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
998 WUUS55 KTFX 152311 SVRGTF MTC015-045-152345- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE GREAT FALLS MT 510 PM MDT THU JUN 15 2000 THE NATIONAL WEATHER SERVICE IN GREAT FALLS HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTHWESTERN JUDITH BASIN COUNTY IN MONTANA SOUTH CENTRAL CHOUTEAU COUNTY IN NORTH CENTRAL MONTANA * UNTIL 545 PM MDT * AT 500 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM OVER SOUTH CENTRAL CHOUTEAU COUNTY...OR ABOUT 35 MILES NORTHWEST OF STANFORD...MOVING SOUTH AT 30 MPH. * THE SEVERE THUNDERSTORM WILL BE OVER... RURAL SOUTHERN CHOUTEAU COUNTY AT 520 PM MDT RURAL NORTHERN JUDITH BASIN COUNTY AT 540 PM MDT HAIL UP TO DIME SIZE...3/4 INCHES IN DIAMETER CAN BE EXPECTED WITH THIS STORM. IF YOU ARE IN THE PATH OF THE STORM...PUT YOUR CAR IN A GARAGE AND MOVE TO A SUBSTANTIAL SHELTER. 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 4763 11047 4759 11070 4717 11052 4721 11024
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 15, 3:00 PM MDT, 2 hours 10 minutes earlier.
Area forecast discussion, Jun 15, 3:00 PM MDT, 2 hours 10 minutes before
SOUTHWEST AND NORTH CENTRAL MONTANA FORECAST DISCUSSION NATIONAL WEATHER SERVICE GREAT FALLS MT 300 PM MDT THU JUN 15 2000 PROGS SHOW A MOIST TROUGH IN AREA INTO FRIDAY WITH MAIN VORTICITY MAXIMUM MOVING SOUTH OUT OF CANADA INTO NORTHEAST MONTANA FRIDAY NIGHT. WEAK SHORT WAVE RIDGE MOVING INTO WESTERN MONTANA SATURDAY FOR WARMER TEMPERATURES AND LESS CHANCE OF DIURNAL SHOWERS. AIR MASS MOIST AND A LITTLE UNSTABLE FOR SHOWERS WITH ISOLATED AFTERNOON AND EVENING THUNDERSTORMS. OARD EXTENDED DISCUSSION...MODELS CONTINUE TO BE FAIRLY CONSISTENT IN THE OVERALL SOLUTION IN THE MEDIUM RANGE. MRF IS A LITTLE MORE AMPLIFIED WITH THE STRONG SHORTWAVE FOR EARLY NEXT WEEK BUT ALL NOT ENOUGH TO DEFER FROM THE OVERALL TREND. WEAK SHORTWAVE RIDGING WILL PERSIST FOR SUNDAY BEFORE THE AFOREMENTIONED SHORTWAVE APPROACHES FOR EARLY NEXT WEEK. WAVE CRASHES ON SHORE EARLY MONDAY AND SWINGS SOUTHEASTWARD ACROSS SOUTHERN WYOMING. TROF DEEPENS OVER THE REGION LATE MONDAY SO SHOWERS LOOK LIKELY AND THUNDERSTORMS POSSIBLE IN THE INCREASINGLY UNSTABLE AIRMASS. ANY INSOLATION EARLY MONDAY WILL HELP THINGS ALONG EVEN MORE. WET WEATHER WILL CONTINUE MONDAY NIGHT INTO TUESDAY MORNING AS THE STRONG TROF PULL EAST. AIRMASS DOES DRY OUT LATE TUESDAY AND WILL WORD AS SUCH. SEASONAL TEMPS FOR SUNDAY WILL BE FOLLOWED BY ANOTHER SHOT OF COOLER AIR. GOUDSWARD CCF NUMBERS GTF TE 040/057 040/065 045 166643 CTB TE 037/055 037/062 042 166643 - HLN TE 042/060 040/068 046 164643 BZN TE 040/057 038/066 043 165653 WEY TE 033/052 030/062 032 165653 DLN TB 042/060 040/068 045 163642 HVR TE 043/056 043/065 046 166654 LWT TE 038/054 038/062 041 167754
The office that day
Everything else NWS Great Falls, MT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 15, 4:49 PM MDT | Severe Thunderstorm Warning | TFX | Cascade, Teton | 26 min |
Nearby
Severe Thunderstorm Warnings in Montana, 2000Every severe thunderstorm warning in 2000
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.