Alert archive / Montana / Severe Thunderstorm Warnings in 2002
Severe Thunderstorm Warning 32, NWS Great Falls, MT
NWS Great Falls, MT issued this severe thunderstorm warning at Jun 28, 2002, 9:33 PM MDT for Fergus County, Montana. It was in force for 27 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
- Jun 28, 2002, 9:33 PM MDT (03:33 UTC)
- Expired
- Jun 28, 2002, 10:00 PM MDT
- In force
- 27 min
- Issued by
- NWS Great Falls, MT
- Area
- Counties, with a storm outline in the text
County Fergus County, MT
The radar
The Billings radar (KBLX), 157 km from the middle of the area, began a volume at 03:37 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.
Did it verify
Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.
Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jun 28, 5:00 PM MDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Great_falls, MT (KTFX), launched 00:00Z, 3.6 hours before the alert went out and 101 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
- 2586 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 31 m²/s²
- 0-3 km storm-relative helicity
- 87 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 290333 SVRTFX MTC027-290415- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE GREAT FALLS MT 932 PM MDT FRI JUN 28 2002 THE NATIONAL WEATHER SERVICE IN GREAT FALLS HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... CENTRAL FERGUS COUNTY IN CENTRAL MONTANA THIS INCLUDES THE CITY OF LEWISTOWN * UNTIL 1000 PM MDT * AT 931 PM MDT...THE PUBLIC REPORTED A SEVERE THUNDERSTORM OVER LEWISTOWN...MOVING NORTHEAST AT 20 MPH. DAMAGING WINDS IN EXCESS OF 60 MPH HAVE BEEN REPORTED WITH THIS SEVERE THUNDERSTORM. FOR YOUR PROTECTION...GO INDOORS AND STAY AWAY FROM WINDOWS. IF YOU ARE CAUGHT OUTSIDE...MOVE TO A WELL PROTECTED AREA. LAT...LON 4711 10953 4699 10934 4723 10894 4743 10933
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 28, 8:45 PM MDT, 48 minutes earlier.
Area forecast discussion, Jun 28, 8:45 PM MDT, 48 minutes before
SOUTHWEST AND NORTH CENTRAL MONTANA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GREAT FALLS MT
845 PM MDT FRI JUN 28 2002
.SHORT TERM...SHOWERS AND THUNDERSTORMS MOVING ACROSS THE SOUTHERN
PART OF THE CWA AT THE TIME. THE SEVERE THREAT HAS ENDED FOR MOST OF
THE CWA...EXCEPT FOR JUDITH BASIN AND FERGUS COUNTIES. ONCE THE
STORMS MOVE OUT OF THE AREA WILL DROP POPS. WILL KEEP SCATTERED POPS
FOR THE FAR WESTERN ZONES. BEST CHANCE FOR SHOWERS AND THUNDERSTORMS
LOOK TO BE TOMORROW MORNING INTO THE AFTERNOON. CURRENT FORECAST
HANDLES THIS WELL.
EXTENDED...SOUTHWEST FLOW ALOFT WILL PERSIST OVER THE CWA THROUGH
THE EXTENDED PERIOD. TUESDAY LOOKS TO BE DRY AS A SHORT WAVE RIDGE
SWINGS THROUGH THE REGION. THERE WILL BE A CHANCE OF AFTERNOON AND
EVENING THUNDERSTORMS WEDNESDAY THROUGH FRIDAY UNDER THE SOUTHWEST
FLOW. TEMPERATURES DURING THIS PERIOD WILL REMAIN NEAR NORMAL. MEIER
.CCF NUMBERS
GTF NU 058/078 050/082 050 14240
BBBBB 080/045 078/048 082/048 080/048 080 00011133333
CTB NU 056/074 048/076 050 14430
BBBBB 075/042 077/046 078/048 078/048 078 00011133333
HLN NU 058/080 050/084 052 14441
BBBBB 082/050 080/050 082/050 082/050 082 00011133333
BZN BU 052/082 045/084 047 14232
BBBBB 082/045 077/049 080/049 080/049 081 00011133333
WEY BU 044/078 040/072 040 14221
BBBBB 073/041 076/045 075/045 075/045 075 00011133333
DLN NU 053/077 044/082 048 14231
BBBBB 081/045 078/048 080/050 082/050 082 00011133333
HVR NU 060/080 052/083 052 14230
BBBBB 081/048 078/050 082/050 082/050 082 00011133333
LWT NU 057/078 048/081 050 14441
BBBBB 079/044 079/050 080/050 080/050 080 00011133333=
.TFX...FLOOD WARNING CONTINUES FOR GLACIER COUNTY (ZONES 9 AND 10).In the hours before
Local storm report, Jun 28, 5:11 PM MDT, 4 hours 22 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREAT FALLS MT
511 PM MDT FRI JUN 28 2002
TIME(MDT) .....EVENT LOCATION..... ST ...EVENT/REMARKS...........
.....COUNTY LOCATION.....
0445 PM 9 SE DILLON MT 0.50 INCH HAIL
06/28/02 BEAVERHEAD
NNNNThe office that day
Everything else NWS Great Falls, MT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 28, 6:23 PM MDT | Severe Thunderstorm Warning | TFX | Gallatin | 37 min |
| Jun 28, 9:00 PM MDT | Tornado Warning | TFX | Fergus, Judith Basin | 30 min |
| Jun 28, 10:00 PM MDT | Severe Thunderstorm Warning | TFX | Fergus | 45 min |
Nearby
Severe Thunderstorm Warnings in Montana, 2002Every severe thunderstorm warning in 2002
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.