Alert archive / Montana / Severe Thunderstorm Warnings in 2002
Severe Thunderstorm Warning 12, NWS Billings, MT
NWS Billings, MT issued this severe thunderstorm warning at Jun 2, 2002, 3:28 PM MDT for Powder River County, Montana. It was in force for 47 min. 2 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Jun 2, 2002, 3:28 PM MDT (21:28 UTC)
- Expired
- Jun 2, 2002, 4:15 PM MDT
- In force
- 47 min
- Issued by
- NWS Billings, MT
- Area
- Counties, with a storm outline in the text
County Powder River County, MT
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 2, 3:35 PM MDT | Hail 0.88 | Biddle, MT | |
| Jun 2, 4:00 PM MDT | Thunderstorm Wind 60 E | Broadus, MT | Signs and small trees blown over |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.
The nearest sounding before it
Rapid City, SD (KUNR), launched 12:00Z, 9.5 hours before the alert went out and 262 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
- 1390 m above ground
- 0-6 km bulk shear
- 49 kt
- 0-1 km storm-relative helicity
- 160 m²/s²
- 0-3 km storm-relative helicity
- 237 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.7
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 Billings, MT wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 2, 2:26 PM MDT, 1 hour 2 minutes earlier.
Area forecast discussion, Jun 2, 2:26 PM MDT, 1 hour 2 minutes before
SOUTH CENTRAL AND SOUTHEAST MONTANA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BILLINGS MT
226 PM MDT SUN JUN 2 2002
.SHORT TERM...VALID FOR MON...TUE...WED...
TONIGHT & MON...UNSETTLED WEATHER WILL CONTINUE TONIGHT AND MONDAY.
ANOTHER TROUGH SITUATED ACROSS WESTERN WYOMING WILL MOVE NORTHEAST OVER
OUR FORECAST AREA THIS EVENING THROUGH TONIGHT. IN ADDITION...AN UPPER
LEVEL DISTURBANCE WILL MOVE OVER THE AREA DURING THIS TIME AS WELL.
THIS IS PRODUCING A LARGE AREA OF RAIN ACROSS THE WESTERN AND CENTRAL
ZONES THIS AFTERNOON AND WILL CONTINUE INTO THIS EVENING. A THUNDERSTORM
WILL ALSO BE POSSIBLE. HOWEVER...THE MOST FAVORABLE AREA FOR
THUNDERSTORMS WILL BE ACROSS SOUTHERN BIG HORN COUNTY AND POINTS EAST
AND SOUTH...WHERE ONE OR TWO STORMS MAY BE STRONG OR SEVERE.
MON THROUGH WED...ONCE THIS DISTURBANCE MOVES TO THE EAST LATE
TONIGHT...FLOW ALOFT WILL BECOME NW BY EARLY MONDAY MORNING. NW FLOW
WILL CONTINUE THROUGH WED WITH A FEW WEAK EMBEDDED SHORTWAVES MOVING
THROUGH IT. WILL CONTINUE WITH A CHANCE OF A SHOWER OR THUNDERSTORM
THROUGH TUES. TEMPS WILL REMAIN COOL THROUGH MONDAY BEFORE WARMING TO
AROUND 70 DEGREES ON TUE WITH LOWER TO MID 70S WED. HOOLEY
.LONG TERM...VALID FOR THU...FRI...SAT...SUN...
UPPER LEVEL RIDGE WILL STRETCH ACROSS EASTERN MONTANA ON THURSDAY IN
ADVANCE OF A SHORTWAVE TROUGH WHICH MOVES ACROSS THE STATE ON THURSDAY
NIGHT. ALL EXTENDED MODELS SUGGEST A DEEP TROUGH DEVELOPING OVER THE
PACIFIC NORTHWEST FRIDAY AND INTO SATURDAY...THEN SWINGS THIS TROUGH
ACROSS MONTANA ON SATURDAY AND SUNDAY. WILL INTRODUCE THE MENTION OF
SHOWERS ON SATURDAY AND SUNDAY AND KEEP TEMPERATURES ON THE COOL SIDE.
WILL KEEP TEMPERATURES SLIGHTLY ABOVE SEASONAL NORMS FOR THURSDAY
BEFORE SHOWING A SLIGHT COOLING TREND INTO THE WEEKEND. MEIER
MON TUE WED THU FRI SAT SUN
-----------------------------------------------------------
BIL 046/067 044/070 048/075 054/082 051/073 050/072 048/070
43/T 20/B 00/B 02/C 22/C 23/T 33/T
LVM 045/065 045/068 048/070 053/080 050/071 049/070 047/068
43/T 32/T 00/B 02/C 22/C 23/T 33/T
HDN 046/068 044/071 048/077 054/082 051/073 050/072 048/070
43/T 20/B 00/B 02/C 22/C 23/T 33/T
MLS 048/068 044/073 048/076 055/082 052/070 051/069 049/067
44/T 20/B 00/B 02/C 22/C 23/T 33/T
4BQ 048/068 044/072 048/076 055/082 052/070 051/069 049/067
44/T 20/B 00/B 02/C 22/C 23/T 33/T
BHK 048/066 044/069 048/075 055/082 052/070 051/069 049/067
44/T 20/B 00/B 02/C 22/C 23/T 33/T
SHR 046/066 042/071 048/076 050/081 047/070 046/069 044/067
43/T 20/B 00/B 02/C 22/C 23/T 33/T
.BYZ...
MT...FLOOD WARNING FOR PARK AND CARBON COUNTY THROUGH TUESDAY.
WY...SEVERE THUNDERSTORM WATCH FOR SHERIDAN COUNTY WYOMING UNTIL 8PM
TONIGHT.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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.