Alert archive / Montana / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 13, NWS Billings, MT

June 8, 2002Rosebud County, Montana

NWS Billings, MT issued this severe thunderstorm warning at Jun 8, 2002, 10:13 AM MDT for Rosebud County, Montana. It was in force for 62 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jun 8, 2002, 10:13 AM MDT (16:13 UTC)
Expired: Jun 8, 2002, 11:15 AM MDT
In force: 62 min
Issued by: NWS Billings, MT
Area: Whole counties

County Rosebud County, MT

The radar

The Billings radar (KBLX), 151 km from the middle of the area, began a volume at 16:16 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

Glasgow Intl Airport, MT (KGGW), launched 12:00Z, 4.2 hours before the alert went out and 221 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1983 m above ground
0-6 km bulk shear: 52 kt
0-1 km storm-relative helicity: 285 m²/s²
0-3 km storm-relative helicity: 484 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WUUS55 KBYZ 081613
SVRBYZ
MTC087-081715-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BILLINGS MT
1011 AM MDT SAT JUN 8 2002

THE NATIONAL WEATHER SERVICE IN BILLINGS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CENTRAL ROSEBUD COUNTY IN SOUTHEAST MONTANA
  THIS INCLUDES THE CITY OF FORSYTH

* UNTIL 1115 AM MDT

* AT 1011 AM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM WITH LARGE HAIL 23 MILES SOUTHWEST OF
  FORSYTH...OR ABOUT 15 MILES WEST OF COLSTRIP...MOVING NORTH AT 45
  MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
   FORSYTH BY 1040 AM MDT.

VERY LARGE HAIL IS POSSIBLE WITH THIS SEVERE THUNDERSTORM. IF YOU ARE
IN THE PATH OF THE STORM...PUT YOUR CAR IN A GARAGE AND MOVE TO A
SUBSTANTIAL SHELTER.

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 8, 9:31 AM MDT, 42 minutes earlier.

Area forecast discussion, Jun 8, 9:31 AM MDT, 42 minutes before

SOUTH CENTRAL AND SOUTHEAST MONTANA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BILLINGS MT
931 AM MDT SAT JUN 08 2002

.SHORT TERM...VALID FOR TDY...SUN...MON...

UPDATE FOR ZONES. NO UPDATE FOR AFP. NEW ETA AND MESO-ETA PUSHING
INSTABILITY AXIS FURTHER WEST. THIS LOOKS REASONABLE BASED ON STRONG
LOW LEVEL SOUTHEAST JET OVER SOUTHEAST MONTANA...ADVECTING MOISTURE INTO
THE AREA. DEW POINTS HAVE BEEN INCREASING OVER SE MT AND SHERIDAN
WYOMING AREA THIS MORNING. WILL UPDATE SHERIDAN FORECAST TO MENTION
POSSIBILITY OF SEVERE WEATHER THIS AFTERNOON AND EVENING. SURFACE
TROF EAST OF BILLINGS WILL MAINTAIN NORTHERLY FLOW OVER THE AREA.
ALTHOUGH SHOWERS AND THUNDERSTORMS WILL BE LIKELY...SEVERE WEATHER WILL
REMAIN EAST. BOTH ETA AND MESO-ETA ARE PROGGING CAPES TO AROUND 3000
J/KG BY THIS EVENING OVER SOUTHEAST MT ALONG WITH GOOD SPEED AND
DIRECTIONAL WIND SHEAR FOR POSSIBLE ISOLATED SUPERCELL DEVELOPMENT.
ENERGY MOVING IN FROM UPPER LOW OVER IDAHO IS BRINGING RAIN SHOWERS TO
LIVINGSTON. WILL DROP TEMPERATURES FOR LVM AS RAIN SHOULD CONTINUE MOST
OF THE DAY. WILL ALSO ADJUST WINDS UPWARD IN THE EAST. TEMPERATURES OUT
WEST ARE FAIRLY COOL AND SNOW IS POSSIBLE OVER THE HIGHER TERRAIN
TONIGHT. WILL WAIT FOR AFTERNOON PACKAGE TO TAKE A CLOSER LOOK AT
POSSIBLE SNOW AMOUNTS OVERNIGHT FOR THE MOUNTAINS. RICHMOND

.LONG TERM...VALID FOR TUE...WED...THU...FRI...
WILL BUMP UP POPS FOR TUESDAY AS STORM SYSTEM STILL LOOKS TO INFLUENCE
ZONES WITH INSTABILITY SHOWERS IN CYCLONIC FLOW AROUND LOW. OTHERWISE
WARMING AND DRYING TREND IN LATER PERIODS LOOK GOOD. SCARLETT

    TDY SUN     MON     TUE     WED     THU     FRI
-------------------------------------------------------
BIL 070 047/060 046/059 045/069 051/076 054/078 055/079
    7/T 77/W    64/W    43/W    30/B    00/B    00/B
LVM 059 041/055 041/054 043/068 049/073 052/075 053/076
    +/T 77/W    64/W    43/W    30/B    02/B    20/B
HDN 072 046/061 045/060 045/071 051/077 054/080 055/081
    7/T 77/W    64/W    43/W    30/B    00/B    00/B
MLS 074 051/066 049/062 045/069 051/075 054/078 055/079
    7/T 74/T    64/W    43/W    30/B    00/B    00/B
4BQ 078 052/070 048/063 043/070 049/076 052/079 053/080
    7/T 74/T    64/W    43/W    30/B    00/B    00/B
BHK 075 050/068 048/060 043/068 049/074 052/077 053/078
    7/T 74/T    64/W    43/W    30/B    00/B    00/B
SHR 075 049/067 044/061 043/069 049/073 052/078 053/079
    6/T 74/T    64/W    43/W    30/B    00/B    00/B

.BYZ...
MT...FLOOD WATCH UNTIL UNTIL MONDAY JUNE 10TH FOR PARTS OF PARK AND
     CARBON COUNTIES..
WY...NONE.

In the hours before

Special weather statement, Jun 8, 6:03 AM MDT, 4 hours 10 minutes before

MTZ028>042-056>058-WYZ098-099-082200-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BILLINGS MT
603 AM MDT SAT JUN 8 2002

...SEVERE THUNDERSTORMS POSSIBLE TODAY AND EARLY THIS EVENING IN
SOUTHEAST MONTANA AND SHERIDAN COUNTY WYOMING...

THUNDERSTORMS ARE EXPECTED TO DEVELOP IN SOUTHERN MONTANA AND
NORTHEAST WYOMING THIS AFTERNOON AND EVENING. A FEW OF THESE STORMS
ARE EXPECTED TO BECOME SEVERE AS THEY MOVE INTO THE PLAINS OF
SOUTHEAST MONTANA...PRODUCING LARGE HAIL AND DAMAGING WINDS.

THE STORM PREDICTION CENTER IN NORMAN OKLAHOMA HAS INCLUDED CARTER
AND POWDER RIVER COUNTIES IN A MODERATE RISK AREA FOR SEVERE
THUNDERSTORMS. THE PRIMARY THREAT WILL BE LARGE HAIL THROUGH EARLY
THIS EVENING.

WCJIN-WYNW-WYNE

SCARLETT/SPRINGER

The office that day

Everything else NWS Billings, MT issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 8, 1:07 PM MDT	Severe Thunderstorm Warning	BYZ	Powder River, Rosebud	38 min
Jun 8, 1:42 PM MDT	Severe Thunderstorm Warning	BYZ	Custer, Powder River	63 min
Jun 8, 3:41 PM MDT	Severe Thunderstorm Warning	BYZ	Rosebud	64 min
Jun 8, 4:09 PM MDT	Severe Thunderstorm Warning	BYZ	Custer, Rosebud	36 min
Jun 8, 4:21 PM MDT	Severe Thunderstorm Warning	BYZ	Custer	24 min
Jun 8, 4:45 PM MDT	Severe Thunderstorm Warning	BYZ	Custer	60 min
Jun 8, 4:55 PM MDT	Severe Thunderstorm Warning	BYZ	Custer, Powder River	65 min
Jun 8, 5:00 PM MDT	Severe Thunderstorm Warning	BYZ	Custer, Powder River	60 min
Jun 8, 5:02 PM MDT	Severe Thunderstorm Warning	BYZ	Powder River	58 min
Jun 8, 5:08 PM MDT	Severe Thunderstorm Warning	BYZ	Fallon	52 min

Nearby

Severe Thunderstorm Warnings in Montana, 2002 Every 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.