Alert archive / Montana / Tornado Warnings in 2003
Tornado Warning 1, NWS Billings, MT
NWS Billings, MT issued this tornado warning at Aug 8, 2003, 6:03 PM MDT for Musselshell 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 counties it named.
The facts
- Issued
- Aug 8, 2003, 6:03 PM MDT (00:03 UTC)
- Expired
- Aug 8, 2003, 6:30 PM MDT
- In force
- 27 min
- Issued by
- NWS Billings, MT
- Area
- Whole counties
County Musselshell County, MT
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Aug 8, 4:35 PM MDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Great_falls, MT (KTFX), launched 00:00Z, 0.1 hours before the alert went out and 198 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
- 190 J/kg
- Mixed-layer CIN
- -162 J/kg
- Mixed-layer LCL
- 3166 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- -44 m²/s²
- 0-3 km storm-relative helicity
- 93 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.3
The text
As transmitted, in the capitals the NWS used until 2016.
000 WFUS55 KBYZ 090003 TORBYZ MTC065-090030- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE BILLINGS MT 603 PM MDT FRI AUG 8 2003 THE NATIONAL WEATHER SERVICE IN BILLINGS HAS ISSUED A * TORNADO WARNING FOR... NORTHERN MUSSELSHELL COUNTY IN CENTRAL MONTANA THIS INCLUDES THE CITY OF ROUNDUP * UNTIL 630 PM MDT * AT 600 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A TORNADO 11 MILES EAST OF ROUNDUP...MOVING NORTHEAST AT 20 MPH. * THE TORNADO WILL REMAIN OVER MAINLY RURAL AREAS OF... CENTRAL MUSSELSHELL AND EASTERN MUSSELSHELL COUNTIES. GO TO THE BASEMENT OR A SMALL INTERIOR ROOM ON THE LOWEST FLOOR $$ LAT...LON 4660 10883 4634 10840 4646 10782 4675 10809 ARTHUR
What forecasters said that day
The local office's own words before this tornado 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 tornado warning went out at Aug 8, 2:50 PM MDT, 3 hours 13 minutes earlier.
Area forecast discussion, Aug 8, 2:50 PM MDT, 3 hours 13 minutes before
SOUTH CENTRAL AND SOUTHEAST MONTANA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BILLINGS MT
250 PM MDT FRI AUG 8 2003
.SHORT TERM...VALID FOR SAT AND SUN...
SOUTHWEST FLOW CONTINUES OVER THE AREA. CONVECTION HAS ALREADY FIRED
OVER THE SOUTHWEST MOUNTAINS. WILL UP POPS TO SCATTERED. THE ATMOSPHERE
HAS DRIED OUT SOME TODAY AS DEWPOINTS HAVE FALLEN ABOUT 10 DEGREES.
WOULD EXPECT A MIX OF WET AND DRY THUNDERSTORMS. POTENTIAL STILL THERE
FOR GUSTY WINDS WITH STORMS AS SOUNDINGS INVERTED V. WILL KEEP THE
MENTION GUSTY WINDS IN THE ZONES. UPPER RIDGE BUILDS SATURDAY AND THIS
WILL KEEP THE TEMPERATURES HOT. ANOTHER WAVE TO MOVE THROUGH SATURDAY
FOR ISOLATED THUNDERSTORMS. UPPER RIDGE BUILDS EVEN MORE SUNDAY AND THIS
SHOULD PUSH MOST ACTIVITY NORTH. A WEAK WAVE ALONG WITH SOME MID LEVEL
MOISTURE SLIDES INTO THE WEST. WILL PUT IN SOME ISOLATED MOUNTAIN
THUNDERSTORMS. SHOULD BE A LITTLE WARMER AS THE RIDGE AMPLIFIES.
HUMPHREY
.LONG TERM...VALID FOR MON...TUE...WED...THU...FRI...
LARGE DOME OF HIGH PRESSURE WILL REMAIN OVER THE FOUR CORNERS AREA EARLY
NEXT WEEK. AT THE SAME TIME...A STRONG TROUGH WILL BE OFF THE PACIFIC
NORTHWEST COAST. THESE TWO SYSTEMS WILL COMBINE TO BRING A SOUTHWEST
FLOW ALOFT ACROSS THE FORECAST AREA. A FEW DISTURBANCES WILL MOVE
THROUGH THIS FLOW MONDAY NIGHT AND TUESDAY...BUT MAINLY OVER SOUTHEAST
MONTANA. WILL ADD A CHANCE FOR A THUNDERSTORM TO THAT AREA MONDAY NIGHT
AND TUESDAY. BY MID WEEK...THE TROUGH OFF THE PACIFIC NORTHWEST WILL
MAKE ITS WAY INLAND AND BEGIN TO PUSH THE RIDGE AXIS SLIGHTLY EAST.
SOUTHWEST FLOW WILL BECOME MORE AMPLIFIED WITH THE MAIN ENERGY STAYING
TO OUR NORTHWEST. 850MB TEMPERATURES APPROACH 31C BY THE MIDDLE OF THE
WEEK AND WOULD NOT BE SURPRISED TO SEE READINGS AROUND 100 DEGREES
AGAIN. HOWEVER...CURRENT FORECAST OF TEMPERATURES IN THE MIDDLE 90S LOOK
GOOD. NO MAJOR CHANGES TO THE EXTENDED PACKAGE AND WILL KEEP CONDIDITONS
MAINLY DRY AND HOT. HOOLEY
SAT SUN MON TUE WED THU FRI
-----------------------------------------------------------
BIL 065/097 064/097 066/098 066/094 065/093 064/088 062/088
32/T 20/G 00/G 00/G 00/G 00/B 00/B
LVM 050/093 050/093 055/094 058/090 059/089 060/084 058/084
32/T 20/G 00/G 00/G 00/U 00/U 00/U
HDN 065/097 064/099 064/099 064/095 064/094 062/089 060/089
32/T 20/G 00/G 00/G 00/G 00/B 00/B
MLS 067/099 066/099 065/099 065/095 064/094 062/089 060/089
32/T 20/G 00/G 00/G 00/G 00/B 00/B
4BQ 065/096 064/099 064/099 064/095 063/094 061/089 059/089
32/T 20/G 03/T 30/G 00/G 00/B 00/B
BHK 066/094 065/097 062/097 062/092 062/091 060/086 058/086
32/T 20/G 00/G 00/G 00/G 00/B 00/B
SHR 062/097 061/098 063/098 063/094 062/093 060/088 058/088
32/T 20/G 03/T 30/G 00/G 00/B 00/B
.BYZ...
MT...NONE.
WY...NONE.Hazardous weather outlook, Aug 8, 4:32 PM MDT, 1 hour 31 minutes before
MTZ028>042-056>058-WYZ098-099-091100- HAZARDOUS WEATHER OUTLOOK...UPDATED NATIONAL WEATHER SERVICE BILLINGS MT 432 PM MDT FRI AUG 8 2003 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH CENTRAL...SOUTHEAST MONTANA AND NORTH CENTRAL WYOMING. .DAY ONE... A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR WHEATLAND...GOLDEN VALLEY...MUSSELSHELL...ROSEBUD...CUSTER AND FALLON COUNTIES UNTIL 1000 PM MDT. LARGE HAIL AND DAMAGING WIND WILL BE POSSIBLE WITH ANY THUNDERSTORMS THAT FORM IN AND NEAR THE WATCH AREA. A FIRE WEATHER WATCH FOR ISOLATED DRY THUNDERSTORMS HAS BEEN ISSUED FOR PARTS OF SOUTHERN MONTANA AND NORTHERN WYOMING FOR THIS AFTERNOON AND EVENING. PLEASE REFER TO GTFRFWBYZ FOR DETAILS. ALSO...THERE IS A SLIGHT RISK FOR SEVERE THUNDERSTORMS THIS AFTERNOON AND EVENING FOR OTHER PORTIONS OF SOUTH CENTRAL AND SOUTHEAST MONTANA. STRONG GUSTY WINDS AND LARGE HAIL MAY BE POSSIBLE WITH ANY SEVERE THUNDERSTORMS THAT DEVELOP. .DAY TWO THROUGH SEVEN... THERE IS A SLIGHT RISK FOR SEVERE THUNDERSTORMS ACROSS THE ENTIRE AREA SATURDAY AND SATURDAY EVENING. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES. SPRINGER
Nearby
Tornado Warnings in Montana, 2003Every tornado warning in 2003Tornadoes in 2003
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.