Alert archive / Montana / Severe Thunderstorm Warnings in 2003
Severe Thunderstorm Warning 33, NWS Billings, MT
NWS Billings, MT issued this severe thunderstorm warning at Jul 8, 2003, 5:02 PM MDT for Custer County, Montana. It was in force for 58 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
- Jul 8, 2003, 5:02 PM MDT (23:02 UTC)
- Expired
- Jul 8, 2003, 6:00 PM MDT
- In force
- 58 min
- Issued by
- NWS Billings, MT
- Area
- Whole counties
County Custer County, MT
The radar
The Glasgow radar (KGGW), 231 km from the middle of the area, began a volume at 23:02 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jul 8, 2:05 PM MDT | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Glasgow Intl Airport, MT (KGGW), launched 12:00Z, 11.0 hours before the alert went out and 232 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
- 1591 m above ground
- 0-6 km bulk shear
- 53 kt
- 0-1 km storm-relative helicity
- 147 m²/s²
- 0-3 km storm-relative helicity
- 263 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 Jul 8, 2:29 PM MDT, 2 hours 33 minutes earlier.
Area forecast discussion, Jul 8, 2:29 PM MDT, 2 hours 33 minutes before
SOUTH CENTRAL AND SOUTHEAST MONTANA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BILLINGS MT
229 PM MDT TUE JUL 08 2003
.SHORT TERM...VALID FOR WED AND THU...
UPPER WAVE IS HEADING THROUGH THE WESTERN ZONES EARLY THIS AFTERNOON.
CLOUDS EARLIER IN THE DAY HELPED KEEP TEMPERATURES FROM REACHING THE
80S IN MOST LOCATIONS...THUS THE ENVIRONMENT IS FAIRLY CAPPED. 700MB
TEMPS WERE 10C PER 18Z ACARS...WHICH IS CLOSE THE ETA. 700MB TEMPS
SHOULD DROP ANOTHER 4C THIS AFTERNOON...BUT IT MAY BE TOO LATE FOR
MANY SIGNIFICANT STORMS TO DEVELOP WEST OF ROSEBUD COUNTY. SOUTHEAST
WINDS GUSTING TO 35 MPH NEAR BHK ALSO HELP KEEPED THE INVERSION
HOLDING STRONG THERE DESPTIE MORE SUNSHINE. SO AS THE WAVE HEADS EAST
OVER THE AREA...IT APPEARS THE STORMS WILL REMAIN ELEVATED IN NATURE
OVER THE NORTH HALF OF THE CWA. STRONG SHEAR WILL BE PRESENT ALONG WITH
A QUICK BURST OF DECENT ASCENT. THIS MAY AID IN AN ISOLATED SEVERE
STORM OVER THE NE CORNER. THE COLD FRONT APPEARS TO BE WORKING ITS WAY
THROUGH TREASURE AND BIG HORN COUNTIES PER 20Z RADAR. THIS FEATURE WILL
LIKELY BE THE FOCUS FOR ANY CONVECITON THAT CAN GET GOING IN THE
SOUTHEAST CORNER. TEMPERATURES HAVE WARMED INTO THE 80S AHEAD OF
THE FRONT ONLY IN POWDER RIVER...SHERIDAN...AND CARTER. THUS THEY HAVE
THE BEST SHOT OF SEEING SIGNIFICANT STORMS. SPC ISSUED A TORNADO WATCH
FOR POWDER RIVER AND CARTER COUNTIES FOR THIS EVENING.
DRIER WEATHER IN STORE FOR WED IN THE WAKE OF THE SHORT WAVE.
TEMPERATURES WILL REBOUND SOME BEHIND THIS WAVE TO NEAR NORMAL VALUES.
THE AIRMASS LOOKS TOO DRY/STABLE FOR TSTORMS. MOORE
.LONG TERM...VALID FOR FRI...SAT...SUN...MON...TUE...
ONLY CHANGE TO EXTENDED FORECAST WAS TO RAISE TEMPERATURES A COUPLE OF
DEGREES ON SATURDAY AS HIGH AMPLITUDE UPPER RIDGE AND ACCOMPANYING
THERMAL RIDGE BUILD INTO THE FORECAST AREA. GFS WAS CONSISTENT WITH
YESTERDAY/S RUN AND SHOWED STRONG UPPER RIDGE WITH HIGH PRESSURE OVER
FOUR CORNERS REGION AND A WARM AIRMASS PERSISTING OVER THE
FORECAST AREA INTO SUNDAY. A SHORTWAVE WAS PROGGED TO MOVE E ALONG
THE CANADIAN BORDER ON MONDAY FLATTENING THE RIDGE. THIS FEATURE WILL
BRING A CHANCE OF THUNDERSTORMS TO THE AREA. THE RIDGE WILL REBUILD
OVER THE REGION ON TUESDAY. NORMAL TO ABOVE NORMAL TEMPERATURES
WILL OCCUR THROUGH THE PERIOD. ARTHUR
WED THU FRI SAT SUN MON TUE
-----------------------------------------------------------
BIL 055/084 055/084 057/088 059/090 059/090 057/086 052/084
00/U 00/U 00/U 00/G 00/G 03/T 30/B
LVM 049/086 048/086 051/086 053/089 051/089 050/085 045/084
00/U 00/U 00/U 00/U 00/U 03/T 30/B
HDN 054/085 055/085 056/089 059/091 059/090 057/088 052/085
30/U 00/U 00/U 00/G 00/G 03/T 30/B
MLS 055/083 055/085 054/088 058/090 059/089 057/087 052/083
40/U 00/U 00/U 00/G 00/U 03/T 30/B
4BQ 056/086 054/088 054/088 057/090 057/090 057/088 052/084
40/U 00/U 00/U 00/G 00/G 03/T 30/B
BHK 055/081 054/084 052/086 057/088 059/088 056/086 051/082
60/B 00/U 00/U 00/U 00/U 03/T 30/B
SHR 052/084 052/084 053/088 056/090 056/090 053/088 048/084
40/U 00/U 00/U 00/G 00/G 03/T 30/B
.BYZ...
MT...SEVERE THUNDERSTORM (WCN) WATCH UNTIL 600 PM MDT TUESDAY FOR
ZONES MTC003...MTC065...MTC087...MTC103.
TORNADO (WCN) WATCH UNTIL 900 PM MDT TUESDAY FOR ZONES MTC011...
MTC075.
WY...NONE.Hazardous weather outlook, Jul 8, 4:24 PM MDT, 38 minutes before
MTZ028>042-056>058-WYZ098-099-091100- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE BILLINGS MT 424 PM MDT TUE JUL 8 2003 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH CENTRAL...SOUTHEAST MONTANA AND NORTH CENTRAL WYOMING. .DAY ONE... A SEVERE THUNDERSTORM WATCH CONTINUES FOR ROSEBUD COUNTY UNTIL 600 PM MDT. WIND GUSTS IN EXCESS OF 65 MPH AND HAIL THE SIZE OF QUARTERS WILL BE POSSIBLE WITH SEVERE THUNDERSTORMS. THE STORM PREDICTION CENTER HAS ALSO ISSUED A TORNADO WATCH FOR SOUTHEASTERN MONTANA UNTIL 900 PM MDT. THIS WATCH INCLUDES CARTER AND POWDER RIVER COUNTIES. LARGE HAIL...DAMAGING WINDS...AND A FEW TORNADOES WILL BE POSSIBLE WITH SEVERE THUNDERSTORMS IN THESE AREAS. .DAYS TWO THROUGH SEVEN... NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NEEDED THIS AFTERNOON AND EVENING. JZ
In the hours before
Local storm report, Jul 8, 12:43 PM MDT, 4 hours 19 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BILLINGS, MT
1243 PM MDT TUE JUL 8 2003
TIME(MDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
1000 PM 30 SE ASHLAND MT 1.75 INCH HAIL
07/07/03 POWDER RIVERSpecial weather statement, Jul 8, 2:17 PM MDT, 2 hours 45 minutes before
MTZ028-034-035-039-041-042-056-082115- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BILLINGS MT 217 PM MDT TUE JUL 8 2003 ...THE SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 600 PM MDT FOR GOLDEN VALLEY...WHEATLAND...YELLOWSTONE...SWEET GRASS...STILLWATER AND CARBON COUNTIES HAS BEEN CANCELLED... THE SEVERE THUNDERSTORMS HAVE MOVED OUT OF THE AREA. THEREFORE...THE SEVERE THUNDERSTORM WATCH HAS BEEN CANCELLED. ARTHUR
Local storm report, Jul 8, 3:22 PM MDT, 1 hour 40 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BILLINGS, MT
322 PM MDT TUE JUL 8 2003
TIME(MDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0255 PM CROW AGENCY MT .75 INCH HAIL
07/08/03 BIG HORN
KMRSpecial weather statement, Jul 8, 4:22 PM MDT, 40 minutes before
MTZ029-030-038-057-082315- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BILLINGS MT 422 PM MDT TUE JUL 8 2003 ...THE SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 600 PM MDT FOR MUSSELSHELL...TREASURE AND BIG HORN COUNTIES HAS BEEN CANCELLED... THE SEVERE THUNDERSTORMS HAVE MOVED OUT OF THE AREA. THEREFORE...THE SEVERE THUNDERSTORM WATCH HAS BEEN CANCELLED. ARTHUR
The office that day
Everything else NWS Billings, MT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 7, 8:10 PM MDT | Severe Thunderstorm Warning | BYZ | Powder River | 65 min |
| Jul 7, 9:17 PM MDT | Severe Thunderstorm Warning | BYZ | Carter | 58 min |
| Jul 7, 9:50 PM MDT | Severe Thunderstorm Warning | BYZ | Powder River | 55 min |
| Jul 7, 11:48 PM MDT | Severe Thunderstorm Warning | BYZ | Carbon | 27 min |
| Jul 8, 2:49 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn | 56 min |
| Jul 8, 3:35 PM MDT | Severe Thunderstorm Warning | BYZ | Powder River | 55 min |
| Jul 8, 4:52 PM MDT | Severe Thunderstorm Warning | BYZ | Powder River | 53 min |
| Jul 8, 5:13 PM MDT | Severe Thunderstorm Warning | BYZ | Carter | 62 min |
Nearby
Severe Thunderstorm Warnings in Montana, 2003Every severe thunderstorm warning 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; radar from the NEXRAD Level II archive.