Alert archive / Montana / Severe Thunderstorm Warnings in 2000
Severe Thunderstorm Warning 79, NWS Billings, MT
NWS Billings, MT issued this severe thunderstorm warning at Jul 10, 2000, 6:39 PM MDT for Musselshell County, Montana. It was in force for 66 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 10, 2000, 6:39 PM MDT (00:39 UTC)
- Expired
- Jul 10, 2000, 7:45 PM MDT
- In force
- 66 min
- Issued by
- NWS Billings, MT
- Area
- Whole counties
County Musselshell County, MT
The radar
The Billings radar (KBLX), 73 km from the middle of the area, began a volume at 00:41 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 10, 1:00 PM MDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Great_falls, MT (KTFX), launched 00:00Z, 0.7 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
- 94 J/kg
- Mixed-layer CIN
- -7 J/kg
- Mixed-layer LCL
- 3158 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 1 m²/s²
- 0-3 km storm-relative helicity
- 105 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.1
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS55 KBYZ 110039 SVRBIL MTC065-110145- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE BILLINGS MT 639 PM MDT MON JUL 10 2000 THE NATIONAL WEATHER SERVICE IN BILLINGS HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTHEASTERN MUSSELSHELL COUNTY IN CENTRAL MONTANA * UNTIL 745 PM MDT * AT 639 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 8 MILES SOUTHWEST OF MELSTONE...OR ABOUT 27 MILES EAST OF ROUNDUP...MOVING NORTH AT 25 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... MELSTONE BY 650 PM MDT. $$ LAT...LON 4643 10809 4644 10783 4702 10790 4701 10823
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 10, 1:55 PM MDT, 4 hours 44 minutes earlier.
Area forecast discussion, Jul 10, 1:55 PM MDT, 4 hours 44 minutes before
SOUTH CENTRAL AND SOUTHEAST MONTANA FORECAST DISCUSSION NATIONAL WEATHER SERVICE BILLINGS MT 155 PM MDT MON JUL 10 2000 .TUE AND WED... THINGS COMING TOGETHER FOR ANOTHER ACTIVE NIGHT ACROSS THE FORECAST AREA. LAPS CAPES RUNNING FROM 1000 JKG OVER THE WEST TO 3500 JKG OVER THE EAST. LI'S BELOW -4 OVER ALL OF SOUTHERN MONTANA. EASTERLY UPSLOPE FLOW CONTINUES ACROSS SOUTHEAST MONTANA ENDING NEAR LVM. SHORTWAVE EJECTING OUT INTO IDAHO ALREADY SETTING OFF CONVECTION. LEFT QUAD OF EXIT REGION OF JET WORKING INTO THE AREA TO FEED OFF DEEP MOISTURE. STRONG STRAIGHT LINE SHEAR OVER SOUTH CENTRAL MONTANA AID IN ORGANIZED CONVECTION. WATCH BOX ALREADY OUT FOR SOUTH CENTRAL MONTANA...AND MAY NEED ONE FOR SOUTHEAST MONTANA...AS DIRECTIONAL SHEAR ENVIRONMENT BETTER. PRECIPITABLE WATER VALUES HIGH...SO HEAVY RAIN LIKELY WITH THUNDERSTORMS. WILL NEED TO WATCH FOR POSSIBLE FLOODING TONIGHT... ESPECIALLY IN NORTHERN AREAS. WILL HOLD OFF ON A FLASH FLOOD WATCH AS RAIN FROM LAST NIGHT WAS NOT WIDESPREAD. FLOW GOES ZONAL TUESDAY...WITH SHORTWAVE ENERGY SWINGING ACROSS NORTHERN MONTANA AS RIDGING BUILDS IN. SOME MONSOONAL MOISTURE GETS ENTRAINED ON THE BACK SIDE OF THE RIDGE AND MOVES NORTH TOWARD SOUTHWEST MONTANA. WILL KEEP ISOLATED POPS IN FOR SOUTH CENTRAL MONTANA AS MONSOONAL FLOW COULD BE ENOUGH TO SPARK CONVECTION AND SHIFT ACTIVITY EAST. THE SOUTHEAST SHOULD BE DRY. TEMPERATURES WILL GRADUALLY WARM INTO MID WEEK. HUMPHREY .THU...FRI...AND SAT... ALL MODELS IN GENERAL AGREEMENT WITH MAINLY WESTERLY FLOW OVER THE AREA ON THURSDAY AS U/L RIDGE BUILDS INTO MONTANA. BOTH THE AVN AND MRF BRING SHORTWAVE ENERGY THROUGH THE FLOW SO CURRENT FORECAST FOR CHANCE OF THUNDER LOOKS GOOD. BOTH THE MRF AND ECMWF DROP UPPER LEVEL TROUGH INTO PACIFIC NORTHWEST AREA THURSDAY INTO FRIDAY. THIS WILL TURN OUR FLOW TOWARDS THE SOUTHWEST ONCE AGAIN...SO WILL CONTINUE CHANCE OF THUNDERSTORMS THROUGH SATURDAY...EVEN THOUGH MID LEVELS MAY BE CAPPED OVER THE CWA. AS FOR TEMPERATURES...MRF BUILDS IN 700MB TEMPERATURES IN THE 14 TO 18 DEGREE RANGE FOR ALL THREE DAYS. SINCE MRF USUALLY TENDS TO EXAGGERATE THE SITUATION..WILL COOL MRF 700MB TEMPERATURES A COUPLE OF DEGREES TO EXTRACT TEMPERATURES...WHICH STILL TRANSLATES INTO HIGHS IN THE 90S TO AROUND 100 DEGREES. ZELTWANGER/THORICHT BIL UBTBB 059/088 061/091 062/094 062/094 060/093 554222 58 LVM BBTBB 055/086 057/089 057/091 057/091 056/090 554222 58 HDN UBTBB 058/090 060/092 061/095 060/095 059/094 554222 58 MLS UUTBB 062/089 064/092 065/098 064/099 062/096 554000 58 4BQ UUTBB 061/088 063/091 063/097 061/098 061/095 554000 58 BHK UUTBB 059/087 061/090 062/095 060/096 060/093 554000 58 SHR UBTBB 055/087 057/090 057/095 057/095 057/094 553000 58
In the hours before
Local storm report, Jul 10, 1:15 PM MDT, 5 hours 24 minutes before
PRELIMINARY LOCAL STORM REPORT...CORRECTED HARDIN REPORTS REPORT...CORRECTED
NATIONAL WEATHER SERVICE BILLINGS MT
1040 PM MDT SUN JUL 9 2000
TIME(MDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0342 PM 6 E LAVINA MT 1.00 INCH HAIL
07/09/00 GOLDEN VALLEY
0350 PM 6 W ROUNDUP MT .75 INCH HAIL
07/09/00 MUSSELSHELL
0355 PM 1 W ROUNDUP MT 1.00 INCH HAIL
07/09/00 MUSSELSHELL
0356 PM ROUNDUP MT 1.75 INCH HAIL
07/09/00 MUSSELSHELL
0428 PM 5 S BIG TIMBER MT .75 INCH HAIL
07/09/00 SWEET GRASS
0445 PM MELSTONE MT 1.00 INCH HAIL
07/09/00 ROSEBUD
0515 PM ANGELA MT 2.75 INCH HAIL
07/09/00 ROSEBUD
0540 PM 6 SW MOLT MT .75 INCH HAIL
07/09/00 STILLWATER
0540 PM INGOMAR MT 2.00 INCH HAIL
07/09/00 ROSEBUD
0559 PM 10 SW BILLINGS MT 60 MPH TSTM WIND GUST
07/09/00 YELLOWSTONE
0600 PM 3 S ROCK SPRINGS MT 2.75 INCH HAIL
07/09/00 ROSEBUD
0604 PM 2 W BILLINGS MT .75 INCH HAIL
07/09/00 YELLOWSTONE
0609 PM 2 NE BILLINGS MT .75 INCH HAIL
07/09/00 YELLOWSTONE
0610 PM 3 NE BILLINGS MT 1.00 INCH HAIL
07/09/00 YELLOWSTONE
0622 PM 10 E BILLINGS MT .75 INCH HAIL
07/09/00 YELLOWSTONE
0625 PM ROCK SPRINGS MT 87 MPH TSTM WIND GUST
07/09/00 ROSEBUD 1 3/4 INCH HAIL ALSO
0628 PM ROCK SPRINGS MT 75 MPH TSTM WIND GUST
07/09/00 ROSEBUD WIND DESTROYED BARN
0628 PM 3 W BILLINGS MT 60 MPH TSTM WIND GUST
07/09/00 YELLOWSTONE
0648 PM POMPEYS PILLAR MT .75 INCH HAIL
07/09/00 YELLOWSTONE
0650 PM 20 NE MILES CITY MT 1.00 INCH HAIL
07/09/00 CUSTER
0700 PM 22 NE MILES CITY MT 2.00 INCH HAIL
07/09/00 CUSTER CROP AND WINDOW DAMAGE
FOOT OF WATER OVER FRONTAGE
ROAD ALONG INTERSTATE 94
0710 PM 8 N HARDIN MT 58 MPH TSTM WIND GUST
07/09/00 BIG HORN
0715 PM KINSEY MT 2.75 INCH HAIL
07/09/00 CUSTER
0720 PM 8 N HARDIN MT 58 MPH TSTM WIND GUST
07/09/00 BIG HORN TREE LIMBS DOWN
0725 PM 13 E MILES CITY MT 1.00 INCH HAIL 07/09/00
CUSTER
RASCH/MIDDENDORFThe office that day
Everything else NWS Billings, MT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 10, 6:18 PM MDT | Severe Thunderstorm Warning | BYZ | Custer | 27 min |
| Jul 10, 7:37 PM MDT | Severe Thunderstorm Warning | BYZ | Musselshell | 53 min |
Nearby
Severe Thunderstorm Warnings in Montana, 2000Every severe thunderstorm warning in 2000
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.