Alert archive / Montana / Tornado Warnings in 2001
Tornado Warning 12, NWS Billings, MT
NWS Billings, MT issued this tornado warning at Jul 18, 2001, 7:03 PM MDT for Fallon County, Montana. It was in force for 42 min. 1 report 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
- Jul 18, 2001, 7:03 PM MDT (01:03 UTC)
- Expired
- Jul 18, 2001, 7:45 PM MDT
- In force
- 42 min
- Issued by
- NWS Billings, MT
- Area
- Whole counties
County Fallon County, MT
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 18, 7:35 PM MDT | Hail 0.75 | Baker, MT |
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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jul 18, 4:15 PM MDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Glasgow Intl Airport, MT (KGGW), launched 00:00Z, 1.1 hours before the alert went out and 267 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
- 7 J/kg
- Mixed-layer CIN
- -42 J/kg
- Mixed-layer LCL
- 2608 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 8 m²/s²
- 0-3 km storm-relative helicity
- 110 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
WFUS55 KBYZ 190106
TORBIL
MTC025-190145-
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE BILLINGS MT
703 PM MDT WED JUL 18 2001
THE NATIONAL WEATHER SERVICE IN BILLINGS HAS ISSUED A
* TORNADO WARNING FOR...
SOUTHERN FALLON COUNTY IN SOUTHEAST MONTANA
* UNTIL 745 PM MDT
* AT 701 PM MDT...SEVERE WEATHER SPOTTERS REPORTED A FUNNEL CLOUD
6 MILES SOUTH OF WILLARD...OR ABOUT 20 MILES SOUTH OF
BAKER...MOVING EAST AT 25 MPH.
* THE THUNDERSTORM PRODUCING THIS FUNNEL CLOUD WILL REMAIN OVER
MAINLY RURAL AREAS OF...SOUTHERN FALLON COUNTY.
GO TO THE BASEMENT OR A SMALL INTERIOR ROOM ON THE LOWEST FLOOR!
$$
LAT...LON 4609 1040>5 4632 10406 4625 10441 4622 10470
4615 10469 4614 10452 4606 10452 4606 10439
4598 10436 4598 10416 4595 10412 4589 10413
4590 10406What 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 Jul 18, 1:55 PM MDT, 5 hours 8 minutes earlier.
Area forecast discussion, Jul 18, 1:55 PM MDT, 5 hours 8 minutes before
SOUTH CENTRAL AND SOUTHEAST MONTANA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BILLINGS MT
155 PM MDT WED JUL 18 2001
.THU AND FRI...
THUNDERSTORM PATTERN REMAINS IN PLACE. DEEP UPPER LOW SPINNING OVER
ALBERTA. THE LOW WAS NOT MOVING MUCH AND SENDING SHORTWAVE ENERGY AROUND
THE PERIPHERY OF IT. ONE SUCH WAVE MOVING INTO NORTHEAST MONTANA AT THE
MOMENT WITH ANOTHER CRUISING INTO EASTERN IDAHO. CU DEVELOPING OVER THE
MOUNTAINS. ATMOSPHERE DESTABILIZING WITH LI'S AROUND -4 AND CAPES AROUND
1200 JKG OVER SOUTHERN MONTANA. FLOW AT THE SURFACE PRETTY LIGHT...BUT
INCREASES UP THROUGH 600MB. STORMS SHOULD HAVE TILT AND WITH WET BULB
ZERO TEMPERATURES REMAINING LOW...HAIL A GOOD BET. THE SOUTHEAST WILL
HAVE TO OVERCOME CAPPING...BUT AS A SHORTWAVE MOVES IN THERE THIS
EVENING...THIS SHOULD BE DONE. WILL MENTION SEVERE IN THE ZONES.
MORE SHORTWAVES ROUND THE CANADIAN UPPER LOW AND SERVE TO ENHANCE THE
SOUTHWEST FLOW OVER THE STATE. NEXT WAVE PROGGED TO MOVE IN THURSDAY
AFTERNOON. ANOTHER UPSTREAM WAVE PROGGED INTO THE SOUTHWEST AROUND
MIDNIGHT THURSDAY NIGHT. THIS WAVE TRACKS INTO NORTHERN MONTANA
OVERNIGHT...SO COULD BE A NOCTURNAL EVENT. WILL LEAVE SCATTERED POPS IN.
THE SOUTHERN TAIL OF THE WAVE WILL LINGER IN THE SOUTHEAST THROUGH NOON.
WILL PROBABLY BE DRY MOST OF THE DAY FRIDAY. ANOTHER WEAK WAVE INVADES
THE SOUTHWEST FRIDAY AFTERNOON...BUT THIS WAVE IS PRETTY WEAK COMPARED
TO THE OTHER. WILL KEEP LOW SCATTERED POPS FRIDAY FOR THE MORNING
POSSIBILITY AND ALSO THE AFTERNOON WAVE AS THE ATMOSPHERE REMAINS VERY
UNSTABLE. HEIGHTS TO RISE A LITTLE FRIDAY AS THE NEXT UPPER LOW DEVELOPS
OVER WASHINGTON AND OREGON. WILL GO A LITTLE WARMER FRIDAY. HUMPHREY
.SAT...SUN...MON...TUE...WED...
THE UPPER LEVEL PATTERN WILL CONTINUE A MOIST UNSTABLE SOUTHWEST FLOW
ALOFT OVER THE NORTHERN ROCKIES INTO MONDAY AS AN UPPER TROUGH MOVES
ACROSS MONTANA. THIS KEEPS SCATTERED THUNDERSTORMS IN THE FORECAST
INTO MONDAY WHILE TEMPERATURES ARE VERY WARM. WEAK RIDGING THEN BEGINS
TO BUILD ACROSS THE AREA MONDAY THROUGH WEDNESDAY WITH TEMPERATURES
SLOWLY INCREASING WHILE CHANCES OF THUNDERSTORMS DIMINISH. THORICHT
THU FRI SAT SUN MON TUE WED
-----------------------------------------------------------
BIL 056/083 058/087 060/085 060/086 060/087 057/085 058/086
44/T 43/T 33/T 33/T 32/B 22/B 22/B
LVM 048/081 050/084 057/084 057/087 057/087 055/084 055/084
44/T 43/T 33/T 33/T 32/B 22/B 22/B
HDN 054/085 056/089 059/086 059/090 059/090 058/087 056/087
44/T 43/T 33/T 33/T 32/B 22/B 22/B
MLS 060/088 062/091 062/089 062/090 062/090 059/088 060/089
44/T 43/T 33/T 33/T 32/B 22/B 22/B
4BQ 059/087 061/090 061/088 061/091 061/091 058/087 059/087
44/T 43/T 33/T 33/T 32/B 22/B 22/B
BHK 058/087 060/090 060/087 060/090 060/090 056/088 057/088
44/T 43/T 33/T 33/T 32/B 22/B 22/B
SHR 052/085 054/089 058/085 058/086 058/088 056/086 056/086
44/T 43/T 33/T 33/T 32/B 22/B 22/BIn the hours before
Local storm report, Jul 18, 4:00 PM MDT, 3 hours 3 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BILLINGS, MT
400 PM MDT WED JUL 18 2001
TIME(MDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0720 PM 10 SE ROUNDUP MT 80 MPH TSTM WIND GUST
07/02/01 MUSSELSHELL LAW ENFORCEMENT REPORTED
TREES DOWN IN THE BULL
MOUNTAINS
0930 PM DECKER MT FLASH FLOODS
07/14/01 BIG HORN 145 FEET OF ROAD BED
WASHED OUT BENEATH THE
BURLINGTON/NORTHERN
RAILROAD TRACKS. 2 FEET OF
WATER OVER TRACKS. REPORTED
BY RAILROAD OFFICIAL.
0445 PM BOYD MT .75 INCH HAIL
07/17/01 CARBON REPORTED BY SPOTTERS
0430 PM 3 W PARK CITY MT .75 INCH HAIL
07/17/01 STILLWATER REPORTED BY SPOTTERS
0532 PM 10 W BILLINGS MT .75 INCH HAIL
07/17/01 YELLOWSTONE REPORTED BY NWS EMPLOYEE.
0545 PM BILLINGS MT FLASH FLOODS
07/17/01 YELLOWSTONE STREET FLOODING ON THE
SOUTH SIDE OF BILLINGS.
REPORTED BY NWS EMPLOYEE.
0700 PM 9.5 N HARDIN MT .75 INCH HAIL
07/17/01 BIG HORN REPORTED BY SPOTTERS
0200 AM 25 NW BAKER MT .75 INCH HAIL
07/18/01 FALLON REPORTED BY SPOTTERS
1235 AM 11 SE MILES CITY MT .75 INCH HAIL
07/18/01 CUSTER REPORTED BY SPOTTERS
1200 AM 1[0 NE MILES CITY MT .75 INCH HAIL
07/18/01 CUSTER REPORTED BY SPOTTERS
TJThe office that day
Everything else NWS Billings, MT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 18, 6:00 PM MDT | Severe Thunderstorm Warning | BYZ | Custer, Powder River | 60 min |
| Jul 18, 6:45 PM MDT | Severe Thunderstorm Warning | BYZ | Fallon | 60 min |
| Jul 18, 6:59 PM MDT | Severe Thunderstorm Warning | BYZ | Custer, Powder River | 61 min |
| Jul 18, 7:12 PM MDT | Flash Flood Warning | BYZ | Powder River | 2 hr |
| Jul 18, 7:42 PM MDT | Severe Thunderstorm Warning | BYZ | Carter | 63 min |
| Jul 18, 8:45 PM MDT | Severe Thunderstorm Warning | BYZ | Carter | 45 min |
| Jul 19, 5:14 PM MDT | Severe Thunderstorm Warning | BYZ | Carter | 61 min |
Nearby
Tornado Warnings in Montana, 2001Every tornado warning in 2001Tornadoes in 2001
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.