Alert archive / Montana / Tornado Warnings in 2001
Tornado Warning 15, NWS Billings, MT
NWS Billings, MT issued this tornado warning at Jul 25, 2001, 7:45 PM MDT for Fallon County, Montana. It was in force for 55 min. 2 reports 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 25, 2001, 7:45 PM MDT (01:45 UTC)
- Expired
- Jul 25, 2001, 8:40 PM MDT
- In force
- 55 min
- Issued by
- NWS Billings, MT
- Area
- Whole counties
County Fallon County, MT
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 25, 7:50 PM MDT | Tornado F1 | Baker, MT | NWS Post-Storm Damage Assessment Team determined F1 tornado 100 yards wide with a path length of 3/4 of a mile and was on the ground for 5 minutes. Around 6:45 p.m. on July 25th...a supercell thunderstorm developed in Prairie County, Montana and moved southeas |
| Jul 25, 8:30 PM MDT | Hail 1 | Baker, MT | Hail covered the ground |
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 25, 5:15 PM MDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Glasgow Intl Airport, MT (KGGW), launched 00:00Z, 1.8 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
- 633 J/kg
- Mixed-layer CIN
- -44 J/kg
- Mixed-layer LCL
- 1657 m above ground
- 0-6 km bulk shear
- 51 kt
- 0-1 km storm-relative helicity
- 77 m²/s²
- 0-3 km storm-relative helicity
- 194 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 1.6
The text
As transmitted, in the capitals the NWS used until 2016.
000 WFUS55 KBYZ 260147 TORBIL MTC025-260240- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE BILLINGS MT 745 PM MDT WED JUL 25 2001 THE NATIONAL WEATHER SERVICE IN BILLINGS HAS ISSUED A * TORNADO WARNING FOR... NORTHEASTERN FALLON COUNTY IN SOUTHEAST MONTANA THIS INCLUDES THE CITY OF BAKER * UNTIL 840 PM MDT * AT 739 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A POSSIBLE TORNADO 5 MILES NORTHEAST OF BAKER...MOVING SOUTHEAST AT 30 MPH. * THE TORNADO WILL REMAIN OVER MAINLY RURAL AREAS OF... EASTERN FALLON COUNTY...MAINLY NORTHEAST OF BAKER. * HAIL THE SIZE OF GOLFBALLS HAS BEEN REPORTED WITH THIS STORM. GO TO THE BASEMENT OR mA SMALL INTERIOR ROOM ON THE LOWEST FLOOR! $$ & A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM MDT WEDNESDAY EVENING FOR SOUTHEAST MONTANA. LAT...LON 4662 10436 4647 10452 4602 10377 4624 10353
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 Jul 25, 2:30 PM MDT, 5 hours 15 minutes earlier.
Area forecast discussion, Jul 25, 2:30 PM MDT, 5 hours 15 minutes before
SOUTH CENTRAL AND SOUTHEAST MONTANA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BILLINGS MT
230 PM MDT WED JUL 25 2001
.THU AND FRI...
ACTIVE SLIGHTLY CYCLONIC FLOW OVER AREA NEXT 2 DAYS.
TONIGHT...TOUGH FORECAST TO FIGURE EXACTLY WHEN AND WHERE CONVETION
WILL FIRE...WITH NO DEFINANT TRIGGER EVIDENT ON SATELLITE. 18Z MESO-ETA
PROGGING GREAT MOISTURE ADVECTION BACK INTO CENTRAL MONTANA TONIGHT.
CURRENT LAPS CAPES SHOWING SHARP GRADIENT FROM 1000 J/KG OVER MLS TO
2800 J/KG OVER BAKER. INSTABILITY NOT A PROBLEM AT THIS TIME EASTERN
ZONES...AND IF MESO-ETA VERIFIES WONT BE A PROBLEM FURTHER WEST LATER
TONIGHT. CURRENT VISIBLE IMAGERY SHOWING SEVERAL POSSIBLE BOUNDARIES
OVER SOUTHEAST MONTANA WHICH MAY HELP TO INITIATE CONVECTION. MESO-ETA
POINTING TO CONVECTION INITIATING IN CENTRAL MONTANA AND THEN MOVING
NORTHEAST. WILL LEAVE SEVERE WORDING OUT OF WESTERN ZONES AT THIS
TIME...AS NOT AS CONFIDENT THERE...BUT WILL LEAVE IN EASTERN ZONES.
THURSDAY LOOKS EVEN BETTER FOR SEVERE CONVECTION...ACROSS ENTIRE COUNTY
WARNING AREA. EASTERLY FLOW CONTINUES OVER NIGHT AND PUSHED INSTABILTY
BACK TO LVM. A BETTER TRIGGER IN THE FORM OF A 500 MB WAVE PUSHES INTO
AREA IN THE AFTERNOON TO TRIGGER ACTIVITY. WILL COVER WITH HIGH
SCATTERED POPS.
FRIDAY...SLIGHT RIDGING TRIES TO BUILD IN...BUT ATMOSPHERE REMAINS
UNSTABLE AND NOT CAPPED..FOR CONTINUED CHANCE OF CONVECTION. RASCH
.SAT...SUN...MON...TUE...WED...
SEE NO REASON TO CHANGE TO CURRENT THINKING OF THE EXTENDED. CONSENSUS
IS THAT THE MRF IS TOO PROGRESSIVE ON SENDING PACIFIC NORTHWEST TROUGH
THROUGH THE NORTHERN ROCKIES THIS WEEKEND. SINCE THE MRF IS THE ODD
MODEL OUT IN DOING THIS...WILL LEAN TOWARD THE ECMWF. THE CURRENT
EXTENDED WAS COMPOSED WITH THIS IDEA IN MIND...SO WILL NOT TINKER MUCH
WITH IT. UPPER RIDGE OVER THE SOUTHERN ROCKIES AND CENTRAL PLAINS SHOULD
KEEP IT FAIRLY WARM AND UNSETTLED. SOUTHWEST FLOW REMAINS ENTRENCHED
OVER MONTANA FOR AFTERNOON AND EVENING THUNDERSTORMS. HUMPHREY
THU FRI SAT SUN MON TUE WED
-----------------------------------------------------------
BIL 059/086 060/087 062/091 059/084 062/087 060/085 058/083
34/T 42/T 34/T 43/T 33/T 33/T 33/T
LVM 053/085 057/086 059/088 056/081 059/084 057/082 057/080
24/T 42/T 34/T 43/T 33/T 33/T 33/T
HDN 057/088 058/089 061/093 057/086 060/089 058/087 056/085
34/T 42/T 34/T 43/T 33/T 33/T 33/T
MLS 060/088 062/090 064/094 064/087 064/090 062/088 060/086
44/T 43/T 34/T 43/T 33/T 33/T 33/T
4BQ 060/087 062/088 063/093 063/086 063/089 061/087 059/085
44/T 43/T 34/T 43/T 33/T 33/T 33/T
BHK 059/086 061/087 061/091 060/084 060/087 059/085 057/083
44/T 43/T 34/T 43/T 33/T 33/T 33/T
SHR 057/088 058/085 059/091 057/085 059/088 057/086 055/084
44/T 42/T 34/T 43/T 33/T 33/T 33/TThe office that day
Everything else NWS Billings, MT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 25, 6:42 PM MDT | Tornado Warning | BYZ | Fallon | 63 min |
| Jul 25, 7:00 PM MDT | Severe Thunderstorm Warning | BYZ | Rosebud | 30 min |
| Jul 25, 7:30 PM MDT | Severe Thunderstorm Warning | BYZ | Rosebud | 30 min |
| Jul 25, 8:00 PM MDT | Severe Thunderstorm Warning | BYZ | Custer | 60 min |
| Jul 26, 11:00 AM MDT | Severe Thunderstorm Warning | BYZ | Golden Valley, Wheatland | 60 min |
| Jul 26, 12:00 PM MDT | Flash Flood Warning | BYZ | Golden Valley | 3 hr |
| Jul 26, 12:00 PM MDT | Severe Thunderstorm Warning | BYZ | Golden Valley | 60 min |
| Jul 26, 12:42 PM MDT | Severe Thunderstorm Warning | BYZ | Musselshell | 63 min |
| Jul 26, 12:59 PM MDT | Severe Thunderstorm Warning | BYZ | Golden Valley | 61 min |
| Jul 26, 1:46 PM MDT | Severe Thunderstorm Warning | BYZ | Musselshell | 59 min |
| Jul 26, 2:26 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn, Yellowstone | 64 min |
| Jul 26, 2:30 PM MDT | Severe Thunderstorm Warning | BYZ | Treasure | 60 min |
| Jul 26, 3:12 PM MDT | Severe Thunderstorm Warning | BYZ | Musselshell | 63 min |
| Jul 26, 3:27 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn | 93 min |
| Jul 26, 3:30 PM MDT | Severe Thunderstorm Warning | BYZ | Treasure | 60 min |
| Jul 26, 3:34 PM MDT | Severe Thunderstorm Warning | BYZ | Rosebud | 56 min |
| Jul 26, 3:37 PM MDT | Severe Thunderstorm Warning | BYZ | Carter | 53 min |
| Jul 26, 4:15 PM MDT | Severe Thunderstorm Warning | BYZ | Rosebud | 60 min |
| Jul 26, 5:15 PM MDT | Severe Thunderstorm Warning | BYZ | Rosebud | 60 min |
| Jul 26, 5:18 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn | 57 min |
| Jul 26, 5:52 PM MDT | Severe Thunderstorm Warning | BYZ | Custer | 58 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.