Alert archive / Montana / Tornado Warnings in 1996

Tornado Warning 9, NWS Billings, MT

July 19, 1996Rosebud County, Montana

NWS Billings, MT issued this tornado warning at Jul 19, 1996, 8:50 PM MDT for Rosebud County, Montana. It was in force for 25 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 19, 1996, 8:50 PM MDT (02:50 UTC)
Expired
Jul 19, 1996, 9:15 PM MDT
In force
25 min
Issued by
NWS Billings, MT
Area
Whole counties

County Rosebud County, MT

The radar

The Billings radar (KBLX), 151 km from the middle of the area, began a volume at 02:50 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 nearest sounding before it

Glasgow Intl Airport, MT (KGGW), launched 00:00Z, 2.8 hours before the alert went out and 221 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.

Skew-T log-pSkew-T log-p diagram, Glasgow Intl Airport, MT at 00:00Z on 1996-07-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 294 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Glasgow Intl Airport, MT at 00:00Z on 1996-07-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 133 square meters per square second.1939587897117Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
294 J/kg
Mixed-layer CIN
-193 J/kg
Mixed-layer LCL
1710 m above ground
0-6 km bulk shear
70 kt
0-1 km storm-relative helicity
133 m²/s²
0-3 km storm-relative helicity
219 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KBIL 200249
TORBIL
MTC087-200315-
 
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE BILLINGS MT
850 PM MDT FRI JUL 19 1996
 
THE NATIONAL WEATHER SERVICE IN BILLINGS HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL  915 PM MDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN SOUTHEAST MONTANA
 
   ...CENTRAL ROSEBUD COUNTY
 
AT 845 PM BILLINGS DOPPLER RADAR INDICATED A POSSIBLE TORNADO 10 MILES
SOUTH OF FORSYTH OR 10 MILES NORTH OF COLSTRIP. THE THUNDERSTORM
ASSOCIATED WITH THIS POTENTIAL TORNADO WAS MOVING NORTHEAST AT 25 MPH.
THIS THUNDERSTORM WILL MOVE THROUGH THE TOWN OF ROSEBUD BY 915 PM.
 
IF YOU ARE IN THE PATH OF A TORNADO...THE SAFEST PLACE IS A
BASEMENT.  GET UNDER A WORKBENCH OR PIECE OF STURDY FURNITURE.
IF NO BASEMENT IS AVAILABLE...SEEK SHELTER IN AN INTERIOR ROOM
SUCH AS A CLOSET ON THE LOWEST FLOOR.  USE BLANKETS...PILLOWS...
OR CUSHIONS TO COVER YOUR BODY.  AVOID WINDOWS.
 
KWM

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 19, 7:56 PM MDT, 54 minutes earlier.

Area forecast discussion, Jul 19, 7:56 PM MDT, 54 minutes before
TWO DISTINCT AREAS OF CONVECTION HAVE BEEN DEVELOPING LAST HOUR WITH
INCREASED ALARMS WITH WEAK MESOS ON 88D. MORE FAVORABLE AREA IN TROF
BETWEEN BILLINGS AND MILES CITY WHERE MOISTURE CONVERGENCE COMBINING
WITH S/WV ENERGY TO ENHANCE CONVECTION. WOULD EXPECT SVR STORMS TO
START DEVELOPING SOON. AGREE WITH SPC ON STATUS REPORT TO KEEP TOR
WATCH GOING. MODIFYING KGGW 00Z RAOBS SHOWS VERY UNSTABLE AIR WITH
NICE DRY PUNCH AT H7. SPEED SHEAR ALSO NOTED ABOVE BOUNDARY LAYER.
OTHER AREA OF CONVECTION IN WEAK SFC CONVERGENCE AREA NEAR LEWISTOWN
DOWN TO NEAR LVM. DO NOT EXPECT SVR WITH THIS SYSTEM. DO NOT SEE MUCH
REASON TO ADJUST NUMBERS...BUT WILL ADJUST A FEW POPS TO CONFORM ON
CURRENT TRENDS. SCARLETT

BIL 2110 055/082/055/082      MLS 4211 062/084/058/082
LVM 2110 049/078/047/080      4BQ 4211 060/085/056/083
HDN 3110 052/083/050/083      BKR 3211 064/085/056/083

In the hours before

Special weather statement, Jul 19, 7:03 PM MDT, 1 hour 47 minutes before
MTZ007-009-200200-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BILLINGS MT
703 PM MDT FRI JUL 19 1996

...STRONG THUNDERSTORMS ARE DEVELOPING OVER SOUTH-CENTRAL MONTANA...
...A TORNADO WATCH IS IN EFFECT UNTIL MIDNIGHT FOR PORTIONS OF
EXTREME EASTERN MONTANA...

AT 700 PM BILLINGS DOPPLER RADAR INDICATED A STRONG THUNDERSTORM
DEVELOPING 50 MILES SOUTH OF BILLINGS NEAR THE TOWN OF WARREN IN CARBON
COUNTY.  THIS STORM WAS MOVING NORTHEAST AT 30 MPH AND WILL AFFECT:

BIGHORN RECREATION AREA          BY 730 PM
FORT SMITH                       BY 800 PM

BRIEF HEAVY RAIN...SMALL HAIL...GUSTY WINDS...AND DEADLY LIGHTNING WILL
OCCUR WITH THIS STORM.

STAY TUNED TO NOAA WEATHER RA$DIO OR YOUR LOCAL MEDIA FOR FURTHER
INFORMATION ON THIS DEVELOPING WEATHER SITUATION.

KWM
Special weather statement, Jul 19, 8:16 PM MDT, 34 minutes before
MTZ007-200315-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BILLINGS MT
816 PM MDT FRI JUL 19 1996

...STRONG THUNDERSTORMS DEVELOPING OVER NORTHERN SWEETGRASS AND
WHEATLAND COUNTIES...

AT 810 PM BILLINGS DOPPLER RADAR INDICATED A LINE OF STRONG
THUNDERSTORMS OVER NORTHERN SWEETGRASS AND WHEATLAND COUNTIES.  THE
LINE OF STORMS STRETCHED FROM 15 MILES NORTHWEST OF BIG TIMBER TO 10
MILES NORTHEAST OF HARLOWTON.  THESE STORMS ARE MOVING NORTHEAST AT
30 MPH.  BRIEF HEAVY RAIN...GUSTY WINDS...SMALL HAIL...AND DEADLY
LIGHTNING WILL BE ASSOCIATED WITH THESE STORMS.

KWM

The office that day

Everything else NWS Billings, MT issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 19, 8:00 PM MDTSevere Thunderstorm WarningBYZRosebud, Treasure60 min
Jul 19, 9:20 PM MDTSevere Thunderstorm WarningBYZCuster, Rosebud40 min
Jul 19, 9:56 PM MDTSevere Thunderstorm WarningBYZMusselshell64 min
Jul 19, 10:08 PM MDTSevere Thunderstorm WarningBYZCuster52 min
Jul 19, 10:11 PM MDTSevere Thunderstorm WarningBYZDawson64 min
Jul 19, 10:32 PM MDTSevere Thunderstorm WarningBYZPrairie58 min
Jul 19, 10:57 PM MDTSevere Thunderstorm WarningBYZRosebud63 min
Jul 20, 12:44 AM MDTSevere Thunderstorm WarningBYZDawson61 min
Jul 20, 1:33 AM MDTSevere Thunderstorm WarningBYZCuster, Fallon, Prairie57 min
Jul 20, 1:33 AM MDTSevere Thunderstorm WarningBYZWibaux57 min

Nearby

Tornado Warnings in Montana, 1996Every tornado warning in 1996Tornadoes in 1996

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.