Alert archive / Montana / Tornado Warnings in 2001

Tornado Warning 13, NWS Billings, MT

July 19, 2001Fallon County, Montana

NWS Billings, MT issued this tornado warning at Jul 19, 2001, 7:30 PM MDT for Fallon County, Montana. It was in force for 30 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 19, 2001, 7:30 PM MDT (01:30 UTC)
Expired
Jul 19, 2001, 8:00 PM MDT
In force
30 min
Issued by
NWS Billings, MT
Area
Whole counties

County Fallon County, MT

What was reported inside it

TimeReportWhereRemark
Jul 19, 7:55 PM MDTHail 1Baker, 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.

IssuedProductOfficeLasted
Jul 19, 5:00 PM MDTTornado WatchSPC6 hr

The nearest sounding before it

Glasgow Intl Airport, MT (KGGW), launched 00:00Z, 1.5 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.

Skew-T log-pSkew-T log-p diagram, Glasgow Intl Airport, MT at 00:00Z on 2001-07-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 667 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°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 2001-07-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -52 square meters per square second.1939587897Sfc1 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
667 J/kg
Mixed-layer CIN
-57 J/kg
Mixed-layer LCL
1843 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
-52 m²/s²
0-3 km storm-relative helicity
-3 m²/s²
Significant tornado parameter
-0.0
Supercell composite
-2.2

Open this sounding in Storm Lab

The text

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

000 
WFUS55 KBYZ 200130
TORBIL

MTC025-200200-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE BILLINGS MT
730 PM MDT THU JUL 19 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 800 PM MDT

* AT 723 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  POSSIBLE TORNADO OVER BAKER...OR ABOUT 3 MILES WEST OF BAKER...
  MOVING NORTHEAST AT 20 MPH.

* THE TORNADO WILL REMAIN OVER MAINLY RURAL AREAS OF... 
  EASTERN FALLON COUNTY

GO TO THE BASEMENT OR A SMALL INTERIOR ROOM ON THE LOWEST FLOOR!

THIS WARNING REPLACES THE PREVIOUS% WARNING FOR FALLON COUNTY.

$$

SCARLETT

LAT...LON 4639 10449 4626 10430 4627 10407 4666 10413

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 19, 6:15 PM MDTSevere Thunderstorm WarningBYZCarter60 min
Jul 19, 6:40 PM MDTSevere Thunderstorm WarningBYZStillwater, Yellowstone35 min
Jul 19, 6:41 PM MDTSevere Thunderstorm WarningBYZFallon64 min
Jul 19, 6:51 PM MDTSevere Thunderstorm WarningBYZMusselshell54 min
Jul 19, 7:14 PM MDTSevere Thunderstorm WarningBYZWheatland31 min
Jul 19, 7:15 PM MDTSevere Thunderstorm WarningBYZYellowstone60 min
Jul 19, 7:42 PM MDTSevere Thunderstorm WarningBYZMusselshell, Yellowstone63 min
Jul 19, 8:41 PM MDTSevere Thunderstorm WarningBYZTreasure34 min
Jul 20, 4:23 PM MDTSevere Thunderstorm WarningBYZPowder River67 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.