Alert archive / Montana / Tornado Warnings in 2001

Tornado Warning 5, NWS Billings, MT

June 26, 2001Yellowstone County, Montana

NWS Billings, MT issued this tornado warning at Jun 26, 2001, 9:45 PM MDT for Yellowstone County, Montana. It was in force for 45 min. 3 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: Jun 26, 2001, 9:45 PM MDT (03:45 UTC)
Expired: Jun 26, 2001, 10:30 PM MDT
In force: 45 min
Issued by: NWS Billings, MT
Area: Whole counties

County Yellowstone County, MT

What was reported inside it

Time	Report	Where	Remark
Jun 26, 9:45 PM MDT	Thunderstorm Wind 70 M	Ballantine, MT	Road signs and construction debris on I-94
Jun 26, 9:45 PM MDT	Thunderstorm Wind 70 M	Pompeys Pillar, MT	Construction equipment blown over on I-94
Jun 26, 9:46 PM MDT	Thunderstorm Wind 70 E	Worden, MT	Trees down

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
Jun 26, 5:00 PM MDT	Tornado Watch	SPC	6 hr

The nearest sounding before it

Great_falls, MT (KTFX), launched 00:00Z, 3.8 hours before the alert went out and 245 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 2153 m above ground
0-6 km bulk shear: 50 kt
0-1 km storm-relative helicity: 35 m²/s²
0-3 km storm-relative helicity: 88 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 
WFUS55 KBYZ 270345
TORBIL
MTC111-270430-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE BILLINGS MT
945 PM MDT TUE JUN 26 2001

THE NATIONAL WEATHER SERVICE IN BILLINGS HAS ISSUED A

* TORNADO WARNING FOR...
  EASTERN YELLOWSTONE COUNTY IN SOUTH CENTRAL MONTANA

* UNTIL 1030 PM MDT

* AT 943 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  POSSIBLE TORNADO OVER BALLANTINE...OR ABOUT 24 MILES NORTHEAST     
  OF BILLINGS...MOVING EAST AT 25 MPH. FUNNEL CLOUDS CONTINUE TO
  BE SIGHTED.

* THE TORNADO WILL BE NEAR...
   POMPEYS PILLAR BY 955 PM MDT.

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

THIS WARNING REPLACES THE PREVIOUS WARNING FOR YELLOWSTONE COUNTY.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1100 PM MDT TUESDAY EVENING 
FOR SOUTH CENTRAL MONTANA AND NORTH CENTRAL WYOMING.

$$

LAT...LON 4636 10777 4614 10828 4581 10817 4590 10805
          4590 s10789 4600 10780 4598 10769 4605 10768
          4605 10755

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 Jun 26, 8:35 PM MDT, 1 hour 10 minutes earlier.

Area forecast discussion, Jun 26, 8:35 PM MDT, 1 hour 10 minutes before

SOUTH CENTRAL AND SOUTHEAST MONTANA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BILLINGS MT
835 PM MDT TUE JUN 26 2001

.WED AND THU...
STRONG THUNDERSTORMS IN AND NEAR YELLOWSTONE COUNTY HAVE PRODUCED
A VARIETY OF SEVERE WEATHER REPORTS INCLUDING TORNADOES AND LARGE
HAIL. ZONE UPDATES DELAYED INDEFINITELY. THORICHT

.FRI...SAT...SUN...MON...TUE...

HOT AND MAINLY DRY WEATHER WILL PREVAIL ACROSS THE AREA FRIDAY AND
SATURDAY AS THE UPPER LEVEL RIDGE AXIS REMAINS OVER MONTANA. WEAK
SHORTWAVES MOVING ACROSS THE AREA FRIDAY WILL ONLY PRODUCE ISOLATED
THUNDERSTORMS. A STRONGER WAVE WILL MOVE ACROSS THE AREA SUNDAY...
BRINGING THE BEST CHANCE FOR THUNDERSTORMS DURING THE EXTENDED PERIOD.
NORTHWEST FLOW PREVAILS MONDAY AND TUESDAY...BRINGING MAINLY DRY
WEATHER MONDAY AND DRY WEATHER TUESDAY. TEMPERATURES WILL BE COOLER
MONDAY AND TUESDAY. MIDDENDORF

    WED     THU     FRI     SAT     SUN     MON     TUE
-----------------------------------------------------------
BIL 062/091 059/090 060/089 062/093 062/093 058/082 053/082
    44/T    20/B    22/B    22/B    23/T    32/B    20/B
LVM 058/086 056/089 054/088 055/090 055/088 055/078 046/078
    34/T    20/B    22/B    22/B    23/T    32/B    20/B
HDN 060/094 057/092 058/091 060/094 060/094 059/085 050/085
    44/T    20/B    22/B    22/B    23/T    32/B    20/B
MLS 063/093 065/090 063/093 063/095 064/095 061/085 054/085
    24/T    30/B    22/B    22/B    23/T    32/B    20/B
4BQ 064/095 064/092 064/093 064/095 063/095 060/083 052/083
    24/T    30/B    22/B    22/B    23/T    32/B    20/B
BHK 061/092 061/092 061/093 061/095 062/093 060/081 050/081
    24/T    30/B    22/B    22/B    23/T    32/B    20/B
SHR 060/091 058/091 055/089 055/092 055/094 055/081 047/081
    44/T    20/B    22/B    22/B    23/T    32/B    20/B

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 26, 7:28 PM MDT	Severe Thunderstorm Warning	BYZ	Yellowstone	62 min
Jun 26, 7:53 PM MDT	Tornado Warning	BYZ	Yellowstone	37 min
Jun 26, 8:10 PM MDT	Severe Thunderstorm Warning	BYZ	Carbon, Stillwater	20 min
Jun 26, 8:25 PM MDT	Tornado Warning	BYZ	Musselshell, Yellowstone	35 min
Jun 26, 9:00 PM MDT	Tornado Warning	BYZ	Yellowstone	45 min
Jun 26, 9:10 PM MDT	Flash Flood Warning	BYZ	Yellowstone	2 hr
Jun 26, 9:25 PM MDT	Severe Thunderstorm Warning	BYZ	Big Horn	65 min
Jun 26, 9:58 PM MDT	Severe Thunderstorm Warning	BYZ	Yellowstone	62 min
Jun 26, 11:17 PM MDT	Flash Flood Warning	BYZ	Yellowstone	58 min
Jun 27, 2:30 PM MDT	Severe Thunderstorm Warning	BYZ	Fallon	60 min
Jun 27, 2:55 PM MDT	Severe Thunderstorm Warning	BYZ	Custer	35 min
Jun 27, 3:29 PM MDT	Severe Thunderstorm Warning	BYZ	Custer, Fallon	61 min

Nearby

Tornado Warnings in Montana, 2001 Every tornado warning in 2001 Tornadoes 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.