Alert archive / Montana / Tornado Warnings in 2001

Tornado Warning 1, NWS Glasgow, MT

July 5, 2001Richland County, Montana

NWS Glasgow, MT issued this tornado warning at Jul 5, 2001, 9:31 PM MDT for Richland County, Montana. It was in force for 59 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 5, 2001, 9:31 PM MDT (03:31 UTC)
Expired: Jul 5, 2001, 10:30 PM MDT
In force: 59 min
Issued by: NWS Glasgow, MT
Area: Whole counties

County Richland County, MT

What was reported inside it

Time	Report	Where	Remark
Jul 5, 9:34 PM MDT	Hail 0.88	Sidney, 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 5, 8:00 PM MDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Glasgow Intl Airport, MT (KGGW), launched 00:00Z, 3.5 hours before the alert went out and 159 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: 2576 J/kg
Mixed-layer CIN: -52 J/kg
Mixed-layer LCL: 2345 m above ground
0-6 km bulk shear: 46 kt
0-1 km storm-relative helicity: 108 m²/s²
0-3 km storm-relative helicity: 274 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 8.3

Open this sounding in Storm Lab

The text

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

000 
WFUS55 KGGW 060331
TORGGW

MTC083-060430-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE GLASGOW MT
931 PM MDT THU JUL 5 2001

THE NATIONAL WEATHER SERVICE IN GLASGOW HAS ISSUED A

* TORNADO WARNING FOR...
  EASTERN RICHLAND COUNTY IN NORTHEAST MONTANA

* UNTIL 1030 PM MDT

* AT 921 PM MDT...THE PUBLIC REPORTED A TORNADO 18 MILES WEST OF
  FAIRVIEW...OR ABOUT 18 MILES NORTHWEST OF SIDNEY...MOVING EAST AT
  55 MPH.

* THE TORNADO IS EXPECTED TO BE NEAR...
  FAIRVIEW AT 940 PM MDT

IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER IN A NEARBY REINFORCED
BUILDING. AS A LAST RESORT...SEEK SHELTER IN A CULVERT...DITCH OR LOW
SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE
NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

LAT...LON 4799 10439 4781 10436 4784 10281 4811 10284

.END
!86!

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 Glasgow, MT wrote its last area forecast discussion before this tornado warning went out at Jul 5, 9:25 PM MDT, 6 minutes earlier.

Area forecast discussion, Jul 5, 9:25 PM MDT, 6 minutes before

NORTHEAST MONTANA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GLASGOW MT
925 PM MDT THU JUL 5 2001

SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 07Z FOR EASTERN ZONES.
SEVERE WEATHER IN PROGRESS OVER EASTERN HALF OF CWA. NOT ENOUGH TIME
FOR IN DEPTH FORECAST DISCUSSION.   POHL

EXTENDED...SOUTHWEST CONUS HIGH CONTINUES TO DOMINATE THE WEATHER
PATTERN THROUGH THE EXTENDED PERIOD. HIGH PULLS MONSOONAL MOISTURE
NORTH TOWARD MONTANA BUT MODELS KEEPING NORTHERN MONTANA ON THE
PERIPHERY OF MOISTURE STREAM. JET PULLS FURTHER NORTH INTO CANADA
WITH WEAK SHORTWAVE ENERGY ROTATING AROUND HIGH INTO MONTANA. TIMING
AND STRENGTH OF THESE WAVES STILL AN ISSUE BUT AVN SUGGESTING BEST
POSSIBILITY FOR THUNDERSTORMS DURING THE PERIOD WILL BE SUNDAY WITH
A WEAK FRONT PUSHING ACROSS CWA. REMAINDER OF PERIOD MARGINAL FOR
THUNDERSTORMS BUT WILL KEEP DRY WORDING FOR NOW. EBERT

KGGW 062/082 053/086 057/087 057/087 059/088 060/086 060/086
      BBTBBBB  873111/9032222

KGDV 062/083 052/086 056/087 056/088 058/089 057/085 059/086
      BBTBBBB  875111/9032222

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 5, 8:01 PM MDT	Severe Thunderstorm Warning	GGW	Roosevelt	89 min
Jul 5, 8:17 PM MDT	Severe Thunderstorm Warning	GGW	Dawson	58 min
Jul 5, 8:47 PM MDT	Severe Thunderstorm Warning	GGW	Roosevelt, Sheridan	88 min
Jul 5, 9:33 PM MDT	Tornado Warning	GGW	Roosevelt	42 min
Jul 5, 9:54 PM MDT	Severe Thunderstorm Warning	GGW	Dawson	36 min
Jul 5, 10:30 PM MDT	Severe Thunderstorm Warning	GGW	Dawson, Wibaux	60 min
Jul 5, 10:45 PM MDT	Severe Thunderstorm Warning	GGW	Prairie	60 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.