Tornado Warning 15, NWS Glasgow, MT

Issued

Jul 20, 2001, 6:15 PM MDT (00:15 UTC)

Expired

Jul 20, 2001, 7:15 PM MDT

In force

60 min

Issued by

NWS Glasgow, MT

Area

Whole counties; the outline is the Mesonet’s reconstruction

County McCone County, MT

The Glasgow radar (KGGW), 79 km from the middle of the area, began a volume at 00:16 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.

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.

000 
WFUS55 KGGW 210015
TORGGW

MTC055-210115-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE GLASGOW MT
615 PM MDT FRI JUL 20 2001

THE NATIONAL WEATHER SERVICE IN GLASGOW HAS ISSUED A

* TORNADO WARNING FOR...
  MCCONE COUNTY IN NORTHEAST MONTANA

* UNTIL 715 PM MDT

* AT 612 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  TORNADO 16 MILES EAST OF NELSON CREEK RECREATION AREA...OR ABOUT 21
  MILES NORTHWEST OF CIRCLE...MOVING EAST AT 25 MPH.

* THE TORNADO PRODUCING STORM WILL BE NEAR...
  WELDON AT 620 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.

THIS WARNING EXTENDS THE TORNADO WARNING PREVIOUSLY ISSUED FOR THE
AREA.

LAT...LON 4769 10628 4741 10627 4741 10614 4723 10614
          4722 10546 4755 10544 4767 10542 4780 10541
          4783 10527 4794 10522 4806 10525 4805 10556
          4799 10581 4799 10606 4804 10635 4791 10631
          4790 10624

.END
99

NWS Glasgow, MT wrote its last area forecast discussion before this tornado warning went out at Jul 20, 2:15 PM MDT, 4 hours earlier.

NORTHEAST MONTANA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GLASGOW MT
215 PM MDT FRI JUL 20 2001

SW FLOW WITH DISTURBANCES RIPPLING THROUGH THE FLOW WILL CONTINUE AFFECT
THE AREA INTO SATURDAY NIGHT. THIS MEANS SEVERE WEATHER POTENTIAL WILL
CONTINUE. ETA AND AVN IN FAIR AGREEMENT THROUGH THE PERIOD WITH
PLACEMENT OF SYSTEMS. 500 MB VORT LOBE OVER ALBERTA WITH THE TROF
EXTENDING DOWN INTO THE PAC NW LIFTS OUT INTO MANITOBA BY LATE
SUNDAY. AT 00Z MON...LI/S DROP TO BELOW 0 IN A PORTION OF THE CWA WITH
A WEAK UPPER RIDGE PUSHING IN FROM WESTERN MT. JAMBA

EXTENDED...MRF IN DISAGREEMENT WITH ECMWF AND CANADIAN GEM MODELS
BEYOND DAY 4. A REX BLOCK THAT THE MODELS AGREE WITH SUN/MON SPINS
INTO A DIFFERENT SOLUTION BY ALL MODELS BY TUE. MRF PULLS THE
LOW ACROSS MT AND KEEPS THE CHANCES OF THUNDERSTORMS ACROSS THE CWA
THROUGH FRI...WHILE THE CANADIAN AND THE ECMWF BUILD THE RIDGE OVER
MT WITH THE LOW STAYING NEAR THE WEST COAST. WILL KEEP WITH THE
CHANCES OF STORMS THROUGH WED...WITH A MAINLY DRY CONDITIONS FOR THU
AND FRI. JAMBA

KGGW 062/088 064/085 057/082 058/083 058/083 058/084 057/085
     TTTTTBB  764352/7633322
KGDV 065/089 064/085 059/084 059/084 059/084 058/085 057/086
     TTTTTBB  765352/7633322

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

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; radar from the NEXRAD Level II archive.