Alert archive / Montana / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 33, NWS Missoula, MT
NWS Missoula, MT issued this severe thunderstorm warning at Aug 4, 2001, 7:26 PM MDT for Lake County, Montana. It was in force for 34 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
- Aug 4, 2001, 7:26 PM MDT (01:26 UTC)
- Expired
- Aug 4, 2001, 8:00 PM MDT
- In force
- 34 min
- Issued by
- NWS Missoula, MT
- Area
- Whole counties
County Lake County, MT
The nearest sounding before it
Spokane, WA (KOTX), launched 00:00Z, 1.4 hours before the alert went out and 173 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.
- Mixed-layer CAPE
- 20 J/kg
- Mixed-layer CIN
- -17 J/kg
- Mixed-layer LCL
- 1653 m above ground
- 0-6 km bulk shear
- 0 kt
- 0-1 km storm-relative helicity
- 0 m²/s²
- 0-3 km storm-relative helicity
- 0 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS55 KMSO 050127 SVRMSO MTC047-050200- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MISSOULA MT 726 PM MDT SAT AUG 4 2001 THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... CENTRAL LAKE COUNTY IN NORTHWEST MONTANA * UNTIL 800 PM MDT * AT 726 PM MDT...RADAR INDICATED A SEVERE THUNDERSTORM 5 MILES WEST OF RONAN...OR 12 MILES SOUTH OF POLSON...MOVING NORTHEAST AT 45 MPH. * THE SEVERE THUNDERSTORM WILL AFFECT RONAN BY 735 PM SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS AND HAIL...ALONG WITH FREQUENT LIGHTNING AND HEAVY RAIN. FOR YOUR PROTECTION...GO INDOORS AND STAY AWAY FROM WINDOWS. IF YODU ARE CAUGHT OUTSIDE...MOVE TO A WELL PROTECTED AREA.
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Missoula, MT wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 4, 2:46 PM MDT, 4 hours 40 minutes earlier.
Area forecast discussion, Aug 4, 2:46 PM MDT, 4 hours 40 minutes before
WESTERN MONTANA AND NORTH CENTRAL IDAHO FORECAST DISCUSSION NATIONAL WEATHER SERVICE MISSOULA MT 246 PM MDT SAT AUG 4 2001 .SHORT TERM...THUNDERSTORMS ARE DEVELOPING ACROSS THE SOUTHERN SECTIONS OF THE CWA THIS AFTERNOON. WITH SEVERE THUNDERSTORMS DEVELOPING IN THE SOUTHEASTERN SECTION OF THE CWA. ISOLATED SHOWERS AND THUNDERSTORMS ARE DEVELOPING ACROSS THE REST OF THE CWA. THE PACIFIC TROUGH WILL MOVE ACROSS THE AREA TONIGHT...PRODUCING SHOWERS AND THUNDERSTORMS. AFTER THE TROUGH PASSES THROUGH THE AREA LATER TONIGHT...THE RIDGE WILL BEGIN TO REBUILD WITH A WARMING AND DRYING TREND. KOLATA .EXTENDED...NO SIGNIFICANT CHANGES THROUGH DAY6 AS MEDIUM RANGE CONTINUES TO SHOW HIGHER HEIGHTS ON TUESDAY...FOLLOWED BY WESTERN CANADA TROUGH AXIS SLOWLY SINKING SOUTHWARD. HIGH PRESSURE CENTER OVER WY WILL BRING SOME MOISTURE ACROSS THE SOUTHERN ZONES BY MIDWEEK FOR A THREAT OF CONVECTION. TROUGH AXIS SLIDES ACROSS SOUTHERnN CANADA WITH WEST TO NORTHWEST FLOW ALOFT OVER THE CWA LATE IN THE WEEK. TEMPERATURES SHOULD MODERATE WITH RELATIVELY DRY WEATHER TO END THE WEEK. BOLDT .MSO...SEVERE THUNDERSTORM WATCH UNTIL 7 PM MDT FOR MTZ007
In the hours before
Special weather statement, Aug 4, 7:00 PM MDT, 26 minutes before
MTZ007-050110- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MISSOULA MT 700 PM MDT SAT AUG 4 2001 ...SEVERE THUNDERSTORM WATCH FOR POWELL...DEER LODGE AND SILVER BOW COUNTIES HAS EXPIRED... SCATTERED SHOWERS AND THUNDERSTORMS MAY LINGER UNTIL MIDNIGHT ACROSS WEST CENTRAL MONTANA...BUT SEVERE WEATHER...INCLUDING LARGE HAIL AND DAMAGING WINDS...IS NO LONGER EXPECTED.
Nearby
Severe Thunderstorm Warnings in Montana, 2001Every severe thunderstorm warning 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; the sounding from the Mesonet's radiosonde archive.