Alert archive / Montana / Severe Thunderstorm Warnings in 2006

Severe Thunderstorm Warning 21, NWS Missoula, MT

June 12, 2006Lake County, Missoula County, Montana

NWS Missoula, MT issued this severe thunderstorm warning at Jun 12, 2006, 7:26 PM MDT for Lake County, Missoula County, Montana. It was in force for 57 days. 8 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Jun 12, 2006, 7:26 PM MDT (01:26 UTC)
Expired
Aug 8, 2006, 6:30 PM MDT
In force
57 days
Issued by
NWS Missoula, MT
Area
Counties, with a storm outline in the text

Counties Lake County, MT, Missoula County, MT

The radar

The Missoula radar (KMSX), 60 km from the middle of the area, began a volume at 01:28 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.

What was reported inside it

TimeReportWhereRemark
Jun 12, 8:35 PM MDTHAIL 11 E St. Ignatius, MTREPORTED BY STEVE STANLEY OEM
Jun 12, 10:28 PM MDTHAIL 0.75Charlo, MT
Jun 12, 10:28 PM MDTHAIL 0.75Ronan, MT
Jun 12, 10:31 PM MDTHAIL 0.5Charlo, MT
Jun 13, 8:43 PM MDTHAIL 113 S Bigfork, MTHEAVY RAIN, 0.41 INCH IN 10 MINUTES
Jun 13, 8:59 PM MDTHAIL 1Woods Bay, MT
Jul 6, 3:12 PM MDTHAIL 0.5Plains, MT1/2 INCH HAIL WITH HEAVY RAIN AND 45-50 MPH WINDS.
Aug 8, 6:25 PM MDTTSTM WND DMGSt. Ignatius, MTNUMEROUS TREES DOWN ON POWERLINES REPORTED BY MISSION VALLEY POWER COMPANY

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Spokane, WA (KOTX), launched 00:00Z, 1.4 hours before the alert went out and 180 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, Spokane, WA at 00:00Z on 2006-06-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 30 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, Spokane, WA at 00:00Z on 2006-06-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -23 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
30 J/kg
Mixed-layer CIN
-176 J/kg
Mixed-layer LCL
1798 m above ground
0-6 km bulk shear
50 kt
0-1 km storm-relative helicity
-23 m²/s²
0-3 km storm-relative helicity
241 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 
WUUS55 KMSO 130126
SVRMSO
MTC063-130215-
/O.NEW.KMSO.SV.W.0021.060613T0126Z-060613T0215Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MISSOULA MT
726 PM MDT MON JUN 12 2006

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHWESTERN MISSOULA COUNTY IN WEST CENTRAL MONTANA...

* UNTIL 815 PM MDT(715 PM PDT).

* AT 718 PM MDT...TRAINED WEATHER SPOTTERS REPORTED A SEVERE
  THUNDERSTORM CAPABLE OF PRODUCING NICKEL SIZE HAIL.  THIS STORM WAS
  LOCATED 7 MILES WEST OF FRENCHTOWN...OR ABOUT 20 MILES NORTHWEST OF
  MISSOULA...AND WAS MOVING NORTHEAST AT 35 MPH.

* LOCATIONS IMPACTED INCLUDE...EVARO...FRENCHTOWN...HUSON...LOLO HOT
  SPRINGS AND STARK.

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 YOU ARE CAUGHT OUTSIDE...MOVE TO A
WELL PROTECTED AREA.

LAT...LON 4703 11403 4664 11456 4664 11458 4667 11464
      4673 11466 4675 11454 4695 11456 4699 11452
      4698 11444 4702 11440 4707 11448 4707 11456
      4719 11470 4724 11470

$$
3 follow-up statements
000 
WWUS55 KMSO 130152
SVSMSO

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MISSOULA MT
752 PM MDT MON JUN 12 2006

MTC063-130202-
/O.CAN.KMSO.SV.W.0021.000000T0000Z-060613T0215Z/
MISSOULA MT-
752 PM MDT MON JUN 12 2006

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN MISSOULA COUNTY
IS CANCELLED...

THE SEVERE THUNDERSTORM HAS WEAKENED MOVED OUT OF MISSOULA COUNTY. A 
SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 PM MDT MONDAY 
EVENING(1000 PM PDT MONDAY EVENING) FOR NORTH CENTRAL IDAHO AND WEST 
CENTRAL MONTANA.

LAT...LON 4703 11403 4664 11456 4664 11458 4667 11464
      4673 11466 4675 11454 4695 11456 4699 11452
      4698 11444 4702 11440 4707 11448 4707 11456
      4719 11470 4724 11470

$$
000 
WUUS55 KMSO 082348
SVRMSO
MTC047-090030-
/O.NEW.KMSO.SV.W.0021.060808T2347Z-060809T0030Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MISSOULA MT
547 PM MDT TUE AUG 8 2006

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CENTRAL LAKE COUNTY IN NORTHWEST MONTANA...

* UNTIL 630 PM MDT.

* AT 542 PM MDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM
  CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS
  STORM WAS LOCATED 15 MILES SOUTHEAST OF ARLEE...OR ABOUT 9 MILES
  NORTHEAST OF MISSOULA...AND WAS MOVING NORTH AT 30 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  ARLEE AROUND 610 PM MDT...
  SAINT IGNATIUS AROUND 625 PM MDT.

DAMAGING WINDS ARE LIKELY WITH THIS SEVERE THUNDERSTORM. SMALL HAIL
IS POSSIBLE...ALONG WITH FREQUENT LIGHTNING AND HEAVY RAIN. FOR YOUR
PROTECTION...GO INDOORS AND STAY AWAY FROM WINDOWS. IF YOU ARE CAUGHT
OUTSIDE...MOVE TO A WELL PROTECTED AREA.

LAT...LON 4768 11387 4762 11387 4759 11395 4751 11391
      4747 11395 4739 11387 4729 11389 4719 11383
      4714 11417 4735 11419 4739 11426 4795 11434
      4795 11404 4800 11406 4804 11396

$$
000 
WWUS55 KMSO 090028
SVSMSO

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MISSOULA MT
628 PM MDT TUE AUG 8 2006

MTC047-090038-
/O.EXP.KMSO.SV.W.0021.000000T0000Z-060809T0030Z/
LAKE MT-
628 PM MDT TUE AUG 8 2006

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL LAKE COUNTY EXPIRES AT
630 PM MDT...

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 PM MDT
TUESDAY EVENING FOR CENTRAL IDAHO.

LAT...LON 4768 11387 4762 11387 4759 11395 4751 11391
      4747 11395 4739 11387 4729 11389 4719 11383
      4714 11417 4735 11419 4739 11426 4795 11434
      4795 11404 4800 11406 4804 11396

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 12, 6:44 PM MDTSevere Thunderstorm WarningMSOMissoula46 min
Jun 12, 7:14 PM MDTSevere Thunderstorm WarningMSOMineral, Missoula57 days
Jun 12, 8:06 PM MDTSevere Thunderstorm WarningMSOLake, Lincoln, Sanders57 days
Jun 12, 8:31 PM MDTSevere Thunderstorm WarningMSOFlathead, Lake57 days
Jun 12, 9:26 PM MDTSevere Thunderstorm WarningMSOMineral, Missoula57 days
Jun 12, 9:31 PM MDTSevere Thunderstorm WarningMSOLincoln59 days
Jun 12, 9:42 PM MDTSevere Thunderstorm WarningMSOLake, Mineral, Sanders59 days
Jun 13, 3:26 PM MDTSevere Thunderstorm WarningMSOMissoula, Sanders58 days
Jun 13, 3:27 PM MDTSevere Thunderstorm WarningMSOLake, Mineral58 days
Jun 13, 4:08 PM MDTSevere Thunderstorm WarningMSOMissoula63 days
Jun 13, 4:10 PM MDTSevere Thunderstorm WarningMSOFlathead, Sanders64 days
Jun 13, 4:21 PM MDTSevere Thunderstorm WarningMSOFlathead, Lake64 days
Jun 13, 5:17 PM MDTSevere Thunderstorm WarningMSOFlathead64 days
Jun 13, 5:33 PM MDTSevere Thunderstorm WarningMSOSanders64 days
Jun 13, 5:45 PM MDTSevere Thunderstorm WarningMSOLincoln, Missoula64 days
Jun 13, 5:58 PM MDTSevere Thunderstorm WarningMSOMineral, Missoula64 days

Nearby

Severe Thunderstorm Warnings in Montana, 2006Every severe thunderstorm warning in 2006

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.