Alert archive / Montana / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 29, NWS Missoula, MT

June 26, 2012Flathead County, Lincoln County, Sanders County, Montana

NWS Missoula, MT issued this severe thunderstorm warning at Jun 26, 2012, 6:38 AM MDT for Flathead County, Lincoln County, Sanders County, Montana. It was in force for 52 min. 2 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 26, 2012, 6:38 AM MDT (12:38 UTC)
Expired
Jun 26, 2012, 7:30 AM MDT
In force
52 min
Issued by
NWS Missoula, MT
Area
Storm-based polygon

Counties Flathead County, MT, Lincoln County, MT, Sanders County, MT

The radar

The Missoula radar (KMSX), 140 km from the middle of the area, began a volume at 12:41 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 26, 6:50 AM MDTHAIL 0.755 Ssw Marion, MTVERY LITTLE RAIN, ALL HAIL COVERING THE GROUND ABOUT ONE INCH DEEP
Jun 26, 6:55 AM MDTHAIL 11 Ese Marion, MT

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 12:00Z, 0.6 hours before the alert went out and 124 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 12:00Z on 2012-06-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 29 joules per kilogram.LCLEL10008507005003002001001 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 12:00Z on 2012-06-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -3 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
29 J/kg
Mixed-layer CIN
-17 J/kg
Mixed-layer LCL
1214 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
-3 m²/s²
0-3 km storm-relative helicity
159 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.

392 
WUUS55 KMSO 261238
SVRMSO
MTC029-053-089-261330-
/O.NEW.KMSO.SV.W.0029.120626T1238Z-120626T1330Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MISSOULA MT
638 AM MDT TUE JUN 26 2012

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CENTRAL SANDERS COUNTY IN NORTHWEST MONTANA...
  SOUTHEASTERN LINCOLN COUNTY IN NORTHWEST MONTANA...
  WESTERN FLATHEAD COUNTY IN NORTHWEST MONTANA...

* UNTIL 730 AM MDT.

* AT 630 AM MDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM
  CAPABLE OF PRODUCING ONE INCH HAIL...AND DAMAGING WINDS IN EXCESS
  OF 60 MPH.  THIS STORM WAS LOCATED 9 MILES SOUTHEAST OF BEND...OR
  ABOUT 25 MILES NORTHEAST OF THOMPSON FALLS...AND WAS MOVING NORTH
  AT 40 MPH.

* LOCATIONS IMPACTED INCLUDE...BEND AND MARION.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 4845 11510 4835 11435 4772 11474 4779 11508
TIME...MOT...LOC 1238Z 191DEG 33KT 4789 11489

$$
KITSMILLER
2 follow-up statements
958 
WWUS55 KMSO 261302
SVSMSO

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MISSOULA MT
702 AM MDT TUE JUN 26 2012

MTC029-053-089-261330-
/O.CON.KMSO.SV.W.0029.000000T0000Z-120626T1330Z/
LINCOLN MT-SANDERS MT-FLATHEAD MT-
702 AM MDT TUE JUN 26 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 730 AM MDT
FOR WESTERN FLATHEAD...NORTHERN SANDERS AND SOUTHEASTERN LINCOLN
COUNTIES...

* AT 654 AM MDT...TRAINED WEATHER SPOTTERS REPORTED A SEVERE   
THUNDERSTORM PRODUCING ONE INCH HAIL...AND DAMAGING WINDS IN EXCESS 
OF 60 MPH.  THIS STORM WAS LOCATED 10 MILES SOUTHWEST OF MARION...OR 
ABOUT 27 MILES SOUTHWEST OF KALISPELL...  AND WAS MOVING NORTH AT 40 
MPH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

HAIL UP TO ONE INCHES IN DIAMETER HAS BEEN REPORTED
IN MARION WITH THIS STORM. IF YOU ARE IN THE PATH OF
THE STORM...TAKE IMMEDIATE ACTION TO PROTECT LIFE AND PROPERTY.

&&

LAT...LON 4792 11462 4799 11509 4845 11510 4835 11435
TIME...MOT...LOC 1302Z 191DEG 33KT 4811 11483

$$
KITSMILLER
696 
WWUS55 KMSO 261327
SVSMSO

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MISSOULA MT
727 AM MDT TUE JUN 26 2012

MTC029-053-089-261337-
/O.EXP.KMSO.SV.W.0029.000000T0000Z-120626T1330Z/
LINCOLN MT-SANDERS MT-FLATHEAD MT-
727 AM MDT TUE JUN 26 2012

...THE SEVERE THUNDERSTORM WARNING FOR WESTERN FLATHEAD...NORTHERN
SANDERS AND SOUTHEASTERN LINCOLN COUNTIES EXPIRES AT 730 AM MDT...

LAT...LON 4792 11462 4799 11509 4845 11510 4835 11435
TIME...MOT...LOC 1327Z 191DEG 33KT 4833 11476

$$
KITSMILLER

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 26, 2:16 AM MDTSpecial Weather StatementMSOMissoula44 min
Jun 26, 2:35 AM MDTRed Flag WarningMSOBeaverhead, Deer Lodge, Granite, Jefferson, Madison, Powell and 1 more21 hr
Jun 26, 2:54 AM MDTSpecial Weather StatementMSOFlathead36 min
Jun 26, 3:59 AM MDTSpecial Weather StatementMSOFlathead31 min
Jun 26, 4:24 AM MDTSpecial Weather StatementMSOFlathead36 min
Jun 26, 5:02 AM MDTSpecial Weather StatementMSOSanders28 min
Jun 26, 5:15 AM MDTSpecial Weather StatementMSOFlathead30 min
Jun 26, 5:41 AM MDTSevere Thunderstorm WarningMSOFlathead, Lake34 min
Jun 26, 6:00 AM MDTSevere Thunderstorm WarningMSOFlathead, Lake30 min
Jun 26, 6:25 AM MDTSevere Thunderstorm WarningMSOFlathead35 min
Jun 26, 6:53 AM MDTSevere Thunderstorm WarningMSOFlathead37 min
Jun 26, 8:50 AM MDTLake Wind AdvisoryMSOFlathead, Lake, Sanders9 hr
Jun 26, 10:07 AM MDTAreal Flood AdvisoryMSOLake9 hr
Jun 26, 10:08 AM MDTSpecial Weather StatementMSOFlathead, Lake52 min
Jun 26, 10:11 AM MDTSpecial Weather StatementMSOGranite, Missoula49 min
Jun 26, 10:25 AM MDTSevere Thunderstorm WarningMSOFlathead, Lake, Missoula50 min
Jun 26, 11:09 AM MDTSevere Thunderstorm WarningMSOFlathead, Missoula, Powell35 min
Jun 26, 11:11 AM MDTFlash Flood WarningMSOFlathead3 hr
Jun 26, 1:16 PM MDTAreal Flood WarningMSOFlathead24 hr

Nearby

Severe Thunderstorm Warnings in Montana, 2012Every severe thunderstorm warning in 2012

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.