Alert archive / Montana / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 5, NWS Missoula, MT

June 8, 2016Flathead County, Montana

NWS Missoula, MT issued this severe thunderstorm warning at Jun 8, 2016, 6:06 PM MDT for Flathead County, Montana. It was in force for 24 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 8, 2016, 6:06 PM MDT (00:06 UTC)
Expired
Jun 8, 2016, 6:30 PM MDT
In force
24 min
Issued by
NWS Missoula, MT
Area
Storm-based polygon

County Flathead County, MT

The radar

The Missoula radar (KMSX), 136 km from the middle of the area, began a volume at 00:09 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 8, 6:12 PM MDTHAIL 1.25Evergreen, MT.
Jun 8, 6:17 PM MDTHAIL 13 Sse Columbia Falls, MTRECEIVED A REPORT OF 1 INCH OR LARGER HAIL FROM THE PUBLIC ON SOCIAL MEDIA.

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

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jun 8, 3:07 PM MDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Spokane, WA (KOTX), launched 00:00Z, 0.1 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 2016-06-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2016-06-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -60 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2391 m above ground
0-6 km bulk shear
68 kt
0-1 km storm-relative helicity
-60 m²/s²
0-3 km storm-relative helicity
200 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

373 
WUUS55 KMSO 090006
SVRMSO
MTC029-090030-
/O.NEW.KMSO.SV.W.0005.160609T0006Z-160609T0030Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MISSOULA MT
606 PM MDT WED JUN 8 2016

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CENTRAL FLATHEAD COUNTY IN NORTHWESTERN MONTANA...

* UNTIL 630 PM MDT

* AT 606 PM MDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM
  CAPABLE OF PRODUCING QUARTER SIZE HAIL. THIS STORM WAS LOCATED OVER
  EVERGREEN...AND MOVING EAST-NORTHEAST AT 30 MPH.

* LOCATIONS IMPACTED INCLUDE...
  KALISPELL...EVERGREEN...LA SALLE...MARTIN CITY...HUNGRY HORSE AND
  CRESTON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS...DESTRUCTIVE
HAIL...DEADLY LIGHTNING AND VERY HEAVY RAIN. FOR YOUR
PROTECTION...MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE
INTO AREAS WHERE WATER COVERS THE ROAD.

&&

LAT...LON 4818 11430 4829 11434 4845 11392 4818 11378
TIME...MOT...LOC 0006Z 249DEG 26KT 4823 11425 

$$
2 follow-up statements
632 
WWUS55 KMSO 090018
SVSMSO

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MISSOULA MT
618 PM MDT WED JUN 8 2016

MTC029-090030-
/O.CON.KMSO.SV.W.0005.000000T0000Z-160609T0030Z/
FLATHEAD MT-
618 PM MDT WED JUN 8 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 630 PM MDT
FOR CENTRAL FLATHEAD COUNTY...

AT 617 PM MDT...TRAINED WEATHER SPOTTERS REPORTED A SEVERE
THUNDERSTORM PRODUCING QUARTER SIZE HAIL. THIS STORM WAS LOCATED 7
MILES EAST OF EVERGREEN...MOVING EAST-NORTHEAST AT 30 MPH.

LOCATIONS IMPACTED INCLUDE...
LA SALLE...HUNGRY HORSE AND MARTIN CITY. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS...DESTRUCTIVE
HAIL...DEADLY LIGHTNING AND VERY HEAVY RAIN. FOR YOUR PROTECTION
MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR
BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE INTO AREAS
WHERE WATER COVERS THE ROAD.

&&

LAT...LON 4821 11423 4832 11426 4845 11392 4818 11378
TIME...MOT...LOC 0017Z 249DEG 26KT 4826 11413 

$$
826 
WWUS55 KMSO 090029
SVSMSO

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MISSOULA MT
629 PM MDT WED JUN 8 2016

MTC029-090038-
/O.EXP.KMSO.SV.W.0005.000000T0000Z-160609T0030Z/
FLATHEAD MT-
629 PM MDT WED JUN 8 2016

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL FLATHEAD COUNTY WILL
EXPIRE AT 630 PM MDT...
    
THE SEVERE THUNDERSTORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF
THE WARNED AREA. THEREFORE THE WARNING WILL BE ALLOWED TO EXPIRE.

LAT...LON 4821 11423 4832 11426 4845 11392 4818 11378
TIME...MOT...LOC 0027Z 249DEG 26KT 4826 11413 

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 8, 6:07 PM MDTSpecial Weather StatementMSO38 min
Jun 8, 6:11 PM MDTSpecial Weather StatementMSOLake64 min
Jun 8, 6:16 PM MDTSevere Thunderstorm WarningMSOFlathead29 min
Jun 8, 6:22 PM MDTSevere Thunderstorm WarningMSOLake, Sanders24 min
Jun 8, 6:26 PM MDTSpecial Weather StatementMSOMineral34 min
Jun 8, 6:31 PM MDTSpecial Weather StatementMSOFlathead29 min
Jun 8, 6:37 PM MDTSevere Thunderstorm WarningMSOMineral, Missoula, Sanders38 min
Jun 8, 6:44 PM MDTSevere Thunderstorm WarningMSOLake28 min
Jun 8, 7:12 PM MDTSpecial Weather StatementMSOFlathead33 min
Jun 8, 8:41 PM MDTSpecial Weather StatementMSOGranite, Silver Bow64 min
Jun 8, 9:05 PM MDTSpecial Weather StatementMSORavalli40 min
Jun 8, 9:12 PM MDTSevere Thunderstorm WarningMSODeer Lodge, Granite, Powell, Silver Bow33 min
Jun 8, 9:39 PM MDTSpecial Weather StatementMSOMissoula66 min
Jun 8, 9:47 PM MDTSpecial Weather StatementMSOPowell43 min
Jun 9, 3:20 PM MDTSpecial Weather StatementMSODeer Lodge40 min

Nearby

Severe Thunderstorm Warnings in Montana, 2016Every severe thunderstorm warning in 2016

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.