Alert archive / Montana / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 4, NWS Missoula, MT

June 8, 2016Mineral County, Sanders County, Montana

NWS Missoula, MT issued this severe thunderstorm warning at Jun 8, 2016, 4:57 PM MDT for Mineral County, Sanders County, Montana. It was in force for 33 min. 1 report 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, 4:57 PM MDT (22:57 UTC)
Expired
Jun 8, 2016, 5:30 PM MDT
In force
33 min
Issued by
NWS Missoula, MT
Area
Storm-based polygon

Counties Mineral County, MT, Sanders County, MT

The radar

The Missoula radar (KMSX), 124 km from the middle of the area, began a volume at 23:00 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, 5:05 PM MDTHAIL 1Saltese, MTA BUSINESS IN SALTESE REPORTED QUARTER OR BIGGER SIZED HAIL. THE HAIL DENTED CARS. THE WINDS DAMAGED SOME TREE LIMBS. STORM LASTED 15 MINUTES.

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 12:00Z, 11.0 hours before the alert went out and 72 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 2016-06-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 20 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Spokane, WA at 12:00Z on 2016-06-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 90 square meters per square second.19395878Sfc1 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
20 J/kg
Mixed-layer CIN
-336 J/kg
Mixed-layer LCL
2709 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
90 m²/s²
0-3 km storm-relative helicity
117 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

458 
WUUS55 KMSO 082257
SVRMSO
MTC061-089-082330-
/O.NEW.KMSO.SV.W.0004.160608T2257Z-160608T2330Z/

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

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHWESTERN MINERAL COUNTY IN WEST CENTRAL MONTANA...
  CENTRAL SANDERS COUNTY IN NORTHWESTERN MONTANA...

* UNTIL 530 PM MDT

* AT 456 PM MDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM
  CAPABLE OF PRODUCING QUARTER SIZE HAIL AND DAMAGING WINDS IN EXCESS
  OF 60 MPH. THIS STORM WAS LOCATED NEAR THOMPSON FALLS...AND MOVING
  NORTHEAST AT 45 MPH.

* LOCATIONS IMPACTED INCLUDE...
  I-90...THOMPSON FALLS...PLAINS...ST. REGIS...HAUGAN...DE BORGIA...
  PARADISE...SALTESE...EDDY...WEEKSVILLE...SNIDER...TAFT...
  EAST PORTAL AND BELKNAP.

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 4742 11576 4745 11571 4746 11564 4748 11563
      4748 11569 4752 11571 4753 11570 4755 11575
      4791 11507 4735 11465 4725 11532 4726 11534
      4726 11541 4728 11542 4730 11552 4735 11555
      4738 11561 4738 11564 4743 11573
TIME...MOT...LOC 2256Z 230DEG 85KT 4755 11542 

$$
2 follow-up statements
240 
WWUS55 KMSO 082318
SVSMSO

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

MTC061-089-082330-
/O.CON.KMSO.SV.W.0004.000000T0000Z-160608T2330Z/
MINERAL MT-SANDERS MT-
518 PM MDT WED JUN 8 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 PM MDT
FOR NORTH CENTRAL MINERAL AND CENTRAL SANDERS COUNTIES...

AT 518 PM MDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE
OF PRODUCING QUARTER SIZE HAIL AND DAMAGING WINDS IN EXCESS OF 60
MPH. THIS STORM WAS LOCATED 24 MILES WEST OF BIG ARM...OR 31 MILES
SOUTHWEST OF KALISPELL...MOVING NORTHEAST AT 100 MPH.

LOCATIONS IMPACTED INCLUDE...
THOMPSON FALLS...PLAINS...HAUGAN...DE BORGIA...PARADISE...SNIDER...
SALTESE...EDDY AND WEEKSVILLE.

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 4745 11563 4791 11507 4735 11465 4736 11551
TIME...MOT...LOC 2318Z 230DEG 85KT 4789 11481 

$$
721 
WWUS55 KMSO 082325
SVSMSO

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

MTC061-089-082334-
/O.EXP.KMSO.SV.W.0004.000000T0000Z-160608T2330Z/
MINERAL MT-SANDERS MT-
525 PM MDT WED JUN 8 2016

...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL MINERAL AND
CENTRAL SANDERS COUNTIES WILL EXPIRE AT 530 PM MDT...
    
THE SEVERE THUNDERSTORM WHICH PROMPTED THE WARNING HAS BUT WILL
STILL SEE SMALL HAIL AND GUSTY WINDS.  THEREFORE THE WARNING WILL BE
ALLOWED TO EXPIRE.

LAT...LON 4745 11563 4791 11507 4735 11465 4736 11551
TIME...MOT...LOC 2318Z 230DEG 85KT 4789 11481 

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 7, 6:37 PM MDTSpecial Weather StatementMSOMineral23 min
Jun 7, 7:03 PM MDTSpecial Weather StatementMSOMineral27 min
Jun 8, 3:49 PM MDTSpecial Weather StatementMSOGranite41 min
Jun 8, 4:00 PM MDTSpecial Weather StatementMSOFlathead30 min
Jun 8, 4:19 PM MDTSpecial Weather StatementMSOMissoula26 min
Jun 8, 4:28 PM MDTSpecial Weather StatementMSOPowell32 min
Jun 8, 4:31 PM MDTSpecial Weather StatementMSOFlathead44 min
Jun 8, 4:42 PM MDTSevere Thunderstorm WarningMSOFlathead33 min
Jun 8, 4:52 PM MDTSevere Thunderstorm WarningMSOMineral, Sanders23 min
Jun 8, 4:59 PM MDTSpecial Weather StatementMSOMissoula31 min
Jun 8, 5:06 PM MDTSpecial Weather StatementMSOFlathead39 min
Jun 8, 5:14 PM MDTSpecial Weather StatementMSOSanders31 min
Jun 8, 5:22 PM MDTSpecial Weather StatementMSOLake23 min
Jun 8, 5:33 PM MDTSpecial Weather StatementMSOSanders27 min
Jun 8, 5:34 PM MDTSpecial Weather StatementMSOFlathead26 min
Jun 8, 5:52 PM MDTSpecial Weather StatementMSOFlathead23 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.