Alert archive / Idaho / Severe Thunderstorm Warnings in 2010

Severe Thunderstorm Warning 50, NWS Missoula, MT

August 10, 2010Idaho County, Idaho

NWS Missoula, MT issued this severe thunderstorm warning at Aug 10, 2010, 8:45 PM PDT for Idaho County, Idaho. It was in force for 45 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 10, 2010, 8:45 PM PDT (03:45 UTC)
Expired: Aug 10, 2010, 9:30 PM PDT
In force: 45 min
Issued by: NWS Missoula, MT
Area: Storm-based polygon

County Idaho County, ID

The radar

The Missoula radar (KMSX), 175 km from the middle of the area, began a volume at 03:47 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 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 10, 1:56 PM PDT, 6 hours 49 minutes earlier.

Area forecast discussion, Aug 10, 1:56 PM PDT, 6 hours 49 minutes before

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In the hours before

Local storm report, Aug 10, 4:18 PM PDT, 4 hours 27 minutes before

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Special weather statement, Aug 10, 4:19 PM PDT, 4 hours 26 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MISSOULA MT
519 PM MDT TUE AUG 10 2010

MTZ001-003-110000-
FLATHEAD/MISSION VALLEYS-KOOTENAI/CABINET REGION-
519 PM MDT TUE AUG 10 2010

...SIGNIFICANT WEATHER ADVISORY FOR WESTERN FLATHEAD COUNTY UNTIL 600
PM MDT...

AT 512 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
STRONG THUNDERSTORM 18 MILES SOUTHWEST OF KALISPELL...MOVING
NORTHEAST AT 25 MPH.

HAIL UP TO THE SIZE OF PENNIES AND WIND GUSTS UP TO 40 MPH ARE
EXPECTED WITH THIS STORM...ALONG WITH HEAVY RAIN AND FREQUENT
DANGEROUS LIGHTNING.

LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...WHITEFISH AND LUPFER.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF THREATENING WEATHER APPROACHES YOUR AREA...GO INDOORS AND STAY
AWAY FROM WINDOWS. IF YOU ARE CAUGHT OUTSIDE...MOVE TO A WELL
PROTECTED AREA.

&&

LAT...LON 4853 11458 4843 11424 4800 11458 4808 11483
TIME...MOT...LOC 2319Z 204DEG 21KT 4812 11465

Special weather statement, Aug 10, 4:19 PM PDT, 4 hours 26 minutes before

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Special weather statement, Aug 10, 4:27 PM PDT, 4 hours 18 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MISSOULA MT
527 PM MDT TUE AUG 10 2010

MTZ007-110030-
BUTTE/BLACKFOOT REGION-
527 PM MDT TUE AUG 10 2010

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN POWELL COUNTY UNTIL
630 PM MDT...

AT 520 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
STRONG THUNDERSTORM 6 MILES SOUTH OF DEER LODGE...MOVING NORTHEAST AT
30 MPH.

HAIL UP TO ONE-HALF INCH IN DIAMETER AND WIND GUSTS UP TO 40 MPH ARE
EXPECTED WITH THIS STORM...ALONG WITH FREQUENT DANGEROUS LIGHTNING.

LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...DEER LODGE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF THREATENING WEATHER APPROACHES YOUR AREA...GO INDOORS AND STAY
AWAY FROM WINDOWS. IF YOU ARE CAUGHT OUTSIDE...MOVE TO A WELL
PROTECTED AREA.

&&

LAT...LON 4637 11237 4637 11241 4632 11246 4633 11249
      4630 11255 4626 11256 4627 11282 4634 11294
      4661 11269 4644 11230 4641 11231
TIME...MOT...LOC 2327Z 219DEG 24KT 4635 11269

Local storm report, Aug 10, 4:37 PM PDT, 4 hours 8 minutes before

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Special weather statement, Aug 10, 4:47 PM PDT, 3 hours 58 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 10, 5:01 PM PDT	Special Weather Statement	MSO		29 min
Aug 10, 5:42 PM PDT	Special Weather Statement	MSO	Lake	48 min
Aug 10, 5:43 PM PDT	Special Weather Statement	MSO	Missoula	32 min
Aug 10, 6:30 PM PDT	Special Weather Statement	MSO		45 min
Aug 10, 7:57 PM PDT	Special Weather Statement	MSO	Ravalli	48 min
Aug 11, 3:01 PM PDT	Special Weather Statement	MSO	Silver Bow	44 min
Aug 11, 3:10 PM PDT	Special Weather Statement	MSO	Lake	50 min
Aug 10, 5:13 PM PDT	Areal Flood Advisory	MSO	Lemhi	99 min
Aug 10, 7:22 PM PDT	Special Weather Statement	MSO	Lewis	23 min
Aug 10, 7:45 PM PDT	Special Weather Statement	MSO	Idaho	30 min
Aug 10, 8:17 PM PDT	Special Weather Statement	MSO	Idaho	43 min
Aug 10, 9:29 PM PDT	Special Weather Statement	MSO	Clearwater	46 min

Nearby

Severe Thunderstorm Warnings in Idaho, 2010 Every severe thunderstorm warning in 2010

Sources

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