Alert archive / Montana / Special Weather Statements in 2014
Special Weather Statement, NWS Missoula, MT
NWS Missoula, MT issued this special weather statement at Aug 2, 2014, 5:27 PM MDT. It was in force for 48 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Aug 2, 2014, 5:27 PM MDT (23:27 UTC)
- Expired
- Aug 2, 2014, 6:15 PM MDT
- In force
- 48 min
- Issued by
- NWS Missoula, MT
The radar
The Pendleton radar (KPDT), 206 km from the middle of the area, began a volume at 23:28 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.
The nearest sounding before it
Boise Airport, ID (KBOI), launched 12:00Z, 11.5 hours before the alert went out and 214 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2581 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- 9 m²/s²
- 0-3 km storm-relative helicity
- 48 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
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</html>What forecasters said that day
The local office's own words before this special weather statement 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 special weather statement went out at Aug 2, 2:45 PM MDT, 2 hours 42 minutes earlier.
Area forecast discussion, Aug 2, 2:45 PM MDT, 2 hours 42 minutes before
Area Forecast Discussion National Weather Service Missoula MT 245 PM MDT Sat Aug 2 2014 .DISCUSSION...An upper level wave brought scattered showers and a few embedded light thunderstorms from 5 am MDT this morning through early this afternoon across southern Idaho County northeast to Granite County. The activity produced several dozen lightning strikes mainly over mountainous areas. As this wave moves eastward, scattered thundershower activity will fire up from Ovando south to Butte this afternoon. Behind it, there is still the potential for showers to develop but may remain over the terrain. Another wave that has produced showers and thunderstorms over northeastern WA and the ID Panhandle will help to induce activity over northwest Montana this afternoon and evening with main threats being gusty winds, lightning and locally heavy rain. The next upper level wave that weather models are keying on has been tracking across central Oregon and is forecast to track across central Idaho into western Montana by daybreak Sunday. A few of the high-resolution models have been hinting at a few storms breaking out over eastern OR/WA and moving over the Camas Prairie by late this afternoon into early evening. If they keep their strength, there is the possibility for strong wind gusts with these storms. As the wave moves through the area tonight, there is a chance for night-time thunderstorms especially across Clearwater and northeastern Idaho Counties in Idaho and from Mineral to Ravalli Counties. Main threats would be locally heavy rain, lightning and gusty winds. On Sunday there will be a general chance for diurnal thunderstorms developing with the higher terrain seeing the best chance for activity. Temperatures will remain above normal for this time of year. Monday, a very wet disturbance that can be traced back to the southwestern us monsoon will graze the northern Rockies. Uncertainty remains high with the trajectory of the system as some models recently started trending to a more southeasterly path over Wyoming. And considerable disagreement among the many weather models continues to cloud the forecast. But, confidence is growing that at least Lemhi county, Idaho, and southwestern Montana will be impacted. The air mass with this system is extremely moist for the Northern Rockies, and has tremendous potential for heavy rain. However, such a moist air mass will cause a lot of cloud cover weakening the biggest driver of rain this time of year, thunderstorms powered by strong surface heating under initially clear skies. As a result, rain is expected to be more wide spread and moderate with a few embedded thunderstorms. Portions of Lemhi county and southwestern Montana may receive half an inch to an inch of rain Monday and Tuesday. The main impact of this could be to set back fire season in the affected area. Portions of central western Montana and the rest of central Idaho will receive less rain, but could still get pretty wet. Northwest Montana may get a few showers, but will be relatively dry overall. && .AVIATION...Widely scattered thunderstorms are developing across the region. KGPI and KBTM look to have the best potential for a passing storm through 03/0300z. A weak weather disturbance may kick off a few thunderstorms after midnight potentially impacting all terminals. Slight chances of storms return again Sunday afternoon which may impact all terminals. && .MSO WATCHES/WARNINGS/ADVISORIES... MT...None. ID...None. && Follow us on Facebook and Twitter! https://www.facebook.com/NWSMissoula https://www.twitter.com/NWSMissoula
In the hours before
Special weather statement, Aug 2, 4:38 PM MDT, 49 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MISSOULA MT 438 PM MDT SAT AUG 2 2014 IDZ006-022330- SOUTHERN CLEARWATER MOUNTAINS- 338 PM PDT SAT AUG 2 2014 ...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL IDAHO COUNTY UNTIL 430 PM PDT... AT 331 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 16 MILES NORTHWEST OF CROOKED CREEK NEAR DIXIE IN MCGUIRE BURN...OR 25 MILES SOUTHEAST OF GRANGEVILLE...MOVING EAST AT 15 MPH. HAIL UP TO ONE-HALF INCH IN DIAMETER AND WIND GUSTS UP TO 40 MPH ARE EXPECTED WITH THIS STORM...ALONG WITH HEAVY RAIN. LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...OROGRANDE. 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 4586 11550 4569 11539 4563 11575 4574 11583 TIME...MOT...LOC 2238Z 250DEG 15KT 4571 11569
Special weather statement, Aug 2, 5:27 PM MDT, 0 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MISSOULA MT 527 PM MDT SAT AUG 2 2014 IDZ006-008-030015- LOWER HELLS CANYON/SALMON RIVER REGION-SOUTHERN CLEARWATER MOUNTAINS- 427 PM PDT SAT AUG 2 2014 ...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN IDAHO COUNTY UNTIL 515 PM PDT... AT 418 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR RIGGINS...OR 37 MILES NORTH OF MCCALL... MOVING NORTHEAST AT 15 MPH. HAIL UP TO THE SIZE OF PENNIES AND WIND GUSTS UP TO 40 MPH ARE EXPECTED WITH THIS STORM. LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...RIGGINS HOT SPRINGS. 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. IN ADDITION...THIS STORM MAY INTENSIFY...SO BE CERTAIN TO MONITOR LOCAL RADIO AND TV STATIONS...AS WELL AS LOCAL CABLE TV OUTLETS...FOR ADDITIONAL INFORMATION AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE. && LAT...LON 4562 11616 4547 11597 4533 11635 4543 11647 TIME...MOT...LOC 2327Z 234DEG 15KT 4545 11627
The office that day
Everything else NWS Missoula, MT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 1, 6:34 PM MDT | Special Weather Statement | MSO | Flathead | 41 min |
| Aug 2, 4:38 PM MDT | Special Weather Statement | MSO | Idaho | 52 min |
| Aug 2, 5:18 PM MDT | Flash Flood Warning | MSO | Idaho | 117 min |
| Aug 2, 5:30 PM MDT | Areal Flood Advisory | MSO | Idaho | 2 hr |
Nearby
Special Weather Statements in Montana, 2014Every special weather statement in 2014
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.