Alert archive / Montana / Lake Wind Advisories in 2011
Lake Wind Advisory 10, NWS Missoula, MT
NWS Missoula, MT issued this lake wind advisory at Sep 2, 2011, 7:12 AM MDT for Flathead County, Lake County, Sanders County, Montana. It was in force for 6 hr.
The area
The counties it named.
The facts
- Issued
- Sep 2, 2011, 7:12 AM MDT (13:12 UTC)
- Expired
- Sep 2, 2011, 1:32 PM MDT
- In force
- 6 hr
- Issued by
- NWS Missoula, MT
Counties Flathead County, MT, Lake County, MT, Sanders County, MT
The nearest sounding before it
Spokane, WA (KOTX), launched 12:00Z, 1.2 hours before the alert went out and 149 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
- 1780 m above ground
- 0-6 km bulk shear
- 74 kt
- 0-1 km storm-relative helicity
- -53 m²/s²
- 0-3 km storm-relative helicity
- 107 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this lake wind advisory 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 lake wind advisory went out at Sep 2, 3:33 AM MDT, 3 hours 39 minutes earlier.
Area forecast discussion, Sep 2, 3:33 AM MDT, 3 hours 39 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE MISSOULA MT 333 AM MDT FRI SEP 2 2011 .DISCUSSION...NORTHWESTERLY FLOW WILL PERSIST OVER THE NORTHERN ROCKIES TODAY. A WEAK DISTURBANCE WILL DROP OUT OF ALBERTA CANADA INTO EASTERN MONTANA TODAY WHICH WILL KEEP A FEW SHOWERS GOING AROUND GLACIER PARK. GUSTY WESTERLY WINDS ARE ANTICIPATED TO MIX TO THE SURFACE THIS AFTERNOON AS THE ATMOSPHERE DESTABILIZES. GUSTS UP TO 30 MPH SHOULD BE EXPECTED IN THE VALLEYS WHILE THE HIGHER TERRAIN COULD SEE GUSTS UP TO 40 MPH AND LOCALLY 50 MPH. THE WINDS ARE EXPECTED TO DIMINISH AFTER SUNSET THIS EVENING. TEMPERATURES WILL REMAIN AROUND 5 DEGREES BELOW NORMAL. A RIDGE OF HIGH PRESSURE WILL QUICKLY BUILD BACK OVER THE NORTHERN ROCKIES THIS WEEKEND CAUSING A WARMING AND DRYING TREND. TEMPERATURES SHOULD BECOME 5 DEGREES ABOVE NORMAL BY SUNDAY. CONTINUED WARM AND DRY CONDITIONS ARE EXPECTED FOR LABOR DAY AND THE REMAINDER OF THE WEEK. HIGH PRESSURE WILL STRENGTHEN FURTHER AS THE WEEK PROGRESSES...CAUSING DAYTIME HIGH TEMPERATURES TO RANGE IN THE MID 80S TO LOW 90S ACROSS THE NORTHERN ROCKIES. EXPECT THESE PLEASANT LATE-SUMMER CONDITIONS TO PERSIST INTO THE START OF NEXT WEEKEND AS WELL. && .AVIATION...NORTHWESTERLY FLOW WILL PERSIST OVER THE NORTHERN ROCKIES TODAY. SHOWERS ARE ANTICIPATED TO REMAIN ALONG THE NORTHERN PORTION OF THE CONTINENTAL DIVIDE TODAY. SO MOUNTAIN TOPS AND HIGH PASSES COULD BE OBSCURED TODAY ACROSS EXTREME NORTHWEST MONTANA. THIS AFTERNOON THE ATMOSPHERE WILL DESTABILIZE ALLOWING FOR GUSTY WESTERLY WINDS TO MIX TO THE SURFACE. KGPI...KMSO AND KBTM COULD POTENTIALLY SEE GUSTS UP TO 25 KNOTS BY MID TO LATE AFTERNOON. THE WINDS SHOULD DIMINISH AFTER SUNSET THIS EVENING. && NOTE: FLOOD WATCHES...WARNINGS AND ADVISORIES WILL NOT BE LISTED BELOW. .MSO WATCHES/WARNINGS/ADVISORIES... MT...NONE. ID...NONE. && SHORT TERM...SMITH LONG TERM....ALLEGRETTO AVIATION...SMITH
The office that day
Everything else NWS Missoula, MT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 2, 7:12 AM MDT | Wind Advisory | MSO | Flathead, Lake | 6 hr |
| Sep 2, 1:32 PM MDT | Frost Advisory | MSO | Flathead, Lake, Lincoln, Mineral, Missoula, Ravalli and 1 more | 19 hr |
Nearby
Lake Wind Advisories in Montana, 2011Every lake wind advisory in 2011
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.