Alert archive / Montana / Special Weather Statements in 2011
Special Weather Statement, NWS Missoula, MT
NWS Missoula, MT issued this special weather statement at Jun 29, 2011, 2:48 PM MDT for Missoula County, Montana. It was in force for 42 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
- Jun 29, 2011, 2:48 PM MDT (20:48 UTC)
- Expired
- Jun 29, 2011, 3:30 PM MDT
- In force
- 42 min
- Issued by
- NWS Missoula, MT
County Missoula County, MT
The radar
The Missoula radar (KMSX), 35 km from the middle of the area, began a volume at 20:51 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
Spokane, WA (KOTX), launched 12:00Z, 8.8 hours before the alert went out and 222 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
- 1044 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 71 m²/s²
- 0-3 km storm-relative helicity
- 119 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 Jun 29, 2:34 PM MDT, 14 minutes earlier.
Area forecast discussion, Jun 29, 2:34 PM MDT, 14 minutes before
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</html>Hazardous weather outlook, Jun 29, 3:41 AM MDT, 11 hours 7 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE MISSOULA MT 341 AM MDT WED JUN 29 2011 IDZ006-MTZ005>007-043-292145- SOUTHERN CLEARWATER MOUNTAINS-MISSOULA/BITTERROOT VALLEYS- BITTERROOT/SAPPHIRE MOUNTAINS-BUTTE/BLACKFOOT REGION- POTOMAC/SEELEY LAKE REGION- 341 AM MDT WED JUN 29 2011 /241 AM PDT WED JUN 29 2011/ THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTH CENTRAL IDAHO AND WEST CENTRAL MONTANA. .DAY ONE...TODAY AND TONIGHT SHOWERS AND THUNDERSTORMS WILL DEVELOP BY EARLY AFTERNOON WITH THE POTENTIAL FOR LARGE HAIL AND DAMAGING WINDS. PERSONS WITH OUTDOOR ACTIVITIES SHOULD KEEP AN EYE TO THE SKY AND STAY ALERT TO LATER FORECASTS FOR POTENTIAL SEVERE WEATHER HEADLINES THROUGHOUT THE DAY. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY CONTINUED RISES IN SMALL STREAMS ARE EXPECTED AS THE TEMPERATURES REBOUND THIS WEEKEND INTO NEXT WEEK. THIS WILL LEAD TO RISING RIVER FLOWS (BOTH SMALL STREAM AND MAIN STEM RIVERS) THROUGH THE WEEK INTO THIS WEEKEND ACROSS ALL OF WESTERN MONTANA AND CENTRAL IDAHO. SOME OF THESE RIVERS AND STREAMS MAY BECOME A CONCERN BY LATER IN THE WEEKEND. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES. IDZ009-292145- WESTERN LEMHI COUNTY- 341 AM MDT WED JUN 29 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTH CENTRAL IDAHO. FOR THE LATEST INFORMATION ON WATCHES...WARNINGS AND ADVISORIES...GO TO WEATHER.GOV/MISSOULA. .DAY ONE...TODAY AND TONIGHT UNSTABLE CONDITIONS WILL ALLOW STRONG WINDS ALOFT TO MIX TO THE SURFACE ACROSS PORTIONS OF EASTERN LEMHI COUNTY. A WIND ADVISORY HAS BEEN ISSUED TO ACCOUNT FOR THESE WINDS. IN ADDITION...SCATTERED THUNDERSTORMS WILL DEVELOP THIS AFTERNOON AND EVENING AND MAY PRODUCE HAIL IN COMBINATION WITH THE WINDS. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY CONTINUED RISES IN SMALL STREAMS ARE EXPECTED AS THE TEMPERATURES REBOUND THIS WEEKEND INTO NEXT WEEK. THIS WILL LEAD TO RISING RIVER FLOWS (BOTH SMALL STREAM AND MAIN STEM RIVERS) THROUGH THE WEEK INTO THIS WEEKEND ACROSS LEMHI COUNTY IDAHO. SOME OF THESE RIVERS AND STREAMS MAY BECOME A CONCERN BY LATER IN THE WEEKEND. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.
In the hours before
Special weather statement, Jun 29, 1:49 PM MDT, 59 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MISSOULA MT
149 PM MDT WED JUN 29 2011
MTZ007-292015-
BUTTE/PINTLAR REGION-
149 PM MDT WED JUN 29 2011
...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN SILVER BOW COUNTY
UNTIL 215 PM MDT...
AT 140 PM MDT...STORM SPOTTERS REPORTED A STRONG THUNDERSTORM NEAR
SILVER BOW...OR 6 MILES SOUTHWEST OF BUTTE...MOVING EAST AT 40 MPH.
HAIL UP TO ONE-HALF INCH IN DIAMETER IS EXPECTED WITH THIS STORM.
LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...MAINLY RURAL AREAS
OF EASTERN SILVER BOW COUNTY.
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 4585 11263 4612 11272 4616 11251 4613 11251
4608 11245 4605 11246 4603 11243 4593 11242
4590 11240 4586 11240
TIME...MOT...LOC 1949Z 262DEG 33KT 4595 11251
ZUMPFESpecial weather statement, Jun 29, 2:45 PM MDT, 3 minutes before
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</html>Special weather statement, Jun 29, 2:48 PM MDT, 0 minutes before
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</html>The office that day
Everything else NWS Missoula, MT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 29, 12:04 PM MDT | Lake Wind Advisory | MSO | Flathead, Lake, Sanders | 6 hr |
| Jun 29, 1:49 PM MDT | Special Weather Statement | MSO | Silver Bow | 26 min |
| Jun 29, 2:45 PM MDT | Special Weather Statement | MSO | Granite | 45 min |
| Jun 29, 3:21 AM MDT | Wind Advisory | MSO | Lemhi | 18 hr |
| Jun 29, 8:40 AM MDT | Areal Flood Warning | MSO | Lemhi | 21 hr |
Nearby
Special Weather Statements in Montana, 2011Every special weather statement 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; radar from the NEXRAD Level II archive.