Alert archive / Idaho / Special Weather Statements in 2012
Special Weather Statement, NWS Pocatello, ID
NWS Pocatello, ID issued this special weather statement at Sep 1, 2012, 6:04 PM MDT for Bannock County, Bingham County, Oneida County, Idaho. It was in force for 41 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
- Sep 1, 2012, 6:04 PM MDT (00:04 UTC)
- Expired
- Sep 1, 2012, 6:45 PM MDT
- In force
- 41 min
- Issued by
- NWS Pocatello, ID
Counties Bannock County, ID, Bingham County, ID, Oneida County, ID
The radar
The Pocatello radar (KSFX), 45 km from the middle of the area, began a volume at 00:05 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
Salt Lake City I, UT (KSLC), launched 00:00Z, 0.1 hours before the alert went out and 228 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
- 2 J/kg
- Mixed-layer CIN
- -87 J/kg
- Mixed-layer LCL
- 2652 m above ground
- 0-6 km bulk shear
- 51 kt
- 0-1 km storm-relative helicity
- -67 m²/s²
- 0-3 km storm-relative helicity
- 92 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 Pocatello, ID wrote its last area forecast discussion before this special weather statement went out at Sep 1, 1:58 PM MDT, 4 hours 6 minutes earlier.
Area forecast discussion, Sep 1, 1:58 PM MDT, 4 hours 6 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE POCATELLO ID 158 PM MDT SAT SEP 1 2012 .SHORT TERM...TSTMS DEVELOPING THIS AFTN AHEAD OF THE NORTHERN STREAM UPPER TROF NEAR THE DIVIDE...WHILE THE SOUTHERN STREAM UPPER TROF IS RESPONSIBLE FOR TSTMS OVER THE EASTERN HIGHLANDS. TSTMS WILL SPREAD TO THE SOUTHERN HIGHLANDS LATER THIS AFTN AS CONVECTION OVER NV AND UT MOVES NORTHWARD. PRECIPITABLE WATER VALUES ARE RUNNING HIGH AGAIN TODAY...SO TSTMS SHOULD PRODUCE MEASURABLE RAINFALL AMOUNTS. TSTMS DIMINISH LATER THIS EVENING AS THE UPPER FLOW DAMPENS OUT THE TROFS....LEADING TO DRY CONDITIONS ON SUNDAY. .LONG TERM...NEXT WEEK LOOKS TO BE DRY THE ENTIRE PERIOD AS THE UPPER FLOW TURNS TO THE NW. THE GFS BRINGS A NORTHERN STREAM UPPER TROF INTO MT ON THU...BUT THE EFFECTS ARE EXPECTED TO REMAIN EAST OF THE DIVIDE. TEMPS WILL GRADUALLY WARMING DURING THE WEEK. HEDGES && .AVIATION...EXPECT MORE SHOWERS AND THUNDERSTORMS THIS AFTERNOON INTO EARLY EVENING WITH MONSOON MOISTURE IN PLACE AND A WEAK BOUNDARY MOVING THROUGH. LOOK FOR VICINITY SHOWERS FOR KSUN AND VICINITY THUNDERSTORMS FOR THE REST OF THE TAF SITES. EXPECT BREEZY WINDS WITH GUSTS NEAR 20 MPH THIS AFTERNOON FOR THE SNAKE RIVER PLAIN. LOOK FOR OUTFLOW GUSTS IN AND AROUND THUNDERSTORMS UP TO 50 MPH. WITH A THUNDERSTORM ON STATION CIGS COULD DROP BRIEFLY TO MVFR. WYATT && .FIRE WEATHER...EXPECT MORE SHOWERS AND THUNDERSTORMS THIS AFTERNOON INTO EARLY EVENING WITH MONSOON MOISTURE IN PLACE AND A WEAK BOUNDARY MOVING THROUGH. LOOK FOR SCATTERED THUNDERSTORMS ACROSS ZONES 410...411...412...413 AND 476 THUS A RED FLAG HAS BEEN ISSUED. EXPECT GUSTY OUTFLOWS OF 40 TO 50 MPH IN AND AROUND THUNDERSTORMS. OTHERWISE...EXPECT BREEZY WINDS AROUND 25 TO 30 MPH ESPECIALLY ACROSS RIDGE TOPS AND THE SNAKE RIVER PLAIN. EXPECT BETWEEN .1 AND .2 INCHES OF RAIN WITH LOCALLY HEAVIER AMOUNTS. EXPECT DRY CONDITIONS AND GRADUAL WARMING THROUGH THE WEEK WITH WEST TO NORTHEAST FLOW. WYATT && .PIH WATCHES/WARNINGS/ADVISORIES... RED FLAG WARNING UNTIL 10 PM MDT THIS EVENING IDZ410>413-476. &&
Hazardous weather outlook, Sep 1, 4:57 AM MDT, 13 hours 7 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE POCATELLO ID 457 AM MDT SAT SEP 1 2012 IDZ017>025-031-032-021100- EASTERN MAGIC VALLEY-SAWTOOTH MOUNTAINS-UPPER SNAKE HIGHLANDS- UPPER SNAKE RIVER PLAIN-LOWER SNAKE RIVER PLAIN- SOUTH CENTRAL HIGHLANDS-CARIBOU HIGHLANDS- CACHE VALLEY/IDAHO PORTION-WASATCH MOUNTAINS/IDAHO PORTION- BIG AND LITTLE WOOD RIVER REGION-LOST RIVER/PAHSIMEROI- 457 AM MDT SAT SEP 1 2012 THIS HAZARDOUS WEATHER OUTLOOK IS FOR EASTERN IDAHO. .DAY ONE...TODAY AND TONIGHT EXPECT SHOWERS AND ISOLATED THUNDERSTORMS TODAY THROUGH EARLY EVENING. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... WE ASK TRAINED SPOTTERS AND CITIZENS TO REPORT SIGNIFICANT WEATHER CONDITIONS WHEN IT IS SAFE TO DO SO. THESE CONDITIONS MAY INCLUDE HAIL...TORNADOES...STRONG WIND...DUST STORMS...SNOWFALL... EXTREME COLD TEMPERATURES...FREEZING RAIN OR HEAVY RAIN...DENSE FOG...AND FLOODING OR ICE JAMS. INFORMATION ABOUT THESE HAZARDOUS CONDITIONS SHOULD BE CALLED INTO YOUR NATIONAL WEATHER SERVICE OFFICE IN POCATELLO USING THE 1-800 SEVERE WEATHER HOTLINE...OR 208-233-0834.
In the hours before
Special weather statement, Sep 1, 3:06 PM MDT, 2 hours 58 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE POCATELLO ID
306 PM MDT SAT SEP 1 2012
IDZ022>024-012200-
CARIBOU ID-ONEIDA ID-BANNOCK ID-FRANKLIN ID-
306 PM MDT SAT SEP 1 2012
THE NATIONAL WEATHER SERVICE IN POCATELLO HAS ISSUED A
SIGNIFICANT WEATHER ADVISORY FOR...
WEST CENTRAL FRANKLIN COUNTY IN SOUTHEAST IDAHO
SOUTHEASTERN BANNOCK COUNTY IN SOUTHEAST IDAHO
EAST CENTRAL ONEIDA COUNTY IN SOUTHEAST IDAHO
SOUTHWESTERN CARIBOU COUNTY IN SOUTHEAST IDAHO
UNTIL 400 PM MDT
AT 301 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM NEAR CHERRY CREEK...MOVING NORTH AT 35 MPH.
HAIL UP TO THE SIZE OF PENNIES AND WIND GUSTS UP TO 45 MPH ARE
EXPECTED WITH THIS STORM...ALONG WITH FREQUENT DANGEROUS LIGHTNING.
LOCATIONS IMPACTED INCLUDE...
SWAN LAKE...
VIRGINIA...
LAT...LON 4203 11210 4209 11233 4265 11216 4255 11174
4241 11184 4241 11190 4233 11190
TIME...MOT...LOC 2106Z 200DEG 29KT 4215 11217
EPSpecial weather statement, Sep 1, 5:17 PM MDT, 47 minutes before
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</html>The office that day
Everything else NWS Pocatello, ID issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 1, 6:33 PM MDT | Areal Flood Advisory | PIH | Cassia | 2 hr |
| Sep 1, 7:05 PM MDT | Areal Flood Advisory | PIH | Bannock, Bingham, Bonneville, Fremont, Jefferson, Madison and 1 more | 3 hr |
Nearby
Special Weather Statements in Idaho, 2012Every special weather statement in 2012
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.