Alert archive / Idaho / Special Weather Statements in 2012
Special Weather Statement, NWS Pocatello, ID
NWS Pocatello, ID issued this special weather statement at Jul 9, 2012, 9:59 PM MDT for Clark County, Idaho. It was in force for 61 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
- Jul 9, 2012, 9:59 PM MDT (03:59 UTC)
- Expired
- Jul 9, 2012, 11:00 PM MDT
- In force
- 61 min
- Issued by
- NWS Pocatello, ID
County Clark County, ID
The radar
The Pocatello radar (KSFX), 128 km from the middle of the area, began a volume at 04:00 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 00:00Z, 4.0 hours before the alert went out and 328 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
- 577 J/kg
- Mixed-layer CIN
- -75 J/kg
- Mixed-layer LCL
- 3626 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 182 m²/s²
- 0-3 km storm-relative helicity
- 164 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.9
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 Jul 9, 1:08 PM MDT, 8 hours 51 minutes earlier.
Area forecast discussion, Jul 9, 1:08 PM MDT, 8 hours 51 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE POCATELLO ID 108 PM MDT MON JUL 9 2012 .DISCUSSION...PERSISTENT UPPER RIDGE OVER THE GREAT BASIN WILL CONTINUE THE TREND OF ABOVE NORMAL TEMPS THRU THE END OF THE WEEK. MONSOON MOISTURE CONTINUES TO FLOW INTO THE REGION ON THE BACK SIDE OF THE RIDGE. AFTERNOON/EVE TSTMS WILL CONTINUE EACH DAY...MAINLY OVER THE MTNS. THE RIDGE GETS KNOCKED DOWN A LITTLE OVER TTHE NORTHERN ROCKIES ON WED...FORCING THE MONSOON MOISTURE MORE TO THE EAST. THIS IS WHERE MOST OF THE TSTM ACTIVITY SHOULD BE ON WED. AS AN UPPER LOW MAKES ITS WAY TO THE CA/OR COAST ON FRI...THE UPPER FLOW OVER THE GREAT BASIN WILL TURN MORE SOUTHERLY. THIS WILL AGAIN ALLOW MONSOON MOISTURE BACK INTO ID...RESULTING IN ISOLD TO WIDELY SCATTERED TSTMS OVER MUCH OF THE REGION. AFTN TEMPS MAY FALL BACK A COUPLE OF DEGREES THRU THE WEEKEND DUE TO INCREASED CLOUD COVER... BUT WILL STILL BE ON THE WARM SIDE. HEDGES && .AVIATION...SHOWERS AND THUNDERSTORMS WILL CONTINUE OFF AND ON THROUGH TOMORROW. MOST STORMS WILL OCCUR OVER THE MOUNTAINS ALTHOUGH A FEW STORMS ARE POSSIBLE ACROSS THE SNAKE PLAIN ESPECIALLY DUE TO OUTFLOW BOUNDARIES COLLIDING AND POPPING UP NEW ACTIVITY. THE OVERALL WIND PATTERN WILL CONTINUE TO BE DOMINATED BY UPVALLEY/DOWNVALLEY FLOW BUT BECOME OVERALL WESTERLY AS THE HIGH SHIFTS TO OUR SOUTH. FOR FOLKS FLYING INTO KSUN FOR THE FLY-IN...EXPECT TO SEE AT LEAST VCTS IN THE COMING DAYS ALTHOUGH THE THREAT GRADUALLY DECREASES THROUGH THURSDAY. WINDS WILL CONTINUE TO BE RATHER STRONG DOWNVALLEY AT NIGHT BECOMING LIGHT UPVALLEY DURING THE DAY...UNLESS INTERRUPTED BY THUNDERSTORM OUTFLOW. KEYES && .FIRE WEATHER...MOISTURE WILL CONTINUE TO ROTATE AROUND HIGH PRESSURE TO OUR SOUTH. THE HIGHEST THREAT REMAINS OVER THE CENTRAL MOUNTAINS THROUGH TONIGHT WITH AT LEAST WIDELY SCATTERED THUNDERSTORMS IN THE OFFING. THE RED FLAG WARNING FOR LOWER ELEVATIONS OF 476 REMAINS IN PLACE THROUGH MIDNIGHT. THE THREAT OF STORMS GRADUALLY DECREASES THROUGH THURSDAY AS SLIGHTLY DRIER AIR WORKS INTO IDAHO. FOR TOMORROW WE ARE EXPECTING THE HIGHEST THREAT ALONG THE MONTANA BORDER NEAR PLACES LIKE LEMHI COUNTY...MONIDA AND ISLAND PARK WITH MORE ISOLATED ACTIVITY ELSEWHERE. RIGHT NOW...THE THINKING IS WHERE THE CRITICAL FUELS ARE IN THOSE AREAS THE THREAT WILL BE TOO LOW FOR A RED FLAG WARNING. WE WILL CONTINUE TO MONITOR AND MAKE CHANGES IF NECESSARY. WEDNESDAY AND THURSDAY WILL SEE ISOLATED STORMS OVER THE MOUNTAINS WITH LITTLE THREAT FOR THE SNAKE PLAIN. WITH THE MOISTURE CONTENT SLOWING DECREASING...THE STORM MODE WILL SHIFT MORE TOWARD DRY VERSUS THE MIX WE HAVE SEEN RECENTLY. IT WILL CONTINUE TO BE HOT WITH LOWER AFTERNOON HUMIDITY. HAINES INDICES SHOULD REMAIN AT 5 FOR THE NEXT FEW DAYS. KEYES && .PIH WATCHES/WARNINGS/ADVISORIES... RED FLAG WARNING UNTIL MIDNIGHT MDT TONIGHT IDZ476. &&
Hazardous weather outlook, Jul 9, 3:28 AM MDT, 18 hours 31 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE POCATELLO ID 328 AM MDT MON JUL 9 2012 IDZ017>025-031-032-100930- 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- 328 AM MDT MON JUL 9 2012 THIS HAZARDOUS WEATHER OUTLOOK IS FOR EASTERN IDAHO. .DAY ONE...TODAY AND TONIGHT ISOLATED THUNDERSTORMS ARE EXPECTED TODAY...MAINLY OVER THE CENTRAL MOUNTAINS. THE STORMS MAY BRIEF HEAVY RAIN AND GUSTY OUTFLOW WINDS. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY AFTERNOON AND EVENING THUNDERSTORMS ARE POSSIBLE...ESPECIALLY OVER HIGHER TERRAIN...THROUGH THE COMING WEEK. SOME AREAS OVER THE SNAKE PLAIN AND EASTERN MAGIC VALLEY MAY SEE TEMPERATURES NEAR 100 DEGREES TUESDAY THROUGH THURSDAY. .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, Jul 9, 7:20 PM MDT, 2 hours 39 minutes before
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</html>Special weather statement, Jul 9, 7:43 PM MDT, 2 hours 16 minutes before
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</html>Local storm report, Jul 9, 7:47 PM MDT, 2 hours 12 minutes before
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</html>Local storm report, Jul 9, 7:54 PM MDT, 2 hours 5 minutes before
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</html>Special weather statement, Jul 9, 8:49 PM MDT, 1 hour 10 minutes before
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</html>Special weather statement, Jul 9, 9:59 PM MDT, 0 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 |
|---|---|---|---|---|
| Jul 9, 6:00 PM MDT | Special Weather Statement | PIH | Custer | 45 min |
| Jul 9, 6:43 PM MDT | Special Weather Statement | PIH | Power | 62 min |
| Jul 9, 7:20 PM MDT | Special Weather Statement | PIH | Bannock | 40 min |
| Jul 9, 7:43 PM MDT | Special Weather Statement | PIH | Clark | 62 min |
| Jul 9, 8:49 PM MDT | Special Weather Statement | PIH | Clark | 41 min |
| Jul 10, 4:15 AM MDT | Red Flag Warning | PIH | Bannock, Bear Lake, Bingham, Bonneville, Butte, Caribou and 10 more | 17 hr |
| Jul 10, 3:25 PM MDT | Special Weather Statement | PIH | Power | 35 min |
| Jul 10, 4:08 PM MDT | Special Weather Statement | PIH | Franklin | 52 min |
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.