Alert archive / Idaho / Special Weather Statements in 2014

Special Weather Statement, NWS Pocatello, ID

August 6, 2014Teton County, Idaho

NWS Pocatello, ID issued this special weather statement at Aug 6, 2014, 4:19 PM MDT for Teton County, Idaho. It was in force for 56 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 6, 2014, 4:19 PM MDT (22:19 UTC)
Expired
Aug 6, 2014, 5:15 PM MDT
In force
56 min
Issued by
NWS Pocatello, ID

County Teton County, ID

The radar

The Pocatello radar (KSFX), 133 km from the middle of the area, began a volume at 22:19 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 12:00Z, 10.3 hours before the alert went out and 327 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.

Skew-T log-pSkew-T log-p diagram, Salt Lake City I, UT at 12:00Z on 2014-08-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 211 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Salt Lake City I, UT at 12:00Z on 2014-08-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -46 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
211 J/kg
Mixed-layer CIN
-98 J/kg
Mixed-layer LCL
1452 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
-46 m²/s²
0-3 km storm-relative helicity
40 m²/s²
Significant tornado parameter
-0.0
Supercell composite
-0.3

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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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 Aug 6, 1:54 PM MDT, 2 hours 25 minutes earlier.

Area forecast discussion, Aug 6, 1:54 PM MDT, 2 hours 25 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE POCATELLO ID
154 PM MDT WED AUG 6 2014

.DISCUSSION...VERY MOIST LOW PRESSURE SYSTEM REMAINS CENTERED
OVER THE TWIN FALLS AREA THIS AFTERNOON. A DEFORMATION ZONE
EXTENDS NORTHEAST OF THE LOW...BANKED UP AGAINST THE CENTRAL
MOUNTAINS. MODERATE TO HEAVY RAIN IS FALLING IN THIS ZONE WITH
RAINFALL AMOUNTS UP TO AN INCH. SOUTH OF THE DEFORMATION
ZONE...THUNDERSTORMS ARE DEVELOPING. AS WAS THE CASE
YESTERDAY...THESE STORMS ARE PACKING HEAVY RAIN WITH AMOUNTS OF 1
TO 2 INCHES LIKELY IN THUNDERSTORMS. THE LOW WILL MOVE SLOWLY EAST
TONIGHT AND BE OVER EASTERN IDAHO ON THURSDAY. TOMORROW LOOKS TO
BE VERY MUCH A REPEAT OF TODAY...EXCEPT THE LOW WILL BE SHIFTED
OVER THE SOUTHERN HIGHLANDS ON THURSDAY. IT WILL NOT EXIT THE
REGION UNTIL FRIDAY. THEREFORE A FLASH FLOOD WATCH IS IN EFFECT
FOR ALL OF SOUTHEAST IDAHO UNTIL THURSDAY NIGHT.

SLIGHTLY DRIER AIR WILL WORK INTO THE REGION BEHIND THE LOW FOR
FRIDAY AND BEYOND. HOWEVER THERE WILL STILL BE ISOLATED TO SCATTERED
THUNDERSTORMS AROUND...ESPECIALLY IN THE MOUNTAINS. THINK THE FLASH
FLOODING THREAT WILL BE OVER ON FRIDAY THOUGH.

VALLE

&&

.AVIATION...AN UPPER LEVEL LOW CENTERED JUST WEST OF TWIN FALLS
IDAHO IS BRINGING WRAP AROUND MOISTURE TO OUR AREA PARTICULARLY FOR
KBYI AND KSUN. EXPECT IFR/MVFR CONDITIONS FOR KBYI AND KSUN DURING
PERIODS OF MODERATE AND HEAVY RAIN AND THUNDERSTORMS. KPIH AND KIDA
WILL HAVE MOSTLY VICINITY SHOWERS AND THUNDERSTORMS THOUGH BRIEF
SHOWERS AND THUNDERSTORMS ARE POSSIBLE ACCOMPANIED WITH MVFR
CIGS/VIS. EXPECT ANOTHER ROUND OF PRECIPITATION TOMORROW MORNING FOR
ALL TAF SITES BRINGING MVFR/IFR CIGS/VIS.

WYATT

&&

.FIRE WEATHER...AN UPPER LEVEL LOW CENTERED JUST WEST OF TWIN FALLS
IDAHO IS BRINGING HIGH AMOUNTS OF WRAP-AROUND MOISTURE TO OUR AREA.
EXPECT NUMEROUS SHOWERS AND WIDELY SCATTERED TO SCATTERED
THUNDERSTORMS THIS AFTERNOON. EXPECT WIDESPREAD PRECIPITATION AND
ISOLATED TO WIDELY SCATTERED THUNDERSTORMS THURSDAY AND TO AN LESSER
EXTENT ON FRIDAY. TEMPERATURES WILL REMAIN WELL BELOW NORMAL AND
HUMIDITY ON THE HIGH SIDE THROUGH FRIDAY. TEMPERATURES RETURN
TO NEAR TO SLIGHTLY BELOW NORMAL OVER THE WEEKEND.

WYATT

&&

.PIH WATCHES/WARNINGS/ADVISORIES...
FLASH FLOOD WATCH THROUGH THURSDAY EVENING IDZ017>025-031-032.

&&

In the hours before

Local storm report, Aug 6, 3:43 PM MDT, 36 minutes before
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Local storm report, Aug 6, 3:45 PM MDT, 34 minutes before
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Local storm report, Aug 6, 3:49 PM MDT, 30 minutes before
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Local storm report, Aug 6, 3:53 PM MDT, 26 minutes before
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Local storm report, Aug 6, 4:07 PM MDT, 12 minutes before
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Special weather statement, Aug 6, 4:19 PM MDT, 0 minutes before
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The office that day

Everything else NWS Pocatello, ID issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 5, 6:48 PM MDTAreal Flood AdvisoryPIHBannock, Bear Lake, Caribou, Franklin, Oneida3 hr
Aug 5, 6:52 PM MDTSpecial Weather StatementPIHCamas38 min
Aug 5, 7:56 PM MDTSpecial Weather StatementPIHCamas49 min
Aug 5, 8:39 PM MDTSpecial Weather StatementPIHLincoln51 min
Aug 5, 9:16 PM MDTSpecial Weather StatementPIHPower59 min
Aug 5, 11:43 PM MDTAreal Flood AdvisoryPIHCassia6 hr
Aug 5, 11:56 PM MDTAreal Flood AdvisoryPIHLincoln6 hr
Aug 6, 9:09 AM MDTAreal Flood AdvisoryPIHBingham, Blaine, Bonneville, Butte, Clark, Fremont and 1 more3 hr
Aug 6, 10:37 AM MDTAreal Flood AdvisoryPIHBlaine, Cassia, Lincoln, Minidoka, Power3 hr
Aug 6, 11:55 AM MDTFlash Flood WarningPIHBingham, Power2 hr
Aug 6, 12:17 PM MDTAreal Flood AdvisoryPIHClark, Fremont3 hr
Aug 6, 1:13 PM MDTFlash Flood WarningPIHBingham, Blaine, Butte, Minidoka, Power2 hr
Aug 6, 1:23 PM MDTFlash Flood WarningPIHBlaine6 hr
Aug 6, 1:46 PM MDTSevere Thunderstorm WarningPIHBonneville44 min
Aug 6, 2:34 PM MDTSevere Thunderstorm WarningPIHBingham26 min
Aug 6, 2:52 PM MDTFlash Flood WarningPIHBingham, Bonneville, Butte, Jefferson113 min
Aug 6, 3:32 PM MDTFlash Flood WarningPIHBannock, Bingham, Power4 hr
Aug 6, 4:25 PM MDTSpecial Weather StatementPIHJefferson, Madison65 min
Aug 6, 4:38 PM MDTSpecial Weather StatementPIHBonneville52 min

Nearby

Special Weather Statements in Idaho, 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.