Alert archive / Idaho / Special Weather Statements in 2016

Special Weather Statement, NWS Pocatello, ID

August 7, 2016Bonneville County, Idaho

NWS Pocatello, ID issued this special weather statement at Aug 7, 2016, 5:09 PM MDT for Bonneville County, Idaho. It was in force for 36 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 7, 2016, 5:09 PM MDT (23:09 UTC)
Expired
Aug 7, 2016, 5:45 PM MDT
In force
36 min
Issued by
NWS Pocatello, ID

County Bonneville County, ID

The radar

The Pocatello radar (KSFX), 111 km from the middle of the area, began a volume at 23:11 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

Riverton, WY (KRIW), launched 12:00Z, 11.2 hours before the alert went out and 238 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, Riverton, WY at 12:00Z on 2016-08-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Riverton, WY at 12:00Z on 2016-08-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 6 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2103 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
6 m²/s²
0-3 km storm-relative helicity
78 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

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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 7, 2:26 PM MDT, 2 hours 43 minutes earlier.

Area forecast discussion, Aug 7, 2:26 PM MDT, 2 hours 43 minutes before
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In the hours before

Special weather statement, Aug 7, 11:14 AM MDT, 5 hours 55 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE POCATELLO ID
1114 AM MDT SUN AUG 7 2016

IDZ025-071815-
WASATCH MOUNTAINS/IDAHO PORTION ID-
1114 AM MDT SUN AUG 7 2016

...WINDS IN EXCESS OF 40 MPH FOR SOUTHEASTERN BEAR LAKE COUNTY UNTIL
1215 PM MDT...

AT 1113 AM MDT...DOPPLER RADAR WAS TRACKING A LINE OF STRONG
THUNDERSTORMS ALONG A LINE EXTENDING FROM NEAR MONTPELIER TO NEAR
GARDEN CITY...AND MOVING EAST AT 15 MPH.

WINDS IN EXCESS OF 40 MPH WILL BE POSSIBLE WITH THESE STORMS.

LOCATIONS IMPACTED INCLUDE...
MONTPELIER...BEAR LAKE IDAHO PORTION...SAINT CHARLES...DINGLE...
PARIS...BLOOMINGTON...GENEVA...FISH HAVEN...OVID...BERN...LIBERTY...
BORDER SUMMIT...PEGRAM AND GENEVA SUMMIT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THESE STORMS.
LIGHTNING CAN STRIKE 15 MILES AWAY FROM A THUNDERSTORM. SEEK A SAFE
SHELTER INSIDE A BUILDING OR VEHICLE.

IF ON OR NEAR BEAR LAKE...GET OUT OF THE WATER AND MOVE INDOORS OR
INSIDE A VEHICLE. REMEMBER...LIGHTNING CAN STRIKE OUT TO 15 MILES
FROM THE PARENT THUNDERSTORM. IF YOU CAN HEAR THUNDER...YOU ARE
CLOSE ENOUGH TO BE STRUCK BY LIGHTNING. MOVE TO SAFE SHELTER NOW.
DO NOT BE CAUGHT ON THE WATER IN A THUNDERSTORM.

&&

LAT...LON 4200 11149 4234 11146 4240 11105 4200 11105
TIME...MOT...LOC 1713Z 261DEG 15KT 4232 11140 4200 11141

VALLE
Special weather statement, Aug 7, 12:47 PM MDT, 4 hours 22 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE POCATELLO ID
1247 PM MDT SUN AUG 7 2016

IDZ024-025-071915-
CACHE VALLEY/IDAHO PORTION ID-WASATCH MOUNTAINS/IDAHO PORTION ID-
1247 PM MDT SUN AUG 7 2016

...DIME SIZE HAIL AND WINDS IN EXCESS OF 40 MPH AFFECTING
SOUTHWESTERN FRANKLIN COUNTY UNTIL 115 PM MDT...

AT 1247 PM MDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM
OVER PRESTON...MOVING NORTHEAST AT 40 MPH.

DIME SIZE HAIL AND WINDS IN EXCESS OF 40 MPH WILL BE POSSIBLE WITH
THIS STORM.

LOCATIONS IMPACTED INCLUDE...
PRESTON...FRANKLIN...DAYTON...WESTON...CLIFTON...
RIVERDALE AND WHITNEY.

LAT...LON 4200 11202 4218 11200 4221 11177 4200 11174
TIME...MOT...LOC 1847Z 216DEG 36KT 4206 11190

VALLE
Special weather statement, Aug 7, 12:59 PM MDT, 4 hours 10 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE POCATELLO ID
1259 PM MDT SUN AUG 7 2016

IDZ020-071930-
UPPER SNAKE RIVER PLAIN ID-
1259 PM MDT SUN AUG 7 2016

...HALF INCH HAIL AND WINDS IN EXCESS OF 40 MPH AFFECTING
SOUTHEASTERN JEFFERSON...SOUTHWESTERN MADISON AND NORTH CENTRAL
BONNEVILLE COUNTIES UNTIL 130 PM MDT...

AT 1259 PM MDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM
NEAR UCON...MOVING NORTHEAST AT 45 MPH.

HALF INCH HAIL AND WINDS IN EXCESS OF 40 MPH WILL BE POSSIBLE WITH
THIS STORM.

LOCATIONS IMPACTED INCLUDE...
RIGBY...LORENZO...UCON...RIRIE...ARCHER...HEISE AND THORNTON.

LAT...LON 4349 11186 4360 11202 4379 11189 4366 11162
TIME...MOT...LOC 1859Z 225DEG 37KT 4359 11186

VALLE
Local storm report, Aug 7, 1:35 PM MDT, 3 hours 34 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE POCATELLO ID
135 PM MDT SUN AUG 07 2016

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0134 PM     HAIL             SSW CHALLIS             44.50N 114.23W
08/07/2016  E0.50 INCH       CUSTER             ID   TRAINED SPOTTER

            SPOTTER REPORT FROM CHALLIS ESTIMATED 1/4 TO 1/2 INCH
            HAIL ONGOING AT THIS TIME.

&&

RSURVICK
Local storm report, Aug 7, 2:14 PM MDT, 2 hours 55 minutes before
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Special weather statement, Aug 7, 5:09 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 6, 9:58 PM MDTRed Flag WarningPIHBannock, Bear Lake, Bingham, Bonneville, Butte, Caribou and 14 more23 hr
Aug 7, 3:08 AM MDTLake Wind AdvisoryPIH16 hr
Aug 7, 11:14 AM MDTSpecial Weather StatementPIHBear Lake61 min
Aug 7, 11:27 AM MDTSevere Thunderstorm WarningPIHBonneville33 min
Aug 7, 12:33 PM MDTSevere Thunderstorm WarningPIHCaribou42 min
Aug 7, 12:47 PM MDTSpecial Weather StatementPIHFranklin28 min
Aug 7, 12:59 PM MDTSpecial Weather StatementPIHMadison31 min
Aug 7, 1:10 PM MDTSevere Thunderstorm WarningPIHBonneville35 min
Aug 7, 2:08 PM MDTSevere Thunderstorm WarningPIHBear Lake37 min

Nearby

Special Weather Statements in Idaho, 2016Every special weather statement in 2016

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.