Alert archive / Idaho / Special Weather Statements in 2015

Special Weather Statement, NWS Pocatello, ID

June 3, 2015Bear Lake County, Idaho

NWS Pocatello, ID issued this special weather statement at Jun 3, 2015, 2:12 PM MDT for Bear Lake County, Idaho. It was in force for 63 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 3, 2015, 2:12 PM MDT (20:12 UTC)
Expired: Jun 3, 2015, 3:15 PM MDT
In force: 63 min
Issued by: NWS Pocatello, ID

County Bear Lake County, ID

The radar

The Salt Lake City radar (KMTX), 138 km from the middle of the area, began a volume at 20:15 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, 8.2 hours before the alert went out and 254 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1234 m above ground
0-6 km bulk shear: 35 kt
0-1 km storm-relative helicity: -31 m²/s²
0-3 km storm-relative helicity: 45 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

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 Jun 3, 1:36 PM MDT, 36 minutes earlier.

Area forecast discussion, Jun 3, 1:36 PM MDT, 36 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE POCATELLO ID
136 PM MDT WED JUN 3 2015

.SHORT TERM...TONIGHT THROUGH FRIDAY. BROAD SHORTWAVE EMBEDDED
WITHIN A MEAN EASTERN PACIFIC TROUGH WILL SWEEP EASTWARD THROUGH
THE AREA THIS EVENING. THIS ALONG WITH FAVORABLE JET
DYNAMICS...MODEST INSTABILITY...AND DECENT SHEAR VALUES WILL ALLOW
FOR ISOLATED TO SCATTERED THUNDERSTORMS THIS EVENING...ESPECIALLY
IN HIGHER TERRAIN. MARGIANAL SEVERE THREAT WITH THIS
ACTIVITY...WITH THE MAIN THREAT BEING GUSTY WINDS DUE TO INVERTED
V SOUNDINGS AND ABUNDANT DRY AIR ALOFT. A LESSER HAIL THREAT
EXISTS DUE TO MODEST INGREDIENTS AVAILABLE. AREA WILL BE BETWEEN
SYSTEMS TOMORROW BEHIND DEPARTING SHORTWAVE AND WITHIN A REGION
OF SOUTHERLY FLOW AHEAD OF A DEVELOPING CLOSED LOW OVER CA.
NEVERTHELESS...EXPECT SOME ISOLATED SHOWERS AND STORMS MAINLY IN
THE HIGHER TERRAIN WITH JUST ENOUGH MOISURE AVAILABLE TO HELP AID
DEVELOPMENT. CLOSED LOW WILL MEANDER SOUTHWARD OVER CA THROUGH
FRIDAY...WITH THE SE ID REGION REMAINING IN THE MOIST SOUTHERLY
FLOW ON THE NORTHEAST FRINGES OF THE CIRCULATION. THUS...EXPECT
OCCASIONAL SHOWERS AND THUNDERSTORMS TOMORROW NIGHT AND
FRIDAY...BEST CHANCES AGAIN IN THE HIGHER TERRAIN. WITH
PRECIPITABLE WATER VALUES NEAR CLIMO...DO NOT EXPECT WIDESPREAD
SIGNIFICANT RAINFALL TOTALS. AD/DMH

.LONG TERM...FRIDAY NIGHT THROUGH TUESDAY.

LOW PRESSURE OVER SOUTHERN CALIFORNIA WILL MOVE THROUGH SOUTHERN
NEVADA AND UTAH THROUGH THE WEEKEND. THIS WILL PRODUCE SCATTERED
THUNDERSTORMS ACROSS CENTRAL AND EASTERN IDAHO THROUGH THE WEEKEND.
MODELS BEGIN TO SPLIT FOR NEXT WEEK. MODELS SHOW THIS LOW MOVING
INTO THE MIDWEST. HOWEVER THE MODELS ARE TRENDING VERY GENERALLY
TOWARD A DIRTY RIDGE SETUP FOR NEXT WEEK WITH ISOLATED STORMS MAINLY
IN THE MOUNTAINS AND HIGHLANDS ALONG WITH MUCH WARMER TEMPS. THERE
HAVE BEEN CONSISTENCY ISSUES BOTH RUN TO RUN AND MODEL TO MODEL FOR
NEXT WEEK SO FORECAST IS A BIT SHAKY AT THIS POINT.

VALLE

&&

.AVIATION...VCTS ALL TERMINALS THROUGH 03Z THIS EVENING...WITH THE
BEST CHANCES AT SUN...TAPERING TO VCSH THROUGH MUCH OF THE
OVERNIGHT ALL TERMINALS. CONVECTIVE THREAT LOWER COMPARED TO PAST
SEVERAL DAYS...THUS OVERALL CONFIDENCE OF CONVECTION AT A
PARTICULAR TERMINAL AT A GIVEN TIME IS LOW. OTHERWISE VFR
CONDITIONS WITH WINDS UNDER 12KT OUTSIDE OF THUNDERSTORMS THROUGH
THE PERIOD. RENEWED CHANCES FOR VCSH AND VCTS TOMORROW AFTERNOON
AND EVENING AS THE AREA WILL BE ON THE FRINGES OF A DEVELOPING
UPPER LOW OVER CA. AD/DMH

&&

.PIH WATCHES/WARNINGS/ADVISORIES...
NONE.
&&

In the hours before

Special weather statement, Jun 3, 2:12 PM MDT, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE POCATELLO ID
212 PM MDT WED JUN 3 2015

IDZ025-032115-
WASATCH MOUNTAINS/IDAHO PORTION ID-
212 PM MDT WED JUN 3 2015

...FREQUENT LIGHTNING...HALF INCH HAIL AND WINDS IN EXCESS OF 30 MPH
AFFECTING SOUTHEASTERN BEAR LAKE COUNTY UNTIL 315 PM MDT...

AT 211 PM MDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR
LAKETOWN...MOVING NORTH AT 20 MPH.

FREQUENT LIGHTNING...HALF INCH HAIL AND WINDS IN EXCESS OF 30 MPH
ARE POSSIBLE WITH THIS STORM.

LOCATIONS IMPACTED INCLUDE...
BEAR LAKE IDAHO PORTION...SAINT CHARLES AND FISH HAVEN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM.
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 11110 4200 11145 4221 11137 4211 11105
      4208 11105
TIME...MOT...LOC 2011Z 201DEG 19KT 4179 11140

VALLE

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 3, 4:58 PM MDT	Special Weather Statement	PIH	Caribou	47 min

Nearby

Special Weather Statements in Idaho, 2015 Every special weather statement in 2015

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.