Severe Thunderstorm Warning 39, NWS Pocatello, ID

Issued

Jun 28, 2004, 7:03 PM MDT (01:03 UTC)

Expired

Jun 28, 2004, 7:45 PM MDT

In force

42 min

Issued by

NWS Pocatello, ID

Area

Counties, with a storm outline in the text

Counties Blaine County, ID, Butte County, ID

The Pocatello radar (KSFX), 43 km from the middle of the area, began a volume at 01:02 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.

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

679 
WUUS55 KPIH 290103
SVRPIH
IDC013-023-290145-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE POCATELLO/IDAHO FALLS ID
703 PM MDT MON JUN 28 2004

THE NATIONAL WEATHER SERVICE IN POCATELLO/IDAHO FALLS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EAST CENTRAL BLAINE COUNTY IN IDAHO
  SOUTH CENTRAL BUTTE COUNTY IN IDAHO

* UNTIL 745 PM MDT

* AT 700 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING NICKEL SIZE
  HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THESE STORMS WERE
  LOCATED ALONG A LINE EXTENDING FROM EXTREME SOUTH CENTRAL BUTTE
  COUNTY TO EXTREME EAST CENTRAL BLAINE COUNTY...OR ALONG A LINE
  EXTENDING FROM 21 MILES SOUTH OF ARCO TO 30 MILES SOUTH OF ARCO TO
  29 MILES NORTHWEST OF AMERICAN FALLS...AND MOVING NORTHEAST AT 20
  MPH.

* THE LINE OF SEVERE THUNDERSTORMS WILL OTHERWISE REMAIN OVER MAINLY
  RURAL AREAS OF THE INDICATED COUNTIES.

IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CONTINUOUS CLOUD TO
GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS
IMMEDIATELY LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS.
REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE
STRUCK BY LIGHTNING.

LAT...LON 4336 11329 4318 11323 4311 11323 4311 11301
      4334 11299 4350 11307

$$

HEDGES

NWS Pocatello, ID wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 28, 2:30 PM MDT, 4 hours 33 minutes earlier.

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE POCATELLO ID
230 PM MDT MON JUN 28 2004

.DISCUSSION...
LATEST SATELLITE/RADAR IMAGERY SHOWING SCATTERED CONVECTIVE FIRING
ACROSS THE CNTRL IDAHO MOUNTAINS AND NE NEVADA THIS AFTERNOON.
WATER VAPOR SATELLITE IMAGERY CONTINUED TO SHOW A BAGGY TROUGH
ALONG THE CALIFORNIA COAST WHILE A RIDGE EXTENDED NW FROM NEW MEXICO
INTO CNTRL IDAHO.  SHORT-WAVE ENERGY LIFTING NORTH THROUGH THE GREAT
BASIN APPEARED TO BE WELL INITIALIZED BY THE 12Z MODELS.  THE FIRST
WAVE NOTED NORTH OF BOISE WAS HELPING TO INITIATE AN AREA OF STRONG
CONVECTION NW OF MCCALL AND SHOULD HELP TO PROMOTE DEEPER CONVECTION
ACROSS THE CNTRL MOUNTAINS AS IT LIFTS FURTHER ENE TOWARD MISSOULA
THIS AFTERNOON/EVENING.  PRECIPITABLE WATER LEVELS WERE RUNNING
CLOSE TO AN INCH ON THE BOISE SOUNDING THIS MORNING AND HAVE ADDED
HEAVY SHOWERS TO CONVECTIVE WORDING IN THE CNTRL MOUNTAINS THIS
EVENING. THE SECOND WAVE OF CONCERN WAS LIFTING NORTH THROUGH ERN
NEVADA WITH AN ASSOCIATED 300MB 40KT JET SEGMENT SPARKING CONVECTION
ACROSS NE NEVADA.  THE 18Z MESO-ETA DRIVES THIS WAVE NORTH TO THE
IDAHO BORDER AROUND 03Z THIS EVENING WITH CONVECTION SPREADING INTO
THE SRN HIGHLANDS.  THE STRONGEST CONVECTION SHOULD DEVELOP ACROSS
SRN OREGON UNDER BEST DYNAMICAL SUPPORT HOWEVER THE POTENTIAL FOR
ISOLATED SEVERE STORMS IS POSSIBLE ACROSS THE SRN ZONES ALONG
PERIPHERY OF SHEARED ENVIRONMENT.  CONVECTION GENERALLY EXPECTED TO
DIMINISH LATE TONIGHT AS LOSS OF SURFACE HEATING IMPACTS STABILITY
HOWEVER PASSING SHORT-WAVE ENERGY MAY HELP TO SUSTAIN ISOLATED CELLS
THROUGH THE NIGHT. ADDITIONAL SHORT-WAVE ENERGY IS EXPECTED TO LIFT
NORTH THROUGH THE FORECAST AREA TUESDAY SUPPORTING YET ANOTHER ROUND
OF CONVECTION ACROSS SE IDAHO.  AVN CONTINUES TO ADVERTISE DRIER
CONDITIONS WORKING INTO REGION WEDNESDAY AND HAVE STAYED WITH THE
IDEA OF DRIER CONDITIONS ACROSS THE SRN ZONES AND SLIGHT CHANCE POPS
ACROSS THE NRN ZONES WEDNESDAY THROUGH FRIDAY.  AVN THEN ADVERTISING
GULF OF ALASKA LOW SHIFTING WEST AND BREAKING INTO SW CANADA MARKING
THE START OF WHAT APPEARS TO BE A PATTERN CHANGE SUNDAY WITH WNW
FLOW SPREADING ACROSS IDAHO AS EARLY AS MONDAY. HUSTON
&&

.PIH WATCHES/WARNING/ADVISORIES...NONE.
&&

Severe Thunderstorm Warnings in Idaho, 2004Every severe thunderstorm warning in 2004

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.