Severe Thunderstorm Warning 20, NWS Pocatello, ID

Issued

Jul 15, 2001, 4:48 PM MDT (22:48 UTC)

Expired

Jul 15, 2001, 5:45 PM MDT

In force

57 min

Issued by

NWS Pocatello, ID

Area

Whole counties; the outline is the Mesonet’s reconstruction

Counties Bannock County, ID, Bingham County, ID

000 
WUUS55 KPIH 152253
SVRPIH

IDC005-011-152315-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE POCATELLO/IDAHO FALLS ID
448 PM MDT SUN JUL 15 2001

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

* SEVERE THUNDERSTORM WARNING FOR...
  EXTREME NORTHWESTERN BANNOCK COUNTY IN IDAHO
  SOUTH CENTRAL BINGHAM COUNTY IN IDAHO
  AND EXTREME NORTHEASTERN POWER COUNTY
  THIS INCLUDES THE CITIES OF BLACKFOOT...FORT HALL AND ARBON 

* UNTIL 545 PM MDT

* AT 439 PM MDT...A LINE OF SEVERE THUNDERSTORMS WAS LOCATED
  BETWEEN FORT HALL AND ARBON...OR JUST WEST OF THE POCATELLO 
  AIRPORT...MOVING NORTHEAST AT 15 MPH.

* THE SEVERE THUNDERSTORM LINE WILL BE NEAR...
  THE POCATELLO AIRPORT AT 505 PM
  NEAR CHUBBOCK AT 515 PM AND
  NEAR BLACKFOOT AT 525PM MDT

THE LINE OF THUNDERSTORMS HAS THE HISTORY OF PRODUCING LARGE HAIL
...STRONG WINDS AND BRIEF HEAVY DOWNPOURS OF RAIN.

REPORT SEVERE WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY. THEY
WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST
OFFICE IN POCATELLO/IDAHO FALLS.

LAT...LON 4290 11267 4285 11260 4312 11220 4323 11237

NWS Pocatello, ID wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 15, 2:45 PM MDT, 2 hours 3 minutes earlier.

SOUTHEAST IDAHO AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE POCATELLO/IDAHO FALLS ID
245 PM MDT SUN JUL 15 2001

UPPER LOW NORTH OF VANCOUVER ISLE WILL MIGRATE SLOWLY NORTHEAST WITH
COLD FRONT PUSHING EAST DURING DAY ON MON.  H5 TROUGH EXTENDS S TO CAL
COAST WITH MINOR SHORTWAVES SPOKING NE IN FLOW ALOFT OVER ID.  ONE
REGION OF CONVECTION FORMING OVER CUSTER COUNTY VICINTY OF UPPER LOW
WHILE SECOND REGION FORMING FROM DIURNAL HEARING OVER SOUTH ID.  NEW
ETA/MESO-ETA RUNS RESOLVED DRY TREND THIS AFTERNOON OVER PIH CWA TODAY
AND PREFER AS MODELS OF CHOICE.  H7 FRONTOGENETIC REGION CROSSES AREA
MON NIGHT INTO EARLY TUE BUT THE UPPER DIVERGENCE THAT WAS LOCATED
OVER CENTRAL ID AND EXTREME ZONE 19 TODAY WILL BE MOVING OUT OF AREA
ON MON.  AIR MASS BECOMES INCREASING DRIER BY TUE-WED SO WILL KEEP
POPS IN SLIGHT CHC/CHC BRACKET ALL 4 PERIODS.  ETA RUN PAINTS LI
REGION OF -2 TO -4 OVER EASTERN HIGHLANDS (SO POPS A LITTLE HIGHER
THERE) ON MON THEN GRADUALLY PUSHES INSTABILITY AXIS FURTHER EAST WITH
UPPER TROUGH AXIS ON TUE.  MODELS INDICATE SOME BOUNDARY LAYER COOLING
TUE-WED SO AGREE WITH IDEA OF HIGHS UPPER 70S TO LOWER 80S VALLEYS AND
70S MOUNTAINS.  WINDS...UPSLOPE 15 TO 25 MPH ON MON THEN DECREASING TO
10 TO 15 MPH ON TUE POST-COLD FRONT.

EXTENDED...UPPER LOW SPLITS WITH PRIMARY LOW SHIFTING INTO ALBERTA ON
WED WITH SECONDARY LOW OFF WEST OR COAST AS TROUGH AXIS BECOMES MORE
POSITIVELY TILTED OVER TIME.  GREAT BASIN HIGH BUILDS BETWEEN TWO
SYSTEMS ON THU/FRI ALLOWING A DRYING TREND.  THIS WILL BOOST TEMPS
BACK TO MORE NORMAL LEVELS BY FRI-SUN.

TA

BYI 56/83/53/80 3222

.KSFX WSR-88D...OPERATIONAL...VCP 21.

PIH B]B 054/082 050/080 047 04322

.PIH...NONE

Severe Thunderstorm Warnings in Idaho, 2001Every severe thunderstorm warning in 2001

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.