Severe Thunderstorm Warning 5, NWS Boise, ID

Issued

Jun 26, 2002, 4:21 PM MDT (22:21 UTC)

Expired

Jun 26, 2002, 5:15 PM MDT

In force

54 min

Issued by

NWS Boise, ID

Area

Counties, with a storm outline in the text

Counties Owyhee County, ID, Twin Falls County, ID

The Boise radar (KCBX), 137 km from the middle of the area, began a volume at 22:23 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.

000 
WUUS55 KBOI 262221
SVRBOI
IDC073-083-262315-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BOISE ID
419 PM MDT WED JUN 26 2002

THE NATIONAL WEATHER SERVICE IN BOISE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EASTERN OWYHEE COUNTY IN SOUTHWEST IDAHO
  TWIN FALLS COUNTY IN SOUTH CENTRAL IDAHO

* UNTIL 515 PM MDT

* AT 413 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  A SEVERE THUNDERSTORM NEAR TWIN FALLS MOVING WEST TO NORTHWEST AT  
  25 MPH.

REPORT SEVERE WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY. THEY 
WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST 
OFFICE IN BOISE.

LAT...LON 4242 11488 4253 11469 4282 11578 4227 11605

NWS Boise, ID wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 26, 3:55 PM MDT, 26 minutes earlier.

SOUTHWEST IDAHO/SOUTHEAST OREGON AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BOISE IDAHO
355 PM MDT WED JUN 26 2002

AS TEMPS SOARED INTO THE MID 90S VALLEYS AND UPPER 80S MOUNTAINS AS
OF 3PM CAP BROKE AND FEW TS HAVE BROKE OUT IN CENTRAL-BOISE MTNS
TOWARDS STANLEY WHILE MTN CLOUDS INCREASE.  RUC SHOWS HIGHEST CAPE
(1-3KJ/KG) SHIFTING FROM AN OWYHEES-STEENS-BLUE MTNS AXIS THIS
EVENING INTO THE CENTRAL MTNS NORTHWARD AROUND 03-06Z/9PM-MIDNIGHT
MDT.  THIS INSTABILITY IS NEAR LOW LEVEL THERMALLY INDUCED TROF AXIS
AN WILL BE TRIGGERED BY SIGNIFICANT UPPER LOW NEAR ORE-IDA-NEVADA
TRI-STATE POINT THIS AFTERNOON LIFTING INTO SW IDAHO OVERNIGHT
TONIGHT.  SHEAR INCREASES FROM 15KTS IN 12Z SOUNDING TO 20-30KTS IN
FCST SNDG AS UPPER LOW APPROACHES.  SO TS CELLS SHOULD BECOME MORE
ORGANIZED AND LONGER LIVED LATER THIS AFTN.  LOWER PW SOUTH (0.5)
FOR GUSTY WINDS TO 35 MPH BUT MUCH HIGHER PW NORTHWEST (1.5 BKE 3Z)
FOR LOCAL HEAVY RAIN POTENTIAL BUT NOT AS MUCH ON GUSTS 20-30 MPH.

WEAK MARINE PUSH INTO BKE THURSDAY DOESNT APPEAR TO MAKE IT INTO
S-CENTRAL IDAHO AS THERMAL RIDGE HANGS ON A LITTLE BETTER BUT UPPER
HEIGHTS DO FLATTEN SOMEWHAT FOR THURSDAY THROUGH SATURDAY FOR HIGHS
STILL ABOUT 10F ABOVE NORMAL - AROUND 95 VALLEYS AND 80S MTNS.
DRYER SUNDAY AND SLIGHTLY COOLER THEN TIGHTER WESTERLY FLOW MONDAY
THRU WEDNESDAY.  LAST NIGHTS MRF LESS AMPLIFIED WITH MONDAY COOLING
AND KEEPS TROFFING MAINLY OFFSHORE SO WILL BROAD BRUSH EARLY NEXT
WEEK EXTENDED WITH CLOUDS NORTH AND MOSTLY CLEAR SOUTHEAST.

.BOI...NONE.

MILLS

Severe Thunderstorm Warnings in Idaho, 2002Every severe thunderstorm warning in 2002

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.