1 winter storm, as filed by the National Weather Service.
Every event with a place to put it; 1 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Boise, ID wrote its last area forecast discussion before the first event at Mar 6, 10:05 PM MST, 2 hours 55 minutes earlier.
SOUTHWEST IDAHO/SOUTHEAST OREGON AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BOISE IDAHO
1005 PM MST THU MAR 6 2003
NO UPDATES NEEDED. WINTER STORM WARNING REMAINS IN EFFECT FAR NORTH
ABOVE 4500 FEET AS STRONG WINDS ALOFT AND LOCALLY WINDY WESTERLY
SURFACE FLOW IMPINGE ON WEST CENTRAL MOUNTAINS FOR OROGRAPHICALLY
ENHANCED SNOW AND BLOWING AND DRIFTING SNOW. MOIST PLUME SEEN ON
WATERVAPOR SATIMG ACROSS WA-OREGON-WRN ID EXTENDS BACK TO A
SHORTWAVE TROF 40-50N ALONG 130W. THIS MOIST PLUME CRASHES ACROSS
THE CASCADES AND OVER BOISE CWFA NRN MTNS LATER TONIGHT THROUGH
EARLY AFTERNOON FRIDAY. SALEM OREGON SOUNDING SHOWS 0.62 PW WITH
THIS STORM AND WHILE SOME MOISTURE IS LOST TO THE CASCADES THE
ETABUFR SOUNDING FOR BOISE PEAKS CLOSE TO A HALF-INCH FRIDAY MORNING
WITH MYL AT A THIRD INCH. SNOW AMOUNTS FOR THE CENTRAL MTNS SEEM ON
TARGET FOR A LOW END WARNING. BOISE MTN MAY HOLD OFF TIL WIND FLOW
SWITCHES A LITTLE MORE WSW VICE WNW BUT PLAN TO LEAVE WARNING UP
SINCE 3AM-NOON SNOW IN THE BOISE MTNS ALSO SHOULD GET LOW END
WARNING AMTS. WINDS SETTLING DOWN TO LIGHT EXCEPT 5-15 IN SE OREGON
AND 10-20 IN THE MAGIC VLY. TEMPS ON TRACK FOR MINS IN THE MID 20S
TO AROUND 40.
.BOI...WINTER STORM WARNING ABOVE 4500 FEET TONIGHT THROUGH FRIDAY
WEST CENTRAL AND BOISE MOUNTAINS - ID ZNS 11 AND 13.
VMIDZ011>016-028>030-ORZ061>064-071300- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE BOISE IDAHO 600 AM MST THU MAR 06 2003 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHWEST IDAHO AND SOUTHEAST OREGON. .DAY ONE...TODAY A WIND ADVISORY IS POSTED FOR SOUTHERN TWIN FALLS COUNTY AND THE WESTERN MAGIC VALLEY THROUGH THIS AFTERNOON. WINDS WILL BE WESTERLY 30 TO 40 MPH WITH LOCALLY HIGHER GUSTS. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .INSTRUCTIONS TO SPOTTERS... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BOISE ID
938 PM MST THU MAR 6 2003
TIME(MST) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0411 AM 8 SW HILL CITY ID 55 MPH NON TSTM WIND GUST
03/06/03 ELMORE
0525 AM TWIN FALLS AIRPORT ID 45 MPH NON TSTM WIND GUST
03/06/03 TWIN FALLS
1119 AM JEROME AIRPORT ID 43 MPH NON TSTM WIND GUST
03/06/03 JEROME
0430 PM 19 SE TWIN FALLS ID 43 MPH NON TSTM WIND GUST
03/06/03 TWIN FALLS
0455 PM TWIN FALLS AIRPORT ID 44 MPH NON TSTM WIND GUST
03/06/03 TWIN FALLS
0611 PM 8 SW HILL CITY ID 47 MPH NON TSTM WIND GUST
03/06/03 ELMORE
MILLSThe national radar mosaic for the moment the first event began.
1 winter storm. Local standard time, as filed.
A winter strom brought 3 to 10 inches of snow to the central moutnains of Idaho.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Idaho in 2003Every state in 2003This day in weather historyWarnings in Idaho, March 2003
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 5345916.