2 heavy snow, as filed by the National Weather Service.
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 Pocatello, ID wrote its last area forecast discussion before the first event at Sep 5, 7:55 PM MST, 1 hour 5 minutes earlier.
SOUTHEAST IDAHO AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE POCATELLO/IDAHO FALLS ID 855 PM MDT WED SEP 05 2001 STARTING TO FEEL AFFECTS OF STRONG UPPR LOW OVR ERN OR. ASSOCIATED PVA AND RRQ OF 250MB JET STREAK IS SPAWNING SHRA/TSRA OVER SWRN FA AND NRN UT. EXPECT CONVECTIVE ACTIVITY TO CONTINUE AS UPPER DYNAMICS ARE FAVORABLE AND UPPR LOW IS PROGED TO TRACK ACROSS THE MAGIC VALLEY. CONVECTIVE THREAT FOR CWFA WILL END AS UPPR LOW PASSES TO OUR EAST AROUND 12Z. STRATIFORM PRECIP BEGINS AS WRAP AROUND MOISTURE REMAINS OVER FA ON THURSDAY. MSAS...HAND ANALYSIS...KCBX AND KLRX 88D VEL DATA SHOWS FRONT OVER THE MAGIC VALLEY SOUTHWARD INTO NERN NV. STRONG THICKNESS PACKING...CAA AND STRONG ISALLOBARIC GRADIENT WILL PRODUCE NEAR ADVISORY CRITERIA WIND GUSTS. MTRS FROM KTWF AND KJER SHOW STRONG 30 TO 40 KT WIND GUSTS ALONG WITH BLOWING DUST (ISSUED NOW FOR THIS)...WILL ISSUE WIND ADVISORY FOR ZONES 17/20/21. WILL UPDATE ZONES FOR RADAR TRENDS AND ADD WIND GUSTS TO 40 MPH. BRONG BYI 55/68/45/71 5510 .KSFX WSR-88D...OPERATIONAL...VCP 21. PIH RB 053/063 042/068 044 10572 .PIH...WIND ADVISORY FOR IDZ017-020-021.
2 heavy snow. Local standard time, as filed.
A storm system brought a strong cold front through Idaho and brought the first snows of the season to the central mountains. Some of the higher snow amounts were 4 inches at Galena Lodge, 6 inches at Smiley Creek Lodge, and 6 inches in the mountains north of Challis.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Idaho in 2001Every state in 2001This day in weather historyWarnings in Idaho, September 2001
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: 5267494, 5267495.