Winter Storm, Knox
- When
- February 23, 11:00 PM CST to February 24, 11:00 PM CST
- Where
- Knox forecast zone
- Reported by
- OFFICIAL NWS OBS.
- Coordinates
- 42.637, -97.892 (the zone’s center; the record gives no point)
Some of the freezing rain that hit locations to the southeast of these counties moved across parts of the area Friday and Friday night, 2/23/01, although amounts were less. Freezing drizzle or light freezing rain then changed to snow Saturday afternoon 2/24/01.
Every event with a place to put it; 5 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 episode as NWS OAX wrote it up.
Some of the freezing rain that hit locations to the southeast of these counties moved across parts of the area Friday and Friday night, 2/23/01, although amounts were less. Freezing drizzle or light freezing rain then changed to snow Saturday afternoon 2/24/01. Although most snow amounts were only in the 2 to 4 inch range...the snow fell on top of a glaze from the freezing drizzle, and as winds picked up Saturday evening, blowing and drifting snow was observed.
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 Omaha, NE wrote its last area forecast discussion before the first event at Feb 23, 9:55 PM CST, 1 hour 5 minutes earlier.
AREA FORECAST DISCUSSION...UPDATE
NATIONAL WEATHER SERVICE OMAHA NE
955 PM CST FRI FEB 23 2001
IN UPDATE HAVE REMOVED FREEZING RAIN ADVISORY SE NEB WHERE TEMPS
SHOULD STAY AOBVE FREEZING REST OF NIGHT. ALSO ADJUSTED WORDING OF
ICE STORM WARNING FOR PORTIONS OF ERN NEB AND SW IA FOR WARNING
UNTIL AROUND MIDNIGHT AT WHICH TIME EXPECTE MOST TEMPS TO RISE TO
AOA FREEZING MARK. IN OTHER NEAR TERM UPDATE BACKED OFF WARNING TO
ADVISORY IN KNOX..CEDAR...ANTELOPE...PIERCE AND
BOONE COUNTIES WHERE...ALTHOUGH TEMPS SHOULD LIKELY STAY BELOW
FREEZING DURING THE NIGHT...RAIN MORE SCATTERED AND LIGHTER IN
INTENSITY.
WITH WIDESPREAD RAIN LOCALLY HEAVY IN NATURE WITH EMBEDDED TSTMS
CONTIUNING TO SPREAD OUT INTO SE NEB AND SW IA OUT OF KS AND MO
CONCERN ALSO STARTING TO INCREASE FOR RUNOFF AND DEVELOPING FLOODING
PROBLEMS WITH ICE CLOGGED RIVERS. THIS RISK FOR LOCALLY HEAVY RAIN
INDICATED THROUGH NIGHT IN 24/00Z ETA. QUICK LOOK OF MODEL
INDICATES RISK OF SGFNT WINTER WEATHER EVENT ALSO CONTINUES ESPCLY
NW HALF OF FORECAST AREA SAT NIGHT INTO EARLY SUN.
.OMA...ICE STORM WARNING.. TNGT...GENLY N OF A COLUMBUS AND ATLANTIC
AND SOUTH OF A LINE ALBION THROUGH SIOUX CITY.
ICE STORM WARNING...UNTIL ARND MIDNIGHT...GENLY S OF A LINE
FROM COULUMBUS TO ATLANTIC AND NORTH OF A LINE FROM WILBER
TO CLARINDA.
FREEZING RAIN ADVISORY...TONIGHT...NEZ011-012-016-017-030
WINTER STORM WATCH LATE SAT AFTN AND SAT NIGHT FOR
NEZ011-012-016-017-030
WINTER STORM WATCH SAT NIGHT FOR REMAINDER OF ERN NE AND
SW IA.
WIESE
The national radar mosaic for the moment the first event began.
5 winter storm. Local standard time, as filed.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Nebraska in 2001Every state in 2001This day in weather historyWarnings in Nebraska, February 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: 5232080, 5232081, 5232082, 5232083, 5232084.