Illinois Storm Chasers

| March 15, 2026

Sunday-Monday, March 15-16th – Winter Storm – Update #3

(11:45AM – Sunday, March 15th, 2026) Winter storm set to bring near accumulating snow to portions of the state from this evening through Monday…⚠️Update…•With this forecast cycle, we have slightly expanded snowfall accumulation ranges across the northern half state. This change was made based on con

Illinois Storm Chasers

| March 15, 2026

Sunday-Monday, March 15-16th – High Wind Event – Update #3

(11:15AM – Sunday, March 15th, 2026) High winds expected across the state thru Monday afternoon…⚠️Update…•With this forecast cycle, little to no changes were needed, as the going forecast is on track.⏰Timing…•Sunday Morning – Monday Afternoon, March 15-16th.📍Location…•All of Illinois.💨Hazard…•Peak h

Illinois Storm Chasers

| March 15, 2026

Sunday, March 15th – Severe T’Storm Event – Update #4

(10:45AM – Sunday, March 15th, 2026) Severe t’storm threat thru early tonight…⚠️Update…•With this forecast cycle, minor threat placement changes were made, based on real-time observations and trends within weather guidance.⏰Timing…•Sunday Morning – Sunday Night, March 15th.📍Location…•Much of Illinoi

Illinois Storm Chasers

| March 15, 2026

Sunday-Monday, March 15-16th – Snow Event – Update #2

(11:45PM – Saturday, March 14th, 2026) Accumulating snow possible across portions of the state Sunday/Monday…⚠️Update…•With this forecast cycle, we have slightly expanded snowfall accumulation ranges across the state. This change was made based on consistent trends within weather guidance.⏰Timing…•S

Illinois Storm Chasers

| March 15, 2026

Sunday-Monday, March 15-16th – High Wind Event – Update #2

(11:15PM – Saturday, March 14th, 2026) High winds to impact the state from Sunday morning through Monday afternoon…⚠️Update…•With this forecast cycle, little to no changes were needed, as the going forecast is on track.⏰Timing…•Sunday Morning – Monday Afternoon, March 15-16th.📍Location…•All of Illin

Illinois Storm Chasers

| March 15, 2026

Sunday, March 15th – Severe T’Storm Event – Update #3

(10:45PM – Saturday, March 14th, 2026) Severe t’storm threat expected across the state on Sunday…⚠️Update…•With this forecast cycle, little to no changes were needed, as the going forecast is on track.⏰Timing…•Sunday Morning – Sunday Night, March 15th.📍Location…•Much of Illinois.⚡️Hazards…•A level 1

Illinois Storm Chasers

| March 14, 2026

Sunday-Monday, March 15-16th – Snow Event

(12:30PM – Saturday, March 14th, 2026) Winter storm to bring accumulating snow to portions of the state late weekend/early this upcoming week…⏰Timing…•Sunday Evening – Monday Afternoon, March 15-16th.📍Location…•Northern & Central Illinois.❄️Hazards…•Widespread light snowfall accumulation of a dustin

Illinois Storm Chasers

| March 14, 2026

Sunday-Monday, March 15-16th – High Wind Event

(11:15AM – Saturday, March 14th, 2026) Two periods of high winds likely from Sunday morning through Monday midday…⏰Timing…•Sunday Morning – Monday Midday, March 15-16th.📍Location…•All of Illinois.💨Hazard…•Peak high wind gusts of 40-60MPH will be likely across the state in two overlapping waves betwe

Illinois Storm Chasers

| March 14, 2026

Sunday, March 15th – Severe T’Storm Event – Update #2

(10:15AM – Saturday, March 14th, 2026) State-wide severe t’storm threat on Sunday…⚠️Update…•With this update, we have expanded level 2 severe t’storm probabilities and have upgraded portions of the state to level 3 severe t’storm probabilities. These changes were made based on increasing confidence

Illinois Storm Chasers

| March 14, 2026

Sunday, March 15th – Severe T’Storm Episode

(11:30PM – Friday, March 13th, 2026) Severe t’storm threat returns on Sunday…⏰Timing…•Sunday Morning – Sunday Night, March 15th.📍Location…•Much of Illinois.⚡️Hazards…•A level 1 severe t’storm threat is in place across much of the state from Sunday morning through Sunday night, for the threat of isol

Illinois Storm Chasers

| March 13, 2026

Thursday-Friday, March 12-13th – High Wind Event – Update #4

(9:30PM – Thursday, March 12th, 2026) High Winds – potentially damaging – expected from tonight thru Friday afternoon…⏰Timing…•Tonight – Friday Afternoon, March 12-13th.📍Location…•Much of Illinois.💨Hazard…•Peak synoptic high wind gusts of 40-60MPH will be likely across a large portion of the state f

Illinois Storm Chasers

| March 12, 2026

Thursday-Friday, March 12-13th – High Wind Event – Update #3

(11:30AM – Thursday, March 12th, 2026) A period of high winds, potentially damaging, likely from this evening thru Friday afternoon…⏰Timing…•Thursday Evening – Friday Afternoon, March 12-13th.📍Location…•Much of Illinois.💨Hazard…•Peak synoptic high wind gusts of 40-60MPH will be likely across a large

Illinois Storm Chasers

| March 12, 2026

Thursday-Friday, March 12-13th – High Wind Event – Update #2

(11:30PM – Wednesday, March 11th, 2026) High wind expected from Thursday evening through Friday afternoon…⏰Timing…•Thursday Evening – Friday Afternoon, March 12-13th.📍Location…•Northern & Central Illinois.💨Hazard…•Peak high wind gusts of 40-60MPH will be likely across Northern and Central Illinois f

Illinois Storm Chasers

| March 11, 2026

Thursday-Friday, March 12-13th – High Wind Event

(12:45PM – Wednesday, March 11th, 2026) A period of high winds likely from Thursday evening through Friday afternoon…⏰Timing…•Thursday Evening – Friday Afternoon, March 12-13th.📍Location…•Northern & Central Illinois.💨Hazard…•Peak high wind gusts of 40-55MPH will be likely across Northern and Central

Illinois Storm Chasers

| March 11, 2026

Tuesday-Wednesday, March 10-11th – Severe T’Storm Event – Update #6

(11:30AM – Wednesday, March 11th, 2026) Severe t’storm threat continues through later this afternoon… #ILwx⚠️Update…•With this update, we have adjusted the forecast for the remainder of today to account for trends and real time observations.⏰📍Timing & Location…•Thru This Afternoon, March 11th: South

Illinois Storm Chasers

| March 11, 2026

Tuesday-Wednesday, March 10-11th – Severe T’Storm Event – Update #5

(11:30PM – Tuesday, March 10th, 2026) Severe t’storm threat continues into Wednesday…⚠️Update…•With this update, we have adjusted the forecast for the remainder of tonight and into early Wednesday morning, to account for trends and real time observations. For Wednesday’s forecast, we have adjusted s

Illinois Storm Chasers

| March 10, 2026

Tuesday-Wednesday, March 10-11th – Severe T’Storm Event – Update #4

(11:45AM – Tuesday, March 10th, 2026) Significant severe weather event expected today/tonight…⚠️Update…•With this update, we have increased severe t’storm probabilities to a level 4 within a corridor along/south of I-80. Confidence has grown that severe t’storm coverage will reach the threshold of “

Illinois Storm Chasers

| March 10, 2026

Tuesday-Wednesday, March 10-11th – Severe T’Storm Event – Update #3

(11:45PM – Monday, March 9th, 2026) Severe t’storm threat expected across the state from Tuesday afternoon through Wednesday midday…⚠️Update…•With this update, we have slightly adjusted positioning of severe t’storm probabilities portions of Northern and Central Illinois. This change was made on the

Illinois Storm Chasers

| March 9, 2026

Tuesday-Wednesday, March 10-11th – Severe T’Storm Episode – Update #2

(11:45AM – Monday, March 9th, 2026) Severe t’storm threat likely from Tuesday into Wednesday…⚠️Update…•With this update, little in the way of changes were needed to the going forecast.⏰Timing…•Tuesday Afternoon – Wednesday Morning, March 10-11th.📍Location…•Much of Illinois.⚡️Hazards…•A level 1 to 3

Illinois Storm Chasers

| March 9, 2026

Tuesday-Wednesday, March 10-11th – Severe T’Storm Episode

(11:45PM – Sunday, March 8th, 2026) Severe t’storm threat expected from Tuesday into Wednesday…⏰Timing…•Tuesday Afternoon – Wednesday Morning, March 10-11th.📍Location…•Much of Illinois.⚡️Hazards…•A level 1 to 3 severe t’storm threat is in place across much of the state from Tuesday afternoon through

Illinois Storm Chasers

| March 7, 2026

Friday-Saturday, March 6-7th – Severe T’Storm Episode – Update #4

(9:00PM – Friday, March 6th, 2026) Continued severe t’storm threat into the morning…⚠️Update…•With this update, no changes were needed to the going forecast with this update cycle.⏰Timing…•Tonight – Saturday Morning, March 6-7th.📍Location…•All of Illinois.⚡️Hazards…•A level 1 severe t’storm threat i

Illinois Storm Chasers

| March 6, 2026

Friday-Saturday, March 6-7th – Severe T’Storm Episode – Update #3

(11:00AM – Friday, March 6th, 2026) Severe t’storm threat thru Saturday morning…⚠️Update…•With this update, no changes were needed to the going forecast with this update cycle.⏰Timing…•Midday Today – Saturday Morning, March 6-7th.📍Location…•All of Illinois.⚡️Hazards…•A level 1 severe t’storm threat

Illinois Storm Chasers

| March 6, 2026

Friday-Saturday, March 6-7th – Severe T’Storm Episode – Update #2

(9:00PM – Thursday, March 5th, 2026) Severe t’storm threat Friday morning thru Saturday morning… #ILwx⚠️Update…•With this update, no changes were needed to the going forecast with this update cycle.⏰Timing…•Friday Morning – Saturday Morning, March 6-7th.📍Location…•All of Illinois.⚡️Hazards…•A level

Illinois Storm Chasers

| March 5, 2026

Friday-Saturday, March 6-7th – Severe T’Storm Episode

(11:45AM – Thursday, March 5th, 2026) Severe t’storm threat returns Friday into Saturday…⏰Timing…•Friday Morning – Saturday Morning, March 6-7th.📍Location…•All of Illinois.⚡️Hazards…•A level 1 severe t’storm threat is in place across the entirety of from Friday morning through Saturday morning, for