Indiana District 1 Skywarn

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Indiana District 1 Skywarn [WX9NWI] assists the US National Weather Service (NWS) during times of severe weather and emergency situations in the Northwestern Indiana counties of Lake, Porter, La Porte, Jasper, Newton, and expanded coverage to Benton Co.

09/04/2026

NWS:

Heat Advisory
Heat Advisory issued September 3 at 7:56PM CDT until September 4 at 7:00PM CDT by NWS Chicago IL
* WHAT...Heat index values 100 to 105 expected.

* WHERE...In Illinois, Livingston, Ford, Iroquois, La Salle, Grundy,
and Kankakee Counties. In Indiana, Benton, Jasper, and Newton
Counties.

* WHEN...Until 7 PM CDT /8 PM EDT/ Friday.

* IMPACTS...Hot temperatures and high humidity may cause heat
illnesses especially after several days of dangerous heat.
Consider altering outdoor plans. If outdoors for prolonged periods of
time, wear lightweight and loose fitting clothing. Take action when
you see symptoms of heat exhaustion and heat stroke.
http://www.weather.gov

09/03/2026

NWS:

Heat Advisory
Heat Advisory issued September 3 at 1:41AM EDT until September 3 at 8:00PM EDT by NWS Northern Indiana
* WHAT...Afternoon heat index values around 100 degrees expected.

* WHERE...Portions of northern Indiana, southwest Michigan, and
northwest Ohio.

* WHEN...Until 8 PM EDT /7 PM CDT/ this evening.

* IMPACTS...Hot temperatures and high humidity may cause heat
illnesses.
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.

Take extra precautions when outside. Wear lightweight and loose
fitting clothing. Try to limit strenuous activities to early morning
or evening. Take action when you see symptoms of heat exhaustion and
heat stroke.
http://www.weather.gov

08/31/2026

NWS:

Heat Advisory
Heat Advisory issued August 31 at 12:24PM CDT until September 1 at 9:00PM CDT by NWS Chicago IL
* WHAT...Peak heat indices of 100 to 105 degrees expected Tuesday and
Wednesday afternoons.

* WHERE...Portions of northern and central Illinois near and south of
I-80, as well as all of northwest Indiana.

* WHEN...For the first Heat Advisory, from noon CDT to 9 PM CDT
Tuesday. For the second Heat Advisory, from noon CDT to 9 PM CDT
Wednesday.

* IMPACTS...Hot temperatures and high humidity may cause heat
illnesses.
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.
http://www.weather.gov

08/31/2026

NWS:

Heat Advisory
Heat Advisory issued August 31 at 12:24PM CDT until September 2 at 9:00PM CDT by NWS Chicago IL
* WHAT...Peak heat indices of 100 to 105 degrees expected Tuesday and
Wednesday afternoons.

* WHERE...Portions of northern and central Illinois near and south of
I-80, as well as all of northwest Indiana.

* WHEN...For the first Heat Advisory, from noon CDT to 9 PM CDT
Tuesday. For the second Heat Advisory, from noon CDT to 9 PM CDT
Wednesday.

* IMPACTS...Hot temperatures and high humidity may cause heat
illnesses.
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.
http://www.weather.gov

08/31/2026

NWS:

Heat Advisory
Heat Advisory issued August 31 at 1:00PM EDT until September 2 at 8:00PM EDT by NWS Northern Indiana
* WHAT...Heat index values 100 to 104 expected. Overnight heat
indices in the middle 70s.

* WHERE...Portions of northern Indiana and northwest Ohio.

* WHEN...From 2 PM EDT /1 PM CDT/ Tuesday to 8 PM EDT /7 PM CDT/
Wednesday.

* IMPACTS...Hot temperatures and high humidity may cause heat
illnesses.

* ADDITIONAL DETAILS...A period of dangerous heat and humidity is in
store through at least Wednesday evening, with minimal relief
Tuesday night. Chances for showers and thunderstorms should remain
north of the advisory area.
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.
http://www.weather.gov

08/21/2026

NWS:

Beach Hazards Statement
Beach Hazards Statement issued August 21 at 3:11PM CDT until August 23 at 10:00PM CDT by NWS Chicago IL
* WHAT...High wave action and dangerous currents expected at Lake
Michigan beaches. Waves 3 to 6 feet expected.

* WHERE...Porter County.

* WHEN...From Saturday morning through Sunday evening.

* IMPACTS...Swimming conditions will be life threatening,
especially for inexperienced swimmers.
Remain out of the water to avoid dangerous swimming conditions
and do not venture out onto piers, jetties, breakwalls, or other
shoreline structures.
http://www.weather.gov

08/21/2026

NWS:

Severe Thunderstorm Watch
Severe Thunderstorm Watch issued August 21 at 2:58PM CDT until August 21 at 10:00PM CDT by NWS Chicago IL
THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH
610 IN EFFECT UNTIL 10 PM CDT THIS EVENING FOR THE FOLLOWING
AREAS

IN ILLINOIS THIS WATCH INCLUDES 18 COUNTIES

IN CENTRAL ILLINOIS

LIVINGSTON

IN EAST CENTRAL ILLINOIS

FORD IROQUOIS

IN NORTH CENTRAL ILLINOIS

BOONE DE KALB LA SALLE
LEE OGLE WINNEBAGO

IN NORTHEAST ILLINOIS

COOK DUPAGE GRUNDY
KANE KANKAKEE KENDALL
LAKE IL MCHENRY WILL

IN INDIANA THIS WATCH INCLUDES 2 COUNTIES

IN NORTHWEST INDIANA

LAKE IN NEWTON

THIS INCLUDES THE CITIES OF ALGONQUIN, AURORA, BELVIDERE,
BOLINGBROOK, BOURBONNAIS, BUFFALO GROVE, BYRON, CAROL STREAM,
CHICAGO, COAL CITY, CRYSTAL LAKE, DEKALB, DIXON, DOWNERS GROVE,
DWIGHT, ELGIN, EVANSTON, FAIRBURY, GARY, GIBSON CITY, GILMAN,
GURNEE, HAMMOND, JOLIET, KANKAKEE, KENTLAND, LA SALLE, LEMONT,
LOMBARD, MARSEILLES, MCHENRY, MENDOTA, MERRILLVILLE, MINOOKA,
MOROCCO, MORRIS, MUNDELEIN, NAPERVILLE, OAK LAWN, OREGON,
ORLAND PARK, OSWEGO, OTTAWA, PARK FOREST, PAXTON, PLANO, PONTIAC,
ROCHELLE, ROCKFORD, ROSELAWN, SCHAUMBURG, STREATOR, SYCAMORE,
WATSEKA, WAUKEGAN, WHEATON, WILMINGTON, WOODSTOCK, AND YORKVILLE.
null
http://www.weather.gov

08/21/2026

NWS:

Beach Hazards Statement
Beach Hazards Statement issued August 21 at 2:23PM EDT until August 23 at 11:00PM EDT by NWS Northern Indiana
* WHAT...Dangerous swimming conditions expected. Waves 3 to 5
feet. Strong rip and structural currents expected.

* WHERE...In Indiana, Northern La Porte county. In Michigan,
Northern Berrien and Southern Berrien counties.

* WHEN...From Saturday morning through Sunday evening.

* IMPACTS...Strong currents can pull swimmers into deeper water
and high waves can sweep people off piers.
Remain out of the water to avoid hazardous swimming conditions.
Do not venture out on piers.
http://www.weather.gov

08/15/2026

NWS:

Flood Watch
Flood Watch issued August 15 at 6:39PM CDT until August 16 at 10:00AM CDT by NWS Chicago IL
* WHAT...Flooding caused by excessive rainfall is possible.

* WHERE...Portions of Illinois, including the following areas,
Eastern Will, Ford, Grundy, Iroquois, Kankakee, La Salle,
Livingston and Southern Will and northwest Indiana, including the
following areas, Benton, Jasper, Lake IN, Newton and Porter.

* WHEN...From midnight CDT /1 AM EDT/ tonight through Sunday
morning.

* IMPACTS...Roads and streets may be flooded. Area creeks and streams
are already elevated, increasing the risk of flooding due to
additional rainfall.

* ADDITIONAL DETAILS...
- Scattered showers and thunderstorms are expected to develop and
move across northern and central Illinois and northwest Indiana
tonight. Torrential rainfall will be possible with these showers
and thunderstorms. With the already elevated soil moisture and
the high vulnerability in the watch area from heavy rain the past
two nights, additional flash flooding and sharp river rises are
possible.
- http://www.weather.gov/safety/flood
A Flood Watch means flooding is possible, but not yet certain, based
upon the latest forecasts. Persons with interests along area rivers,
creeks, and other waterways should monitor the latest forecasts and
be prepared to take action should flooding develop.

Monitor the latest forecasts and be prepared to action should
flooding develop and make sure you have multiple ways to receive
warnings tonight, including ways that will wake you up.
http://www.weather.gov

08/14/2026

NWS:

Flood Watch
Flood Watch issued August 14 at 12:01PM CDT until August 15 at 10:00AM CDT by NWS Chicago IL
* WHAT...Flash flooding caused by excessive rainfall is possible.

* WHERE...Portions of Illinois, including Ford, Grundy, Iroquois,
Kankakee, LaSalle, Livingston, and eastern and southern Will
Counties. Portions of northwestern Indiana, including Lake, Porter,
Newton, Jasper, and Benton counties.

* WHEN...From 10 PM CDT /11 PM EDT/ this evening through Saturday
morning.

* IMPACTS...Widespread flooding of low-lying including ditches and
farm fields may occur. Widespread roadway flooding may occur. Area
creeks and rivers may rapidly rise out of their banks. Some
structures may flood. Some of the flooding may significant and
locally life threatening.

* ADDITIONAL DETAILS...
- Repeated rounds of torrential rainfall producing thunderstorms in
the past week have lead to widespread saturated soils and
standing water in low-lying areas. Another round of torrential
rainfall producing thunderstorms are expected tonight which may
lead to widespread flash flooding.
- http://www.weather.gov/safety/flood
Monitor the latest forecasts. Have multiple ways to receive warning
information including at least one way that will wake you up.
http://www.weather.gov

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Valparaiso, IN
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