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FLOOD WARNING
FLOOD WARNING ISSUED APRIL 21 AT 4:53AM CDT UNTIL APRIL 22 AT 10:00PM CDT
Effective: 2026-04-21 04:53:00 Local Time Expires: 2026-04-22 22:00:00 Local Time Issued by: NWS Milwaukee/Sullivan WI
Alert Text
...THE FLOOD WARNING CONTINUES FOR THE FOLLOWING RIVERS INWISCONSIN...ILLINOIS...

ROCK RIVER AT NEWVILLE AFFECTING ROCK COUNTY.

ROCK RIVER NEAR LAKE KOSHKONONG AFFECTING JEFFERSON AND ROCK COUNTIES.

ROCK RIVER AT FORT ATKINSON AFFECTING JEFFERSON COUNTY.

ROCK RIVER AT AFTON AFFECTING WINNEBAGO AND ROCK COUNTIES.

ROCK RIVER AT JEFFERSON AFFECTING JEFFERSON COUNTY.

ROCK RIVER AT WATERTOWN AFFECTING JEFFERSON COUNTY.

ROCK RIVER NEAR LEBANON-3 E-HWY MM BRIDGE AFFECTING DODGE COUNTY.

FOX RIVER AT PRINCETON AFFECTING GREEN LAKE COUNTY.

FOX RIVER NEAR BERLIN AFFECTING GREEN LAKE COUNTY.

CRAWFISH RIVER AT MILFORD AFFECTING JEFFERSON COUNTY.

FOX RIVER LOWER AT ROCHESTER AFFECTING RACINE COUNTY.

FOX RIVER LOWER AT WAUKESHA AFFECTING WAUKESHA COUNTY.

FOX RIVER LOWER NEAR NEW MUNSTER AFFECTING KENOSHA AND LAKE COUNTIES.

WISCONSIN RIVER AT PORTAGE AFFECTING COLUMBIA COUNTY.

...THE FLOOD WARNING IS CANCELLED FOR THE FOLLOWING RIVERS IN ILLINOIS...WISCONSIN...

SUGAR RIVER AT BRODHEAD AFFECTING ROCK, WINNEBAGO AND GREEN COUNTIES.

* WHAT...MODERATE FLOODING IS OCCURRING AND MODERATE FLOODING IS FORECAST. THIS APPROACHES THE FLOOD OF RECORD.

* WHERE...WISCONSIN RIVER AT PORTAGE.

* WHEN...UNTIL LATE TOMORROW EVENING.

* IMPACTS...AT 18.5 FEET, FLOODWATERS AFFECT RIVER SHORES ROAD ABOUT 3 MILES UPSTREAM OF PORTAGE IN THE TOWN OF LEWISTON AND RIVER OAKS ROAD ABOUT 7 MILES DOWNSTREAM OF PORTAGE IN THE TOWN OF DEKORRA IN COLUMBIA COUNTY. WATER OVER LEVEE RD AND TRITZ RD. THERE IS WIDESPREAD FLOODING OF ROADS IN THE BLACKHAWK PARK AREA INCLUDING WEST LAKE ROAD...BLACKHAWK ROAD AND WOOD STREET. THE BLACKHAWK PARK AREA IS ON THE SOUTH SIDE OF THE RIVER ABOUT 3 MILES SOUTH OF PORTAGE.

* ADDITIONAL DETAILS... - AT 7:00 AM CDT MONDAY THE STAGE WAS 18.7 FEET. - BANKFULL STAGE IS 12.7 FEET. - RECENT ACTIVITY...THE MAXIMUM RIVER STAGE IN THE 24 HOURS ENDING AT 7:00 AM CDT MONDAY WAS 18.7 FEET. - FORECAST...THE RIVER IS EXPECTED TO FALL BELOW FLOOD STAGE TOMORROW AFTERNOON AND CONTINUE FALLING TO 15.1 FEET MONDAY EVENING. - FLOOD STAGE IS 17.0 FEET. - FLOOD HISTORY...THIS CREST COMPARES TO A PREVIOUS CREST OF 18.9 FEET ON 03 17 2019. - HTTP: WWW.WEATHER.GOV SAFETY FLOOD
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Target Area
COLUMBIA, WI
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Hazardous Weather Conditions

No active alerts for CHEVY CHASE, MARYLAND

Current Conditions: CHEVY CHASE, MARYLAND

LEESBURG/GODFREY (KJYO)

Cloudy

73.4 F
Humidity:47%
Wind Speed: 9.2 mph
Barometer:29.94 in
Dewpoint:51.8 F
Visibility:10.00 mi
Precip:--
Heat Index:72.7 F
Wind Chill:NA
Apr 22 2026, 03:55 PM EDT
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5 Day Forecast for CHEVY CHASE, MARYLAND (20815)

Wednesday

High 75 °F
Scattered T-storms Likely
Wednesday
Night
Low 55 °F
Partly Cloudy
Thursday

High 80 °F
Mostly Sunny
Thursday
Night
Low 59 °F
Partly Cloudy
Friday

High 80 °F
Chance of T-storms
Friday
Night
Low 55 °F
Chance of Rain
Saturday

High 62 °F
T-storms
Saturday
Night
Low 48 °F
Rain
Sunday

High 64 °F
Rain Showers Likely

Observation History for CHEVY CHASE, MARYLAND


Time Wind
(mph)		 Vis
(mi)		 Weather Precip (in) Temperature (F) Relative
Humidity		 Wind
Chill
(F)		 Heat
Index
(F)		 Pressure
Air Dwpt altimeter
(in)		 sea level
(mb)
03:55 PM EDT 9.2 10.00 Cloudy -- 73.4 51.8 47% NA 72.7 29.94 1013.6
03:35 PM EDT 6.9 10.00 NULL -- 73.4 51.8 47% NA 72.7 29.94 1013.9
03:15 PM EDT S 8.1 10.00 Partly Cloudy -- 77.0 51.8 41% NA 76.3 29.95 1014.2
02:55 PM EDT S 8.1 10.00 Clear -- 75.2 53.6 47% NA 74.7 29.96 1014.6
02:35 PM EDT 8.1 10.00 Clear -- 73.4 51.8 47% NA 72.7 29.97 1014.9
02:15 PM EDT S 8.1 10.00 Clear -- 71.6 51.8 50% NA 70.9 29.98 1015.2
01:55 PM EDT 6.9 10.00 Clear -- 69.8 50.0 49% NA NA 30.00 1015.9
01:35 PM EDT S 5.8 10.00 Clear -- 68.0 48.2 49% NA NA 30.01 1016.3
01:15 PM EDT 3.4 10.00 Clear -- 66.2 46.4 49% NA NA 30.01 1016.3
12:35 PM EDT 3.4 10.00 Partly Cloudy -- 62.6 46.4 55% NA NA 30.03 1016.9
12:15 PM EDT S 4.7 10.00 Partly Cloudy -- 62.6 46.4 55% NA NA 30.04 1017.3
11:55 AM EDT 4.7 10.00 Partly Cloudy -- NULL 46.4 % NA NA 30.04 1017.3
11:35 AM EDT 3.4 10.00 Partly Cloudy -- 59.0 46.4 63% NA NA 30.05 1017.6
11:15 AM EDT SE 4.7 10.00 Cloudy -- 55.4 46.4 72% NA NA 30.05 1017.6
10:35 AM EDT 0.0 10.00 Cloudy -- 55.4 42.8 62% NA NA 30.06 1018.0
10:15 AM EDT 0.0 10.00 Cloudy -- 53.6 42.8 67% NA NA 30.06 1018.0
09:55 AM EDT 0.0 10.00 Cloudy -- 53.6 42.8 67% NA NA 30.05 1017.6
09:35 AM EDT SW 3.4 10.00 Cloudy -- 53.6 42.8 67% NA NA 30.06 1018.0
09:15 AM EDT SW 3.4 10.00 Partly Cloudy -- 53.6 41.0 62% NA NA 30.06 1018.0
08:55 AM EDT 4.7 10.00 Mostly Cloudy -- 51.8 41.0 67% NA NA 30.05 1017.6
08:35 AM EDT 0.0 10.00 Mostly Cloudy -- 51.8 41.0 67% NA NA 30.06 1018.0
08:15 AM EDT 0.0 10.00 Mostly Cloudy -- 50.0 41.0 71% NA NA 30.06 1018.0
07:55 AM EDT 0.0 10.00 Partly Cloudy -- 50.0 39.2 66% NA NA 30.05 1017.6
07:35 AM EDT 0.0 10.00 Clear -- 50.0 37.4 62% NA NA 30.05 1017.6

Regional Weather Observation

LEESBURG/GODFREY (KJYO)

Cloudy
73.4 F

FREDERICK (KFDK)

Clear
68.0 F

CARROLL CNTY (KDMW)

NULL
75.2 F

NSF THURMONT (KRSP)

Clear
68.0 F

WASH DC/DULLES (KIAD)

Mostly Cloudy
75.2 F

WASHINGTON/NATL (KDCA)

Clear
73.4 F
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