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FLOOD WARNING
FLOOD WARNING ISSUED APRIL 17 AT 10:38PM CDT
Effective: 2026-04-17 22:38:00 Local Time Expires: 2026-04-18 22:45:00 Local Time Issued by: NWS Quad Cities IA IL
Alert Text
...FORECAST FLOODING CHANGED FROM MINOR TO MODERATE SEVERITY ANDINCREASED IN DURATION FOR THE FOLLOWING RIVERS IN ILLINOIS...IOWA...

MISSISSIPPI RIVER AT MUSCATINE AFFECTING ROCK ISLAND, LOUISA, MERCER AND MUSCATINE COUNTIES.

MISSISSIPPI RIVER AT ILL. CITY LD16 AFFECTING ROCK ISLAND AND MUSCATINE COUNTIES.

* WHAT...MODERATE FLOODING IS FORECAST.

* WHERE...MISSISSIPPI RIVER AT MUSCATINE.

* WHEN...FROM SUNDAY MORNING UNTIL FURTHER NOTICE.

* IMPACTS...AT 18.0 FEET, WATER AFFECTS MOST OF THE RIVERSIDE PARK PARKING LOT.

* ADDITIONAL DETAILS... - AT 9:15 PM CDT FRIDAY THE STAGE WAS 15.1 FEET. - FORECAST...THE RIVER IS EXPECTED TO RISE ABOVE FLOOD STAGE SUNDAY MORNING AND CONTINUE RISING TO 18.0 FEET FRIDAY, APRIL 24. ADDITIONAL RISES ARE POSSIBLE THEREAFTER. - FLOOD STAGE IS 16.0 FEET.
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Target Area
LOUISA, IA, MUSCATINE, IA, MERCER, IL, ROCK ISLAND, IL
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Storm Reports

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Hazardous Weather Conditions

No active alerts for CHEVY CHASE, MARYLAND

Current Conditions: CHEVY CHASE, MARYLAND

LEESBURG/GODFREY (KJYO)

Clear

55.4 F
Humidity:94%
Wind Speed: 0.0 mph
Barometer:30.00 in
Dewpoint:53.6 F
Visibility:10.00 mi
Precip:--
Heat Index:NA
Wind Chill:NA
Apr 18 2026, 04:15 AM EDT
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5 Day Forecast for CHEVY CHASE, MARYLAND (20815)

Saturday

High 84 °F
Partly Sunny
Saturday
Night
Low 53 °F
Rain
Sunday

High 60 °F
Rain Showers Likely
Sunday
Night
Low 41 °F
Showers Likely
Monday

High 55 °F
Partly Sunny
Monday
Night
Low 37 °F
Mostly Clear
Tuesday

High 64 °F
Mostly Sunny
Tuesday
Night
Low 51 °F
Partly Cloudy
Wednesday

High 77 °F
Isolated T-storm

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)
04:15 AM EDT 0.0 10.00 Clear -- 55.4 53.6 94% NA NA 30.00 1015.9
03:55 AM EDT 0.0 10.00 Clear -- 55.4 53.6 94% NA NA 30.00 1015.9
03:35 AM EDT 0.0 10.00 Clear -- 55.4 53.6 94% NA NA 30.00 1015.9
03:15 AM EDT 0.0 10.00 Clear -- 55.4 53.6 94% NA NA 30.00 1015.9
02:55 AM EDT 0.0 10.00 Clear -- 57.2 53.6 88% NA NA 30.00 1015.9
02:35 AM EDT 0.0 10.00 Clear -- 57.2 53.6 88% NA NA 30.01 1016.3
02:15 AM EDT 0.0 10.00 Clear -- 59.0 53.6 82% NA NA 30.01 1016.3
01:55 AM EDT 0.0 10.00 Clear -- 59.0 53.6 82% NA NA 30.02 1016.6
01:35 AM EDT 0.0 10.00 Clear -- 59.0 55.4 88% NA NA 30.02 1016.6
01:15 AM EDT 0.0 10.00 Clear -- 57.2 53.6 88% NA NA 30.01 1016.3
12:55 AM EDT 0.0 10.00 Clear -- 59.0 55.4 88% NA NA 30.00 1015.9
12:35 AM EDT 0.0 10.00 Clear -- 59.0 55.4 88% NA NA 30.00 1015.9
12:15 AM EDT 0.0 10.00 NULL -- 60.8 55.4 82% NA NA 30.00 1015.9
11:55 PM EDT 0.0 10.00 Clear -- 60.8 55.4 82% NA NA 29.99 1015.6
11:35 PM EDT 0.0 10.00 Clear -- 62.6 55.4 77% NA NA 29.98 1015.2
11:15 PM EDT 0.0 10.00 Clear -- 64.4 55.4 73% NA NA 29.99 1015.6
10:55 PM EDT 3.4 10.00 Clear -- 64.4 55.4 73% NA NA 29.99 1015.6
10:35 PM EDT 0.0 10.00 Clear -- 62.6 55.4 77% NA NA 29.98 1015.2
10:15 PM EDT 0.0 10.00 Clear -- 62.6 55.4 77% NA NA 29.98 1015.2
09:55 PM EDT 0.0 10.00 Clear -- 66.2 55.4 68% NA NA 29.97 1014.9
09:35 PM EDT 0.0 10.00 Clear -- 64.4 55.4 73% NA NA 29.97 1014.9
09:15 PM EDT 0.0 10.00 NULL -- 68.0 55.4 64% NA NA 29.97 1014.9
08:55 PM EDT 0.0 10.00 Clear -- 71.6 53.6 53% NA 70.9 29.97 1014.9
08:35 PM EDT NE 3.4 10.00 Clear -- 71.6 55.4 57% NA 71.1 29.96 1014.6

Regional Weather Observation

LEESBURG/GODFREY (KJYO)

Clear
55.4 F

FREDERICK (KFDK)

Clear
52.0 F

CARROLL CNTY (KDMW)

Clear
62.6 F

NSF THURMONT (KRSP)

Clear
62.1 F

WASH DC/DULLES (KIAD)

Clear
53.6 F

WASHINGTON/NATL (KDCA)

Clear
62.6 F
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