Time: 955 AM Sat May 25, 2024 Forecaster: Laura Smith

Heavy Precipitation Outlook
Flash Flood Prediction Program

Isolated to Scattered Afternoon and Evening Showers and Thunderstorms
Skies will be partly to mostly sunny this morning as the arrival of an upper-level trough improves atmospheric moisture across the region. Afternoon temperatures will reach the mid to upper 70s, dew points in the mid 30s, and precipitable water (PWAT) vales up to 0.50”. These conditions will support isolated showers and thunderstorms capable of producing light rainfall during the afternoon and evening. Storm motions will be from the west-southwest to east-northeast around 15-20 mph. Skies will gradually clear overnight with dry conditions expected tomorrow morning.
STORM RAINFALL POTENTIAL AND DURATION: Typical showers will produce a trace to 0.05” total in 10-30 minutes. A moderate shower/thunderstorm will produce up to 0.10” in 10-30 minutes.

WORST CASE SCENARIO: A strong thunderstorm, or training of thunderstorms, may be capable of producing up to 0.20” of rainfall in up to 30 minutes.

A LOOK AHEAD: Sunday morning will be sunny with seasonal temperatures prevailing across the District. Gusty downslope conditions will limit storm development across the region, resulting in dry conditions throughout the day and overnight into Monday.

Location Prime Time 30-Minute Rainfall
and % Probability
Message
Potential
Plains      
Adams 200 PM TO 1000 PM
Trace (45%) to 0.05" (35%) to 0.1" (25%) NONE
Arapahoe 200 PM TO 1000 PM
Trace (45%) to 0.05" (35%) to 0.1" (25%) NONE
Boulder 200 PM TO 1000 PM
Trace (45%) to 0.05" (35%) to 0.1" (25%) NONE
Broomfield 200 PM TO 1000 PM
Trace (45%) to 0.05" (35%) to 0.1" (25%) NONE
Denver 200 PM TO 1000 PM
Trace (45%) to 0.05" (35%) to 0.1" (25%) NONE
Douglas 200 PM TO 1000 PM
Trace (45%) to 0.05" (35%) to 0.1" (25%) NONE
Jefferson 200 PM TO 1000 PM
Trace (45%) to 0.05" (35%) to 0.1" (25%) NONE
Foothills above 6500ft      
Boulder 100 PM TO 900 PM
Trace (55%) to 0.05" (45%) to 0.1" (35%) NONE
Douglas 100 PM TO 900 PM
Trace (55%) to 0.05" (45%) to 0.1" (35%) NONE
Jefferson 100 PM TO 900 PM
Trace (55%) to 0.05" (45%) to 0.1" (35%) NONE
MONITOR NATIONAL WEATHER SERVICE FOR SEVERE WEATHER STATEMENTS.
https://f2p2.udfcd.org/generator/