Time: 852 PM Sun July 21, 2019 Forecaster: Alan Smith

MESSAGE 1
Flash Flood Prediction Program

LOW IMPACT FLOODING
PRIORITY DISSEMINATION RECOMMENDED

We have determined that low impact flooding is likely in Boulder County (City of Boulder not affected, Four Mile Burn Area affected)
including:
------------------------------------------------------------------------------
from: Current to 1000 PM.
Prime time for flooding: Current to 930 PM.
------------------------------------------------------------------------------
Forecast rainfall: Thunderstorms will produce rainfall amounts of 0.4-1.2" in 10-30 minutes.
------------------------------------------------------------------------------
The most likely areas to be impacted by flooding are:

X Mountain streams & floodplains; road crossings; canyon roads & highways; recreational trails; adjacent open space areas/campgrounds/parks; fishing access points & stream reaches; buildings near streams; utilities

X Mountain locations subject to mud/rock/debris slide

------------------------------------------------------------------------------
Additional Information: A strong, slow-moving thunderstorm could produce heavy rainfall of up to 2.8" in 90-120 minutes. Excessive runoff is either imminent or already occurring.

This message is not intended for public dissemination. Please pass this information along to affected emergency response organizations (police, fire, public works, etc.) within your area.

Also, please take appropriate actions to prepare for possible flooding.

Further information will be provided to you as it becomes available.