Flash Flood Prediction Program

Time: 1003 AM Mon May 30, 2022 Forecaster: Laura Smith ------------------------- Heavy Precipitation Outlook Flash Flood Prediction Program ------------------------- ISOLATED AFTERNOON SHOWERS AND THUNDERSTORMS FAVORING THE HIGHER TERRAIN - Scattered showers moved across the District earlier this morning, producing sprinkles to 0.05" of precipitation before 9:00 AM but these weak showers have since moved eastward. Additional rain showers and possibly an isolated thunderstorm later today will favor the higher terrain with the I-25 corridor trending on the drier side although an isolated rain shower or thunderstorm cannot be completely ruled out. - An upper level disturbance to the N in WY will produce a slight chance for isolated showers and thunderstorms this afternoon, favoring the west and south areas of the District as down-sloping winds will lower the chances over the plains. Temperatures will trend below seasonal averages with highs in the upper 60's to around 70 over the plains under mostly sunny to partly cloudy skies. - Any shower or weak thunderstorm activity that develops today is expected to end by sundown with skies clearing overnight and generally dry conditions. STORM RAINFALL POTENTIAL AND DURATION: Light rain showers with the occasional rumble of thunder may produce a TR-0.2" of rainfall in 30-60 minutes. A LOOK AHEAD: An upper-level disturbance will create a cool and rainy start to the week ahead of a more typical spring pattern before the weekend. Tomorrow will be mostly to partly sunny with high temperatures in the mid 60's. A mild cool front will sweep across the plains Tuesday afternoon followed by widespread showers. Light rain with the occasional rumble of thunder is expected to persist overnight and into Wednesday. High temperatures are expected to reach the low 60's by Wednesday afternoon followed by a slight chance for thunderstorms through Wednesday evening. A warming trend begins on Thursday with clear sunny skies and high temperatures reaching the mid 70's. LOCATION PRIME TIME 60-Minute Rainfall and % Probability Message Potential Plains       Adams Current TO 900 PM MON Trace (30%) to 0.1" (15%) to 0.2" (5%) NONE Arapahoe Current TO 900 PM MON Trace (30%) to 0.1" (15%) to 0.2" (5%) NONE Boulder Current TO 900 PM MON Trace (40%) to 0.1" (20%) to 0.2" (10%) NONE Broomfield Current TO 900 PM MON Trace (30%) to 0.1" (15%) to 0.2" (5%) NONE Denver Current TO 900 PM MON Trace (30%) to 0.1" (15%) to 0.2" (5%) NONE Douglas Current TO 900 PM MON Trace (40%) to 0.1" (20%) to 0.2" (10%) NONE Jefferson Current TO 900 PM MON Trace (40%) to 0.1" (20%) to 0.2" (10%) NONE Foothills above 6500ft       Boulder Current TO 900 PM MON Trace (60%) to 0.1" (30%) to 0.2" (15%) NONE Douglas Current TO 900 PM MON Trace (60%) to 0.1" (30%) to 0.2" (15%) NONE Jefferson Current TO 900 PM MON Trace (60%) to 0.1" (30%) to 0.2" (15%) NONE MONITOR NATIONAL WEATHER SERVICE FOR SEVERE WEATHER STATEMENTS. MHFD Flood Prediction Center: 303-458-0789    F2P2 Website [http://udfcd.org/Flash+Flood+Prediction+Program]