Flash Flood Warning 80, NWS Grand Junction, CO

Issued

Aug 19, 2021, 6:40 AM MDT (12:40 UTC)

Expired

Aug 19, 2021, 8:06 AM MDT

In force

86 min

Issued by

NWS Grand Junction, CO

Area

Storm-based polygon

Flood severity

None

Counties Garfield County, CO, Mesa County, CO

The Grand Junction radar (KGJX), 48 km from the middle of the area, began a volume at 12:41 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

064 
WGUS55 KGJT 191240
FFWGJT
COC045-077-191530-
/O.NEW.KGJT.FF.W.0080.210819T1240Z-210819T1530Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Grand Junction CO
640 AM MDT Thu Aug 19 2021

The National Weather Service in Grand Junction has issued a

* Flash Flood Warning for...
  The Pine Gulch Fire Burn Area in...
  Southwestern Garfield County in west central Colorado...
  North Central Mesa County in west central Colorado...

* Until 930 AM MDT.

* At 640 AM MDT, Doppler radar indicated thunderstorms and 
  rainshowers producing heavy rain over the Pine Gulch Fire Burn 
  Area. Flash flooding is ongoing or expected to begin shortly.

Excessive rainfall over the burn scar will result in debris flow 
moving through the Pine Gulch Burn area. The debris flow can consist 
of rock, mud, vegetation and other loose materials.

  HAZARD...Flash flooding caused by thunderstorms in and around
           the Pine Gulch Fire Burn Area.

  SOURCE...Radar.

  IMPACT...Flooding of areas in and around the Pine Gulch Fire
           Burn Area.

* Some locations that will experience flash flooding include...
  mainly rural areas of Southwestern Garfield and North Central Mesa 
  Counties

PRECAUTIONARY/PREPAREDNESS ACTIONS...

This is a life threatening situation. Heavy rainfall will cause 
extensive and severe flash flooding of creeks...streams...and 
ditches in the Pine Gulch Fire Burn Area. Severe debris flows can 
also be anticipated across roads. Roads and driveways may be washed 
away in places. If you encounter flood waters...climb to safety.

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

&&

LAT...LON 3936 10866 3937 10866 3939 10865 3940 10870
      3944 10876 3943 10878 3946 10879 3951 10875
      3953 10861 3951 10838 3949 10832 3942 10827
      3939 10837 3937 10840 3937 10841 3936 10842
      3932 10851 3929 10853 3929 10858

FLASH FLOOD...RADAR INDICATED

$$

TGR

927 
WGUS75 KGJT 191406
FFSGJT

Flash Flood Statement
National Weather Service Grand Junction CO
806 AM MDT Thu Aug 19 2021

COC045-077-191416-
/O.CAN.KGJT.FF.W.0080.000000T0000Z-210819T1530Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Garfield CO-Mesa CO-
806 AM MDT Thu Aug 19 2021

...FLASH FLOOD WARNING FOR THE PINE GULCH FIRE BURN AREA IS 
CANCELLED FOR SOUTHWESTERN GARFIELD AND NORTH CENTRAL MESA 
COUNTIES...

The heavy rain has ended. Flooding is no longer expected to pose a 
threat. Please continue to heed remaining road closures.

A Flash Flood Watch remains in effect until 1200 AM MDT Friday for 
portions of northwest Colorado and west central Colorado.

LAT...LON 3936 10866 3937 10866 3939 10865 3940 10870
      3944 10876 3943 10878 3946 10879 3951 10875
      3953 10861 3951 10838 3949 10832 3942 10827
      3939 10837 3937 10840 3937 10841 3936 10842
      3932 10851 3929 10853 3929 10858

$$

KJS

Flash Flood Warnings in Colorado, 2021Every flash flood warning in 2021

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.