Flash Flood Warning 4, NWS Spokane, WA

Issued

May 28, 2015, 6:27 PM PDT (01:27 UTC)

Expired

May 28, 2015, 9:15 PM PDT

In force

3 hr

Issued by

NWS Spokane, WA

Area

Storm-based polygon

Flood severity

None

County Okanogan County, WA

The Seattle radar (KATX), 178 km from the middle of the area, began a volume at 01:29 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.

425 
WGUS56 KOTX 290127
FFWOTX
WAC047-290415-
/O.NEW.KOTX.FF.W.0004.150529T0127Z-150529T0415Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SPOKANE WA
627 PM PDT THU MAY 28 2015

THE NATIONAL WEATHER SERVICE IN SPOKANE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTH CENTRAL OKANOGAN COUNTY IN NORTHEASTERN WASHINGTON...

* UNTIL 915 PM PDT

* AT 620 PM PDT...10 MILES SOUTH SOUTHEAST OF TWISP WAS A RAPID TWO 
  FOOT CLIMB OF WATER ON TEXAS CREEK THAT THREATENED A HOUSE. 

* AT 605 PM PDT...DEBRIS FLOWS WERE REPORTED ON GRAVEL ROADS. THE   
  REPORT WAS 4 MILES WEST OF THE TOWN OF CARLTON ALONG HIGHWAY 153.  
  THIS FLASH  FLOODING IN IS IN THE SAME AREA AS THE TEXAS CREEK   
  DEBRIS FLOW ALONG HIGHWAY 153. 

* PERSONS DOWNSTREAM OF ANY OF THESE DEBRIS FLOWS SHOULD ACT AND 
  PREPARE FOR THESE FLOWS COMING DOWNSTREAM. PERSONS TRAVELING ALONG 
  HIGHWAY 153 BETWEEN METHOW...CARLTON AND TWISP SHOULD PREPARE FOR 
  POSSIBLE ROAD CLOSURES OR WASHOUTS.  

* EXCESSIVE RAINFALL OVER THE CARLTON COMPLEX BURN SCAR WILL RESULT 
  IN DEBRIS FLOWS. THE DEBRIS FLOW CAN CONSIST OF  
  ROCK...MUD...VEGETATION AND OTHER LOOSE MATERIALS.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOVE TO HIGHER GROUND NOW. ACT QUICKLY TO PROTECT YOUR LIFE.

THE AFFECTED AREAS ARE THE CARLTON COMPLEX FIRE BURN SCARS ABOVE THE
METHOW RIVER VALLEY. HIGH INTENSITY RAINFALL ON THE BURNED AREAS MAY
CAUSE DANGEROUS FLASH FLOODING AND DEBRIS FLOWS. RESIDENTS AND
MOTORISTS IN AND BELOW THE CARLTON COMPLEX FIRE BURN SCAR IN THE
METHOW VALLEY...INCLUDING MOTORISTS ON HIGHWAY 97A FROM CHELAN TO
BREWSTER...AND STATE HIGHWAY 153 FROM PATEROS TO TWISP...SHOULD TAKE
IMMEDIATE PRECAUTIONS TO PROTECT LIFE AND PROPERTY.

&&

LAT...LON 4832 11999 4815 12017 4815 12020 4838 12014

$$

BZ

391 
WGUS76 KOTX 290151
FFSOTX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SPOKANE WA
651 PM PDT THU MAY 28 2015

WAC047-290415-
/O.CON.KOTX.FF.W.0004.000000T0000Z-150529T0415Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
OKANOGAN WA-
651 PM PDT THU MAY 28 2015

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 915 PM PDT FOR
SOUTH CENTRAL OKANOGAN COUNTY...

FLASH FLOODING IS ALREADY OCCURRING.

AT 640 PM PDT... EMERGENCY MANAGEMENT REPORTED A TWO FOOT WALL OF 
MUDDY WATER AND DEBRIS FLOW 30 FEET WIDE COMING DOWN TEXAS CREEK. 
ROAD 270 HAS BEEN WASHED OUT. THIS WATER AND DEBRIS IS EXPECTED TO 
TRAVEL DOWNSTREAM AND REACH THE CARLTON LOOP ROAD BETWEEN 645 PM PDT 
AND 700 PM PDT. HOWEVER...THIS FLOW IS MOVING THROUGH A DRY PART OF 
THE CREEK AND THE DEPTH AND WIDTH OF THE DEBRIS FLOW IS SUBSIDING. 

EXCESSIVE RAINFALL OVER THE BURN SCAR AROUND 5 PM PDT HAS RESULTED 
IN DEBRIS FLOWS MOVING THROUGH THE TEXAS CREEK DRAINAGE. THE DEBRIS 
FLOW CAN CONSIST OF ROCK...MUD...VEGETATION AND OTHER LOOSE 
MATERIALS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

ACT QUICKLY TO PROTECT PROPERTY. TRAVELERS ON HIGHWAY 153 SHOULD BE 
ALERT FOR DEBRIS FLOWS. 

&&

LAT...LON 4832 11999 4815 12017 4815 12020 4838 12014

$$

BZ

061 
WGUS76 KOTX 290259
FFSOTX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SPOKANE WA
759 PM PDT THU MAY 28 2015

WAC047-290302-
/O.CAN.KOTX.FF.W.0004.000000T0000Z-150529T0415Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
OKANOGAN WA-
759 PM PDT THU MAY 28 2015

...THE FLASH FLOOD WARNING FOR SOUTH CENTRAL OKANOGAN COUNTY IS
CANCELLED...

FLOOD WATERS HAVE RECEDED...AND ARE NO LONGER EXPECTED TO POSE A
THREAT TO LIFE OR PROPERTY. PLEASE CONTINUE TO HEED ANY ROAD 
CLOSURES. THERE ARE NO ROAD CLOSURES ALONG HIGHWAY 153. 
HOWEVER...FOREST ROAD 270 NEAR TEXAS CREEK HAS BEEN WASHED OUT. 

EMERGENCY MANAGEMENT AND COUNTY SHERIFFS CONFIRMED THAT THE FLOOD 
THREAT OF MUDDY WATER AND DEBRIS FLOWS HAVE ENDED. AND...WITH NO 
FURTHER HEAVY RAINS EXPECTED...THE FLASH FLOOD WARNING WILL EXPIRE 
AT 800 PM PDT. 


LAT...LON 4832 11999 4815 12017 4815 12020 4838 12014

$$

BZ

Flash Flood Warnings in Washington, 2015Every flash flood warning in 2015

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.