Alert archive / Washington / Flash Flood Warnings in 2014

Flash Flood Warning 1, NWS Spokane, WA

July 23, 2014Okanogan County, Washington

NWS Spokane, WA issued this flash flood warning at Jul 23, 2014, 12:55 PM PDT for Okanogan County, Washington. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Jul 23, 2014, 12:55 PM PDT (19:55 UTC)
Expired
Jul 23, 2014, 4:00 PM PDT
In force
3 hr
Issued by
NWS Spokane, WA
Area
Storm-based polygon
Flood severity
None

County Okanogan County, WA

The radar

The Seattle radar (KATX), 180 km from the middle of the area, began a volume at 19:54 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.

The nearest sounding before it

Spokane, WA (KOTX), launched 12:00Z, 7.9 hours before the alert went out and 283 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Spokane, WA at 12:00Z on 2014-07-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Spokane, WA at 12:00Z on 2014-07-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 124 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1236 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
124 m²/s²
0-3 km storm-relative helicity
100 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

192 
WGUS56 KOTX 231957
FFWOTX
WAC047-232300-
/O.NEW.KOTX.FF.W.0001.140723T1955Z-140723T2300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SPOKANE WA
1255 PM PDT WED JUL 23 2014

THE NATIONAL WEATHER SERVICE IN SPOKANE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  THE CARLTON AND COUGAR COMPLEX BURN SCARS IN SOUTH CENTRAL 
  OKANOGAN COUNTY IN NORTHEAST WASHINGTON...

* UNTIL 400 PM PDT
    
* AT 1255 PM PDT...DOPPLER RADAR INDICATED A THUNDERSTORM PRODUCING 
  HEAVY RAIN ON THE SOUTHWESTERN EDGE OF THE CARTLTON COMPLEX BURN 
  SCAR. FLASH FLOODING IS EXPECTED TO BEGIN SHORTLY.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  TWISP...FOGGY DEW CAMPGROUND...CRATER CREEK CAMPGROUND AND CARLTON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

THE AFFECTED AREAS ARE THE COUGAR COMPLEX FIRE BURN SCARS BETWEEN THE
OKANOGAN AND METHOW RIVERS. HIGH INTENSITY RAINFALL ON THE BURNED
AREAS MAY CAUSE DANGEROUS FLASH FLOODING AND DEBRIS FLOWS. RESIDENTS
AND MOTORISTS IN AND BELOW THE COUGAR COMPLEX FIRE BURN SCAR IN THE
METHOW AND OKANOGAN VALLEYS...INCLUDING MOTORISTS ON STATE HIGHWAY 
20 BETWEEN TWISP AND THE OKANOGAN RIVER... AND STATE HIGHWAY 153 
FROM CARLTON TO WINTHROP...SHOULD TAKE IMMEDIATE PRECAUTIONS TO 
PROTECT LIFE AND PROPERTY.

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 AND STATE HIGHWAY 153 FROM PATEROS TO TWISP...SHOULD 
TAKE IMMEDIATE PRECAUTIONS TO PROTECT LIFE AND PROPERTY.

&&

LAT...LON 4847 11996 4812 12014 4821 12024 4854 12009

$$

KR
3 follow-up statements
835 
WGUS76 KOTX 232053
FFSOTX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SPOKANE WA
150 PM PDT WED JUL 23 2014

WAC047-232300-
/O.CON.KOTX.FF.W.0001.000000T0000Z-140723T2300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
OKANOGAN WA-
150 PM PDT WED JUL 23 2014

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 400 PM PDT FOR 
THE CARLTON AND COUGAR COMPLEX BURN SCARS IN SOUTH CENTRAL 
OKANOGAN COUNTY...

AT 150 PM PDT...DOPPLER RADAR INDICATED THAT ADDITIONAL STORMS ARE 
MOVING OVER THE WARNED AREA AND MORE RAIN IS EXPECTED. 

RAINFALL OVER THE BURN SCARS CAN RESULT IN DEBRIS FLOWS. THE DEBRIS 
FLOW CAN CONSIST OF ROCK...MUD...VEGETATION AND OTHER LOOSE 
MATERIALS.

SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
TWISP...FOGGY DEW CAMPGROUND...CRATER CREEK CAMPGROUND AND CARLTON. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

THE AFFECTED AREAS ARE THE COUGAR COMPLEX FIRE BURN SCARS BETWEEN 
THE OKANOGAN AND METHOW RIVERS. HIGH INTENSITY RAINFALL ON THE 
BURNED AREAS MAY CAUSE DANGEROUS FLASH FLOODING AND DEBRIS FLOWS. 
RESIDENTS AND MOTORISTS IN AND BELOW THE COUGAR COMPLEX FIRE BURN 
SCAR IN THE METHOW AND OKANOGAN VALLEYS...INCLUDING MOTORISTS ON 
STATE HIGHWAY 20 BETWEEN TWISP AND THE OKANOGAN RIVER... AND STATE 
HIGHWAY 153 FROM CARLTON TO WINTHROP...SHOULD TAKE IMMEDIATE 
PRECAUTIONS TO PROTECT LIFE AND PROPERTY.

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 AND STATE HIGHWAY 153 FROM PATEROS TO TWISP...SHOULD 
TAKE IMMEDIATE PRECAUTIONS TO PROTECT LIFE AND PROPERTY.

&&

LAT...LON 4847 11996 4812 12014 4821 12024 4854 12009

$$

KR
398 
WGUS76 KOTX 232214
FFSOTX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SPOKANE WA
309 PM PDT WED JUL 23 2014

WAC047-232300-
/O.CON.KOTX.FF.W.0001.000000T0000Z-140723T2300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
OKANOGAN WA-
309 PM PDT WED JUL 23 2014

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 400 PM PDT FOR
SOUTH CENTRAL OKANOGAN COUNTY...

AT 309 PM PDT...DOPPLER RADAR HAS TRACKED SEVERAL STORMS MOVING OVER 
THE WESTERN EDGE OF THE COUGAR AND CARLTON COMPLEX BURN SCARS. 
ANOTHER ROUND OF RAIN IS EXPECTED TO ARRIVE AROUND 4:30PM. 

EXCESSIVE RAINFALL OVER THE BURN SCAR MAY RESULT IN DEBRIS FLOWS. 
THE DEBRIS FLOWS 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 COUGAR COMPLEX FIRE BURN SCARS BETWEEN 
THE OKANOGAN AND METHOW RIVERS. HIGH INTENSITY RAINFALL ON THE 
BURNED AREAS MAY CAUSE DANGEROUS FLASH FLOODING AND DEBRIS FLOWS. 
RESIDENTS AND MOTORISTS IN AND BELOW THE COUGAR COMPLEX FIRE BURN 
SCAR IN THE METHOW AND OKANOGAN VALLEYS...INCLUDING MOTORISTS ON 
STATE HIGHWAY 20 BETWEEN TWISP AND THE OKANOGAN RIVER... AND STATE 
HIGHWAY 153 FROM CARLTON TO WINTHROP...SHOULD TAKE IMMEDIATE 
PRECAUTIONS TO PROTECT LIFE AND PROPERTY.

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 AND STATE HIGHWAY 153 FROM PATEROS TO TWISP...SHOULD 
TAKE IMMEDIATE PRECAUTIONS TO PROTECT LIFE AND PROPERTY.

&&

LAT...LON 4847 11996 4812 12014 4821 12024 4854 12009

$$

KR
838 
WGUS76 KOTX 232256
FFSOTX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SPOKANE WA
352 PM PDT WED JUL 23 2014

WAC047-232302-
/O.EXP.KOTX.FF.W.0001.000000T0000Z-140723T2300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
OKANOGAN WA-
352 PM PDT WED JUL 23 2014

...THE FLASH FLOOD WARNING FOR THE CARLTON AND COUGAR COMPLEX 
BURN SCARS IN SOUTH CENTRAL OKANOGAN COUNTY WILL
EXPIRE AT 400 PM PDT...

THE HEAVY RAIN HAS ENDED FOR NOW...ADDITIONAL RAIN IS EXPECTED IN 
THE AREA AROUND 4:45PM SO STAY TUNED TO THE LATEST WATCHES AND 
WARNINGS.

LAT...LON 4847 11996 4812 12014 4821 12024 4854 12009

$$

KR

The office that day

Everything else NWS Spokane, WA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 23, 1:26 PM PDTSevere Thunderstorm WarningOTXOkanogan40 min
Jul 23, 1:41 PM PDTFlash Flood WarningOTXChelan3 hr
Jul 23, 2:08 PM PDTFlash Flood WarningOTXChelan5 hr
Jul 23, 2:41 PM PDTSevere Thunderstorm WarningOTXGarfield, Whitman49 min
Jul 23, 2:43 PM PDTAreal Flood AdvisoryOTXOkanogan3 hr
Jul 23, 2:51 PM PDTSpecial Weather StatementOTXOkanogan24 min
Jul 23, 2:56 PM PDTSpecial Weather StatementOTXLincoln34 min
Jul 23, 3:00 PM PDTSpecial Weather StatementOTXStevens45 min
Jul 23, 3:13 PM PDTSevere Thunderstorm WarningOTXFerry, Stevens47 min
Jul 23, 3:22 PM PDTSevere Thunderstorm WarningOTXWhitman38 min
Jul 23, 3:31 PM PDTSpecial Weather StatementOTXWhitman44 min
Jul 23, 3:37 PM PDTSevere Thunderstorm WarningOTXAsotin, Garfield, Whitman38 min
Jul 23, 3:59 PM PDTSevere Thunderstorm WarningOTXStevens31 min
Jul 23, 4:00 PM PDTSevere Thunderstorm WarningOTXLincoln, Spokane, Stevens45 min
Jul 23, 4:01 PM PDTSevere Thunderstorm WarningOTXSpokane, Whitman44 min
Jul 23, 4:09 PM PDTSpecial Weather StatementOTXFerry66 min
Jul 23, 4:22 PM PDTSevere Thunderstorm WarningOTXPend Oreille, Stevens53 min
Jul 23, 4:26 PM PDTSevere Thunderstorm WarningOTXDouglas, Ferry, Grant, Lincoln, Okanogan, Stevens49 min
Jul 23, 4:40 PM PDTSevere Thunderstorm WarningOTXLincoln35 min
Jul 23, 4:58 PM PDTSevere Thunderstorm WarningOTXFerry, Okanogan77 min

Nearby

Flash Flood Warnings in Washington, 2014Every flash flood warning in 2014

Sources

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.