Alert archive / Washington / Flash Flood Warnings in 2014
Flash Flood Warning 9, NWS Spokane, WA
NWS Spokane, WA issued this flash flood warning at Aug 12, 2014, 9:41 PM PDT for Chelan County, Washington. It was in force for 5 hr. 1 report came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Aug 12, 2014, 9:41 PM PDT (04:41 UTC)
- Expired
- Aug 13, 2014, 2:30 AM PDT
- In force
- 5 hr
- Issued by
- NWS Spokane, WA
- Area
- Storm-based polygon
- Flood severity
- None
County Chelan County, WA
The radar
The Seattle radar (KATX), 141 km from the middle of the area, began a volume at 04:42 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 12, 11:00 PM PDT | FLASH FLOOD | 3 S Winton, WA | DEBRIS FLOW UP CHIWAUKUM CREEK NEAR BURN SCAR CAUSED ~2 FOOT FLOOD WAVE NEAR ROUTE 2 AND MOUTH OF CREEK. CREEK RUNNING ASH COLORED. SURVEY DONE 8/13 AM, TIME OF EVENT ESTIMATED. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Quillayute State, WA (KUIL), launched 00:00Z, 4.7 hours before the alert went out and 281 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1481 m above ground
- 0-6 km bulk shear
- 11 kt
- 0-1 km storm-relative helicity
- -73 m²/s²
- 0-3 km storm-relative helicity
- 47 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
295
WGUS56 KOTX 130441
FFWOTX
WAC007-130730-
/O.NEW.KOTX.FF.W.0009.140813T0441Z-140813T0730Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SPOKANE WA
941 PM PDT TUE AUG 12 2014
THE NATIONAL WEATHER SERVICE IN SPOKANE HAS ISSUED A
* FLASH FLOOD WARNING FOR...
SOUTHWESTERN CHELAN COUNTY IN NORTH CENTRAL WASHINGTON...
* UNTIL 1230 AM PDT
* AT 937 PM PDT...DOPPLER RADAR INDICATED A THUNDERSTORM PRODUCING
HEAVY RAIN OVER THE CHIWAUKUM BURN SCAR. FLASH FLOODING IS
EXPECTED TO BEGIN SHORTLY. EXCESSIVE RAINFALL OVER THE BURN SCAR
WILL RESULT IN DEBRIS FLOW MOVING THROUGH THE
CHIWAUKUM...HATCHERY...FOOLHEN CREEK DRAINAGES. THE DEBRIS FLOW
CAN CONSIST OF ROCK...MUD...VEGETATION AND OTHER LOOSE MATERIALS.
* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
TUMWATER CAMPGROUND AND WINTON.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
MOVE TO HIGHER GROUND NOW. ACT QUICKLY TO PROTECT YOUR LIFE.
&&
LAT...LON 4773 12071 4761 12069 4764 12081 4773 12086
$$
SB2 follow-up statements
718 WGUS56 KOTX 130727 FFWOTX WAC007-130930- /O.EXT.KOTX.FF.W.0009.000000T0000Z-140813T0930Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE SPOKANE WA 1227 AM PDT WED AUG 13 2014 THE NATIONAL WEATHER SERVICE IN SPOKANE HAS EXTENDED THE * FLASH FLOOD WARNING FOR... SOUTHWESTERN CHELAN COUNTY IN NORTH CENTRAL WASHINGTON... * UNTIL 230 AM PDT * AT 1224 AM PDT...DOPPLER RADAR INDICATED HEAVY RAIN CONTINUING TO FALL OVER THE CHIWAUKUM BURN SCAR. UP TO ONE INCH OF RAIN HAS ALREADY FALLEN. FLASH FLOODING IS EXPECTED. EXCESSIVE RAINFALL OVER THE BURN SCAR WILL RESULT IN DEBRIS FLOW MOVING THROUGH THE CHIWAUKUM...HATCHERY...FOOLHEN CREEK DRAINAGES. THE DEBRIS FLOW CAN CONSIST OF ROCK...MUD...VEGETATION AND OTHER LOOSE MATERIALS. * SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE... TUMWATER CAMPGROUND AND WINTON. ADDITIONAL RAINFALL AMOUNTS OF A QUARTER INCH ARE EXPECTED OVER THE NEXT HOUR. MORE RAINFALL WILL BE POSSIBLE THROUGH THE OVERNIGHT HOURS. PRECAUTIONARY/PREPAREDNESS ACTIONS... MOVE TO HIGHER GROUND NOW. ACT QUICKLY TO PROTECT YOUR LIFE. && LAT...LON 4773 12071 4761 12069 4764 12081 4773 12086 $$ SB
724 WGUS76 KOTX 130927 FFSOTX FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE SPOKANE WA 227 AM PDT WED AUG 13 2014 WAC007-130935- /O.EXP.KOTX.FF.W.0009.000000T0000Z-140813T0930Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ CHELAN WA- 227 AM PDT WED AUG 13 2014 ...THE FLASH FLOOD WARNING FOR SOUTHWESTERN CHELAN COUNTY WILL EXPIRE AT 230 AM PDT... THE HEAVY RAIN HAS ENDED...AND FLASH FLOODING IS NO LONGER EXPECTED TO POSE A THREAT. WE CONTINUE TO MONITOR ADDITIONAL SHOWERS AND THUNDESTORMS DEVELOPING ACROSS THE REIGON WITH A SMALL POTENTIAL FOR ADDITIONAL HEAVY RAIN BEFORE SUNRISE. LAT...LON 4773 12071 4761 12069 4764 12081 4773 12086 $$ SB
The office that day
Everything else NWS Spokane, WA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 12, 5:00 PM PDT | Severe Thunderstorm Warning | OTX | Asotin, Whitman | 60 min |
| Aug 12, 5:10 PM PDT | Severe Thunderstorm Warning | OTX | Adams, Lincoln, Spokane, Whitman | 50 min |
| Aug 12, 5:35 PM PDT | Severe Thunderstorm Warning | OTX | Spokane, Whitman | 25 min |
| Aug 12, 5:49 PM PDT | Severe Thunderstorm Warning | OTX | Ferry, Lincoln, Spokane, Stevens | 56 min |
| Aug 12, 6:43 PM PDT | Severe Thunderstorm Warning | OTX | Douglas, Ferry, Grant, Lincoln, Okanogan, Stevens | 62 min |
| Aug 12, 6:58 PM PDT | Severe Thunderstorm Warning | OTX | Pend Oreille, Spokane | 62 min |
| Aug 12, 7:56 PM PDT | Severe Thunderstorm Warning | OTX | Pend Oreille | 64 min |
| Aug 12, 7:57 PM PDT | Severe Thunderstorm Warning | OTX | Chelan, Douglas, Ferry, Okanogan | 63 min |
| Aug 12, 8:30 PM PDT | Flash Flood Warning | OTX | Okanogan | 3 hr |
| Aug 12, 10:59 PM PDT | Flash Flood Warning | OTX | Chelan | 3 hr |
| Aug 12, 11:06 PM PDT | Flash Flood Warning | OTX | Chelan | 3 hr |
| Aug 13, 12:05 AM PDT | Areal Flood Advisory | OTX | Chelan | 3 hr |
| Aug 13, 12:21 AM PDT | Areal Flood Advisory | OTX | Chelan | 3 hr |
| Aug 13, 12:34 AM PDT | Areal Flood Advisory | OTX | Chelan | 116 min |
| Aug 13, 4:53 AM PDT | Areal Flood Advisory | OTX | Okanogan | 3 hr |
| Aug 13, 6:47 AM PDT | Areal Flood Advisory | OTX | Chelan | 3 hr |
| Aug 13, 7:28 AM PDT | Flash Flood Warning | OTX | Chelan | 3 hr |
| Aug 13, 4:06 PM PDT | Special Weather Statement | OTX | Garfield | 39 min |
| Aug 13, 4:46 PM PDT | Special Weather Statement | OTX | Garfield | 44 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.