Alert archive / Washington / Flash Flood Warnings in 2015
Flash Flood Warning 13, NWS Spokane, WA
NWS Spokane, WA issued this flash flood warning at Jun 1, 2015, 7:17 PM PDT for Ferry County, Okanogan County, Washington. It was in force for 3 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
- Jun 1, 2015, 7:17 PM PDT (02:17 UTC)
- Expired
- Jun 1, 2015, 10:15 PM PDT
- In force
- 3 hr
- Issued by
- NWS Spokane, WA
- Area
- Storm-based polygon
- Flood severity
- None
Counties Ferry County, WA, Okanogan County, WA
The radar
The Spokane radar (KOTX), 111 km from the middle of the area, began a volume at 02:17 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 |
|---|---|---|---|
| Jun 1, 7:30 PM PDT | FLASH FLOOD | Keller, WA | VERY HEAVY RAIN FLOODED THE PARKING LOT AT THE KELLER STORE. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Spokane, WA (KOTX), launched 00:00Z, 2.3 hours before the alert went out and 189 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
- 610 J/kg
- Mixed-layer CIN
- -29 J/kg
- Mixed-layer LCL
- 1932 m above ground
- 0-6 km bulk shear
- 13 kt
- 0-1 km storm-relative helicity
- 31 m²/s²
- 0-3 km storm-relative helicity
- 52 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
129
WGUS56 KOTX 020217
FFWOTX
WAC019-047-020515-
/O.NEW.KOTX.FF.W.0013.150602T0217Z-150602T0515Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SPOKANE WA
717 PM PDT MON JUN 1 2015
THE NATIONAL WEATHER SERVICE IN SPOKANE HAS ISSUED A
* FLASH FLOOD WARNING FOR...
SOUTHWESTERN FERRY COUNTY IN NORTHEASTERN WASHINGTON...
EAST CENTRAL OKANOGAN COUNTY IN NORTHEASTERN WASHINGTON...
* UNTIL 1015 PM PDT
* AT 714 PM PDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING
HEAVY RAIN ACROSS THE WARNED AREA. FLASH FLOODING IS EXPECTED TO
BEGIN SHORTLY. EXCESSIVE RAINFALL OVER THE DEVILS ELBOW BURN SCAR
WILL RESULT IN POSSIBLE DEBRIS FLOWS. ADDITIONAL FLOODING WILL BE
POSSIBLE ALONG HIGHWAY 21 NORTH OF KELLER AND HIGHWAY 155 NEAR
NESPELEM. DEBRIS FLOWS CAN CONSIST OF ROCK...MUD...VEGETATION AND
OTHER LOOSE MATERIALS.
* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE... NESPELEM
COMMUNITY...NESPELEM AND KELLER...AND THE DEVILS ELBOW BURN SCAR.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
MOVE TO HIGHER GROUND NOW. ACT QUICKLY TO PROTECT YOUR LIFE.
MOVE AWAY FROM RECENTLY BURNED AREAS. LIFE THREATENING FLOODING OF
CREEKS...ROADS AND NORMALLY DRY ARROYOS IS LIKELY. THE HEAVY RAINS
WILL LIKELY TRIGGER ROCKSLIDES...MUDSLIDES AND DEBRIS FLOWS IN STEEP
TERRAIN...ESPECIALLY IN AND AROUND THESE AREAS.
THE AFFECTED AREA IS THE DEVILS ELBOW FIRE BURN SCAR IN THE SANPOIL
RIVER VALLEY. HIGH INTENSITY RAINFALL ON THE BURNED AREA MAY CAUSE
DANGEROUS FLASH FLOODING AND DEBRIS FLOWS. RESIDENTS...
RECREATIONISTS...AND MOTORISTS IN AND BELOW THE DEVILS ELBOW BURNED
AREA SHOULD TAKE IMMEDIATE PRECAUTIONS TO PROTECT LIFE AND PROPERTY.
&&
LAT...LON 4851 11904 4853 11835 4798 11846 4804 11899
$$
FX3 follow-up statements
791 WGUS76 KOTX 020301 FFSOTX FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE SPOKANE WA 801 PM PDT MON JUN 1 2015 WAC019-047-020515- /O.CON.KOTX.FF.W.0013.000000T0000Z-150602T0515Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ FERRY WA-OKANOGAN WA- 801 PM PDT MON JUN 1 2015 ...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1015 PM PDT FOR SOUTHWESTERN FERRY AND EAST CENTRAL OKANOGAN COUNTIES... AT 755 PM PDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING EXTREMELY HEAVY RAIN ACROSS THE WARNED AREA. RADAR HAS ESTIMATED ANYWHERE FROM 1.00 TO 1.50 INCHES ACROSS MUCH OF THE AREA BETWEEN NESPELEM AND KELLER. FLASH FLOODING IS LIKELY TO OCCUR FROM THESE HEAVY RAINS. THE TORRENTIAL RAINS ARE MOVING THROUGH THE SOUTHERN END OF THE DEVILS ELBOW COMPLEX AND WILL LIKELY LEAD TO DEBRIS FLOWS AND FLOODING IN LOW LYING AREAS. DEBRIS FLOW CAN CONSIST OF ROCK...MUD...VEGETATION AND OTHER LOOSE MATERIALS. SOME LOCATIONS THAT WILL EXPERIENCE SIGNIFICANT FLOODING INCLUDE... NESPELEM COMMUNITY...NESPELEM AND KELLER. THIS INCLUDES HIGHWAY 21 NORTH OF KELLER. MINOR TO MODERATE FLOODING IS ALSO EXPECTED ALONG HIGHWAY 155 NEAR NESPELEM. PRECAUTIONARY/PREPAREDNESS ACTIONS... MOVE TO HIGHER GROUND NOW. ACT QUICKLY TO PROTECT YOUR LIFE. MOVE AWAY FROM RECENTLY BURNED AREAS. LIFE THREATENING FLOODING OF CREEKS...ROADS AND NORMALLY DRY ARROYOS IS LIKELY. THE HEAVY RAINS WILL LIKELY TRIGGER ROCKSLIDES...MUDSLIDES AND DEBRIS FLOWS IN STEEP TERRAIN...ESPECIALLY IN AND AROUND THESE AREAS. && LAT...LON 4851 11904 4853 11835 4802 11847 4807 11898 $$ FX
393 WGUS76 KOTX 020413 FFSOTX FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE SPOKANE WA 913 PM PDT MON JUN 1 2015 WAC019-047-020515- /O.CON.KOTX.FF.W.0013.000000T0000Z-150602T0515Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ FERRY WA-OKANOGAN WA- 913 PM PDT MON JUN 1 2015 ...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1015 PM PDT FOR WEST CENTRAL FERRY AND EAST CENTRAL OKANOGAN COUNTIES... AT 909 PM PDT...DOPPLER RADAR CONTINUED TO INDICATE THUNDERSTORMS PRODUCING HEAVY RAIN ACROSS THE WARNED AREA. UP TO ONE TO ONE AND A HALF INCHES OF RAIN HAS HAS ALREADY FALLEN ACCORDING TO RADAR REPORTS WITH THE HEAVIEST AMOUNTS OCCURRING ALONG HIGHWAY 21 NORTH OF KELLER AND AFFECTING MUCH OF THE DEVILS ELBOW BURN SCAR. THROUGH 1015 PM MOST OF THE ADDITIONAL RAINFALL AND SUBSEQUENT FLOODING IS EXPECTED TO OCCUR NORTH OF THE DEVILS ELBOW BURN SCAR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE... NESPELEM COMMUNITY. PRECAUTIONARY/PREPAREDNESS ACTIONS... BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE DANGERS OF FLOODING. MOVE AWAY FROM RECENTLY BURNED AREAS. LIFE THREATENING FLOODING OF CREEKS...ROADS AND NORMALLY DRY ARROYOS IS LIKELY. THE HEAVY RAINS WILL LIKELY TRIGGER ROCKSLIDES...MUDSLIDES AND DEBRIS FLOWS IN STEEP TERRAIN...ESPECIALLY IN AND AROUND THESE AREAS. && LAT...LON 4851 11904 4853 11835 4816 11844 4819 11900 $$ FX
686 WGUS76 KOTX 020510 FFSOTX FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE SPOKANE WA 1010 PM PDT MON JUN 1 2015 WAC019-047-020517- /O.EXP.KOTX.FF.W.0013.000000T0000Z-150602T0515Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ FERRY WA-OKANOGAN WA- 1010 PM PDT MON JUN 1 2015 ...THE FLASH FLOOD WARNING FOR WEST CENTRAL FERRY AND EAST CENTRAL OKANOGAN COUNTIES WILL EXPIRE AT 1015 PM PDT... ALTHOUGH MORE SHOWERS WILL BE POSSIBLE THIS EVENING AND INTO EARLY TUESDAY MORNING THE THREAT OF WIDESPREAD HEAVY RAIN HAS ENDED FOR THE NIGHT. LAT...LON 4851 11904 4853 11835 4816 11844 4819 11900 $$ FX
The office that day
Everything else NWS Spokane, WA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 1, 5:44 PM PDT | Severe Thunderstorm Warning | OTX | Adams, Grant | 49 min |
| Jun 1, 5:53 PM PDT | Special Weather Statement | OTX | Douglas | 37 min |
| Jun 1, 6:23 PM PDT | Areal Flood Advisory | OTX | Chelan, Douglas, Okanogan | 112 min |
| Jun 1, 6:42 PM PDT | Flash Flood Warning | OTX | Okanogan | 4 hr |
| Jun 1, 6:45 PM PDT | Special Weather Statement | OTX | Spokane | 45 min |
| Jun 1, 6:56 PM PDT | Special Weather Statement | OTX | Ferry | 64 min |
| Jun 1, 7:04 PM PDT | Flash Flood Warning | OTX | Spokane, Stevens | 3 hr |
| Jun 1, 7:25 PM PDT | Severe Thunderstorm Warning | OTX | Stevens | 24 min |
| Jun 1, 8:01 PM PDT | Special Weather Statement | OTX | Stevens | 59 min |
| Jun 1, 8:35 PM PDT | Special Weather Statement | OTX | Stevens | 55 min |
| Jun 1, 8:48 PM PDT | Areal Flood Advisory | OTX | Pend Oreille, Spokane | 3 hr |
| Jun 1, 9:17 PM PDT | Flash Flood Warning | OTX | Pend Oreille | 3 hr |
| Jun 1, 9:51 PM PDT | Areal Flood Advisory | OTX | Pend Oreille | 3 hr |
| Jun 1, 11:53 PM PDT | Areal Flood Advisory | OTX | Ferry, Stevens | 4 hr |
| Jun 2, 3:14 AM PDT | Areal Flood Advisory | OTX | Ferry | 3 hr |
| Jun 2, 1:18 PM PDT | Areal Flood Advisory | OTX | Ferry, Okanogan | 10 hr |
Nearby
Flash Flood Warnings in Washington, 2015Every flash flood warning in 2015
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.