Alert archive / Washington / Flash Flood Warnings in 2016
Flash Flood Warning 2, NWS Spokane, WA
NWS Spokane, WA issued this flash flood warning at May 21, 2016, 3:36 PM PDT for Spokane County, Washington. It was in force for 84 min. 2 reports 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
- May 21, 2016, 3:36 PM PDT (22:36 UTC)
- Expired
- May 21, 2016, 5:00 PM PDT
- In force
- 84 min
- Issued by
- NWS Spokane, WA
- Area
- Storm-based polygon
- Flood severity
- None
County Spokane County, WA
The radar
The Spokane radar (KOTX), 14 km from the middle of the area, began a volume at 22:38 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 |
|---|---|---|---|
| May 21, 3:47 PM PDT | FLASH FLOOD | 4 Nw Spokane, WA | WATER AND DEBRIS FLOWING ACROSS 291 BETWEEN FRANCIS BLVD AND RIFLE CLUB ROAD |
| May 21, 4:40 PM PDT | FLASH FLOOD | Nine Mile Falls, WA | WATER OVER ROADWAYS AND ENTERING BASEMENTS OF SOME HOMES. |
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 12:00Z, 10.6 hours before the alert went out and 79 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
- 502 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- 68 m²/s²
- 0-3 km storm-relative helicity
- 72 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
630
WGUS56 KOTX 212236
FFWOTX
WAC063-220000-
/O.NEW.KOTX.FF.W.0002.160521T2236Z-160522T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SPOKANE WA
336 PM PDT SAT MAY 21 2016
THE NATIONAL WEATHER SERVICE IN SPOKANE HAS ISSUED A
* FLASH FLOOD WARNING FOR...
CENTRAL SPOKANE COUNTY IN NORTHEASTERN WASHINGTON...
* UNTIL 500 PM PDT
* AT 334 PM PDT...LOCAL LAW ENFORCEMENT REPORTED A THUNDERSTORM
PRODUCING HEAVY RAIN ACROSS THE WARNED AREA. STANDING WATER
REPORTED ACROSS THE SPOKANE AREA. UP TO TWO INCHES OF RAIN HAVE
ALREADY FALLEN. FLASH FLOODING IS EXPECTED TO BEGIN SHORTLY.
* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
SPOKANE...NINE MILE FALLS...TOWN AND COUNTRY...COUNTRY HOMES AND
FAIRWOOD.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TURN AROUND...DONT DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.
&&
LAT...LON 4778 11740 4768 11739 4768 11753 4778 11756
$$
SVH2 follow-up statements
019 WGUS76 KOTX 212257 FFSOTX FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE SPOKANE WA 357 PM PDT SAT MAY 21 2016 WAC063-220000- /O.CON.KOTX.FF.W.0002.000000T0000Z-160522T0000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ SPOKANE WA- 357 PM PDT SAT MAY 21 2016 ...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 500 PM PDT FOR CENTRAL SPOKANE COUNTY... AT 349 PM PDT...A NATIONAL WEATHER SERVICE EMPLOYEE REPORTED THUNDERSTORMS PRODUCING HEAVY RAIN IN NORTHWEST SPOKANE. WATER WITH MUD AND ROCKS IS FLOWING DOWN STATE ROUTE 291 BETWEEN WEST FRANCIS AVENUE AND WEST LYONS AVENUE. RADAR ESTIMATES UP TO TWO INCHES OF RAIN HAS FALLEN WITH THIS THUNDERSTORM. FLASH FLOODING IS EXPECTED. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE... SPOKANE...NINE MILE FALLS...TOWN AND COUNTRY...COUNTRY HOMES AND FAIRWOOD. PRECAUTIONARY/PREPAREDNESS ACTIONS... && LAT...LON 4778 11740 4768 11739 4768 11753 4778 11756 $$ SVH
579 WGUS76 KOTX 212356 FFSOTX FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE SPOKANE WA 456 PM PDT SAT MAY 21 2016 WAC063-220005- /O.EXP.KOTX.FF.W.0002.000000T0000Z-160522T0000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ SPOKANE WA- 456 PM PDT SAT MAY 21 2016 ...THE FLASH FLOOD WARNING FOR CENTRAL SPOKANE COUNTY WILL EXPIRE AT 500 PM PDT... THE HEAVY RAIN HAS ENDED. FLOODING IS NO LONGER EXPECTED TO POSE A THREAT. PLEASE CONTINUE TO HEED ANY REMAINING ROAD CLOSURES. LAT...LON 4778 11740 4768 11739 4768 11753 4778 11756 $$ SVH
The office that day
Everything else NWS Spokane, WA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 21, 2:42 PM PDT | Areal Flood Advisory | OTX | Spokane | 2 hr |
| May 21, 4:27 PM PDT | Areal Flood Advisory | OTX | Lincoln, Spokane, Stevens | 2 hr |
| May 21, 4:46 PM PDT | Areal Flood Advisory | OTX | Spokane | 119 min |
Nearby
Flash Flood Warnings in Washington, 2016Every flash flood warning in 2016
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.