Alert archive / Washington / Flash Flood Warnings in 2012
Flash Flood Warning 1, NWS Spokane, WA
NWS Spokane, WA issued this flash flood warning at Jul 14, 2012, 3:51 PM PDT for Spokane County, Washington. It was in force for 2 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 14, 2012, 3:51 PM PDT (22:51 UTC)
- Expired
- Jul 14, 2012, 6:07 PM PDT
- In force
- 2 hr
- Issued by
- NWS Spokane, WA
- Area
- Storm-based polygon
- Flood severity
- None
County Spokane County, WA
The radar
The Spokane radar (KOTX), 25 km from the middle of the area, began a volume at 22:52 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, 10.9 hours before the alert went out and 67 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
- 116 J/kg
- Mixed-layer CIN
- -182 J/kg
- Mixed-layer LCL
- 1715 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- 55 m²/s²
- 0-3 km storm-relative helicity
- 37 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
The text
As transmitted, in the capitals the NWS used until 2016.
956 WGUS56 KOTX 142251 FFWOTX WAC063-150015- /O.NEW.KOTX.FF.W.0001.120714T2251Z-120715T0015Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE SPOKANE WA 351 PM PDT SAT JUL 14 2012 THE NATIONAL WEATHER SERVICE IN SPOKANE HAS ISSUED A * FLASH FLOOD WARNING FOR... CENTRAL SPOKANE COUNTY IN EASTERN WASHINGTON... * UNTIL 515 PM PDT * AT 345 PM PDT...THE PUBLIC REPORTED FLASH FLOODING FROM A THUNDERSTORM OVER THE WARNED AREA. INSTATE 90 THROUGH SPOKANE AT EXIT 283B...FREYA EXIT...IS UNDER WATER AND BLOCKING TRAFFIC. FLOODING IS ALSO POSSIBLE IN SURROUNDING LOCATIONS. SIX INCHES OF STANDING WATER HAS BEEN REPORTED AT THE FREYA EXIT. * LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO DISHMAN... TRENTWOOD AND MILLWOOD PRECAUTIONARY/PREPAREDNESS ACTIONS... EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL CREEKS AND STREAMS...URBAN AREAS...HIGHWAYS...STREETS AND UNDERPASSES AS WELL AS OTHER DRAINAGE AREAS AND LOW LYING SPOTS. DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY. MOVE TO HIGHER GROUND. && LAT...LON 4771 11737 4773 11717 4761 11719 4760 11739 $$
2 follow-up statements
066 WGUS56 KOTX 150000 FFWOTX WAC063-150115- /O.EXT.KOTX.FF.W.0001.000000T0000Z-120715T0115Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE SPOKANE WA 500 PM PDT SAT JUL 14 2012 THE NATIONAL WEATHER SERVICE IN SPOKANE HAS EXTENDED THE * FLASH FLOOD WARNING FOR... CENTRAL SPOKANE COUNTY IN EASTERN WASHINGTON... * UNTIL 615 PM PDT * AT 445 PM PDT...THE PUBLIC REPORTED FLOODING IN THE AFTERMATH OF A STRONG THUNDERSTORM THAT RECENTLY MOVED OVER THE AREA. THE WORST FLOODING IS STILL CONFINED TO INTERSTATE 90 THROUGH SPOKANE AT EXIT 283B...WHICH IS THE FREYA EXIT. IT IS UNDER UP TO ONE FOOT OF WATER DUE TO THE HEAVY RAIN AND BLOCKED DRAINS. TRAFFIC IS MOVING...BUT STILL REMAINS BACKED UP IN SPOTS. * LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO TRENTWOOD AND MILLWOOD PRECAUTIONARY/PREPAREDNESS ACTIONS... EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL CREEKS AND STREAMS...URBAN AREAS...HIGHWAYS...STREETS AND UNDERPASSES AS WELL AS OTHER DRAINAGE AREAS AND LOW LYING SPOTS. DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY. MOVE TO HIGHER GROUND. && LAT...LON 4771 11737 4773 11717 4761 11719 4760 11739 $$
278 WGUS76 KOTX 150107 FFSOTX FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE SPOKANE WA 607 PM PDT SAT JUL 14 2012 WAC063-150111- /O.CAN.KOTX.FF.W.0001.000000T0000Z-120715T0115Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ SPOKANE WA- 607 PM PDT SAT JUL 14 2012 ...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR CENTRAL SPOKANE COUNTY... THE THUNDERSTORMS THAT PROMPTED THE FLASH FLOOD WARNING HAVE DISSIPATED AND MOST STANDING WATER HAS RECEDED. RECENT REPORTS HAVE INDICATED THAT TRAFFIC IS FLOWING CLOSER TO NORMAL ON AREA ROADWAYS. THEREFORE... THE WILL ALLOW THE FLASH FLOOD WARNING TO EXPIRE. LAT...LON 4771 11737 4773 11717 4761 11719 4760 11739 $$ TY
The office that day
Everything else NWS Spokane, WA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 13, 11:39 PM PDT | Special Weather Statement | OTX | Ferry | 51 min |
| Jul 14, 1:13 AM PDT | Special Weather Statement | OTX | Stevens | 32 min |
| Jul 14, 3:15 PM PDT | Special Weather Statement | OTX | Spokane | 45 min |
| Jul 14, 4:20 PM PDT | Areal Flood Advisory | OTX | Douglas | 107 min |
Nearby
Flash Flood Warnings in Washington, 2012Every flash flood warning in 2012
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.