Alert archive / Washington / Flash Flood Warnings in 2008
Flash Flood Warning 2, NWS Spokane, WA
NWS Spokane, WA issued this flash flood warning at May 29, 2008, 2:19 PM PDT for Ferry County, Washington. It was in force for 86 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- May 29, 2008, 2:19 PM PDT (21:19 UTC)
- Expired
- May 29, 2008, 3:45 PM PDT
- In force
- 86 min
- Issued by
- NWS Spokane, WA
- Area
- Storm-based polygon
- Flood severity
- None
County Ferry County, WA
The radar
The Spokane radar (KOTX), 101 km from the middle of the area, began a volume at 21:21 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, 9.3 hours before the alert went out and 171 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
- 82 J/kg
- Mixed-layer CIN
- -126 J/kg
- Mixed-layer LCL
- 751 m above ground
- 0-6 km bulk shear
- 9 kt
- 0-1 km storm-relative helicity
- 65 m²/s²
- 0-3 km storm-relative helicity
- 115 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
WGUS56 KOTX 292124
FFWOTX
WAC019-292245-
/O.NEW.KOTX.FF.W.0002.080529T2119Z-080529T2245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SPOKANE WA
219 PM PDT THU MAY 29 2008
THE NATIONAL WEATHER SERVICE IN SPOKANE HAS ISSUED A
* FLASH FLOOD WARNING FOR...
CENTRAL FERRY COUNTY IN NORTHEAST WASHINGTON...
* UNTIL 345 PM PDT
* AT 216 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
HEAVY RAIN ACCUMULATION IN ASSOCIATION WITH TWO THUNDERSTORMS 13
MILES WEST OF INCHELIUM. THESE STORMS HAVE REMAINED NEARLY
STATIONARY FOR THE LAST HOUR WITH DOPPLER RADAR INDICATING
RAINFALL ACCUMULATIONS OF OVER 1.6 INCHES.
* THE STORM PRODUCING FLASH FLOODING WILL OTHERWISE REMAIN OVER
MAINLY RURAL AREAS OF THE INDICATED COUNTY...GENERALLY NEAR AND
WEST OF TWIN LAKES.
EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...COUNTRY ROADS...AS WELL AS FARMLAND ALONG THE
BANKS OF CREEKS AND STREAMS.
IN HILLY TERRAIN THERE ARE HUNDREDS OF LOW WATER CROSSINGS WHICH ARE
POTENTIALLY DANGEROUS IN HEAVY RAIN. DO NOT ATTEMPT TO TRAVEL ACROSS
FLOODED ROADS. FIND ALTERNATE ROUTES. IT TAKES ONLY A FEW INCHES OF
SWIFTLY FLOWING WATER TO CARRY VEHICLES AWAY.
TO REPORT FLOODING...HAVE THE NEAREST LAW ENFORCEMENT AGENCY RELAY
YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN
SPOKANE.
LAT...LON 4868 11862 4876 11832 4828 11820 4822 11820
4814 11823 4815 11868 4838 11867
TIME...MOT...LOC 2119Z 181DEG 6KT 4828 11852
$$
FRIES2 follow-up statements
000
WGUS76 KOTX 292143
FFSOTX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SPOKANE WA
241 PM PDT THU MAY 29 2008
WAC019-292245-
/O.CON.KOTX.FF.W.0002.000000T0000Z-080529T2245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
FERRY WA-
241 PM PDT THU MAY 29 2008
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 345 PM PDT FOR
EASTERN FERRY COUNTY...
AT 235 PM PDT...LOCAL FIRE OFFICIALS REPORTED A THUNDERSTORM
PRODUCING FLASH FLOODING...AS WELL AS MUD AND ROCK SLIDES ONTO
BRIDGE CREEK ROAD NEAR THE BRIDGE CREEK SUMMIT. THIS STORM WAS
LOCATED 10 MILES SOUTHWEST OF INCHELIUM AND WAS NEARLY STATIONARY.
NATIONAL WEATHER SERVICE DOPPLER RADAR NOW INDICATES THAT OVER 2.5
INCHES OF RAIN HAS FALLEN IN THIS AREA...WITH NEARLY AN INCH OF THAT
IN THE LAST 20 MINUTES.
THIS THUNDERSTORM WITH EXCESSIVE RAIN WILL OTHERWISE REMAIN OVER
MAINLY RURAL AREAS OF THE INDICATED COUNTY JUST WEST OF THE TWIN
LAKES AREA.
IN HILLY TERRAIN THERE ARE HUNDREDS OF LOW WATER CROSSINGS WHICH ARE
POTENTIALLY DANGEROUS IN HEAVY RAIN. DO NOT ATTEMPT TO TRAVEL ACROSS
FLOODED ROADS. FIND ALTERNATE ROUTES. IT TAKES ONLY A FEW INCHES OF
SWIFTLY FLOWING WATER TO CARRY VEHICLES AWAY.
TO REPORT FLOODING...HAVE THE NEAREST LAW ENFORCEMENT AGENCY RELAY
YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN
SPOKANE.
LAT...LON 4868 11862 4876 11832 4828 11820 4822 11820
4814 11823 4815 11868 4838 11867
TIME...MOT...LOC 2141Z 277DEG 2KT 4825 11841
$$
FRIES000
WGUS76 KOTX 292238
FFSOTX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SPOKANE WA
336 PM PDT THU MAY 29 2008
WAC019-292246-
/O.EXP.KOTX.FF.W.0002.000000T0000Z-080529T2245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
FERRY WA-
336 PM PDT THU MAY 29 2008
...THE FLASH FLOOD WARNING WILL EXPIRE AT 345 PM PDT/445 PM MDT/ FOR
EASTERN FERRY COUNTY...
THE STORMS THAT HAD CAUSED MUD AND ROCK SLIDES ALONG BRIDGE CREEK
ROAD HAVE MOVED EAST OF THE AREA. DOPPLER RADAR INDICATES THAT OVER
2.5 INCHES OF RAIN FELL IN THIS AREA...SO HIGH WATER MAY STILL BE
PRESENT...HOWEVER ADDITIONAL FLASH FLOODING IS NOT EXPECTED AT THIS
TIME OVER THE WARNED AREA. THE WARNING WILL THEREFORE BE ALLOWED
TO EXPIRE.
LAT...LON 4868 11862 4876 11832 4828 11820 4822 11820
4814 11823 4815 11868 4838 11867
TIME...MOT...LOC 2236Z 277DEG 2KT 4825 11836
$$
FRIESThe office that day
Everything else NWS Spokane, WA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 28, 6:17 PM PDT | Flash Flood Warning | OTX | Spokane | 79 min |
Nearby
Flash Flood Warnings in Washington, 2008Every flash flood warning in 2008
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.