Alert archive / Washington / Flash Flood Warnings in 1993
Flash Flood Warning 2, NWS Seattle, WA
NWS Seattle, WA issued this flash flood warning at May 31, 1993, 3:46 PM PDT for Douglas County, Washington. It was in force for 119 min.
The area
The counties it named.
The facts
- Issued
- May 31, 1993, 3:46 PM PDT (22:46 UTC)
- Expired
- May 31, 1993, 5:45 PM PDT
- In force
- 119 min
- Issued by
- NWS Seattle, WA
- Area
- Whole counties
County Douglas County, WA
The nearest sounding before it
Spokane Intl Airport, WA (KGEG), launched 12:00Z, 10.8 hours before the alert went out and 165 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
- 1796 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- 206 m²/s²
- 0-3 km storm-relative helicity
- 266 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KSEA 312252 FFWSEA WAC017-010045- BULLETIN - EBS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE SEATTLE WA 346 PM PDT MON MAY 31 1993 THE NATIONAL WEATHER SERVICE IN SEATTLE HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 545 PM PDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN NORTH CENTRAL WASHINGTON ...WESTERN DOUGLAS COUNTY THE DEPARTMENT OF EMERGENCY MANAGEMENT REPORTS EXTENSIVE URBAN FLOODING WITH NUMEROUS ROAD CLOSURES IN WESTERN DOUGLAS COUNTY. WEATHER SPOTTERS NEAR EAST WENATCHEE HAVE REPORTED ONE HALF TO ONE AND ONE HALF INCHES OF RAIN DURING THE PAST TWO HOURS RESULTING IN RAPID RUNOFF INTO DRY WASHES AND CANYONS. A FLASH FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR IS IMMINENT. MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS BRIDGES...DIPS...OR LOW SPOTS IF WATER COVERS THE ROADWAY. NEVER TRY TO CROSS A FLOWING STREAM...EVEN A SMALL ONE...ON FOOT. TO ESCAPE RISING WATER MOVE UP TO HIGHER GROUND. & SCHNEIDER
What forecasters said that day
The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
In the hours before
Special weather statement, May 31, 3:32 PM PDT, 14 minutes before
WAC007-010030- BULLETIN - EBS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE SEATTLE WA 323 PM PDT MON MAY 31 1993 THE NATIONAL WEATHER SERVICE IN SEATTLE HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 530 PM PDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN NORTH CENTRAL WASHINGTON ...SOUTHERN CHELAN COUNTY REPORTS FROM WEATHER SPOTTERS AND THE CHELAN COUNTY SHERIFF INDICATE THAT FLOODING IS OCCURING IN AND AROUND THE CITY OF WENATCHEE. FLOODING HAS ALSO BEEN REPORTED ALONG HIGHWAY 97 NORTH OF HIGHWAY 2. ONE HALF TO ONE AND ONE HALF INCHES OF RAIN HAS FALLEN IN SOUTHERN CHELAN COUNTY DURING THE PAST SEVERAL HOURS RESULTING IN RAPID RUNOFF INTO DRY WASHES AND CANYONS. A FLASH FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR IS IMMINENT. MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS BRIDGES...DIPS...OR LOW SPOTS IF WATER COVERS THE ROADWAY. NEVER TRY TO CROSS A FLOWING STRrEAM...EVEN A SMALL ONE...ON FOOT. TO ESCAPE RISING WATER MOVE UP TO HIGHER GROUND. & SCHNEIDER
The office that day
Everything else NWS Seattle, WA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 31, 3:23 PM PDT | Flash Flood Warning | SEW | Chelan | 2 hr |
| May 31, 4:55 PM PDT | Flash Flood Warning | SEW | Chelan, Douglas | 2 hr |
Nearby
Flash Flood Warnings in Washington, 1993Every flash flood warning in 1993
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.