Alert archive / Washington / Flash Flood Warnings in 1993

Flash Flood Warning 2, NWS Spokane, WA

July 14, 19934 counties in Washington

NWS Spokane, WA issued this flash flood warning at Jul 14, 1993, 3:45 PM PDT for 4 counties in Washington. It was in force for 60 min.

The area

The counties it named.

The facts

Issued
Jul 14, 1993, 3:45 PM PDT (22:45 UTC)
Expired
Jul 14, 1993, 4:45 PM PDT
In force
60 min
Issued by
NWS Spokane, WA
Area
Whole counties

Counties Adams County, WA, Grant County, WA, Lincoln County, WA, Spokane County, WA

The nearest sounding before it

Spokane Intl Airport, WA (KGEG), launched 12:00Z, 10.8 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.

Skew-T log-pSkew-T log-p diagram, Spokane Intl Airport, WA at 12:00Z on 1993-07-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 13 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Spokane Intl Airport, WA at 12:00Z on 1993-07-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 23 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
13 J/kg
Mixed-layer CIN
-27 J/kg
Mixed-layer LCL
742 m above ground
0-6 km bulk shear
8 kt
0-1 km storm-relative helicity
23 m²/s²
0-3 km storm-relative helicity
-29 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KGEG 142245
FFWGEG
IDC009-055-WAC025-001-043-063-142345-
 
BULLETIN - EBS ACTIVATION REQUESTED
SEVERE THUNDERSTORM AND FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SPOKANE WA
345 PM PDT WED JUL 14 1993
 
THE NATIONAL WEATHER SERVICE IN SPOKANE HAS ISSUED A
SEVERE THUNDERSTORM AND FLASH FLOOD WARNING
EFFECTIVE UNTIL  445 PM PDT
FOR PEOPLE IN THE FOLLOWING LOCATION                        S...
 
IN NORTH IDAHO
 
   ...BENEWAH COUNTY...KOOTENAI COUNTY
 
 
IN EAST WASHINGTON
 
   ...EASTERN GRANT COUNTY
 
IN NORTHEAST WASHINGTON
 
   ...ADAMS COUNTY...LINCOLN COUNTY...SPOKANE COUNTY
 
NEAR SPRAGUE AVENUE IN EASTERN SPOKANE NEARLY TWO FEET OF WATER OVER
ROADWAYS...NUMEROUS TRAFFIC LIGHTS ARE INOPERATIVE.
 
NEAR CENTRAL WASHINGTON NEAR ALMIRA...LARGE HAIL AND HEAVY RAIN WAS
REPORTED WITH SOME FLOODING OVER ROADWAYS.
 
HALF INCH OF HAIL COVERS THE GROUND NEAR KELLER FERRY.
 
 
WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE A
STRONG BUILDING.  DO NOT STAND BY WINDOWS.  DON'T USE TELEPHONES
OR ELECTRICAL APPLIANCES UNLESS IN AN EMERGENCY UNTIL THE STORM
HAS PASSED.  MOTORISTS SHOULD NOT DRIVE INTO LOW WATER CROSSINGS.
 
 
 
&

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, Jul 14, 9:56 AM PDT, 5 hours 49 minutes before
IDZ008-141800-

SPECIAL WEATHER STATEMENT...TEST
NATIONAL WEATHER SERVICE LEWISTON ID
956 AM PDT WED JUL 14 1993

TEST....TEST...THIS IS A TEST!

NNNN
Special weather statement, Jul 14, 10:10 AM PDT, 5 hours 35 minutes before
IDZ008-141815-

SPECIAL WEATHER STATEMENT...TESTING
NATIONAL WEATHER SERVICE LEWISTON ID
1010 AM PDT WED JUL 14 1993

THIS IS A TEST....TESTING.....THIS IS A TEST

TEST

NNNN
Special weather statement, Jul 14, 12:16 PM PDT, 3 hours 29 minutes before
WAZ006-009-142300-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPOKANE WA
1200 PM PDT WED JUL 14 1993

...THUNDERSTORMS DEVELOPING OVER NORTHEAST WASHINGTON AND NORTHERN
IDAHO...

LIGHTNING DETECTION EQUIPMENT AND OBSERVATIONS INDICATE THAT
THUNDERSTORMS ARE ONCE AGAIN FORMING OVER NORTHEAST WASHINGTON.  AT
NOON...THUNDERSTORMS WERE OCCURRING THORUGHOUT PORTIONS OF FERRY...
STEVENS...AND SPOKANE COUNTY.

SOME OF THESE THUNDERSHOWERS WILL CONTAIN LOCALLY HEAVY RAIN AND SMALL
HAIL.  MOTORISTS SHOULD BE ALERT FOR FLOODING AND DEBRIS ON ROADWAYS.
DO NOT ATTEMPT TO CROSS FLOODED ROADWAYS.

PEOPLE OUTSIDE SHOULD SEEK SHELTER IMMEDIATELY WHEN THUNDERSTORMS
ARE IN THE VICINITY.  DO NOT BfECOME A LIGHTNING TARGET.

THESE THUNDERSTORMS ARE EXPECTED TO CONTINUE THROUGH THE AFTERNOON
INTO THE EVENING HOURS.

STAY TUNED TO NOAA WEATHER RADIO OR YOUR FAVORITE NEWS SOURCE FOR
FURTHER WEATHER UPDATES.

FRISBIE
Special weather statement, Jul 14, 2:33 PM PDT, 1 hour 12 minutes before
WAZ006-009-142300-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPOKANE WA
125 PM PDT WED JUL 14 1993

...THUNDERSTORMS WITH HAIL OVER NORTHERN SPOKANE COUNTY...

ONE HALF INCH SIZED HAIL HAS BEEN REPORTED OVER NORTHERN PORTION
OF SPOKANE...AROUND THE WHITWORTH COLLEGE AREA.  PEA SIZED HAIL
ACCUMULATED NEARLY ONE INCH DEEP ON HIGHWAY 2...JUST NORTH OF THE
SPOKANE CITY LIMITS.

HEAVY RAIN IS ALSO OCCURRING THROUGHOUT PORTIONS OF NORTHEAST
WASHINGTON INCLUDING NORTHERN SPOKANE COUNTY.  TWO-THIRDS OF AN ICNH
IN ONE HOUR HAS BEEN OBSERVED OVER THE NORTHERN SECTION OF SPOKANE.

PEOPLE OUTSIDE SHOULD AVOID LOW LYING AREAS AND SEEK HIGHER GROUND.
A FLASH FLOOD WATCH IS IN EFFECT FOR ALL OF EASTERN WASHINGTON
THROUGH 900 PM TONIGHT.
THUNDERSTORMS WILL CONTINUE THROUGH THE EVENING WITH OCCASIONAL
HEAVY RAIN.

NOT ONLY SHOULD MOTORISTS BE ALERT FOR FLOODING AND DEBRIS ON
HIGHWAYS...HAIL MAY CAUSE SLIPPERY CONDITIONS ON PAVEMENTS.

STAY TUNED TO NOAA WEATHER RADIO OR YOUR FAVORITE NEWS SOURCE FOR
FURTHER WEATHER UPDATES.

FRISBIE

The office that day

Everything else NWS Spokane, WA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 14, 2:47 PM PDTFlash Flood WarningOTXSpokane58 min
Jul 14, 2:47 PM PDTSevere Thunderstorm WarningOTXSpokane58 min
Jul 14, 3:45 PM PDTSevere Thunderstorm WarningOTXAdams, Lincoln60 min
Jul 14, 3:45 PM PDTSevere Thunderstorm WarningOTXSpokane60 min

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.