Alert archive / Idaho / Flash Flood Warnings in 1999

Flash Flood Warning 2, NWS Spokane, WA

August 7, 1999Kootenai County, Idaho

NWS Spokane, WA issued this flash flood warning at Aug 7, 1999, 1:08 AM PDT for Kootenai County, Idaho. It was in force for 23 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Aug 7, 1999, 1:08 AM PDT (08:08 UTC)
Expired
Aug 8, 1999, 12:30 AM PDT
In force
23 hr
Issued by
NWS Spokane, WA
Area
Whole counties

County Kootenai County, ID

The nearest sounding before it

Spokane, WA (KOTX), launched 00:00Z, 8.1 hours before the alert went out and 23 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, WA at 00:00Z on 1999-08-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 251 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, WA at 00:00Z on 1999-08-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 27 square meters per square second.1939Sfc1 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
251 J/kg
Mixed-layer CIN
-133 J/kg
Mixed-layer LCL
2165 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
27 m²/s²
0-3 km storm-relative helicity
121 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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.

NWS Spokane, WA wrote its last area forecast discussion before this flash flood warning went out at Aug 6, 8:30 PM PDT, 4 hours 38 minutes earlier.

Area forecast discussion, Aug 6, 8:30 PM PDT, 4 hours 38 minutes before
EASTERN WASHINGTON AND NORTH IDAHO AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SPOKANE WASHINGTON
830 PM PDT FRI AUG 6 1999

STRONG TO SEVERE THUNDERSTORMS CONTINUE THIS EVENING OVER SOUTHERN
SECTIONS OF THE AREA. WILL HOLD ONTO UPDATES UNTIL THINGS SETTLE DOWN
A BIT LATER.

...THE INFORMATION IN THIS PRODUCT CONCERNING WARNINGS AND FORECASTS
IS VALID ONLY AT THE TIME OF ISSUANCE. THE LATEST WARNING AND
FORECAST INFORMATION WILL BE FOUND IN THE APPROPRIATE PRODUCTS...

GEG 061/080/059/074 4353
CQV 061/082/060/074 4354
S86 061/084/060/073 4454
COE 060/085/060/074 4353
WWP 059/082/058/075 5555
LWS 068/085/063/079 5354
MOS 059/085/058/081
EAT 068/084/062/080 5553

.GEG...NONE.

In the hours before

Local storm report, Aug 6, 8:58 PM PDT, 4 hours 10 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPOKANE WA
858 PM PDT FRI AUG 06 1999

TIME(PDT)  .....CITY LOCATION..... STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0840 PM    TEKOA                     WA    40 MPH TSTM GUST
08/06/99   WHITMAN                         SPOTTER ESTIMATES WINDS
                                           BETWEEN 30-40 MPH WITH
                                           SMALL TREE BRANCHES DOWN.
Local storm report, Aug 6, 8:58 PM PDT, 4 hours 10 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPOKANE WA
858 PM PDT FRI AUG 06 1999

TIME(PDT)  .....CITY LOCATION..... STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0840 PM    TEKOA                     WA    40 MPH TSTM GUST
08/06/99   WHITMAN                         SPOTTER ESTIMATES WINDS
                                           BETWEEN 30-40 MPH WITH
                                           SMALL TREE BRANCHES DOWN.

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 7, 1:08 AM PDTFlash Flood WarningOTXKootenai82 min
Aug 7, 1:08 AM PDTSevere Thunderstorm WarningOTXKootenai82 min
Aug 7, 1:08 AM PDTSevere Thunderstorm WarningOTXKootenai23 hr

Nearby

Flash Flood Warnings in Idaho, 1999Every flash flood warning in 1999

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.