Alert archive / Idaho / Flash Flood Warnings in 1998
Flash Flood Warning 10, NWS Boise, ID
NWS Boise, ID issued this flash flood warning at Jun 12, 1998, 6:46 PM MDT for Washington County, Idaho. It was in force for 119 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jun 12, 1998, 6:46 PM MDT (00:46 UTC)
- Expired
- Jun 12, 1998, 8:45 PM MDT
- In force
- 119 min
- Issued by
- NWS Boise, ID
- Area
- Whole counties
County Washington County, ID
The nearest sounding before it
Boise Airport, ID (KBOI), launched 00:00Z, 0.8 hours before the alert went out and 109 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
- 156 J/kg
- Mixed-layer CIN
- -101 J/kg
- Mixed-layer LCL
- 1860 m above ground
- 0-6 km bulk shear
- 18 kt
- 0-1 km storm-relative helicity
- -5 m²/s²
- 0-3 km storm-relative helicity
- 29 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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.
In the hours before
Special weather statement, Jun 12, 3:57 PM MDT, 2 hours 49 minutes before
IDZ012>014-ORZ021-130000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BOISE ID 357 PM MDT FRI JUN 12 1998 ...FUNNEL CLOUDS POSSIBLE WITH THUNDERSTORMS TODAY... A CITIZEN ONE MILE SOUTH OF EMMETT OBSERVED A FUNNEL CLOUD OVER THE HILLS SOUTH OF EMMETT. THE FUNNEL RETREATED BACK INTO THE CLOUD...BUT FUNNEL CLOUDS MAY BE OBSERVED WITH THUNDERSTORMS THROUGHOUT THIS EVENING. FUNNEL CLOUDS NORMALLY DO NOT PRESENT A THREAT TO LIFE AND PROPERTY. HOWEVER...FUNNEL CLOUDS CAN OCCASIONALLY TOUCH DOWN AS WEAK TORNADOES. IF THREATENING WEATHER DOES APPROACH YOUR AREA...SEEK SHELTER IMMEDIATELY. DS/NWSFO
Special weather statement, Jun 12, 3:57 PM MDT, 2 hours 49 minutes before
IDZ012>014-ORZ021-130000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BOISE ID 357 PM MDT FRI JUN 12 1998 ...FUNNEL CLOUDS POSSIBLE WITH THUNDERSTORMS TODAY... A CITIZEN ONE MILE SOUTH OF EMMETT OBSERVED A FUNNEL CLOUD OVER THE HILLS SOUTH OF EMMETT. THE FUNNEL RETREATED BACK INTO THE CLOUD...BUT FUNNEL CLOUDS MAY BE OBSERVED WITH THUNDERSTORMS THROUGHOUT THIS EVENING. FUNNEL CLOUDS NORMALLY DO NOT PRESENT A THREAT TO LIFE AND PROPERTY. HOWEVER...FUNNEL CLOUDS CAN OCCASIONALLY TOUCH DOWN AS WEAK TORNADOES. IF THREATENING WEATHER DOES APPROACH YOUR AREA...SEEK SHELTER IMMEDIATELY. DS/NWSFO
Local storm report, Jun 12, 5:28 PM MDT, 1 hour 18 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BOISE IDAHO
528 PM MDT FRI JUN 12 1998
TIME(MDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0246 PM IDAHO CITY ID
06/12/98 BOISE 0.50 INCHES OF RAIN IN 15
MINUTES
0330 PM BOISE ID FLOODING
06/12/98 ADA WATER COVERING ROAD IN
MANY CITY LOCATIONS
0333 PM 30 S JUNTURA OR
06/12/98 MALHEUR 0.87 INCHES OF RAIN IN ONE
HOUR AT RED BUTTE RAWS
0340 PM BOISE TERMINAL ARPT ID
06/12/98 ADA 0.42 INCHES RAIN IN 18
MINUTES
0350 PM 5 S EMMETT ID
06/12/98 ADA FUNNEL CLOUD OBSERVED;
RETREATED INTO CLOUD
0400 PM JUNTURA OR .75 INCH HAIL
06/12/98 MALHEUR 6 INCHES DEPTH OF
PENNY-SIZED HAIL
0410 PM JUNTURA OR FLOODING
06/12/98 MALHEUR US RTE 20 CLOSED DUE TO
FLOODING
0448 PM 8 S EMMETT ID
06/12/98 ADA SPOTTER REPORTED RAINFALL
RATE OF 2.0 INCHES PER
HOUR.
0450 PM FRENCHGLEN OR FLOODING
06/12/98 HARNEY 2-3 INCHES OF WATER
COVERING STATE HIGHWAY 205Local storm report, Jun 12, 5:28 PM MDT, 1 hour 18 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BOISE IDAHO
528 PM MDT FRI JUN 12 1998
TIME(MDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0246 PM IDAHO CITY ID
06/12/98 BOISE 0.50 INCHES OF RAIN IN 15
MINUTES
0330 PM BOISE ID FLOODING
06/12/98 ADA WATER COVERING ROAD IN
MANY CITY LOCATIONS
0333 PM 30 S JUNTURA OR
06/12/98 MALHEUR 0.87 INCHES OF RAIN IN ONE
HOUR AT RED BUTTE RAWS
0340 PM BOISE TERMINAL ARPT ID
06/12/98 ADA 0.42 INCHES RAIN IN 18
MINUTES
0350 PM 5 S EMMETT ID
06/12/98 ADA FUNNEL CLOUD OBSERVED;
RETREATED INTO CLOUD
0400 PM JUNTURA OR .75 INCH HAIL
06/12/98 MALHEUR 6 INCHES DEPTH OF
PENNY-SIZED HAIL
0410 PM JUNTURA OR FLOODING
06/12/98 MALHEUR US RTE 20 CLOSED DUE TO
FLOODING
0448 PM 8 S EMMETT ID
06/12/98 ADA SPOTTER REPORTED RAINFALL
RATE OF 2.0 INCHES PER
HOUR.
0450 PM FRENCHGLEN OR FLOODING
06/12/98 HARNEY 2-3 INCHES OF WATER
COVERING STATE HIGHWAY 205The office that day
Everything else NWS Boise, ID issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 12, 6:31 PM MDT | Flash Flood Warning | BOI | Baker | 2 hr |
Nearby
Flash Flood Warnings in Idaho, 1998Every flash flood warning in 1998
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.