Alert archive / Idaho / Flash Flood Warnings in 2014
Flash Flood Warning 21, NWS Boise, ID
NWS Boise, ID issued this flash flood warning at Aug 9, 2014, 1:42 PM MDT for Boise County, Camas County, Elmore County, Idaho. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Aug 9, 2014, 1:42 PM MDT (19:42 UTC)
- Expired
- Aug 9, 2014, 4:45 PM MDT
- In force
- 3 hr
- Issued by
- NWS Boise, ID
- Area
- Storm-based polygon
- Flood severity
- None
Counties Boise County, ID, Camas County, ID, Elmore County, ID
The radar
The Boise radar (KCBX), 107 km from the middle of the area, began a volume at 19:45 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
Boise Airport, ID (KBOI), launched 12:00Z, 7.7 hours before the alert went out and 101 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
- 1 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2066 m above ground
- 0-6 km bulk shear
- 9 kt
- 0-1 km storm-relative helicity
- -9 m²/s²
- 0-3 km storm-relative helicity
- 38 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
261
WGUS55 KBOI 091942
FFWBOI
IDC015-025-039-092245-
/O.NEW.KBOI.FF.W.0021.140809T1942Z-140809T2245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BOISE ID
142 PM MDT SAT AUG 9 2014
THE NATIONAL WEATHER SERVICE IN BOISE HAS ISSUED A
* FLASH FLOOD WARNING FOR...
EAST CENTRAL BOISE COUNTY IN WEST CENTRAL IDAHO...
NORTHEASTERN ELMORE COUNTY IN SOUTHWEST IDAHO...
NORTHWESTERN CAMAS COUNTY IN CENTRAL IDAHO...
* UNTIL 445 PM MDT
* AT 141 PM MDT...DOPPLER RADAR INDICATED A THUNDERSTORM PRODUCING
HEAVY RAIN ACROSS THE WARNED AREA. FLASH FLOODING IS EXPECTED TO
BEGIN SHORTLY.
* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
ATLANTA...JAMES CREEK SUMMIT...GUNSIGHT PEAK...DUTCH CREEK GUARD
STATION...ROCKY BAR AND PARADISE PEAK.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
MOVE TO HIGHER GROUND NOW. ACT QUICKLY TO PROTECT YOUR LIFE.
&&
LAT...LON 4369 11472 4364 11536 4378 11551 4402 11509
4392 11498 4391 11499 4388 11497 4386 11498
4382 11487 4379 11485 4380 11484
$$
DG2 follow-up statements
372
WGUS75 KBOI 092236
FFSBOI
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BOISE ID
436 PM MDT SAT AUG 9 2014
IDC015-025-039-092245-
/O.CON.KBOI.FF.W.0021.000000T0000Z-140809T2245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BOISE ID-ELMORE ID-CAMAS ID-
436 PM MDT SAT AUG 9 2014
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 445 PM MDT FOR
EAST CENTRAL BOISE...NORTHEASTERN ELMORE AND NORTHWESTERN CAMAS
COUNTIES...
AT 435 PM MDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING
HEAVY RAIN ACROSS NORTHEAST ELMORE COUNTY. FLASH FLOODING IS LIKELY
ACROSS NORTHEAST ELMORE COUNTY.
ADDITIONAL RAINFALL AMOUNTS OF ONE QUARTER INCH TO ONE HALF AN
INCH IS POSSIBLE IN THE WARNED AREA.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
STAY AWAY OR BE SWEPT AWAY. RIVER BANKS AND CULVERTS CAN BECOME
UNSTABLE AND UNSAFE.
&&
LAT...LON 4369 11472 4364 11536 4378 11551 4402 11509
4392 11498 4391 11499 4388 11497 4386 11498
4382 11487 4379 11485 4380 11484
$$
VM701
WGUS75 KBOI 092246
FFSBOI
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BOISE ID
446 PM MDT SAT AUG 9 2014
IDC015-025-039-092256-
/O.EXP.KBOI.FF.W.0021.000000T0000Z-140809T2245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BOISE ID-ELMORE ID-CAMAS ID-
446 PM MDT SAT AUG 9 2014
...THE FLASH FLOOD WARNING FOR EAST CENTRAL BOISE...NORTHEASTERN
ELMORE AND NORTHWESTERN CAMAS COUNTIES HAS EXPIRED...
THE HEAVY RAIN HAS ENDED FOR NOW. WATER MAY CONTINUE TO FLOW AT OR
ABOVE BANK FULL THROUGH 545 PM.
LAT...LON 4369 11472 4364 11536 4378 11551 4402 11509
4392 11498 4391 11499 4388 11497 4386 11498
4382 11487 4379 11485 4380 11484
$$
VMThe office that day
Everything else NWS Boise, ID issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 8, 7:43 PM MDT | Special Weather Statement | BOI | Elmore | 47 min |
| Aug 9, 2:53 PM MDT | Flash Flood Warning | BOI | Boise | 3 hr |
| Aug 9, 4:24 PM MDT | Special Weather Statement | BOI | Boise | 81 min |
| Aug 9, 5:09 PM MDT | Special Weather Statement | BOI | Boise | 66 min |
Nearby
Flash Flood Warnings in Idaho, 2014Every flash flood warning in 2014
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.