Alert archive / Idaho / Flash Flood Warnings in 2007
Flash Flood Warning 2, NWS Pocatello, ID
NWS Pocatello, ID issued this flash flood warning at Jul 17, 2007, 7:45 PM MDT for Custer County, Idaho. It was in force for 2 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
- Jul 17, 2007, 7:45 PM MDT (01:45 UTC)
- Expired
- Jul 17, 2007, 9:45 PM MDT
- In force
- 2 hr
- Issued by
- NWS Pocatello, ID
- Area
- Counties, with a storm outline in the text
County Custer County, ID
The radar
The Pocatello radar (KSFX), 184 km from the middle of the area, began a volume at 01:45 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 00:00Z, 1.8 hours before the alert went out and 189 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
- 11 J/kg
- Mixed-layer CIN
- -163 J/kg
- Mixed-layer LCL
- 3612 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 119 m²/s²
- 0-3 km storm-relative helicity
- 193 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WGUS55 KPIH 180147 FFWPIH IDC037-180345- /O.NEW.KPIH.FF.W.0002.070718T0145Z-070718T0345Z/ /KPIH.0.ER.070718T0145Z.000000T0000Z.070718T0345Z.OO/ BULLETIN - IMMEDIATE BROADCAST REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE POCATELLO ID 745 PM MDT TUE JUL 17 2007 THE NATIONAL WEATHER SERVICE IN POCATELLO HAS ISSUED A * FLASH FLOOD WARNING FOR... CENTRAL CUSTER COUNTY IN CENTRAL IDAHO... * UNTIL 945 PM MDT. * AT 739 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED FLASH FLOODING FROM A THUNDERSTORM OVER THE WARNED AREA. THIS AREA INCLUDES U. S. HIGHWAY 93 SOUTHEAST OF CHALLIS BETWEEN CHALLIS AND THE TOWN OF DICKEY. RAINFALL ESTIMATED IN EXCESS OF ONE INCH IN THIS AREA HAS CAUSED MUDSLIDES IN THE STEEP TERRAIN OF THE LOST RIVER RANGES. * THE STORM PRODUCING FLASH FLOODING WILL OTHERWISE REMAIN OVER MAINLY RURAL AREAS OF THE INDICATED COUNTY. DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY. MOVE TO HIGHER GROUND. LAT...LON 4424 11423 4438 11400 4463 11398 4447 11420 $$ MESSICK
2 follow-up statements
000 WGUS75 KPIH 180249 FFSPIH FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE POCATELLO ID 847 PM MDT TUE JUL 17 2007 IDC037-180345- /O.CON.KPIH.FF.W.0002.000000T0000Z-070718T0345Z/ CUSTER ID- 847 PM MDT TUE JUL 17 2007 ...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 945 PM MDT FOR CENTRAL CUSTER COUNTY... AT 841 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A THUNDERSTORM PRODUCING FLASH FLOODING BETWEEN THE TOWNS OF CHALLIS AND DICKEY...APPROXIMATELY 7 MILES SOUTHEAST OF CHALLIS ON U S ROUTE 93. EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL CREEKS AND STREAMS...COUNTRY ROADS...AS WELL AS FARMLAND ALONG THE BANKS OF CREEKS AND STREAMS. MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. FLOOD WATERS ARE USUALLY DEEPER THAN THEY APPEAR. JUST ONE FOOT OF FLOWING WATER IS POWERFUL ENOUGH TO SWEEP VEHICLES OFF THE ROAD. WHEN ENCOUNTERING FLOODED ROADS MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN. LAT...LON 4424 11423 4438 11400 4463 11398 4447 11420 $$ MESSICK
000 WGUS75 KPIH 180338 FFSPIH FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE POCATELLO ID 936 PM MDT TUE JUL 17 2007 IDC037-180346- /O.EXP.KPIH.FF.W.0002.000000T0000Z-070718T0345Z/ CUSTER ID- 936 PM MDT TUE JUL 17 2007 ...THE FLASH FLOOD WARNING WILL EXPIRE AT 945 PM MDT FOR CENTRAL CUSTER COUNTY... SUFFICIENT TIME HAS PASSED FOR FLOOD WATERS DUE TO THUNDERSTORMS TO DECREASE. THE FLASH FLOOD WARNING WILL BE ALLOWED TO EXPIRE. MUDSLIDES ALONG U S ROUTE 93 BETWEEN CHALLIS AND DICKEY ARE STILL SUBJECT TO OCCURRING. IF YOU ARE PLANNING TRAVEL IN THIS AREA...BE PREPARED FOR POSSIBLE ROAD CLOSURES. LAT...LON 4424 11423 4438 11400 4463 11398 4447 11420 $$ MESSICK
The office that day
Everything else NWS Pocatello, ID issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 17, 7:10 PM MDT | Severe Thunderstorm Warning | PIH | Custer | 31 min |
| Jul 18, 2:40 AM MDT | Red Flag Warning | PIH | 18 hr | |
| Jul 18, 4:36 PM MDT | Fire Weather Watch | PIH | Bannock, Bear Lake, Bonneville, Caribou, Franklin, Oneida and 1 more | 11 hr |
Nearby
Flash Flood Warnings in Idaho, 2007Every flash flood warning in 2007
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.