Alert archive / Idaho / Flash Flood Warnings in 2012
Flash Flood Warning 1, NWS Pocatello, ID
NWS Pocatello, ID issued this flash flood warning at Jul 14, 2012, 3:33 PM MDT for Butte County, Clark 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 14, 2012, 3:33 PM MDT (21:33 UTC)
- Expired
- Jul 14, 2012, 5:40 PM MDT
- In force
- 2 hr
- Issued by
- NWS Pocatello, ID
- Area
- Storm-based polygon
- Flood severity
- None
Counties Butte County, ID, Clark County, ID
The radar
The Pocatello radar (KSFX), 104 km from the middle of the area, began a volume at 21:36 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, 9.6 hours before the alert went out and 272 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
- 92 J/kg
- Mixed-layer CIN
- -326 J/kg
- Mixed-layer LCL
- 1845 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- 75 m²/s²
- 0-3 km storm-relative helicity
- 71 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.0
The text
As transmitted, in the capitals the NWS used until 2016.
257 WGUS55 KPIH 142133 FFWPIH IDC023-033-150030- /O.NEW.KPIH.FF.W.0001.120714T2133Z-120715T0030Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE POCATELLO ID 333 PM MDT SAT JUL 14 2012 THE NATIONAL WEATHER SERVICE IN POCATELLO HAS ISSUED A * FLASH FLOOD WARNING FOR... EAST CENTRAL BUTTE COUNTY IN EAST CENTRAL IDAHO... SOUTHWESTERN CLARK COUNTY IN EASTERN IDAHO... * UNTIL 630 PM MDT * AT 327 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED FLASH FLOODING FROM A THUNDERSTORM OVER THE WARNED AREA. * LOCATIONS THAT COULD BE AFFECTED INCLUDE... RURAL SOUTHWESTERN CLARK COUNTY... BIRCH CREEK... AREAS WEST OF STATE HIGHWAY 28 INCLUDING MAHOGANY BUTTE PRECAUTIONARY/PREPAREDNESS ACTIONS... 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. 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 4410 11292 4406 11278 4393 11280 4396 11295 $$ HINSBERGER
2 follow-up statements
685 WGUS75 KPIH 142236 FFSPIH FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE POCATELLO ID 436 PM MDT SAT JUL 14 2012 IDC023-033-150030- /O.CON.KPIH.FF.W.0001.000000T0000Z-120715T0030Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ CLARK ID-BUTTE ID- 436 PM MDT SAT JUL 14 2012 ...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 630 PM MDT FOR NORTHEASTERN BUTTE AND SOUTHWESTERN CLARK COUNTIES... AT 427 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A THUNDERSTORM PRODUCING FLASH FLOODING OVER THE WARNED AREA. ESTIMATES FROM RADAR SHOW THE AREA RECEIVED 2 TO 2.5 INCHES OF RAINFALL OVER THE LAST THREE HOURS. THIS THUNDERSTORM WITH EXCESSIVE RAIN IS WEAKENING...BUT ADDITIONAL MODERATE RAINFALL CAN BE EXPECTED THROUGH EARLY THIS EVENING. PRECAUTIONARY/PREPAREDNESS ACTIONS... EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL CREEKS AND STREAMS...COUNTRY ROADS...AS WELL AS FARMLAND ALONG THE BANKS OF CREEKS AND STREAMS. DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY. MOVE TO HIGHER GROUND. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 PM MDT SATURDAY EVENING FOR EAST CENTRAL IDAHO. && LAT...LON 4410 11292 4406 11278 4393 11280 4396 11295 $$ HINSBERGER
257 WGUS75 KPIH 142340 FFSPIH FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE POCATELLO ID 540 PM MDT SAT JUL 14 2012 IDC023-033-142350- /O.CAN.KPIH.FF.W.0001.000000T0000Z-120715T0030Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ CLARK ID-BUTTE ID- 540 PM MDT SAT JUL 14 2012 ...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR NORTHEASTERN BUTTE AND SOUTHWESTERN CLARK COUNTIES... A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 PM MDT SATURDAY EVENING FOR EAST CENTRAL IDAHO. LAT...LON 4410 11292 4406 11278 4393 11280 4396 11295 $$ HINSBERGER
The office that day
Everything else NWS Pocatello, ID issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 14, 12:47 PM MDT | Special Weather Statement | PIH | Cassia, Oneida, Power | 88 min |
| Jul 14, 1:57 PM MDT | Severe Thunderstorm Warning | PIH | Blaine, Butte, Minidoka, Power | 21 min |
| Jul 14, 2:39 PM MDT | Special Weather Statement | PIH | Bingham, Blaine, Butte, Jefferson | 36 min |
| Jul 14, 3:06 PM MDT | Special Weather Statement | PIH | Bonneville | 39 min |
| Jul 14, 3:39 PM MDT | Flash Flood Warning | PIH | Bonneville, Madison | 2 hr |
| Jul 14, 4:41 PM MDT | Special Weather Statement | PIH | Bear Lake | 94 min |
| Jul 14, 5:21 PM MDT | Special Weather Statement | PIH | Madison | 39 min |
Nearby
Flash Flood Warnings in Idaho, 2012Every flash flood warning in 2012
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.