Alert archive / Idaho / Flash Flood Warnings in 2011
Flash Flood Warning 2, NWS Pocatello, ID
NWS Pocatello, ID issued this flash flood warning at Jun 7, 2011, 9:06 PM MDT for Fremont County, Idaho. It was in force for 4 hr. 2 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Jun 7, 2011, 9:06 PM MDT (03:06 UTC)
- Expired
- Jun 8, 2011, 1:00 AM MDT
- In force
- 4 hr
- Issued by
- NWS Pocatello, ID
- Area
- Storm-based polygon
- Flood severity
- None
County Fremont County, ID
The radar
The Pocatello radar (KSFX), 149 km from the middle of the area, began a volume at 03:09 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 7, 9:16 PM MDT | HEAVY RAIN 0.6 | Se Ashton, ID | 0.60 INCHES OF RAINFALL IN THE PAST HOUR. LOCALIZED FLOODING REPORTED IN ASHTON AND MARYSVILLE. |
| Jun 7, 10:45 PM MDT | FLASH FLOOD | Ashton, ID | ROCKS AND TREES ACROSS HIGHWAY 20/47 NEAR ASHTON/MARYSVILLE. FARM FIELDS FLOODED. SPUD CELLAR NORTH OF ASHTON HAS 3 FEET OF WATER IN IT. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Riverton, WY (KRIW), launched 00:00Z, 3.1 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2717 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- -17 m²/s²
- 0-3 km storm-relative helicity
- 32 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
943 WGUS55 KPIH 080306 FFWPIH IDC043-080500- /O.NEW.KPIH.FF.W.0002.110608T0306Z-110608T0500Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE POCATELLO 906 PM MDT TUE JUN 7 2011 THE NATIONAL WEATHER SERVICE IN POCATELLO HAS ISSUED A * FLASH FLOOD WARNING FOR... CENTRAL FREMONT COUNTY IN EASTERN IDAHO... THIS INCLUDES THE CITIES OF...MARYSVILLE...ASHTON... * UNTIL 1100 PM MDT * AT 900 PM MDT...A TRAINED WEATHER SPOTTER REPORTED OVER 0.50 INCHES OF RAINFALL FROM A THUNDERSTORM IN ASHTON DURING THE LAST 30 TO 45 MINUTES WHICH HAS PRODUCED FLASH FLOODING IN AND NEAR ASHTON. LOCATIONS IMPACTED INCLUDE...ASHTON AND MARYSVILLE. PRECAUTIONARY/PREPAREDNESS ACTIONS... EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS...STREAMS AND OTHER LOW LYING AREAS ARE SUBJECT TO FLOODING. A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING. IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY. RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY AUTOMOBILE. && LAT...LON 4419 11141 4410 11132 4398 11153 4407 11164 $$ HUSTON
3 follow-up statements
114 WGUS75 KPIH 080433 FFSPIH FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE POCATELLO 1033 PM MDT TUE JUN 7 2011 IDC043-080500- /O.CON.KPIH.FF.W.0002.000000T0000Z-110608T0500Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ FREMONT ID- 1033 PM MDT TUE JUN 7 2011 ...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1100 PM MDT FOR CENTRAL FREMONT COUNTY... AT 1024 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THAT SHOWERS HAD DIMINISHED OVER THE WARNED AREA WHILE SPOTTERS CONTINUED TO REPORT PONDING OF WATER WITHIN ASHTON. PRECAUTIONARY/PREPAREDNESS ACTIONS... EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS...STREAMS AND OTHER LOW LYING AREAS ARE SUBJECT TO FLOODING. && LAT...LON 4419 11141 4410 11132 4398 11153 4407 11164 $$ HUSTON
208 WGUS55 KPIH 080456 FFWPIH IDC043-080700- /O.EXT.KPIH.FF.W.0002.000000T0000Z-110608T0700Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE POCATELLO 1056 PM MDT TUE JUN 7 2011 THE NATIONAL WEATHER SERVICE IN POCATELLO HAS EXTENDED THE * FLASH FLOOD WARNING FOR... CENTRAL FREMONT COUNTY IN EASTERN IDAHO... THIS INCLUDES THE CITIES OF...MARYSVILLE...ASHTON... * UNTIL 100 AM MDT * AT 1048 PM MDT...TRAINED WEATHER SPOTTERS REPORTED ROCKS AND TREES OVER THE ROAD ON HIGHWAY 47...FLOODED FIELDS AND SPUD CELLARS. RAINFALL HAS DIMINISHED OVER THE PAST HOUR BUT THE THREAT OF FLOODING WILL CONTINUE UNTIL 100 AM MDT. PRECAUTIONARY/PREPAREDNESS ACTIONS... EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS...STREAMS AND OTHER LOW LYING AREAS ARE SUBJECT TO FLOODING. && LAT...LON 4419 11141 4410 11132 4398 11153 4407 11164 $$ HUSTON
307 WGUS75 KPIH 080706 FFSPIH FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE POCATELLO 106 AM MDT WED JUN 8 2011 IDC043-080713- /O.EXP.KPIH.FF.W.0002.000000T0000Z-110608T0700Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ FREMONT ID- 106 AM MDT WED JUN 8 2011 ...THE FLASH FLOOD WARNING HAS EXPIRED FOR CENTRAL FREMONT COUNTY... THOUGH RAINFALL HAS DIMINISHED ACROSS THE AREA...EXPECT HIGH FLOWS IN STREAMS DUE TO PREVIOUS RAIN FALL THIS EVENING. LAT...LON 4419 11141 4410 11132 4398 11153 4407 11164 $$ TW
The office that day
Everything else NWS Pocatello, ID issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 8, 10:56 AM MDT | Special Weather Statement | PIH | Clark | 49 min |
| Jun 8, 11:18 AM MDT | Special Weather Statement | PIH | Bingham, Jefferson | 42 min |
| Jun 8, 11:58 AM MDT | Special Weather Statement | PIH | Bingham, Clark | 47 min |
| Jun 8, 3:28 PM MDT | Special Weather Statement | PIH | Bannock, Cassia, Minidoka, Oneida, Power | 92 min |
| Jun 8, 4:10 PM MDT | Special Weather Statement | PIH | Franklin | 50 min |
| Jun 8, 4:30 PM MDT | Special Weather Statement | PIH | Bear Lake, Franklin | 45 min |
| Jun 8, 5:01 PM MDT | Special Weather Statement | PIH | Bear Lake | 44 min |
Nearby
Flash Flood Warnings in Idaho, 2011Every flash flood warning in 2011
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.