Alert archive / Idaho / Flash Flood Warnings in 2013

Flash Flood Warning 2, NWS Missoula, MT

June 29, 2013Lemhi County, Idaho

NWS Missoula, MT issued this flash flood warning at Jun 29, 2013, 6:59 PM MDT for Lemhi 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
Jun 29, 2013, 6:59 PM MDT (00:59 UTC)
Expired
Jun 29, 2013, 9:00 PM MDT
In force
2 hr
Issued by
NWS Missoula, MT
Area
Storm-based polygon
Flood severity
None

County Lemhi County, ID

The radar

The Missoula radar (KMSX), 195 km from the middle of the area, began a volume at 01:02 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, 1.0 hours before the alert went out and 235 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.

Skew-T log-pSkew-T log-p diagram, Boise Airport, ID at 00:00Z on 2013-06-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 32 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Boise Airport, ID at 00:00Z on 2013-06-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 7 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
32 J/kg
Mixed-layer CIN
-274 J/kg
Mixed-layer LCL
3821 m above ground
0-6 km bulk shear
12 kt
0-1 km storm-relative helicity
7 m²/s²
0-3 km storm-relative helicity
52 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

966 
WGUS55 KMSO 300059
FFWMSO
IDC059-300300-
/O.NEW.KMSO.FF.W.0002.130630T0059Z-130630T0300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MISSOULA MT
659 PM MDT SAT JUN 29 2013

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  COLSON CREEK IN THE MUSTANG BURN...OWL CREEK IN THE MUSTANG BURN IN
  NORTHWESTERN LEMHI COUNTY IN EAST CENTRAL IDAHO...

* UNTIL 900 PM MDT.

* AT 648 PM MDT...DOPPLER RADAR INDICATED POSSIBLE FLASH FLOODING   
  OVER THE WARNED AREA.

* LOCATIONS IMPACTED INCLUDE...COLSON CREEK IN THE MUSTANG BURN AND
  OWL CREEK IN THE MUSTANG BURN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLASH FLOOD WARNING MEANS THAT FLOODING...MUD AND DEBRIS FLOWS ARE
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.

&&

LAT...LON 4530 11459 4534 11468 4540 11473 4542 11473
      4543 11437 4529 11433 4525 11465

$$
1 follow-up statement
597 
WGUS75 KMSO 300255
FFSMSO

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MISSOULA MT
855 PM MDT SAT JUN 29 2013

IDC059-300305-
/O.EXP.KMSO.FF.W.0002.000000T0000Z-130630T0300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
LEMHI ID-
855 PM MDT SAT JUN 29 2013

...THE FLASH FLOOD WARNING WILL EXPIRE AT 900 PM MDT/800 PM PDT/ FOR
NORTHWESTERN LEMHI COUNTY...

LAT...LON 4530 11459 4534 11468 4540 11473 4542 11473
      4543 11437 4529 11433 4525 11465

$$

The office that day

Everything else NWS Missoula, MT issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 29, 7:48 PM MDTFlash Flood WarningMSOLemhi87 min

Nearby

Flash Flood Warnings in Idaho, 2013Every flash flood warning in 2013

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.