Alert archive / Montana / Flash Flood Warnings in 2004

Flash Flood Warning 2, NWS Missoula, MT

May 27, 2004Missoula County, Montana

NWS Missoula, MT issued this flash flood warning at May 27, 2004, 8:00 PM MDT for Missoula County, Montana. It was in force for 90 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
May 27, 2004, 8:00 PM MDT (02:00 UTC)
Expired
May 27, 2004, 9:30 PM MDT
In force
90 min
Issued by
NWS Missoula, MT
Area
Counties, with a storm outline in the text

County Missoula County, MT

The radar

The Missoula radar (KMSX), 42 km from the middle of the area, began a volume at 02:02 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

Spokane, WA (KOTX), launched 00:00Z, 2.0 hours before the alert went out and 185 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, Spokane, WA at 00:00Z on 2004-05-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 8 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Spokane, WA at 00:00Z on 2004-05-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 21 square meters per square second.1939587897Sfc1 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
8 J/kg
Mixed-layer CIN
-11 J/kg
Mixed-layer LCL
1606 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
21 m²/s²
0-3 km storm-relative helicity
96 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.

000 
WGUS55 KMSO 280202
FFWMSO
MTC063-280330-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MISSOULA MT
800 PM MDT THU MAY 27 2004

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  THE OBRIEN CREEK AND LYON GULCH BURN AREA IN 
  SOUTHWESTERN MISSOULA COUNTY IN WEST CENTRAL MONTANA

* UNTIL 0930 PM MDT

* AT 800 PM MDT...DOPPLER RADAR INDICATED HEAVY RAIN FROM A   
  THUNDERSTORM 15 MILES SOUTHWEST OF OBRIEN CREEK AND LYON GULCH 
  BURN AREA...OR ABOUT 24 MILES SOUTHWEST OF MISSOULA...MOVING 
  NORTHEAST AT 20 MPH.

* THE THUNDERSTORM PRODUCING HEAVY RAIN WILL BE...  OVER OBRIEN
  CREEK AND LYON GULCH BURN AREA BY 825 PM MDT

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 4674 11454 4662 11444 4684 11404 4692 11428

$$

Nearby

Flash Flood Warnings in Montana, 2004Every flash flood warning in 2004

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.