Alert archive / Montana / Flash Flood Warnings in 2004

Flash Flood Warning 4, NWS Missoula, MT

July 1, 2004Flathead County, Montana

NWS Missoula, MT issued this flash flood warning at Jul 1, 2004, 4:30 AM MDT for Flathead County, Montana. It was in force for 60 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
Jul 1, 2004, 4:30 AM MDT (10:30 UTC)
Expired
Jul 1, 2004, 5:30 AM MDT
In force
60 min
Issued by
NWS Missoula, MT
Area
Counties, with a storm outline in the text

County Flathead County, MT

The radar

The Missoula radar (KMSX), 148 km from the middle of the area, began a volume at 10:33 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, 10.5 hours before the alert went out and 200 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 2004-07-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 407 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 2004-07-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -13 square meters per square second.1939Sfc1 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
407 J/kg
Mixed-layer CIN
-23 J/kg
Mixed-layer LCL
1928 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
-13 m²/s²
0-3 km storm-relative helicity
44 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.4

Open this sounding in Storm Lab

The text

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

000 
WGUS55 KMSO 011034
FFWMSO
MTC029-011130-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MISSOULA MT
430 AM MDT THU JUL 1 2004

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  BETA CREEK AND MAMIE CREEK BURN AREA NEAR HUNGRY HORSE RESERVOIR IN
  CENTRAL FLATHEAD COUNTY IN NORTHWEST MONTANA

* UNTIL 530 AM MDT

* AT 430 AM MDT...DOPPLER RADAR INDICATED VERY HEAVY RAIN FROM A 
  THUNDERSTORM 3 MILES WEST OF BETA CREEK AND MAMIE CREEK BURN       
  AREA NEAR HUNGRY HORSE RESERVOIR...OR ABOUT 10 MILES EAST OF   
  EVERGREEN...MOVING NORTHEAST AT 15 MPH.

* THE THUNDERSTORM PRODUCING VERY HEAVY RAIN WILL BE...
  3 MILES EAST OF BETA CREEK AND MAMIE CREEK BURN AREA NEAR 
  HUNGRY HORSE RESERVOIR BY 450 AM 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 4825 11428 4814 11415 4850 11332 4870 11351

$$

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.