Alert archive / Montana / Flash Flood Warnings in 2002

Flash Flood Warning 8, NWS Missoula, MT

July 15, 2002Ravalli County, Montana

NWS Missoula, MT issued this flash flood warning at Jul 15, 2002, 4:58 PM MDT for Ravalli County, Montana. It was in force for 62 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jul 15, 2002, 4:58 PM MDT (22:58 UTC)
Expired
Jul 15, 2002, 6:00 PM MDT
In force
62 min
Issued by
NWS Missoula, MT
Area
Whole counties

County Ravalli County, MT

The nearest sounding before it

Spokane, WA (KOTX), launched 12:00Z, 11.0 hours before the alert went out and 250 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 12:00Z on 2002-07-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 12:00Z on 2002-07-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 30 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2365 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
30 m²/s²
0-3 km storm-relative helicity
62 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 152258
FFWMSO
MTC081-160000-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MISSOULA MT
455 PM MDT MON JUL 15 2002

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A

* FLASH FLOOD WARNING FOR EASK FORK BITTERROOT DRAINAGE NORTHEAST OF 
  SULA IN SOUTHEASTERN RAVALLI COUNTY IN WEST CENTRAL MONTANA

* UNTIL 600 PM MDT

* AT 455 PM MDT...SPOTTERS REPORTED MUDSLIDES ON THE EAST FORK       
  HIGHWAY FROM VERY HEAVY RAIN OVER SOUTHEASTERN RAVALLI COUNTY

A FLASH FLOOD WARNING MEANS FLOODING IS IMMINENT OR OCCURRING. 
RESIDENTS LIVING ALONG RIVERS AND CREEKS SHOULD TAKE IMMEDIATE 
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT CROSS FLOODED 
ROADWAYS.

Nearby

Flash Flood Warnings in Montana, 2002Every flash flood warning in 2002

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.