Alert archive / Montana / Flash Flood Warnings in 2002

Flash Flood Warning 5, NWS Missoula, MT

June 28, 2002Ravalli County, Montana

NWS Missoula, MT issued this flash flood warning at Jun 28, 2002, 2:43 AM MDT for Ravalli County, Montana. It was in force for 107 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
Jun 28, 2002, 2:43 AM MDT (08:43 UTC)
Expired
Jun 28, 2002, 4:30 AM MDT
In force
107 min
Issued by
NWS Missoula, MT
Area
Counties, with a storm outline in the text

County Ravalli County, MT

The nearest sounding before it

Spokane, WA (KOTX), launched 00:00Z, 8.7 hours before the alert went out and 218 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 2002-06-28Temperature 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 00:00Z on 2002-06-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 63 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
2776 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
63 m²/s²
0-3 km storm-relative helicity
88 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 280843
FFWMSO
MTC081-281030-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MISSOULA MT
242 AM MDT FRI JUN 28 2002

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHERN RAVALLI COUNTY IN WEST CENTRAL MONTANA

* UNTIL 430 AM MDT

* AT 236 AM MDT...RADAR INDICATED A STORM WITH VERY HEAVY RAINFALL 
MOVING THROUGH THE NORTHERNMOST BURNED AREAS IN THE BITTERROOT. THIS 
STORM WAS MOVING NORTHEAST AT 35 MPH. STEADY RAINFALL WILL OCCUR 
BEHIND THIS STORM WITH TOTAL RAINFALL BETWEEN ONE HALF AND THREE 
QUARTERS IF AN INCH.

* COW CREEK WILL LIKELY BE AFFECTED BY THIS HEAVY RAIN. 

A FLASH FLOOD WARNING MEANS FLOODING IS IMMINENT OR OCCURRING. DO 
NOT CROSS FLOODED ROADWAYS.

LAT...LON 4636 11448 4626 11431 4639 11405 4645 11418

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 27, 6:20 PM MDTSevere Thunderstorm WarningMSOFlathead55 min
Jun 27, 6:43 PM MDTSevere Thunderstorm WarningMSOMissoula, Powell62 min
Jun 27, 6:56 PM MDTSevere Thunderstorm WarningMSOLake, Missoula59 min
Jun 27, 7:17 PM MDTSevere Thunderstorm WarningMSOFlathead, Lake58 min
Jun 27, 7:23 PM MDTSevere Thunderstorm WarningMSOFlathead, Lake52 min
Jun 27, 11:43 PM MDTSevere Thunderstorm WarningMSOMissoula, Ravalli47 min

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.