Alert archive / Montana / Flash Flood Warnings in 2002

Flash Flood Warning 3, NWS Missoula, MT

June 27, 2002Ravalli County, Montana

NWS Missoula, MT issued this flash flood warning at Jun 27, 2002, 5:14 PM MDT for Ravalli County, Montana. It was in force for 61 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 27, 2002, 5:14 PM MDT (23:14 UTC)
Expired
Jun 27, 2002, 6:15 PM MDT
In force
61 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 12:00Z, 11.2 hours before the alert went out and 251 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 2002-06-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 209 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 12:00Z on 2002-06-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -26 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
209 J/kg
Mixed-layer CIN
-295 J/kg
Mixed-layer LCL
2532 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
-26 m²/s²
0-3 km storm-relative helicity
98 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

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

000 
WGUS55 KMSO 272314
FFWMSO
MTC081-272315-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MISSOULA MT
515 PM MDT THU JUN 27 2002

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS EXTENDED THE

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

* UNTIL 615 PM MDT

* AT 418 PM MDT...RADAR INDICATED A STORM WITH VERY HEAVY RAINFALL   
  OVER CONNER...OR 21 MILES SOUTH OF HAMILTON. SPOTTER REPORTS AND 
  RADAR ESTIMATES INDICATE BETWEEN .5 AND 1.0 INCH IN LESS THAN AN 
  HOUR RESULTED FROM THESE STORMS.  

* THE THUNDERSTORM WITH EXCESSIVE RAINFALL MOVED OVER THE   
  BITTERROOT BURN AREAS. SPECIFIC CREEKS THAT ARE LIKELY TO BE   
  AFFECTED ARE LITTLE SLEEPING CHILD...SLEEPING CHILD CREEK AND     
  UPPER PORTION OF SKALKAHO CREEK.

A FLASH FLOOD WARNING MEANS FLOODING IS IMMINENT OR OCCURRING. IF YOU
ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY. RESIDENTS
LIVING ALONG RIVERS AND CREEKS SHOULD TAKE IMMEDIATE PRECAUTIONS TO
PROTECT LIFE AND PROPERTY. DO NOT CROSS FLOODED ROADWAYS.

CAMPING SHOULD BE AVOIDED ALONG CREEKS OR STREAMS DURING THREATENING
RAINS. EVEN SMALL STREAMS CAN BE DEADLY TORRENTS OF WATER DURING A
FLASH FLOOD.

LAT...LON 4608 11434 4584 11413 4596 11379 4629 11410

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 27, 4:26 PM MDTFlash Flood WarningMSORavalli49 min
Jun 27, 5:15 PM MDTFlash Flood WarningMSORavalli60 min
Jun 27, 5:32 PM MDTSevere Thunderstorm WarningMSOPowell43 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.