Alert archive / Wyoming / Flash Flood Warnings in 2000

Flash Flood Warning 3, NWS Riverton, WY

June 1, 2000Fremont County, Wyoming

NWS Riverton, WY issued this flash flood warning at Jun 1, 2000, 6:55 PM MDT for Fremont County, Wyoming. It was in force for 6 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jun 1, 2000, 6:55 PM MDT (00:55 UTC)
Expired
Jun 2, 2000, 12:55 AM MDT
In force
6 hr
Issued by
NWS Riverton, WY
Area
Whole counties

County Fremont County, WY

The radar

The Riverton/Lander radar (KRIW), 13 km from the middle of the area, began a volume at 00:53 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

Riverton, WY (KRIW), launched 00:00Z, 0.9 hours before the alert went out and 19 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, Riverton, WY at 00:00Z on 2000-06-02Temperature 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 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Riverton, WY at 00:00Z on 2000-06-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 168 square meters per square second.19395878Sfc1 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
3024 m above ground
0-6 km bulk shear
61 kt
0-1 km storm-relative helicity
168 m²/s²
0-3 km storm-relative helicity
388 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 KRIW 020055
FFWRIW
WYC013-020655-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE RIVERTON WY
655 PM MDT THU JUN 1 2000

THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTH FORK OF THE LITTLE WIND RIVER IN WEST CENTRAL FREMONT COUNTY IN
  WEST CENTRAL WYOMING

* UNTIL 1255 AM MDT

* DUE TO A PLANNED RAPID LOWERING OF THE FT. WASHAKIE RESERVOIR...
  RESIDENTS ALONG THE SOUThH FORK OF THE LITTLE WIND RIVER CAN EXPECT
  RAPIDLY RISING WATER AND POSSIBLE FLASH FLOODING TONIGHT.

  MOVE TO HIGHER GROUND IF FLOOD WATERS THREATEN.

DN

WCJIN-WYNW

Nearby

Flash Flood Warnings in Wyoming, 2000Every flash flood warning in 2000

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.