Alert archive / Nevada / Flash Flood Warnings in 1998

Flash Flood Warning 10, NWS Reno, NV

July 24, 1998Mineral County, Nevada

NWS Reno, NV issued this flash flood warning at Jul 24, 1998, 3:56 PM PDT for Mineral County, Nevada. It was in force for 64 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 24, 1998, 3:56 PM PDT (22:56 UTC)
Expired
Jul 24, 1998, 5:00 PM PDT
In force
64 min
Issued by
NWS Reno, NV
Area
Whole counties

County Mineral County, NV

The radar

The Reno radar (KRGX), 162 km from the middle of the area, began a volume at 22:58 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

Reno, NV (KREV), launched 12:00Z, 10.9 hours before the alert went out and 116 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, Reno, NV at 12:00Z on 1998-07-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 105 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, Reno, NV at 12:00Z on 1998-07-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 4 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
105 J/kg
Mixed-layer CIN
-92 J/kg
Mixed-layer LCL
1481 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
4 m²/s²
0-3 km storm-relative helicity
36 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 
TTAA00 KRNO 242259
FFWRNO
NVC021-250000-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE RENO NV
356 PM PDT FRI JUL 24 1998

THE NATIONAL WEATHER SERVICE IN RENO HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  WESTERN MINERAL COUNTY IN WEST CENTRAL NEVADA

* UNTIL 5 PM PDT

* AT 345 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  THUNDERSTORMS WITH VERY HEAVY RAIN NEAR HAWTHORNE AND WALKER LAKE.
  THE THUNDERSTORMS WERE MOVING SLOWLY NORTH.

* THUNDERSTORMS SOUTH OF HAWTHORNE WERE MOVING UP ALONG HIGHWAY 359 AND
  WERE PRODUCING VERY HEAVY RAIN. THESE STORMS WERE MOVING THROUGH STEEP
  TERRAIN AND LIKELY PRODUCING FLASH FLOODING AND POSSIBLE MUDSLIDES.
  THE STORMS WILL MOVE THROUGH THE HAWTHORE AREA AROUND 415 PM WITH
  POSSIBLE URBAN AND SMALL STREAM FLOODING.


AREA RESIDENTS SHOULD MONITOR FLOOD CONDITIONS...AND BE PREPARED
TO MOVE TO HIGHER GROUND...SHOULD FLOOD WATERS THREATEN.  IF FLASH
FLOODING IS OBSERVED...ACT QUICKLY.  MOVE TO HIGHER GROUND TO
ESCAPE FLOOD WATERS.  DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN
WATER BEGINS RISING.

What forecasters said that day

The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Local storm report, Jul 24, 10:30 AM PDT, 5 hours 26 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RENO NEVADA
1030 AM PDT FRI JUL 24 1998

TIME(PDT)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

1220 PM    WOODFORDS                 CA   0.19 INCHES RAIN
07/23/98   ALPINE                         IN 8 MINUTES

1315 PM    4 MI E OF SUSANVILLE      CA   0.18 INCHES OF RAIN
07/23/98   LASSEN                         SMALL HAIL FROM
                                          THUNDERSTORM

1325 PM    WELLINGTON                CA   0.5 INCHES RAIN IN 10
07/23/98   DOUGLAS                        MINUTES
                                          WATER OVER ROAD

1345 PM    RENO                      NV   0.23 INCHES RAIN
07/23/98   WASHOE                         IN 15 MINUTES

1355 PM    RENO                      NV   0.11 INCHES RAIN
07/23/98   WASHOE                         IN 13 MINUTES

1500 PM    WALKER CANYON             CA   0.45 INCHES RAIN
07/23/98   MONO                           IN 20 MINUTES
                                          WIND GUSTS TO 50 MPH

1615 PM    17 MI S BRIDGEPORT        CA   FLOODED ROADWAYS
07/23/98   MONO                           MINOR MUD SLIDES
                                          ROCKS OVER ROAD
                                          PORTION OF HIGHWAY 395
                                          CLOSED

1620 PM    EAGLEVILLE                CA   ROCKS WASHED ON TO ROAD
07/23/98   MONO                           MINOR MUD SLIDES

1705 PM    SHERIFF OFFICE            NV   ROCKS AND WATER
07/23/98   MINERAL                        OVER ROADWAY ON HIGHWAY
                                          359

1730 PM    LEE VINING                CA   0.36 INCHES RAIN
07/23/98   MONO                           IN 30 MINUTES

2040 PM    FERNLEY                   NV   FLASH FLOODING
07/23/98   LYON                           WATER OVER LOWLAND ROADS

0200 AM    CONWAY SUMMIT             CA   DEBRIS OVER ROAD
7/24/98    MONO                            ROAD CLOSED FOR ABOUT
                                          AN HOUR
Local storm report, Jul 24, 10:30 AM PDT, 5 hours 26 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RENO NEVADA
1030 AM PDT FRI JUL 24 1998

TIME(PDT)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

1220 PM    WOODFORDS                 CA   0.19 INCHES RAIN
07/23/98   ALPINE                         IN 8 MINUTES

1315 PM    4 MI E OF SUSANVILLE      CA   0.18 INCHES OF RAIN
07/23/98   LASSEN                         SMALL HAIL FROM
                                          THUNDERSTORM

1325 PM    WELLINGTON                CA   0.5 INCHES RAIN IN 10
07/23/98   DOUGLAS                        MINUTES
                                          WATER OVER ROAD

1345 PM    RENO                      NV   0.23 INCHES RAIN
07/23/98   WASHOE                         IN 15 MINUTES

1355 PM    RENO                      NV   0.11 INCHES RAIN
07/23/98   WASHOE                         IN 13 MINUTES

1500 PM    WALKER CANYON             CA   0.45 INCHES RAIN
07/23/98   MONO                           IN 20 MINUTES
                                          WIND GUSTS TO 50 MPH

1615 PM    17 MI S BRIDGEPORT        CA   FLOODED ROADWAYS
07/23/98   MONO                           MINOR MUD SLIDES
                                          ROCKS OVER ROAD
                                          PORTION OF HIGHWAY 395
                                          CLOSED

1620 PM    EAGLEVILLE                CA   ROCKS WASHED ON TO ROAD
07/23/98   MONO                           MINOR MUD SLIDES

1705 PM    SHERIFF OFFICE            NV   ROCKS AND WATER
07/23/98   MINERAL                        OVER ROADWAY ON HIGHWAY
                                          359

1730 PM    LEE VINING                CA   0.36 INCHES RAIN
07/23/98   MONO                           IN 30 MINUTES

2040 PM    FERNLEY                   NV   FLASH FLOODING
07/23/98   LYON                           WATER OVER LOWLAND ROADS

0200 AM    CONWAY SUMMIT             CA   DEBRIS OVER ROAD
7/24/98    MONO                            ROAD CLOSED FOR ABOUT
                                          AN HOUR

The office that day

Everything else NWS Reno, NV issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 23, 5:13 PM PDTFlash Flood WarningREVLyon62 min
Jul 23, 8:50 PM PDTFlash Flood WarningREVChurchill, Lyon85 min

Nearby

Flash Flood Warnings in Nevada, 1998Every flash flood warning in 1998

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.