Alert archive / Nevada / Flash Flood Warnings in 2015
Flash Flood Warning 2, NWS Reno, NV
NWS Reno, NV issued this flash flood warning at Jun 30, 2015, 4:41 PM PDT for Lyon County, Nevada. It was in force for 3 hr. 1 report came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Jun 30, 2015, 4:41 PM PDT (23:41 UTC)
- Expired
- Jun 30, 2015, 7:45 PM PDT
- In force
- 3 hr
- Issued by
- NWS Reno, NV
- Area
- Storm-based polygon
- Flood severity
- None
County Lyon County, NV
The radar
The Reno radar (KRGX), 140 km from the middle of the area, began a volume at 23:44 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 30, 6:27 PM PDT | FLASH FLOOD | Sweetwater Summit, NV | FLOODING REPORTED OVER HIGHWAY 338 BY LYON COUNTY EMERGENCY MANAGMENT. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Reno, NV (KREV), launched 12:00Z, 11.7 hours before the alert went out and 146 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.
- Mixed-layer CAPE
- 2 J/kg
- Mixed-layer CIN
- -346 J/kg
- Mixed-layer LCL
- 2589 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- 17 m²/s²
- 0-3 km storm-relative helicity
- 102 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
465
WGUS55 KREV 302341
FFWREV
NVC019-010245-
/O.NEW.KREV.FF.W.0002.150630T2341Z-150701T0245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE RENO NV
441 PM PDT TUE JUN 30 2015
THE NATIONAL WEATHER SERVICE IN RENO HAS ISSUED A
* FLASH FLOOD WARNING FOR...
SOUTH CENTRAL LYON COUNTY IN WEST CENTRAL NEVADA...
* UNTIL 745 PM PDT
* AT 440 PM PDT...DOPPLER RADAR INDICATED A SERIES OF THUNDERSTORMS
PRODUCING HEAVY RAIN ACROSS THE WARNED AREA. FLASH FLOODING IS
OCCURRING OR EXPECTED TO BEGIN SHORTLY.
* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
SWEETWATER SUMMIT AND NEVADA STATE ROUTE 338.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO
AREAS WHERE THE WATER COVERS THE ROADWAY. FLOOD WATERS ARE USUALLY
DEEPER THAN THEY APPEAR. A FEW INCHES OF FAST FLOWING WATER IS
POWERFUL ENOUGH TO SWEEP VEHICLES OFF THE ROAD.
MOVE TO HIGHER GROUND NOW. ACT QUICKLY TO PROTECT YOUR LIFE.
&&
LAT...LON 3856 11925 3856 11916 3853 11914 3845 11911
3842 11915 3847 11923 3854 11932
$$
MB2 follow-up statements
796
WGUS75 KREV 010153
FFSREV
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE RENO NV
653 PM PDT TUE JUN 30 2015
NVC019-010245-
/O.CON.KREV.FF.W.0002.000000T0000Z-150701T0245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
LYON NV-
653 PM PDT TUE JUN 30 2015
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 745 PM PDT FOR
SOUTH CENTRAL LYON COUNTY...
AT 627 PM PDT...EMERGENCY MANAGEMENT REPORTED FLASH FLOODING IN
SWEETWATER SUMMIT AREA ALONG NEVADA STATE ROUTE 338.
FLASH FLOODING IS ALREADY OCCURRING.
SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
NEVADA STATE ROUTE 338 AND SWEETWATER SUMMIT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THIS IS A VERY DANGEROUS SITUATION! RUNOFF WILL QUICKLY FLOOD LOW
LYING AREAS...STREETS...STREAMS...CREEKS...AND RIVERS. MANY ROADWAYS
MAY BE CLOSED DUE TO THE HEAVY RAINFALL AND TRAVEL IS NOT
RECOMMENDED.
MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO
AREAS WHERE THE WATER COVERS THE ROADWAY. FLOOD WATERS ARE USUALLY
DEEPER THAN THEY APPEAR. A FEW INCHES OF FAST FLOWING WATER IS
POWERFUL ENOUGH TO SWEEP VEHICLES OFF THE ROAD.
&&
LAT...LON 3856 11925 3856 11916 3853 11914 3845 11911
3842 11915 3847 11923 3854 11932
$$
MB455
WGUS75 KREV 010245
FFSREV
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE RENO NV
745 PM PDT TUE JUN 30 2015
NVC019-010250-
/O.EXP.KREV.FF.W.0002.000000T0000Z-150701T0245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
LYON NV-
745 PM PDT TUE JUN 30 2015
...THE FLASH FLOOD WARNING FOR SOUTH CENTRAL LYON COUNTY WILL EXPIRE
AT 745 PM PDT...
THE HEAVY RAIN HAS ENDED...AND FLOOD WATER HAS LIKELY RECEDED FROM
THE SWEETWATER SUMMIT AREA. STILL...CULVERTS AND DRAINAGE AREAS MAY
BE SWOLLEN WITH FLOOD WATERS AND COULD POSE A DANGER TO THOSE THAT
GET TOO CLOSE AS EMBANKMENTS COULD FAIL. ALSO...ROUTE 338 MAY HAVE
SUSTAINED DAMAGE THAT MAY NOT BE VISIBLE AFTER THE SUN SETS. EXTRA
CAUTION IS NEEDED IF TRAVELING ROUTE 338 TONIGHT. ROCK SLIDES CAN
OCCUR HOURS AFTER FLOODING AND MAY POSE AN ADDITIONAL THREAT TO
TRAVELERS. IF POSSIBLE...WAIT UNTIL TOMORROW TO TRAVEL THROUGH THE
SWEETWATER SUMMIT AREA.
LAT...LON 3856 11925 3856 11916 3853 11914 3845 11911
3842 11915 3847 11923 3854 11932
$$
MBThe office that day
Everything else NWS Reno, NV issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 29, 6:35 PM PDT | Special Weather Statement | REV | Douglas | 55 min |
| Jun 29, 7:48 PM PDT | Special Weather Statement | REV | 42 min | |
| Jun 30, 3:04 PM PDT | Special Weather Statement | REV | Douglas | 41 min |
| Jun 30, 3:39 PM PDT | Special Weather Statement | REV | Churchill | 21 min |
| Jun 30, 3:58 PM PDT | Flash Flood Warning | REV | Douglas, Lyon | 3 hr |
| Jun 30, 4:17 PM PDT | Areal Flood Advisory | REV | Lyon | 118 min |
| Jun 30, 4:21 PM PDT | Special Weather Statement | REV | Mineral | 39 min |
| Jun 30, 4:31 PM PDT | Special Weather Statement | REV | 44 min |
Nearby
Flash Flood Warnings in Nevada, 2015Every flash flood warning in 2015
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.