Alert archive / Nevada / Flash Flood Warnings in 2017
Flash Flood Warning 6, NWS Reno, NV
NWS Reno, NV issued this flash flood warning at Jul 29, 2017, 4:25 PM PDT for Lyon County, Storey County, Washoe 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
- Jul 29, 2017, 4:25 PM PDT (23:25 UTC)
- Expired
- Jul 29, 2017, 7:30 PM PDT
- In force
- 3 hr
- Issued by
- NWS Reno, NV
- Area
- Storm-based polygon
- Flood severity
- None
Counties Lyon County, NV, Storey County, NV, Washoe County, NV
The radar
The Reno radar (KRGX), 56 km from the middle of the area, began a volume at 23:26 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 |
|---|---|---|---|
| Jul 29, 4:43 PM PDT | HEAVY RAIN 0.43 | 5 S Pleasant Valley, NV | TRAINED WEATHER SPOTTER REPORTED 0.43 INCHES OF RAIN IN THE PAST HOUR AND PONDING OF WATER ON ROADWAYS. |
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, 11.4 hours before the alert went out and 134 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
- 57 J/kg
- Mixed-layer CIN
- -290 J/kg
- Mixed-layer LCL
- 2590 m above ground
- 0-6 km bulk shear
- 9 kt
- 0-1 km storm-relative helicity
- 10 m²/s²
- 0-3 km storm-relative helicity
- 109 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
545
WGUS55 KREV 292325
FFWREV
NVC019-029-031-510-300230-
/O.NEW.KREV.FF.W.0006.170729T2325Z-170730T0230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Reno NV
425 PM PDT SAT JUL 29 2017
The National Weather Service in Reno has issued a
* Flash Flood Warning for...
Storey County in western Nevada...
South central Washoe County in western Nevada...
Northern Lyon County in west central Nevada...
Central Carson City in western Nevada...
* Until 730 PM PDT
* At 422 PM PDT, Doppler radar indicated heavy rain, as much as 2
inches has fallen across the higher terrain east of Washoe Lake.
Flash flooding is expected which could impact Eastlake Boulevard
and New Washoe City.
* Some locations that will experience flooding include...
New Washoe City, Washoe Lake Campground and Nv 341 At
Washoe-Storey Co Line.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Please report flooding to your local law enforcement agency when you
can do so safely.
&&
LAT...LON 3922 11969 3922 11979 3930 11978 3939 11972
3937 11963
$$
TF2 follow-up statements
523
WGUS75 KREV 300053
FFSREV
Flash Flood Statement
National Weather Service Reno NV
553 PM PDT SAT JUL 29 2017
NVC019-029-031-510-300230-
/O.CON.KREV.FF.W.0006.000000T0000Z-170730T0230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Storey NV-Washoe NV-Lyon NV-Carson City NV-
553 PM PDT SAT JUL 29 2017
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 730 PM PDT FOR
STOREY...SOUTH CENTRAL WASHOE...AND NORTHERN LYON COUNTIES AND
CENTRAL CARSON CITY...
At 543 PM PDT, heavy rainfall has subsided across the warning area.
However, the threat for flashing flooding continues as rain runoff
makes its way through valley and canyon areas from Eastlake
Boulevard and Jumbo Grade. Report any flooding to local law
enforcement.
LAT...LON 3922 11969 3922 11979 3930 11978 3939 11972
3937 11963
$$
TF810
WGUS75 KREV 300200
FFSREV
Flash Flood Statement
National Weather Service Reno NV
700 PM PDT SAT JUL 29 2017
NVC019-029-031-510-300208-
/O.CAN.KREV.FF.W.0006.000000T0000Z-170730T0230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Storey NV-Washoe NV-Lyon NV-Carson City NV-
700 PM PDT SAT JUL 29 2017
...THE FLASH FLOOD WARNING FOR STOREY...SOUTH CENTRAL WASHOE...AND
NORTHERN LYON COUNTIES AND CENTRAL CARSON CITY IS CANCELLED...
The heavy rain has ended. Flooding is no longer expected to pose a
threat.
LAT...LON 3922 11969 3922 11979 3930 11978 3939 11972
3937 11963
$$The office that day
Everything else NWS Reno, NV issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 28, 5:45 PM PDT | Special Weather Statement | REV | 45 min | |
| Jul 28, 6:04 PM PDT | Special Weather Statement | REV | Lyon, Mineral | 116 min |
| Jul 28, 7:05 PM PDT | Special Weather Statement | REV | Storey | 40 min |
| Jul 28, 7:47 PM PDT | Special Weather Statement | REV | Storey | 28 min |
| Jul 28, 8:04 PM PDT | Special Weather Statement | REV | Lyon, Mineral | 86 min |
| Jul 29, 2:38 PM PDT | Special Weather Statement | REV | Douglas, Storey | 82 min |
| Jul 29, 4:01 PM PDT | Special Weather Statement | REV | Douglas, Lyon, Storey | 89 min |
Nearby
Flash Flood Warnings in Nevada, 2017Every flash flood warning in 2017
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.