Alert archive / Nebraska / Flash Flood Warnings in 2008
Flash Flood Warning 13, NWS Cheyenne, WY
NWS Cheyenne, WY issued this flash flood warning at Jul 22, 2008, 5:45 PM MDT for Scotts Bluff County, Nebraska. It was in force for 6 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 22, 2008, 5:45 PM MDT (23:45 UTC)
- Expired
- Jul 22, 2008, 11:17 PM MDT
- In force
- 6 hr
- Issued by
- NWS Cheyenne, WY
- Area
- Storm-based polygon
- Flood severity
- None
County Scotts Bluff County, NE
The radar
The Cheyenne radar (KCYS), 134 km from the middle of the area, began a volume at 23:46 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 22, 8:03 PM MDT | FLASH FLOOD | 3 Ene Scottsbluff, NE | COUNTY ROADS J,K AND 24 FLOODED. WATER DAMAGE WASHED OUT ROADS - ESTIMATED 20K TO REPAIR. HOMES IN THAT AREA WITH FLOODED BASEMENTS. AFFECTED AREA IS APPX 3.4 MI NORTH AND EAST OF SCOTTSBLUFF AND COVERS APPX 6 MILES. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Denver, CO (KDNR), launched 12:00Z, 11.8 hours before the alert went out and 229 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2524 m above ground
- 0-6 km bulk shear
- 2 kt
- 0-1 km storm-relative helicity
- -13 m²/s²
- 0-3 km storm-relative helicity
- 42 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
WGUS55 KCYS 222345
FFWCYS
NEC157-230545-
/O.NEW.KCYS.FF.W.0013.080722T2345Z-080723T0545Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE CHEYENNE WY
545 PM MDT TUE JUL 22 2008
THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A
* FLASH FLOOD WARNING FOR...
NORTHEASTERN SCOTTS BLUFF COUNTY IN THE PANHANDLE OF NEBRASKA...
* UNTIL 1145 PM MDT
* AT 537 PM MDT...LOCAL LAW ENFORCEMENT OFFICIALS REPORTED FLASH
FLOODING FROM A THUNDERSTORM OVER THE WARNED AREA.
* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO LAKE
MINATARE AND LAKE ALICE
ADDITIONAL RAINFALL AMOUNTS OF 1 TO 2 INCHES ARE POSSIBLE IN
THE WARNED AREA.
DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY. MOVE TO HIGHER GROUND.
REPORT FLOODING TO THE NATIONAL WEATHER SERVICE OFFICE IN CHEYENNE AT
1-800-269-6220.
LAT...LON 4194 10367 4199 10363 4199 10339 4178 10339
4185 10364
$$2 follow-up statements
000
WGUS75 KCYS 230118
FFSCYS
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE CHEYENNE WY
718 PM MDT TUE JUL 22 2008
NEC157-230545-
/O.CON.KCYS.FF.W.0013.000000T0000Z-080723T0545Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SCOTTS BLUFF NE-
718 PM MDT TUE JUL 22 2008
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1145 PM MDT FOR
NORTHEASTERN SCOTTS BLUFF COUNTY...
AT 647 PM MDT...LOCAL LAW ENFORCEMENT OFFICIALS REPORTED A
THUNDERSTORM THAT MOVED OVER THE AREA PREVIOUSLY PRODUCED FLASH
FLOODING OVER THE WARNED AREA. SPOTTER REPORTS INDICATE ABOVE A HALF
INCH OF RAIN ON EAST SIDE OF SCOTTSBLUFF TO 1.7 INCHES ON THE
NORTHEAST SIDE OF SCOTTSBLUFF. LAW ENFORCEMENT ALSO REPORTED AN
IRRIGATION DITCH ON THE NORTHEAST SIDE OF TOWN BROKE FLOODING AN 80
YARD AREA WITH 2 FEET OF WATER. A COUPLE HOMES NEAR THE BROKEN
IRRIGATION DITCH HAVE FLOODED.
RADAR SHOWS WEAKER THUNDERSTORMS MOVING EAST AND WILL AFFECT THE
AREA BY 8 PM. EXPECT ADDITIONAL RAINFALL AMOUNTS OF A QUARTER TO
HALF OF AN INCH THAT WILL CONTINUE TO AGGRAVATE FLOODED AREAS ON THE
NORTHEAST SIDE OF SCOTTSBLUFF.
LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO LAKE MINATARE
AND LAKE ALICE
DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY. MOVE TO HIGHER GROUND.
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM MDT
TUESDAY EVENING FOR CENTRAL NEBRASKA AND SOUTHEASTERN WYOMING.
LAT...LON 4194 10367 4199 10363 4199 10339 4178 10339
4185 10364
$$000
WGUS75 KCYS 230517
FFSCYS
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE CHEYENNE WY
1117 PM MDT TUE JUL 22 2008
NEC157-230526-
/O.CAN.KCYS.FF.W.0013.000000T0000Z-080723T0545Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SCOTTS BLUFF NE-
1117 PM MDT TUE JUL 22 2008
...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR NORTHEASTERN SCOTTS
BLUFF COUNTY...
SHOWERS AND THUNDERSTORMS HAVE DECREASED IN COVERAGE AND INTENSITY
ACROSS SCOTTS BLUFF COUNTY...THUS THE FLASH FLOOD WARNING HAS BEEN
CANCELLED. NO ADDITIONAL REPORTS OF FLASH FLOODING HAVE BEEN
RECEIVED.
LAT...LON 4194 10367 4199 10363 4199 10339 4178 10339
4185 10364
$$
RUBINThe office that day
Everything else NWS Cheyenne, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 22, 5:28 PM MDT | Severe Thunderstorm Warning | CYS | Box Butte, Dawes | 24 min |
| Jul 22, 5:38 PM MDT | Severe Thunderstorm Warning | CYS | Morrill, Scotts Bluff | 52 min |
| Jul 22, 5:56 PM MDT | Severe Thunderstorm Warning | CYS | Dawes | 39 min |
Nearby
Flash Flood Warnings in Nebraska, 2008Every flash flood warning in 2008
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.