Alert archive / Nebraska / Flash Flood Warnings in 2003

Flash Flood Warning 6, NWS North Platte, NE

June 24, 2003Cherry County, Keya Paha County, Nebraska

NWS North Platte, NE issued this flash flood warning at Jun 24, 2003, 1:51 AM MDT for Cherry County, Keya Paha County, Nebraska. It was in force for 114 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Jun 24, 2003, 1:51 AM MDT (07:51 UTC)
Expired
Jun 24, 2003, 3:45 AM MDT
In force
114 min
Issued by
NWS North Platte, NE
Area
Counties, with a storm outline in the text

Counties Cherry County, NE, Keya Paha County, NE

The radar

The North Platte radar (KLNX), 94 km from the middle of the area, began a volume at 07:51 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

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 7.9 hours before the alert went out and 185 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, N. Platte/Lee Bi, NE at 00:00Z on 2003-06-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 4886 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, N. Platte/Lee Bi, NE at 00:00Z on 2003-06-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 149 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
4886 J/kg
Mixed-layer CIN
-21 J/kg
Mixed-layer LCL
1084 m above ground
0-6 km bulk shear
59 kt
0-1 km storm-relative helicity
149 m²/s²
0-3 km storm-relative helicity
351 m²/s²
Significant tornado parameter
7.9
Supercell composite
32.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WGUS53 KLBF 240752
FFWLBF
NEC031-103-240945-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
251 AM CDT TUE JUN 24 2003

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  WESTERN KEYA PAHA COUNTY IN NORTH CENTRAL NEBRASKA
  NORTHEASTERN CHERRY COUNTY IN NORTH CENTRAL NEBRASKA

* UNTIL 445 AM CDT(345 AM MDT)

* AT 246 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  VERY HEAVY RAIN 7 MILES SOUTH OF SPARKS...OR ABOUT 14 MILES EAST OF
  VALENTINE...MOVING NORTHEAST AT 45 MPH.

* LOCATIONS IN THE WARNING INCLUDE CROOKSTON...VALENTINE...AND
  SPARKS.

EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE FLASH FLOODING OF SMALL 
CREEKS AND STREAMS...AND HIGHWAYS. ADDITIONALLY...COUNTRY 
ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS AND STREAMS AND OTHER 
LOW LYING AREAS ARE SUBJECT TO FLASH FLOODING.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODS AND FLASH FLOODS. IF FLASH FLOODING IS OBSERVED ACT
QUICKLY. MOVE UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY
IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

TO REPORT SEVERE WEATHER HAVE THE NEAREST LAW ENFORCEMENT AGENCY
RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN
NORTH PLATTE.

LAT...LON 4297 10080 4246 10081 4248 10023 4286 10022
          4276 9975 4299 9975

$$
DDB
2 follow-up statements
000 
WSUS73 KLBF 240901
FFSLBF
NEC031-103-240945-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
358 AM CDT TUE JUN 24 2003

..A FLASH FLOOD WARNING CONTINUES FOR WESTERN KEYA PAHA AND 
NORTHEASTERN CHERRY COUNTIES UNTIL 445 AM CDT (345 AM MDT)...

* AT 353 AM CDT(253 AM MDT)...MOST OF THE STORMS THAT PRODUCED HEAVY 
  RAIN MOVED NORTHEAST OUT OF THE AREA.  HOWEVER...FLASH FLOODING IS 
  STILL POSSIBLE ALONG SMALL CREEKS AND NARROW TRIBUTARIES ALONG THE 
  NIOBRARA RIVER.  

EXCESSIVE RUNOFF FROM THESE STORMS WILL CONTINUE TO CAUSE FLASH 
FLOODING OF SMALL CREEKS AND STREAMS...COUNTRY ROADS...AS WELL AS 
FARMLAND ALONG THE BANKS OF CREEKS AND STREAMS.

STAY TUNED TO NOAA WEATHER RADIO OR LOCAL TELEVISION AND RADIO
STATIONS FOR THE LATEST WEATHER INFORMATION.

$$
DDB
000 
WSUS73 KLBF 240947
FFSLBF
NEC031-103-241015-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
443 AM CDT TUE JUN 24 2003

..THE FLASH FLOOD WARNING FOR NORTHEASTERN CHERRY AND WESTERN KEYA
PAHA COUNTIES HAS BEEN ALLOWED TO EXPIRE...

AT 438 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR...AS WELL AS 
REPORTS FROM NORTHEASTERN CHERRY AND WESTERN KEYA PAHA COUNTIES...INDICATED 
THE RAINFALL WAS ENDING ACROSS THE WARNED AREA...AND THE FLOOD 
THREAT WAS DIMINISHING. SOME MINOR FLOODING MAY CONTINUE...BUT THE 
THREAT OF SERIOUS FLOODING HAS ENDED. THUS...THE FLASH FLOOD WARNING 
HAS BEEN ALLOWED TO EXPIRE.

$$

CLB

The office that day

Everything else NWS North Platte, NE issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 23, 7:04 PM MDTSevere Thunderstorm WarningLBFHolt56 min
Jun 23, 8:02 PM MDTSevere Thunderstorm WarningLBFHolt58 min
Jun 23, 8:07 PM MDTSevere Thunderstorm WarningLBFFrontier53 min
Jun 23, 8:24 PM MDTSevere Thunderstorm WarningLBFHayes, Lincoln66 min
Jun 23, 8:31 PM MDTTornado WarningLBFFrontier29 min
Jun 23, 8:58 PM MDTTornado WarningLBFFrontier47 min
Jun 23, 9:02 PM MDTTornado WarningLBFHayes28 min
Jun 23, 9:05 PM MDTSevere Thunderstorm WarningLBFChase25 min
Jun 23, 9:20 PM MDTSevere Thunderstorm WarningLBFCuster25 min
Jun 23, 9:24 PM MDTSevere Thunderstorm WarningLBFBlaine, Chase, Garfield, Hayes, Lincoln, Loup66 min
Jun 23, 9:26 PM MDTSevere Thunderstorm WarningLBFLincoln64 min
Jun 23, 9:32 PM MDTSevere Thunderstorm WarningLBFHayes58 min
Jun 23, 9:40 PM MDTTornado WarningLBFFrontier35 min
Jun 23, 10:02 PM MDTSevere Thunderstorm WarningLBFCuster58 min
Jun 23, 10:09 PM MDTSevere Thunderstorm WarningLBFLoup36 min
Jun 23, 10:12 PM MDTSevere Thunderstorm WarningLBFHolt63 min
Jun 23, 10:19 PM MDTSevere Thunderstorm WarningLBFLogan56 min
Jun 23, 10:27 PM MDTSevere Thunderstorm WarningLBFLincoln63 min
Jun 23, 10:31 PM MDTSevere Thunderstorm WarningLBFGarfield29 min
Jun 23, 10:57 PM MDTSevere Thunderstorm WarningLBFGarden63 min
Jun 23, 11:13 PM MDTSevere Thunderstorm WarningLBFHolt47 min
Jun 23, 11:14 PM MDTSevere Thunderstorm WarningLBFSheridan61 min
Jun 23, 11:35 PM MDTSevere Thunderstorm WarningLBFCherry55 min
Jun 23, 11:42 PM MDTSevere Thunderstorm WarningLBFBrown, Cherry, Keya Paha63 min
Jun 24, 12:19 AM MDTSevere Thunderstorm WarningLBFGrant56 min
Jun 24, 12:58 AM MDTSevere Thunderstorm WarningLBFSheridan47 min
Jun 24, 4:07 PM MDTSevere Thunderstorm WarningLBFLincoln53 min
Jun 24, 4:29 PM MDTTornado WarningLBFLincoln31 min
Jun 24, 4:39 PM MDTSevere Thunderstorm WarningLBFChase, Hayes66 min
Jun 24, 4:59 PM MDTTornado WarningLBFLincoln31 min
Jun 24, 5:06 PM MDTSevere Thunderstorm WarningLBFLogan54 min
Jun 24, 5:18 PM MDTSevere Thunderstorm WarningLBFBlaine, Custer57 min
Jun 24, 5:24 PM MDTTornado WarningLBFLincoln36 min
Jun 24, 5:34 PM MDTSevere Thunderstorm WarningLBFThomas56 min
Jun 24, 5:54 PM MDTTornado WarningLBFBlaine66 min
Jun 24, 5:56 PM MDTTornado WarningLBFCuster, Lincoln34 min

Nearby

Flash Flood Warnings in Nebraska, 2003Every flash flood warning in 2003

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.