Alert archive / Nebraska / Flash Flood Warnings in 1996

Flash Flood Warning 2, NWS North Platte, NE

August 3, 1996Sheridan County, Nebraska

NWS North Platte, NE issued this flash flood warning at Aug 3, 1996, 10:23 PM MDT for Sheridan County, Nebraska. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Aug 3, 1996, 10:23 PM MDT (04:23 UTC)
Expired: Aug 4, 1996, 1:20 AM MDT
In force: 3 hr
Issued by: NWS North Platte, NE
Area: Whole counties

County Sheridan County, NE

The nearest sounding before it

Rapid City, SD (KUNR), launched 00:00Z, 4.4 hours before the alert went out and 178 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 3155 m above ground
0-6 km bulk shear: 23 kt
0-1 km storm-relative helicity: -21 m²/s²
0-3 km storm-relative helicity: 83 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 KLBF 040424
FFWLBF
NEC161-040720-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
1123 PM CDT (1023 PM MDT) SAT AUG 3 1996

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE NE HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL 120 AM MDT (220 AM CDT)
FOR PEOPLE IN THE FOLLOWING LOCATION...

IN THE PANHANDLE OF NEBRASKA

   ...NORTHERN SHERIDAN COUNTY
 
AT 1020 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF NEARLY STATIONARY SEVERE THUNDERSTORMS WHICH EXTENDED
THROUGH NORTHERN SHERIDAN COUNTY...ALONG AND NEAR HIGHWAY 20.  RADAR
RAINFALL ESTIMATES IN EXCESS OF 6 INCHES WERE INDICATED SINCE THE
RAIN BEGAN IN THE AREA AROUND 800 PM MDT.

SIGNIFICANT RUNOFF FROM THE HEAVY RAINS...WITH ADDITIONAL HEAVY RAIN
LIKELY UNTIL AROUND MIDNIGHT MDT WILL RESULT IN FLASH FLOODING OF
SMALL STREAMS AND CREEKS OVER NORTHERN SHERIDAN COUNTY.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZEd THE
DANGER OF FLOODING.  DO NOT ATTEMPT TO DRIVE THROUGH FLOODED AREAS.
MOVE TO HIGHER GROUND IF FLOODING THREATENS.

WERT

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, Aug 3, 9:08 PM MDT, 1 hour 15 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE  NORTH PLATTE NE
1007 PM CDT SAT AUG 3 1996

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

0550 PM    4 NE HAY SPRINGS          NE   WIND DAMAGE
08/03/96   SHERIDAN                       SEVERAL LARGE TREE LIMBS
                                          DOWNED

1002 PM    4 NE HAY SPRINGS          NE   1.00 INCH HAIL
08/03/96   SHERIDAN

WERT

Special weather statement, Aug 3, 9:25 PM MDT, 58 minutes before

NEZ004-005-022>025-035>037-056>059-069>071-040400-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
1024 PM CDT (924 PM MDT) SAT AUG 3 1996

...TORNADO WATCH NUMBER 909 CANCELLED FOR MOST OF WESTERN NEBRASKA
AND THE EASTERN NEBRASKA PANHANDLE...

THE TORNADO WATCH WHICH HAD BEEN IN EFFECT UNTIL MIDNIGHT CDT
(1100 PM MDT) FOR MUCH OF WESTERN NEBRASKA AND THE EASTERN
NEBRASKA PANHANDLE HAS BEEN CANCELLED...WITH THE EXCEPTION OF CHERRY
AND SHERIDAN COUNTY...WHERE THE WATCH REMAINS IN EFFECT.

ALTHOUGH SCATTERED THUNDERSTORMS ARE POSSIBLE OVER THE AREA
TONIGHT...SEVERE THUNDERSTORMS ARE NO LONGER EXPECTED THROUGH AT
LEAST MIDNIGHT CDT OVER MUCH OF SOUTHWEST AND WEST CENTRAL
NEBRASKA...AND OVER GARDEN AND DEUEL COUNTIES IN THE NEBRASKA
PANHANDLE.

FURTHER NORTH OVER SHERIDAN AND CHERRY COUNTY...STRONG TO SEVERE
THUNDERSTORMS ARE STILL POSSIBLE...AND THEREFORE THE TORNADO WATCH
WILL CONTINUE IN EFFECT FOR THESE TWO COUNTIES UNTIL MIDNIGHT CDT
(1100 PM MDT).

WERT

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 3, 7:55 PM MDT	Severe Thunderstorm Warning	LBF	Sheridan	60 min
Aug 3, 8:55 PM MDT	Severe Thunderstorm Warning	LBF	Sheridan	65 min
Aug 3, 10:00 PM MDT	Severe Thunderstorm Warning	LBF	Sheridan	60 min
Aug 3, 10:52 PM MDT	Severe Thunderstorm Warning	LBF	Cherry	63 min
Aug 3, 11:20 PM MDT	Severe Thunderstorm Warning	LBF	Sheridan	65 min
Aug 4, 12:30 AM MDT	Severe Thunderstorm Warning	LBF	Grant	50 min
Aug 4, 12:39 AM MDT	Severe Thunderstorm Warning	LBF	Cherry	61 min
Aug 4, 1:10 AM MDT	Severe Thunderstorm Warning	LBF	Cherry, Hooker	65 min
Aug 4, 1:39 AM MDT	Severe Thunderstorm Warning	LBF	Thomas	61 min
Aug 4, 1:51 AM MDT	Severe Thunderstorm Warning	LBF	Cherry	64 min
Aug 4, 2:14 AM MDT	Severe Thunderstorm Warning	LBF	Brown, Loup, Rock	61 min
Aug 4, 2:14 AM MDT	Severe Thunderstorm Warning	LBF	Blaine	61 min
Aug 4, 4:53 PM MDT	Severe Thunderstorm Warning	LBF	Garden	67 min
Aug 4, 5:40 PM MDT	Severe Thunderstorm Warning	LBF	Arthur, Grant	60 min
Aug 4, 5:51 PM MDT	Tornado Warning	LBF	Arthur	34 min

Nearby

Flash Flood Warnings in Nebraska, 1996 Every flash flood warning in 1996

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.