Alert archive / Nebraska / Flash Flood Warnings in 1998

Flash Flood Warning 1, NWS Goodland, KS

May 22, 1998Dundy County, Nebraska

NWS Goodland, KS issued this flash flood warning at May 22, 1998, 7:36 PM MDT for Dundy County, Nebraska. It was in force for 4 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: May 22, 1998, 7:36 PM MDT (01:36 UTC)
Expired: May 23, 1998, 12:00 AM MDT
In force: 4 hr
Issued by: NWS Goodland, KS
Area: Whole counties

County Dundy County, NE

The radar

The Goodland radar (KGLD), 90 km from the middle of the area, began a volume at 01:38 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

Denver, CO (KDNR), launched 00:00Z, 1.6 hours before the alert went out and 136 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: 133 J/kg
Mixed-layer CIN: -182 J/kg
Mixed-layer LCL: 925 m above ground
0-6 km bulk shear: 41 kt
0-1 km storm-relative helicity: -35 m²/s²
0-3 km storm-relative helicity: 219 m²/s²
Significant tornado parameter: -0.0
Supercell composite: -1.3

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KGLD 230136
FFWGLD
NEC057-230600-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE GOODLAND KS
736 PM MDT FRI MAY 22 1998

THE NATIONAL WEATHER SERVICE IN GOODLAND HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHEASTERN DUNDY COUNTY IN SOUTHWESTERN NEBRASKA

* UNTIL 1200 AM MDT

* AT 730 PM MDT...GOODLAND DOPPLER RADAR AND SPOTTER REPORTS
  INDICATED A THUNDERSTORM WITH VERY HEAVY RAIN OVER BENKELMAN...
  MOVING NEARLY STATIONARY SINCE 7 PM.

* STREET FLOODING IS ALREADY BEING REPORTED AND ANOTHER LINE OF
  STORMS IS APPROACHING THE AREA.

DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD!

ENTWISTLE


&

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.

NWS Goodland, KS wrote its last area forecast discussion before this flash flood warning went out at May 22, 2:10 PM MDT, 5 hours 26 minutes earlier.

Area forecast discussion, May 22, 2:10 PM MDT, 5 hours 26 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GOODLAND KS
210 PM MDT (310 PM CDT) FRI MAY 22 1998

...MAIN FCST CHALLENGE IS CONVECTION TONIGHT...

ETA AND AVN INITIALIZED WELL...BOTH WERE EXCELLENT AT 5H. ETA/AVN
WERE BOTH GOOD AT SFC...WHILE NGM WAS TOO DEEP ON THE LOW OVER KS AT
12Z. BY 18Z ETA WAS BEST AT SFC AS IT INDICATED DEVELOPING LOW OVER
EASTERN COLORADO. WILL FOLLOW ETA THIS PACKAGE.

WV SATELLITE SHOWS A VORT MAX MOVING INTO CENTRAL CO WHICH IS FIRING
TRW ALONG THE FRONT RANGE. THIS FIRST WAVE WILL TRIGGER CONVECTION
OVER WESTERN SECTIONS OF FA BEGINNING LATE THIS AFTERNOON THROUGH
THE EVENING. WITH SFC LOW DEEPENING OVER EASTERN CO LATE THIS
AFTERNOON...MOIST UPSLOPE FLOW WILL PRODUCE BEST MOISTURE
CONVERGENCE FROM NE CO ACROSS NORTHERN AND EASTERN SECTIONS OF FA.
Q VECTOR ANALYSIS SHOWS STRONGEST CONVERGENCE OVER THETA E RIDGE
ACROSS EASTERN FA BY 00Z. WENT HIGHEST POPS NRN AND ERN FA FOR THESE
REASONS.

UPSLOPE FLOW CONTINUES FOR MOST OF THE NIGHT. THIS COMBINED WITH
SOME OUTFLOW COOLED AIR OVER FA...SO EXPECT AREAS OF FOG TO DEVELOP
OVER ALL BUT FAR SRN ZONES. WITH CLOUDS AND E WINDS MOST OF THE
NIGHT...TEMPERATURES SHOULD STAY ABOVE FWC/FAN NUMBERS.

UPPER LEVEL LOW KICKS OFF TO THE NORTHERN PLAINS ON SAT...DRAGGING
THE SFC LOW INTO EASTERN KS. NORTHERLY WINDS WILL SPREAD ACROSS FA
EARLY SAT MORNING. ALTHOUGH Q VECTOR ANALYSIS INDICATES BEST FORCING
OVER EASTERN KS BY 12Z...THINK THAT WRAP AROUND MOISTURE WILL
CONTINUE WIDELY SCATTERED CONVECTIVE ACTIVITY SAT MORNING OVER
EASTERN ZONES.

PRECIPITATION ENDS BY SAT AFTERNOON WITH DRY CONDITIONS FOR THE REST
OF THE PERIODS. CAA BEHIND SFC LOW KEEPS 850/700 THICKNESSES 30M
LOWER THROUGH SUN AFTERNOON PER ETA/AVN. PREFER FAN NUMBERS OVER
SLIGHTLY WARMER FWC.

.GLD...NONE

MLC/TURNER

In the hours before

Local storm report, May 22, 6:38 PM MDT, 58 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GOODLAND KANSAS
638 PM MDT FRI MAY 22 1998

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

0634 PM    7 S LAIRD                 CO   1.75 INCH HAIL
05/22/98   YUMA                           SPOTTER REPORT

Local storm report, May 22, 6:43 PM MDT, 53 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GOODLAND KANSAS
643 PM MDT FRI MAY 22 1998

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

0642 PM    17 NE ST FRANCIS          KS   1 INCH HAIL
05/22/98   CHEYENNE                       SPOTTER REPORT

Local storm report, May 22, 6:58 PM MDT, 38 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GOODLAND KANSAS
658 PM MDT FRI MAY 22 1998

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

0635 PM    4 N BEECHER IS            CO   1.5 INCH HAIL
05/22/98   YUMA                           PING PONG HAIL 3 TO 5
                                          NORTH OF BEECHER ISLAND

0653 PM    17 NNW ST FRANCIS         KS   1.75 INCH HAIL
05/22/98   CHEYENNE                       EXTREME NW CORNER OF
                                          CHEYENNE COUNTY

Local storm report, May 22, 7:07 PM MDT, 29 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GOODLAND KANSAS
707 PM MDT FRI MAY 22 1998

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

0505 PM    9 N ST FRANCIS            KS   1 INCH HAIL
05/22/98   CHEYENNE

0650 PM    13 SSW WRAY               CO   .75 INCH HAIL
05/22/98   YUMA                           ALSO 60 MPH WIND.

0655 PM    7 NE IDALIA               CO   1.88 INCH HAIL
05/22/98   YUMA                           1 7/8 INCH HAIL

0704 PM    BENKELMAN                 NE   .75 INCH HAIL
05/22/98   DUNDY

Local storm report, May 22, 7:10 PM MDT, 26 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GOODLAND KANSAS
710 PM MDT FRI MAY 22 1998

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

0709 PM    9 N ST FRANCIS            KS   3 INCH HAIL
05/22/98   CHEYENNE

Local storm report, May 22, 7:13 PM MDT, 23 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GOODLAND KANSAS
713 PM MDT FRI MAY 22 1998

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

0711 PM    16 NW ST FRANCIS          KS   2.75 INCH HAIL
05/22/98   CHEYENNE

The office that day

Everything else NWS Goodland, KS issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 22, 6:38 PM MDT	Severe Thunderstorm Warning	GLD	Dundy	62 min
May 22, 7:20 PM MDT	Severe Thunderstorm Warning	GLD	Hitchcock	65 min
May 22, 7:38 PM MDT	Severe Thunderstorm Warning	GLD	Dundy	32 min
May 22, 8:00 PM MDT	Tornado Warning	GLD	Hitchcock	50 min
May 22, 8:34 PM MDT	Flash Flood Warning	GLD	Hitchcock	2 hr
May 22, 8:57 PM MDT	Severe Thunderstorm Warning	GLD	Red Willow	63 min

Nearby

Flash Flood Warnings in Nebraska, 1998 Every flash flood warning in 1998

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.