Alert archive / Nebraska / Severe Thunderstorm Warnings in 2000
Severe Thunderstorm Warning 87, NWS Hastings, NE
NWS Hastings, NE issued this severe thunderstorm warning at Jul 1, 2000, 10:44 AM CDT for Valley County, Nebraska. It was in force for 46 min. 3 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Jul 1, 2000, 10:44 AM CDT (15:44 UTC)
- Expired
- Jul 1, 2000, 11:30 AM CDT
- In force
- 46 min
- Issued by
- NWS Hastings, NE
- Area
- Whole counties
County Valley County, NE
The radar
The North Platte radar (KLNX), 139 km from the middle of the area, began a volume at 15:46 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 1, 11:00 AM CDT | Hail 1.5 | Elyria, NE | |
| Jul 1, 11:12 AM CDT | Hail 1 | Evelyn Sharp Arpt, NE | |
| Jul 1, 11:15 AM CDT | Hail 1.75 | Elyria, NE |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.
The nearest sounding before it
N. Platte/Lee Bi, NE (KLBF), launched 12:00Z, 3.7 hours before the alert went out and 144 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
- 2735 J/kg
- Mixed-layer CIN
- -147 J/kg
- Mixed-layer LCL
- 851 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 207 m²/s²
- 0-3 km storm-relative helicity
- 348 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 14.4
The text
As transmitted, in the capitals the NWS used until 2016.
797 WUUS53 KGID 011544 SVRGRI NEC175-011630- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE HASTINGS NE 1044 AM CDT SAT JUL 1 2000 THE NATIONAL WEATHER SERVICE IN HASTINGS HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTHERN VALLEY COUNTY IN CENTRAL NEBRASKA * UNTIL 1130 AM CDT * AT 1043 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 5 MILES WEST OF FORT HARTSUFF STATE PARK...OR ABOUT 35 MILES NORTHEAST OF BROKEN BOW...MOVING EAST AT 10 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... ELYRIA AT 1050 AM CDT ORD AT 1100 AM CDT PEOPLE IN NORTHERN VALLEY COUNTY SHOULD SEEK SHELTER IN A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS. THE PRIMARY SEVERE WEATHER THREAT IS LARGE HAIL. $$ FAY LAT...LON 4178 9926 4155 9918 4152 9875 4172 9878 NNNN
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Hastings, NE wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 1, 3:03 AM CDT, 7 hours 41 minutes earlier.
Area forecast discussion, Jul 1, 3:03 AM CDT, 7 hours 41 minutes before
SOUTH CENTRAL NEBRASKA/NORTH CENTRAL KANSAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE HASTINGS NE 303 AM CDT SAT JUL 01 2000 ...CHALLENGE REMAINS THE CHANCE FOR STORMS TONIGHT... UPPER AIR ANALYSIS REVEALED A SHORTWAVE TROF AT H5 AND H7 NEAR SLC AT 00Z. OTHER NOTEWORTHY FEATURES INCLUDED A +18 H85 DEWPOINT AT OUN. SATELLITE LOOPS SHOWED THE SLC VORT MAX VERY DEFINED AND CROSSING INTO SW WYOMING...AND A SUBTROPICAL MOISTURE PLUME EXTENDING INTO THE NRN ROCKIES. SMALL AREA OF CONVECTION OVER NEBRASKA PANHANDLE...DISSIPATING. 06Z SURFACE ANALYSIS HAD DEWPOINTS RUNNING 5-10 DEGREES HIGHER THAN 24 HOURS AGO...WITH A POCKET OF 75 DEGREE SURFACE DEWPOINTS NEAR RED RIVER...UPSTREAM. THE CONVECTION SCATTERED OVER THE ROCKIES AND IN THE NEBRASKA PANHANDLE EARLY THIS MORNING IS INDICATIVE OF HOW EASY IT IS FOR THE SHORTWAVE ENERGY MOVING THROUGH THE BROAD UPPER RIDGE TO ACT ON THE SUBTROPICAL PLUME AND MARGINAL SBCAPE. EXTRAPOLATING THE SLC VORT MAX INTO THE NEBRASKA PANHANDLE NEAR MAX AFTERNOON HEATING SPELLS CONVECTIVE DEVELOPMENT ACROSS WESTERN NEBRASKA THIS AFTERNOON. WHAT HAPPENS TO THAT CONVECTION STEARS THE POP FORECAST FOR MY CWFA THIS AFTERNOON AND TONIGHT. MODEL WISE...THE ETA/MESOETA APPEARED TO PLACE THE SLC VORT MAX MOST ACCURATELY AT 06Z...AND ALSO REPRESENTED THE H85 MOIST POCKET BEST. LOOSLY USED THE MESOETA FOR GUIDANCE ON THIS PACKAGE. THE MESOETA TAKES THE MOIST H85 POCKET AND MOVES IT NORTH INTO THE CWFA THIS AFTERNOON...THEN PUSHES IT OFF INTO ERN NEBRASKA ON A SW H85 WIND BY 06Z. THIS DROPS THE CAPE VALUES DRAMATICALLY... ESPECIALLY WRN COUNTIES. DOUBT THAT WILL OCCUR TO THAT EXTENT...AND THINK THE AIRMASS IN MY CWFA SHOULD STILL BE FAIRLY UNSTABLE AT 03Z...WITH SURFACE DEWPOINTS IN MID TO UPPER 60S AND CAPES AROUND 1500 J/KG. MESOETA PROGS THE LOW LEVEL JET TO 45 KNOTS AT 06Z OVER CENTRAL COUNTIES. STORMS SHOULD RAPIDLY BE PROPAGATING SOUTH...AND RESULTING CORFIDI VECTORS NET MOVEMENT FOR A MCS OVER NRN NEBRASKA IS SOUTH-SOUTHEAST. HOWEVER THE MESOETA SHOWS THE CONVECTION DISSIPATING WITH LOSS OF HEATING BY 06Z...BEFORE GETTING MUCH FARTHER SOUTH THAN INTERSTATE 80. IF CAPE VALUES OVER ERN NEBRASKA ARE STILL HIGH AS MENTIONED ABOVE...MCS COULD ACTUALLY STRENGTHEN AS IT MOVES INTO DEEPER MOISTURE. THE 00Z NCAR MM5 MODEL IS SHOWING THE CONVECTION SPREADING OVER MUCH OF THE CWFA BY 06Z. THUS ALL AREAS WILL NEED SOME POP FOR TONIGHT...AND WILL CARRY HIGHEST POPS...UP TO 60 PERCENT...NORTH AND WEST...WITH 20-30 POPS SOUTH AND EAST. EXCEPTION MAY BE KS COUNTIES WHERE CHANCE MIGHT BE LESS THAN 20 PERCENT. MIGHT ALSO NEED A SLIGHT CHANCE FOR LATE AFTERNOON DEVELOPMENT ORD-LXN AREA. QUICK LOOK AT 06Z MESOETA RUN CONFIRMING ABOVE SCENARIO. MESOETA TAKES ANOTHER MINOR H7 WAVE INTO NEBRASKA AGAIN SUNDAY AFTERNOON/EVENING. THIS MIGHT BE THE WAVE CURRENTLY SHOWING UP OVER CENTRAL CALIFORNIA ON UPPER AIR ANALYSIS. HOWEVER BY THEN THE H7 TEMPERATURES WARM IN EXCESS OF +13...AND SOME CAPPING SHOULD BE IN PLACE. THUS WILL GO DRY SUNDAY...BUT MONITOR IN LATER FORECASTS. .GID...NONE. NIETFELD
The office that day
Everything else NWS Hastings, NE issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 1, 11:26 AM CDT | Severe Thunderstorm Warning | GID | Valley | 49 min |
Nearby
Severe Thunderstorm Warnings in Nebraska, 2000Every severe thunderstorm warning in 2000
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.