Alert archive / Nebraska / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 113, NWS Hastings, NE
NWS Hastings, NE issued this severe thunderstorm warning at Jul 22, 1997, 12:17 PM CDT for Greeley County, Nebraska. It was in force for 28 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jul 22, 1997, 12:17 PM CDT (17:17 UTC)
- Expired
- Jul 22, 1997, 12:45 PM CDT
- In force
- 28 min
- Issued by
- NWS Hastings, NE
- Area
- Whole counties
County Greeley County, NE
The radar
The Grand Island radar (KUEX), 139 km from the middle of the area, began a volume at 17:19 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 12:00Z, 5.3 hours before the alert went out and 180 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
- 1959 J/kg
- Mixed-layer CIN
- -55 J/kg
- Mixed-layer LCL
- 757 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 121 m²/s²
- 0-3 km storm-relative helicity
- 138 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 5.4
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KGRI 221717 RRA SVRGRI NEC077-221745- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE HASTINGS NE 1217 PM CDT TUE JUL 22 1997 THE NATIONAL WEATHER SERVICE IN HASTINGS NE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1245 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN CENTRAL NEBRASKA ...NORTHEASTERN GREELEY COUNTY A SEVERE THUNDERSTORM CAPABLE OF PRODUCING HAIL TO 1 INCH IN DIAMETER WILL APPROACH SPALDING BY 1230 PM. MOVE INDOORS FOR PROTECTION FROM THIS STORM. AT 1215 PM...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 60 MILES NORTH OF GRAND ISLAND OR 10 MILES NORTHWEST OF SPALDING. THIS STORM IS MOVING SOUTHEAST AT 30 MPH. PEO>PLE IN THE WARNED AREA SHOULD GET INTO A REINFORCED SHELTER FOR PROTECTION FROM DAMAGING WINDS...LARGE HAIL...VERY HEAVY RAIN...AND DANGEROUS LIGHTNING. MLM/KD
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 22, 2:42 AM CDT, 9 hours 35 minutes earlier.
Area forecast discussion, Jul 22, 2:42 AM CDT, 9 hours 35 minutes before
CENTRAL NEBRASKA/NORTH CENTRAL KANSAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE HASTINGS NE 240 AM CDT TUE JUL 22 1997 AGAIN TODAY TEMPERATURES AND OUTSIDE CHANCES OF RAIN APPEAR TO BE THE FORECAST PROBLEMS OF THE DAY. 06Z SFC CHART SHOWED A WEAK FRONT SOMEWHERE IN SRN NEB WITH 70 DEWPOINTS ACROSS MOST OF THE ERN PTNS OF THE CWA. SOME FOG IS FORMING AND SOME IS LOCALLY DENSE. RADAR SHOWING AN ISOLATED TRW SW OF VTN. ALOFT CLOSED LOW OVER ND WITH S/W ACROSS THE DAKOTAS INTO NEB. STRONG HIGH PRESSURE FURTHER TO THE S AND SW. PLENTY OF MOISTURE AT 8H. MODELS SIMILIAR BUT THE NGM PICKS UP THE LOW IN ND BETTER. THIS FEATURE IS PROGGED TO MOVE EAST INTO MN BY TONIGHT BUT COULD SERVE AS A TRIGGER FOR TRW DEVELOPMENT. OTHER THAN THAT APPEARS UPPER HIGH OVER COLO STILL THE MAIN FEATURE ALOFT. AT THE SURFACE THE STATIONARY FRONT NOW IN THE AREA WILL PUSH EAST AS A WARM FRONT AS A TROF DEVELOPS IN MT AND MAKES ITS WAY INTO THE AREA. THE BEST SHOT OF GETTING ANY RAIN THE NEXT FEW DAYS APPEARS TO BE EARLY IN THE PERIOD WITH THE UPPER LOW MOVING ACROSS THE DAKOTAS OTHERWISE IT LOOKS LIKE HOT AND DUSTY CONDITIONS WILL RETURN. GRI BU 089/068/093 020 HEB BU 088/067/090 020 ODX BU 088/067/091 020 LXN BU 090/067/093 020 BLT BU 090/072/094 000 GRIFFITH
In the hours before
Special weather statement, Jul 22, 11:20 AM CDT, 57 minutes before
KSZ005>007-017>019-NEZ039>041-046>049-060>064-072>077-082>087-230500- SEVERE WEATHER OUTLOOK NATIONAL WEATHER SERVICE HASTINGS NE 1120 AM CDT TUE JUL 22 1997 ...SEVERE WEATHER OUTLOOK FOR SOUTH CENTRAL NEBRASKA AND PART OF NORTH CENTRAL KANSAS... SPOTTER ACTION...SPOTTER ACTIVATION MAY BE REQUIRED THIS AFTERNOON AND EVENING. SYNOPSIS... THUNDERSTORMS HAD DEVELOPED IN THE VICINITY OF AN UPPER LEVEL WEATHER SYSTEM ACROSS NORTH CENTRAL NEBRASKA. THESE STORMS WILL MOVE SOUTHEAST ACROSS CENTRAL NEBRASKA THIS AFTERNOON. SOME OF THESE STORMS COULD BECOME SEVERE AND PRODUCE LARGE HAIL AND DAMAGING WINDS IF THEY INTENSIFY IN THE MOIST AND UNSTABLE AIR IN PLACE ACROSS THE REGION. THE BEST CHANCE FOR SEVERE WEATHER WILL BE NORTHEAST OF A LINE FROM LOUP CITY TO GRAND ISLAND TO YORK...WHERE THE BEST LOW LEVEL CONVERGENCE WILL CONTINUE THROUGH MID AFTERNOON. THE THREAT OF SEVERE WEATHER COULD SHIFT SOUTH TOWARD THE KANSAS BORDER BY LATE IN THE DAY. THUNDERSTORMS COULD FORM AGAIN LATE TONIGHT AS A STALLED FRONTAL SYSTEM WHICH STRETCHED FROM WESTERN NEBRASKA INTO EASTERN KANSAS LIFTS NORTHEASTWARD OVERNIGHT. A FEW STRONG STORMS PRODUCING LARGE HAIL WILL ONCE AGAIN BE POSSIBLE...ESPECIALLY NORTH AND EAST OF THE TRI CITIES. DROZD
Nearby
Severe Thunderstorm Warnings in Nebraska, 1997Every severe thunderstorm warning in 1997
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.