Severe Thunderstorm Warning 116, NWS Denver/Boulder, CO

Issued

Sep 1, 2000, 7:56 PM MDT (01:56 UTC)

Expired

Sep 1, 2000, 8:30 PM MDT

In force

34 min

Issued by

NWS Denver/Boulder, CO

Area

Whole counties; the outline is the Mesonet’s reconstruction

County Weld County, CO

The Cheyenne radar (KCYS), 63 km from the middle of the area, began a volume at 01:59 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.

000 
WUUS55 KBOU 020156
SVRDEN
COC123-020230-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE DENVER CO
756 PM MDT FRI SEP 1 2000

THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTH CENTRAL WELD COUNTY IN NORTHEAST COLORADO

* UNTIL 830 PM MDT

* AT 756 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM OVER BRIGGSDALE...OR ABOUT 24 MILES NORTHEAST
  OF GREELEY...MOVING NORTHEAST AT 25 MPH.

LOCATIONS IN THE WARNING INCLUDE...BUT ARE NOT LIMITED TO...KEOTA...
GROVER AND BRIGGSDALE.

SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE
WARNING. PREPARE TO MOVE TO A PLACE OF SAFETY IN A STURDY STRUCTURE
SUCH AS A BASEMENT OR SMALL INTERIOR ROOM IF A TORNADO IS SPOTTED.

IF SEVERE WEATHER APPROACHES YOUR AREA...GO INSIDE A STURDY SHELTER
AWAY FROM CREEK BEDS AND OTHER FLOOD-PRONE AREAS. REMEMBER...A SEVERE
THUNDERSTORM CAN PRODUCE LARGE DAMAGING HAIL...DAMAGING WINDS IN
EXCESS OF 55 MPH...DEADLY LIGHTNING...AND VERY HEAVY RAIN.

LAT...LON 4081 10443 4058 10437 4068 10399 4093 10405

KLEYLA

NWS Denver/Boulder, CO wrote its last area forecast discussion before this severe thunderstorm warning went out at Sep 1, 2:30 PM MDT, 5 hours 26 minutes earlier.

NORTHEAST AND NORTH CENTRAL COLORADO AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE DENVER COLORADO
230 PM MDT FRI SEP 1 2000

COULD BE ACTIVE AGAIN TNGT UNTIL LATE WITH APCHG SHT WV THAT IS
PROGD TO MOVE THRU ERN ZONES BTWN 12Z AND 18Z SAT.  NO SIG WX
SEEN YET IN CWA WITH A FAIRLY GOOD CLOUD SHIELD OMTNS...FTHLS
AND I-25 CORRIDOR.  LGTNG CHARTS SHOW TSTMS APCHG NWRN CO AND
LOOK FOR SOME TO DVLP IN OUR MTN ZNS BY DARK BUT SW FLOW WILL
REDUCE THREAT OF TSTMS IN PLAINS ZONES AND WILL GO WITH WIDELY
SCT POPS FOR TNGT.  ETA IS FASTEST AND WEAKEST WITH SHT WV TMW
AND BLV FM CVNCTN IN UT AND WRN CO THAT MAY BE TOO WEAK THRFR
FAVOR THE AVN/NGM SOLNS WHICH ARE A FEW HRS SLOWER AND STGR.
IN ANY EVENT WILL BE DRYER ONCE THIS SHT WV PASSES THUS LABOR
DAY WEEKEND WILL BE A GO DO IT TYPOE HOLIDAY WITH PLENTY OF
SUNSHINE IN THE DAYTIME.  APPEARS GRADS WILL BE STG ENUF BHND
SHT WV TO HAVE SOME WINDS TMW ESPCLY IN MTNS AND DOWN ERN FTHLS.
THIS DWNSLP FLOW WILL COUNTERACT THE SLGT FAL IN THKNS AND H7
TEMP VALUES EXPCTD THRFR LOOK FOR TEMPS AT OR PSBLY EVEN SLGTLY
HIER THAN TODAY FOR MOST OF PLAINS WITH LTL OR NO CHANGE IN MTNS.
BEYOND LABOR DAY CO WILL STILL BE UNDER SWLY FLOW THRU MIDWEEK
BUT UPPER TROF EXPECTED TO MOVE IN FROM W COAST ALONG WITH A SFC
COLD FRONT TUES NGT OR WED MRNG.  THIS IS ABOUT 24 HRS LATER THAN
PREV MRF SHOWED.  WILL DELAY CHANCE OF SHWRS/TSTMS TIL WED AND GO
WITH INCRSG CLDS FOR TUES ALTHO PSBL THAT A FEW SHWRS MAY DVLP
OMTNS BY LATE TUES.  INCRSG FLOW ALF SO LIKELY TO SEE MORE WIND
MANY AREAS TUES AND WED BUT TOO EARLY AND NOT EXPECTED TO BE STG
ENUF TO MERIT MENTN IN EFP.  TEMPS TO REMAIN MILD BUT CUD DIP SVRL
DEGS WED IF FROPA OCCURS EARLY ENUF AND NLY FLOW DVLPS OVER PLAINS.
GCF

DEN...NONE.

Severe Thunderstorm Warnings in Colorado, 2000Every severe thunderstorm warning in 2000

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.