Alert archive / Colorado / Severe Thunderstorm Warnings in 2010

Severe Thunderstorm Warning 238, NWS Goodland, KS

July 21, 2010Yuma County, Colorado

NWS Goodland, KS issued this severe thunderstorm warning at Jul 21, 2010, 5:46 PM MDT for Yuma County, Colorado. It was in force for 59 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 21, 2010, 5:46 PM MDT (23:46 UTC)
Expired: Jul 21, 2010, 6:45 PM MDT
In force: 59 min
Issued by: NWS Goodland, KS
Area: Storm-based polygon
Hail: 1.0 in
Wind: 70.0 mph

County Yuma County, CO

The radar

The Goodland radar (KGLD), 94 km from the middle of the area, began a volume at 23:46 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.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jul 21, 4:04 PM MDT	Severe Thunderstorm Watch	SPC	7 hr

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 Goodland, KS wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 21, 2:25 PM MDT, 3 hours 21 minutes earlier.

Area forecast discussion, Jul 21, 2:25 PM MDT, 3 hours 21 minutes before

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Hazardous weather outlook, Jul 21, 10:24 AM MDT, 7 hours 22 minutes before

HAZARDOUS WEATHER OUTLOOK...CORRECTION
NATIONAL WEATHER SERVICE GOODLAND KS
1024 AM MDT WED JUL 21 2010

COZ090>092-KSZ001>004-013>016-027>029-041-042-NEZ079>081-221200-
YUMA-KIT CARSON-CHEYENNE CO-CHEYENNE
KS-RAWLINS-DECATUR-NORTON-SHERMAN-THOMAS-SHERIDAN-GRAHAM-WALLA
CE-LOGAN-GOVE-GREELEY-WICHITA-DUNDY-HITCHCOCK-RED WILLOW-
1024 AM MDT WED JUL 21 2010 /1124 AM CDT WED JUL 21 2010/

THIS HAZARDOUS WEATHER OUTLOOK IS FOR EXTREME SOUTHWEST
NEBRASKA...NORTHWEST KANSAS AND EAST CENTRAL COLORADO.

.DAY ONE...TODAY AND TONIGHT

SCATTERED THUNDERSTORMS WILL CONTINUE ACROSS THE ENTIRE AREA TODAY
AND TONIGHT. SOME OF THESE STORMS COULD BECOME SEVERE WITH LARGE
HAIL...DAMAGING WINDS...AND LOCALLY HEAVY RAINFALL. THE BEST CHANCE
FOR SEVERE THUNDERSTORMS WILL BE ALONG AND NORTH OF THE INTERSTATE.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

AN ACTIVE WEATHER PATTERN WILL CONTINUE THROUGH THIS PERIOD.
SEVERE THUNDERSTORMS WILL BE POSSIBLE THIS ENTIRE
TIME...ESPECIALLY FROM THURSDAY INTO FRIDAY. LOCALLY HEAVY
RAINFALL WILL BE A THREAT INTO THE BEGINNING OF NEXT WEEK.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE REQUIRED THIS AFTERNOON AND TONIGHT.

024

In the hours before

Special weather statement, Jul 21, 4:10 PM MDT, 1 hour 36 minutes before

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Special weather statement, Jul 21, 4:34 PM MDT, 1 hour 12 minutes before

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Special weather statement, Jul 21, 4:36 PM MDT, 1 hour 10 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GOODLAND KS
436 PM MDT WED JUL 21 2010

NEZ080-212300-
HITCHCOCK-
536 PM CDT WED JUL 21 2010

...THE NATIONAL WEATHER SERVICE IN GOODLAND HAS ISSUED A SIGNIFICANT
WEATHER ADVISORY FOR HITCHCOCK COUNTY IN SOUTHWEST NEBRASKA...

AT 534 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
STRONG THUNDERSTORM NEAR STRATTON NE...MOVING NORTHEAST AT 25 MPH.

HAIL TO THE SIZE OF A DIME...WIND GUSTS TO 55 MPH AND VERY HEAVY
RAIN WITH RATES OF ONE TO TWO INCHES PER HOUR CAN BE EXPECTED WITH
THIS STORM. THE INTENSE RAINFALL RATES WILL DROP VISIBILITIES
LOCALLY BELOW ONE MILE.

&&

LAT...LON 4007 10113 4017 10133 4035 10119 4034 10085
TIME...MOT...LOC 2236Z 214DEG 22KT 4020 10116

THEDE

Special weather statement, Jul 21, 4:41 PM MDT, 1 hour 5 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GOODLAND KS
441 PM MDT WED JUL 21 2010

COZ090-212315-
YUMA COUNTY-
441 PM MDT WED JUL 21 2010

...THE NATIONAL WEATHER SERVICE IN GOODLAND HAS ISSUED A SIGNIFICANT
WEATHER ADVISORY FOR YUMA COUNTY IN NORTHEAST COLORADO...

AT 439 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
STRONG THUNDERSTORM NEAR OTIS...OR 11 MILES WEST OF YUMA...MOVING
NORTHEAST AT 15 MPH.

PENNY TO NICKEL SIZE HAIL...WINDS TO 50 MPH AND VERY HEAVY RAINFALL
ARE EXPECTED WITH THIS STORM. THE COMMUNITY OF CLARKVILLE MAY BE
IMPACTED BY THIS STORM.

BE PREPARED TO TAKE SHELTER IN THE EVENT THESE STORMS INTENSIFY AND
BECOME SEVERE.

&&

LAT...LON 4044 10232 4043 10226 4010 10280 4034 10280
      4035 10278 4042 10278 4044 10275
TIME...MOT...LOC 2240Z 226DEG 15KT 4014 10292

THEDE

Special weather statement, Jul 21, 5:25 PM MDT, 21 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GOODLAND KS
525 PM MDT WED JUL 21 2010

COZ090-220030-
YUMA COUNTY-
525 PM MDT WED JUL 21 2010

...THE NATIONAL WEATHER SERVICE IN GOODLAND HAS ISSUED A SIGNIFICANT
WEATHER ADVISORY FOR YUMA COUNTY IN NORTHEAST COLORADO...

AT 518 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM 8 MILES SOUTH OF
OTIS TO 7 MILES NORTHEAST OF OTIS TO 6 MILES SOUTHEAST OF LONE
STAR...MOVING NORTHEAST AT EAST AT 20 MPH.

HAIL TO THE SIZE OF DIMES...WIND GUSTS TO 55 MPH AND VERY HEAVY RAIN
WITH RATES OF OVER 2 INCHES PER HOUR CAUSING SHARPLY REDUCED
VISIBILITIES ARE EXPECTED WITH THESE STORMS. A FEW AREAS MAY
EXPERIENCE SOME LOCALIZED FLOODING OF LOW LAND OR POOR DRAINAGE
AREAS. THIS INCLUDES THE COMMUNITIES OF YUMA...CLARKVILLE...ECKLEY
AND WAUNETA.

BE PREPARED TO TAKE SHELTER IN THE EVENT THESE STORMS INTENSIFY AND
BECOME SEVERE.

&&

LAT...LON 4044 10210 4027 10225 4004 10238 3998 10281
      3999 10281 4000 10280 4034 10280 4035 10278
      4043 10278
TIME...MOT...LOC 2323Z 260DEG 18KT 4004 10289 4019 10281
          4032 10271

THEDE

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 20, 7:15 PM MDT	Severe Thunderstorm Warning	GLD	Greeley	60 min
Jul 20, 8:08 PM MDT	Special Weather Statement	GLD	Wallace	67 min
Jul 20, 8:40 PM MDT	Severe Thunderstorm Warning	GLD	Greeley, Wallace	30 min
Jul 20, 10:22 PM MDT	Special Weather Statement	GLD	Sherman	23 min
Jul 20, 11:26 PM MDT	Special Weather Statement	GLD	Rawlins	34 min
Jul 20, 8:16 PM MDT	Special Weather Statement	GLD	Cheyenne	59 min
Jul 21, 4:41 PM MDT	Special Weather Statement	GLD	Yuma	34 min
Jul 21, 5:25 PM MDT	Special Weather Statement	GLD	Yuma	65 min
Jul 21, 4:10 PM MDT	Special Weather Statement	GLD	Red Willow	35 min
Jul 21, 4:34 PM MDT	Special Weather Statement	GLD	Red Willow	26 min
Jul 21, 4:36 PM MDT	Special Weather Statement	GLD	Hitchcock	24 min

Nearby

Severe Thunderstorm Warnings in Colorado, 2010 Every severe thunderstorm warning in 2010

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.