Alert archive / Wyoming / High Wind Warnings in 2021

High Wind Warning 22, NWS Riverton, WY

December 13, 20216 counties in Wyoming

NWS Riverton, WY issued this high wind warning at Dec 13, 2021, 2:28 AM MST for 6 counties in Wyoming. It took effect at Dec 13, 2021, 5:00 AM MST. It was in force for 39 hr. 6 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
Dec 13, 2021, 2:28 AM MST (09:28 UTC)
In effect from
Dec 13, 2021, 5:00 AM MST
Expired
Dec 14, 2021, 8:00 PM MST
In force
39 hr
Issued by
NWS Riverton, WY

Counties Fremont County, WY, Johnson County, WY, Natrona County, WY, Sublette County, WY, Sweetwater County, WY, Washakie County, WY

The radar

The Riverton/Lander radar (KRIW), 32 km from the middle of the area, began a volume at 09:26 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

TimeReportWhereRemark
Dec 13, 10:51 AM MSTNON-TSTM WND GST 586 Nw Mills, WYASOS STATION KCPR CASPER AIRPORT.
Dec 14, 8:05 AM MSTNON-TSTM WND GST 586 Nw Mills, WYASOS STATION KCPR CASPER AIRPORT.
Dec 14, 9:37 AM MSTNON-TSTM WND GST 626 Nw Mills, WYASOS STATION KCPR CASPER AIRPORT.
Dec 14, 9:56 AM MSTNON-TSTM WND GST 666 Nw Mills, WYASOS STATION KCPR CASPER AIRPORT.
Dec 14, 10:26 AM MSTNON-TSTM WND GST 581 Ssw Lander, WYASOS STATION KLND LANDER AIRPORT.
Dec 14, 11:01 AM MSTNON-TSTM WND GST 593 Nnw Buffalo, WYASOS STATION KBYG BUFFALO AIRPORT.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Riverton, WY (KRIW), launched 00:00Z, 9.5 hours before the alert went out and 26 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-pSkew-T log-p diagram, Riverton, WY at 00:00Z on 2021-12-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Riverton, WY at 00:00Z on 2021-12-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 104 square meters per square second.1939587897117136Sfc1 km3 km6 km9 kmRMLM
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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2229 m above ground
0-6 km bulk shear
74 kt
0-1 km storm-relative helicity
104 m²/s²
0-3 km storm-relative helicity
208 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

089 
WWUS75 KRIW 130928
NPWRIW

URGENT - WEATHER MESSAGE
National Weather Service Riverton WY
228 AM MST Mon Dec 13 2021

WYZ020-140000-
/O.UPG.KRIW.HW.A.0017.211213T1200Z-211215T0600Z/
/O.NEW.KRIW.HW.W.0022.211213T1200Z-211215T0600Z/
Natrona County Lower Elevations-
Including the city of Casper
228 AM MST Mon Dec 13 2021

...HIGH WIND WARNING IN EFFECT UNTIL 11 PM MST TUESDAY...

* WHAT...Southwest winds 30 to 40 mph with gusts up to 60 mph
  expected. Higher wind gusts are possible along Wyoming Boulevard 
  south as Casper.

* WHERE...Natrona County Lower Elevations.

* WHEN...Until 11 PM MST Tuesday.

* IMPACTS...Damaging winds are possible. Travel could be 
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Use caution if you must drive. In a parking lot, park
into the wind to minimize the possibility of your car door
hitting another parked vehicle.

$$

WYZ019-140000-
/O.UPG.KRIW.HW.A.0017.211213T1200Z-211215T0600Z/
/O.NEW.KRIW.HW.W.0022.211213T1200Z-211215T0600Z/
Green Mountains and Rattlesnake Range-
Including the city of Jeffrey City
228 AM MST Mon Dec 13 2021

...HIGH WIND WARNING IN EFFECT UNTIL 11 PM MST TUESDAY...

* WHAT...Southwest winds 35 to 50 mph with gusts to 60 to 75 mph 
  expected. The highest wind gusts will be in the higher 
  elevations.

* WHERE...Green Mountains and Rattlesnake Range.

* WHEN...Until 11 PM MST Tuesday.

* IMPACTS...Damaging winds are possible. Travel could be
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Use caution if you must drive. In a parking lot, park
into the wind to minimize the possibility of your car door
hitting another parked vehicle.

&&

$$

WYZ030-140000-
/O.CON.KRIW.HW.A.0017.211214T0300Z-211215T0600Z/
East Sweetwater County-
Including the city of Wamsutter
228 AM MST Mon Dec 13 2021

...HIGH WIND WATCH REMAINS IN EFFECT FROM THIS EVENING THROUGH
TUESDAY EVENING...

* WHAT...South to southwest winds 30 to 40 mph with gusts up to 
  60 mph possible.

* WHERE...East Sweetwater County. This includes Interstate 80 
  from Rock Springs to Wamsutter.

* WHEN...From 8 PM MST Monday through 11 PM MST Tuesday night.

* IMPACTS...Damaging winds are possible. Travel could be 
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Fasten loose objects or shelter objects in a safe
location prior to the onset of winds.

&&

$$

WYZ018-140000-
/O.CON.KRIW.HW.A.0017.211214T0900Z-211215T0600Z/
Lander Foothills-
Including the city of Lander
228 AM MST Mon Dec 13 2021

...HIGH WIND WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH
TUESDAY EVENING...

* WHAT...South winds 30 to 40 mph with gusts up to 60 mph 
  possible.

* WHERE...Lander Foothills.

* WHEN...From 2 AM MST Tuesday through 11 PM MST Tuesday night.

* IMPACTS...Damaging winds are possible. Travel could be 
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Fasten loose objects or shelter objects in a safe
location prior to the onset of winds.

&&

$$

WYZ015-140000-
/O.CON.KRIW.HW.A.0017.211214T0300Z-211215T0600Z/
Wind River Mountains East-
228 AM MST Mon Dec 13 2021

...HIGH WIND WATCH REMAINS IN EFFECT FROM THIS EVENING THROUGH
TUESDAY EVENING...

* WHAT...Southwest winds 45 to 55 mph with gusts up to 75 mph, 
  or higher possible.

* WHERE...Wind River Mountains East. This includes Red Canyon to 
  South Pass.

* WHEN...From 8 PM MST Monday through 11 PM MST Tuesday night.

* IMPACTS...Damaging winds are possible. Travel could be 
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Fasten loose objects or shelter objects in a safe
location prior to the onset of winds.

&&

$$

WYZ009-011-140000-
/O.CON.KRIW.HW.A.0017.211214T0600Z-211215T0600Z/
Bighorn Mountains Southeast-Southeast Johnson County-
Including the city of Kaycee
228 AM MST Mon Dec 13 2021

...HIGH WIND WATCH REMAINS IN EFFECT FROM THIS EVENING THROUGH
TUESDAY EVENING...

* WHAT...Southwest winds 30 to 40 mph with gusts up to 60 mph 
  possible for lower elevations. Southwest winds 45 to 55 mph 
  with gusts to 75 mph possible in the mountains.

* WHERE...Bighorn Mountains Southeast and Southern Johnson 
  County. This includes Interstate 25.

* WHEN...From 11 PM MST Monday to 11 PM MST Tuesday night.

* IMPACTS...Damaging winds are possible. Travel could be 
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Fasten loose objects or shelter objects in a safe
location prior to the onset of winds.

&&

$$

For more information from the National Weather Service visit
https://weather.gov/riw
7 follow-up statements
472 
WWUS75 KRIW 131631
NPWRIW

URGENT - WEATHER MESSAGE
National Weather Service Riverton WY
931 AM MST Mon Dec 13 2021

WYZ015-132300-
/O.UPG.KRIW.HW.A.0017.211214T0300Z-211215T0600Z/
/O.EXA.KRIW.HW.W.0022.000000T0000Z-211215T0600Z/
Wind River Mountains East-
931 AM MST Mon Dec 13 2021

...HIGH WIND WARNING IN EFFECT UNTIL 11 PM MST TUESDAY...

* WHAT...Southwest winds 45 to 55 mph with gusts up to 75 mph.

* WHERE...Wind River Mountains East. This includes Red Canyon to
  South Pass.

* WHEN...Until 11 PM MST Tuesday.

* IMPACTS...Damaging winds are possible. Travel could be 
  difficult, especially for high profile vehicles.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Fasten loose objects or shelter objects in a safe
location prior to the onset of winds.

&&

$$

WYZ020-132300-
/O.CON.KRIW.HW.W.0022.000000T0000Z-211215T0600Z/
Natrona County Lower Elevations-
Including the city of Casper
931 AM MST Mon Dec 13 2021

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 11 PM MST TUESDAY...

* WHAT...Southwest winds 30 to 40 mph with gusts up to 65 mph.
  Higher wind gusts are possible along Wyoming Boulevard south as
  Casper.

* WHERE...Natrona County Lower Elevations.

* WHEN...Until 11 PM MST Tuesday.

* IMPACTS...Damaging winds are possible. Travel could be 
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Use caution if you must drive. In a parking lot, park
into the wind to minimize the possibility of your car door
hitting another parked vehicle.

$$

WYZ019-132300-
/O.CON.KRIW.HW.W.0022.000000T0000Z-211215T0600Z/
Green Mountains and Rattlesnake Range-
Including the city of Jeffrey City
931 AM MST Mon Dec 13 2021

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 11 PM MST TUESDAY...

* WHAT...Southwest winds 35 to 50 mph with gusts to 60 to 75 mph 
  expected. The highest wind gusts will be in the higher 
  elevations.

* WHERE...Green Mountains and Rattlesnake Range.

* WHEN...Until 11 PM MST Tuesday.

* IMPACTS...Damaging winds are possible. Travel could be 
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Use caution if you must drive. In a parking lot, park
into the wind to minimize the possibility of your car door
hitting another parked vehicle.

&&

$$

WYZ030-132300-
/O.CON.KRIW.HW.A.0017.211214T0300Z-211215T0600Z/
East Sweetwater County-
Including the city of Wamsutter
931 AM MST Mon Dec 13 2021

...HIGH WIND WATCH REMAINS IN EFFECT FROM 8 PM MST THIS EVENING
THROUGH TUESDAY EVENING...

* WHAT...South winds 25 to 35 mph with gusts up to 65 mph 
  possible.

* WHERE...East Sweetwater County. This includes Interstate 80 
  from Rock Springs to Wamsutter.

* WHEN...From 8 PM MST Monday through 11 PM MST Tuesday night.

* IMPACTS...Damaging winds are possible. Travel could be 
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Fasten loose objects or shelter objects in a safe
location prior to the onset of winds.

&&

$$

WYZ018-132300-
/O.CON.KRIW.HW.A.0017.211214T0900Z-211215T0600Z/
Lander Foothills-
Including the city of Lander
931 AM MST Mon Dec 13 2021

...HIGH WIND WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH
TUESDAY EVENING...

* WHAT...South winds 30 to 40 mph with gusts up to 60 mph 
  possible.

* WHERE...Lander Foothills.

* WHEN...From 2 AM MST Tuesday through 11 PM MST Tuesday night.

* IMPACTS...Damaging winds are possible. Travel could be 
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Fasten loose objects or shelter objects in a safe
location prior to the onset of winds.

&&

$$

WYZ009-011-132300-
/O.CON.KRIW.HW.A.0017.211214T0600Z-211215T0600Z/
Bighorn Mountains Southeast-Southeast Johnson County-
Including the city of Kaycee
931 AM MST Mon Dec 13 2021

...HIGH WIND WATCH REMAINS IN EFFECT FROM THIS EVENING THROUGH
TUESDAY EVENING...

* WHAT...Southwest winds 30 to 40 mph with gusts up to 60 mph 
  possible for lower elevations. Southwest winds 45 to 55 mph 
  with gusts to 75 mph possible in the mountains.

* WHERE...Bighorn Mountains Southeast and Southern Johnson 
  County. This includes Interstate 25.

* WHEN...From 11 PM MST Monday to 11 PM MST Tuesday night.

* IMPACTS...Damaging winds are possible. Travel could be 
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Fasten loose objects or shelter objects in a safe
location prior to the onset of winds.

&&

$$

For more information from the National Weather Service visit
https://weather.gov/riw
412 
WWUS75 KRIW 132012
NPWRIW

URGENT - WEATHER MESSAGE
National Weather Service Riverton WY
112 PM MST Mon Dec 13 2021

WYZ020-140400-
/O.EXT.KRIW.HW.W.0022.000000T0000Z-211215T1500Z/
Natrona County Lower Elevations-
Including the city of Casper
112 PM MST Mon Dec 13 2021

...HIGH WIND WARNING NOW IN EFFECT UNTIL 8 AM MST WEDNESDAY...

* WHAT...Southwest winds 35 to 45 mph with gusts up to 70 mph.
  Higher wind gusts are possible along Wyoming Boulevard south as
  Casper.

* WHERE...Natrona County Lower Elevations.

* WHEN...Until 8 AM MST Wednesday.

* IMPACTS...Damaging winds are possible. Travel could be 
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Use caution if you must drive. In a parking lot, park
into the wind to minimize the possibility of your car door
hitting another parked vehicle.

$$

WYZ019-140400-
/O.EXT.KRIW.HW.W.0022.000000T0000Z-211215T1500Z/
Green Mountains and Rattlesnake Range-
Including the city of Jeffrey City
112 PM MST Mon Dec 13 2021

...HIGH WIND WARNING NOW IN EFFECT UNTIL 8 AM MST WEDNESDAY...

* WHAT...Southwest winds 30 to 40 mph with gusts up to 70 mph in
  the highest elevations. Lower elevation areas will see sustained
  southwest winds 20 to 30 mph with gusts up to 60 mph.

* WHERE...Green Mountains and Rattlesnake Range.

* WHEN...Until 8 AM MST Wednesday.

* IMPACTS...Damaging winds are possible. Travel could be 
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Use caution if you must drive. In a parking lot, park
into the wind to minimize the possibility of your car door
hitting another parked vehicle.

&&

$$

WYZ015-140400-
/O.EXT.KRIW.HW.W.0022.000000T0000Z-211215T1200Z/
Wind River Mountains East-
112 PM MST Mon Dec 13 2021

...HIGH WIND WARNING NOW IN EFFECT UNTIL 5 AM MST WEDNESDAY...

* WHAT...Southwest winds 25 to 35 mph with gusts up to 70 mph.

* WHERE...Wind River Mountains East. This includes Red Canyon to 
  South Pass.

* WHEN...Until 5 AM MST Wednesday.

* IMPACTS...Damaging winds are possible. Travel could be 
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Fasten loose objects or shelter objects in a safe
location prior to the onset of winds.

&&

$$

WYZ030-140400-
/O.EXT.KRIW.HW.A.0017.211214T0900Z-211215T1500Z/
East Sweetwater County-
Including the city of Wamsutter
112 PM MST Mon Dec 13 2021

...HIGH WIND WATCH NOW IN EFFECT FROM LATE TONIGHT THROUGH
WEDNESDAY MORNING...

* WHAT...South winds 30 to 40 mph with gusts up to 65 mph 
  possible.

* WHERE...East Sweetwater County. This includes Interstate 80 
  from Rock Springs to Wamsutter.

* WHEN...From late tonight through Wednesday morning.

* IMPACTS...Damaging winds are possible. Travel could be 
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Fasten loose objects or shelter objects in a safe
location prior to the onset of winds.

&&

$$

WYZ009-011-140400-
/O.EXT.KRIW.HW.A.0017.211214T0900Z-211215T1500Z/
Bighorn Mountains Southeast-Southeast Johnson County-
Including the city of Kaycee
112 PM MST Mon Dec 13 2021

...HIGH WIND WATCH NOW IN EFFECT FROM LATE TONIGHT THROUGH
WEDNESDAY MORNING...

* WHAT...Southwest winds 35 to 45 mph with gusts up to 75 mph
  possible in the highest elevations. Southwest winds 25 to 35 mph
  with gusts up to 60 mph in lower elevation areas.  

* WHERE...Bighorn Mountains Southeast and Southern Johnson 
  County. This includes Interstate 25.

* WHEN...From late tonight through Wednesday morning.

* IMPACTS...Damaging winds are possible. Travel could be 
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Fasten loose objects or shelter objects in a safe
location prior to the onset of winds.

&&

$$

WYZ018-140400-
/O.CON.KRIW.HW.A.0017.211214T0900Z-211215T0600Z/
Lander Foothills-
Including the city of Lander
112 PM MST Mon Dec 13 2021

...HIGH WIND WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH
TUESDAY EVENING...

* WHAT...South winds 25 to 35 mph with gusts up to 60 mph 
  possible.

* WHERE...Lander Foothills.

* WHEN...From late tonight through Tuesday evening.

* IMPACTS...Damaging winds are possible. Travel could be 
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Fasten loose objects or shelter objects in a safe
location prior to the onset of winds.

&&

$$

For more information from the National Weather Service visit
https://weather.gov/riw
456 
WWUS75 KRIW 140301
NPWRIW

URGENT - WEATHER MESSAGE
National Weather Service Riverton WY
801 PM MST Mon Dec 13 2021

WYZ018-141200-
/O.UPG.KRIW.HW.A.0017.211214T0900Z-211215T0600Z/
/O.EXB.KRIW.HW.W.0022.211214T0900Z-211215T0600Z/
Lander Foothills-
Including the city of Lander
801 PM MST Mon Dec 13 2021

...HIGH WIND WARNING IN EFFECT FROM 2 AM TO 11 PM MST TUESDAY...

* WHAT...South winds 30 to 40 mph with gusts 60 to 65 mph 
  expected.

* WHERE...Lander Foothills.

* WHEN...From 2 AM to 11 PM MST Tuesday.

* IMPACTS...Damaging winds are possible. Travel could be 
  difficult, especially for high profile vehicles.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Use caution if you must drive. In a parking lot, park
into the wind to minimize the possibility of your car door
hitting another parked vehicle.

&&

$$

WYZ030-141200-
/O.UPG.KRIW.HW.A.0017.211214T0900Z-211215T1500Z/
/O.EXB.KRIW.HW.W.0022.211214T0900Z-211215T1500Z/
East Sweetwater County-
Including the city of Wamsutter
801 PM MST Mon Dec 13 2021

...HIGH WIND WARNING IN EFFECT FROM 2 AM TUESDAY TO 8 AM MST
WEDNESDAY...

* WHAT...South winds 30 to 40 mph with gusts up to 65 mph 
  expected.

* WHERE...East Sweetwater County.

* WHEN...From 2 AM Tuesday to 8 AM MST Wednesday.

* IMPACTS...Damaging winds are possible. Travel could be 
  difficult, especially for high profile vehicles.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Use caution if you must drive. In a parking lot, park
into the wind to minimize the possibility of your car door
hitting another parked vehicle.

&&

$$

WYZ009-011-141200-
/O.UPG.KRIW.HW.A.0017.211214T0900Z-211215T1500Z/
/O.EXB.KRIW.HW.W.0022.211214T0900Z-211215T1500Z/
Bighorn Mountains Southeast-Southeast Johnson County-
Including the city of Kaycee
801 PM MST Mon Dec 13 2021

...HIGH WIND WARNING IN EFFECT FROM 2 AM TUESDAY TO 8 AM MST
WEDNESDAY...

* WHAT...Southwest winds 30 to 40 mph with gusts 60 to 65 mph in
  Southern Johnson County. In the mountains wind speeds of 45 to
  55 mph with gusts to 75 mph are expected.

* WHERE...Bighorn Mountains Southeast and Southern Johnson 
  County.

* WHEN...From 2 AM Tuesday to 8 AM MST Wednesday.

* IMPACTS...Damaging winds are possible. Travel could be 
  difficult, especially for high profile vehicles.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Use caution if you must drive. In a parking lot, park
into the wind to minimize the possibility of your car door
hitting another parked vehicle.

&&

$$

WYZ020-141200-
/O.CON.KRIW.HW.W.0022.000000T0000Z-211215T1500Z/
Natrona County Lower Elevations-
Including the city of Casper
801 PM MST Mon Dec 13 2021

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 8 AM MST WEDNESDAY...

* WHAT...Southwest winds 35 to 45 mph with gusts up to 70 mph.
  Higher wind gusts are possible along Wyoming Boulevard on the
  south side of Casper.

* WHERE...Natrona County Lower Elevations.

* WHEN...Until 8 AM MST Wednesday.

* IMPACTS...Damaging winds are possible. Travel could be 
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Use caution if you must drive. In a parking lot, park
into the wind to minimize the possibility of your car door
hitting another parked vehicle.

$$

WYZ019-141200-
/O.CON.KRIW.HW.W.0022.000000T0000Z-211215T1500Z/
Green Mountains and Rattlesnake Range-
Including the city of Jeffrey City
801 PM MST Mon Dec 13 2021

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 8 AM MST WEDNESDAY...

* WHAT...Southwest winds 40 to 50 mph with gusts up to 75 mph in
  the highest elevations. Wind gusts from Jeffrey City to Beaver
  Rim will be 55 to 65 mph.

* WHERE...Green Mountains and Rattlesnake Range.

* WHEN...Until 8 AM MST Wednesday.

* IMPACTS...Damaging winds are possible. Travel could be 
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Use caution if you must drive. In a parking lot, park
into the wind to minimize the possibility of your car door
hitting another parked vehicle.

&&

$$

WYZ015-141200-
/O.CON.KRIW.HW.W.0022.000000T0000Z-211215T1200Z/
Wind River Mountains East-
801 PM MST Mon Dec 13 2021

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 5 AM MST WEDNESDAY...

* WHAT...Southwest winds 45 to 55 mph with gusts up to 75 mph.

* WHERE...Wind River Mountains East. This includes Red Canyon to 
  South Pass.

* WHEN...Until 5 AM MST Wednesday.

* IMPACTS...Damaging winds are possible. Travel could be 
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Fasten loose objects or shelter objects in a safe
location prior to the onset of winds.

&&

$$

For more information from the National Weather Service visit
https://weather.gov/riw
015 
WWUS75 KRIW 141015
NPWRIW

URGENT - WEATHER MESSAGE
National Weather Service Riverton WY
315 AM MST Tue Dec 14 2021

WYZ020-150200-
/O.CON.KRIW.HW.W.0022.000000T0000Z-211215T1500Z/
Natrona County Lower Elevations-
Including the city of Casper
315 AM MST Tue Dec 14 2021

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 8 AM MST WEDNESDAY...

* WHAT...Southwest winds 30 to 45 mph with gusts up to 70 mph.
  Higher wind gusts are possible along Wyoming Boulevard on the
  south side of Casper.

* WHERE...Natrona County Lower Elevations.

* WHEN...Until 8 AM MST Wednesday.

* IMPACTS...Damaging winds are possible. Travel could be 
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

WYZ019-150200-
/O.CON.KRIW.HW.W.0022.000000T0000Z-211215T1500Z/
Green Mountains and Rattlesnake Range-
Including the city of Jeffrey City
315 AM MST Tue Dec 14 2021

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 8 AM MST WEDNESDAY...

* WHAT...Southwest winds 35 to 45 mph with gusts up to 75 mph in
  higher elevations. Wind gusts from Jeffrey City to Beaver Rim
  will be 55 to 65 mph.

* WHERE...Green Mountains and Rattlesnake Range.

* WHEN...Until 8 AM MST Wednesday.

* IMPACTS...Damaging winds are possible. Travel could be 
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

WYZ015-150200-
/O.CON.KRIW.HW.W.0022.000000T0000Z-211215T1200Z/
Wind River Mountains East-
315 AM MST Tue Dec 14 2021

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 5 AM MST WEDNESDAY...

* WHAT...Southwest winds 40 to 50 mph with gusts up to 70 mph.

* WHERE...Wind River Mountains East. This includes Red Canyon to 
  South Pass.

* WHEN...Until 5 AM MST Wednesday.

* IMPACTS...Damaging winds are possible. Travel could be 
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

WYZ018-150200-
/O.CON.KRIW.HW.W.0022.000000T0000Z-211215T0600Z/
Lander Foothills-
Including the city of Lander
315 AM MST Tue Dec 14 2021

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 11 PM MST THIS
EVENING...

* WHAT...South winds 30 to 40 mph with gusts up to 65 mph.

* WHERE...Lander Foothills.

* WHEN...Until 11 PM MST this evening.

* IMPACTS...Damaging winds are possible. Travel could be 
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

WYZ030-150200-
/O.CON.KRIW.HW.W.0022.000000T0000Z-211215T1500Z/
East Sweetwater County-
Including the city of Wamsutter
315 AM MST Tue Dec 14 2021

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 8 AM MST WEDNESDAY...

* WHAT...South winds 30 to 40 mph with gusts up to 65 mph.

* WHERE...East Sweetwater County.

* WHEN...Until 8 AM MST Wednesday.

* IMPACTS...Damaging winds are possible. Travel could be 
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

WYZ009-011-150200-
/O.CON.KRIW.HW.W.0022.000000T0000Z-211215T1500Z/
Bighorn Mountains Southeast-Southeast Johnson County-
Including the city of Kaycee
315 AM MST Tue Dec 14 2021

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 8 AM MST WEDNESDAY...

* WHAT...Southwest winds 30 to 40 mph with gusts up to 65 mph in
  Southern Johnson County. Gusts to 75 mph can be expected across
  higher elevations.

* WHERE...Bighorn Mountains Southeast and Southern Johnson 
  County.

* WHEN...Until 8 AM MST Wednesday.

* IMPACTS...Damaging winds are possible. Travel could be 
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

For more information from the National Weather Service visit
https://weather.gov/riw
754 
WWUS75 KRIW 141728
NPWRIW

URGENT - WEATHER MESSAGE
National Weather Service Riverton WY
1028 AM MST Tue Dec 14 2021

WYZ020-150300-
/O.EXT.KRIW.HW.W.0022.000000T0000Z-211215T0300Z/
Natrona County Lower Elevations-
Including the city of Casper
1028 AM MST Tue Dec 14 2021

...HIGH WIND WARNING NOW IN EFFECT UNTIL 8 PM MST THIS EVENING...

* WHAT...Southwest winds 30 to 45 mph with gusts up to 70 mph. 
  Higher wind gusts are possible along Wyoming Boulevard on the 
  south side of Casper.

* WHERE...Natrona County Lower Elevations.

* WHEN...Until 8 PM MST this evening.

* IMPACTS...Damaging winds are possible. Travel could be 
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Use caution if you must drive. In a parking lot, park
into the wind to minimize the possibility of your car door
hitting another parked vehicle.

&&

$$

WYZ019-150300-
/O.EXT.KRIW.HW.W.0022.000000T0000Z-211215T0300Z/
Green Mountains and Rattlesnake Range-
Including the city of Jeffrey City
1028 AM MST Tue Dec 14 2021

...HIGH WIND WARNING NOW IN EFFECT UNTIL 8 PM MST THIS EVENING...

* WHAT...Southwest winds 35 to 45 mph with gusts up to 75 mph in 
  higher elevations. Wind gusts from Jeffrey City to Beaver Rim 
  will be 55 to 65 mph.

* WHERE...Green Mountains and Rattlesnake Range.

* WHEN...Until 8 PM MST this evening.

* IMPACTS...Damaging winds are possible. Travel could be 
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Use caution if you must drive. In a parking lot, park
into the wind to minimize the possibility of your car door
hitting another parked vehicle.

&&

$$

WYZ015-150300-
/O.EXT.KRIW.HW.W.0022.000000T0000Z-211215T0300Z/
Wind River Mountains East-
1028 AM MST Tue Dec 14 2021

...HIGH WIND WARNING NOW IN EFFECT UNTIL 8 PM MST THIS EVENING...

* WHAT...Southwest winds 40 to 50 mph with gusts up to 70 mph.

* WHERE...Wind River Mountains East. This includes Red Canyon to 
  South Pass.

* WHEN...Until 8 PM MST this evening.

* IMPACTS...Damaging winds are possible. Travel could be 
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Use caution if you must drive. 

&&

$$

WYZ018-150300-
/O.EXT.KRIW.HW.W.0022.000000T0000Z-211215T0300Z/
Lander Foothills-
Including the city of Lander
1028 AM MST Tue Dec 14 2021

...HIGH WIND WARNING NOW IN EFFECT UNTIL 8 PM MST THIS EVENING...

* WHAT...South to southwest winds 30 to 40 mph with gusts up to 
  65 mph.

* WHERE...Lander Foothills.

* WHEN...Until 8 PM MST this evening.

* IMPACTS...Damaging winds are possible. Travel could be 
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Use caution if you must drive. In a parking lot, park
into the wind to minimize the possibility of your car door
hitting another parked vehicle.

&&

$$

WYZ030-150300-
/O.EXT.KRIW.HW.W.0022.000000T0000Z-211215T0300Z/
East Sweetwater County-
Including the city of Wamsutter
1028 AM MST Tue Dec 14 2021

...HIGH WIND WARNING NOW IN EFFECT UNTIL 8 PM MST THIS EVENING...

* WHAT...South winds 30 to 40 mph with gusts up to 65 mph.

* WHERE...East Sweetwater County.

* WHEN...Until 8 PM MST this evening.

* IMPACTS...Damaging winds are possible. Travel could be
  difficult, especially for high profile vehicles. This will be a
  strong crosswind across Interstate 80. 

* ADDITIONAL DETAILS...South winds with gusts of 50 to 55 mph,
  with an isolated gust up to 60 mph, will remain possible
  tonight.  

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Use caution if you must drive. In a parking lot, park
into the wind to minimize the possibility of your car door
hitting another parked vehicle.

&&

$$

WYZ009-011-150300-
/O.EXT.KRIW.HW.W.0022.000000T0000Z-211215T0300Z/
Bighorn Mountains Southeast-Southeast Johnson County-
Including the city of Kaycee
1028 AM MST Tue Dec 14 2021

...HIGH WIND WARNING NOW IN EFFECT UNTIL 8 PM MST THIS EVENING...

* WHAT...Southwest winds 30 to 40 mph with gusts up to 65 mph in 
  Southern Johnson County. Gusts to 75 mph can be expected 
  across higher elevations.

* WHERE...Bighorn Mountains Southeast and Southern Johnson 
  County.

* WHEN...Until 8 PM MST this evening.

* IMPACTS...Damaging winds are possible. Travel could be 
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Use caution if you must drive. In a parking lot, park
into the wind to minimize the possibility of your car door
hitting another parked vehicle.
&&

$$

For more information from the National Weather Service visit
https://weather.gov/riw
199 
WWUS75 KRIW 141840
NPWRIW

URGENT - WEATHER MESSAGE
National Weather Service Riverton WY
1140 AM MST Tue Dec 14 2021

WYZ016-150300-
/O.EXA.KRIW.HW.W.0022.000000T0000Z-211215T0300Z/
Upper Wind River Basin-
Including the city of Dubois
1140 AM MST Tue Dec 14 2021

...HIGH WIND WARNING IN EFFECT UNTIL 8 PM MST THIS EVENING...

* WHAT...South winds 30 to 40 mph with gusts up to 60 to 70 mph.

* WHERE...Upper Wind River Basin.

* WHEN...Until 8 PM MST this evening.

* IMPACTS...Damaging winds are possible. Travel could be
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

WYZ020-150300-
/O.CON.KRIW.HW.W.0022.000000T0000Z-211215T0300Z/
Natrona County Lower Elevations-
Including the city of Casper
1140 AM MST Tue Dec 14 2021

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 8 PM MST THIS
EVENING...

* WHAT...Southwest winds 30 to 45 mph with gusts up to 70 mph. 
  Higher wind gusts are possible along Wyoming Boulevard on the 
  south side of Casper.

* WHERE...Natrona County Lower Elevations.

* WHEN...Until 8 PM MST this evening.

* IMPACTS...Damaging winds are possible. Travel could be
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Use caution if you must drive. In a parking lot, park
into the wind to minimize the possibility of your car door
hitting another parked vehicle.

&&

$$

WYZ019-150300-
/O.CON.KRIW.HW.W.0022.000000T0000Z-211215T0300Z/
Green Mountains and Rattlesnake Range-
Including the city of Jeffrey City
1140 AM MST Tue Dec 14 2021

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 8 PM MST THIS
EVENING...

* WHAT...Southwest winds 35 to 45 mph with gusts up to 75 mph in 
  higher elevations. Wind gusts from Jeffrey City to Beaver Rim 
  will be 55 to 65 mph.

* WHERE...Green Mountains and Rattlesnake Range.

* WHEN...Until 8 PM MST this evening.

* IMPACTS...Damaging winds are possible. Travel could be
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Use caution if you must drive. In a parking lot, park
into the wind to minimize the possibility of your car door
hitting another parked vehicle.

&&

$$

WYZ015-150300-
/O.CON.KRIW.HW.W.0022.000000T0000Z-211215T0300Z/
Wind River Mountains East-
1140 AM MST Tue Dec 14 2021

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 8 PM MST THIS
EVENING...

* WHAT...Southwest winds 40 to 50 mph with gusts up to 70 mph.

* WHERE...Wind River Mountains East. This includes Red Canyon to 
  South Pass.

* WHEN...Until 8 PM MST this evening.

* IMPACTS...Damaging winds are possible. Travel could be
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Use caution if you must drive.

&&

$$

WYZ018-150300-
/O.CON.KRIW.HW.W.0022.000000T0000Z-211215T0300Z/
Lander Foothills-
Including the city of Lander
1140 AM MST Tue Dec 14 2021

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 8 PM MST THIS
EVENING...

* WHAT...South to southwest winds 30 to 40 mph with gusts up to 
  65 mph.

* WHERE...Lander Foothills.

* WHEN...Until 8 PM MST this evening.

* IMPACTS...Damaging winds are possible. Travel could be
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Use caution if you must drive. In a parking lot, park
into the wind to minimize the possibility of your car door
hitting another parked vehicle.

&&

$$

WYZ030-150300-
/O.CON.KRIW.HW.W.0022.000000T0000Z-211215T0300Z/
East Sweetwater County-
Including the city of Wamsutter
1140 AM MST Tue Dec 14 2021

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 8 PM MST THIS
EVENING...

* WHAT...South winds 30 to 40 mph with gusts up to 65 mph.

* WHERE...East Sweetwater County.

* WHEN...Until 8 PM MST this evening.

* IMPACTS...Damaging winds are possible. Travel could be 
  difficult, especially for high profile vehicles. This will be 
  a strong crosswind across Interstate 80.

* ADDITIONAL DETAILS...South winds with gusts of 50 to 55 mph, 
  with an isolated gust up to 60 mph, will remain possible 
  tonight.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Use caution if you must drive. In a parking lot, park
into the wind to minimize the possibility of your car door
hitting another parked vehicle.

&&

$$

WYZ009-011-150300-
/O.CON.KRIW.HW.W.0022.000000T0000Z-211215T0300Z/
Bighorn Mountains Southeast-Southeast Johnson County-
Including the city of Kaycee
1140 AM MST Tue Dec 14 2021

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 8 PM MST THIS
EVENING...

* WHAT...Southwest winds 30 to 40 mph with gusts up to 65 mph in 
  Southern Johnson County. Gusts to 75 mph can be expected 
  across higher elevations.

* WHERE...Bighorn Mountains Southeast and Southern Johnson 
  County.

* WHEN...Until 8 PM MST this evening.

* IMPACTS...Damaging winds are possible. Travel could be
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Use caution if you must drive. In a parking lot, park
into the wind to minimize the possibility of your car door
hitting another parked vehicle. 
&&

$$

For more information from the National Weather Service visit
https://weather.gov/riw
480 
WWUS75 KRIW 150251
NPWRIW

URGENT - WEATHER MESSAGE
National Weather Service Riverton WY
751 PM MST Tue Dec 14 2021

WYZ020-150400-
/O.EXP.KRIW.HW.W.0022.000000T0000Z-211215T0300Z/
Natrona County Lower Elevations-
Including the city of Casper
751 PM MST Tue Dec 14 2021

...HIGH WIND WARNING WILL EXPIRE AT 8 PM MST THIS EVENING...

Widespread high wind speeds will not occur after 8 PM. However,
some gusts of 55 to 60 mph will occur on Wyoming Boulevard over to
Hat Six Road through midnight. 

$$

WYZ019-150400-
/O.EXP.KRIW.HW.W.0022.000000T0000Z-211215T0300Z/
Green Mountains and Rattlesnake Range-
Including the city of Jeffrey City
751 PM MST Tue Dec 14 2021

...HIGH WIND WARNING WILL EXPIRE AT 8 PM MST THIS EVENING...

Widespread high wind speeds will not occur after 8 PM. However,
some gusts of 30 to 40 mph will occur through midnight.

$$

WYZ015-150400-
/O.EXP.KRIW.HW.W.0022.000000T0000Z-211215T0300Z/
Wind River Mountains East-
751 PM MST Tue Dec 14 2021

...HIGH WIND WARNING WILL EXPIRE AT 8 PM MST THIS EVENING...

Widespread high wind speeds will not occur after 8 PM. However,
some gusts of 45 to 55 mph will occur through midnight around Red
Canyon. 

$$

WYZ018-150400-
/O.EXP.KRIW.HW.W.0022.000000T0000Z-211215T0300Z/
Lander Foothills-
Including the city of Lander
751 PM MST Tue Dec 14 2021

...HIGH WIND WARNING WILL EXPIRE AT 8 PM MST THIS EVENING...

Widespread high wind speeds will not occur after 8 PM. However,
some gusts of 45 to 50 mph will occur through late evening.

$$

WYZ030-150400-
/O.EXP.KRIW.HW.W.0022.000000T0000Z-211215T0300Z/
East Sweetwater County-
Including the city of Wamsutter
751 PM MST Tue Dec 14 2021

...HIGH WIND WARNING WILL EXPIRE AT 8 PM MST THIS EVENING...

Widespread high wind speeds will not occur after 8 PM. However,
some gusts of 30 to 40 mph will occur through midnight.

$$

WYZ009-011-150400-
/O.EXP.KRIW.HW.W.0022.000000T0000Z-211215T0300Z/
Bighorn Mountains Southeast-Southeast Johnson County-
Including the city of Kaycee
751 PM MST Tue Dec 14 2021

...HIGH WIND WARNING WILL EXPIRE AT 8 PM MST THIS EVENING...

Widespread high wind speeds will not occur after 8 PM. However,
some gusts of 30 to 40 mph will occur through midnight.

$$

WYZ016-150400-
/O.EXP.KRIW.HW.W.0022.000000T0000Z-211215T0300Z/
Upper Wind River Basin-
Including the city of Dubois
751 PM MST Tue Dec 14 2021

...HIGH WIND WARNING WILL EXPIRE AT 8 PM MST THIS EVENING...

Widespread high wind speeds will not occur after 8 PM. However,
some gusts of 25 to 35 mph will occur through midnight.

$$

For more information from the National Weather Service visit
https://weather.gov/riw

The office that day

Everything else NWS Riverton, WY issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Dec 12, 7:13 PM MSTHigh Wind WatchRIWFremont, Johnson, Natrona, Sublette, Sweetwater, Washakie25 hr
Dec 13, 1:50 PM MSTWinter Weather AdvisoryRIWFremont, Lincoln, Park, Sublette, Teton48 hr

Nearby

High Wind Warnings in Wyoming, 2021Every high wind warning in 2021

Sources

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