High Wind in Wyoming, March 27, 2007

Name: High Wind in Wyoming, March 27, 2007
Start: 2007-03-27T05:00
End: 2007-03-27T17:00
Location: Wyoming

March 27, 2007 · NWS UNR · 4 events in 4 counties and zones

Gusty southeast winds developed across northeast Wyoming ahead of a strong storm system. Sustained winds of 30 to 45 mph, with gusts to 60 mph, were recorded across most of the area.

Where it happened

Every event with a place to put it; 4 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.

Tornadoes
Tropical storms and surge
Floods
Wind
Hail
Winter weather
Heat and drought
Cold
Fire, smoke and dust
Marine and coastal
Other

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The toll

Deaths: 0
Injuries: 0
Property damage: None recorded
Crop damage: None recorded
Events: 4

Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

What happened

The episode as NWS UNR wrote it up.

Gusty southeast winds developed across northeast Wyoming ahead of a strong storm system. Sustained winds of 30 to 45 mph, with gusts to 60 mph, were recorded across most of the area.

What forecasters said that day

The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Rapid City, SD wrote its last area forecast discussion before the first event at Mar 27, 2:55 AM MST, 2 hours 5 minutes earlier.

Area forecast discussion, Mar 27, 2:55 AM MST, 2 hours 5 minutes before

AREA FORECAST DISCUSSION FOR WESTERN SD AND NORTHEASTERN WY
NATIONAL WEATHER SERVICE RAPID CITY SD
356 AM MDT TUES MAR 27 2007

.DISCUSSION...08Z SFC ANALYSIS SHOWS LOW PRESSURE OVER SOUTHEASTERN
IDAHO/NORTHERN UTAH...WITH HIGH PRESSURE OVER THE EASTERN
DAKOTAS/MINNESOTA. RESULTING TIGHT SFC PRESSURE GRADIENT WILL LEAD
TO VERY WINDY CONDITIONS OVER NORTHEASTERN WYOMING AND NORTHWESTERN
SOUTH DAKOTA TODAY.

FOR TODAY...SOUTHEAST WINDS WILL CONTINUE TO INCREASE OVER NERN WY
AND NWRN SD TODAY. BOTH GFS/NAM CONTINUE TO SHOW HIGH WINDS
DEVELOPING OVER THOSE AREAS TODAY WITH WIND ADVISORY CRITERIA WINDS
OVER SOUTHWESTERN AND WEST CENTRAL SOUTH DAKOTA. THEREFORE WILL
CONTINUE THE WIND HIGHLIGHTS OVER THOSE AREAS THROUGH TODAY.
WEAK SHORTWAVE CURRENTLY APPROACHING THE BLACK HILLS HAS KICKED OFF
A COUPLE OF SHOWERS WEST OF THE BLACK HILLS THIS MORNING...TRAVELING
NORTHEAST. NEXT STRONGER SHORTWAVE WILL CROSS NORTHEASTERN WY/WRN SD
LATER THIS AFTERNOON/EVENING...INCREASING THE THUNDERSTORM CHANCES
THERE. PLENTY OF UPR LVL DIVERGENCE EXISTS AHEAD OF THE APPROACHING
UPPER LOW...ALONG WITH SUFFICIENT DEEP LAYER SHEAR FOR
SUPERCELLS...ALTHOUGH PROBABLY NOT ENOUGH CAPE FOR A WDSPRD
ORGANIZED EVENT.

ON WEDNESDAY...THERE CONTINUES TO BE A WIDE INCONSISTENCY BETWEEN
THE GFS/NAM AND THE ECMWF. THE GFS AND NAM ARE NOW SHOWING THE UPPER
LOW MOVING INTO WESTERN SOUTH DAKOTA...AND THEN BECOMING NEARLY
STATIONARY BEFORE MOVING OFF ON FRIDAY. THIS WOULD PRODUCE LARGE
AMOUNTS OF PRECIPITATION WEST OF THE LOW OVER EASTERN WYOMING...WITH
LESSER AMOUNTS EAST OF THE LOW WHERE A DRY SLOT WOULD BE EXPECTED TO
DEVELOP. HOWEVER...THE ECMWF CONTINUES TO PASS THE UPR LOW FARTHER
SOUTH WHICH WOULD BRING MORE COLD AIR AND A GREATER THREAT FOR
ACCUMULATING SNOW...WITH THE HIGHEST AMOUNTS LIKELY SOUTH OF OUR
FORECAST AREA. WITH BOTH THE NAM AND GFS SHOWING THE POTENTIAL FOR
HEAVY SNOWFALL OVER NORTHEASTERN WYOMING AND THE BLACK HILLS...HAVE
DECIDED IT WOULD BE PRUDENT TO ISSUE A WINTER STORM WATCH FOR THOSE
AREAS FROM MIDDAY WEDNESDAY THROUGH THURSDAY...AS COLDER AIR SWEEPS
INTO NORTHEASTERN WYOMING AND THE BLACK HILLS AREA ON THE BACK SIDE
OF THE LOW. EXPECT FALLING TEMPERATURES DURING THE AFTERNOON FOR
THOSE AREAS. MEANWHILE...THERE IS A SLIGHT RISK OF SEVERE
THUNDERSTORMS ON WEDNESDAY AFTN/EVE OUT AHEAD OF THE LOW OVER
PORTIONS OF WESTERN AND CENTRAL SOUTH DAKOTA. THE COLDER AIR WILL
CONTINUE TO SWEEP EAST ON WEDNESDAY NIGHT AND THURSDAY...LEADING TO
A CHANCE OF SNOW OVER FAR WESTERN SOUTH DAKOTA AND RAIN OR SNOW TO
THE EAST.

EXTENDED...THE STORM SYSTEM WILL MOVE EAST OF THE AREA FRIDAY.
INCONSISTENCIES WITHIN DIFFERENT MODELS AGAIN CONTINUES...SO HAVE
LEFT PREVIOUS FORECAST LARGELY UNCHANGED. DID ADD SOME CHANCE POPS
FRIDAY ACROSS THE NORTH WITH THE POSSIBILITY THAT THE DEFORMATION
ZONE WILL BE SLOW TO LEAVE. OTHERWISE THING SLIGHT CHANCE POPS ARE
WELL SUITED FRIDAY AND FRIDAY NIGHT. UPPER LEVEL RIDGING WILL BUILD
FOR THE WEEKEND...HOWEVER WITH THE MAIN UPPER FLOW JUST NORTH OF THE
AREA...WE COULD SEE A SHORTWAVE OR TWO MOVE THROUGH THE AREA. WITH
DRY AIR IN PLACE...DONT BELIEVE AT THIS TIME IT WILL PRODUCE
ANYTHING MORE THAN SOME CLOUDS.

&&

.AVIATION...SHOWERS AND THUNDERSTORMS WILL BE POSSIBLE LATER THIS
AFTERNOON AND EVENING ESPECIALLY ACROSS THE WYOMING TWEB ROUTES.
VERY STRONG WINDS ARE EXPECTED TO CONTINUE TODAY ACROSS THE KGCC
AREA WITH GUSTS TO 50KT.

&&

.UNR WATCHES/WARNINGS/ADVISORIES...
SD...HIGH WIND WARNING TODAY FOR NORTHWESTERN SD.
  ...WIND ADVISORY TODAY FOR WEST CENTRAL AND SOUTHWESTERN SD.
  ...WINTER STORM WATCH MIDDAY WEDNESDAY THROUGH THURSDAY FOR THE
     BLACK HILLS.
WY...HIGH WIND WARNING TODAY FOR NORTHEASTERN WYOMING.
  ...WINTER STORM WATCH MIDDAY WEDNESDAY THROUGH THURSDAY FOR
     NORTHEASTERN WYOMING.

&&

Hazardous weather outlook, Mar 27, 4:50 AM MST, 10 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE RAPID CITY SD
550 AM MDT TUE MAR 27 2007

SDZ001-002-012>014-024>032-041>044-046-047-049-072>074-WYZ054>058-
071-281300-
BENNETT-BUTTE-CENTRAL BLACK HILLS-CUSTER CO PLAINS-FALL RIVER-HAAKON-
HARDING-HERMOSA FOOT HILLS-JACKSON-MELLETTE-NORTHEASTERN CROOK-
NORTHERN BLACK HILLS-NORTHERN CAMPBELL-NORTHERN FOOT HILLS-
NORTHERN MEADE CO PLAINS-PENNINGTON CO PLAINS-PERKINS-RAPID CITY-
SHANNON-SOUTHERN BLACK HILLS-SOUTHERN CAMPBELL-SOUTHERN FOOT HILLS-
SOUTHERN MEADE CO PLAINS-STURGIS/PIEDMONT FOOT HILLS-TODD-TRIPP-
WESTERN CROOK-WESTON-WYOMING BLACK HILLS-ZIEBACH-
550 AM MDT (650 AM CDT) TUE MAR 27 2007

...HIGH WIND WARNING TODAY FOR NORTHEASTERN WYOMING AND NORTHWESTERN
SOUTH DAKOTA...
...WIND ADVISORY TODAY FOR WEST CENTRAL AND SOUTHWESTERN SOUTH
DAKOTA...
...WINTER STORM WATCH FROM MIDDAY WEDNESDAY THROUGH THURSDAY FOR
NORTHEASTERN WYOMING AND THE BLACK HILLS...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN SOUTH DAKOTA AND
NORTHEASTERN WYOMING.

.DAY ONE...TODAY AND TONIGHT

AN APPROACHING LOW PRESSURE SYSTEM WILL PRODUCE STRONG AND GUSTY
SOUTHERLY WINDS OVER NORTHEASTERN WYOMING AND NORTHWESTERN SOUTH
DAKOTA TODAY. A HIGH WIND WARNING HAS BEEN ISSUED FOR THOSE AREAS
TODAY...WITH A WIND ADVISORY OVER PORTIONS OF WEST CENTRAL AND
SOUTHWESTERN SOUTH DAKOTA.

AN UPPER LEVEL DISTURBANCE MOVING THROUGH THE AREA WILL BRING A
CHANCE OF THUNDERSTORMS TO NORTHEASTERN AND FAR WESTERN SOUTH DAKOTA
THIS AFTERNOON AND EVENING. SEVERE STORMS ARE NOT EXPECTED AT
THIS TIME.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

A STRONG LOW PRESSURE SYSTEM WILL MOVE INTO THE AREA ON
WEDNESDAY...AND WILL LINGER INTO FRIDAY. THUNDERSTORMS ARE EXPECTED
AHEAD OF THIS LOW OVER PORTIONS OF WESTERN AND CENTRAL SOUTH DAKOTA.
THERE IS A SLIGHT RISK THAT SOME OF THESE THUNDERSTORMS MAY BECOME
SEVERE ON WEDNESDAY AFTERNOON AND EVENING...MAINLY EAST OF A LINE
FROM FAITH TO EDGEMONT. LARGE HAIL WILL BE THE PRIMARY THREAT FROM
THESE STORMS...THOUGH DAMAGING WIND GUSTS WILL ALSO BE POSSIBLE.

MEANWHILE BACK TO THE WEST...MUCH COLDER AIR WILL BEGIN TO FLOW INTO
NORTHEASTERN WYOMING AND THE BLACK HILLS ON WEDNESDAY AFTERNOON.
RAINFALL OVER THOSE AREAS IS EXPECTED TO TURN TO SNOW BY WEDNESDAY
EVENING...WITH HEAVY SNOWFALL ACCUMULATIONS POSSIBLE FROM WEDNESDAY
NIGHT INTO THURSDAY AFTERNOON. THE EXACT STORM TRACK AND TIMING IS
STILL UNCERTAIN...BUT DUE TO THE POSSIBILITY OF HEAVY SNOW...A
WINTER STORM WATCH HAS BEEN ISSUED FOR NORTHEASTERN WYOMING AND THE
BLACK HILLS FROM WEDNESDAY AFTERNOON INTO THURSDAY AFTERNOON.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY.

The radar

The national radar mosaic for the moment the first event began.

Open the radar archive at this moment

Event by event

4 high wind. Local standard time, as filed.

High Wind, Northern Campbell

When: March 27, 5:00 AM MST to 5:00 PM MST
Where: Northern Campbell forecast zone
Measured: 51 kt (59 mph) measured gust
Reported by: Mesonet
Coordinates: 44.248, -105.548 (the zone’s center; the record gives no point)

High Wind, Western Crook

When: March 27, 5:00 AM MST to 5:00 PM MST
Where: Western Crook forecast zone
Measured: 37 kt (43 mph) measured sustained
Reported by: Mesonet
Coordinates: 44.589, -104.570 (the zone’s center; the record gives no point)

High Wind, South Campbell

When: March 27, 5:00 AM MST to 4:00 PM MST
Where: South Campbell forecast zone
Measured: 36 kt (41 mph) measured sustained
Reported by: Mesonet
Coordinates: 44.248, -105.548 (the zone’s center; the record gives no point)

High Wind, Weston

When: March 27, 7:00 AM MST to 3:00 PM MST
Where: Weston forecast zone
Measured: 35 kt (40 mph) estimated sustained
Reported by: COOP Observer
Coordinates: 43.841, -104.568 (the zone’s center; the record gives no point)

What these are

High Wind: Sustained non-thunderstorm winds of 40 mph or more for an hour, or gusts of 58 mph or more.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

Every storm in Wyoming in 2007 Every state in 2007 This day in weather history Warnings in Wyoming, March 2007

Sources

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 22801, 22802, 22803, 22804.