Alert archive / Montana / Blizzard Warnings in 2009

Blizzard Warning 3, NWS Glasgow, MT

March 29, 2009Dawson County, Prairie County, Wibaux County, Montana

NWS Glasgow, MT issued this blizzard warning at Mar 29, 2009, 2:40 AM MDT for Dawson County, Prairie County, Wibaux County, Montana. It took effect at Mar 29, 2009, 12:00 PM MDT. It was in force for 24 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Mar 29, 2009, 2:40 AM MDT (08:40 UTC)
In effect from
Mar 29, 2009, 12:00 PM MDT
Expired
Mar 30, 2009, 12:00 PM MDT
In force
24 hr
Issued by
NWS Glasgow, MT

Counties Dawson County, MT, Prairie County, MT, Wibaux County, MT

The radar

The Glasgow radar (KGGW), 187 km from the middle of the area, began a volume at 08:41 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

Bismarck Municip, ND (KBIS), launched 00:00Z, 8.7 hours before the alert went out and 316 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, Bismarck Municip, ND at 00:00Z on 2009-03-29Temperature 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 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Bismarck Municip, ND at 00:00Z on 2009-03-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -12 square meters per square second.193958Sfc1 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
1215 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
-12 m²/s²
0-3 km storm-relative helicity
-28 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this blizzard warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Glasgow, MT wrote its last area forecast discussion before this blizzard warning went out at Mar 28, 9:21 PM MDT, 5 hours 19 minutes earlier.

Area forecast discussion, Mar 28, 9:21 PM MDT, 5 hours 19 minutes before
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Hazardous weather outlook, Mar 28, 3:33 PM MDT, 11 hours 7 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GLASGOW MT
333 PM MDT SAT MAR 28 2009

MTZ016-017-020-023-024-059-060-291200-
CENTRAL AND SOUTHEAST PHILLIPS-CENTRAL AND SOUTHERN VALLEY-
WESTERN ROOSEVELT-MCCONE-RICHLAND-NORTHERN PHILLIPS-
SOUTHWEST PHILLIPS-
333 PM MDT SAT MAR 28 2009

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHEAST
MONTANA.

.DAY ONE...THIS AFTERNOON AND TONIGHT

NO HAZARDOUS WEATHER EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

A STRONG WINTER STORM WILL IMPACT NORTHEAST MONTANA SUNDAY AND
INTO MONDAY. THE STORM TRACK WILL BRING ACCUMULATING SNOW OVER
MOST OF EASTERN MONTANA...INCLUDING AREAS OF HEAVY SNOW MAINLY
SOUTH OF THE MISSOURI RIVER. THE HEAVIEST SNOW IS EXPECTED TO
OCCUR SUNDAY WITH AN ACCUMULATION OF 2 TO 4 INCHES. STRONG WINDS
ARE ALSO EXPECTED WITH THIS STORM...IN THE RANGE OF 20 TO 40 MPH
WITH GUSTS TO 50 MPH. THIS COULD CAUSE AREAS OF BLOWING AND
DRIFTING SNOW WITH REDUCED VISIBILITIES AND NEAR WHITEOUT
CONDITIONS. THIS COULD MAKE ANY TRAVEL HAZARDOUS SUNDAY THROUGH
MONDAY MORNING. THEREFORE A WINTER WEATHER ADVISORY HAS BEEN
ISSUED FOR SUNDAY.

OTHER SPRING STORM SYSTEMS MAY AFFECT THE AREA MIDWEEK THEN AGAIN
INTO NEXT WEEKEND.

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

MTZ018-019-061-062-291200-
DANIELS-SHERIDAN-NORTHERN VALLEY-EASTERN ROOSEVELT-
333 PM MDT SAT MAR 28 2009

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHEAST
MONTANA.

.DAY ONE...THIS AFTERNOON AND TONIGHT

NO HAZARDOUS WEATHER EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

A STRONG WINTER STORM WILL IMPACT NORTHEAST MONTANA SUNDAY AND
INTO MONDAY. HOWEVER THE STORM TRACK HAS SHIFTED TO THE SOUTH AND
IS NOT EXPECTED TO IMPACT THE NORTHERN ZONES.

OTHER SPRING STORM SYSTEMS MAY AFFECT THE AREA MIDWEEK AND NEXT
WEEKEND.

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

MTZ021-022-025>027-291200-
PETROLEUM-GARFIELD-DAWSON-PRAIRIE-WIBAUX-
333 PM MDT SAT MAR 28 2009

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHEAST
MONTANA.

.DAY ONE...THIS AFTERNOON AND TONIGHT

NO HAZARDOUS WEATHER EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

A STRONG WINTER STORM WILL IMPACT NORTHEAST MONTANA SUNDAY AND
INTO MONDAY. THE STORM TRACK WILL BRING ACCUMULATING SNOW OVER
MOST OF EASTERN MONTANA...INCLUDING AREAS OF HEAVY SNOW MAINLY
SOUTH OF THE MISSOURI RIVER. THE HEAVIEST SNOW IS EXPECTED TO
OCCUR SUNDAY NIGHT WITH ACCUMULATION OF AROUND 7 INCHES. STRONG
WINDS ARE ALSO EXPECTED WITH THIS STORM...IN THE RANGE OF 20 TO 40
MPH WITH GUSTS TO 50 MPH. THIS COULD CAUSE AREAS OF BLOWING AND
DRIFTING SNOW WITH REDUCED VISIBILITIES AND NEAR WHITEOUT
CONDITIONS. THIS COULD MAKE ANY TRAVEL HAZARDOUS SUNDAY THROUGH
MONDAY MORNING. THEREFORE A WINTER STORM WARNING HAS BEEN ISSUED
FOR SUNDAY.

OTHER SPRING STORM SYSTEMS MAY AFFECT THE AREA MIDWEEK THEN AGAIN
INTO NEXT WEEKEND.

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

Nearby

Blizzard Warnings in Montana, 2009Every blizzard warning in 2009

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.